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Energy expenditure improved risk factors associated with renal function loss in NAFLD and MetS patients

Autores: Abbate, M.; Mascaro, C. M. ; Montemayor, S.; Barbería Latasa, María; Casares, M.; Gomez, C.; Angullo-Martinez, E.; Tejada, S.; Abete Goñi, Itziar; Zulet Alzórriz, María de los Ángeles; Sureda, A.; Martínez Hernández, Alfredo; Tur, J. A. (Autor de correspondencia)
Título de la revista: NUTRIENTS
ISSN: 2072-6643
Volumen: 13
Número: 2
Páginas: 629
Fecha de publicación: 2021
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.