Revistas
Autores:
García, S.; Bouzas, C.; Mateos, D.; et al.
Revista:
ENVIRONMENTAL HEALTH
ISSN:
1476-069X
Año:
2023
Vol.:
22
N°:
1
Págs.:
1
Background Research related to sustainable diets is is highly relevant to provide better understanding of the impact of dietary intake on the health and the environment. Aim To assess the association between the adherence to an energy-restricted Mediterranean diet and the amount of CO2 emitted in an older adult population. Design and population Using a cross-sectional design, the association between the adherence to an energy-reduced Mediterranean Diet (erMedDiet) score and dietary CO2 emissions in 6646 participants was assessed. Methods Food intake and adherence to the erMedDiet was assessed using validated food frequency questionnaire and 17-item Mediterranean questionnaire. Sociodemographic characteristics were documented. Environmental impact was calculated through greenhouse gas emissions estimations, specifically CO2 emissions of each participant diet per day, using a European database. Participants were distributed in quartiles according to their estimated CO2 emissions expressed in kg/day: Q1 (<= 2.01 kg CO2), Q2 (2.02-2.34 kg CO2), Q3 (2.35-2.79 kg CO2) and Q4 (>= 2.80 kg CO2). Results More men than women induced higher dietary levels of CO2 emissions. Participants reporting higher consumption of vegetables, fruits, legumes, nuts, whole cereals, preferring white meat, and having less consumption of red meat were mostly emitting less kg of CO2 through diet. Participants with higher adherence to the Mediterranean Diet showed lower odds for dietary CO2 emissions: Q2 (OR 0.87; 95%CI: 0.76-1.00), Q3 (OR 0.69; 95%CI: 0.69-0.79) and Q4 (OR 0.48; 95%CI: 0.42-0.55) vs Q1 (reference). Conclusions The Mediterranean diet can be environmentally protective since the higher the adherence to the Mediterranean diet, the lower total dietary CO2 emissions. Mediterranean Diet index may be used as a pollution level index.
Autores:
Martínez-Urbistondo, D. (Autor de correspondencia); San-Cristóbal, R.; Villares, P.; et al.
Revista:
FRONTIERS IN ENDOCRINOLOGY
ISSN:
1664-2392
Año:
2023
Vol.:
13
Págs.:
1113532
Autores:
Cano-Ibanez, N. (Autor de correspondencia); Serra-Majem, L.; Martin-Pelaez, S.; et al.
Revista:
PUBLIC HEALTH NUTRITION
ISSN:
1368-9800
Año:
2023
Vol.:
26
N°:
3
Págs.:
598 - 610
Objective: To examine the cross-sectional and longitudinal (2-year follow-up) associations between dietary diversity (DD) and depressive symptoms. Design: An energy-adjusted dietary diversity score (DDS) was assessed using a validated FFQ and was categorised into quartiles (Q). The variety in each food group was classified into four categories of diversity (C). Depressive symptoms were assessed with Beck Depression Inventory-II (Beck II) questionnaire and depression cases defined as physician-diagnosed or Beck II >= 18. Linear and logistic regression models were used. Setting: Spanish older adults with metabolic syndrome (MetS). Participants: A total of 6625 adults aged 55-75 years from the PREDIMED-Plus study with overweight or obesity and MetS. Results: Total DDS was inversely and statistically significantly associated with depression in the cross-sectional analysis conducted; OR Q4 v. Q1 = 0 center dot 76 (95 % CI (0 center dot 64, 0 center dot 90)). This was driven by high diversity compared to low diversity (C3 v. C1) of vegetables (OR = 0 center dot 75, 95 % CI (0 center dot 57, 0 center dot 93)), cereals (OR = 0 center dot 72 (95 % CI (0 center dot 56, 0 center dot 94)) and proteins (OR = 0 center dot 27, 95 % CI (0 center dot 11, 0 center dot 62)). In the longitudinal analysis, there was no significant association between the baseline DDS and changes in depressive symptoms after 2 years of follow-up, except for DD in vegetables C4 v. C1 = (beta = 0 center dot 70, 95 % CI (0 center dot 05, 1 center dot 35)). Conclusions: According to our results, DD is inversely associated with depressive symptoms, but eating more diverse does not seem to reduce the risk of future depression. Additional longitudinal studies (with longer follow-up) are needed to confirm these findings.
Autores:
Khoury, N.; Martínez, M. Á. (Autor de correspondencia); Paz-Graniel, I.; et al.
Revista:
ENVIRONMENTAL RESEARCH
ISSN:
0013-9351
Año:
2023
Vol.:
227
Págs.:
115697
Introduction: The principal source of exposure to Polychlorinated dibenzo-p-dioxins and polychlorinated dibenzo-p-furans (PCDD/Fs) in humans comes from food intake. PCDD/Fs, are a family of potential endocrine disruptors and have been associated with different chronic diseases such as diabetes and hypertension. However, studies assessing the relationship between dietary exposure to PCDD/Fs and adiposity or obesity status in a middle-aged population are limited.Objective: To assess cross-sectionally and longitudinally the associations between estimated dietary intake (DI) of PCDD/Fs and body mass index (BMI), waist circumference, and the prevalence/incidence of obesity and abdominal obesity in a middle-aged population.Methods: In 5899 participants aged 55-75 years (48% women) living with overweight/obesity from the PREDIMED-plus cohort, PCDD/Fs DI was estimated using a 143-item validated food-frequency questionnaire, and the levels of food PCDD/F expressed as Toxic Equivalents (TEQ). Consequently, cross-sectional and pro-spective associations between baseline PCDD/Fs DI (in pgTEQ/week) and adiposity or obesity status were assessed at baseline and after 1-year follow-up using multivariable cox, logistic or linear regression models.Results: Compared to participants in the first PCDD/F DI tertile, those in the highest tertile presented a higher BMI (beta-coefficient [confidence interval]) (0.43kg/m2 [0.22; 0.64]; P-trend <0.001), a higher waist circumfer-ence (1.11 cm [0.55; 1.66]; P-trend <0.001), and a higher prevalence of obesity and abdominal obesity (1.05 [1.01; 1.09] and 1.02 [1.00; 1.03]; P-trend = 0.09 and 0.027, respectively). In the prospective analysis, par-ticipants in the top PCDD/F DI baseline tertile showed an increase in waist circumference compared with those in the first tertile after 1-year of follow-up (beta-coefficient 0.37 cm [0.06; 0.70]; P-trend = 0.015).Conclusion: Higher DI of PCDD/Fs was positively associated with adiposity parameters and obesity status at baseline and with changes in waist circumference after 1-year of follow-up in subjects living with overweight/ obesity. Further large prospective studies using a different population with longer follow-up periods are war-ranted in the future to strengthen our results.
Revista:
FOOD & FUNCTION
ISSN:
2042-6496
Año:
2023
Vol.:
14
N°:
2
Págs.:
1011 - 1023
Background: Dietary flavonoid intake is associated with a reduced risk of some cardiometabolic disorders, attributed in part to their claimed anti-inflammatory activity. Our aim was to investigate the potential association between specific urine flavonoid metabolites, liver enzymes, and inflammatory status in individuals with metabolic syndrome (MetS). Methods: In this cross-sectional study, clinical and dietary data from 267 participants, aged 55 to 75 years, participating in the PREDIMED Plus study (PREvencion con DIeta MEDiterranea) were analyzed. At the baseline, spot urine samples were collected and seven urinary flavonoid metabolites were quantified using ultra-performance liquid chromatography coupled to triple quadrupole mass spectrometry (UPLC-Q-q-Q MS). Liver enzymes, inflammatory scores, and urinary flavonoid concentrations were inverse normally transformed. Results: Adjusted linear regression models showed an inverse association between urinary citrus flavanone concentrations and gamma-glutamyl transferase (GGT) (all p-values <0.05). Naringenin 7 '-GlcUA was significantly associated with a lower aggregate index of systemic inflammation (AISI) (B-per 1SD = -0.14; 95% CI: -0.27 to -0.02; p-value = 0.025) and systemic inflammation index (SII) (B-per 1SD = -0.14; 95% CI: -0.27 to -0.02; p-value = 0.028). To investigate the relationship between flavanone subclasses and GGT levels, we fitted a score of citrus-flavanones, and subjects were stratified into quartiles. The highest values of the citrus-flavanone score (per 1-SD increase) were associated with lower GGT levels (B-per 1SD = -0.41; 95% CI: -0.74 to -0.07), exhibiting a linear trend across quartiles (p-trend = 0.015). Conclusion: This cross-sectional study showed that higher urinary excretion of citrus-flavanone metabolites was associated with lower GGT levels in subjects diagnosed with MetS and obesity.
Revista:
PANMINERVA MEDICA
ISSN:
0031-0808
Año:
2022
Vol.:
64
N°:
4
Págs.:
485 - 496
BACKGROUND: Non-alcoholic fatty liver disease (NAFLD) development is linked to insulin resistance and influenced by environmental fac-tors, but it also underlined a genetic predisposition. The aim of this research was to build a predictive model based on genetic and hepatic health information, deeming insulin resistance markers in order to personalize dietary treatment in overweight/obese subjects with NAFLD.METHODS: A 6-month nutritional intervention was conducted in 86 overweight/obese volunteers with NAFLD randomly assigned to 2 energy-restricted diets: the American Heart Association (AHA) diet and the Fatty Liver in Obesity (FLiO) diet. Individuals were genotyped using a pre-designed panel of 95 genetic variants. A Genetic Risk Score (GRS) for each diet was computed using statistically relevant SNPs for the change on Fatty Liver Index (FLI) after 6-months of nutritional intervention. Body composition, liver injury and insulin resistance markers, as well as physical activity and dietary intake were also assessed.RESULTS: Under energy restriction, both the AHA and FLiO diets induced similar significant improvements on body composition, insulin re-sistance markers, hepatic health and dietary and lifestyle outcomes. The calculated score included in the linear mixed regression model was able to predict the change of FLI adjusted by diet, age and sex. This model allowed to personalize the most suitable diet for 72% of the volunteers. Similar models were also able to predict the changes on Triglycerides and Glucose (TyG) Index and retinol-binding protein 4 (RBP4) levels depending on diet.CONCLUSIONS: Models integrating genetic screening and insulin resistance markers can be useful for the personalization of NAFLD weight loss treatments.
Autores:
Cano-Ibáñez, N. (Autor de correspondencia); Serra-Majem, L.; Martin-Peláez, S.; et al.
Revista:
BRITISH JOURNAL OF NUTRITION
ISSN:
0007-1145
Año:
2022
Vol.:
128
N°:
6
Págs.:
1170 - 1179
The burden of depression is increasing worldwide, specifically in older adults. Unhealthy dietary patterns may partly explain this phenomenon. In the Spanish PREDIMED-Plus study, we explored (1) the cross-sectional association between the adherence to the Prime Diet Quality Score (PDQS), an a priori-defined high-quality food pattern, and the prevalence of depressive symptoms at baseline (cross-sectional analysis) and (2) the prospective association of baseline PDQS with changes in depressive symptomatology after 2 years of follow-up. After exclusions, we assessed 6612 participants in the cross-sectional analysis and 5523 participants in the prospective analysis. An energy-adjusted high-quality dietary score (PDQS) was assessed using a validated FFQ. The cross-sectional association between PDQS and the prevalence of depression or presence of depressive symptoms and the prospective changes in depressive symptoms were evaluated through multivariable regression models (logistic and linear models and mixed linear-effects models). PDQS was inversely associated with depressive status in the cross-sectional analysis. Participants in the highest quintile of PDQS (Q5) showed a significantly reduced odds of depression prevalence as compared to participants in the lowest quartile of PDQS (Q1) (OR (95 %) CI = 0 center dot 82 (0 center dot 68, 0 center dot 98))). The baseline prevalence of depression decreased across PDQS quintiles (P (for trend) = 0 center dot 015). A statistically significant association between PDQS and changes in depressive symptoms after 2-years follow-up was found (beta (95 %) CI = -0 center dot 67 z-score (-1 center dot 17, -0 center dot 18). A higher PDQS was cross-sectionally related to a lower depressive status. Nevertheless, the null finding in our prospective analysis raises the possibility of reverse causality. Further prospective investigation is required to ascertain the association between PDQS and changes in depressive symptoms along time.
Autores:
Bouzas, C. ; Bibiloni, M. D.; Garcia, S.; et al.
Revista:
FRONTIERS IN NUTRITION
ISSN:
2296-861X
Año:
2022
Vol.:
9
Págs.:
848055
Background: Metabolic syndrome (MetS) worsens quality of life and increases mortality. Dissatisfaction with weight in patients with MetS may modify the effect of lifestyle interventions to achieve changes in health-related behaviors. Objective: To assess 1-year changes in cardiovascular risk scores, self-perceived general health and health-related behaviors according to observed changes in desired weight loss during the first year of intervention in a large cardiovascular prevention trial. Design: Prospective analysis of the PREDIMED-PLUS trial, including 5,499 adults (55-75 years old) with overweight or obesity at baseline. Methods: The desired weight loss was the difference between ideal and measured weight. Tertiles of change in desired weight loss (1 year vs. baseline) were defined by the following cut-off points: >= 0.0 kg (T1, n = 1,638); 0.0 to -4.0 kg (T2, n = 1,903); <=-4.0 kg (T3, n = 1,958). A food frequency questionnaire assessed diet and the Minnesota-REGICOR questionnaire assessed physical activity. The Framingham equation assessed cardiovascular risks. The changes in the severity of MetS were also assessed. The Beck Depression Inventory assessed depressive symptoms and the SF-36 assessed health-related quality of life. Data were analyzed using general linear models. Results: BMI decreased at T2 and T3 (T1: 0.3, T2: -0.7, T3: -1.9). The most significant improvement in diet quality was observed at T3. Cardiovascular risk decreased at T2 and T3. Mean reductions in MetS severity score were: -0.02 at T1, -0.39 at T2 and -0.78 at T3. The perception of physical health increases in successive tertiles. Conclusions: In older adults with MetS, more ambitious desired weight loss goals were associated with improvements in diet, cardiovascular health and perceived physical health during the first year of a healthy lifestyle intervention programme. Weight dissatisfaction needs to be considered by health professionals.
Autores:
Konieczna, J. (Autor de correspondencia); Fiol, M.; Colom, A.; et al.
Revista:
NUTRIENTS
ISSN:
2072-6643
Año:
2022
Vol.:
14
N°:
19
Págs.:
4142
Non-alcoholic fatty liver disease (NAFLD) includes a spectrum of liver alterations that can result in severe disease and even death. Consumption of ultra-processed foods (UPF) has been associated with obesity and related comorbidities. However, the link between UPF and NAFLD has not been sufficiently assessed. We aimed to investigate the prospective association between UPF consumption and liver health biomarkers. Methods: We followed for 1 year 5867 older participants with overweight/obesity and metabolic syndrome (MetS) from the PREDIMED-Plus trial. A validated 143-item semi-quantitative food frequency questionnaire was used to evaluate consumption of UPF at baseline, 6, and 12 months. The degree of processing for foods and beverages (g/day) was established according to the NOVA classification system. The non-invasive fatty liver index (FLI) and hepatic steatosis index (HSI) were used to evaluate liver health at three points in time. The associations between changes in UPF consumption (percentage of total daily dietary intake (g)) and liver biomarkers were assessed using mixed-effects linear models with repeated measurements. Results: In this cohort, UPF consumption at baseline was 8.19% (SD 6.95%) of total daily dietary intake in grams. In multivariable models, each 10% daily increment in UPF consumption in 1 year was associated with significantly greater FLI (beta 1.60 points, 95% CI 1.24;1.96 points) and HSI (0.43, 0.29; 0.57) scores (all p-values < 0.001). These associations persisted statistically significant after adjusting for potential dietary confounders and NAFLD risk factors. Conclusions: A higher UPF consumption was associated with higher levels of NAFLD-related biomarkers in older adults with overweight/obesity and MetS.
Autores:
Montemayor, S.; Bouzas, C.; Mascaro, C. M.; et al.
Revista:
NUTRIENTS
ISSN:
2072-6643
Año:
2022
Vol.:
14
N°:
11
Págs.:
2223
Background: Adults with fatty liver present unusual glycaemia and lipid metabolism; as a result, non-alcoholic fatty liver disease (NAFLD) is now considered as part of the metabolic syndrome (MetS). Objective: To assess the 6- and 12-month effects of customized hypocaloric dietary and enhanced physical activity intervention on intrahepatic fat contents and progression of NAFLD, in patients with MetS. Design: Cross-sectional study in 155 participants (40-60 years old) from Balearic Islands and Navarra (Spain) with a diagnosis of NAFLD and MetS, and BMI (body mass index) between 27 and 40 kg/m(2); patients were randomized in a 1:1:1 ratio to either Conventional Diet, Mediterranean diet (MD)-high meal frequency, and MD-physical activity groups. Methods: Dietary intake was assessed using a validated food frequency questionnaire. Adherence to Mediterranean diet, anthropometrics, physical activity, and biochemical parameters (fasting glucose, glycated hemoglobin, bilirubin, aspartate aminotransferase, alanine aminotransferase-ALT-, gamma-glutamyl transferase, uric acid, urea, creatinine, albumin, total cholesterol, high-density lipoprotein cholesterol-HDL-cholesterol-, and triglycerides) were also assessed. Results: Subjects with NAFLD and MetS had reduced intrahepatic fat contents, and liver stiffness, despite the intervention the participants went through. All participants ameliorated BMI, insulin, Hb1Ac, diastolic blood pressure, HDL-cholesterol, and ALT, and improved consumption of total energy, fish, and legumes. Participants in the MD-HMF group improved waist circumference. Conclusions: Customized hypocaloric dietary and enhanced physical activity interventions may be useful to ameliorate NAFLD.
Autores:
Lorenzo, P. M.; Sajoux, I.; Izquierdo, A. G.; et al.
Revista:
CLINICAL NUTRITION
ISSN:
0261-5614
Año:
2022
Vol.:
41
N°:
7
Págs.:
1566 - 1577
Background & aim: Inflammation and oxidative stress are the most probable mechanistic link between obesity and its co-diseases with cancer among them. The aim of this study was to evaluate whether the nutritional ketosis and weight loss induced by a very-low-calorie ketogenic diet (VLCKD) modulates the inflammatory and oxidative stress profile, compared with a standard, balanced hypocaloric diet (LCD) or bariatric surgery (BS) in patients with obesity.
Methods: The study was performed in 79 patients with overweight or obesity and 32 normal-weight volunteers as the control group. Patients with obesity underwent a weight reduction therapy based on VLCKD, LCD or BS. The quantification of the circulating levels of a multiplexing test of cytokines and carcinogenesis/aging biomarkers, as well as of lipid peroxides and total antioxidant power, was carried out.
Results: First, we observed that pro-inflammatory cytokines increase, while anti-inflammatory cytokines decrease under excessive body weight. Relevantly, when patients underwent weight loss strategies, it was shown that energy-restricted and surgical strategies of weight loss induced changes in circulating cytokine and lipid peroxides. This effect was more notable in patients following the VLCKD than the LCD or BS and it was observed mainly in the ketosis phase of the intervention. Particularly, IL-11, IL-12, IL-2, INF-gamma, INF-beta, Pentraxin-3 or MMP1 changed after VLCKD. Whereas, APRIL, TWEAK, osteocalcin and IL-28A increased after BS.
Conclusion: As far as we know, this is the first study that evaluate the time-course of cytokines and oxidative stress markers after a VLCKD as compared with a standard LCD and BS. The observed results support the immunomodulatory effect of nutritional ketosis induced by a VLCKD synergistically with weight loss as a strategy to improve innate-immunity and to prevent infections and carcinogenesis in patients with obesity.
Autores:
Martínez-Pérez, C.; Daimiel, L. (Autor de correspondencia); Climent-Mainar, C.; et al.
Revista:
INTERNATIONAL JOURNAL OF BEHAVIORAL NUTRITION AND PHYSICAL ACTIVITY
ISSN:
1479-5868
Año:
2022
Vol.:
19
N°:
1
Págs.:
6
Background: Recent lifestyle changes include increased consumption of highly processed foods (HPF), which has been associated with an increased risk of non-communicable diseases (NCDs). However, nutritional information relies on the estimation of HPF consumption from food-frequency questionnaires (FFQ) that are not explicitly developed for this purpose. We aimed to develop a short screening questionnaire of HPF consumption (sQ-HPF) that integrates criteria from the existing food classification systems. Methods: Data from 4400 participants (48.1% female and 51.9% male, 64.9 +/- 4.9 years) of the Spanish PREDIMED-Plus ("PREvention with MEDiterranean DIet") trial were used for this analysis. Items from the FFQ were classified according to four main food processing-based classification systems (NOVA, IARC, IFIC and UNC). Participants were classified into tertiles of HPF consumption according to each system. Using binomial logistic regression, food groups associated with agreement in the highest tertile for at least two classification systems were chosen as items for the questionnaire. ROC analysis was used to determine cut-off points for the frequency of consumption of each item, from which a score was calculated. Internal consistency of the questionnaire was assessed through exploratory factor analysis (EFA) and Cronbach's analysis, and agreement with the four classifications was assessed with weighted kappa coefficients. Results: Regression analysis identified 14 food groups (items) associated with high HPF consumption for at least two classification systems. EFA showed that items were representative contributors of a single underlying factor, the "HPF dietary pattern" (factor loadings around 0.2). We constructed a questionnaire asking about the frequency of consumption of those items. The threshold frequency of consumption was selected using ROC analysis. Comparison of the four classification systems and the sQ-HPF showed a fair to high agreement. Significant changes in lifestyle characteristics were detected across tertiles of the sQ-HPF score. Longitudinal changes in HPF consumption were also detected by the sQ-HPF, concordantly with existing classification systems. Conclusions: We developed a practical tool to measure HPF consumption, the sQ-HPF. This may be a valuable instrument to study its relationship with NCDs.
Revista:
NUTRIENTS
ISSN:
2072-6643
Año:
2022
Vol.:
14
N°:
23
Págs.:
5160
Neck circumference (NC) and its relationship to height (NHtR) and weight (NWtR) appear to be good candidates for the non-invasive management of non-alcoholic fatty liver disease (NAFLD). This study aimed to evaluate the ability of routine variables to assess and manage NAFLD in 98 obese subjects with NAFLD included in a 2-year nutritional intervention program. Different measurements were performed at baseline, 6, 12 and 24 months. The nutritional intervention significantly improved the anthropometric, metabolic and imaging variables. NC was significantly associated with the steatosis degree at baseline (r = 0.29), 6 m (r = 0.22), 12 m (r = 0.25), and 24 m (r = 0.39) (all p < 0.05). NC was also significantly associated with visceral adipose tissue at all the study time-points (basal r = 0.78; 6 m r = 0.65; 12 m r = 0.71; 24 m r = 0.77; all p < 0.05). NC and neck ratios combined with ALT levels and HOMA-IR showed a good prediction ability for hepatic fat content and hepatic steatosis (at all time-points) in a ROC analysis. The model improved when weight loss was included in the panel (NC-ROC: 0.982 for steatosis degree). NC and ratios combined with ALT and HOMA-IR showed a good prediction ability for hepatic fat during the intervention. Thus, their application in clinical practice could improve the prevention and management of NAFLD.
Autores:
López-González, L.; Becerra-Tomás, N.; Babio, N. (Autor de correspondencia); et al.
Revista:
EUROPEAN JOURNAL OF CLINICAL NUTRITION
ISSN:
0954-3007
Año:
2022
Vol.:
76
N°:
10
Págs.:
1393 - 1402
Background and aims Previous studies have shown beneficial associations between fruit and vegetable (FV) consumption and cardiometabolic risk factors. However, variety in FV, which may play an important role on cardiovascular health due to the different nutrient and phytochemical content among the different groups and subgroups of FV has been poorly investigated. We longitudinally investigated associations between 1-year changes in variety and quantity of FV and concurrent changes in cardiometabolic risk factors in elderly subjects with overweight/obesity and metabolic syndrome. Methods a one-year data longitudinal analysis of 6647 PREDIMED-plus study participants (48% women) was conducted. Data were collected at baseline, six months and 1-year of follow-up. Variety and quantity of FV were estimated using a food frequency questionnaire and continuous scores for variety were created based on items/month of FV. Linear mixed-models adjusted for potential confounders were performed to estimate associations (beta-coefficients and 95% confidence interval) between 1-year changes in FV variety and/or quantity and concurrent changes in cardiometabolic risk factors. Results Two points increment in the FV variety score over one year was associated with a concurrent decrease in glucose (-0.33 mg/dL (0.58, -0.07)), body weight (-0.07 kg (-0.13, -0.02)) and waist circumference (WC) (-0.08 cm (-0.16, -10.01)). An increment of 100 g/d of FV over one year was associated with a concurrent decrease in triglycerides (-0.50 mg/dL (-0.93, -0.08)), glucose (-0.21 mg/dL (-0.32, -0.11)), body weight (-0.11 kg (-0.15, -0.07)) and WC (-0.10 cm (-0.14, -0.06)) over 1-year. Changes in FV consumption which led to higher quantity and variety over one year were associated with downward changes in glucose (-1.26 mg/dL (-2.09, -0.43)), body weight (-0.40 kg (-0.58, -0.23)) and WC (-0.50 cm (-0.73, -0.28)). Conclusion Greater variety, in combination with higher quantity of FV was significantly associated with a decrease in several cardiometabolic risk factors among elderly subjects at high cardiovascular risk.
Revista:
REVISTA ESPAÑOLA DE CARDIOLOGIA
ISSN:
0300-8932
Año:
2022
Vol.:
75
N°:
5
Págs.:
401 - 411
Introduction and objectives: Quantification of cardiovascular risk has been based on scores such as Framingham, Framingham-REGICOR, SCORE or Life's Simple 7 (LS7). In vitro, animal, and randomized clinical studies have shown that polyphenols may provide benefits to the vascular system and reduce the inflammatory response. However, some clinical-epidemiological studies have yielded inconsistent results. Our aim was to assess the possible association between intake of the various polyphenol classes and established cardiovascular scores.
Methods: This cross-sectional analysis involved 6633 PREDIMED-Plus study participants. Food polyphenol content was estimated by a semi-quantitative food frequency questionnaire, adjusted for total energy intake according to the residual method. The association between polyphenol intake and cardiovascular risk was tested using linear regression analyses.
Results: Total polyphenol and flavonoid intake were directly and significantly associated only with the LS7 scale. Intake of lignans was directly and significantly associated with SCORE and LS7 scales, stilbene intake with SCORE, and phenolic acid intake with Framingham and Framingham-REGICOR scores. Other polyphenol classes were associated in a protective and significant manner in Framingham, SCORE and LS7 scores. In women, intake of all the polyphenol classes, except phenolic acids, showed a protective trend in the results of the Framingham, Framingham-REGICOR scores and LS7 scale.
Conclusions: An inverse association was found between consumption of the 'other polyphenols' class and, especially among women, with estimated cardiovascular risk. The results were similar to those of Framingham, Framingham-REGICOR and LS7 (after eliminating the diet component) and differed from those of SCORE, but the predictors included were limited in the latter case.
Revista:
NUTRITION
ISSN:
0899-9007
Año:
2022
Vol.:
103 - 104
Págs.:
111841
Objectives: The number of people aged >= 60 y is increasing worldwide, so establishing a relationship between lifestyle and health-associated factors, such as gut microbiota in an older population, is important. This study aimed to characterize the gut microbiota of a presenior population, and analyze the association between some bacteria and quality of life with the Short Form (SF) 36 questionnaire. Methods: Participants were adult men and women ages 50 to 80 y (n = 74). In addition to the SF-36 questionnaire, fecal samples were collected in cryotubes, and 16S RNA gene sequencing was performed to characterize microbial features. Participants were classified into two groups according to SF-36 punctuation. Linear and logistic regression models were performed to assess the possible association between any bacterial bowl and SF-36 score. Receiver operating characteristics curves were fitted to define the relative diagnostic strength of different bacterial taxa for the correct determination of quality of life. Results: A positive relationship was established between SF-36 score and Actinobacteria (P = 0.0310; R = 0.2510) compared with Peptostreptococcaceae (P = 0.0259; R = -0.2589), which increased with decreasing quality of life. Logistic regressions models and receiver operating characteristics curves showed that the relative abundance of Actinobacteria and Peptostreptococcaceae may be useful to predict quality of life in a presenior population (area under the curve: 0.71). Conclusions: Quality of life may be associated with the relative abundance of certain bacteria, especially Actinobacteria and Peptostreptococcaceae, which may have a specific effect on certain markers and health care, which is important to improve quality of life in older populations. (c) 2022 The Author(s). Published by Elsevier Inc. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Autores:
Oncina-Canovas, A.; Vioque, J. (Autor de correspondencia); González-Palacios, S.; et al.
Revista:
EUROPEAN JOURNAL OF NUTRITION
ISSN:
1436-6207
Año:
2022
Vol.:
61
N°:
1
Págs.:
357 - 372
Purpose We explored the cross-sectional association between the adherence to three different provegetarian (PVG) food patterns defined as general (gPVG), healthful (hPVG) and unhealthful (uPVG), and the cardiometabolic risk in adults with metabolic syndrome (MetS) of the PREDIMED-Plus randomized intervention study. Methods We performed a cross-sectional analysis of baseline data from 6439 participants of the PREDIMED-Plus randomized intervention study. The gPVG food pattern was built by positively scoring plant foods (vegetables/fruits/legumes/grains/potatoes/nuts/olive oil) and negatively scoring, animal foods (meat and meat products/animal fats/eggs/fish and seafood/dairy products). The hPVG and uPVG were generated from the gPVG by adding four new food groups (tea and coffee/fruit juices/sugar-sweetened beverages/sweets and desserts), splitting grains and potatoes and scoring them differently. Multivariable-adjusted robust linear regression using MM-type estimator was used to assess the association between PVG food patterns and the standardized Metabolic Syndrome score (MetS z-score), a composed index that has been previously used to ascertain the cardiometabolic risk, adjusting for potential confounders. Results A higher adherence to the gPVG and hPVG was associated with lower cardiometabolic risk in multivariable models. The regression coefficients for 5th vs. 1st quintile were - 0.16 (95% CI: - 0.33 to 0.01) for gPVG (p trend: 0.015), and - 0.23 (95% CI: - 0.41 to - 0.05) for hPVG (p trend: 0.016). In contrast, a higher adherence to the uPVG was associated with higher cardiometabolic risk, 0.21 (95% CI: 0.04 to 0.38) (p trend: 0.019). Conclusion Higher adherence to gPVG and hPVG food patterns was generally associated with lower cardiovascular risk, whereas higher adherence to uPVG was associated to higher cardiovascular risk.
Autores:
Valle-Hita, C.; Díaz-López, A.; Becerra-Tomás, N. (Autor de correspondencia); et al.
Revista:
EUROPEAN JOURNAL OF NUTRITION
ISSN:
1436-6207
Año:
2022
Vol.:
61
N°:
6
Págs.:
3095 - 3108
Purpose To assess the association between three different a priori dietary patterns adherence (17-item energy reduced-Mediterranean Diet (MedDiet), Trichopoulou-MedDiet and Dietary Approach to Stop Hypertension (DASH)), as well as the Protein Diet Score and kidney function decline after one year of follow-up in elderly individuals with overweight/obesity and metabolic syndrome (MetS). Methods We prospectively analyzed 5675 participants (55-75 years) from the PREDIMED-Plus study. At baseline and at one year, we evaluated the creatinine-based estimated glomerular filtration rate (eGFR) and food-frequency questionnaires-derived dietary scores. Associations between four categories (decrease/maintenance and tertiles of increase) of each dietary pattern and changes in eGFR (ml/min/1.73m(2)) or >= 10% eGFR decline were assessed by fitting multivariable linear or logistic regression models, as appropriate. Results Participants in the highest tertile of increase in 17-item erMedDiet Score showed higher upward changes in eGFR (beta: 1.87 ml/min/1.73m(2); 95% CI: 1.00-2.73) and had lower odds of >= 10% eGFR decline (OR: 0.62; 95% CI: 0.47-0.82) compared to individuals in the decrease/maintenance category, while Trichopoulou-MedDiet and DASH Scores were not associated with any renal outcomes. Those in the highest tertile of increase in Protein Diet Score had greater downward changes in eGFR (beta: - 0.87 ml/min/1.73m(2); 95% CI: - 1.73 to - 0.01) and 32% higher odds of eGFR decline (OR: 1.32; 95% CI: 1.00-1.75). Conclusions Among elderly individuals with overweight/obesity and MetS, only higher upward change in the 17-item erMedDiet score adherence was associated with better kidney function after one year. However, increasing Protein Diet Score appeared to have an adverse impact on kidney health. Trial Registration Number: ISRCTN89898870 (Data of registration: 2014).
Autores:
Martínez-Urbistondo, D. (Autor de correspondencia); San Cristóbal, R.; Villares, P.; et al.
Revista:
FRONTIERS IN ENDOCRINOLOGY
ISSN:
1664-2392
Año:
2022
Vol.:
13
Págs.:
868795
ObjectiveTo evaluate the effect of Non-alcoholic fatty liver disease (NAFLD) status in the impact of lifestyle over Health-related quality of life (HRQoL) in patients with metabolic syndrome (MetS). MethodsBaseline and 1 year follow up data from the PREDIMED-plus cohort (men and women, 55-75 years old with overweight/obesity and MetS) were studied. Adherence to an energy-restricted Mediterranean Diet (er-MeDiet) and Physical Activity (PA) were assessed with a validated screeners. Hepatic steatosis index (HSI) was implemented to evaluate NAFLD while the SF-36 questionnaire provided HRQoL evaluation. Statistical analyses were performed to evaluate the influence of baseline NAFLD on HRQoL as affected by lifestyle during 1 year of follow up. ResultsData from 5205 patients with mean age of 65 years and a 48% of female participants. Adjusted linear multivariate mixed regression models showed that patients with lower probability of NAFLD (HSI < 36 points) were more responsive to er-MeDiet (beta 0.64 vs beta 0.05 per er-MeDiet adherence point, p< 0.01) and PA (beta 0.05 vs beta 0.01 per MET-h/week, p = 0.001) than those with high probability for NAFLD in terms Physical SF-36 summary in the 1 year follow up. 10 points of er-MeDiet adherence and 50 MET-h/week were thresholds for a beneficial effect of lifestyle on HRQoL physical domain in patients with lower probability of NAFLD. ConclusionThe evaluation of NAFLD by the HSI index in patients with MetS might identify subjects with different prospective sensitivity to lifestyle changes in terms of physical HRQoL (http://www.isrctn.com/ISRCTN89898870).
Autores:
López, M.; Ríos, A.; Romaguera, D. (Autor de correspondencia); et al.
Revista:
REVISTA ESPAÑOLA DE CARDIOLOGIA
ISSN:
0300-8932
Año:
2021
Vol.:
74
N°:
10
Págs.:
846 - 853
Introduction and objectives: The ankle-brachial index (ABI) is an indicator of peripheral artery disease (PAD). The aim of this study was to assess the association between PAD, measured with the ABI, and cognitive function in persons with overweight or obesity and metabolic syndrome.
Methods: Cross-sectional study conducted with baseline data from the PREDIMED-Plus study, which included 4898 participants (after exclusion of those without ABI measurements) aged between 55 and 75 years, and with overweight or obesity and metabolic syndrome. At the baseline assessment, we measured the ABI with a standardized protocol and assessed the presence of other cardiovascular risk factors (eg, diabetes, dyslipidemia, hypertension). Cognitive function was evaluated using several tests validated for the Spanish population (mini-mental state examination [MMSE], phonological and semantic verbal fluency test, WAIS-III working memory index [WMI], parts A and B of the trail making test (TMT), and clock drawing test). Generalized linear models were used to assess the association between the ABI and cognitive function.
Results: Among the participants, 3.4% had PAD defined as ABI ¿ 0.9, and 3.3% had arterial calcification defined as ABI ¿ 1.4. PAD was associated with age, systolic blood pressure and obesity indicators, while arterial calcification was also associated with obesity and diabetes. No significant associations were observed between cognitive function and ABI or PAD.
Conclusions: In our sample, the presence of PAD increased with age, blood pressure, and obesity. No significant association was observed between ABI, PAD, or cognitive function.
Autores:
Paz-Graniel, I.; Becerra-Tomás, N.; Babio, N. (Autor de correspondencia); et al.
Revista:
CLINICAL NUTRITION
ISSN:
0261-5614
Año:
2021
Vol.:
40
N°:
6
Págs.:
3982 - 3991
Background & aims: The association between drinking water consumption and adiposity has been poorly explored. Therefore, we aimed to analyse the associations between the frequency of drinking water consumption and body weight and waist circumference changes in an elderly Mediterranean cohort. Methods: A total of 1832 elderly participants (aged 55-75 years) with metabolic syndrome from the PREDIMED-Plus study with baseline data on drinking water and other beverages assessed by a validated 32-item Spanish fluid-intake questionnaire and with data on body weight (BW) and waist circumference (WC) at 1-year and 2-year were included in these prospective analyses. Multivariable linear regression models were fitted to assess the b-coefficients and 95% confidence interval (CI) for BW and WC changes in terms of categories of baseline drinking water consumption (tap water and bottled water). The theoretical effect on BW and WC of replacing several beverages with drinking water was assessed using mathematical models. Results: The baseline frequency of drinking water consumption was inversely associated with 1-year and 2 year changes in BW. b-coefficients (95%CI) across categories of water consumption (<2.5, 2.5 to <5, 5 to < 7.5, >7.5 servings/d) expressed in % of weight changes at 2 years of follow-up were 0.0,-0.80 (-1.48,-0.12),-1.36 (-2.18,-0.54), and-1.97 (-3.09,-0.86), respectively. Individuals in the two highest categories of drinking water consumption (5 to < 7, and >7.5 servings/d) also showed a higher decrease in WC (expressed as % of change) after 2 years of follow-up:-1.11 (-1.96,-0.25) and-1.45 (-2.66,-0.24) compared to the reference intake (<2.5 servings/day), after adjustment for potential confounding factors. The theoretical replacement of soups, beers, spirits, hot beverages, dairy beverages, and other beverages group with drinking water was associated with greater reductions in BW at one-and two-years of follow-up. Conclusions: Drinking water consumption was inversely associated with 2-year adiposity changes in an elderly Mediterranean cohort at high cardiovascular risk. Our results also suggest that the consumption of drinking water instead of energy-containing beverages is associated with lower weight gain. The trial registration: ISRCTN89898870. (C) 2021 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Revista:
FOOD & FUNCTION
ISSN:
2042-6496
Año:
2021
Vol.:
12
N°:
14
Págs.:
6540 - 6548
Introduction: Postprandial hyperglycemia is a risk factor for type 2 diabetes. Insulin resistance (IR) might affect metabolic responses in non-fasting states. Dietary intake and food composition influence postprandial glucose homeostasis. The aims of this study were to evaluate the effects of different test foods varying in the macronutrient composition on postprandial glycemic responses and whether these outcomes are conditioned by the basal glycemic status in senior subjects. Methods: In a randomized, controlled crossover design, thirty-four adults consumed a test food, a high protein product (n = 19) or a high carbohydrate (CHO) product (n = 15), using the oral glucose tolerance test (OGTT) as a reference. Blood glucose and insulin were measured at fasting and at 15, 30, 45, 60, 90, and 120 min after starting the food intake. For each type of food, the incremental area under the curve (iAUC) for glucose and insulin was calculated. IR was measured using the Homeostatic Model Assessment of IR (HOMA-IR). Results: Consumption of a high protein product significantly lowered the peak and Delta blood glucose concentrations compared to the high CHO product (p < 0.001). Concerning the insulin response, no significant differences between both foods were observed. Fasting glucose was positively correlated with the glucose iAUC only for the high protein product. Positive associations of both fasting insulin and HOMA-IR with the insulin iAUC for all the cases were observed. Linear regression models showed significant positive associations between the glucose iAUC and fasting glucose after adjusting for age and sex. Regarding the insulin iAUC, positive associations were found with fasting insulin and HOMA-IR. Regression models also evidenced that both food test consumptions were able to decrease the glucose and insulin iAUC values when compared with the OGTT product. Conclusion: Our research found that not only is the nutritional composition of foods important, but also the baseline glycemic state of individuals when assessing glycemic index estimations and addressing precision nutritional strategies to prevent and treat IR-associated disturbances.
Revista:
NUTRITION
ISSN:
0899-9007
Objectives: This study aimed to analyze the expression pattern of microRNAs (miRNAs) in white blood cells (WBC) in response to two different energy-restricted diets in patients with metabolic syndrome in the Metabolic Syndrome Reduction in Navarra-Spain (RESMENA) study. Methods: A subsample of 24 patients with metabolic syndrome features from the randomized, prospective, parallel-designed RESMENA study was selected for this analysis. The RESMENA study consisted of two dietary strategies with a 30% energy restriction: RESMENA (high meal frequency and high adherence to the Mediterranean diet) and control (based on recommendations from the American Heart Association) groups. Anthropometric and biochemical parameters as well as miRNA expression in WBC by miRNA-seq were measured before and after 8 wk of intervention. Results: A total of 49 miRNAs were differentially expressed after 8 wk of dietary intervention, 35 from the American Heart Association and 14 from the RESMENA diet. MiR-410, miR-637, miR-214, and miR-190 evidenced the most significant expression changes due to the weight loss intervention (P < 0.01). MiR-2115, -587, and -96 showed differential expressions between the two dietary strategies after 8 wk of intervention. The expression of several miRNAs was significantly associYated with anthropometric and biochemical parameters: miR-410 levels positively correlated with circulating leptin and body mass index (BMI), and miR-587 expression was associated with vascular cell adhesion protein 1. Conclusions: Different dietary patterns induce specific changes in miRNA expression in WBC. The associations of specific miRNAs with biochemical and anthropometric parameters suggest that these miRNAs might be directly or indirectly involved in the effects of weight-loss diets with different foods and macronutrient composition, and participate in the regulation of metabolic diseases. (C) 2020 Elsevier Inc. All rights reserved.
Revista:
EUROPEAN JOURNAL OF NUTRITION
ISSN:
1436-6207
Año:
2021
Vol.:
60
N°:
4
Págs.:
1769 - 1780
Purpose Identification of dietary factors involved in the development and progression of nonalcoholic fatty liver disease (NAFLD) is relevant to the current epidemics of the disease. Dietary amino acids appear to play a key role in the onset and progression of NAFLD. The aim of this study was to analyze potential associations between specific dietary amino acids and variables related to glucose metabolism and hepatic status in adults with overweight/obesity and NAFLD. Methods One hundred and twelve individuals from the Fatty Liver in Obesity (FLiO) study were evaluated. Liver assessment was carried out by ultrasonography, magnetic resonance imaging and analysis of biochemical parameters. Dietary amino acid intake (aromatic amino acids (AAA); branched-chain amino acids (BCAA); sulfur amino acids (SAA)) was estimated by means of a validated 137-item food frequency questionnaire. Results Higher consumption of these amino acids was associated with worse hepatic health. Multiple adjusted regression models confirmed that dietary AAA, BCAA and SAA were positively associated with liver fat content. AAA and BCAA were positively associated with liver iron concentration. Regarding ferritin levels, a positive association was found with BCAA. Dietary intake of these amino acids was positively correlated with glucose metabolism (glycated hemoglobin, triglyceride and glucose index) although the significance disappeared when potential confounders were included in the model.
Revista:
EUROPEAN JOURNAL OF NUTRITION
ISSN:
1436-6207
Año:
2021
Vol.:
60
N°:
6
Págs.:
3043 - 3057
Purpose Non-alcoholic fatty liver disease (NAFLD) is worldwide recognized as the most common cause of chronic liver disease. Current NAFLD clinical management relies on lifestyle change, nevertheless, the importance of the genetic make-up on liver damage and the possible interactions with diet are still poorly understood. The aim of the study was to evaluate the influence of the SH2B1 rs7359397 genetic variant on changes in body composition, metabolic status and liver health after 6-month energy-restricted treatment in overweight/obese subjects with NAFLD. In addition, gene-treatment interactions over the course of the intervention were examined. Methods The SH2B1 genetic variant was genotyped in 86 overweight/obese subjects with NAFLD from the FLiO study (Fatty Liver in Obesity study). Subjects were metabolically evaluated at baseline and at 6-months. Liver assessment included ultrasonography, Magnetic Resonance Imaging, elastography, a lipidomic test (OWL(R)-test) and specific blood liver biomarkers. Additionally, body composition, general biochemical markers and dietary intake were determined. Results Both genotypes significantly improved their body composition, general metabolic status and liver health after following an energy-restricted strategy. Liver imaging techniques showed a greater decrease in liver fat content (- 44.3%, p < 0.001) and in serum ferritin levels (p < 0.001) in the carriers of the T allele after the intervention. Moreover, lipidomic analysis, revealed a higher improvement in liver status when comparing risk vs. no-risk genotype (p = 0.006 vs. p = 0.926, respectively). Gene-treatment interactions showed an increase in fiber intake and omega-3 fatty acid in risk genotype (p interaction = 0.056 and p interaction = 0.053, respectively), while a significant increase in MedDiet score was observed in both genotype groups (p = 0.020). Moreover, no-risk genotype presented a relevant decrease in hepatic iron as well as in MUFA intake (p = 0.047 and p = 0.034, respectively). Conclusion Subjects carrying the T allele of the rs7359397 polymorphism may benefit more in terms of hepatic health and liver status when prescribed an energy-restricted treatment, where a Mediterranean dietary pattern rich in fiber and other components such as omega-3 fatty acids might boost the benefits.
Autores:
Diaz-Lopez, A.; Becerra-Tomas, N.; Ruiz, V.; et al.
Revista:
AMERICAN JOURNAL OF NEPHROLOGY
ISSN:
0250-8095
Año:
2021
Vol.:
52
N°:
1
Págs.:
45 - 58
Introduction: Large randomized trials testing the effect of a multifactorial weight-loss lifestyle intervention including Mediterranean diet (MedDiet) on renal function are lacking. Here, we evaluated the 1-year efficacy of an intensive weight-loss intervention with an energy-reduced MedDiet (erMedDiet) plus increased physical activity (PA) on renal function. Methods: Randomized controlled "PREvencion con DIeta MEDiterranea-Plus" (PREDIMED-Plus) trial is conducted in 23 Spanish centers comprising 208 primary care clinics. Overweight/obese (n = 6,719) adults aged 55-75 years with metabolic syndrome were randomly assigned (1:1) to an intensive weight-loss lifestyle intervention with an erMedDiet, PA promotion, and behavioral support (intervention) or usual-care advice to adhere to an energy-unrestricted MedDiet (control) between September 2013 and December 2016. The primary outcome was 1-year change in estimated glomerular filtration rate (eGFR). Secondary outcomes were changes in urine albumin-to-creatinine ratio (UACR), incidence of moderately/severely impaired eGFR (<60 mL/min/1.73 m(2)) and micro- to macroalbuminuria (UACR >= 30 mg/g), and reversion of moderately (45 to <60 mL/min/1.73 m(2)) to mildly impaired GFR (60 to <90 mL/min/1.73 m(2)) or micro- to macroalbuminuria. Results: After 1 year, eGFR declined by 0.66 and 1.25 mL/min/1.73 m(2) in the intervention and control groups, respectively (mean difference, 0.58 mL/min/1.73 m(2); 95% CI: 0.15-1.02). There were no between-group differences in mean UACR or micro- to macroalbuminuria changes. Moderately/severely impaired eGFR incidence and reversion of moderately to mildly impaired GFR were 40% lower (HR 0.60; 0.44-0.82) and 92% higher (HR 1.92; 1.35-2.73), respectively, in the intervention group. Conclusions: The PREDIMED-Plus lifestyle intervention approach may preserve renal function and delay CKD progression in overweight/obese adults.
Revista:
LIVER INTERNATIONAL
ISSN:
1478-3223
Año:
2021
Vol.:
41
N°:
7
Págs.:
1532 - 1544
Background and objectives Nonalcoholic fatty liver disease (NAFLD) management is focused on lifestyle modifications, but long-term maintenance is a challenge for many individuals. This study aimed to evaluate the long-term effects of two personalized energy-restricted dietary strategies on weight loss, metabolic and hepatic outcomes in overweight/obese subjects with NAFLD. Methods Ninety-eight subjects from the Fatty Liver in Obesity (FLiO) study (NCT03183193) were randomly assigned to the American Heart Association (AHA) or the FLiO dietary group in a 2-year controlled trial. Anthropometry, body composition (DXA), biochemical parameters and hepatic status (ultrasonography, Magnetic Resonance Imaging, and elastography) were assessed at baseline, 6, 12 and 24 months. Results Both the AHA and FLiO diets significantly reduced body weight at 6 (-9.7% vs -10.1%), 12 (-6.7% vs -9.6%), and 24 months (-4.8% vs -7.6%) with significant improvements in body composition, biochemical and liver determinations throughout the intervention. At the end of the follow-up, the FLiO group showed a greater decrease in ALT, liver stiffness and Fatty Liver Index, among others, compared to AHA group, although these differences were attenuated when the analyses were adjusted by weight loss percentage. The FLiO group also showed a greater increase in adiponectin compared to AHA group. Conclusions The AHA and FLiO diets were able to improve body weight and body composition, as well as metabolic and hepatic status of participants with overweight/obesity and NAFLD within a 2-year follow-up. These findings show that both strategies are suitable alternatives for NAFLD management. However, the FLiO strategy may provide more persistent benefits in metabolic and hepatic parameters.
Autores:
Abbate, M.; Mascaro, C. M. ; Montemayor, S.; et al.
Revista:
NUTRIENTS
ISSN:
2072-6643
Año:
2021
Vol.:
13
N°:
2
Págs.:
629
To assess the efficacy of three lifestyle interventions on the reduction of liver fat content and metabolic syndrome (MetS), and whether such reductions would influence renal outcomes, we conducted a randomized controlled trial on 128 participants with MetS and non-alcoholic fatty liver disease (NAFLD), as well as available data on estimated glomerular filtration rate (eGFR) and urinary albumin-to-creatine ratio (UACR). Patients were randomized in 1:1:1 ratio to either Conventional Diet, Mediterranean diet (MD)-high meal frequency, and MD-physical activity groups. Each intervention aimed at reducing caloric intake by 25%-30% of baseline intake and increase energy expenditure by 400 kcal/70 kg. Patients attended regular visits and were followed-up for 6 months. Increased albuminuria was present in 13.3% of patients, while 32.8% showed hyperfiltration. UACR reduction was associated with higher levels of UACR at baseline but not with changes in liver fat. eGFR decreased in patients presenting hyperfiltration at baseline and was associated with reduction in liver fat and insulin resistance, as well as with increase in energy expenditure (R-2 = 0.248, p = 0.006). No significant differences were observed between the three treatment groups. In patients with NAFLD and MetS, energy expenditure significantly reduced hepatic fat accumulation and insulin resistance, which reduced glomerular hyperfiltration. Increased albuminuria was reduced, but it was not associated with reduced liver fat.
Revista:
ARCHIVES OF MEDICAL SCIENCE
ISSN:
1734-1922
Año:
2021
Vol.:
18
N°:
1
Págs.:
36 - 44
Introduction: Previous studies have hypothesized fibroblast growth factor 21 (FGF-21) as a potential biomarker of the inflammation associated with liver diseases, which is also receiving considerable attention for its potential application concerning the management of obesity and co-morbidities. This study aimed to analyze the response of FGF-21 after a weight loss intervention and the relationships with other putative inflammatory liver biomarkers. Material and methods: Sixty-six obese participants from the RESMENA study were evaluated at baseline and following a 6-month energy restriction treatment. Anthropometric, body composition by DXA, routine laboratory measurements, which included transaminases and g-glutamyl transferase (GGT) were analyzed by standardized methods. Moreover, FGF-21, M30 fragment (M30) and plasminogen activator inhibitor-1 (PAI-I) were analyzed as recognized liver inflammatory related biomarkers with specific ELISA kits. Results: Most measurements related to hepatic damage, inflammation and adiposity status improved at the end of the 6-month nutritional intervention. In addition, AFGF-21 shifts showed statistical relationships with changes in AM30, AGGT and APAI. The reduction of M30 showed significant associations with changes in transaminases. Furthermore, PAI-I changes were associated with AM30 and AGGT regardless of weight loss. A linear regression model was set up to assess the influence of APAI-I and AM30 on the variability of AFGF-21 (23.8%) adjusted by weight loss. Conclusions: These results demonstrated interactions of some liver inflammatory mediators, specifically M30 and PAI-I with FGF-21. Thus, more investigation about FGF-21 is required given that this protein could be a biomarker of the obesity-inflammation-liver process.
Autores:
Gómez-Martínez, C.; Babio, N.; Julvez, J.; et al.
Revista:
FRONTIERS IN ENDOCRINOLOGY
ISSN:
1664-2392
Año:
2021
Vol.:
12
Págs.:
754347
Introduction Type 2 diabetes has been linked to greater cognitive decline, but other glycemic parameters such as prediabetes, diabetes control and treatment, and HOMA-IR and HbA(1c) diabetes-related biomarkers have shown inconsistent results. Furthermore, there is limited research assessing these relationships in short-term studies. Thus, we aimed to examine 2-year associations between baseline diabetes/glycemic status and changes in cognitive function in older participants at high risk of cardiovascular disease.</p> Methods We conducted a 2-year prospective cohort study (n=6,874) within the framework of the PREDIMED-Plus study. The participants (with overweight/obesity and metabolic syndrome; mean age 64.9 years; 48.5% women) completed a battery of 8 cognitive tests, and a global cognitive function Z-score (GCF) was estimated. At baseline, participants were categorized by diabetes status (no-diabetes, prediabetes, and <5 or >= 5-year diabetes duration), and also by diabetes control. Furthermore, insulin resistance (HOMA-IR) and glycated hemoglobin (HbA(1c)) levels were measured, and antidiabetic medications were recorded. Linear and logistic regression models, adjusted by potential confounders, were fitted to assess associations between glycemic status and changes in cognitive function.</p> Results Prediabetes status was unrelated to cognitive decline. However, compared to participants without diabetes, those with >= 5-year diabetes duration had greater reductions in GCF (beta=-0.11 (95%CI -0.16;-0.06)], as well as in processing speed and executive function measurements. Inverse associations were observed between baseline HOMA-IR and changes in GCF [beta=-0.0094 (95%CI -0.0164;-0.0023)], but also between HbA(1c) levels and changes in GCF [beta=-0.0085 (95%CI -0.0115, -0.0055)], the Mini-Mental State Examination, and other executive function tests. Poor diabetes control was inversely associated with phonologic fluency. The use of insulin treatment was inversely related to cognitive function as measured by the GCF [beta=-0.31 (95%CI -0.44, -0.18)], and other cognitive tests.</p> Conclusions Insulin resistance, diabetes status, longer diabetes duration, poor glycemic control, and insulin treatment were associated with worsening cognitive function changes in the short term in a population at high cardiovascular risk.</p>
Autores:
Marhuenda-Muñoz, M.; Rinaldi de Alvarenga, J. F.; Hernáez, A.; et al.
Revista:
ANTIOXIDANTS
ISSN:
2076-3921
Año:
2021
Vol.:
10
N°:
3
Págs.:
473
Carotenoids are pigments contained mainly in fruit and vegetables (F&V) that have beneficial effects on cardiometabolic health. Due to their lipophilic nature, co-ingestion of fat appears to increase their bioavailability via facilitating transfer to the aqueous micellar phase during digestion. However, the extent to which high fat intake may contribute to increased carotenoid plasma concentrations is still unclear. The objective was to examine the degree to which the consumption of different amounts of both carotenoid-rich foods and fats is associated with plasma carotenoid concentrations within a Mediterranean lifestyle context (subsample from the PREDIMED-Plus study baseline) where consumption of F&V and fat is high. The study population was categorized into four groups according to their self-reported consumption of F&V and fat. Carotenoids were extracted from plasma samples and analyzed by HPLC-UV-VIS-QqQ-MS/MS. Carotenoid systemic concentrations were greater in high consumers of F&V than in low consumers of these foods (+3.04 mu mol/L (95% CI: 0.90, 5.17), p-value = 0.005), but circulating concentrations seemed to decrease when total fat intake was very high (-2.69 mu mol/L (-5.54; 0.16), p-value = 0.064). High consumption of F&V is associated with greater systemic levels of total carotenoids, in particular when fat intake is low-to-moderate rather than very high.
Autores:
Glenn, A. J.; Hernández-Alonso, P.; Kendall, C. W. C.; et al.
Revista:
CLINICAL NUTRITION
ISSN:
0261-5614
Año:
2021
Vol.:
40
N°:
5
Págs.:
2825 - 2836
Background & aims: The Portfolio and Dietary Approaches to Stop Hypertension (DASH) diets have been shown to lower cardiometabolic risk factors in randomized controlled trials (RCTs). However, the Portfolio diet has only been assessed in RCTs of hyperlipidemic patients. Therefore, to assess the Portfolio diet in a population with metabolic syndrome (MetS), we conducted a longitudinal analysis of one-year data of changes in the Portfolio and DASH diet scores and their association with cardiometabolic risk factors in Prevencion con Dieta Mediterranea (PREDIMED)-Plus trial. Methods: PREDIMED-Plus is an ongoing clinical trial (Trial registration: ISRCTN89898) conducted in Spain that includes 6874 older participants (mean age 65 y, 48% women) with overweight/obesity fulfilling at least three criteria for MetS. Data for this analysis were collected at baseline, six months and one year. Adherence to the Portfolio and DASH diet scores were derived from a validated 143-item food frequency questionnaire. We used linear mixed models to examine the associations of 1-SD increase and quartile changes in the diet scores with concomitant changes in cardiometabolic risk factors. Results: After adjusting for several potential confounders, a 1-SD increase in the Portfolio diet score was significantly associated with lower HbA1c (beta [95% CI]:- 0.02% [-0.02,-0.01], P < 0.001), fasting glucose (-0.47 mg/dL [-0.83,-0.11], P = 0.01), triglycerides (-1.29 mg/dL [-2.31,-0.28], P = 0.01), waist circumference (WC) (-0.51 cm [-0.59,-0.43], P < 0.001), and body mass index (BMI) (-0.17 kg/m(2) [-0.19,-0.15], P < 0.001). A 1-SD increase in the DASH diet score was significantly associated with lower HbA1c (-0.03% [-0.04,-0.02], P < 0.001), glucose (-0.84 mg/dL [-1.18,-0.51], P < 0.001), triglycerides (-3.38 mg/dL [-4.37,-2.38], P < 0.001), non-HDL-cholesterol (-0.47 mg/dL [-0.91,-0.04], P = 0.03), WC (-0.69 cm [-0.76,-0.60 cm], P < 0.001), BMI (-0.25 kg/m(2) [-0.28,-0.26 kg/m(2)], P < 0.001), systolic blood pressure (-0.57 mmHg [-0.81,-0.32 mmHg], P < 0.001), diastolic blood pressure (-0.15 mmHg [-0.29,-0.01 mmHg], P = 0.03), and with higher HDL-cholesterol (0.21 mg/dL [0.09, 0.34 mg/dL, P = 0.001]). Similar associations were seen when both diet scores were assessed as quartiles, comparing extreme categories of adherence. Conclusions: Among older adults at high cardiovascular risk with MetS, greater adherence to the Portfolio and DASH diets showed significant favourable prospective associations with several clinically relevant cardiometabolic risk factors. Both diets are likely beneficial for cardiometabolic risk reduction. (C) 2021 Elsevier Ltd and European Society for Clinical Nutrition and Metabolism. All rights reserved.
Autores:
Nishi, S. K. (Autor de correspondencia); Babio, N. (Autor de correspondencia); Gómez-Martínez, C.; et al.
Revista:
FRONTIERS IN AGING NEUROSCIENCE
ISSN:
1663-4365
Año:
2021
Vol.:
13
Págs.:
782067
Background and Aims: Plant-forward dietary patterns have been associated with cardiometabolic health benefits, which, in turn, have been related to cognitive performance with inconsistent findings. The objective of this study was to examine the relationship between baseline adherence to three a priori dietary patterns (Mediterranean, DASH, and MIND diets) with 2-year changes in cognitive performance in older adults with overweight or obesity and high cardiovascular disease risk.Methods: A prospective cohort analysis was conducted within the PREDIMED-Plus trial, involving 6,647 men and women aged 55-75 years with overweight or obesity and metabolic syndrome. Using a validated, semiquantitative 143-item food frequency questionnaire completed at baseline, the dietary pattern adherence scores were calculated. An extensive neuropsychological test battery was administered at baseline and 2-year follow-up. Multivariable-adjusted linear regression models were used to assess associations between 2-year changes in cognitive function z-scores across tertiles of baseline adherence to the a priori dietary patterns.Results: Adherence to the Mediterranean diet at baseline was associated with 2-year changes in the general cognitive screening Mini-Mental State Examination (MMSE, beta: 0.070; 95% CI: 0.014, 0.175, P-trend = 0.011), and two executive function-related assessments: the Trail Making Tests Part A (TMT-A, beta: -0.054; 95% CI: -0.110, - 0.002, P-trend = 0.047) and Part B (TMT-B, beta: -0.079; 95% CI: -0.134, -0.024, P-trend = 0.004). Adherence to the MIND diet was associated with the backward recall Digit Span Test assessment of working memory (DST-B, beta: 0.058; 95% CI: 0.002, 0.114, P-trend = 0.045). However, higher adherence to the DASH dietary pattern was not associated with better cognitive function over a period of 2 years.Conclusion: In older Spanish individuals with overweight or obesity and at high cardiovascular disease risk, higher baseline adherence to the Mediterranean dietary pattern may be associated with better cognitive performance than lower adherence over a period of 2 years.
Autores:
Abbate, M.; Mascaró, C. M.; Montemayor, S.; et al.
Revista:
JOURNAL OF CLINICAL MEDICINE
ISSN:
2077-0383
Año:
2021
Vol.:
10
N°:
8
Págs.:
1717
Background: Non-alcoholic fatty liver disease (NAFLD) is a risk factor for the development of chronic kidney disease (CKD), which is early marked by kidney glomerular hyperfiltration. However, the association of NAFLD with kidney glomerular hyperfiltration has not been tested so far in adults with metabolic syndrome (MetS). Aims: To assess the relationship between NAFLD and kidney glomerular hyperfiltration in adults with MetS. Methods: The study included 154 participants aged 40-60 years with MetS and NAFLD diagnosed by ultrasound. NAFLD was confirmed by MRI in 109 subjects. Participants underwent anthropometric measurements, and biochemistry testing. Estimated GFR (eGFR) was calculated using the CKD-Epidemiology Collaboration (CKD-EPI) formula; hyperfiltration was defined as eGFR >= 120 mL/min. Results: Participants with MRI-proven NAFLD showed a worse metabolic profile and higher levels of eGFR than those with no NAFLD. Presence of NAFLD and increased weight were independently associated with an increased probability of presenting hyperfiltration. Conclusions: The present study shows an association between kidney glomerular hyperfiltration and NAFLD in adults with MetS. Establishing an association between NAFLD and kidney glomerular hyperfiltration would help to earlier identify those patients at increased risk of CKD, who would benefit from an early intervention.
Autores:
Gallardo-Alfaro, L.; Bibiloni, M. D.; Bouzas, C.; et al.
Revista:
NUTRITION METABOLISM AND CARDIOVASCULAR DISEASES
ISSN:
0939-4753
Año:
2021
Vol.:
31
N°:
10
Págs.:
2870 - 2886
Background and aims: Modifiable lifestyle factors, such as physical activity (PA) and Mediterranean diet (MD), decrease metabolic syndrome (MetS). The aim was to assess 1-year changes of leisure-time physical activity (LTPA), sedentary behavior, and diet quality according to MetS severity in older population at high cardiovascular risk. Methods and results: Prospective analysis of 55-75-year-old 4359 overweight/obese participants with MetS (PREDIMED-Plus trial) categorized in tertiles according to 1-year changes of a validated MetS severity score (MetSSS). Anthropometrics, visceral adiposity index, triglycerides and glucose index, dietary nutrient intake, biochemical marker levels, dietary inflammatory index, and depression symptoms were measured. Diet quality was assessed by 17-item MD questionnaire. PAs were self-reported using the Minnesota-REGICOR Short Physical Activity Questionnaire and 30-s chair stand test. Sedentary behaviors were measured using the Spanish version of the Nurses' Health Study questionnaire. After 1-year follow-up, decreasing MetSSS was associated with an anti-inflammatory dietary pattern, high intake of vegetables, fruits, legumes, nuts, whole grain cereals, white fish, and bluefish and low intake of refined cereals, red and processed meat, cookies/sweets, and snacks/ready-to-eat-meals. It resulted in high intake of polyunsaturated fatty acids, omega-3 fatty acids, protein, fiber, vitamins B1, B6, B9, C, D, potassium, magnesium, and phosphorus and low glycemic index and saturated fatty acid, trans fatty acid, and carbohydrates intake. Regarding PA and sedentary behavior, decreasing MetSSS was associated with increased moderate-to-vigorous LTPA, chair stand test, and decreased sedentary and TV-viewing time. Conclusion: Decreasing MetSSS was associated with an anti-inflammatory dietary pattern, high LTPA, high MD adherence, low sedentary time, and low depression risk. 2021 The Italian Diabetes Society, the Italian Society for the Study of Atherosclerosis, the Italian Society of Human Nutrition and the Department of Clinical Medicine and Surgery, Federico II University.
Autores:
Vintró-Alcaraz, C.; Baenas, I.; Lozano-Madrid, M.; et al.
Revista:
EUROPEAN EATING DISORDERS REVIEW
ISSN:
1072-4133
Año:
2021
Vol.:
29
N°:
4
Págs.:
575 - 587
Goals To explore affective and cognitive status, later in life, in individuals with and without previous history of eating disorder (ED), and also its association with higher risk for metabolic syndrome (MetS) symptomatology. Methods A cross-sectional analysis of 6756 adults, aged 55-75 years with overweight/obesity and MetS participating in the Predimed-Plus study was conducted. Participants completed self-reported questionnaires to examine lifetime history of ED, according to DSM-5 criteria, and other psychopathological and neurocognitive factors. Anthropometric and metabolic measurements were also collected. Results Of the whole sample, 24 individuals (0.35%) reported a previous history of ED. In this subsample, there were more women and singles compared to their counterparts, but they also presented higher levels of depressive symptoms and higher cognitive impairment, but also higher body mass index (BMI) and severe obesity, than those without lifetime ED. Conclusions This is one of the first studies to analyse the cognitive and metabolic impact of a previous history of ED. The results showed that previous ED was associated with greater affective and cognitive impairment, but also with higher BMI, later in life. No other MetS risk factors were found, after controlling for relevant variables.
Autores:
López-González, L.; Becerra-Tomás, N. (Autor de correspondencia); Babio, N. (Autor de correspondencia); et al.
Revista:
CLINICAL NUTRITION
ISSN:
0261-5614
Año:
2021
Vol.:
40
N°:
4
Págs.:
1510 - 1518
Background and aims: Previous studies, mainly focused on quantity rather than variety, have shown beneficial associations between the amount of fruit and vegetable consumed, diet quality and healthy lifestyle. The aim is to evaluate the association between fruit and vegetable consumption, diet quality and lifestyle in an elderly Mediterranean population, considering both variety and the combination of quantity and variety (QV). Methods: A cross-sectional analysis of 6647 participants (51.6% of males) was conducted in the framework of the PREDIMED-Plus study. A variety score was created as the sum of vegetables and/or fruits consumed at least once per month using food frequency questionnaires. Dietary Reference Intakes (EAR and IA values) were used to estimate the prevalence of inadequate intake of dietary fiber and micro nutrients. Logistic regression models were performed to examine the association between fruit and vegetable consumption and not meeting the DRIs, by tertiles of fruit and vegetable variety and QV categories. Results: Participants with higher fruit and vegetable variety score reported a significant higher intake of fiber, vitamins, minerals and flavonoids and were significantly more likely to be physically active and non-smoker. Besides, higher variety in fruit and vegetable consumption was associated with lower prevalence of having an inadequate intake of fiber [(0.13 (0.11-0.16)], two or more [(0.17 (0.14-0.21)], three or more [(0.15 (0.13-0.18)] and four or more [(0.11 (0.10-0.14)] micronutrients in our participants. Higher quantity and variety in fruit and vegetable consumption was associated with lower prevalence of having an inadequate intake of fiber [(0.05 (0.04-0.06)], two or more [(0.08 (0.06-0.10)], three or more [(0.08 (0.06-0.09)] and four or more [(0.06 (0.05-0.07)] micronutrients. Conclusion: Greater variety in fruit and vegetable intake was associated with better nutrient adequacy, diet quality and healthier lifestyle in an elderly Mediterranean population.
Autores:
Paz-Graniel, I. ; Babio, N. ; Becerra¿Tomás, N. ; et al.
Revista:
EUROPEAN JOURNAL OF NUTRITION
ISSN:
1436-6207
Año:
2020
Vol.:
60
N°:
5
Págs.:
2381 - 2396
Purpose Coffee is rich in compounds such as polyphenols, caffeine, diterpenes, melanoidins and trigonelline, which can stimulate brain activity. Therefore, the possible association of coffee consumption with cognition is of considerable research interest. In this paper, we assess the association of coffee consumption and total dietary caffeine intake with the risk of poor cognitive functioning in a population of elderly overweight/obese adults with metabolic syndrome (MetS). Methods PREDIMED-plus study participants who completed the Mini-Mental State Examination test (MMSE) (n = 6427; mean age = 65 +/- 5 years) or a battery of neuropsychological tests were included in this cross-sectional analysis. Coffee consumption and total dietary caffeine intake were assessed at baseline using a food frequency questionnaire. Logistic regression models were fitted to evaluate the association between total, caffeinated and decaffeinated coffee consumption or total dietary caffeine intake and cognitive impairment. Results Total coffee consumers and caffeinated coffee consumers had better cognitive functioning than non-consumers when measured by the MMSE and after adjusting for potential confounders (OR 0.63; 95% CI 0.44-0.90 and OR 0.56; 95% CI 0.38-0.83, respectively). Results were similar when cognitive performance was measured using the Clock Drawing Test (CDT) and Trail Making Test B (TMT-B). These associations were not observed for decaffeinated coffee consumption. Participants in the highest tertile of total dietary caffeine intake had lower odds of poor cognitive functioning than those in the reference tertile when screened by the MMSE (OR 0.64; 95% CI 0.47-0.87) or other neurophysiological tests evaluating a variety of cognitive domains (i.e., CDT and TMT-A). Conclusions Coffee consumption and total dietary caffeine intake were associated with better cognitive functioning as measured by various neuropsychological tests in a Mediterranean cohort of elderly individuals with MetS.
Revista:
OBESITY
ISSN:
1930-7381
Año:
2020
Vol.:
28
N°:
3
Págs.:
537 - 543
Objective The hypertriglyceridemic waist (HTGW) phenotype is characterized by abdominal obesity and high levels of triglycerides. In a cross-sectional assessment of PREDIMED-Plus trial participants at baseline, HTGW phenotype prevalence was evaluated, associated risk factors were analyzed, and the lifestyle of individuals with metabolic syndrome and HTGW was examined. Methods A total of 6,874 individuals aged 55 to 75 with BMI >= 27 and < 40 kg/m(2) were included and classified by presence (HTGW(+)) or absence (HTGW(-)) of HTGW (waist circumference: men >= 102 cm, women >= 88 cm; fasting plasma triglycerides >= 150 mg/dL). Analytical parameters and lifestyle (energy intake and expenditure) were analyzed. Results A total of 38.2% of the sample met HTGW(+) criteria. HTGW(+) individuals tended to be younger, have a greater degree of obesity, be sedentary, and be tobacco users. They had higher peripheral glucose, total cholesterol, and low-density lipoprotein cholesterol levels; had lower high-density lipoprotein cholesterol levels; and had increased prevalence of type 2 diabetes mellitus. Mediterranean diet (MedDiet) adherence and physical activity were greater in HTGW(-) patients. Age, BMI, tobacco use, total energy expenditure, hypertension, type 2 diabetes mellitus, and MedDiet adherence were associated with HTGW(+). Conclusions HTGW is a highly prevalent phenotype in this population associated with younger age, higher BMI, tobacco use, and decreased MedDiet adherence. HTGW(-) individuals were more physically active with greater total physical activity, and fewer had hypertension.
Revista:
NUTRIENTS
ISSN:
2072-6643
Año:
2020
Vol.:
12
N°:
5
Págs.:
1260
Non-alcoholic fatty liver disease (NAFLD) is a major cause of liver disease worldwide. Some genetic variants might be involved in the progression of this disease. The study hypothesized that individuals with the rs7359397 T allele have a higher risk of developing severe stages of NAFLD compared with non-carriers where dietary intake according to genotypes could have a key role on the pathogenesis of the disease. SH2B1 genetic variant was genotyped in 110 overweight/obese subjects with NAFLD. Imaging techniques, lipidomic analysis and blood liver biomarkers were performed. Body composition, general biochemical and dietary variables were also determined. The SH2B1 risk genotype was associated with higher HOMA-IR p = 0.001; and Fatty Liver Index (FLI) p = 0.032. Higher protein consumption (p = 0.028), less mono-unsaturated fatty acid and fiber intake (p = 0.045 and p = 0.049, respectively), was also referred to in risk allele genotype. Lipidomic analysis showed that T allele carriers presented a higher frequency of non-alcoholic steatohepatitis (NASH) (69.1% vs. 44.4%; p = 0.006). In the genotype risk group, adjusted logistic regression models indicated a higher risk of developing an advanced stage of NAFLD measured by FLI (OR 2.91) and ultrasonography (OR 4.15). Multinomial logistic regression models showed that risk allele carriers had higher liver fat accumulation risk (RRR 3.93) and an increased risk of NASH (RRR 7.88). Consequently, subjects carrying the T allele were associated with a higher risk of developing a severe stage of NAFLD. These results support the importance of considering genetic predisposition in combination with a healthy dietary pattern in the personalized evaluation and management of NAFLD.
Autores:
Becerra-Tomas, N. ; Mena-Sanchez, G. ; Diaz-Lopez, A. ; et al.
Revista:
EUROPEAN JOURNAL OF NUTRITION
ISSN:
1436-6207
Año:
2020
Vol.:
59
N°:
5
Págs.:
2195 - 2206
Purpose: To assess the association between the consumption of non-soy legumes and different subtypes of non-soy legumes and serum uric acid (SUA) or hyperuricemia in elderly individuals with overweight or obesity and metabolic syndrome.
Methods: A cross-sectional analysis was conducted in the framework of the PREDIMED-Plus study. We included 6329 participants with information on non-soy legume consumption and SUA levels. Non-soy legume consumption was estimated using a semi-quantitative food frequency questionnaire. Linear regression models and Cox regression models were used to assess the associations between tertiles of non-soy legume consumption, different subtypes of non-soy legume consumption and SUA levels or hyperuricemia prevalence, respectively.
Results: Individuals in the highest tertile (T3) of total non-soy legume, lentil and pea consumption, had 0.14 mg/dL, 0.19 mg/dL and 0.12 mg/dL lower SUA levels, respectively, compared to those in the lowest tertile (T1), which was considered the reference one. Chickpea and dry bean consumption showed no association. In multivariable models, participants located in the top tertile of total non-soy legumes [prevalence ratio (PR): 0.89; 95% CI 0.82-0.97; p trend = 0.01, lentils (PR: 0.89; 95% CI 0.82-0.97; p trend = 0.01), dry beans (PR: 0.91; 95% C: 0.84-0.99; p trend = 0.03) and peas (PR: 0.89; 95% CI 0.82-0.97; p trend = 0.01)] presented a lower prevalence of hyperuricemia (vs. the bottom tertile). Chickpea consumption was not associated with hyperuricemia prevalence.
Conclusions: In this study of elderly subjects with metabolic syndrome, we observed that despite being a purine-rich food, non-soy legumes were inversely associated with SUA levels and hyperuricemia prevalence.
Autores:
Bouzas, C.; Bibiloni, M. D. M.; Garcia, S. ; et al.
Revista:
NUTRIENTS
ISSN:
2072-6643
Año:
2020
Vol.:
12
N°:
10
One-year dietary quality change according to the preceding maximum weight in a lifestyle intervention program (PREDIMED-Plus trial, 55-75-year-old overweight or obese adults; n = 5695) was assessed. A validated food frequency questionnaire was used to assess dietary intake. A total of 3 groups were made according to the difference between baseline measured weight and lifetime maximum reported weight: (a) participants entering the study at their maximum weight, (b) moderate weight loss maintainers (WLM), and (c) large WLM. Data were analyzed by General Linear Model. All participants improved average lifestyle. Participants entering the study at their maximum weight were the most susceptible to improve significantly their dietary quality, assessed by adherence to Mediterranean diet, DII and both healthful and unhealthful provegetarian patterns. People at maximum weight are the most benefitted in the short term by a weight management program. Long term weight loss efforts may also reduce the effect of a weight management program.
Autores:
Castro-Barquero, S.; Tresserra-Rimbau, A.; Vitelli-Storelli, F. ; et al.
Revista:
NUTRIENTS
ISSN:
2072-6643
Año:
2020
Vol.:
12
N°:
3
Págs.:
689
Dietary polyphenol intake is associated with improvement of metabolic disturbances. The aims of the present study are to describe dietary polyphenol intake in a population with metabolic syndrome (MetS) and to examine the association between polyphenol intake and the components of MetS. This cross-sectional analysis involved 6633 men and women included in the PREDIMED (PREvencion con DIeta MEDiterranea-Plus) study. The polyphenol content of foods was estimated from the Phenol-Explorer 3.6 database. The mean of total polyphenol intake was 846 +/- 318 mg/day. Except for stilbenes, women had higher polyphenol intake than men. Total polyphenol intake was higher in older participants (>70 years of age) compared to their younger counterparts. Participants with body mass index (BMI) >35 kg/m(2) reported lower total polyphenol, flavonoid, and stilbene intake than those with lower BMI. Total polyphenol intake was not associated with a better profile concerning MetS components, except for high-density lipoprotein cholesterol (HDL-c), although stilbenes, lignans, and other polyphenols showed an inverse association with blood pressure, fasting plasma glucose, and triglycerides. A direct association with HDL-c was found for all subclasses except lignans and phenolic acids. To conclude, in participants with MetS, higher intake of several polyphenol subclasses was associated with a better profile of MetS components, especially HDL-c.
Revista:
JOURNAL OF CLINICAL LIPIDOLOGY
ISSN:
1933-2874
Autores:
Paz-Graniel, I.; Babio, N. (Autor de correspondencia); Serra-Majem, L.; et al.
Revista:
EUROPEAN JOURNAL OF NUTRITION
ISSN:
1436-6207
Año:
2020
Vol.:
59
N°:
4
Págs.:
1595 - 1606
Purpose We aimed to evaluate associations between compliance with recommendations for total water intake (TWI) and total water intake from fluids (TWIF), and some socio-demographic and lifestyle factors of a senior Mediterranean population at high cardiovascular risk. Methods Cross-sectional analysis with data of 1902 participants from the PREDIMED-Plus study. A validated 32-item Spanish fluid-intake questionnaire was used to assess beverage consumption and water intake. Multivariable logistic regression models were used to assess the odds ratio (OR) and the 95% confidence interval (CI) for complying with European Food Safety Agency recommendations for TWI and TWIF according to various socio-demographic and lifestyle factors, and for the joint associations of Mediterranean diet (MedDiet) adherence and moderate-vigorous physical activity (MVPA). Results The mean total volume of fluid intake in the population studied was 1934 +/- 617 mL/day. Water was the most frequently consumed beverage. Significant differences between sex were only observed in alcoholic and hot beverage consumption. Compliance with TWIF was associated with being women (OR 3.02; 2.40, 3.80), high adherence to MedDiet (OR 1.07; 1.02, 1.12), and participants who were more engaged in physical activity (PA) (OR 1.07; 1.02, 1.13). Age was inversely associated (OR 0.96; 0.94, 0.98). Similar results for TWI recommendations compliance were observed in relation to being women (OR 5.34; 3.85, 7.42), adherence to MedDiet (OR 1.16; 1.02, 1.31) and PA (OR 1.07; 1.00, 1.15). The joint association of PA and MedDiet, showed that participants with higher adherence to MedDiet and meeting WHO recommendations for MVPA complied better with the TWI recommendations (OR 1.66; 1.19, 2.32). Conclusions High compliance with recommendations for TWI was associated with being a woman, and a healthy lifestyle characterized by high adherence to the MedDiet and PA.
Revista:
NUTRITION
ISSN:
0899-9007
Año:
2020
Vol.:
71
Págs.:
110620
Objective: Non-alcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver morbidity. This condition often is accompanied by obesity, diabetes, and metabolic syndrome (MetS). The aim of this study was to evaluate the connection between lifestyle factors and NAFLD in individuals with MetS.
Methods: A cross-sectional study with 328 participants (55-75 y of age) diagnosed with MetS participating in the PREDIMED-Plus trial was conducted. NAFLD status was evaluated using the non-invasive hepatic steatosis index (HSI). Sociodemographic, clinical, and dietary data were collected. Adherence to the Mediterranean diet (mainly assessed by the consumption of olive oil, nuts, legumes, whole grain foods, fish, vegetables, fruits, and red wine) and physical activity were assessed using validated questionnaires.
Results: Linear regression analyses revealed that HSI values tended to be lower with increasing physical activity tertiles (T2, ß = -1.47; 95% confidence interval [CI], -2.73 to -0.20; T3, ß = -1.93; 95% CI, -3.22 to -0.65 versus T1, Ptrend = 0.001) and adherence to the Mediterranean diet was inversely associated with HSI values: (moderate adherence ß = -0.70; 95% CI, -1.92 to 0.53; high adherence ß = -1.57; 95% CI, -3.01 to -0.13 versus lower, Ptrend = 0.041). Higher tertiles of legume consumption were inversely associated with the highest tertile of HSI (T2, relative risk ratio [RRR], 0.45; 95% CI, 0.22-0.92; P = 0.028; T3, RRR, 0.48; 95% CI, 0.24-0.97; P = 0.
Autores:
Gallardo-Alfaro, L.; Bibiloni, M. D. M. ; Mascaró, C. M.; et al.
Revista:
NUTRIENTS
ISSN:
2072-6643
Año:
2020
Vol.:
12
N°:
4
Págs.:
1013
Healthy lifestyle factors, such as physical activity (PA) and Mediterranean diet (MD), decrease the likelihood of developing metabolic syndrome (MetS). The aim of this study was to report main lifestyle components and related factors according to the MetS severity. Cross-sectional analysis was done of baseline lifestyle factors from 5739 participants with overweight/obesity and MetS features (aged 55-75 years) included in the PREDIMED-PLUS primary cardiovascular prevention randomized trial. Participants were categorized in tertiles according to a validated MetS severity score (MetSSS). Anthropometrics, visceral adiposity index, dietary nutrient intake, biochemical marker levels, as well as a Dietary Inflammatory Index and depression symptoms (Beck Depression Inventory-II) were measured. Diet quality was assessed using a 17-item energy-restricted MD questionnaire. Duration and intensity of PA was self-reported using the Minnesota-REGICOR Short Physical Activity Questionnaire. Sedentary behaviours were measured using the Spanish version of the Nurses' Health Study questionnaire. The 30 s chair stand test was also assessed. Participants with highest MetSSS showed higher values of cardiovascular risk factors (except for total cholesterol and LDL cholesterol), depression risk, sedentary and TV viewing time, and lower moderate and vigorous leisure-time physical activity (LTPA). Highest MetSSS participants tended to a pro-inflammatory dietary pattern and tended to lower MD adherence. In addition, they showed lower carbohydrate and nut intake and higher intake of protein, saturated and trans fatty acids, cholesterol, iodine, sodium, red and processed meat products, other oils different from olive oil and spirit alcoholic drinks. The highest MetS severity score was associated with lower moderate and vigorous LTPA and higher sedentary time and depression risk, as they tended to a pro-inflammatory dietary pattern and lower MD adherence.
Autores:
Julibert, A.; Bibiloni, M. D. ; Gallardo-Alfaro, L. ; et al.
Revista:
JOURNAL OF NUTRITION
ISSN:
0022-3166
Año:
2020
Vol.:
150
N°:
12
Págs.:
3161 - 3170
Background: High nut consumption has been previously associated with decreased prevalence of metabolic syndrome (MetS) regardless of race and dietary patterns. Objectives: The aim of this study was to assess whether changes in nut consumption over a 1-y follow-up are associated with changes in features of MetS in a middle-aged and older Spanish population at high cardiovascular disease risk. Methods: This prospective 1-y follow-up cohort study, conducted in the framework of the PREvencion con DIeta MEDiterranea (PREDIMED)-Plus randomized trial, included 5800 men and women (55-75 y old) with overweight/obesity [BMI (in kg/m(2)) >= 27 and <40] and MetS. Nut consumption (almonds, pistachios, walnuts, and other nuts) was assessed using data from a validated FFQ. The primary outcome was the change from baseline to 1 y in features of MetS [waist circumference (WC), glycemia, HDL cholesterol, triglyceride (TG), and systolic and diastolic blood pressure] and excess weight (bodyweight and BMI) according to tertiles of change in nut consumption. Secondary outcomes included changes in dietary and lifestyle characteristics. A generalized linear model was used to compare 1-y changes in features of MetS, weight, dietary intakes, and lifestyle characteristics across tertiles of change in nut consumption. Results: As nut consumption increased, between each tertile there was a significant decrease in WC, TG, systolic blood pressure, weight, and BMI (P < 0.05), and a significant increase in HDL cholesterol (only in women, P = 0.044). The interaction effect between time and group was significant for total energy intake (P < 0.001), adherence to the Mediterranean diet (MedDiet) (P < 0.001), and nut consumption (P < 0.001). Across tertiles of increasing nut consumption there was a significant increase in extra virgin olive oil intake and adherence to the MedDiet; change in energy intake, on the other hand, was inversely related to consumption of nuts. Conclusions: Features of MetS and excess weight were inversely associated with nut consumption after a 1-y follow-up in the PREDIMED-Plus study cohort.
Autores:
Bibiloni, M. D. M.; Bouzas, C.; Abbate, M.; et al.
Revista:
CLINICAL NUTRITION
ISSN:
0261-5614
Año:
2020
Vol.:
39
N°:
3
Págs.:
853 - 861
BACKGROUND & AIMS:
Few studies have compared micronutrient intake and fulfilment of average requirements (EAR) in non-diabetic, pre-diabetic and diabetic adults at high cardiovascular risk. We assessed these variables in a large sample of participants in the PREDIMED-PLUS randomized trial of primary cardiovascular prevention with diet and physical activity.
DESIGN:
Baseline assessment of nutritional adequacy in n = 5792 men and women, aged 55-75 years, with overweight/obesity and some metabolic syndrome features.
METHODS:
Participants were categorised as non-diabetic (n = 2390), pre-diabetic (n = 1322) or diabetic (n = 2080) by standard criteria. Food and nutrient intake were assessed using a validated food frequency questionnaire. Micronutrients examined were vitamins B1, B2, B3, B6, B12, A, C, D, E and folic acid; Ca, K, P, Mg, Fe, Se, Cr, Zn, and iodine. The proportion of micronutrient inadequacy was evaluated using the EAR or adequate intake (AI) cut-offs. Diet quality was also determined using a 17-item energy-restricted Mediterranean diet (MedDiet) questionnaire.
RESULTS:
Compared to non-diabetic participants, those with pre-diabetes had lower intakes of total carbohydrates (CHO) and higher intakes of total fat and saturated fatty acids (SFA) and were more likely to be below EAR for folic, while diabetic participants had lower intakes of total CHO and higher intakes of protein, total fat, monounsaturated fatty acids, SFA and cholesterol and were less likely to be below EAR for vitamins B2, and B6, Ca, Zn and iodine. Diabetic participants disclosed higher adherence to the MedDiet than the other two groups.
CONCLUSIONS:
Older Mediterranean individuals with metabolic syndrome and diabetes had better nutrient adequacy and adherence to the MedDiet than those with pre-diabetes or no diabetes.
Autores:
Monserrat-Mesquida, M.; Quetglas-Llabres, M.; Abbate, M.; et al.
Revista:
ANTIOXIDANTS
ISSN:
2076-3921
Año:
2020
Vol.:
9
N°:
8
Págs.:
759
Background: Nonalcoholic fatty liver disease (NAFLD) is characterized by excessive fat accumulation, especially triglycerides, in hepatocytes. If the pathology is not properly treated, it can progress to nonalcoholic steatohepatitis (NASH) and continue to fibrosis, cirrhosis or hepatocarcinoma. Objective: The aim of the current research was to identify the plasma biomarkers of liver damage, oxidative stress and inflammation that facilitate the early diagnosis of the disease and control its progression. Methods: Antioxidant and inflammatory biomarkers were measured in the plasma of patients diagnosed with NAFLD (n= 100 adults; 40-60 years old) living in the Balearic Islands, Spain. Patients were classified according to the intrahepatic fat content (IFC) measured by magnetic resonance imaging (MRI). Results: Circulating glucose, glycosylated haemoglobin, triglycerides, low-density lipoprotein-cholesterol, aspartate aminotransferase and alanine aminotransferase were higher in patients with an IFC >= 2 of NAFLD in comparison to patients with an IFC of 0 and 1. The plasma levels of catalase, irisin, interleukin-6, malondialdehyde, and cytokeratin 18 were higher in stage >= 2 subjects, whereas the resolvin D1 levels were lower. No differences were observed in xanthine oxidase, myeloperoxidase, protein carbonyl and fibroblast growth factor 21 depending on liver status. Conclusion: The current available data show that the severity of NAFLD is associated with an increase in oxidative stress and proinflammatory status. It may be also useful as diagnostic purpose in clinical practice.
Revista:
SCIENTIFIC REPORTS
ISSN:
2045-2322
Año:
2020
Vol.:
10
N°:
1
Págs.:
3472
Physical activity (PA) has been hypothesized to be effective to maintaining cognitive function and delay cognitive decline in the elderly, but physical fitness (PF) could be a better predictor of cognitive function. We aimed to study the association between PA and PF with cognitive function and quality of life using cross-sectional data from 6874 participants of the PREDIMED-Plus trial (64.9 +/- 4.9 years, 48.5% female). PF and PA were measured with a Chair Stand Test, the REGICOR and Rapid Assessment Physical Activity questionnaires. Cognitive function was measured with Mini-mental State Examination, Control Oral Word Association Test, Trail Making Test and Digit Span tests; whereas health-related quality of life was assessed with the SF36-HRQL test. Cognitive and quality of life scores were compared among PF quartiles and PA levels (low, moderate and high) with ANCOVA and with Chair Stand repetitions and energy expenditure from total PA with multivariable linear regression adjusted for confounding factors. PF associated with higher scores in phonemic and semantic verbal fluency tests and with lower TMT A time. However, PA was not associated with the neurocognitive parameters evaluated. Both PF and PA levels were strongly associated with a better quality of life. We concluded that PF, but not PA, is associated with a better cognitive function.
Revista:
DIAGNOSTICS
ISSN:
2075-4418
Año:
2020
Vol.:
10
N°:
11
Revista:
ATHEROSCLEROSIS
ISSN:
0021-9150
Año:
2020
Vol.:
314
Págs.:
48 - 57
Revista:
THERAPEUTIC ADVANCES IN ENDOCRINOLOGY AND METABOLISM
ISSN:
2042-0188
Revista:
REVISTA ESPAÑOLA DE ENFERMEDADES DIGESTIVAS
ISSN:
1130-0108
Año:
2020
Vol.:
112
N°:
2
Págs.:
94 - 100
Revista:
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
ISSN:
1660-4601
Año:
2020
Vol.:
17
N°:
10
Revista:
MOLECULES
ISSN:
1420-3049
Año:
2020
Vol.:
25
N°:
18
Revista:
REVISTA ESPAÑOLA DE CARDIOLOGIA
ISSN:
0300-8932
Año:
2019
Vol.:
72
N°:
11
Págs.:
925 - 934
Introduction and objectives: The cardiovascular benefits of the Mediterranean diet have usually been assessed under assumptions of ad libitum total energy intake (ie, no energy restriction). In the recently launched PREDIMED-Plus, we conducted exploratory analyses to study the baseline associations between adherence to an energy-restricted Mediterranean diet (MedDiet) and the prevalence of cardiovascular risk factors (CVRF). Methods: Cross-sectional assessment of all PREDIMED-Plus participants (6874 older adults with overweight/obesity and metabolic syndrome) at baseline. The participants were assessed by their usual primary care physicians to ascertain the prevalence of 4 CVRF (hypertension, obesity, diabetes, and dyslipidemia). A 17-point PREDIMED-Plus score was used to measure adherence to the MedDiet. Multivariable models were fitted to estimate differences in means and prevalence ratios for individual and clustered CVRF. Results: Better adherence to a MedDiet pattern was significantly associated with lower average triglyceride levels, body mass index, and waist circumference. Compared with low adherence (<= 7 points in the 17-point score), better adherence to the MedDiet (11-17 points) showed inverse associations with hypertension (prevalence ratio = 0.97; 95%CI, 0.94-1.00) and obesity (prevalence ratio = 0.96; 95%CI, 0.92-1.00), but positive associations with diabetes (prevalence ratio = 1.19; 95%CI, 1.07-1.32). Compared with the lowest third of adherence, women in the upper third showed a significantly lower prevalence of the clustering of 3 or more CVRF (prevalence ratio = 0.91; 95%CI, 0.83-0.98). Conclusions: Among participants at high cardiovascular risk, better adherence to a MedDiet showed significant inverse associations with CVRF among women, and improved lipid profiles and adiposity measures. (C) 2018 Sociedad Espanola de Cardiologia. Published by Elsevier Espana, S.L.U. All rights reserved.
Revista:
EUROPEAN JOURNAL OF NUTRITION
ISSN:
1436-6207
Año:
2019
Vol.:
58
N°:
5
Págs.:
1971 - 1980
Purpose The interindividual variable response to weight-loss treatments requires the search for new predictive biomarkers for improving the success of weight-loss programs. The aim of this study is to identify novel genes that distinguish individual responses to a weight-loss dietary treatment by using the integrative analysis of mRNA expression and DNA methylation arrays. Methods Subjects from Metabolic Syndrome Reduction in Navarra (RESMENA) project were classified as low (LR) or high (HR) responders depending on their weight loss. Transcriptomic (n=24) and epigenomic (n=47) patterns were determined by array-based genome-wide technologies in human white blood cells at the baseline of the treatment period. CD44 expression was validated by qRT-PCR and methylation degree of CpGs of the gene was validated by MassARRAY((R)) EpiTYPER (TM) in a subsample of 47 subjects. CD44 protein levels were measured by ELISA in human plasma. Results Different expression and DNA methylation profiles were identified in LR in comparison to HR. The integrative analysis of both array data identified four genes: CD44, ITPR1, MTSS1 and FBXW5 that were differently methylated and expressed between groups. CD44 showed higher expression and lower DNA methylation levels in LR than in HR. Although differences in CD44 protein levels between LR and HR were not statistically significant, a positive association was observed between CD44 mRNA expression and protein levels. Conclusions In summary, the combination of a genome-wide methylation and expression array dataset can be a useful strategy to identify novel genes that might be considered as predictors of the dietary response. CD44 gene transcription and methylation may be a possible candidate biomarker for weight-loss prediction.
Autores:
Recaredo, G.; Marin-Alejandre, B. A. ; Cantero, Irene; et al.
Revista:
NUTRIENTS
ISSN:
2072-6643
Año:
2019
Vol.:
11
N°:
10
Págs.:
2359
Non-alcoholic fatty liver disease (NAFLD) is considered the hepatic manifestation of metabolic syndrome. Obesity and unhealthy dietary habits are described as risk factors for NAFLD. The aim of this study was to investigate the association between the consumption of different animal protein sources and hepatic status in NAFLD adults. A total of 112 overweight/obese participants with NAFLD from Fatty Liver in Obesity (FLiO) study were evaluated at baseline. Diet, body composition, and biochemical variables were evaluated. Hepatic status was also assessed by Magnetic Resonance Imaging, ultrasonography, and elastography. Red meat consumption showed a positive relationship with liver iron content (r = 0.224; p = 0.021) and ferritin concentration (r = 0.196; p = 0.037). Processed meat consumption exhibited a positive association with liver iron content (r = 0.308; p = 0.001), which was also found in the quantile regression (beta = 0.079; p = 0.028). Fish consumption was related with lower concentration of ferritin (r = -0.200; p = 0.034). This association was further evidenced in the regression model (beta = -0.720; p = 0.033). These findings suggest that the consumption of different animal protein sources differentially impact on liver status in obese subjects with NAFLD, showing fish consumption as a healthier alternative for towards NAFLD features.
Revista:
NUTRIENTS
ISSN:
2072-6643
Año:
2019
Vol.:
11
N°:
2
Págs.:
322
The relevance of sleep patterns in the onset or evolution of nonalcoholic fatty liver disease (NAFLD) is still poorly understood. Our aim was to investigate the association between sleep characteristics and hepatic status indicators in obese people with NAFLD compared to normal weight non-NAFLD controls. Ninety-four overweight or obese patients with NAFLD and 40 non-NAFLD normal weight controls assessed by abdominal ultrasonography were enrolled. Hepatic status evaluation considered liver stiffness determined by Acoustic Radiation Force Impulse elastography (ARFI) and transaminases. Additionally, anthropometric measurements, clinical characteristics, and biochemical profiles were determined. Sleep features were evaluated using the Pittsburgh Sleep Quality Index (PSQI). Hepatic status parameters, anthropometric measurements, and clinical and biochemical markers differed significantly in NAFLD subjects compared to controls, as well as sleep efficiency, sleep disturbance score, and sleep quality score. In the NAFLD group, a higher prevalence of short sleep duration (p = 0.005) and poor sleep quality (p = 0.041) were found. Multivariate-adjusted odds ratio (95% confidence interval) for NAFLD considering sleep disturbance was 1.59 (1.11¿2.28). Regression models that included either sleep disturbance or sleep quality predicted up to 20.3% and 20.4% of the variability of liver stiffness, respectively, and after adjusting for potential confounders. Current findings suggest that sleep disruption may be contributing to the pathogenesis of NAFLD as well as the alteration of the liver may be affecting sleep patterns. Consequently, sleep characteristics may be added to the list of modifiable behaviors to consider in health promotion strategies and in the prevention and management of NAFLD.
Revista:
JOURNAL OF CACHEXIA, SARCOPENIA AND MUSCLE
ISSN:
2190-5991
Año:
2019
Vol.:
10
N°:
5
Págs.:
974 - 984
Background Sarcopenia is a progressive age-related skeletal muscle disorder associated with increased likelihood of adverse outcomes. Muscle wasting is often accompanied by an increase in body fat, leading to 'sarcopenic obesity'. The aim of the present study was to analyse the association of lifestyle variables such as diet, dietary components, physical activity (PA), body composition, and inflammatory markers, with the risk of sarcopenic obesity. Methods A cross-sectional analysis based on baseline data from the PREDIMED-Plus study was performed. A total of 1535 participants (48% women) with overweight/obesity (body mass index: 32.5 +/- 3.3 kg/m(2); age: 65.2 +/- 4.9 years old) and metabolic syndrome were categorized according to sex-specific tertiles (T) of the sarcopenic index (SI) as assessed by dual-energy X-ray absorptiometry scanning. Anthropometrical measurements, biochemical markers, dietary intake, and PA information were collected. Linear regression analyses were carried out to evaluate the association between variables. Results Subjects in the first SI tertile were older, less physically active, showed higher frequency of abdominal obesity and diabetes, and consumed higher saturated fat and less vitamin C than subjects from the other two tertiles (all P < 0.05). Multiple adjusted linear regression models evidenced significant positive associations across tertiles of SI with adherence to the Mediterranean dietary score (P-trend < 0.05), PA (P-trend < 0.0001), and the 30 s chair stand test (P-trend < 0.0001), whereas significant negative associations were found with an inadequate vitamin C consumption (P-trend < 0.05), visceral fat and leucocyte count (all P-trend < 0.0001), and some white cell subtypes (neutrophils and monocytes), neutrophil-to-lymphocyte ratio, and platelet count (all P-trend < 0.05). When models were additionally adjusted by potential mediators (inflammatory markers, diabetes, and waist circumference), no relevant changes were observed, only dietary variables lost significance. Conclusions Diet and PA are important regulatory mediators of systemic inflammation, which is directly involved in the sarcopenic process. A healthy dietary pattern combined with exercise is a promising strategy to limit age-related sarcopenia.
Revista:
GENES AND NUTRITION
ISSN:
1555-8932
Año:
2019
Vol.:
14
Págs.:
11
BACKGROUND:
Olfaction is an important sense influencing food preferences, appetite, and eating behaviors. This hypothesis-driven study aimed to assess associations between olfactory pathway gene methylation signatures, obesity features, and dietary intakes.
METHODS:
A nutriepigenomic analysis was conducted in 474 adults from the Methyl Epigenome Network Association (MENA) project. Anthropometric measurements, clinical data, and serum metabolic profiles of the study population were obtained from structured databases of the MENA cohorts. Habitual dietary intake was assessed using a validated semiquantitative food frequency questionnaire. DNA methylation was measured in circulating white blood cells by microarray (Infinium Human Methylation 450¿K BeadChips). FDR values (p <¿0.0001) were used to select those CpGs that showed the best correlation with body mass index (BMI) and waist circumference (WC). Pathway analyses involving the characterization of genes involved in the olfactory transduction system were performed using KEGG and pathDIP reference databases.
RESULTS:
Overall, 15 CpG sites at olfactory pathway genes were associated with BMI (p <¿0.0001) and WC (p <¿0.0001) after adjustments for potential confounding factors. Together, methylation levels at the15 CpG sites accounted for 22% and 20% of the variability in BMI and WC (r 2 =¿0.219, p <¿0.001, and r 2 =¿0.204, p <¿0.001, respectively). These genes encompassed olfactory receptors (OR4D2, OR51A7, OR2T34, and OR2Y1) and several downstream signaling molecules (SLC8A1, ANO2, PDE2A, CALML3, GNG7, CALML6, PRKG1, and CAMK2D), which significantly regulated odor detection and signal transduction processes within the complete olfactory cascade, as revealed by pathway enrichment analyses (p =¿1.94¿×¿10-10). Moreover, OR4D2 and OR2Y1 gene methylation patterns strongly correlated with daily intakes of total energy (p <¿0.0001), carbohydrates (p <¿0.0001), protein (p <¿0.0001), and fat (p <¿0.0001).
CONCLUSIONS:
The results of this study suggest novel relationships between olfactory pathway gene methylation signatures, obesity indices, and dietary intakes.
Revista:
CLINICAL NUTRITION
ISSN:
0261-5614
Año:
2019
Vol.:
38
N°:
4
Págs.:
1883 - 1891
Background & aims: Excess adiposity is associated with poor cardiometabolic (CM) health. To date, several techniques and indicators have been developed to determine adiposity. We aimed to compare the ability of traditional anthropometric, as well as standard and novel DXA-derived parameters related to overall and regional adiposity, to evaluate CM risk. Methods: Using the cross-sectional design in the context of the PREDIMED-Plus trial, 1207 Caucasian senior men and women with overweight/obesity and metabolic syndrome (MetS) were assessed. At baseline, anthropometry- and DXA-measured parameters of central, visceral, peripheral and central-to peripheral adiposity together with comprehensive set of CM risk factors were obtained. Partial correlations and areas under the ROC curve (AUC) were estimated to compare each adiposity measure with CM risk parameters, separately for men and women, and in the overall sample. Results: DXA-derived indicators, other than percentage of total body fat, showed stronger correlations (rho 0.172 to 0.206, p < 0.001) with CM risk than anthropometric indicators, after controlling for age, diabetes and medication use. In both sexes, DXA-derived visceral adipose tissue measures (VAT, VAT/Total fat, visceral-to-subcutaneous fat) together with lipodystrophy indicators (Trunk/Legs fat and Android/Gynoid fat) were strongly and positively correlated (p < 0.001) with glycated hemoglobin (HbA1c), the triglyceride and glucose index (TyG), triglycerides (TG), the ratio TG/HDL-cholesterol (TG/HDL-C), and were inversely related to HDL-C levels (p < 0.001). Furthermore, in AUC analyses for both sexes, VAT/Total fat showed the highest predictive ability for abnormal HbAl c levels (AUC = 0.629), VAT for TyG (AUC = 0.626), both lipodystrophy indicators for TG (AUCs = 0.556), and Trunk/Legs fat for HDL-C (AUC = 0.556) and TG/HDL-C (AUC = 0.581). Conclusions: DXA regional adiposity measures offer advantages beyond traditional anthropometric and DXA overall adiposity indicators for CM risk assessment in senior overweight/obese subjects with MetS. In particular, in both sexes, visceral adiposity better stratifies individuals at risk for glucose abnormalities, and indicators of lipodystrophy better predict markers of dyslipidemia. (C) 2018 Elsevier Ltd and European Society for Clinical Nutrition and Metabolism. All rights reserved.
Autores:
Salas-Salvado, J. (Autor de correspondencia); Diaz-Lopez, A.; Ruiz-Canela, Miguel; et al.
Revista:
DIABETES CARE
ISSN:
0149-5992
Año:
2019
Vol.:
42
N°:
5
Págs.:
777 - 788
OBJECTIVE The long-term impact of intentional weight loss on cardiovascular events remains unknown. We describe 12-month changes in body weight and cardiovascular risk factors in PREvencion con DIeta MEDiterranea (PREDIMED)-Plus, a trial designed to evaluate the long-term effectiveness of an intensive weight loss lifestyle intervention on primary cardiovascular prevention. RESEARCH DESIGN AND METHODS Overweight/obese adults with metabolic syndrome aged 55-75 years (n = 626) were randomized to an intensive weight loss lifestyle intervention based on an energy-restricted Mediterranean diet, physical activity promotion, and behavioral support (IG) or a control group (CG). The primary and secondary outcomes were changes in weight and cardiovascular risk markers, respectively. RESULTS Diet and physical activity changes were in the expected direction, with significant improvements in IG versus CG. After 12 months, IG participants lost an average of 3.2 kg vs. 0.7 kg in the CG (P < 0.001), a mean difference of -2.5 kg (95% CI -3.1 to -1.9). Weight loss >= 5% occurred in 33.7% of IG participants compared with 11.9% in the CG (P < 0.001). Compared with the CG, cardiovascular risk factors, including waist circumference, fasting glucose, triglycerides, and HDL cholesterol, significantly improved in IG participants (P < 0.002). Reductions in insulin resistance, HbA(1c), and circulating levels of leptin, interleukin-18, and MCP-1 were greater in IG than CG participants (P < 0.05). IG participants with prediabetes/diabetes significantly improved glycemic control and insulin sensitivity, along with triglycerides and HDL cholesterol levels compared with their CG counterparts. CONCLUSIONS PREDIMED-Plus intensive lifestyle intervention for 12 months was effective in decreasing adiposity and improving cardiovascular risk factors in overweight/obese older adults with metabolic syndrome, as well as in individuals with or at risk for diabetes.
Autores:
Sajoux, I.; Lorenzo, P. M. ; Gomez-Arbelaez, D. ; et al.
Revista:
NUTRIENTS
ISSN:
2072-6643
Año:
2019
Vol.:
11
N°:
10
Págs.:
2368
The preservation of muscle mass and muscle function after weight loss therapy is currently a considerable challenge in the fight against obesity. Muscle mass secretes proteins called myokines that have relevant functions in the regulation of metabolism and health. This study was aimed to evaluate whether a very low-calorie ketogenic (VLCK) diet may modulate myokine levels, in addition to changes in body composition, compared to a standard, balanced low-calorie (LC) diet or bariatric surgery in patients with obesity. Body composition, ketosis, insulin sensitivity and myokines were evaluated in 79 patients with overweight/obesity after a therapy to lose weight with a VLCK diet, a LC diet or bariatric surgery. The follow-up was 6 months. The weight loss therapies induced changes in myokine levels in association with changes in body composition and biochemical parameters. The effects on circulating myokine levels compared to those at baseline were stronger after the VLCK diet than LC diet or bariatric surgery. Differences reached statistical significance for IL-8, MMP2 and irisin. In conclusion, nutritional interventions or bariatric surgery to lose weight induces changes in circulating myokine levels, being this effect potentially most notable after following a VLCK diet.
Autores:
Malafarina, V. (Autor de correspondencia); Malafarina, C.; Biain Ugarte, A.; et al.
Revista:
NUTRIENTS
ISSN:
2072-6643
Año:
2019
Vol.:
11
N°:
9
Págs.:
2243
Background: Admitted bedridden older patients are at risk of the development of sarcopenia during hospital stay (incident sarcopenia). The objective of this study was to assess the factors associated with sarcopenia (incident and chronic) and its impact on mortality in older people with hip fracture. Methods: A multicenter, pragmatic, prospective observational study was designed. Older subjects with hip fracture admitted to two rehabilitation units were included. Sarcopenia was assessed at admission and at discharge according to the revised EWGSOP (European Working Group on Sarcopenia in Older People) consensus definition. The mortality was evaluated after 7 years of follow-up. Results: A total of 187 subjects (73.8% women) age 85.2 +/- 6.3 years were included. Risk factors associated to incident and chronic sarcopenia were undernutrition (body mass index-BMI and Mini Nutritional Assessment-Short Form-MNA-SF), hand-grip strength and skeletal muscle index. During follow-up 114 patients died (60.5% sarcopenic vs. 39.5% non-sarcopenic, p = 0.001). Cox regression analyses showed that factors associated to increased risk of mortality were sarcopenia (HR: 1.67, 95% CI 1.11-2.51) and low hand-grip strength (HR: 1.76, 95% CI 1.08-2.88). Conclusions: Older patients with undernutrition have a higher risk of developing sarcopenia during hospital stay, and sarcopenic patients have almost two times more risk of mortality than non-sarcopenic patients during follow-up after hip fracture.
Autores:
Bibiloni, M. D. M.; Julibert, A.; Bouzas, C.; et al.
Revista:
NUTRIENTS
ISSN:
2072-6643
Año:
2019
Vol.:
11
N°:
4
Págs.:
754
BACKGROUND:
Nut consumption has been associated with improved nutrient adequacy and diet quality in healthy adult populations but this association has never been explored in individuals at high cardiovascular risk.
OBJECTIVE:
to assess the associations between consumption of nuts and nutrient adequacy and diet quality in a Mediterranean population at high cardiovascular risk.
DESIGN:
baseline assessment of nutritional adequacy in participants (n = 6060, men and women, with ages 55¿75 years old, with overweight/obesity and metabolic syndrome) in the PREDIMED-PLUS primary cardiovascular prevention randomized trial.
METHODS:
nut intake was assessed using a validated food frequency questionnaire. Participants who reported consuming zero quantity of nuts were classified as 'non-nut consumers'. 'Nut consumers' were participants who reported consuming any quantity of nuts. Nineteen micronutrients were examined (vitamins B1, B2, B3, B6, B12, A, C, D, E and folic acid; Ca, K, P, Mg, Fe, Se, Cr, Zn, and iodine). The proportion of micronutrient inadequacy was estimated using the estimated average requirements (EAR) or adequate intake (AI) cut-points. Diet quality was also assessed using a 17-item Mediterranean dietary questionnaire (Mediterranean diet score, MDS), a carbohydrate quality index (CQI) and a fat quality index (FQI).
RESULTS:
eighty-two percent of participants were nut consumers (median of nut consumption 12.6 g/day; interquartile range: 6.0¿25.2). Nut consumers were less likely to be below the EAR for vitamins A, B1, B2, B6, C, D, E, folic acid, and Ca, Mg, Se and Zn than non-nut consumers. Nut consumers were also more likely to be above the AI for K and Cr than non-nut consumers. Nut consumers had lower prevalence of inadequate micronutrient intakes, but also higher CQI, higher FQI, and better scores of adherence to the Mediterranean diet (Mediterranean diet score, MDS).
CONCLUSIONS:
nut consumers had better nutrient adequacy, diet quality, and adherence to the MedDiet than those non-nut consumers.
Revista:
NUTRIENTS
ISSN:
2072-6643
Año:
2019
Vol.:
11
N°:
10
Págs.:
2543
The prevalence of nonalcoholic fatty liver disease (NAFLD) is increasing worldwide. NAFLD management is mainly focused on weight loss, but the optimal characteristics of the diet demand further investigation. This study aims to evaluate the effects of two personalized energy-restricted diets on the liver status in overweight or obese subjects with NAFLD after a 6 months follow-up. Ninety-eight individuals from the Fatty Liver in Obesity (FLiO) study were randomized into two groups and followed different energy-restricted diets. Subjects were evaluated at baseline and after 6 months. Diet, anthropometry, body composition, and biochemical parameters were evaluated. Liver assessment included ultrasonography, Magnetic Resonance Imaging, elastography, and determination of transaminases. Both dietary groups significantly improved their metabolic and hepatic markers after the intervention, with no significant differences between them. Multivariate regression models evidenced a relationship between weight loss, adherence to the Mediterranean Diet (MedDiet), and a decrease in liver fat content, predicting up to 40.9% of its variability after 6 months. Moreover, the antioxidant capacity of the diet was inversely associated with liver fat content. Participants in the group with a higher adherence to the MedDiet showed a greater reduction in body weight, total fat mass, and hepatic fat. These results support the benefit of energy-restricted diets, high adherence to the MedDiet, and high antioxidant capacity of the diet for the management of NAFLD in individuals with overweight or obesity.
Revista:
INTERNATIONAL JOURNAL OF MEDICAL SCIENCES
ISSN:
1449-1907
Año:
2019
Vol.:
16
N°:
1
Págs.:
75 - 83
Introduction: Non-alcoholic fatty liver disease (NAFLD) may progress to steatohepatitis, cirrhosis and complicated hepatocellular carcinoma with defined differential symptoms and manifestations. Objective: To evaluate the fatty liver status by several validated approaches and to compare imaging techniques, lipidomic and routine blood markers with magnetic resonance imaging in adults subjects with non-alcoholic fatty liver disease. Materials and methods: A total of 127 overweight/obese with NAFLD, were parallelly assessed by Magnetic Resonance Imaging (MRI), ultrasonography, transient elastography and a validated metabolomic designed test to diagnose NAFLD in this cross-sectional study. Body composition (DXA), hepatic related biochemical measurements as well as the Fatty Liver Index (FLI) were evaluated. This study was registered as FLiO: Fatty Liver in Obesity study; NCT03183193. Results: The subjects with more severe liver disease were found to have worse metabolic parameters. Positive associations between MRI with inflammatory and insulin biomarkers were found. A linear regression model including ALT, RBP4 and HOMA-IR was able to explain 40.9% of the variability in fat content by MRI. In ROC analyses a combination panel formed of ALT, HOMA-IR and RBP4 followed by ultrasonography, ALT and metabolomic test showed the major predictive ability (77.3%, 74.6%, 74.3% and 71.1%, respectively) for liver fat content. Conclusions: A panel combination including routine blood markers linked to insulin resistance showed highest associations with MRI considered as a gold standard for determining liver fat content. This combination of tests can facilitate the diagnosis of early stages of non-alcoholic liver disease thereby avoiding other invasive and expensive methods.
Revista:
CELLS
ISSN:
2073-4409
The aim of the present investigation was to identify putative miRNAs involved in the response to weight loss. Reverse-transcribed RNA isolated from white blood cells (WBCs) of a subpopulation from the Reduction of the Metabolic Syndrome in Navarra-Spain (RESMENA-S) study (low-responders (LR) and high-responders (HR)) was hybridized in a gene expression microarray. Moreover, miRNAs were sequenced by miRNA-Seq. It was found that miR-548q and miR-1185-1 were overexpressed in HR, both in the microarray and in the miRNA-Seq. A bioinformatic prediction of putative target genes of the selected miRNAs found that GSK3B, a putative target for miR-548q and miR-1185-1, was downregulated in HR. Particular 3 '-UTR binding regions of GSK3B were cloned downstream of the firefly luciferase gene. HEK-293T cells were co-transfected with either 0.25 mu g of empty pmiR-GLO or pmiR-GLO-548q-3 '-UTR/pmiR-GLO-1185-1-3 '-UTR, and 7.5 pmol of miR-548q/miR-1185-1 mimics, demonstrating that miR-1185-1 bound to the 3 '-UTR region of GSK3B. THP-1 cells were transfected with either 20/40 nM of miR-548q/miR-1185-1 mimics, evidencing that miR-1185-1inhibited the expression of the gene when transfected at doses of 20/40 nM, whereas miR-548q inhibited GSK3B expression at a dose of 40 nM. As a conclusion, miR-548q and miR-1185-1 levels in WBCs are biomarkers of response to weight-loss diets and could be involved in the regulation of the proinflammatory gene GSK3B.
Revista:
NUTRITION AND METABOLISM
ISSN:
1743-7075
Año:
2018
Vol.:
15
Págs.:
51
Background: Obesity and comorbidities such as non-alcoholic fatty liver disease (NAFLD) are major public health burdens. Alterations in lipid metabolism are involved in hepatic diseases. The objective of this study was to assess the influence of weight loss on lysophospholipid (LP) metabolism and liver status in obese subjects as well as to provide new evidence regarding the interaction of LP metabolism as a key factor in the onset and management of obesity-related diseases such as liver damage. Methods: Thirty-three subjects from the RESMENA (Reduction of Metabolic Syndrome in Navarra, NCT01087086) study were selected based on their Fatty Liver Index (FLI). Plasma lipid species (lysophosphatidilcholine: LPC, lysophosphatidilethanolamines: LPE and lysophosphatidylinositols: LPI specifically) were determined by LC-MS, while waist circumference (WC) and other non-invasive liver markers such as, FLI and BAAT scores as well as dietary records, anthropometrical measurements, body composition by DXA and other metabolic determinants were analyzed before and after a six-month hypocaloric nutritional intervention. Results: Computed Z-scores of total LP (LPC, LPE, and LPI) were significantly decreased after 6-months of following a hypocaloric diet. Specifically, LPC14:0, LPC15:0, LPC16:1, LPC18:4, LPC20:4, showed clear relationships with weight loss. Changes in FLI score, WC and BAAT score revealed associations with general changes in LPC score. Interestingly the BAAT score was statistically associated with the LPC score after adjustment for weight loss. Conclusion: The lipidomic LPC profile analysis revealed a generalized decrease in circulating lysophospholipids after weight loss. The involvement of particular LP in liver metabolism and obesity merit further attention, as some of these specific non-invasive liver markers were reduced independently of weight loss.
Revista:
CLINICAL NUTRITION
ISSN:
0261-5614
Año:
2018
Vol.:
37
N°:
5
Págs.:
1736 - 1743
Background & aims: To assess the possible association between a validated Dietary Inflammatory Index (DII) and specific dietary components with suitable non-invasive markers of liver status in overweight and obese subjects within the PREDIMED study. Methods: A cross-sectional study encompassing 794 randomized overweight and obese participants (mean +/- SD age: 67.0 +/- 5.0 y, 55% females) from the PREDIMED (PREvencion con Dleta MEDiterranea) trial was conducted. DII is a validated tool evaluating the effect of diet on six inflammatory biomarkers (IL-1b, IL-4, IL-6, IL-10, TNF-alpha and C-reactive protein). Furthermore, a validated 137-item food-frequency-questionnaire was used to obtain the information about the food intake. In addition, anthropometric measurements and several non-invasive markers of liver status were assessed and the Fatty Liver Index (FLI) score was calculated. Results: A higher DII and lower adherence to Mediterranean diet (MeDiet) were associated with a higher degree of liver damage (FLI > 60) in obese as compared to overweight participants. Furthermore, the DII score was positively associated with relevant non-invasive liver markers (ALT, AST, GGT and FLI) and directly affected FLI values. Interestingly, a positive correlation was observed between liver damage (>50th percentile FLI) and nutrients and foods linked to a pro-inflammatory dietary pattern. Conclusions: This study reinforced the concept that obesity is associated with liver damage and revealed that the consumption of a pro-inflammatory dietary pattern might contribute to obesity and fatty liver disease features. These data suggest that a well-designed precision diet including putative anti-inflammatory components could specifically prevent and ameliorate non-alcoholic fatty liver manifestations in addition to obesity. (C) 2017 Elsevier Ltd and European Society for Clinical Nutrition and Metabolism. All rights reserved.
Revista:
PLOS ONE
ISSN:
1932-6203
Background Non-coding RNAs (i.e., miRNAs) play a role in the development of obesity and related comorbidities and the regulation of body weight. Objective To identify candidate miRNA biomarkers throughout omics approaches in order to predict the response to specific weight-loss dietary treatments. Design Genomic DNA and cDNA isolated from white blood cells of a subset from the RESMENA nutritional intervention study (Low-responders (LR) vs High-responders (HR)) was hybridized in Infinium Human Methylation450 BeadChip and in Illumina Human HT-12 v4 gene expression BeadChips arrays respectively. A bioinformatic prediction of putative target sites of selected miRNAs was performed by applying miRBase algorithms. HEK-293T cells were co-transfected with expression vectors containing the 3'-UTR of candidate genes to validate the binding of miRNAs to its target sites. Results 134 miRNAs were differentially methylated between HR and LR in the methylation array, whereas 44 miRNAs were differentially expressed between both groups in the expression array. Specifically, miR-1237, miR-1976, miR-642, miR-636, miR-612 and miR-193B were simultaneously hypomethylated and overexpressed in HR. miR-612 and miR-1976 showed greatest differences in methylation and expression levels, respectively. The bioinformatic prediction revealed that TP53 was a putative target gene of miR-612 and CD40 of miR-1976. Moreover, TP53 was downregulated in the expression array when comparing HR vs LR expression levels adjusted by sex, diet, age and baseline weight, and CD40 showed a statistical trend. Furthermore, gene expression levels of TP53 and CD40 in white blood cells, when measured by qPCR, were also downregulated in HR. Finally, miR-612 and miR-1976 potently repressed TP53 and CD40 respectively by targeting its 3'-UTR regions. Conclusion miR-612 and miR-1976 levels could be prospective biomarkers of response to specific weight-loss diets and might regulate the gene expression of TP53 and CD40.
Revista:
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
ISSN:
1422-0067
Año:
2018
Vol.:
19
N°:
11
Págs.:
3662
Background: Dietary total antioxidant capacity (TAC), glycemic index (GI), and glycemic load (GL) are accepted indicators of diet quality, which have an effect on diet-disease relationships. The aim of this study was to evaluate potential associations of dietary TAC, GI, and GL with variables related to nutritive status and insulin resistance (IR) risk in cardiometabolic subjects. Methods: A total of 112 overweight or obese adults (age: 50.8 +/- 9 years old) were included in the trial. Dietary intake was assessed by a validated 137-item food frequency questionnaire (FFQ), which was also used to calculate the dietary TAC, GI, and GL. Anthropometrics, blood pressure, body composition by dual-energy X-ray absorptiometry (DXA), glycemic and lipid profiles, C-reactive protein (CRP), as well as fatty liver quantification by magnetic resonance imaging (MRI) were assessed. Results: Subjects with higher values of TAC had significantly lower circulating insulin concentration and homeostatic model assessment of insulin resistance (HOMA-IR). Participants with higher values of HOMA-IR showed significantly higher GI and GL. Correlation analyses showed relevant inverse associations of GI and GL with TAC. A regression model evidenced a relationship of HOMA-IR with TAC, GI, and GL. Conclusion: This data reinforces the concept that dietary TAC, GI, and GL are potential markers of diet quality, which have an impact on the susceptible population with a cardiometabolic risk profile.
Autores:
Ramos-Lopez, O.; Samblas, M.; Milagro FI; et al.
Revista:
NUTRITION RESEARCH
ISSN:
0271-5317
Año:
2017
Vol.:
50
Págs.:
53 - 62
Folate deficiency has been putatively implicated in the onset of diverse metabolic abnormalities, including insulin resistance, by altering epigenetic processes on key regulatory genes. The calcium/calmodulin-dependent protein kinase kinase 2 (CAMKK2) is involved in the regulation of critical metabolic processes such as adiposity and glucose homeostasis. This study hypothesized associations between low folate intakes and lower methylation levels of the CAMKK2 gene, with the presence of metabolic alterations in subjects with obesity. A cross-sectional ancillary study was conducted in obese subjects (n=47) from the RESMENA study (Spain). Fat mass was measured by dual-energy x-ray absorptiometry. Dietary intake and metabolic profile were assessed by validated methods. DNA methylation and gene expression in peripheral white blood cells were analyzed by microarray approaches. A total of 51 cytosine-phosphate-guanine sites were associated with folate intake (false discovery rate values < 0.0001), including one located in the 5' untranslated region of the CAMKK2 gene (Illumina ID, cg16942632), which was selected and separately analyzed. Subjects with total folate intake lower than 300¿g/d showed more fat mass (especially trunk fat), as well as statistically higher levels of glucose, insulin, homeostatic model assessment-insulin resistance (HOMA-IR) index, cortisol, and plasminogen activator inhibitor-1 than those consuming at least or more than 300¿g/d. Of note, folate deficiency was related to lower CAMKK2 methylation. Interestingly, CAMKK2 methylation negatively correlated with the HOMA-IR index. Furthermore, CAMKK2 expression directly correlated with HOMA-IR values. In summary, this study suggests associations between low folate intakes, lower CAMKK2 gene methylation, and insulin resistance in obese individuals.
Autores:
Malafarina, V.; Uriz-Otano, F.; Malafarina, C.; et al.
Revista:
MATURITAS
ISSN:
0378-5122
Año:
2017
Vol.:
101
Págs.:
42 - 50
BACKGROUND AND OBJECTIVES:
Functional deterioration and reduced mobility in elderly patients with a hip fracture are associated with a loss of both muscle mass and function (sarcopenia). The aim of this study was to assess whether oral nutritional supplementation (ONS) improves muscle mass and nutritional markers (BMI, proteins) in elderly patients with hip fracture.
METHODS:
Patients aged 65 years and over with hip fractures admitted to either of two rehabilitation facilities were included. Patients with diabetes, with Barthel index scores <40 prior to the fracture or with pathological fractures were excluded. A random-numbers generator was used to randomly allocate patients to the intervention group (IG) or the control group (CG). Those in the IG received a standard diet plus ONS in the form of two bottles a day of ß-hydroxy-ß-methylbutyrate (HMB), while those in the CG received a standard diet only. The intervention was not blinded. In order to assess changes in body mass index (BMI), anthropometric parameters were recorded at both admission and discharge. Patients' functional situation was evaluated using the Barthel index (BI) and the Functional Ambulation Categories (FAC) score. Muscle mass was assessed using bioelectrical impedance analysis, which allowed us to calculate appendicular lean mass (aLM). The outcome variable was the difference between aLM upon discharge, minus aLM upon admission (¿-aLM).
RESULTS:
Of the 107 randomised patients (IG n55, CG n52), 49 finished the study in the IG and 43 in the CG. BMI and aLM were stable in IG patients, whilst these parametres decreased in the CG. A significant difference was observed between the two groups (p<0.001, and p=0.020 respectively). The predictive factors for ¿-aLM were ONS (p=0.006), FAC prior to fracture (p<0.001) and BI prior to fracture (p=0.007). The concentration of proteins (p=0.007) and vitamin D (p.001) had increased more in the IG than in the CG.
CONCLUSION:
A diet enriched in HMB improves muscle mass, prevents the onset of sarcopenia and is associated with functional improvement in elderly patients with hip fractures. Orally administered nutritional supplements can help to prevent the onset of sarcopenic obesity.
Revista:
NUTRIENTS
ISSN:
2072-6643
Año:
2017
Vol.:
9
N°:
7
Págs.:
667
he prevalence of non-alcoholic-fatty-liver-disease (NAFLD) is associated with obesity, diabetes, and metabolic syndrome (MS). This study aimed to evaluate the influence of two energy-restricted diets on non-invasive markers and scores of liver damage in obese individuals with features of MS after six months of follow-up and to assess the role of fiber content in metabolic outcomes. Seventy obese individuals from the RESMENA (Reduction of Metabolic Syndrome in Navarra) study were evaluated at baseline and after six months of energy-restricted nutritional intervention (American Heart Association (AHA) and RESMENA dietary groups). Dietary records, anthropometrical data, body composition by dual energy X-ray absorptiometry (DXA), and routine laboratory measurements were analyzed by standardized methods. Regarding liver status, cytokeratin-18 fragments and several non-invasive scores of fatty liver were also assessed. The RESMENA strategy was a good and complementary alternative to AHA for the treatment of obesity-related comorbidities. Participants with higher insoluble fiber consumption (¿7.5 g/day) showed improvements in fatty liver index (FLI), hepatic steatosis index (HIS), and NAFLD liver fat score (NAFLD_LFS), while gamma-glutamyl transferase (GGT) and transaminases evidenced significant improvements as a result of fruit fiber consumption (¿8.8 g/day). Remarkably, a regression model evidenced a relationship between liver status and fiber from fruits. These results support the design of dietary patterns based on the consumption of insoluble fiber and fiber from fruits in the context of energy restriction for the management of obese patients suffering fatty liver disease.
Revista:
NUTRICION HOSPITALARIA
ISSN:
0212-1611
Año:
2017
Vol.:
34
N°:
4
Págs.:
759 - 760
El consumo de alimentos de origen vegetal está relacionado con diversos beneficios sobre la salud humana gracias a su contenido en vitaminas, minerales y antioxidantes, entre otros componentes. El cacao es un alimento rico en polifenoles, concretamente en flavanoles, en los que se han demostrado algunas propiedades saludables. En este sentido, el artículo de Orozco-Arbelaez y cols., publicado en este número de Nutrición Hospitalaria, aborda un tema de relevancia, y al mismo tiempo de cierta controversia, sobre el papel del consumo habitual de chocolate en el estado cognitivo de personas mayores. Los resultados de esta investigación señalan que puede existir una relación entre la ingesta de chocolate, en particular de chocolate negro, y una mejora de la función cognitiva en este colectivo por medio de un estudio transversal basado en los datos del estudio ENRICA con 2.056 individuos.
Revista:
INTERNATIONAL JOURNAL OF OBESITY
ISSN:
0307-0565
Año:
2017
Vol.:
41
N°:
10
Págs.:
1570 - 1578
BACKGROUND: Fibroblast growth factor 21 (FGF21) has been suggested to be an endocrine signal of nutritional status and an active regulator of metabolism. However, there is no agreement on the effect of weight-loss therapies on circulating levels of FGF21 in humans. OBJECTIVE: To assess FGF21 circulating levels in adiposity excess and after different weight-loss strategies prescribed in five different groups from four independent centers. SUBJECTS AND METHODS: Body composition, ketosis, insulin sensitivity and FGF21 were evaluated in 181 excess body weight and 14 normal-weight subjects. From the excess body weight patients, two independent groups (discovery cohort; n = 20 and validation cohort; n = 28) undertook a very low-calorie ketogenic (VLCK) diet, a third group followed a low-calorie (LC) diet (n = 84) and other two groups underwent bariatric surgery (discovery cohort; n = 24 and validation cohort; n = 25). The follow-up was 4 to 6 or 12 months, respectively. RESULTS: FGF21 levels were higher in excess body weight patients than in normal-weight subjects. The energy-restriction therapy to lose weight induced a significant decrease, with respect to baseline, in circulating levels of FGF21 (VLCK: -62.5 pg ml(-1) or -14.8 pg ml(-1) and LC diet: -67.9 pg ml(-1)). There were no differences in FGF21 levels between both energy-restriction treatments. On the contrary, after bariatric surgery morbidly obese patients showed a significant increase in FGF21, especially 1 month after surgery (148.8 pg ml-1 higher than baseline). The FGF21 differential changes occur concomitantly with a non-induced ketosis situation (0.66 +/- 0.56 mM) in bariatric surgery, and an improvement in adiposity and insulin sensitivity induced by the three therapies. CONCLUSIONS: FGF21 levels were reduced after energy-restricted treatments and severely increased after bariatric surgery, independently of the weight reduction magnitude, insulin sensitivity or ketosis. Therefore, FGF21 appears to be a marker of severe nutritional stress.
Revista:
JOURNAL OF NUTRITION
ISSN:
0022-3166
Año:
2016
Vol.:
146
N°:
4
Págs.:
897S - 904S
BACKGROUND:
Obesity has been associated with various health disorders, including psychological alterations. Cocoa consumption and weight management may produce a beneficial effect on these problems.
OBJECTIVE:
The purpose of this study was to investigate the effect of cocoa extract supplementation as part of an energy-restricted diet on psychological status and peripheral dopaminergic activity in overweight or obese middle-aged subjects.
METHODS:
In a 4-wk, double-blind, randomized, placebo-controlled parallel nutritional intervention, 22 men and 25 women [mean ± SD age: 57 ± 5 y; body mass index (kg/m2): 30.6 ± 2.3] were studied. After a 1-wk run-in period, volunteers consumed 15% energy-restricted diets; one-half of the volunteers were randomly assigned to receive ready-to-eat meals supplemented with 1.4 g cocoa extract/d (645 mg total polyphenols/d), whereas the rest of the volunteers received the same meals without cocoa supplementation. Plasma monoamines [dopamine, dopac, and homovanillic acid (HVA)], monoamine oxidase (MAO), and psychological status (anxiety and depressive symptoms) were analyzed in fasting participants at baseline and endpoint. Data were analyzed over time, and regression and correlation analyses were conducted to determine the relation between variables.
RESULTS:
Depressive symptoms decreased in both groups after the intervention (control: -9.4%, P < 0.001; cocoa: -6.3%, P = 0.008), but anxiety symptoms did not. The increase in plasma HVA was 11.5% greater in the cocoa group than in the control group (P = 0.016), but plasma dopamine, dopac, and MAO changes did not differ between groups. A negative relation between changes in depressive symptoms and changes in plasma HVA was observed in the cocoa group (ß = -0.39, P = 0.029). Moreover, the change in plasma dopamine was positively associated with the change in methyl-catechin-O-glucoronide in the cocoa-supplemented group (r = 0.69, P = 0.019).
CONCLUSION:
The intake of cocoa extract by participants consuming a 15% energy-restricted diet contributed to an increase in plasma HVA concentrations. This change was associated with a reduction in depressive symptoms, suggesting a potential effect of cocoa extract intake on this relation. The present results are secondary analyses of a clinical trial that was registered at www.clinicaltrials.gov as NCT01596309.
Revista:
NUTRITIONAL NEUROSCIENCE
ISSN:
1028-415X
Año:
2016
Vol.:
21
N°:
1
Págs.:
70 - 78
BACKGROUND:
Lifestyle, including dietary patterns, could involve specific factors participating in inflammation that confer a higher risk of suffering a stroke. However, little attention has been apparently given to habitual food consumption in patients suffering a cerebrovascular event.
OBJECTIVE:
To assess the influence of dietary habits as well as other lifestyle-related variables on the risk of suffering a stroke.
DESIGN:
A case-control study was designed. Fifty-one cases (age: 59.1¿±¿9.1y.o; BMI; 30.8¿±¿3.4¿kg/m2) and 51 controls (age: 61.1¿±¿9.1y.o; BMI; 30.4¿±¿3.6¿kg/m2) were enrolled in the study. Anthropometric and body composition variables were measured. Dietary information was obtained from a validated food frequency questionnaire. Physical activity and lifestyle-related factors were assessed. Blood samples were drawn.
RESULTS:
Patients suffering a stroke showed higher prevalence of diabetes (30 vs. 7.7%; P¿=¿0.020) and hypertension (74.5 vs. 40.3%; P¿<¿0.001) and were less physically active (36.7 vs. 66.6%; P¿=¿0.024) than controls. Patients registered worse glucose and lipid profiles, higher levels of hepatic biomarkers, and higher blood cell counts than controls. Stroked patients showed lower adherence to a statistically derived healthy dietary pattern than controls (23.5 vs. 42.3%; P¿=¿0.017). A logistic regression model was built up considering hypertension, diabetes, smoking, physical activity, adherence to a 'healthy dietary pattern' and C-reactive protein concentration. The final model strongly associated with the risk of suffering a stroke (R2: 44.6%; Pmodel¿<¿0.0001).
CONCLUSION:
Lifestyle variables such as physical activity, smoking habit, and a dietary pattern including foods with low inflammatory potential play an important role in the reduction of the risk of suffering a stroke.
Revista:
FOOD & NUTRITION RESEARCH
ISSN:
1654-6628
Año:
2016
Vol.:
60
Págs.:
30449
Background: Cardiometabolic profile is usually altered in obesity. Interestingly, the consumption of flavanol-rich foods might be protective against those metabolic alterations.
Objective: To evaluate the postprandial cardiometabolic effects after the acute consumption of cocoa extract before and after 4 weeks of its daily intake. Furthermore, the bioavailability of cocoa extract was investigated.
Design: Twenty-four overweight/obese middle-aged subjects participated in a 4-week intervention study. Half of the volunteers consumed a test meal enriched with 1.4 g of cocoa extract (415 mg flavanols), while the rest of the volunteers consumed the same meal without the cocoa extract (control group). Glucose and lipid profile, as well as blood pressure and cocoa metabolites in plasma, were assessed before and at 60, 120, and 180 min post-consumption, at the beginning of the study (Postprandial 1) and after following a 4-week 15% energy-restricted diet including meals containing or not containing the cocoa extract (Postprandial 2).
Results: In the Postprandial 1 test, the area under the curve (AUC) of systolic blood pressure (SBP) was significantly higher in the cocoa group compared with the control group (p=0.007), showing significant differences after 120 min of intake. However, no differences between groups were observed at Postprandial 2. Interestingly, the reduction of postprandial AUC of SBP (AUC_Postprandial 2-AUC_Postprandial 1) was higher in the cocoa group (p=0.016). Furthermore, cocoa-derived metabolites were detected in plasma of the cocoa group, while the absence or significantly lower amounts of metabolites were found in the control group.
Conclusions: The daily consumption of cocoa extract within an energy-restricted diet for 4 weeks resulted in a greater reduction of postprandial AUC of SBP compared with the effect of energy-restricted diet alone and independently of body weight loss. These results suggest the role of cocoa flavanols on postprandial blood pressure homeostasis.
Revista:
FOOD & NUTRITION RESEARCH
ISSN:
1654-6628
Año:
2016
Vol.:
60
Págs.:
30449
Background: Cardiometabolic profile is usually altered in obesity. Interestingly, the consumption of flavanol-rich foods might be protective against those metabolic alterations.
Objective: To evaluate the postprandial cardiometabolic effects after the acute consumption of cocoa extract before and after 4 weeks of its daily intake. Furthermore, the bioavailability of cocoa extract was investigated.
Design: Twenty-four overweight/obese middle-aged subjects participated in a 4-week intervention study. Half of the volunteers consumed a test meal enriched with 1.4 g of cocoa extract (415 mg flavanols), while the rest of the volunteers consumed the same meal without the cocoa extract (control group). Glucose and lipid profile, as well as blood pressure and cocoa metabolites in plasma, were assessed before and at 60, 120, and 180 min post-consumption, at the beginning of the study (Postprandial 1) and after following a 4-week 15% energy-restricted diet including meals containing or not containing the cocoa extract (Postprandial 2).
Results: In the Postprandial 1 test, the area under the curve (AUC) of systolic blood pressure (SBP) was significantly higher in the cocoa group compared with the control group (p = 0.007), showing significant differences after 120 min of intake. However, no differences between groups were observed at Postprandial 2. Interestingly, the reduction of postprandial AUC of SBP (AUC_Postprandial 2-AUC_Postprandial 1) was higher in the cocoa group (p = 0.016). Furthermore, cocoa-derived metabolites were detected in plasma of the cocoa group, while the absence or significantly lower amounts of metabolites were found in the control group.
Conclusions: The daily consumption of cocoa extract within an energy-restricted diet for 4 weeks resulted in a greater reduction of postprandial AUC of SBP compared with the effect of energy-restricted diet alone and independently of body weight loss. These results suggest the role of cocoa flavanols on postprandial blood pressure homeostasis.
Autores:
Nicoletti, C. F.; Nonino, C. B.; de Oliveira, B. A.; et al.
Revista:
OBESITY SURGERY
ISSN:
0960-8923
Año:
2016
Vol.:
26
N°:
3
Págs.:
603 - 611
Weight loss can be influenced by genetic factors and epigenetic mechanisms that participate in the regulation of body weight. This study aimed to investigate whether the weight loss induced by two different obesity treatments (energy restriction or bariatric surgery) may affect global DNA methylation (LINE-1) and hydroxymethylation profile, as well as the methylation patterns in inflammatory genes.
This study encompassed women from three differents groups: 1. control group (n = 9), normal weight individuals; 2. energy restriction group (n = 22), obese patients following an energy-restricted Mediterranean-based dietary treatment (RESMENA); and 3. bariatric surgery group (n = 14), obese patients underwent a hypocaloric diet followed by bariatric surgery. Anthropometric measurements and 12-h fasting blood samples were collected before the interventions and after 6 months. Lipid and glucose biomarkers, global hydroxymethylation (by ELISA), LINE-1, SERPINE-1, and IL-6 (by MS-HRM) methylation levels were assessed in all participants.
Baseline LINE-1 methylation was associated with serum glucose levels whereas baseline hydroxymethylation was associated with BMI, waist circumference, total cholesterol, and triglycerides. LINE-1 and SERPINE-1 methylation levels did not change after weight loss, whereas IL-6 methylation increased after energy restriction and decreased in the bariatric surgery group. An association between SERPINE-1 methylation and weight loss responses was found.
Global DNA methylation and hydroxymethylation might be biomarkers for obesity and associated comorbidities. Depending on the obesity treatment (diet or surgery), the DNA methylation patterns behave differently. Baseline SERPINE-1 methylation may be a predictor of weight loss values after bariatric surgery.
Revista:
NUTRITION
ISSN:
0550-404X
Año:
2016
Vol.:
32
N°:
1
Págs.:
48 - 55
Objectives The aim of this study was to evaluate the influence of a dietary strategy for weight loss (the RESMENA [reduction of metabolic syndrome in Navarra, Spain] diet) on the expression of inflammation-related microRNAS (miRNAs) and genes in white blood cells (WBC) from individuals with metabolic syndrome (MetS).
Methods The clinical, anthropometric, and biochemical characteristics of 40 individuals with MetS (20 men and 20 women; age: 48.84 ± 10.02 y; body mass index: 35.41 ± 4.42 kg/m2) were evaluated before and after an 8-wk hypocaloric diet based on the Mediterranean dietary pattern. Nutrient intake was assessed with a food frequency questionnaire and 48-h weighed food records. Total RNA was isolated from WBC and the expression of some inflammation-related miRNAs and mRNAs (IL-6, TNF-¿, ICAM-1, IL-18, SERPINE1, VCAM-1, GAPDH) was assessed by quantitative polymerase chain reaction.
Results The RESMENA nutritional intervention improved most anthropometric and biochemical features. The expression of miR-155-3p was decreased in WBC, whereas Let-7b was strongly upregulated as a consequence of the dietary treatment. However, they were not correlated with the expression of the proinflammatory genes in the same cells. The changes in the expression of let-7b, miR-125b, miR-130a, miR-132-3p, and miR-422b were significantly associated with changes in diet quality when assessed by the Healthy Eating Index. Moreover, low consumption of lipids and saturated fat (g/d) were associated with higher expression of let-7b after the nutritional intervention.
Conclusions The Mediterranean-based nutritional intervention was able to induce changes in the expression of let-7b and miR-155-3p in WBC from patients with MetS after 8 wk. Moreover, the quality of the diet has an important effect on the miRNAs expression changes. These results should be highlighted because these miRNAs have been associated with inflammatory gene regulation and important human diseases.
Autores:
Ferguson, L. R.; De-Caterina, R.; Görman, U.; et al.
Revista:
JOURNAL OF NUTRIGENETICS AND NUTRIGENOMICS
ISSN:
1661-6499
Año:
2016
Vol.:
9
N°:
1
Págs.:
12 - 27
Diversity in the genetic profile between individuals and specific ethnic groups affects nutrient requirements, metabolism and response to nutritional and dietary interventions. Indeed, individuals respond differently to lifestyle interventions (diet, physical activity, smoking, etc.). The sequencing of the human genome and subsequent increased knowledge regarding human genetic variation is contributing to the emergence of personalized nutrition. These advances in genetic science are raising numerous questions regarding the mode that precision nutrition can contribute solutions to emerging problems in public health, by reducing the risk and prevalence of nutrition-related diseases. Current views on personalized nutrition encompass omics technologies (nutrigenomics, transcriptomics, epigenomics, foodomics, metabolomics, metagenomics, etc.), functional food development and challenges related to legal and ethical aspects, application in clinical practice, and population scope, in terms of guidelines and epidemiological factors. In this context, precision nutrition can be considered as occurring at three levels: (1) conventional nutrition based on general guidelines for population groups by age, gender and social determinants; (2) individualized nutrition that adds phenotypic information about the person's current nutritional status (e.g. anthropometry, biochemical and metabolic analysis, physical activity, among others), and (3) genotype-directed nutrition based on rare or common gene variation. Research and appropriate translation into medical practice and dietary recommendations must be based on a solid foundation of knowledge derived from studies on nutrigenetics and nutrigenomics. A scientific society, such as the International Society of Nutrigenetics/Nutrigenomics (ISNN), internationally devoted to the study of nutrigenetics/nutrigenomics, can indeed serve the commendable roles of (1) promoting science and favoring scientific communication and (2) permanently working as a 'clearing house' to prevent disqualifying logical jumps, correct or stop unwarranted claims, and prevent the creation of unwarranted expectations in patients and in the general public. In this statement, we are focusing on the scientific aspects of disciplines covering nutrigenetics and nutrigenomics issues. Genetic screening and the ethical, legal, social and economic aspects will be dealt with in subsequent statements of the Society.
Revista:
JOURNAL OF NUTRIGENETICS AND NUTRIGENOMICS
ISSN:
1661-6499
Año:
2016
Vol.:
9
N°:
2 - 4
Págs.:
95 - 105
BACKGROUND/AIM:
This study hypothesized an association between healthy dietary patterns, hypermethylation of the tumor necrosis factor-¿ (TNF-¿) promoter and decreased risk of metabolic changes.
METHODS:
Forty normal-weight young women were involved in this cross-sectional study. DNA was isolated from white blood cells, and CpG site methylation in TNF-¿ was analyzed by Sequenom EpiTyper. The quality of the diet was assessed by Healthy Eating Index (HEI-2005).
RESULTS:
Contradicting our hypothesis, HEI-2005 score was negatively associated with CpG5 (r = -0.460, p = 0.003) and TNF-¿ total methylation (r = -0.355, p = 0.026). A higher intake of fruits was related to lower insulin, HOMA-IR, and TNF-¿ methylation. No other dietary pattern was related to TNF-¿ methylation. TNF-¿ total methylation correlated positively with systolic blood pressure (r = 0.323; p = 0.042) and CpG5 methylation with body mass index (r = 0.333, p = 0.036). Furthermore, fiber intake was negatively associated with the CpG5 (r = -0.324, p = 0.041) and TNF-¿ total methylation (r = -0.434, p = 0.005), whereas vitamin C intake was negatively associated with TNF-¿ total methylation (r = -0.411, p = 0.009). Intakes of apples and citrus fruits were negatively associated with TNF-¿ total methylation.
CONCLUSION:
A healthy dietary pattern and higher fruit intake (particularly apples and citrus fruits) were related to better glucose tolerance in healthy subjects, which could be mediated by lower TNF-¿ methylation.
Revista:
INTERNATIONAL JOURNAL OF OBESITY
ISSN:
0307-0565
Año:
2016
Vol.:
40
N°:
3
Págs.:
403 - 410
The present research evaluated circulating betatrophin levels in obese patients with metabolic syndrome features under energy-restricted weight-loss programs and in normal weight in order to stablish the putative interplay between the levels of this hormone, diet and metabolic risk factors linked to obesity and associated comorbidities.
Revista:
REDOX REPORT
ISSN:
1351-0002
Año:
2016
Vol.:
21
N°:
2
Págs.:
67 - 74
OBJECTIVES:
Epigenetic markers, and in particular DNA methylation, have come to the fore as new tools in the personalization of the treatment of obesity and its comorbidities. The objectives of the current investigation were to identify epigenetic biomarkers that might be predictive of response to a weight-loss intervention, and to better understand the influence of certain nutrients (particularly antioxidants) on the epigenome.
METHODS:
Global DNA (LINE-1) methylation levels were assessed in peripheral blood mononuclear cells (PBMCs) from 96 obese volunteers of the Metabolic Syndrome Reduction in Navarra study, using a methylation-sensitive high resolution melting approach after bisulfite modification.
RESULTS:
Baseline LINE-1 DNA methylation levels were significantly higher (5.41%) in high responders (>8% of weight loss) as compared to low responders (<8%) to the energy-restricted treatment. Indeed, a LINE-1 methylation higher than 84.15% may be predictive of a high response to the hypocaloric diet. Statistically significant correlations were found between LINE-1 baseline DNA methylation levels and the response to the treatment involving total fat mass and body weight. Furthermore, LINE-1 baseline methylation levels positively correlated with baseline dietary total antioxidant capacity (TAC).
DISCUSSION:
LINE-1 methylation levels in PBMCs might be used to predict response to a dietary weight-loss intervention, and seem to be related to the dietary TAC.
Revista:
FOOD & FUNCTION
ISSN:
2042-6496
Año:
2016
Vol.:
7
N°:
4
Págs.:
1924 - 1931
Metabolomics is used to assess the compliance and bioavailability of food components, as well as to evaluate the metabolic changes associated with food consumption. This study aimed to analyze the effect of consuming ready-to-eat meals containing a cocoa extract, within an energy restricted diet on urinary metabolomic changes. Fifty middle-aged volunteers [30.6 (2.3) kg m(-2)] participated in a 4-week randomised, parallel and double-blind study. Half consumed meals supplemented with 1.4 g of cocoa extract (645 mg polyphenols) while the remaining subjects received meals without cocoa supplementation. Ready-to-eat meals were included within a 15% energy restricted diet. Urine samples (24 h) were collected at baseline and after 4 weeks and were analyzed by high-performance-liquid chromatography-time-of-flight-mass-spectrometry (HPLC-TOF-MS) in negative and positive ionization modes followed by multivariate analysis. The relationship between urinary metabolites was evaluated by the Spearman correlation test. Interestingly, the principal component analysis discriminated among the baseline group, control group at the endpoint and cocoa group at the endpoint (p < 0.01), although in the positive ionization mode the baseline and control groups were not well distinguished. Metabolites were related to theobromine metabolism (3-methylxanthine and 3-methyluric acid), food processing (L-beta-aspartyl-L-phenylalanine), flavonoids (2,5,7,3', 4'-pentahydroxyflavanone-5-O-glucoside and 7,4'-dimethoxy-6-C-methylflavanone), catecholamine (3-methoxy-4-hydroxyphenylglycol-sulphate) and endogenous metabolism (uridine monophosphate). These metabolites were present in higher (p < 0.001) amounts in the cocoa group. 3-Methylxanthine and L-beta-aspartyl-L-phenylalanine were confirmed with standards. Interestingly, 3-methoxy-4-hydroxyphenylglycol-sulphate was positively correlated with 3-methylxanthine (rho = 0.552; p < 0.001) and 7,4'-dimethoxy-6-C-methylflavanone (rho = 447; p = 0.002). In conclusion, the metabolomic approach supported the compliance of the volunteers with the intervention and suggested the bioavailability of cocoa compounds within the meals.
Revista:
MUTAGENESIS
ISSN:
0267-8357
Año:
2015
Vol.:
30
N°:
1
Págs.:
139 - 146
Nutrient excess and unbalanced diets can result in overproduction of reactive oxygen species (ROS), which are associated with oxidative stress. Cocoa extract contains antioxidants that inhibit the harmful effects of ROS. This trial analysed the effect of cocoa extract consumption integrated as a bioactive compound into ready-to-eat meals, on oxidative stress at the level of DNA in overweight/obese subjects. Fifty volunteers [57.26(5.24) years, 30.59(2.33)kg/m(2)] participated in a 4-week double-blind, randomised, placebo-controlled parallel nutritional intervention. Half of the volunteers received meals supplemented with 1.4 g/day cocoa extract, while the other half received control meals, both within a 15% energy restriction diet. Lymphocytes were isolated and endogenous strand breaks, oxidised bases and resistance to H2O2-induced damage were measured by the comet assay. The intake of ready-to-eat meals supplemented with cocoa extract did not show relevant changes in the oxidative status of DNA. However, in the cocoa group, oxidised bases negatively correlated with methyl epicatechin-O-sulphate (r = -0.76; P = -0.007) and epicatechin sulphate (r = -0.61; P = -0.046). When volunteers of both groups were analysed together, a marginal decrease (P = 0.072) in oxidised bases was observed, which attributed to weight loss. Subjects who started the intervention with higher levels of damage showed a greater reduction in oxidised bases after 4 weeks (P = 0.040) compared to those who had lower baseline levels. In conclusion, even if 1.4 g of cocoa supplementation for 4 weeks did not show notable changes in terms of antioxidant status of DNA, the energy restriction showed a slightly decrease in oxidised bases and this was seen to a greater extent in subjects who started the intervention with higher levels of damage. On the other hand, the inverse associations found between oxidised bases and some cocoa-derived metabolites suggest that a protective effect might be seen in a longer period of time or in subjects with higher baseline DNA damage.
Revista:
NUTRITIONAL NEUROSCIENCE
ISSN:
1028-415X
Año:
2015
Vol.:
18
N°:
3
Págs.:
137 - 144
Background/objective The interplay between individual's mood fluctuations and nutrition has important health implications. However, little information is available on the relationship between dietary intake and mood state in a population with metabolic syndrome (MetS). The aim of the present study was to evaluate the association between dietary intake and mood state in subjects with MetS. Methods This cross-sectional study was based on the baseline data of 84 volunteers (mean age 49 ± 1 years) recruited into the Metabolic Syndrome Reduction in Navarra-Spain (RESMENA-S) study. Mood state was determined using a mood thermometer visual analogue scale. The dietary intake was assessed with a 48-hours weighted food record, from which a Healthy Eating Index (HEI) score was obtained. Anthropometrical measurements and biochemical parameters were also analysed. Results At baseline, a positive association between mood thermometer and HEI was observed. Among the 10 HEI components, vegetables, fruits, calories from lipids, saturated fatty acids, and dietary variety were related with higher mood. Moreover, those participants who consumed more water, fibre, vitamin B6, ascorbic acid, tryptophan, magnesium, and selenium have higher mood. Discussion In conclusion, an association between both the overall dietary pattern and isolated nutrients with mood state was observed. The analyses of both dietary patterns and specific nutrients are important to determine the association between mental disorders and dietary intake.
Revista:
JOURNAL OF FUNCTIONAL FOODS
ISSN:
1756-4646
Año:
2015
Vol.:
12
Págs.:
319 - 331
The effects on body composition and cardiovascular risk of functional meat products, within a balanced diet, were investigated in a randomized, double-blind, 10-week nutritional intervention. Fifty-four adults were distributed in three groups, consuming 600¿g/week of a reference meat product (RP), optimized nutritional product-1 (ONP-1), lower in fat, or ONP-2, n-3 PUFA enriched. Measures were performed at baseline and the endpoint. All groups lost fat mass, being subjects on the ONP-2 group those with more fat loss (p¿=¿0.042) compared to the other groups. Correlation analyses evidenced significant associations between alpha-linolenic acid (ALA) intake and plasma levels (p¿=¿0.001), as well as between plasma levels and fat mass changes (p¿=¿0.03). The inclusion of optimized meat products, with n-3 PUFA (Polyunsaturated fatty acids) and an improved nutritional profile may be a healthy strategy, as a functional food, within an isocalorically controlled diet. ALA consumption may play a role in body composition changes.
Revista:
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
ISSN:
1422-0067
Año:
2015
Vol.:
16
N°:
8
Págs.:
16816 - 16832
The aim of this study was to evaluate whether genome-wide levels of DNA methylation are associated with age and the health risks of obesity (HRO); defined according to BMI categories as "Low HRO" (overweight and class 1 obesity) versus "High HRO" (class 2 and class 3 obesity). Anthropometric measurements were assessed in a subsample of 48 volunteers from the Metabolic Syndrome Reduction in Navarra (RESMENA) study and 24 women from another independent study, Effects of Lipoic Acid and Eicosapentaenoic Acid in Human Obesity (OBEPALIP study). In the pooled population; the methylation levels of 55 CpG sites were significantly associated with age after Benjamini-Hochberg correction. In addition, DNA methylation of three CpG sites located in ELOVL2; HOXC4 and PI4KB were further negatively associated with their mRNA levels. Although no differentially methylated CpG sites were identified in relation to HRO after multiple testing correction; several nominally significant CpG sites were identified in genes related to insulin signaling; energy and lipid metabolism. Moreover, statistically significant associations between BMI or mRNA levels and two HRO-related CpG sites located in GPR133 and ITGB5 are reported. As a conclusion, these findings from two Spanish cohorts add knowledge about the important role of DNA methylation in the age-related regulation of gene expression. In addition; a relevant influence of age on DNA methylation in white blood cells was found, as well as, on a trend level, novel associations between DNA methylation and obesity.
Revista:
MOLECULAR NUTRITION AND FOOD RESEARCH
ISSN:
1613-4125
Año:
2015
Vol.:
59
N°:
4
Págs.:
711 - 728
Adherence to the Mediterranean diet has been associated with a reduced risk of metabolic syndrome (MetS). Metabolomics approach may contribute to identify beneficial associations of metabolic changes affected by Mediterranean diet-based interventions with inflammatory and oxidative-stress markers related to the etiology and development of the MetS.
Methods and Results: Liquid chromatography coupled to quadrupole-time of flight-MS metabolic profiling was applied to plasma from a 6-month randomized intervention with two sequential periods, a 2-month nutritional-learning intervention period, and a 4-month self-control period, with two energy-restricted diets; the RESMENA diet (based on the Mediterranean dietary pattern) and the Control diet (based on the American Heart Association guidelines), in 72 subjects with a high BMI and at least two features of MetS. The major contributing biomarkers of each sequential period were lipids, mainly phospholipids and lysophospholipids. Dependency network analysis showed a different pattern of associations between metabolic changes and clinical variables after 2 and 6 month of intervention, with a highly interconnected network during the nutritional-learning intervention period of the study.
Conclusion: The 2-month RESMENA diet produced significant changes in the plasma metabolic profile of subjects with MetS features. However, at the end of the 6-month study, most of the associations between metabolic and clinical variables disappeared; suggesting that adherence to healthy dietary habits had declined during the self-control period.
Revista:
CLINICAL NUTRITION
ISSN:
0261-5614
Año:
2015
Vol.:
34
N°:
5
Págs.:
1010 - 1017
Background & aims: The aim of this study is to further clarify the role of plasma 25(OH)D concentration after a weight-lowering nutritional intervention on body composition, blood pressure and inflammatory biomarkers in overweight/obese middle-aged subjects.
Methods: This longitudinal research encompassed a total of 50 subjects [57.26 (5.24) year], who were under a 15% energy restricted diet for 4 weeks. Anthropometric and body composition variables, blood routine, inflammatory markers as well as 25(OH)D were analysed.
Results: Circulating 25(OH)D levels [12.13(+/- 17.61%)] increased while anthropometric, body composition, routine blood markers as well as the concentration of TNF-alpha, C-reactive protein and Lp-PLA2 were significantly reduced after the intervention. Multiple linear regression analyses evidenced that Delta 25(OH) D increase was linked to the decrease in weight, adiposity, SBP and IL-6 levels. Moreover, a relationship was found between Delta 25(OH)D, Mat mass (r = -0.405; p = 0.007), ASBP (r = -0.355; p = 0.021) and Delta IL6 (r = -0.386; p = 0.014). On the other hand, a higher increase in 25(OH)D was accompanied by reductions in weight, BMI, SBP, IL-6 and an increase in bone mineral concentration (p < 0.05). Interestingly, higher levels of 25(OH)D at the endpoint, showed a significantly higher decrease in weight, BMI and total fat mass.
Conclusions: The increase in plasma 25(OH)D level is linked with the decrease in SBP and adiposity in middle-aged subjects after a weight-loss intervention. Therefore, 25(OH)D assessment is a potential marker to be accounted in metabolic measures related to blood pressure, adiposity and inflammation in obesity management.
Revista:
JOURNAL OF PHYSIOLOGY AND BIOCHEMISTRY
ISSN:
1138-7548
Año:
2015
Vol.:
71
N°:
3
Págs.:
527 - 535
Revista:
ANNALS OF NUTRITION AND METABOLISM
ISSN:
0250-6807
Año:
2015
Vol.:
66
N°:
1
Págs.:
1 - 9
The objective of this study was to examine whether 7 SNPs previously associated with obesity-related traits that add or remove potential sites of DNA methylation are accompanied by differential DNA methylation and subsequently affect adiposity variables or body weight reduction in WBC from obese subjects under an energy-restricted program.
Material and Methods: Anthropometric measurements were assessed in 47 volunteers recruited within the RESMENA study (Spain). At baseline, DNA from white blood cells was isolated and 7 obesity-related trait CpG-SNPs were genotyped by TaqMan-PCR. Then, methylation levels of CpG-SNP sites were quantified by MassArray® EpiTyper¿ or MS-HRM approaches.
Results: Differential DNA methylation levels were observed by genotypes in all of the CpG-SNPs analyzed. The FTO and BDNF methylation levels were further correlated with baseline body weight and, BDNF mRNA levels and body weight change, respectively. Moreover, the rs7359397 (SH2B1) was associated with the body weight, body mass index, and truncal fat mass reduction.
Conclusions: Our results reveal the interaction of epigenetic and genetic variations in CpG-SNPs, especially in BDNF and SH2B1 genes, and how allele-specific methylation may contribute to elucidate the possible molecular mechanisms as these SNPs are affecting the decrease of mRNA levels and contributing to a lower body weight reduction.
Revista:
NUTRITION JOURNAL
ISSN:
1475-2891
Año:
2014
Vol.:
13
N°:
1
Págs.:
36
Metabolic syndrome (MetS) and depression have become two prevalent diseases worldwide, whose interaction needs further investigation. Dietary treatment for weight loss in patients with MetS may improve depressive manifestations, however, the precise interactive pathways remain uncertain. Therefore, the aim of this study was to examine the effects of a hypocaloric diet designed to reduce MetS features on self-perceived depression and the possible underlying factors.
METHODS:
Sixty subjects (Age: 50 ± 1 y; BMI: 36.1 ± 0.6 kg/m(2)) with MetS were selected from the RESMENA study (control and intervention) after they completed the 6-months hypocaloric treatment and rated for depressive symptoms using the Beck Depression Inventory (BDI). Anthropometric and biochemical measurements including leptin, C-reactive protein (CRP) and insulin levels were evaluated.
RESULTS:
Depressive symptoms decreased during the weight loss intervention, with no differences between both dietary groups (control group -4.2 ± 0.8 vs RESMENA group -3.2 ± 0.6, P = 0.490). The number of criteria of the MetS was higher among subjects with more somatic-related depressive symptoms at baseline (B = 1.032, P-trend = 0.017). After six months of dietary treatment, body weight decreased in all subjects (-8.7%; confidence interval (95% CI)¿= 7.0-9.7) and also self-perceived depression (-37.9%; 95% CI = 2.7-4.9), as well as circulating leptin (-20.1%; 95% CI = 1.8-6.8), CRP (-42.8%; 95% CI = 0.6-3.0) and insulin (-37.7%; 95% CI = 4.1-7.2) concentrations. The decrease in BDI was significantly associated with declines in body fat mass (B = 0.34, 95% CI = 0.11-0.56) and also with the decrease in leptin (B = 0.16, 95% CI = 0.04-0.28) and CRP (B = 0.24, 95% CI = 0.01-0.46) concentrations.
CONCLUSIONS:
The decrease in depressive manifestations after a weight loss intervention was related with adiposity, CRP and leptin in subjects with MetS.
Revista:
PHYTOMEDICINE
ISSN:
0944-7113
Año:
2014
Vol.:
21
N°:
10
Págs.:
1162 - 1169
PURPOSE: The aim of this study was to investigate the potential benefits of an extract obtained from seeds/fruits of an Oleaceae (Fraxinus excelsior L.) on glucose homeostasis and associated metabolic markers in non-diabetic overweight/obese subjects. MATERIALS AND METHODS: This study was performed in 22 participants (50-80 years-old; BMI 31.0kg/m(2)). The design was a longitudinal, randomized, crossover, double-blind, placebo-controlled 7-week nutritional intervention. The participants received daily 3 capsules each containing either 333mg of an extract from Fraxinus excelsior L. seeds (Glucevia((R))) or placebo capsules (control) in a random order for 3 weeks with 1 week of washout between treatments. Moreover, they followed a balanced covert energy-restricted diet (-15% energy). All variables were measured at the beginning and at the end of each period. RESULTS: Compared to baseline, the administration of 1g of Glucevia((R)) for 3 weeks resulted in significantly lower incremental glucose area under the curve (-28.2%; p<0.01), and significantly lower 2h blood glucose values (-14%; p<0.01) following an oral glucose tolerance test. No significant changes were found in the control group (-7.9% AUC, -1.6% 2h blood glucose). Furthermore, significant differences were found between responses in the control and Glucevia((R)) groups with respect to serum fructosamine and plasma glucagon levels (p<0.01 and p<0.05, respectively). Interestingly, administration of Glucevia((R)) significantly increased the adiponectin:leptin ratio (p<0.05) and decreased fat mass (p<0.01) compared to control (p<0.05). CONCLUSION: The administration of an extract from Fraxinus excelsior L. seeds/fruits in combination with a moderate hypocaloric diet may be beneficial in metabolic disturbances linked to impaired glucose tolerance, obesity, insulin resistance and inflammatory status, specifically in older adults.
Revista:
BRITISH JOURNAL OF NUTRITION
ISSN:
0007-1145
Año:
2014
Vol.:
111
N°:
4
Págs.:
643 - 652
The long-term effects of dietary strategies designed to combat the metabolic syndrome (MetS) remain unknown. The present study evaluated the effectiveness of a new dietary strategy based on macronutrient distribution, antioxidant capacity and meal frequency (MEtabolic Syndrome REduction in NAvarra (RESMENA) diet) for the treatment of the MetS when compared with the American Heart Association guidelines, used as Control. Subjects with the MetS (fifty-two men and forty-one women, age 49 (se 1) years, BMI 36·11 (se 0·5) kg/m2) were randomly assigned to one of two dietary groups. After a 2-month nutritional-learning intervention period, during which a nutritional assessment was made for the participants every 15 d, a 4-month self-control period began. No significant differences were found between the groups concerning anthropometry, but only the RESMENA group exhibited a significant decrease in body weight ( - 1·7 %; P= 0·018), BMI ( - 1·7 %; P= 0·019), waist circumference ( - 1·8 %; P= 0·021), waist:hip ratio ( - 1·4 %; P= 0·035) and android fat mass ( - 6·9 %; P= 0·008). The RESMENA group exhibited a significant decrease in alanine aminotransferase and aspartate aminotransferase (AST) concentrations ( - 26·8 %; P= 0·008 and - 14·0 %; P= 0·018, respectively), while the Control group exhibited a significant increase in glucose (7·9 %; P= 0·011), AST (11·3 %; P= 0·045) and uric acid (9·0 %; P< 0·001) concentrations. LDL-cholesterol (LDL-C) concentrations were increased (Control group: 34·4 %; P< 0·001 and RESMENA group: 33·8 %; P< 0·001), but interestingly so were the LDL-C:apoB ratio (Control group: 28·7 %; P< 0·001, RESMENA group: 17·1 %; P= 0·009) and HDL-cholesterol concentrations (Control group: 21·1 %; P< 0·001, RESMENA group: 8·7; P= 0·001). Fibre was the dietary component that most contributed to the improvement of anthropometry, while body-weight loss explained changes in some biochemical markers. In conclusion, the RESMENA diet is a good long-term dietary treatment for the MetS.
Revista:
EXCLI JOURNAL
ISSN:
1611-2156
Año:
2014
Vol.:
13
Págs.:
416 - 426
Revista:
METABOLISM-CLINICAL AND EXPERIMENTAL
ISSN:
0026-0495
Año:
2014
Vol.:
63
N°:
4
Págs.:
520 - 531
Objective Weight regain is associated with the promotion of insulin resistance. The newly discovered myokine irisin, which was proposed to be involved in the management of insulin sensitivity, could play a role in this process. This study aimed to investigate the association between irisin and reduced insulin sensitivity induced by weight regain.
Materials/Methods Insulin sensitivity was evaluated according to the homeostasis model assessment of insulin resistance (HOMA-IR) in 136 obese patients who followed an eight-week hypocaloric diet (30% reduced energy expenditure) to lose weight and was re-evaluated four or six months after treatment. Irisin plasma levels, as well as the levels of leptin, adiponectin, ghrelin and TNF-¿, were quantified in a sub-cohort (n=73) from the initially studied patients at baseline (T0), at the diet endpoint (T1) and after the follow-up period (T2).
Results After a successful dietary intervention to lose weight, 50% of the patients who regained the lost weight during the follow-up period were categorized as insulin resistant (HOMA-IR¿2.5) compared with only 25% of patients who maintained the weight loss (p=0.018). Importantly, in addition to the well-studied hormones leptin and adiponectin, irisin plasma levels were statistically associated with several risk factors for insulin resistance. Indeed, the increased risk of insulin resistance during the follow-up period was related to high irisin levels at baseline (odds ratio=4.2; p=0.039).
Conclusions Circulating irisin predicts the insulin resistance onset in association with weight regain. Therefore, irisin could be secreted as an adaptive response to counteract the deleterious effect of excess adiposity on glucose homeostasis.
Revista:
NUTRIENTS
ISSN:
2072-6643
Año:
2014
Vol.:
6
N°:
6
Págs.:
2387 - 2403
Understanding the regulation of gene activities depending on DNA methylation has been the subject of much recent study. However, although polymorphisms of the HTR2A gene have been associated with both obesity and psychiatric disorders, the role of HTR2A gene methylation in these illnesses remains uncertain. The aim of this study was to evaluate the association of HTR2A gene promoter methylation levels in white blood cells (WBC) with obesity traits and depressive symptoms in individuals with metabolic syndrome (MetS) enrolled in a behavioural weight loss programme. Analyses were based on 41 volunteers (mean age 49 +/- 1 year) recruited within the RESMENA study. Depressive symptoms (as determined using the Beck Depression Inventory), anthropometric and biochemical measurements were analysed at the beginning and after six months of weight loss treatment. At baseline, DNA from WBC was isolated and cytosine methylation in the HTR2A gene promoter was quantified by a microarray approach. In the whole-study sample, a positive association of HTR2A gene methylation with waist circumference and insulin levels was detected at baseline. Obesity measures significantly improved after six months of dietary treatment, where a lower mean HTR2A gene methylation at baseline was associated with major reductions in body weight, BMI and fat mass after the treatment. Moreover, mean HTR2A gene methylation at baseline significantly predicted the decrease in depressive symptoms after the weight loss treatment. In conclusion, this study provides newer evidence that hypermethylation of the HTR2A gene in WBC at baseline is significantly associated with a worse response to a weight-loss intervention and with a lower decrease in depressive symptoms after the dietary treatment in subjects with MetS.
Revista:
EUROPEAN JOURNAL OF NUTRITION
ISSN:
1436-6207
Año:
2014
Vol.:
53
N°:
1
Págs.:
201 - 210
Purpose: Dietary food composition influences postprandial glucose homeostasis. Thus, the objective was to investigate the effects of an acute intake of three different types of strawberry jam, differing in carbohydrate and antioxidants content, on postprandial glucose metabolism, lipid profile, antioxidant status, and satiety. Methods: Sixteen healthy adults participated in a randomized, crossover, double-blind study with three arms, receiving 60 g of three different strawberry jams. Blood samples were collected at fasting and at 30, 60, 90, and 120 min after its intake. Blood analyses were performed with validated procedures and satiety was estimated with visual analogue scale (VAS). Results: Blood glucose concentrations were maintained at normal values and without peaks within the 2 h after consumption of low-sugar jams. However, blood glucose and insulin were significantly higher at 30 and 60 min after high-sugar (HS) jam intake versus both low-sugar jams. Furthermore, HS jam produced more satisfaction at short time, but decreased as soon as blood glucose concentration began to decrease. Moreover, HS ingestion produced lower free fatty acid levels ( p < 0.05) throughout the trial with respect both the low-sugar jams. However, no additional benefits on oxidative status (malondialdehyde, glutathione peroxidase, total antioxidant capacity, and uric acid), glucose, lipid, and satiety variables were observed due to the inclusion of an antioxidant to low-sugar jam. Conclusions: This study reinforces the idea that products without added sugars are appropriate for the management of glycemic alterations and provides further insight into the effect of natural antioxidants as a functional ingredient on oxidative status and related metabolic disturbances.
Autores:
Alves, R.; Esteves-de-Oliveira, F. C.; Hermsdorff, H. H. M.; et al.
Revista:
EUROPEAN JOURNAL OF NUTRITION
ISSN:
1436-6207
Año:
2014
Vol.:
53
N°:
1
Págs.:
49 - 60
Purpose: To evaluate the effects of two dietary patterns in which carbohydrates and proteins were eaten mostly at lunch or dinner on body weight and composition, energy metabolism, and biochemical markers in overweight/obese men. Methods: Fifty-eight men (30.0 ± 7.4 years; 30.8 ± 2.4 kg/m) followed a covert hypocaloric balanced diet (¿10 % of daily energy requirements) during 8 weeks. Subjects were randomly assigned to three groups: control diet (CT); diurnal carbohydrate/nocturnal protein (DCNP); and nocturnal carbohydrate/diurnal protein (NCDP). Main analyzed outcomes were weight loss, body composition, diet-induced thermogenesis (DIT), and glucose/lipid profile. Results: In all groups, a significant decrease in body weight, BMI, and fat mass (kg and %) was verified, without differences between groups. Interestingly, within group analyses showed that the fat-free mass (kg) significantly decreased in NCDP and in CT after 8-week intervention, but not in DCNP. A detrimental increase in fasting glucose, insulin, and homeostasis model assessment of insulin resistance (HOMA) was verified only in DCNP, while NCDP and CT groups presented a non-significant reduction. Moreover, significant differences between DCNP and the other groups were detected for fasting insulin and HOMA. After the adjustments, NCDP presented a significantly higher DIT and energy expenditure after lunch, compared with DCNP, but after dinner, there were no differences among groups. Conclusion: Eating carbohydrates mostly at dinner and protein mostly at lunch within a hypocaloric balanced diet had similar effect on body composition and biochemical markers, but higher effect on DIT compared with control diet. Moreover, eating carbohydrates mostly at lunch and protein mostly at dinner had a deleterious impact on glucose homeostasis.
Revista:
PSYCHONEUROENDOCRINOLOGY
ISSN:
0306-4530
Año:
2014
Vol.:
47
Págs.:
98 - 106
Reduced circulating monoamines may have a role in the development of the metabolic syndrome (MetS), which is becoming a major health problem worldwide. Moreover, an association between anxiety disorder and MetS has been reported; however, it is not clear whether weight loss can diminish anxiety. This investigation is aimed to examine the effects of a weight loss intervention on peripheral monoamines levels and anxiety symptoms in subjects with metabolic syndrome (MetS). The study population encompassed subjects with MetS (age: 50±10 y.o. and BMI: 35.8±4.3kg/m(2)) selected from the RESMENA study after they had completed the 6-month weight loss intervention (-30% energy). Anthropometric measurements, dietary records, anxiety symptoms, and blood monoamines levels were analysed before and after the intervention. Dopamine (DA) (+18.2%; 95% confidence interval (CI): -51.2 to -0.5) and serotonin (5-HT) (+16.1%; 95% CI: -26.3 to -2.2) blood levels were significantly increased after the intervention. Higher DA blood concentrations at the end of the study were inversely related with the carbohydrate intake during the study (B=-3.3; 95% CI: -8.4 to -0.4) and basal DA levels predicted a greater decrease in body weight and anthropometric parameters. Subjects with higher 5-HT concentrations after the weight loss intervention also showed a lower energy intake during the intervention (B=-0.04; 95% CI: -0.07 to -0.01). Additionally, anxiety symptoms decreased after the weight loss treatment (-28.3%; 95% CI: 6.2-20.4), which was parallel to a greater decrease in body weight and anthropometric markers, being related to lower 5-HT basal levels. Dietary restriction in patients with MetS may help in reducing anxiety symptoms, and also in increasing 5-HT and DA blood levels. These results provide further insights regarding emotional and neurological factors behind weight loss.
Revista:
ANALES DE LA REAL ACADEMIA NACIONAL DE FARMACIA
ISSN:
1697-4271
Año:
2014
Vol.:
80
N°:
3
Págs.:
614 - 623
Mediante una aproximación epigenómica, se analizaron las posibles asociaciones entre los niveles basales en la metilación del ADN y una mejor respuesta a la pérdida de peso después de un programa de intervención nutricional en la población obesa del estudio RESMENA. Esta investigación ha identificado 3 regiones de ADN (genes RGS6, A2BP1 y RASGRF1) que se encuentran diferencialmente metiladas entre sujetos con alta y baja respuesta a la pérdida de peso. Además, estos genes están implicados en la misma ruta metabólica y habían sido previamente significativamente asociados con la obesidad.
Autores:
Hermsdorff, H. H. M.; Barbosa, K. B. F.; Volp, A. C.; et al.
Revista:
EUROPEAN JOURNAL OF PREVENTIVE CARDIOLOGY
ISSN:
2047-4881
Año:
2014
Vol.:
21
N°:
7
Págs.:
884 - 891
Background: Oxidative stress has a pivotal role in the onset of obesity-related chronic diseases. This study assessed potential gender differences in the associations of adiposity (total vs. central) with oxidative stress markers in healthy young adults.
Methods: This cross-sectional study enrolled 272 subjects (97 males, 175 females; 22 +/- 3 years, body mass index 22.0 +/- 2.8 kg/m(2)). Body composition, cardiometabolic and lifestyle features, oxidized low-density lipoprotein cholesterol (ox-LDL) concentrations, plasma total antioxidant capacity (TAC), and glutathione peroxidase (GPx) activity in erythrocytes were determined by validated procedures.
Results: Compared to women, men had statistically higher concentrations of ox-LDL (61.7 vs. 53.5 U/l, p 0.022). In analyses with the whole sample, those individuals included in the highest tertile of central adiposity indicators (waist circumference, WC, or waist-to-hip ratio, WHR) presented higher ox-LDL and lower TAC values (p < 0.01), while no statistical differences were found across tertiles of total body fat. WHR values were more strongly associated with ox-LDL and TAC concentrations, compared to other adiposity indicators, with higher slopes for women. Sex differences in ox-LDL concentrations were abolished (p > 0.05) after individual pairing of men and women for WC (53.8 vs. 61.6 U/l, p = 0.225) or WHR (56.1 vs. 56.3 U/l, p = 0.471). No differences were found in GPx values concerning gender or adiposity indicators.
Conclusions: Plasma ox-LDL and TAC values were more strongly influenced by central adiposity indicators (WHR and WC) in women than in men, suggesting that the change of the gynoid to android pattern phenotype among young women could lead to a steeper unfavourable redox status compared to men.
Revista:
NUTRITION AND DIABETES
ISSN:
2044-4052
Año:
2014
Vol.:
4
Págs.:
e110
Irisin is assumed to be a relevant link between muscle and weight maintenance as well as to mediate exercise benefits on health. The aim of this study was to assess the possible associations between irisin levels and glucose homeostasis in obese subjects with metabolic syndrome (MetS) following an energy-restricted treatment. Ninety-six adults with excessive body weight and MetS features underwent a hypocaloric dietary pattern for 8 weeks, within the RESMENA randomized controlled trial (www.clinicaltrials.gov; NCT01087086). After the intervention, dietary restriction significantly reduced body weight and evidenced a dietary-induced decrease in circulating levels of irisin in parallel with improvements on glucose homeostasis markers. Interestingly, participants with higher irisin values at baseline (above the median) showed a greater reduction on glucose (P=0.022) and insulin (P=0.021) concentrations as well as on the homeostasis model assessment index (P=0.008) and triglycerides (P=0.006) after the dietary intervention, compared with those presenting low-irisin baseline values (below the median). Interestingly, a positive correlation between irisin and carbohydrate intake was found at the end of the experimental period. In conclusion, irisin appears to be involved in glucose metabolism regulation after a dietary-induced weight loss.
Revista:
CLINICAL NUTRITION
ISSN:
0261-5614
Año:
2014
Vol.:
33
N°:
6
Págs.:
1061 - 1067
Background & aim Metabolic syndrome and depression seem to share some common underlying mechanisms, although less is known about the impact of metabolic syndrome dietary treatments on depression. This study examined the association between a hypocaloric treatment designed to reduce metabolic syndrome features in self-perceived depression and the potential involvement of dietary components and oxidative stress changes.
Methods Analyses were based on volunteers (n = 55) with metabolic syndrome (age 50 ± 1 y.o.; 38M/17F), where depressive symptoms were assessed using the Beck Depression Inventory. Participants followed two hypocaloric diets (control diet and RESMENA diet) with the same energy restriction (¿30% TCV) for six months. Depressive symptoms, dietary records, anthropometrical measurements, biochemical parameters and oxidative stress levels were analysed.
Results Both diets improved self-perceived depression similarly (p = 0.528). Participants with lower depressive symptoms at baseline reported a significantly higher intake of omega-3 polyunsaturated fatty acids (p trend = 0.002). Interestingly, after adjusting for potential confounders, the increase in folate consumption (p = 0.011) and the decrease in plasma malondialdehyde levels (p = 0.012) throughout the intervention, were associated with the improvement in depressive symptoms.
Conclusions A higher intake of folate and a decline in malondialdehyde plasma levels during a weight loss intervention, were related to improvements in manifestations of depression
Revista:
AMERICAN JOURNAL OF HUMAN BIOLOGY
ISSN:
1042-0533
Año:
2014
Vol.:
26
N°:
2
Págs.:
198 - 207
Objective: The recently discovered peptide irisin has been hypothesized to be a regulator of body metabolism. The objective of this work was to evaluate whether circulating human irisin levels are modulated by body size and changes in adiposity during an energy restriction treatment and the subsequent weight regain.
Methods: A group of 94 obese patients (50 men, 44 women; 49.4¿±¿9.4 years; BMI 35.6¿±¿4.5 kg/m(2) ) participated in a weight loss program following an 8-week hypocaloric diet (-30% energy expenditure) with a weight maintenance follow-up. The patients were evaluated at 0, 8, and 24 weeks after starting treatment. In addition, 48 normal-weight subjects (16 men, 32 women; 35.71¿±¿8.8 years; BMI 22.9¿±¿2.2 kg/m(2) ) participated as controls. Plasma irisin, body weight, body composition, and hormones controlling energy homeostasis were measured.
Results: Irisin levels were higher in obese subjects (353.1¿±¿18.6 ng/mL) than in those of normal-weight (198.4¿±¿7.8 ng/mL; P¿¿¿0.001) and were also higher in men (340.9¿±¿20 ng/mL) than in women (267.6¿±¿12 ng/mL; P¿<¿0.05). Moreover, irisin plasma levels were significantly correlated with high levels of direct and indirect adiposity markers, such as weight, BMI, waist circumference, and fat mass, as measured by bioimpedance, but not with height or leptin levels. Interestingly, irisin levels paralleled body weight reduction after the dietary treatment (week 8) and again returned to the baseline levels at 24 weeks in those patients regaining the lost weight.
Conclusions: Irisin strongly reflects body fat mass, suggesting that the irisin circulating levels are conditioned by adiposity level.
Autores:
Barbosa, K. B. F.; Pinheiro-Volp, A. C.; Marques-Rocha, J. L.; et al.
Revista:
NUTRITION
ISSN:
0899-9007
Año:
2014
Vol.:
30
N°:
11-12
Págs.:
1349 - 1354
OBJECTIVES:
The aim of this study was to investigate the associations between plasma total antioxidant capacity (TAC) and anthropometric, biochemical, clinical, and dietary measurements in young and apparently healthy individuals.
METHODS:
We evaluated 156 individuals (91 women and 65 men; ages 23.1 ± 3.5 y; body mass index 22 ± 2.9 kg/m(2)) for anthropometrics, biochemical markers, clinical, dietary, and some components of the antioxidant defense system, including the plasma TAC. Statistical analyses were performed to detect differences between individuals with TAC higher and lower than the mean value and to screen the associations between TAC and variables of interest. A linear regression model was fitted to identify TAC predictors.
RESULTS:
Daily caloric intake and macronutrient consumption were lower in individuals who exhibited the highest TAC values (P < 0.05). Linear regression analysis showed that daily calories and carbohydrate intake was a possible negative TAC predictor (P < 0.05). Nevertheless, there was no difference in the values of oxidized low-density lipoprotein in the individuals separated by means of TAC. In contrast, individuals whose plasma TAC values were above the mean showed higher low-density lipoprotein cholesterol concentrations, total cholesterol/high-density lipoprotein cholesterol values, and selenium in nails (P < 0.05).
CONCLUSIONS:
In physiological conditions, the caloric intake level seems to be an important factor to act in the modulation of plasma TAC, before establishing anthropometric impairments of body or metabolic composition, or both. Additionally, the plasma TAC increase may be able to act as a compensatory mechanism.
Revista:
JOURNAL OF PHYSIOLOGY AND BIOCHEMISTRY
ISSN:
1138-7548
Año:
2014
Vol.:
70
N°:
2
Págs.:
593 - 602
The application of metabolomics in nutritional research may be a useful tool to analyse and predict the response to a dietary intervention. The aim of this study was to examine metabolic changes in serum samples following exposure to an energy-restricted diet (-15% of daily energy requirements) over a period of 8weeks in overweight and obese older adults (n=22) using a gas chromatography/mass spectrometry (GC/MS) metabolomic approach. After 8weeks, there were significant reductions in weight (7%) and metabolic improvement (glucose and lipid profiles). Metabolomic analysis found that total saturated fatty acids (SFAs), including palmitic acid (C16:0) and stearic acid (C18:0) and monounsaturated fatty acids (MUFAs), were significantly decreased after the 8-week intervention. Furthermore, palmitoleic acid (C16:1) was found to be a negative predictor of change in body fat loss. Both the total omega-6 and omega-3 polyunsaturated fatty acids (PUFAs) significantly decreased, although the overall total amounts of PUFAs did not. The branched chain amino acid (BCAA) isoleucine significantly decreased in the serum samples after the intervention. In conclusion, this study demonstrated that the weight loss intervention based on a hypocaloric diet identified changes in the metabolic profiles of serum in overweight and obese older adults, with a reduction in anthropometric and biochemical parameters also found.
Autores:
Barbosa, K. B. F.; Pinheiro-Volp, A. C.; Marques-Rocha, J. L.; et al.
Revista:
REDOX REPORT (ONLINE)
ISSN:
1743-2928
Año:
2014
Vol.:
19
N°:
6
Págs.:
251 - 258
The aim of this study was to investigate the potential modulators of erythrocyte glutathione peroxidase (GPx) activity in young and apparently healthy individuals. One hundred one individuals (53 women and 48 men) were evaluated for anthropometric measurements, biochemical markers, clinical, dietary, and endogenous and exogenous components of the antioxidant defense system. Statistical analysis was performed to detect differences among subjects by the median of GPx activity. A linear regression model and Spearman correlation coefficients were used to screen the associations between GPx activity and interest variables. Individuals with higher GPx enzymatic activity were older and higher circulating levels of oxidized low-density lipoprotein (ox-LDL) values, but conversely lower nail concentrations of selenium and copper (P<0.05). The GPx activity was positively correlated to truncal fat percentage values (r=0.24, P=0.016), circulating levels of ox-LDL (r=0.28, P=0.004), and daily vitamin C intake (r=0.28, P=0.007), and negatively correlated to the nail concentration of selenium (r=-0.24, P=0.026). Interesting, it was noticed that the truncal fat percentage and circulating levels of ox-LDL explained 5.9 and 7.4% of the GPx enzymatic activity. Thus, preventive measures such as adequate antioxidant intake and proper fat percentage would be a priority in the nutritional care of young and apparently healthy individuals.
Revista:
NUTRITION METABOLISM AND CARDIOVASCULAR DISEASES
ISSN:
0939-4753
Año:
2014
Vol.:
24
N°:
4
Págs.:
416 - 422
Background and Aims: Cocoa flavanols are recognised by their favourable antioxidant and vascular effects. This study investigates the influence on health of the daily consumption of ready-to-eat meals supplemented with cocoa extract within a hypocaloric diet, on middle-aged overweight/obese subjects.
Methods and Results: Fifty healthy male and female middle-aged volunteers [57.26 ± 5.24 years and body mass index (BMI) 30.59 ± 2.33 kg/m(2)] were recruited to participate in a 4 week randomised, parallel and double-blind study. After following 3 days on a low-polyphenol diet, 25 volunteers received meals supplemented with 1.4 g of cocoa extract (645.3 mg of polyphenols) and the other 25 participants received control meals, within a 15% energy restriction diet. On the 4th week of intervention individuals in both dietary groups improved (p < 0.05) anthropometric, body composition, blood pressure and blood biochemical measurements. Oxidised LDL cholesterol (oxLDL), showed a higher reduction (p = 0.030) in the cocoa group. Moreover, myeloperoxidase (MPO) levels decreased only in the cocoa supplemented group (p = 0.007). Intercellular Adhesion Molecule-1 (sICAM-1) decreased significantly in both groups, while Vascular Cell Adhesion Molecule-1 (sVCAM-1) did not present differences after the 4 weeks of intervention. Interestingly, cocoa intake showed a different effect by gender, presenting more beneficial effects in men.
Conclusions: The consumption of cocoa extract as part of ready-to-eat meals and within a hypocaloric diet improved oxidative status (oxLDL) in middle-aged subjects, being most remarkable in males.
Revista:
CLINICAL ENDOCRINOLOGY
ISSN:
0300-0664
Año:
2014
Vol.:
81
N°:
2
Págs.:
306 - 311
OBJECTIVE: A recently discovered myokine, irisin, may have an important role in energy metabolism. This study aimed to evaluate the relationship between this hormone and the lipid profile of patients with metabolic syndrome (MetS) following a hypocaloric diet.
DESIGN: Ninety-three Caucasian adults (52 men/41 women) diagnosed with MetS followed an 8-week-long energy-restricted programme (-30% of the energy requirements). Anthropometric measurements, biochemical markers and plasma irisin levels were analysed before and after the nutritional intervention.
RESULTS: Global plasma irisin levels were significantly reduced at the end of the study (-72·0±100·9ng/ml, P<0·001) accompanying the weight loss (-6·9%). The depletion of irisin significantly correlated with changes in some atherogenic-related variables: total cholesterol (B=0·106, P=0·018), total cholesterol/high-density lipoprotein cholesterol ratio (B=0·002, P=0·036), low-density lipoprotein cholesterol (B=0·085, P=0·037) and apolipoprotein B (B=0·052, P=0·002), independently of changes in body weight.
CONCLUSIONS: An association between the reduction in plasma irisin levels and the depletion of important lipid metabolism biomarkers was observed in patients with MetS undergoing an energy-restricted programme.
Revista:
ASIA PACIFIC JOURNAL OF CLINICAL NUTRITION
ISSN:
0964-7058
Año:
2014
Vol.:
23
N°:
3
Págs.:
360 - 368
The role of the gut microbiota in understanding the onset and development of obesity is gaining importance. Dietary strategies are the main tool employed to counteract obesity, and nowadays they are focused on a wide range of different aspects of diet and not only on calorie restriction. Additionally, diet is known to be a major factor influencing modification of the gut microbiota. Therefore the influence of both macronutrient and micronutrient content of any dietary strategy to treat obesity on gut bacterial composition should now be taken into consideration, in addition to energy restriction. This review aims to collect the available data regarding the influence of different dietary components on gut microbiota in relation to obesity and inflammatory states in humans. Although more work is needed, specific dietary factors (carbohydrate, protein and Mediterranean foods) have been shown to have an influence on the gut microbiome composition, meaning that there is an opportunity to prevent and treat obesity based on microbiota outcomes.
Revista:
NUTRITION
ISSN:
0899-9007
Año:
2014
Vol.:
30
N°:
4
Págs.:
424 - 429
Objectives
The aim of this study was to compare the effect of two energy-restricted, differing with regard to protein content, on the inflammation state of obese individuals with features of metabolic syndrome.
Methods
Ninety-six participants completed an 8-wk randomized intervention trial that compared the RESMENA diet (¿30% energy, with 30% energy from protein) with a control diet (¿30% energy, with 15% energy from protein) that was based on American Heart Association criteria.
Results
The mean body weight losses were 7.09 ± 0.82 kg and 6.73 ± 0.71 kg, respectively, with no differences seen between the groups. The endpoint inflammation score¿which was based on high-sensitivity C-reactive protein, interleukin-6, tumor necrosis factor-¿, and plasminogen activator inhibitor-1 levels¿was significantly lower (P = 0.012) in the low-protein group (6.81 ± 2.32 versus 7.94 ± 1.94). The linear regression analyses revealed that total protein intake was positively associated with inflammation (P = 0.007) as well as with animal protein (P = 0.025) and meat protein (P = 0.015), but neither vegetable- nor fish-derived proteins were found to influence inflammatory status.
Conclusions
Our results suggest that the type of protein consumed (more than the total protein consumed) within an energy-restricted diet influences the inflammation status associated with obesity-related comorbidities.
Revista:
ANALES DE LA REAL ACADEMIA DE FARMACIA
ISSN:
0034-0618
Año:
2014
Vol.:
80
N°:
3
Págs.:
624 - 636
El objetivo del trabajo fue estudiar en adultos sanos los efectos de una cuajada con perfil lipídico modificado sobre marcadores de riesgo cardiovascular. El estudio consistió en una intervención nutricional posprandial, doble ciego, aleatorizada, en 20 adultos sanos. En cada visita los participantes consumían la cuajada asignada y se obtuvieron muestras de sangre basales y durante 6 horas, para analizar variables relacionadas con riesgo cardiovascular. Los niveles posprandiales de Apolipoproteína-B fueron significativamente inferiores (p=0.008), mientras que los valores de colesterol total y LDL-colesterol también se redujeron modestamente (ns), observándose una tendencia (p<0.10) a mejorar la sensibilidad a la insulina tras consumir la cuajada experimental frente al control. Estos resultados permiten atribuir un posible efecto beneficioso sobre la salud, asociado al consumo de un postre con perfil lipídico modificado.
Revista:
JOURNAL OF FUNCTIONAL FOODS
ISSN:
1756-4646
Año:
2013
Vol.:
5
N°:
1
Págs.:
28-35
Tomato and tomato products are known as potential factors to decrease oxidative stress biomarkers. Therefore, the objective was to evaluate the effects of consumption of two tomato sauces with different concentrations of lycopene on oxidative stress markers. Thirty healthy subjects (Men/women: 9/21; Aged 39 +/- 6 years old; BMI: 24.5 +/- 3.3 kg/m(2)) were recruited to participate in a double-blind crossover study. Participants had to consume 160 g/day of tomato sauce, while maintaining their usual dietary and physical activity habits. The regular consumption of the high-lycopene tomato sauce induced a significant reduction in the oxidized-LDL cholesterol levels (-9.27 +/- 16.8%; p < 0.05). Moreover, total plasma antioxidant capacity tended to increase with the high-lycopene tomato sauce, while it decreased slightly with commercial tomato sauce consumption (2.69 +/- 13.4 vs 0.05 +/- 0.4; p = 0.058). Lipid, glucose profile and C-reactive protein concentrations were stable during both intervention periods, as well as anthropometric and body composition variables. Thus, the daily consumption of 160 g of a high-lycopene tomato sauce improved oxidizedLDL cholesterol levels, evidencing the putative role of lycopene in combination with other bioactive compounds in the prevention of oxidative stress related diseases. (C) 2012 Elsevier Ltd. All rights reserved.
Revista:
INTERNATIONAL JOURNAL OF FOOD SCIENCES AND NUTRITION
ISSN:
0963-7486
Año:
2013
Vol.:
64
N°:
6
Págs.:
674 - 681
This study evaluated the influence of curd consumption (a dairy product in which most whey proteins are discarded) on nutritional status markers and on gastrointestinal symptoms through an open-label randomized nutritional intervention. A total of 20 males and 20 females were involved in the study. Body weight and plasma levels of different health markers were measured at baseline and at the end of the study. Gastrointestinal symptoms and satiety were assessed by self-reported subjective questionnaires. There were neither relevant changes in body weight and composition, nor in all screened plasma determinations after the intervention. Satiety score analyses revealed no differences between the two experimental groups. The regular consumption of curd-improved abdominal pain (19%) and deposition scores (16%) when compared with those participants non-consuming curd, which may indicate a better tolerability of this product. Curd intake within a balanced diet improved some subjective markers of gastrointestinal status, which may be explained by the nutritional composition of curds.
Revista:
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
ISSN:
1422-0067
Año:
2013
Vol.:
14
N°:
4
Págs.:
6903 - 6919
Hyperglycemia and oxidative stress are conditions directly related to the metabolic syndrome (MetS), whose prevalence is increasing worldwide. This study aimed to evaluate the effectiveness of a new weight-loss dietary pattern on improving the oxidative stress status on patients suffering MetS with hyperglycemia. Seventy-nine volunteers were randomly assigned to two low-calorie diets (-30% Energy): the control diet based on the American Health Association criteria and the RESMENA diet based on a different macronutrient distribution (30% proteins, 30% lipids, 40% carbohydrates), which was characterized by an increase of the meal frequency (seven-times/day), low glycemic load, high antioxidant capacity (TAC) and high n-3 fatty acids content. Dietary records, anthropometrical measurements, biochemical parameters and oxidative stress biomarkers were analyzed before and after the six-month-long study. The RESMENA (Metabolic Syndrome Reduction in Navarra) diet specifically reduced the android fat mass and demonstrated more effectiveness on improving general oxidative stress through a greater decrease of oxidized LDL (oxLDL) values and protection against arylesterase depletion. Interestingly, oxLDL values were associated with dietary TAC and fruit consumption and with changes on body mass index (BMI), waist circumference, fat mass and triacilglyceride (TG) levels. In conclusion, the antioxidant properties of the RESMENA diet provide further benefits to those attributable to weight loss on patients suffering Mets with hyperglycemia.
Revista:
ANNALS OF NUTRITION AND METABOLISM
ISSN:
0250-6807
Año:
2013
Vol.:
63
N°:
Suppl. 1
Págs.:
1678
Revista:
OMICS: A JOURNAL OF INTEGRATIVE BIOLOGY (ONLINE)
ISSN:
1557-8100
Año:
2013
Vol.:
17
N°:
12
Págs.:
611 - 618
Postgenomics research and development is witnessing novel intersections of omics data intensive technology and applications in health and personalized nutrition. Chief among these is the nascent field of nutri-metabolomics that harnesses metabolomics platforms to discern person-to-person variations in nutritional responses. To this end, differences in the origin and ripening stage of fruits might have a strong impact on their phytochemical composition, and consequently, on their potential nutri-metabolomics effects on health. The objective of the present study was to evaluate the effects of a 4-week cross-over nutritional intervention on the metabolic status of 24 young healthy subjects. The intervention was carried out with two tomato sauces differing in their natural lycopene content, which was achieved by using tomatoes harvested at different times. Blood samples were drawn from each subject before and after each intervention period. Aqueous and lipid extracts from serum samples were analyzed by (1)H-NMR metabolic profiling combined with analysis of variance simultaneous component analysis (ASCA) and multilevel simultaneous component analysis (MSCA). These methods allowed the interpretation of the variation induced by the main factors of the study design (sauce treatment and time). The levels of creatine, creatinine, leucine, choline, methionine, and acetate in aqueous extracts were increased after the intervention with the high-lycopene content sauce, while those of ascorbic acid, lactate, pyruvate, isoleucine, alanine were increased after the normal-lycopene content sauce. In conclusion, NMR-based metabolomics of aqueous and lipid extracts allowed the detection of different metabolic changes after the nutritional intervention. This outcome might partly be due to the different ripening state of the fruits used in production of the tomato sauces. The findings presented herein collectively attest to the emergence of the field of nutri-metabolomics as a novel subspecialty of postgenomics integrative biology.
Revista:
JOURNAL OF CLINICAL BIOCHEMISTRY AND NUTRITION
ISSN:
0912-0009
Año:
2013
Vol.:
53
N°:
3
Págs.:
139 - 144
Plasminogen activator inhibitor 1 (PAI-1) has been associated with metabolic disorders, through different mechanisms, which could involve changes in DNA methylation. This work aimed to assess the potential relationships of the cytosine methylation levels within SERPINE1 gene transcriptional regulatory region, which codes for PAI-1, in peripheral white blood cells with anthropometrical, metabolic and inflammatory features. Forty-six obese subjects with metabolic syndrome features followed Control or Metabolic Syndrome Reduction in Navarra (RESMENA) energy-restricted (-30%E) diets for 8 weeks. SERPINE1 transcriptional regulatory region methylation at baseline was analyzed by a microarray technical. Both dietary strategies reduced anthropometric and biochemical parameters. The Control group significantly reduced plasma PAI-1 concentrations but not the RESMENA group. Participants from both nutritional interventions with higher SERPINE1 methylation levels at baseline showed significantly major reductions in body weight, total fat mass, android fat mass, total cholesterol and triglycerides, as compared with those with lower initial SERPINE1 methylation levels. In conclusion, the DNA methylation levels of SERPINE1 transcriptional regulatory region were associated with some metabolic and anthropometric changes in obese subjects with metabolic syndrome under energy restriction, suggesting a complex epigenetic network in the regulation of this recognized pro-inflammatory marker.
Revista:
NUTRITION AND METABOLISM
ISSN:
1743-7075
Año:
2013
Vol.:
10
Págs.:
22
Background: Dietary strategies seem to be the most prescribed therapy in order to counteract obesity regarding not only calorie restriction, but also bioactive ingredients and the composition of the consumed foods. Dietary total antioxidant capacity (TAC) is gaining importance in order to assess the quality of the diet.
Methods: Ninety-six obese adults presenting metabolic syndrome (MetS) symptoms completed an 8-week intervention trial to evaluate the effects of a novel dietary program with changes in the nutrient distribution and meal frequency and to compare it with a dietary pattern based on the American Heart Association (AHA) guidelines. Anthropometric and biochemical parameters were assessed at baseline and at the endpoint of the study, in addition to 48-hours food dietary records.
Results: Both diets equally (p > 0.05) improved MetS manifestations. Dietary TAC was the component which showed the major influence on body weight (p = 0.034), body mass index (p = 0.026), waist circumference (p = 0.083) and fat mass (p = 0.015) reductions. Transaminases (ALT and AST) levels (p = 0.062 and p = 0.004, respectively) were associated with lower TAC values.
Conclusion: RESMENA diet was as effective as AHA pattern for reducing MetS features. Dietary TAC was the most contributing factor involved in body weight and obesity related markers reduction.
Autores:
Malafarina, V.; Úriz-Otano, F.; Gil-Guerrero, L.; et al.
Revista:
MATURITAS
ISSN:
0378-5122
Año:
2013
Vol.:
76
N°:
2
Págs.:
123 - 128
INTRODUCTION: Loss of muscle strength is associated with falls, which, in turn, are the main cause of hip fractures in elderly people. The factors that most influence loss of strength in elderly people are a decrease in muscle mass, i.e. sarcopenia, and an increase in fat, i.e. obesity.
METHODS: A prospective randomized clinical trial among patients who have undergone an operation for a traumatic hip fracture and who are aged 65 or above will be implemented. We shall compare a control diet against a high-protein diet enriched with beta-hydroxy-betamethylbutirate, calcium and vitamin D. The diet will be administered during 30 days of hospitalization in the orthopaedic geriatric rehabilitation unit. There will be 50 patients in each arm of the study. The main objective is to assess whether the experimental diet, together with rehabilitation, improves functional recovery, measured on the Barthel index. Secondary objectives are to assess changes in body composition and the prevalence of sarcopenia, obesity and mortality one year after the hip fracture. We shall also assess whether there is a relationship between specific inflammatory markers, sarcopenia and functional recovery.
CONCLUSIONS: Ageing is accompanied by changes in body composition that increase the risk of falls and progressive functional loss. These factors are a public health problem because they are highly associated with disability in older people. The present study seeks to gain knowledge of those factors that are most often associated with the onset of disability and those that can be modified through diet.
Revista:
CYTOKINE
ISSN:
1043-4666
Año:
2013
Vol.:
64
N°:
1
Págs.:
265 - 271
The aim of this article is to assess the potential relationships between TNFalpha gene promoter methylation in peripheral white blood cells and central adiposity (truncal fat), metabolic features and dietary fat intake. A group of 40 normal-weight young women (213y; BMI 21.01.7kg/m(2)) was included in this cross-sectional study. Anthropometric, biochemical and dietary data were assessed using validated procedures. DNA from white blood cells was isolated and 5-methylcytosine levels of the CpGs sites present in TNFalpha gene promoter (from -170 to +359 pb) were analyzed by Sequenom EpiTyper. Those women with high truncal fat (¿52.3%) showed lower 5-methylcytosine levels (P<0.05) in the site CpG13 (at position +207) and CpG19 (+317 pb) of the TNFalpha gene promoter when were compared to women with lower truncal adiposity. The methylation levels of CpG13 were also correlated with circulating TNFalpha levels, which were higher in those women with greater truncal adiposity. In a linear regression model, truncal fat, HDL-cholesterol, insulin, plasma TNFalpha, and daily n-6 PUFA intake explained the methylation levels of CpG13 site +207 by 48% and the average of CpG13 and CpG19 by 43% (P<0.001). In conclusion, women with higher truncal fat showed lower methylation levels of TNFalpha promoter in peripheral white blood cells and higher plasma TNFalpha concentrations. DNA methylation levels of TNFalpha promoter were associated with some metabolic features and with n-6 PUFA intake, suggesting a complex nutriepigenomic network in the regulation of this recognized pro-inflammatory marker.
Revista:
INTERNATIONAL JOURNAL OF FOOD SCIENCES AND NUTRITION
ISSN:
0963-7486
Año:
2012
Vol.:
63
N°:
6
Págs.:
749-765
Obesity and other chronic diseases are accompanied by adipose tissue, liver, pancreas, muscle and brain low-grade chronic inflammation. Indeed, the obese condition and metabolic syndrome are characterized by an increased expression of inflammatory cytokines and infiltration of immune cells in adipocytes. The inflammatory response promotes the activation of transcriptional factors and pro-inflammatory cytokines, which can lead to an unresolved inflammatory response associated with an inhibition of insulin signalling and high risk for cardiovascular events. Epidemiological and intervention studies have been carried out to find out dietary patterns, foods and bioactive compounds with protective anti-inflammatory actions. The most studied compounds are polyphenols, especially isoflavone and anthocyanin, but quercertin, catechin and resveratrol have also been investigated. Furthermore, some studies have reported the effects of milk peptides, plant sterol and stanol, L-carnitine and alpha-lipoic acid on inflammatory processes. This review aimed to collect and discuss those relevant studies reported in the scientific literature following a systematic scientific search about the effect of such bioactive compounds on inflammation in humans.
Revista:
INFLAMMATION RESEARCH
ISSN:
1023-3830
Año:
2012
Vol.:
61
N°:
5
Págs.:
427 - 435
This cross-sectional study assessed the potential contribution of gender, body fat distribution, and their interactions to some inflammatory marker concentrations [C-reactive protein (CRP), complement factor 3 (C3), and ceruloplasmin (Cp)] in young adults.
Measurements included body composition, lifestyle features, blood biochemical and selected inflammatory markers on 317 healthy subjects [122 males/195 females; 22 +/- A 3 years; 22.1 +/- A 2.8 kg/m(2) (mean +/- SD)].
Women had significantly higher CRP and Cp concentrations than men. No gender difference was noted in C3 concentrations. In a multivariate model of the whole sample, body fat (BF), waist circumference (WC) and the sex x WC interaction term presented the highest R (2) for variance of CRP (11%), C3 (2%), and Cp (12%), respectively. In regression models separated by sex, BF was the adiposity indicator that explained the variability of CRP in men (13%) and women (7%). WC was the only variable significantly associated with C3 concentrations in women (3%). BF presented the highest partial R (2) for Cp in men (8%) and WC in women (16%).
Our findings indicate a relevant interaction between gender and body fat distribution on the variance of CRP, C3, and Cp concentrations in apparently healthy young adults.
Revista:
JOURNAL OF PEDIATRICS
ISSN:
0022-3476
Año:
2012
Vol.:
161
N°:
3
Págs.:
466-470
OBJECTIVE:
To estimate the contribution of 9 obesity-related polymorphisms and a genetic predisposition score (GPS) on anthropometric and biochemical variables before and after a weight loss intervention program in overweight/obese Spanish adolescents.
STUDY DESIGN:
Overweight/obese adolescents (n = 168; 12-16 years) participating in the EVASYON program were genotyped for 9 obesity-related single nucleotide polymorphisms in the FTO, MC4R, TMEM18, IL6, PPARG, and ADIPQ genes.
RESULTS:
At baseline, the GPS showed a significant association with body mass index-standard deviation score (BMI-SDS) and fat mass. After 3 months of intervention, this GPS also showed a relationship with the variation of both anthropometric measurements. After adjusting for baseline BMI-SDS, subjects with a lower GPS had a greater improvement on metabolic profile, as well as a better response to physical activity, compared with those subjects with a higher GPS.
CONCLUSIONS:
The GPS seems to have an important relationship with BMI-SDS and fat mass both at baseline and after a 3-month weight loss lifestyle intervention. Obese and overweight adolescents with a lower GPS have a greater benefit of weight loss after 3 months of a multidisciplinary lifestyle intervention.
Revista:
ANALES DEL SISTEMA SANITARIO DE NAVARRA
ISSN:
1137-6627
Año:
2012
Vol.:
35
N°:
1
Págs.:
185 - 186
Revista:
Current Nutrition & Food Science
ISSN:
1573-4013
Año:
2012
Vol.:
8
N°:
1
Págs.:
25 - 44
The metabolic syndrome is one of the most evident health concerns worldwide. It is characterized by several metabolic abnormalities, which include obesity, dyslipidemia, insulin resistance, increased oxidative stress, an increased pro-inflammatory state and hypertension. Nowadays, functional foods are used in the prevention and amelioration of several chronic diseases, such as the metabolic syndrome. The relation of the consumption of certain functional foods and the improvement in health status is regulated through health claims. This review focuses on the different features of the metabolic syndrome and the influence of functional foods on these aspects, involving weight management, improvement of insulin sensitivity, serum lipid profile, anti-oxidant status, inflammatory status and hypertension. The role of plant sterols, dietary fiber, soy protein, omega-3 fatty acids, coffee, vitamin E and C, isoflavones, lycopene, sodium-low foods, a high protein diet, mono-unsaturated fatty acids, minerals and thermogenic compounds is examined concerning their functional properties
Autores:
Miranda, Helen Hermana; Barbosa, KB; Volp, AC; et al.
Revista:
BRITISH JOURNAL OF NUTRITION
ISSN:
0007-1145
Año:
2012
Vol.:
107
N°:
8
Págs.:
1119 - 1127
The aim of the present cross-sectional study was to assess the potential relationships between fruit and vegetable (FV) consumption and some oxidative stress markers in young adults, with particular emphasis on fibre and vitamin C intake. The study enrolled 246 healthy subjects (eighty-eight men and 158 women), with a mean age of 22 (sd 3) years and a mean BMI of 21·9 (sd 2·8) kg/m2. Dietary intake, anthropometry, blood pressure, lifestyle features and blood biochemical data were assessed with validated procedures. Those subjects in the highest tertile (T) of FV consumption ( ¿ 705 g/d) had statistically lower oxidised LDL (ox-LDL) concentrations as well as higher plasma total antioxidant capacity (TAC) and glutathione peroxidase (GPx) activity (P for trend <0·05), after adjusting for sex, age, energy intake, physical activity, smoking, BMI, vitamin supplement use and other confounding factors. Moreover, plasma ox-LDL concentrations showed a decreasing trend and TAC an increasing trend across tertiles of fibre (T3: ¿14 g/d) and vitamin C (T3: ¿150 mg/d) from FV intake, while GPx activity was positively associated with vitamin C intake (P for trend < 0·05). In conclusion, greater FV consumption was independently associated with reduced ox-LDL as well as increased TAC and GPx activity in healthy young adults, with dietary fibre and vitamin C from FV clearly being implicated in this beneficial relationship.
Revista:
FASEB J
ISSN:
0892-6638
Año:
2011
Vol.:
25
N°:
4
Págs.:
1378 - 1389
Revista:
European Journal of Nutrition
ISSN:
1436-6207
Año:
2011
Vol.:
50
N°:
1
Págs.:
61 - 69
The nutritional composition of the dietary intake could produce specific effects on metabolic variables and inflammatory marker concentrations. This study assessed the effects of two hypocaloric diets (legume-restricted- vs. legume-based diet) on metabolic and inflammatory changes, accompanying weight loss.
Thirty obese subjects (17 M/13F; BMI: 32.5 +/- A 4.5 kg/m(2); 36 +/- A 8 years) were randomly assigned to one of the following hypocaloric treatments (8 weeks): Calorie-restricted legume-free diet (Control: C-diet) or calorie-restricted legume-based diet (L-diet), prescribing 4 weekly different cooked-servings (160-235 g) of lentils, chickpeas, peas or beans. Body composition, blood pressure (BP), blood biochemical and inflammatory marker concentrations as well as dietary intake were measured at baseline and after the nutritional intervention.
The L-diet achieved a greater body weight loss, when compared to the C-diet (-7.8 +/- A 2.9% vs. -5.3 +/- A 2.7%; p = 0.024). Total and LDL cholesterol levels and systolic BP were improved only when consuming the L-diet (p < 0.05). L-diet also resulted in a significant higher reduction in C-reactive protein (CRP) and complement C3 (C3) concentrations (p < 0.05), compared to baseline and C-diet values. Interestingly, the reduction in the concentrations of CRP and C3 remained significantly higher to L-diet group, after adjusting by weight loss (p < 0.05). In addition, the reduction (%) in CRP concentrations was positively associated with decreases (%) in systolic BP and total cholesterol concentration specifically in the L-diet group, independent from weight loss (p < 0.05).
The consumption of legumes (4 servings/week) within a hypocaloric diet resulted in a specific reduction in proinflammatory markers, such as CRP and C3 and a clinically significant improvement of some metabolic features (lipid profile and BP) in overweight/ obese subjects, which were in some cases independent from weight loss.
Revista:
INFLAMMATION
ISSN:
0360-3997
Año:
2011
Vol.:
34
N°:
3
Págs.:
161 - 170
This study assessed the potential association of some proinflammatory markers with adiposity (total vs. central) and metabolic features in young adults. Measurements included body composition, lifestyle features, blood biochemical, and selected inflammatory indicators on 154 healthy subjects (53 M/101 F; 21.5 +/- 3 years; 22.1 +/- 2.6 kg/m(2)). Those subjects with higher waist circumference (WC) and waist-hip ratio (WHR) showed higher (P < 0.05) C-reactive protein (CRP), complement C3, interleukin-6 (IL6), and retinol binding protein-4 (RBP4) concentrations, while only IL6 was positively associated with total body fat (%). Furthermore, CRP and RBP4 were higher in former/current smokers, as compared to never smokers (P < 0.05). Some indicators of glucose (homeostasis model assessment-insulin resistance) and lipid metabolism (total cholesterol/high density lipoprotein-cholesterol and triglycerides) were positively associated with the assayed inflammatory markers (P < 0.05). The findings of this cross-sectional study indicate that central adiposity-related indicators (WC/WHR) correlated better than those assessing total adiposity with plasma proinflammatory markers, which additionally were associated with lifestyle and metabolic features in healthy young adults.
Revista:
Nutrition Journal
ISSN:
1475-2891
Año:
2011
Vol.:
10
N°:
74
Págs.:
1- 11
BACKGROUND:
Obesity is the most relevant overnutrition disease worldwide and is associated to different metabolic disorders such as insulin resistance and type-2 diabetes. Low glycemic load foods and diets and moderately high protein intake have been shown to reduce body weight and fat mass, exerting also beneficial effects on LDL-cholesterol, triglyceride concentrations, postprandial glucose curve and HDL-cholesterol levels. The present study aimed at studying the potential functionality of a series of low glycemic index products with moderately high protein content, as possible coadjuvants in the control of type-2 diabetes and weight management following a chronologically planned snacking offer (morning and afternoon).
METHODS:
The current trial followed a single group, sequential, longitudinal design, with two consecutive periods of 4 weeks each. A total of 17 volunteers participated in the study. The first period was a free living period, with volunteers' habitual ad libitum dietary pattern, while the second period was a free-living period with structured meal replacements at breakfast, morning snack and afternoon snack, which were exchanged by specific products with moderately high protein content and controlled low glycemic index, following a scheduled temporal consumption. Blood extractions were performed at the beginning and at the end of each period (free-living and intervention). Parameters analysed were: fasting glucose, insulin, glycosylated hemoglobin, total-, HDL- and LDL-cholesterol, triglyceride, C - reactive protein and Homocysteine concentrations. Postprandial glucose and insulin were also measured. Anthropometrical parameters were monitored each 2 weeks during the whole study.
RESULTS:
A modest but significant (p = 0.002) reduction on body weight (1 kg) was observed during the intervention period, mainly due to the fat mass loss (0.8 kg, p = 0.02). This weight reduction was observed without apparently associated changes in total energy intake. None of the biochemical biomarkers measured was altered throughout the whole study.
CONCLUSIONS:
Small changes in the habitual dietary recommendations in type-2 diabetes patients by the inclusion of specific low-glycemic, moderately high-protein products in breakfast, morning and afternoon snacks may promote body weight and fat-mass loss, without apparently altering biochemical parameters and cardiovascular risk-related factors.
Revista:
NUTRITION AND METABOLISM
ISSN:
1743-7075
Año:
2011
Vol.:
8
N°:
59
Págs.:
1 - 8
BACKGROUND:
Dietary total antioxidant capacity (TAC) has been assumed as a useful tool to assess the relationship between the cumulative antioxidant food capacity and several chronic disorders. The aim of this cross-sectional study was to investigate the potential relationships of dietary TAC with adiposity, metabolic and oxidative stress markers in healthy young adults.
METHODS:
This study enrolled 266 healthy subjects (105 men/ 161 women; 22 ± 3 years-old; 22.0 ± 2.7 kg/m2). Dietary intake, anthropometry, blood pressure, lifestyle features, and biochemical data were assessed with validated procedures.
RESULTS:
In linear regression analyses, dietary TAC values were inversely associated with glycemia, total cholesterol:HDL-c ratio, triglycerides and oxidized-LDL concentrations, and positively associated with HDL-c concentrations, independently of gender, age, smoking status, physical activity, vitamin use supplement, waist circumference, energy intake, fatty acid intake. In addition, plasma TAC was negatively correlated with ox-LDL concentrations (r= -0.20, P = 0.003), independently of the assessed confounding variables. Finally, dietary TAC values were inversely related to waist circumference values (r= -0.17, P = 0.005) as well as to lower mild central obesity occurrence (waist circumference ¿ 80/ 94 cm for women/ men, respectively).
CONCLUSION:
Dietary TAC values are inversely associated with glucose and lipid biomarkers as well as with central adiposity measurements in healthy young adults, indicating dietary TAC as a useful tool to assess the health benefits of cumulative antioxidant capacity from food intake. In addition, the independent and inverse relationships of ox-LDL concentrations with dietary and plasma TAC respectively suggest a putative role of antioxidant rich-diet in the link between redox state and atherogenesis at early stage.
Revista:
BIOLOGICAL TRACE ELEMENT RESEARCH
ISSN:
0163-4984
Año:
2011
Vol.:
143
N°:
1
Págs.:
8 - 19
To assess the effects of a moderately high-protein intake on the body composition, biochemical, and antioxidant status parameters in young adults depending on either selenium- (Se) or non-enriched chicken consumption. The volunteers (n = 24) that completed the 10-week nutritional intervention were distributed in two parallel groups and randomly assigned to follow an isocaloric diet with moderately high content in protein (30% energy), either with the consumption of four 200 g portions/week of Se- or non-enriched chicken breasts. Blood samples were taken at the beginning and at the end of the study and body composition was monitored during the trial. There was a significant reduction in weight, accompanying a decrease on fat mass in both groups, while fat-free mass remained unchanged during the 10 weeks of intervention, without differences between both dietary groups. Selenium blood levels and plasma glutathione peroxidase activity, as well as lipid, glucose, and selected inflammation biomarkers remained stable during the intervention period in both dietary groups. Frequent chicken consumption, within a controlled diet with a moderately high content in protein, produced a slight but statistically significant weight reduction mainly due to the loss of fat mass. An extra Se supplementation (22 mu g/day) in the Se-enriched chicken breast did not affect tachyphylactic antioxidant status of the participants neither inflammatory-related markers after weight loss.
Autores:
Barbosa, KB; Volp, AC; Miranda, Helen Hermana; et al.
Revista:
LIPIDS IN HEALTH AND DISEASE
ISSN:
1476-511X
Año:
2011
Vol.:
10
N°:
1
Págs.:
61
Revista:
American Journal of Clinical Nutrition
ISSN:
0002-9165
Año:
2011
Vol.:
93
N°:
6
Págs.:
1384 - 1384
Revista:
Nutricion Hospitalaria
ISSN:
0212-1611
Año:
2011
Vol.:
26
N°:
1
Págs.:
16-26
Revista:
OMICS-A JOURNAL OF INTEGRATIVE BIOLOGY
ISSN:
1536-2310
Año:
2010
Vol.:
14
N°:
3
Págs.:
297 - 307
Peripheral blood mononuclear cells (PBMC) measurements have proved useful in recent studies to discern peripheral biomarkers for common complex diseases and for understanding host responses to drugs and nutrition in personalized medicine. Despite the initial promising data from PBMC, there is little information, however, on inflammatory and immune gene regulation in the context of body fat distribution and metabolic features in healthy adults. We investigated the putative association of body fat distribution and related-metabolic features with mRNA levels of proinflammatory markers in PBMC. This study enrolled 136 healthy subjects (85 females/51 males; age: 21.5 +/- 2.5 years). Anthropometrical, clinical, metabolic, and proinflammatory variables were assessed with validated tools. Interestingly, in normal-weight subjects with lower truncal fat (TF) values, mRNA levels of ICAM1, IL1R1, IL6, and TNF-alpha in PBMC were lower (p < 0.05), compared to normal-weight individuals with higher TF (>58.5/50.2% for men/women, respectively) and overweight/obese subjects [body mass index (BMI) >25 kg/m(2)]. After regression analyses were performed, individuals with the highest tertiles of TF and waist circumference displayed higher mRNA gene expressions as well as circulating proinflammatory (C-reactive protein and IL6) and metabolic (blood pressure, HOMA-IR, and LDL-c:HDL-c ratio) variables values (p < 0.05), independent from gender. Our findings collectively suggest that the mRNA expression of certain proinflammatory markers in PBMC is associated with body fat distribution in healthy adult subjects, which in turn, was also related to metabolic features and plasma proinflammatory markers concentrations.
Revista:
INTERNATIONAL JOURNAL OF FOOD SCIENCES AND NUTRITION
ISSN:
0963-7486
Año:
2010
Vol.:
61
N°:
7
Págs.:
713 - 721
BACKGROUND:
Dietary antioxidant intake has been suggested to protect against oxidative damage and related clinical complications. The aim of the present study was to assess the potential relationships between the dietary total antioxidant capacity (TAC) and obesity-related features in children and adolescents.
MATERIALS AND METHODS:
Anthropometric variables from 369 children and adolescents were measured (184 obese and 185 control). A validated food-frequency questionnaire was used to calculate the TAC and the daily nutrient and energy intake.
RESULTS:
Dietary TAC showed positive associations with fiber, folic acid, magnesium, and vitamins A, C and E. The body mass index, standard deviation score of body mass index and total body fat were inversely associated with dietary TAC only in obese subjects.
CONCLUSION:
These data suggest that dietary TAC may be a potential indicator of the risk to develop obesity-related features and could be considered a useful method in assessing antioxidant intake.
Revista:
Nutrition
ISSN:
0899-9007
Año:
2010
Vol.:
26
N°:
5
Págs.:
534 - 541
Objective: Oxidative stress has been related to the development of obesity and other features accompanying chronic diseases Furthermore, dietary antioxidant intake has been suggested to protect against oxidative damage and related clinical complications Therefore, the aim of this study was to assess the potential associations among dietary total antioxidant capacity (TAC) and several early metabolic syndrome manifestations in healthy young adults.
Methods: Anthropometric variables and blood pressure from 153 healthy subjects (20 8 +/- 27 y old) were measured Dietary intake was assessed by a validated food-frequency questionnaire and a 3-d record, which were also used to calculate TAC and to adjust by daily energy intake. Fasting blood samples were collected for measuring biochemical markers.
Results: Dietary TAC showed positive and significant associations with fiber, folic acid, vitamin A and C. magnesium, selenium, and zinc intakes, after adjusting by sex and daily energy intake Interestingly, systolic blood pressure, serum glucose. and free fatty acids were also found to be negatively associated with dietary TAC independently of sex and daily energy intake Also, a relevant relation was found between body mass index and TAC values. Interestingly, after adjusting by sex and daily enemy intake, complement factor-3 circulating levels appeared to be negatively and significantly associated with dietary TAC, whereas blood plasminogen activator inhibitor-1 and homocysteine concentrations showed an Inverse marginally statistical trend.
Conclusions: These data suggest that dietary TAC may be also a potential early estimate of the risk to develop metabolic syndrome features and that dietary TAC could be a useful research tool in assessing antioxidant intake
Revista:
NUTRITION AND METABOLISM
ISSN:
1743-7075
Año:
2010
Vol.:
7
Págs.:
42 -
Background: Fruits and vegetables are important sources of fiber and nutrients with a recognized antioxidant capacity, which could have beneficial effects on the proinflammatory status as well as some metabolic syndrome and cardiovascular disease features. The current study assessed the potential relationships of fruit and vegetable consumption with the plasma concentrations and mRNA expression values of some proinflammatory markers in young adults.
Methods: One-hundred and twenty healthy subjects (50 men/70 women; 20.8 +/- 2.6 y; 22.3 +/- 2.8 kg/m(2)) were enrolled. Experimental determinations included anthropometry, blood pressure and lifestyle features as well as blood biochemical and inflammatory measurements. The mRNA was isolated from peripheral blood mononuclear cells (PBMC) and the gene expression concerning selected inflammatory markers was assessed by quantitative real-time PCR. Nutritional intakes were estimated by a validated semi-quantitative food-frequency questionnaire.
Results: The highest tertile of energy-adjusted fruit and vegetable consumption (> 660 g/d) was associated with lower plasma concentrations of C-reactive protein (CRP) and homocysteine and with lower ICAM1, IL1R1, IL6, TNF alpha and NF kappa B1 gene expression in PBMC (P for trend < 0.05), independently of gender, age, energy intake, physical activity, smoking, body mass index, systolic blood pressure and circulating non-esterified fatty acids. In addition, plasma CRP, homocysteine and TNF alpha concentrations and ICAM1, TNF alpha and NF kappa B1 gene expression in PBMC showed a descending trend as increased fiber intake (> 19.5 g/d) from fruits and vegetables (P for trend < 0.05). Furthermore, the participants within the higher tertile (> 11.8 mmol/d) of dietary total antioxidant capacity showed lower plasma CRP and mRNA values of ICAM1, IL1R1, IL6, TNF alpha and NF kappa B1 genes (P for trend < 0.05). The inverse association between fruit and vegetable consumption and study proinflammatory markers followed the same trend and remained statistically significant, after the inclusion of other foods/nutrients in the linear regression models.
Conclusion: A higher fruit and vegetable consumption was independently associated not only with reduced CRP and homocysteine concentrations but also with a lower mRNA expression in PBMC of some relevant proinflammatory markers in healthy young adults.
Revista:
BIOLOGICAL TRACE ELEMENT RESEARCH
ISSN:
0163-4984
Año:
2010
Vol.:
133
N°:
3
Págs.:
304 - 312
