Nuestros investigadores

Gabriel Gastaminza Lasarte

Publicaciones científicas más recientes (desde 2010)

Autores: Gastaminza, Gabriel, (Autor de correspondencia); Ruiz-Canela, Miguel; Andres-Lopez, B.; et al.
Revista: JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE
ISSN 2213-2198  Vol. 7  Nº 8  2019  págs. 2714 - 2721
BACKGROUND: Suspicion of allergic drug reaction can cause important disturbances in the patient's life. OBJECTIVE: We evaluated in a prospective multicenter study the quality of life of patients who suffered a possible allergic drug reaction, and analyzed the effect of a drug allergy evaluation. METHODS: Patients (>18 years old) answered the specific questionnaire twice: before the drug allergy evaluation, and 1 month after it was completed. Statistics were performed using STATA. RESULTS: A total of 360 patients (240, 66.6% female; mean age, 45.4 years; standard deviation [SD], 15.6 years) completed the first questionnaire. After the evaluation, 150 of 346 patients (43.4%) were diagnosed as allergic to the drug (115 of 150 immediate; 35 of 150 delayed) and 196 of 346 patients (56.6%) as nonallergic. The mean value of the first questionnaire was 32.14 (SD, 11.84); patients with anaphylaxis, nonanaphylactic immediate reaction, with more than 1 drug reaction, or a chronic osteoarticular disease, had a statistically significant higher score in Q0 (worse quality of life). After the allergy study, the mean of the second questionnaire was 27.27 (SD, 9.96), showing a global improvement (P < .001). No statistically significant difference was found between drug allergic and non-drug allergic patients (P = .340); however, being >40 years old (P = .030), having a chronic osteoarticular disease (P = .003) and having more than 1 reaction to drugs (P < .001) were associated with a statistically significant worse quality of life after the evaluation. CONCLUSIONS: Having suffered anaphylaxis, more than 1 reported drug allergy or presenting a musculoskeletal disease are factors that worsen the quality of life. Quality of life improved significantly after completing a drug allergy evaluation. (C) 2019 American Academy of Allergy, Asthma & Immunology
Autores: Laguna, JJ; Archilla, J; Doña, I; et al.
Revista: JOURNAL OF INVESTIGATIONAL ALLERGOLOGY AND CLINICAL IMMUNOLOGY
ISSN 1018-9068  Vol. 28  Nº 4  2018  págs. 216-232
Perioperative hypersensitivity reactions constitute a first-line problem for anesthesiologists and allergists. Therefore, hospitals should have a consensus protocol for the diagnosis and management of these reactions. However, this kind of protocol is not present in many hospitals, leading to problems with treatment, reporting of incidents, and subsequent etiological diagnosis. In this document, we present a systematic review of the available scientific evidence and provide general guidelines for the management of acute episodes and for referral of patients with perioperative hypersensitivity reactions to allergy units. Members of the Drug Allergy Committee of the Spanish Society of Allergy and Clinical Immunology (SEAIC) have created this document in collaboration with members of the Spanish Anesthesia Society (SEDAR). A practical algorithm is proposed for the etiologic diagnosis, and recommendations are provided for the management of hypersensitive patients.
Autores: Justo, Xabier; Díaz, Iñaki, (Autor de correspondencia); Gil, Jorge Juan; et al.
Revista: IEEE JOURNAL OF BIOMEDICAL AND HEALTH INFORMATICS
ISSN 2168-2194  Vol. 22  Nº 3  2018  págs. 895 - 903
Allergy tests are routinely performed in most hospitals everyday. However, measuring the outcomes of these tests is still a very laborious manual task. Current methods and systems lack of precision and repeatability. This paper presents a novel mechatronic system that is able to scan a patient's entire arm and provide allergists with precise measures of wheals for diagnosis. The device is based on 3-D laser technology and specific algorithms have been developed to process the information gathered. This system aims to automate the reading of skin prick tests and make gains in speed, accuracy, and reliability. Several experiments have been performed to evaluate the performance of the system.
Autores: Gastaminza, Gabriel, (Autor de correspondencia); Lafuente, Alberto; Goikoetxea, María José; et al.
Revista: ANESTHESIA AND ANALGESIA
ISSN 0003-2999  Vol. 127  Nº 2  2018  págs. 414 - 419
BACKGROUND: Differentiating between immunoglobulin E (IgE)-dependent and IgE-independent hypersensitivity reactions may improve the etiologic orientation and clinical management of patients with allergic reactions in the anesthesia setting. Serum tryptase levels may be useful to discriminate the immune mechanism of allergic reactions, but the diagnostic accuracy and optimal cutpoint remain unclear. We aimed to compare the diagnostic accuracy of tryptase during reaction (TDR) alone and the TDR/basal tryptase (TDR/BT) ratio for discriminating IgE- from non-IgE-mediated allergic reactions, and to estimate the best cut point for these indicators. METHODS: We included 111 patients (45% men; aged 3-99 years) who had experienced an allergic reaction, even though the allergic reaction could be nonanaphylactic. Allergy tests were performed to classify the reaction as an IgE- or non-IgE-mediated one. The area under the curve (AUC) of the receiver operating characteristic analysis was performed to estimate the discriminative ability of TDR and TDR/BT ratio. RESULTS: An IgE-mediated reaction was diagnosed in 49.5% of patients, of whom 56% met anaphylaxis criteria. The median (quartiles) TDR for the IgE-mediated reactions was 8.0 (4.9-19.6) and 5.1 (3.5-8.1) for the non-IgE-mediated (P = .022). The median (quartiles) TDR/BT ratio was 2.7 (1.7-4.5) in IgE-mediated and 1.1 (1.0-1.6) in non-IgE-mediated reactions (P < .001). The TDR/BT ratio showed the greatest ability to discriminate IgE- from non-IgE-mediated reactions compared to TDR (AUC TDR/BT = 0.79 [95% confidence interval (CI), 1.1-2.2] and AUC TDR = 0.66 [95% CI, 1.1-2.2]; P = .003). The optimal cut point for TDR/BT (maximization of the sum of the sensitivity and specificity) was 1.66 (95% CI, 1.1-2.2). CONCLUSIONS: The TDR/BT ratio showed a significantly better discriminative ability than TDR to discriminate IgE- from non-IgE-mediated allergic reactions. An optimal TDR/BT ratio threshold of approximately 1.66 may be useful in clinical practice to classify allergic reactions as IgE- or non-IgE-mediated.
Autores: Navinés-Ferrer, A.; Serrano-Candelas, E.; Lafuente, Alberto; et al.
Revista: SCIENTIFIC REPORTS
ISSN 2045-2322  Vol. 8  Nº 1  2018  págs. 11628
The study of anaphylactoid reactions during perioperative procedures and anaesthesia represents a diagnostic challenge for allergists, as many drugs are administered simultaneously, and approximately half of them trigger allergic reactions without a verifiable IgE-mediated mechanism. Recently, mast cell receptor MRGPRX2 has been identified as a cause of pseudo-allergic drug reactions. In this study, we analyse the ability of certain drugs used during perioperative procedures and anaesthesia to induce MRGPRX2-dependent degranulation in human mast cells and sera from patients who experienced an anaphylactoid reaction during the perioperative procedure. Using a ß-hexosaminidase release assay, several drugs were seen to cause mast cell degranulation in vitro in comparison with unstimulated cells, but only morphine, vancomycin and cisatracurium specifically triggered this receptor, as assessed by the release of ß-hexosaminidase in the control versus the MRGPRX2-silenced cells. The same outcome was seen when measuring degranulation based on the percentage of CD63 expression at identical doses. Unlike that of the healthy controls, the sera of patients who had experienced an anaphylactoid reaction induced mast-cell degranulation. The degranulation ability of these sera decreased when MRGPRX2 was silenced. In conclusion, MRGPRX2 is a candidate for consideration in non-IgE-mediated allergic reactions to some perioperative drugs, reinforcing its role in mast cell responses and their pathophysiology.
Autores: D'Amelio, Carmen Mariana ; Ferrer, Marta; Martinez-Aranguren, R. M.; et al.
Revista: JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY
ISSN 0091-6749  Vol. 141  Nº 2  2018  págs. AB152 - AB152
Autores: Gamazo, C, (Autor de correspondencia); D'Amelio, Carmen Mariana ; Gastaminza, Gabriel; et al.
Revista: HUMAN VACCINES & IMMUNOTHERAPEUTICS
ISSN 2164-5515  Vol. 13  Nº 10  2017  págs. 2416-27
Allergic diseases are reaching epidemic proportions in developed countries. In particular, food allergy is increasing in prevalence and severity, thus becoming an important socioeconomic burden. Numerous cell types and cell populations, which form an intricate and balanced network, are involved in an immune response. This balance is occasionally disturbed, leading to the onset of different diseases, such as allergic diseases. Antihistamines and corticosteroids provide some degree of relief from the symptoms of allergic conditions. However, the only treatment that can revert the disease is immunotherapy. Nevertheless, specific immunotherapy has at least 2 major drawbacks: it is time-consuming, and it can produce local and even systemic allergic side effects. Immunotherapy's potential goes beyond our current knowledge of the immune response; nevertheless, we can still design strategies to reach a safer immune modulation for treating allergies. This review deals with the use of adjuvants to reduce the undesirable side effects associated with specific allergen immunotherapy. For example, nanoparticles used as immunoadjuvants are offering promising results in preclinical assays.
Autores: Azofra, J.; Echechipia, S.; Irazábal, B.; et al.
Revista: JOURNAL OF INVESTIGATIONAL ALLERGOLOGY AND CLINICAL IMMUNOLOGY
ISSN 1018-9068  Vol. 27  Nº 4  2017  págs. 252-60
Background: Allergy to mollusks has been the focus of fewer studies than allergy to crustaceans. Furthermore, allergy to mollusks is less well characterized. Objectives: To describe the clinical characteristics of mollusk-allergic patients, to identify the responsible allergens, and to assess cross reactivity. Methods: We performed a prospective multicenter study including 45 patients with mollusk allergy, which was diagnosed based on a suggestive clinical history and a positive skin test result with the agent involved. Fractions were identified using SDS-PAGE and immunoblotting. The proteins responsible were subsequently identified using mass spectrometry. ELISA inhibition studies were performed with mollusks, dust mites, and crustaceans. Results: We found that 25 patients (55%) were allergic to cephalopods, 14 (31%) to bivalves, and 11 (24%) to gastropods. Limpet was the third most frequent cause of allergy (15% of cases). In 31 patients (69%), the manifestation was systemic; 10 (22%) exhibited oral allergy syndrome, and 7 (15%) experienced contact urticaria. Most major allergens were found between 27 kDa and 47 kDa. ELISA inhibition assays revealed a high degree of inhibition of cephalopods and bivalves from all the groups of mollusks, mites, and crustaceans. Mass spectrometry identified tropomyosin, actin, and myosin as the major allergens. Conclusions: Cephalopods, especially squid, are the mollusks that most frequently trigger allergic symptoms. The very frequent occurr
Autores: Gamazo, C; Garcia-Azpiroz, M.; et al.
Revista: IMMUNOTHERAPY
ISSN 1750-743X  Vol. 9  Nº 15  2017  págs. 1205 - 1218
Background: Peanut allergy is the most common cause of anaphylaxis and food-related death. However, there is currently no approved immunotherapy treatment. Hence, this warrants the need for relevant and convenient animal models to test for adequate immunotherapies. Materials & methods: In this study, we compared three mouse strains: CD1, BALB/c and C57, to select a model of peanut allergy. After that, we conducted then a therapeutic study using an immunogenic peanut extract encapsulated in nanoparticles made with polymer Gantrez((R)) following the solvent displacement method. Results & conclusion: After implementing a dosing schedule with oral commercial peanut butter, the antibody responses, cytokine profiles and, above all, the anaphylaxis induced after a challenge with peanut proteins, showed that the outbred CD1 strain was the most susceptible to peanut sensitization. CD1 sensitized mice were orally immunized with three doses of the nanoparticle formulation capable of protecting them against the severe anaphylactic symptoms induced by the peanut challenge.
Autores: Serrano-Candelas, Eva; Martínez-Aranguren, Rubén; et al.
Revista: SCIENTIFIC REPORTS
ISSN 2045-2322  Vol. 7  Nº 1  2017  págs. 8985
Omalizumab (OmAb) is a humanized anti-IgE antibody approved for the treatment of chronic spontaneous urticaria (CSU). OmAb's mechanism of action is known to include actions on free IgE and on pre-bound IgE. However, OmAb is equally and rapidly effective against autoimmune and non-autoimmune urticaria where IgE involvement is not clear, suggesting the involvement of additional mechanisms of action. In this study, we sought to investigate the ability of OmAb to inhibit mast cell and basophil degranulation induced by sera from CSU patients. For this purpose, we performed a comparison between the in vitro incubation of sera from CSU patients treated with OmAb and the in vivo administration of OmAb in a clinical trial. We found that OmAb added in vitro to sera from CSU patients did not modify the ability of the sera to induce cell degranulation. Similarly, the sera from patients treated with OmAb in the context of the clinical trial who had a good clinical outcome maintained the capacity to activate mast cells and basophils. Thus, we conclude that the beneficial activity of OmAb does not correlate with the ability of patient sera to induce cell degranulation
Autores: Bernad, Amalia; Goikoetxea, María José; D'Amelio, Carmen Mariana ; et al.
Revista: ALLERGY
ISSN 0105-4538  Vol. 72  Nº Supl 103  2017  págs. 175
Autores: Ferrer, Marta; et al.
Revista: JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY
ISSN 0091-6749  Vol. 139  Nº 2  2017  págs. AB245
Autores: Justo, Xabier; Díaz, Iñaki; Gil, Jorge Juan; et al.
Revista: ALLERGY
ISSN 0105-4538  Vol. 71  Nº 8  2016  págs. 1095-102
The prick test is one of the most common medical methods for diagnosing allergies, and it has been carried out in a similar and laborious manner over many decades. In an attempt to standardize the reading of the test, many researchers have tried to automate the process of measuring the allergic reactions found by developing systems and algorithms based on multiple technologies. This work reviews the techniques for automatic wheal measurement with the aim of pointing out their advantages and disadvantages and the progress in the field. Furthermore, it provides a classification scheme for the different technologies applied. The works discussed herein provide evidence that significant challenges still exist for the development of an automatic wheal measurement system that not only helps allergists in their medical practice but also allows for the standardization of the reading and data exchange. As such, the aim of the work was to serve as guideline for the development of a proper and feasible system.
Autores: Azofra, J.; Gastaminza, Gabriel; et al.
Revista: INTERNATIONAL ARCHIVES OF ALLERGY AND IMMUNOLOGY
ISSN 1018-2438  Vol. 169  Nº 3  2016  págs. 181-188
LTP syndrome occurs in a non-Mediterranean area and is related to multiple sensitizations to foods and pollens such as plane tree and mugwort. In these pollen sensitizations, Pru p 3 seems to be the primary sensitizer.
Autores: D'Amelio, Carmen Mariana ; del Pozo, José Luis; et al.
Revista: PEDIATRIC ALLERGY AND IMMUNOLOGY
ISSN 0905-6157  Vol. 27  Nº 3  2016  págs. 320 - 321
Autores: D'Amelio, Carmen Mariana ; Gastaminza, Gabriel; et al.
Revista: PEDIATRIC ALLERGY AND IMMUNOLOGY
ISSN 0905-6157  Vol. 28  Nº 1  2016  págs. 96-99
Autores: Serrano-Candelas, E.; Martínez-Aranguren, R.; Valero, A.; et al.
Revista: CLINICAL AND EXPERIMENTAL ALLERGY
ISSN 0954-7894  Vol. 46  Nº 1  2015  págs. 92-102
Our data prove the existence of common mechanisms of action of OmAb in mast cells and basophils that would explain its effectiveness and rapid effect in chronic urticaria and provide a basis for its use in other diseases mediated by these cells.
Autores: Lafuente, Alberto; et al.
Revista: ANESTHESIA AND ANALGESIA
ISSN 0003-2999  Vol. 121  Nº 1  2015  págs. 117-23
Perioperative reactions are more common than previously reported. Mild hypersensitivity perioperative reactions-involving only skin-should be considered in evaluating patients because a substantial number of these reactions are IgE mediated.
Autores: Goikoetxea, María José; Cabrera, Paula Karin; et al.
Revista: JOURNAL OF INVESTIGATIONAL ALLERGOLOGY AND CLINICAL IMMUNOLOGY
ISSN 1018-9068  Vol. 25  Nº 4  2015  págs. 283-7
Fifteen of 201 patients with negative results for LTP in the SPT were sensitized to this allergen in the in vitro tests, and 18 of 41 patients with positive results for LTP in the SPT were not sensitized according to the in vitro tests. Seventeen of 186 patients with negative results for profilin in the SPT were sensitized to Phl p 12 by serum sIgE, and 30 out of 56 patients with positive results for profilin in SPT were not sensitized to Phl p 12 according to the other tests. Moderate agreement was observed between the 3 techniques studied. CONCLUSIONS: SPT is a sensitive technique for detecting sensitization to LTP and profilin. Its results are similar to those of in vitro techniques, especially in patients with negative SPT results for peach LTP and palm tree profilin.
Autores: D'Amelio, Carmen Mariana ; Aramendía, José Manuel; Yuste, JR; et al.
Revista: ANNALS OF ALLERGY ASTHMA AND IMMUNOLOGY
ISSN 1081-1206  Vol. 114  Nº 6  2015  págs. 534-5
Autores: Corominas, M.; Gastaminza, Gabriel; Lobera, T.;
Revista: JOURNAL OF INVESTIGATIONAL ALLERGOLOGY AND CLINICAL IMMUNOLOGY
ISSN 1018-9068  Vol. 24  Nº 4  2014  págs. 212-25
Strictly speaking, biological drugs are defined as drugs obtained using biotechnology that act on the immune system. They encompass monoclonal antibodies, fusion proteins, and cytokines. Although they are restricted to specific diseases, they have been increasingly used in recent years, with the consequent reporting of adverse reactions, many of which occur during the postmarketing phase. Because of the characteristics of adverse reactions, a new classification has been proposed. Hypersensitivity reactions are beta-type reactions and include infusion reactions and injection site reactions. In some cases, an immune mechanism mediated by IgE, IgG, or T cells is involved. Clinical symptoms vary widely, from skin reactions to anaphylaxis. Diagnostic studies are based on skin tests and in vitro tests (specific IgE, basophil activation test). Most are not standardized and are conducted in small groups of patients, thus making it impossible to obtain sensitivity and specificity values. With some biological drugs, desensitization protocols have proven successful. In this review, we discuss hypersensitivity reactions to biological drugs and the diagnostic tests used to assess these reactions.
Autores: Gamazo, C; Gastaminza, Gabriel; Ferrer, Marta; et al.
Revista: IMMUNOTHERAPY
ISSN 1750-743X  Vol. 6  Nº 7  2014  págs. 885-897
Allergic diseases are one of the most prevalent diseases, reaching epidemic proportions in developed countries. An allergic reaction occurs after contact with an environmental protein, such as inhalants allergens (pollen, animal dander, house dust mites), or food proteins. This response is known as part of the type 2 immunity that is counterbalanced by Type 1 immunity and Tregs. Widely used allergen-specific immunotherapy (IT) is a long term treatment to induce such switch from Th2 to Th1 response. However, conventional IT requires multiple allergen injections over a long period of time and is not free of risk of producing allergic reactions. As a consequence, new safer and faster immunotherapeutic methods are required. This review deals with allergen IT using nanoparticles as allergen delivery system that will allow a different way of administration, reduce dose and diminish allergen exposure to IgE bound to mast cells or basophils.
Autores: D'Amelio, Carmen Mariana ; Gastaminza, Gabriel;
Revista: PEDIATRIA RURAL Y EXTRAHOSPITALARIA
ISSN 1135-4410  Vol. 44  Nº 413  2014  págs. 133-139
Autores: Irache, Juan M.; Camacho, Ana Isabel; et al.
Revista: CLINICAL AND VACCINE IMMUNOLOGY
ISSN 1556-6811  Vol. 21  Nº 8  2014  págs. 1106 - 1112
In the last decade, peanut allergy has increased substantially. Significant differences in the prevalence among different countries are attributed to the type of thermal processing. In spite of the high prevalence and the severe reaction induced by peanuts, there is no immunotherapy available. The aim of this work was to evaluate the potential application of poly(anhydride) nanoparticles (NPs) as immunoadjuvants for peanut oral immunotherapy. NPs loaded with raw or roasted peanut proteins were prepared by a solvent displacement method and dried by either lyophilization or spray-drying. After physicochemical characterization, their adjuvant capacity was evaluated after oral immunization of C57BL/6 mice. All nanoparticle formulations induced a balanced T(H)1 and T(H)2 antibody response, accompanied by low specific IgE induction. In addition, oral immunization with spray-dried NPs loaded with peanut proteins was associated with a significant decrease in splenic T(H)2 cytokines (interleukin 4 [IL-4], IL-5, and IL-6) and enhancement of both T(H)1 (gamma interferon [IFN-¿]) and regulatory (IL-10) cytokines. In conclusion, oral immunization with poly(anhydride) NPs, particularly spray-dried formulations, led to a pro-T(H)1 immune response.
Autores: Lafuente, Alberto; et al.
Revista: ALLERGY
ISSN 0105-4538  Vol. 68  Nº 6  2013  págs. 820 - 822
Allergic skin tests have to be performed 4-6 weeks after an allergic anesthetic reaction. Patients with allergic reactions during anesthesia were prospectively included (n = 44). Skin tests were performed in two stages: (i) Stage 1 (S1), 0-4 days after the reaction; and (ii) Stage 2 (S2), 4-8 weeks after. Five (11.5%) surgical procedures were suspended due to the reaction. Positive skin tests were obtained in 25/44 patients (57%). Allergic diagnosis was carried out at S1 in 15/25 (60%) and at S2 in 10/25 (40%). Three patients resulted positive only in S1. Overall agreement among S1 and S2 skin tests was 70.45%. The kappa statistic was 0.41 (P-value = 0.002). Odds ratio of obtaining a false negative in S1 (compared with S2) was 3.33. Early allergological study is useful, could minimize false negatives, but should be considered as a complement to late skin tests.
Autores: Gastaminza, Gabriel; M Herdman; I Baiardini; et al.
Revista: JOURNAL OF INVESTIGATIONAL ALLERGOLOGY AND CLINICAL IMMUNOLOGY
ISSN 1018-9068  Vol. 23  Nº 7  2013  págs. 508-510
Autores: Goikoetxea, María José; Lafuente, Alberto; de la Borbolla Morán, J.M.; et al.
Revista: JOURNAL OF INVESTIGATIONAL ALLERGOLOGY AND CLINICAL IMMUNOLOGY
ISSN 1018-9068  Vol. 23  Nº 1  2013  págs. 69-71
Autores: García Gallardo, M.V.; Algorta, J.; Longo, N.; et al.
Revista: International Archives of Allergy and Immunology
ISSN 1018-2438  Vol. 160  Nº 3  2013  págs. 241 - 250
Autores: Lafuente, Alberto; et al.
Revista: CLINICAL AND EXPERIMENTAL ALLERGY
ISSN 0954-7894  Vol. 44  Nº 2  2013  págs. 270 - 277
Anaesthetic hypersensitivity reactions can be IgE- or not IgE-mediated and are a challenge to find the causal agent. Histamine and tryptase determination are classically considered useful in the diagnosis of these reactions. The aim of our study was to assess the diagnostic usefulness of plasma histamine and different cut-off points of serum tryptase. MethodsPatients suffering a reaction suggestive of hypersensitivity during general anaesthesia in Clinica Universidad de Navarra (2008-2012) were included. Serum tryptase and plasma histamine were measured at the time of the reaction and 2h later. Baseline tryptase was also determined. Four to eight weeks after the reaction an allergological study was performed to all the drugs or products involved in the reaction. ResultsSixty-five patients suffered an immediate hypersensitivity reaction during the period of the study. Thirty-seven patients (20 male) with median age 48years (12-79) were included because they completed allergological study, and histamine and tryptase were correctly obtained. Elevated plasma histamine was observed in 34 cases (92%). Tryptase exceeded twice the basal values in 10 patients (31%). Using different cut-off points of tryptase, the number of patients with elevated tryptase would be 15 patients (41%) for a cut-off point of 5g/L; 12 patients (32%) for a cut-off point of 8.23g/L; nine patients (24%) for 10.5g/L; and eight patients (22%) for 11.4g/L. The median tryptase level for the IgE-mediated reactions was 9.0g/L (2-70g/L) and 4.0g/L (3-13g/L) in non-IgE-mediated reactions (P<0.01). Median tryptase levels were higher in more severe reactions (grade 2 or 3) in comparison with grade 1. The best ratio for serum-tryptase-during-reaction/basal-serum-tryptase to discriminate between IgE and non-IgE reactions was 2.0. ConclusionThe best criterion for discriminating IgE- and non IgE-mediated hypersensitivity reactions in anaesthesia was a tryptase value exceeding twice the basal one.
Autores: Martínez-Aranguren, R.; Gamboa, P. M.; García-Lirio, E.; et al.
Revista: JOURNAL OF INVESTIGATIONAL ALLERGOLOGY AND CLINICAL IMMUNOLOGY
ISSN 1018-9068  Vol. 23  Nº 2  2013  págs. 125 - 126
Autores: Monecke, S.; et al.
Revista: EUROPEAN JOURNAL OF CLINICAL MICROBIOLOGY AND INFECTIOUS DISEASES
ISSN 0934-9723  Vol. 33  Nº 4  2013  págs. 651 - 658
The purpose of this investigation was to compare the genotypic profiles of Staphylococcus aureus isolated from atopic dermatitis (AD) patients and from control subjects, and to study the relationship between clinical severity, immune response, and genomic pattern of S. aureus isolated from AD patients. We selected 32 patients with AD and S. aureus skin colonization and 31 atopic controls with no history of AD who where asymptomatic carriers of S. aureus. Microarray-based genotyping was performed on S. aureus isolates. In AD patients, clinical severity was assessed using the Scoring Atopic Dermatitis index and total IgE levels and staphylococcal superantigen-specific IgE levels (SEA, SEB, SEC, TSST1) were determined. The genes lukE, lukD, splA, splB, ssl8, and sasG were more frequent in isolates from AD patients. CC30 was more common in isolates from atopic controls than in AD patients. There was a correlation between total IgE and clinical severity, but an association between clinical severity, immune response, and the presence of S. aureus superantigen genes, including enterotoxin genes, could not be demonstrated. Finally, a correlation was found between AD severity and other S. aureus genes, such as sasG and scn. S. aureus factors besides superantigens could be related to the worsening and onset of AD.
Autores: Gastaminza, Gabriel; N Saiz; et al.
Revista: ANNALS OF ALLERGY ASTHMA AND IMMUNOLOGY
ISSN 1081-1206  Vol. 111  Nº 6  2013  págs. 571-573
Autores: Gastaminza, Gabriel;
Revista: PEDIATRIA RURAL Y EXTRAHOSPITALARIA
ISSN 1135-4410  Vol. 42  Nº 396  2012  págs. 6 - 21
Autores: Amelio Garofalo, C.M.; Gastaminza, Gabriel;
Revista: Pediatría rural y extrahospitalaria
ISSN 1135-4410  Vol. 42  Nº 400  2012  págs. 134-140
Autores: Ferrer, Marta; Sanz, María Luisa; Gastaminza, Gabriel; et al.
Revista: ANALES DEL SISTEMA SANITARIO DE NAVARRA
ISSN 1137-6627  Vol. 35  Nº 1  2012  págs. 41 - 51
La inmunoterapia para el tratamiento de enfermedades alérgicas implica ciertas desventajas, que pueden ser reducidas si se emplean adyuvantes adecuados, que sean capaces de amplificar la respuesta inmune con un efecto alergénico mínimo. En ese contexto, las formas farmacéuticas más prometedoras para aumentar la eficacia y seguridad de la inmunoterapia, parecen ser las micro y nanopartículas, de polímeros biodegradables y liposomas. En esta revisión describimos estudios previos de nuestro grupo en los que empleamos como adyuvante nanopartículas Gantrez® AN y demostramos su capacidad de estimular el sistema inmune. Empleamos dos tipos de nanopartículas, con y sin lipopolisacárido de Brucella ovis como inmunomodulador en un modelo de ratón alérgico a L. perenne. Encontramos que los ratones sensiblizados a Phleum cuando recibían inmunoterapia con nanopartículas Lolium-Gantrez® estaban protegidos de la anafilaxia inducida por el alérgeno tanto en las tasas de mortalidad como en los niveles de MCP-1. Probamos asimismo estas formulaciones por vía oral en un modelo animal sensibilizado a ovoalbúmina y comprobamos que les protegía también del shock anafiláctico.
Autores: Goikoetxea, María José; Sanz, María Luisa; et al.
Revista: ANNALS OF ALLERGY ASTHMA AND IMMUNOLOGY
ISSN 1081-1206  Vol. 108  Nº 4  2012  págs. 286-7
Autores: Irache, Juan M.; Ferrer, Marta; Espuelas, S; et al.
Revista: Journal of investigational allergology & clinical immunology
ISSN 1018-9068  Vol. 22  Nº Suppl 1  2012  págs. 7 - 15
Autores: Gastaminza, Gabriel;
Revista: Pediatría rural y extrahospitalaria
ISSN 1135-4410  Vol. 41  Nº 391  2011  págs. 174 - 192
Autores: Cabrera, Paula Karin; Goikoetxea, María José; et al.
Revista: Clinical & Experimental Allergy (print)
ISSN 0954-7894  Vol. 41  Nº 10  2011  págs. 1440 - 1446
Component-based microarray ISAC CRD103 and whole-allergen CAP showed high Se and Sp diagnosing equally grass and cypress pollen allergy. The cut-off point for each allergen should be properly applied for both techniques.
Autores: Cabrera, Paula Karin; Escalada, J; Goikoetxea, María José; et al.
Revista: JOURNAL OF INVESTIGATIONAL ALLERGOLOGY AND CLINICAL IMMUNOLOGY
ISSN 1018-9068  Vol. 21  Nº 5  2011  págs. 417-9
The precipitin technique has been used in insulin resistance and immunity studies since the 1940s [7]. In the case described, the technique proved, once again, to be a valid method for choosing the most appropriate insulin. However, whether or not an immunological mechanism was involved in the lipoatrophic process remains uncertain, and further studies with adequate immunological assessment are necessary.
Autores: Gastaminza, Gabriel; Algorta, J.; Uriel, O.; et al.
Revista: TRIALS
ISSN 1745-6215  Vol. 9  Nº 12  2011  págs. 191
Further studies are needed to evaluate latex-sublingual immunotherapy, since efficacy could not be demonstrated in adult patients with avoidance of the allergen.
Autores: Audícana, MT; Barasona, MJ; Corominas, M; et al.
Revista: JOURNAL OF INVESTIGATIONAL ALLERGOLOGY AND CLINICAL IMMUNOLOGY
ISSN 1018-9068  Vol. 21  Nº 7  2011  págs. 496 - 506
Autores: Gastaminza, Gabriel; Goikoetxea, María José; et al.
Revista: Journal of investigational allergology & clinical immunology
ISSN 1018-9068  Vol. 21  Nº 2  2011  págs. 108 - 112
Desensitization is a useful procedure in patients who are allergic to their chemotherapy agents..
Autores: Urbain, C.M.; Gastaminza, Gabriel;
Revista: Pediatría rural y extrahospitalaria
ISSN 1135-4410  Vol. 41  Nº 388  2011  págs. 70 - 77
Autores: Gastaminza, Gabriel;
Título: Aerobiología
Revista: PEDIATRIA RURAL Y EXTRAHOSPITALARIA
ISSN 1135-4410  Vol. 40  Nº 382  2010  págs. 198 - 207
Autores: Gastaminza, Gabriel;
Revista: Pediatría rural y extrahospitalaria
ISSN 1135-4410  Vol. 40  Nº 383  2010  págs. 230 -42
La clase de los insectos es muy amplia y se divide en diferentes órdenes, según diferentes características como: la presencia o no de alas en el adulto, tipo de metamorfosis, aparato bucal, etc. En un primer término se dividen en los insectos alados (Pterigotas) y los no alados (Apterigotas). Dentro de cada una de estas divisiones hay numerosas subdivisiones.
Autores: Gastaminza, Gabriel;
Título: Conjuntivitis
Revista: Pediatría rural y extrahospitalaria
ISSN 1135-4410  Vol. 40  Nº 378  2010  págs. 69 - 81
Autores: Goikoetxea, María José; Gastaminza, Gabriel;
Revista: Pediatría rural y extrahospitalaria
ISSN 1135-4410  Vol. 40  Nº 376  2010  págs. 7 - 12
Autores: Gastaminza, Gabriel;
Revista: Pediatría rural y extrahospitalaria
ISSN 1135-4410  Vol. 40  Nº 385  2010  págs. 294 - 303
Autores: Gastaminza, Gabriel;
Revista: Pediatría rural y extrahospitalaria
ISSN 1135-4410  Vol. 40  Nº 380  2010  págs. 133-137
Autores:  et al.
Revista: Journal of investigational allergology & clinical immunology
ISSN 1018-9068  Vol. 20  Nº 5  2010  págs. 446 - 447
Autores: Ferrer, Marta; Gamazo, C; Irache, Juan M.; et al.
Revista: Journal of Allergy and Clinical Immunology
ISSN 0091-6749  Vol. 125  Nº 2 Supl.1  2010  págs. AB 220
RATIONALE: In order to develop a suitable peanut allergen immunotherapy we need to depict the immune response to different forms of the same allergen. METHODS: We analyzed protein content and allergen distribution in four different types of peanut extract: crude, crude delipidated, roasted and roasted delipidated. We then identified in the same extracts allergen components using SDS-PAGE technique. Furthermore, we immunized six week-old C57BL/6 mice, intradermal or orally with each extract. Serum and fece samples were obtained on days 0, 7, 14, 21, 28, 35 and 42 after immunization and measured peanut specific IgG1 and IgG2 through indirect ELISA. RESULTS: Protein content in crude peanut extract was 30% higher than roasted extract. No differences were observed in protein content between lipid and non-lipid extract. When allergens were studied, we only observed a significant increase in Arah3 in roasted peanut extract. Regarding the immune response, all four extracts induced a Th2 response (IgG1) through both administration routes. Intradermal sensitization induced higher IgG1 and IgG2 levels than oral sensitization. Maximum IgG1 and IgG2 peak was reached on the 3rd and 4rd week. Roasted delipidated extract induced a significant stronger immune reaction than the other extracts. CONCLUSIONS: The immune response seems to be more dependent on the allergen rather than the route of administration. Roasting peanut increases significantly in both intradermal and oral route its allergen potency.
Autores: Quan, Paola Leonor; D'Amelio, Carmen Mariana ; Gastaminza, Gabriel; et al.
Libro:  101 casos clínicos en dermatitis de contacto
2019  págs. 290 - 293
Autores: Gastaminza, Gabriel; D'Amelio, Carmen Mariana ; Bernad, Amalia; et al.
Libro:  58 casos clínicos en dermatitis de contacto
2017  págs. 118 - 121
Autores: Gastaminza, Gabriel; Fernández Sánchez, F.J.; Laguna Martínez, JJ; et al.
Libro:  Tratado de Alergología
Vol. Tomo IV  Nº 20  2015  págs. 1571-1588
Autores: D'Amelio, Carmen Mariana ; Goikoetxea, María José; Ferrer, Marta; et al.
Libro:  Casos clínicos en dermatitis de contacto
2015  págs. 90-93
Autores: Gastaminza, Gabriel; Garcés Sotillos, M. M.; Rojas Hijazo, B.; et al.
Libro:  Tratado de alergología
Vol. 3  2015  págs. 835 - 858