GLAUCE HIROMI YONAMINE
Projetos de Pesquisa
Unidades Organizacionais
Instituto da Criança, Hospital das Clínicas, Faculdade de Medicina
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conferenceObject Evolution of milk-specific IgE antibody levels and its fractions during tolerance development in cow's milk allergic patients(2012) BECK, C.; CASTRO, A.; GUSHKEN, A.; WATANABE, L.; BRANDAO, A.; YONAMINE, G.; PASTORINO, A.; JACOB, C.Background: Food allergy affects about 6% of children and cow’s milk (CM) is the most important allergen. The majority of patients used to become tolerant during the first 3 years of life, but nowadays tolerance is being achieved later. Casein (C), alpha-lactalbumin (α) and beta-lactoglobulin (β) are considered as some of the major allergens. Until now, no study has evaluated the correlation among the whole cow’s milk (WCM) IgE antibody levels (IgE ab) and its fractions (C, α and β) during the tolerance development in CMA patients. Method: It was a retrospective study that included patients with previous diagnosis of CMA who developed tolerance during follow-up. It was included 31 IgE-mediated CMA patients (19 male: 12 female), median age of the first symptoms was 1 year. CMA was defined as a positive double blind placebo-controlled food challenge, open challenge or confirmed anaphylaxis plus cow’s milk-specific IgE positive (higher than 3.5 JU/l or positive skin prick test), and tolerance was defined as acceptance of cow milk without previous symptoms. Specific IgE analysis to WCM, α, β, and C were performed at three moments: initial (time 1), in the middle of the follow-up (time 2) and at the tolerance diagnosis (time 3). The chosen point during follow-up was that which corresponded to half of the period until tolerance was reached. The correlations among whole mil IgE ab and its fractions in those moments were evaluated with Spearman correlation test. Result: Ther values for whole cow’s milk IgE ab and each fraction according Spearman test are described in the following Table 1 Among all analysis, the correlation between whole cow’s milk and casein IgE ab and whole cow’s milk and alfalacto-albumin IgE ab showed adequater values at all moments of evaluations. Conclusion: These results can indicate that casein and alfalacto-albumin IgE ab showed similar behavior to WCM, and then the sequential evaluation through whole cow’s milk IgE ab levels may be enough for monitoring CMA patients until the tolerance development. Time Alpha-lactalbumin IgE ab Beta-lactoglobulin IgE ab Casein IgE ab 1 0.81 (0.63–0.90) 0.71 (0.46–0.85) 0.81 (0.64–0.91) 2 0.82 (0.65–0.91) 0.66 (0.39–0.82) 0.82 (0.65–0.91) 3 0.82 (0.64–0.91) 0.79 (0.60–0.90) 0.76 (0.54–0.90)- Rate and determinants of non-adherence to a gluten-free diet and nutritional status assessment in children and adolescents with celiac disease in a tertiary Brazilian referral center: a cross-sectional and retrospective study(2018) RODRIGUES, Maraci; YONAMINEZ, Glauce Hiromi; SATIRO, Carla AlineBackground: Compliance with a gluten-free diet (GFD) is difficult at all ages but particularly for teenagers due to social, cultural, economic, and practical pressures. The multidisciplinary team responsible for the treatment of patients with celiac disease and give support to their parents plays a special role on strengthening GFD and assessing the nutritional and physical health. Methods: A cross-sectional and retrospective study including patients under 20 years of age, with biopsyconfirmed CD, followed regularly at the Department of Pediatrics, Division of Gastroenterology, Hospital das Clinicas, University of Sao Paulo, School of Medicine, Sao Paulo, Brazil, were surveyed using a questionnaire and serologic test applied between November 2011 and February 2012. A retrospective chart review of these patients was performed to collect the anthropometric data along with the results of the serologic test performed at the time of diagnosis and after at least 1 year of treatment with a GFD. Results: We evaluated 35 patients aged between 2.4 and 19.9 years. Of these 68.6% were female, 88.6% had the typical form of the disease and 51.4% had other comorbidities. The mean age at diagnosis was 5.4 years. Despite dietary guidance, 20% reported non-adherence to the diet. Most children recovered the weight and height deficit after 5 years of treatment, and in some children, excessive weight gain became a concern. Conclusion: The majority of transgressions occurred intentionally at home or at parties. There was a risk of excessive weight gain, especially in the first two years of treatment. More alternatives and easier access to low cost gluten-free foods, increasing the discussion about the benefits of adhering to a GFD among patients, families, and the general population, besides the acquisition of self-management skills, are crucial to fostering independent children and adolescents who have the knowledge and tools to manage life with CD.
- Baked milk tolerant patient: Is there any special feature?(2017) BARBOSA, C. P. G.; CASTRO, A. P. M.; YONAMINE, G. H.; GUSHKEN, A. K. F.; BECK, C. M. L.; MACEDO, P. R. C.; DORNA, M. B.; SANTOS, C. J. N.; PASTORINO, A. C.; JACOB, C. M. A.Background: Determining whether patients with cow's milk allergy (CMA) can tolerate foods produced with baked milk could provide a better quality of life, a better prognosis, and an option for desensitization. Objectives: The aim of this study was to identify which patients over four years of age with persistent CMA could tolerate baked milk, to compare the clinical and laboratory characteristics of reactive and non-reactive groups and to describe their clinical evolution. Materials and methods: A cross-sectional study was conducted (January/13 to November/14) that included all the patients followed at a food allergy center who met the inclusion criteria. The patients underwent an oral food challenge (OFC) with a muffin (2.8 g of cow's milk protein). To exclude cow's milk (CM) tolerance, the patients were subsequently challenged with unheated CM. Results: Thirty patients met all the inclusion criteria. Fourteen patients (46.7%) were considered non-reactive to baked milk and reactive to unheated CM. When the groups that were reactive and non-reactive to baked milk were compared, no statistically significant differences in clinical features were found. The prick test for alpha-lactalbumin (p = 0.01) and casein (p = 0.004) and the serum specific IgE for casein (p = 0.05) presented statistical differences. After one year, none of the patients who were reactive to baked milk were ingesting CM, while 28% of the tolerant patients were consuming fresh CM (p= 0.037). Conclusions: Baked milk can be tolerated by patients with CMA, especially those with lower levels of casein and a-lactalbumin. This option can improve quality of life and accelerate tolerance.
- Cow's milk allergy: Evaluating tolerance through skin-prick test(2016) NEVES, Flavia Valenca De Oliveira; BECK, Cleonir De Moraes Lui; GUSHKEN, Andrea Keiko Fujinami; YONAMINE, Glauce Hiromi; CASTRO, Ana Paula Beltran Moschione; DORNA, Mayra De Barros; SANTOS, Cristiane De Jesus Nunes Dos; PASTORINO, Antonio CarlosObjective: To evaluate the wheal diameter in allergy skin-prick tests (SPT) with cow's milk extract (CM) comparing tolerant and persistent patients. Method: A retrospective cohort study involving database analysis of children with diagnosis of cow's milk protein allergy (CMPA) mediated by immunoglobulin E in a specialized outpatient clinic that regularly performed SPT between January 2000 and July 2015. Patients were allocated into two groups: tolerant or persistent. Comparisons were made at diagnosis and over time between tolerant and persistent patients using Fisher's, Mann-Whitney or Wilcoxon tests and significance level at 5%. Results: After applying inclusion and exclusion criteria, the sample includes 44 patients (29 tolerant and 15 who persisted with CMPA). In the tolerant group, the medians of SPT were: 6 mm at diagnosis and 2 mm at the development of tolerance; a significant difference (p<0.0001) was found. In the persistent group, the median SPT at diagnosis was 7 mm, while in the last SPT it was 5 mm, with no statistical difference (p=0.173). The comparison of medians in the last SPT between groups was significant (p=0.001), with a reduction greater than 50% in SPT in the tolerant group. Conclusion: Serial SPTs were useful for diagnosis, and a decrease higher than 50% in diameter can indicate the moment to perform oral food challenge (OFC) tests, helping to detect tolerance in CMPA.
conferenceObject Sensitisation to foods and dust mite in Brazilian pediatric patients with atopic dermatitis(2012) SWENSSON, A.; CASTRO, A.; CASAGRANDE, R.; BITTENCOURT, T.; YONAMINE, G.; PASTORINO, A.; JACOB, C.Background: Atopic dermatitis (AD) is a complex disease that can be or not related to atopy. The IgE levels and the presence of sensitisation has been associated to AD severity. The aim of this study is to evaluate the allergen sensitisation profile in patients with moderate or severe atopic dermatitis in Brazilian patients from an allergy reference center. Methods: About 66 patients with diagnosis of atopic dermatitis according Hanifin e Rajka criteria (mean age 10 years) followed at a reference center for allergic disease in pediatric patients were included. The severity was evaluated according SCORAD (SCORing Atopic Dermatitis) criteria. Specific IgE was measured to the following allergens: Blomia tropicalis, D peteronyssinus, egg white, cow’s milk and its fractions. Sensitisation was considered positive when the ImmunoCAP values were ¡Y 0.35 kU/l and multi sensitisation was considered when patients presented positive specific IgE for all allergens tested. Table 1 Hapten Total, positive (n,%) Total, clinically relevant (n,%) Children, positive (n,%) Children, clinically relevant (n,%) Adolescents, positive (n,%) Adolescents, clinically relevant (n,%) Nickel sulphate 5% pet. 44 (34.6) 36 (28.3) 19 (29.7) 14 (21.9) 25 (39.7) 22 (34.9) Cobalt chloride 1% pet. 28 (22.0) 15 (11.8) 16 (25.0) 9 (14.1) 12 (19.0) 6 (9.5) Potassium dichromate 0.5% pet. 26 (20.5) 15 (11.8) 19 (29.7) 10 (15.6) 7 (11.1) 5 (7.9) Paraphenylenediamine 1% pet. 12 (9.4) 6 (4.7) 8 (12.5) 5 (7.8) 4 (6.3) 1 (1.6) Propolis 10% pet. 12 (9.4) 5 (3.9) 11 (17.2) 5 (7.8) 1 (1.6) 0 (0.0) Palladium chloride 2% pet. 12 (9.4) 4 (3.1) 6 (9.4) 2 (3.1) 6 (9.5) 2 (3.2) Fragrance Mix I 18% pet. 10 (7.9) 4 (3.1) 4 (6.3) 2 (3.1) 6 (9.5) 2 (3.2) Neomycin sulphate 20% pet. 6 (4.7) 2 (1.6) 4 (6.3) 2 (3.1) 2 (3.2) 0 (0.0) Balsam of Peru (Myroxylon pereirae ) 25% pet. 6 (4.7) 1 (0.8) 4 (6.3) 1 (1.6) 2 (3.2) 0 (0.0) Colophonium 20% pet. 5 (3.9) 4 (3.1) 2 (3.1) 2 (3.1) 3 (4.8) 2 (3.2) Wool alcohols (lanolin) 30% pet. 5 (3.9) 3 (2.4) 3 (4.7) 3 (4.7) 2 (3.2) 0 (0.0) Paraben Mix 16% pet. 4 (3.1) 4 (3.1) 3 (4.7) 3 (4.7) 1 (1.6) 1 (1.6) Kathon CG (MI/MCI) 0.01% aqua 4 (3.1) 2 (1.6) 3 (4.7) 2 (3.1) 1 (1.6) 0 (0.0) Results: Among 66 patients included, 12 presented severe AD and 54 moderated. Sixty two of the 66 (93%) patients studied showed positive sensitization to any of the allergens, being aeroallergens the most prevalent (53/56), followed by egg white (29/53) and milk (31/66). Serum levels of specific IgE to aerollergens were significantly higher than for food allergens (P< 0.001). Specific IgE levels did not differ according severity (P> 0.05 for all allergens evaluated About 23 patients presented multi sensitization (17 moderate and six severe) without significant difference between both groups. Conclusion: There was an elevate rate of sensitisation in this group of patients being aeroallergens the most frequent and with higher specific IgE levels. AD severity did not contribute to increase sensitisation. More studies should be performed in order to evaluate if these findings can lead to specific therapeutic strategies as specific immunotherapy or food avoidance.- Oral and enteral nutrition therapy in inflammatory bowel diseases among the pediatric population: a literature review(2020) SOUZA, Gabriela Neves de; DRAGHI, Patricia Ferrante; YONAMINE, Glauce HiromiObjectives: To review the literature on oral and enteral nutrition therapy and investigate the evidence of its efficacy as a treatment, as well as in preventing relapses and reducing symptoms of inflammatory bowel diseases in the pediatric population. Data source: We performed a bibliographic search in the PubMed, Web of Science, and Latin American and Caribbean Health Sciences Literature (Literatura Latino-Americana e do Caribe em Ciencias da Saude - Lilacs) databases, using the keywords ""inflammatory bowel disease,"" ""diet,"" and ""diet therapy"" in English and Portuguese, with filters for pediatric studies published in the previous five years. Data summary: We selected 16 articles for this study, nine on exclusive and/or partial enteral nutrition and seven on modified oral diets, such as the specific carbohydrate diet (SCD) and the Crohn's Disease exclusion diet (CDED). The studies found evaluated the anthropometric profile of patients and the inflammatory profile of diseases in children before and after the introduction of each specific nutrition therapy. All interventions presented positive changes in these parameters; however, the results were inconclusive regarding the efficacy of SCD and CDED in the treatment and prevention of relapses. Conclusions: Exclusive enteral nutrition has proven to be effective in inducing remission of Crohn's Disease, and the use of partial enteral nutrition for maintenance treatment has shown promising results. Other modified oral diets are inconclusive concerning their effectiveness, requiring further randomized controlled clinical trials.
- IgE-mediated cow's milk allergy in Brazilian children: Outcomes of oral food challenge(2023) AQUILANTE, Bruna Pultrini; CASTRO, Ana Paula Beltran Moschione; YONAMINE, Glauce Hiromi; DORNA, Mayra de Barros; BARP, Mariana Fernandes; MARTINS, Tatiana Paskin da Rosa; PASTORINO, Antonio CarlosBackground: Oral food challenge (OFC) is useful for diagnosing food allergies and assessing tolerance, but severe reactions may occur during the procedure.Objective: To characterize the frequency and severity of reactions during cow's milk (CM) OFCs.Methods: A cross-sectional study was conducted to analyze the outcome of cow's milk oral food challenges (CMOFCs) performed to confirm IgE-mediated CM allergy or to assess food tolerance. CM was given first as baked milk (BM), followed by whole CM if there was no prior reaction to BM. An OFC was considered positive if IgE-mediated symptoms developed up to 2 h after ingestion. Symptoms were described and variables including age at OFC, prior anaphylaxis, other atopic diseases, and skin test results were compared according to the OFC outcomes.Results: A total of 266 CMOFCs were performed, including 159 patients with a median age of 6.3 years old. One hundred thirty-six tests were positive and 62 resulted in anaphylaxis. Thirty-nine anaphylactic reactions were observed up to 30 min after the first dose. Severe anaphylaxis (car-diovascular and/or neurological involvement) was reported in 5 tests. A second dose of epinephrine was required in 3 tests, and 1 presented a biphasic response. Younger patients had a higher risk of anaphylaxis during baked milk oral food challenge (BMOFC) (p = 0.009). The fre-quency of anaphylaxis was higher in patients submitted to BM (p = 0.009).Conclusions: Anaphylaxis is a known complication of CMOFCs even when there is no prior anaphylaxis or when conducted with baked products. This study reinforces the importance of conducting OFC in appropriate settings with a well-trained team.
bookPart Alergia alimentar(2022) JACOB, Cristina Miuki Abe; CASTRO, Ana Paula Beltran Moschione; GUSHKEN, Andrea Keiko Fujinami; YONAMINE, Glauce Hiromi- Rate and determinants of non-adherence to a gluten-free diet and nutritional status assessment in children and adolescents with celiac disease in a tertiary Brazilian referral center: a cross-sectional and retrospective study (vol 18, 2018)(2018) RODRIGUES, Maraci; YONAMINE, Glauce Hiromi; SATIRO, Carla Aline Fernandes
- Double-blind, placebo-controlled food challenges in Brazilian children: Adaptation to clinical practice(2013) GUSHKEN, A. K. F.; CASTRO, A. P. M.; YONAMINE, G. H.; CORRADI, G. A.; PASTORINO, A. C.; JACOB, C. M. A.Background: A double-blind, placebo-controlled food challenge (DBPCFC) is considered the gold standard for diagnosing food allergy, but because of methodological difficulties it is rarely conducted in clinical practice, especially in paediatric patients. The purpose of the study was to propose a DBPCFC protocol that is adapted to our conditions for the diagnosis of an IgE-mediated cow's milk allergy (CMA) in a Brazilian reference centre for paediatric allergies. Methods: This study includes the experimental phase (choice of materials, adjustments made to protocols described in the literature) and the test execution phase. DBPCFCs were performed in 58 patients aged 1-15 years who were separated into two groups: Group 1 (n = 39), sex 1.6 M:F, 5.3 years median age, suggestive history of IgE-mediated CMA; and Group 2 (n = 19), sex 1.4 M:F, 8.3 years median age with symptoms not associated with milk ingestion and laboratory data not compatible with IgE-mediated CMA. Results: The materials were standardised for testing: containers and disposable products, low-lactose cow's milk (CM) and vehicles, such as natural fruit juice, vegetable soup and soybean-based beverages. Each DBPCFC was performed in a single day with two blind, randomised phases with a 2-h interval between them. The milk doses were gradually increased and offered in regular intervals of 15-30 min. Following negative or inconclusive results, patients underwent an open oral challenge test with 200 mL of low-lactose CM. Conclusions: The proposed adaptation for the DBPCFC allowed to implement this important test for the diagnosis of IgE-mediated CMA in a reference centre for paediatric allergies. It was considered feasible and safe if performed in an appropriate setting with physician supervision.