ABSTRACT
El síndrome de enterocolitis inducido por proteínas de los alimentos (FPIES, por su sigla en inglés) es una reacción alérgica no mediada por inmunoglobulina E (IgE) con síntomas gastrointestinales, como vómitos y diarrea. El diagnóstico se basa en criterios clínicos y en una prueba de provocación para confirmarlo. Es una enfermedad desconocida en las unidades neonatales, debido a la inespecificidad de los síntomas en los recién nacidos. La cifra de metahemoglobina elevada es una opción sencilla de aproximación diagnóstica. Se describe el caso clínico de un recién nacido que ingresa al servicio de urgencias por deshidratación, letargia, vómitos, diarrea y acidosis metabólica grave con elevación de metahemoglobina, con mejora clínica y recuperación total tras el inicio del aporte de fórmula elemental. La sospecha diagnóstica se confirmó tras la prueba de provocación positiva.
Food protein-induced enterocolitis syndrome (FPIES) is a non-IgE mediated allergic reaction with gastrointestinal symptoms, such as vomiting and diarrhea. FPIES diagnosis is based on clinical criteria and on a food challenge test. It is an unknown disease in neonatal units due to its nonspecific symptoms in newborn infants. An elevated methemoglobin level is a simple way to approach diagnosis. Here we describe a clinical case of a newborn admitted to the emergency department because of dehydration, lethargy, vomiting, diarrhea, severe metabolic acidosis, and a high methemoglobin level. Clinical improvement and complete recovery was achieved after initiation of elemental formula. The diagnostic suspicion was confirmed after a positive challenge test.
Subject(s)
Humans , Infant, Newborn , Acidosis/diagnosis , Acidosis/etiology , Enterocolitis/diagnosis , Enterocolitis/etiology , Food Hypersensitivity/complications , Food Hypersensitivity/diagnosis , Syndrome , Vomiting/etiology , Methemoglobin , Dietary Proteins , Diarrhea/etiologyABSTRACT
El parto prematuro, la cesárea, el uso de antibióticos y la lactancia materna limitada son señalados como responsables en parte del aumento de enfermedades crónicas no transmisibles en niños, como las alergias, principalmente la alergia a la proteína de la leche de vaca (APLV). Quienes desarrollan enfermedades alérgicas muestran diferencias en la composición de su microbiota intestinal durante los primeros meses de vida, en comparación con los que no lo hacen. Las intervenciones tempranas para modular la microbiota intestinal y el sistema inmunológico pueden ser herramientas claves para el abordaje y tratamiento de la APLV. El criterio clínico y el trabajo interdisciplinario de alergólogos, gastroenterólogos, inmunólogos, microbiólogos y nutricionistas le permitirá al pediatra lograr un adecuado diagnóstico y un tratamiento oportuno. En este contexto, el empleo de bióticos (prebióticos, probióticos, sinbióticos y posbióticos) como herramientas nutricionales complementarias tiene un presente con sustento científico y un futuro promisorio para la prevención y tratamiento de estas patologías.
Preterm birth, C-section, antibiotic use, and limited breastfeeding are blamed in part for the increasing incidence of chronic noncommunicable diseases among children, such as allergies, mainly cow's milk protein allergy (CMPA). Those who develop allergic diseases, against those who do not, show differences in the composition of their gut microbiota during the first months of life. Early interventions to modulate the intestinal microbiota and the immune system may be the key tools for the management of CMPA. Clinical judgment and the interdisciplinary work of allergists, gastroenterologists, immunologists, microbiologists, and nutritionists will allow pediatricians to achieve an adequate diagnosis and a timely treatment. In this setting, the use of biotics (prebiotics, probiotics, synbiotics, and postbiotics) as supplementary dietary tools is scientifically supported at present and seems to be very promising for the prevention and treatment of these conditions.
Subject(s)
Humans , Animals , Infant, Newborn , Milk Hypersensitivity , Probiotics/therapeutic use , Premature Birth , Food Hypersensitivity/diagnosis , Food Hypersensitivity/therapy , Cattle , ImmunomodulationABSTRACT
Abstract Introduction: The prevalence and incidence of gastrointestinal food allergy has increased in recent years with high associated costs, but usually with a good prognosis; nonetheless, in Colombia, information is scarce. This study intends to describe demographic variables, symptomatology, clinical picture, nutritional status, management, and natural history of the disease, determine its prevalence in the Colombian pediatric population by age group, and describe its direct costs. Materials and methods: The study was conducted in three phases. In the first, we estimated the prevalence of the disease from the review of the RIPS and MIPRES databases between 2015 and 2019. Secondly, we checked the medical records selected per the inclusion and exclusion criteria for characterization and costs. Lastly, through a telephone survey, we asked about the current state of the disease and its resolution. Results: The estimated prevalence adjusted for underreporting was 0.04 % for the pediatric population and 0.148 % for those under five. The most frequent diagnoses were allergic proctocolitis (59.3 %) and secondary functional gastrointestinal disorders (13.9 %). The most frequent allergen was cow's milk protein. Early management is related to an excellent nutritional prognosis. Direct costs are mainly related to using formulas (92 %) and medical appointments (3.4 %); 89 % of parents consider that the food allergy will resolve over time. Conclusions: This retrospective study is the most extensive in Colombia, drawing local conclusions that may be compared with other countries.
Resumen Introducción: la prevalencia e incidencia de la alergia alimentaria gastrointestinal ha aumentado en los últimos años, con importantes costos asociados, pero usualmente de buen pronóstico; sin embargo, en Colombia la información es escasa. Los objetivos del presente estudio son describir variables demográficas, sintomatología, clínica, estado nutricional, manejo e historia natural de la enfermedad; conocer su prevalencia en la población pediátrica colombiana por grupo etario, y describir sus costos directos. Materiales y métodos: el estudio se desarrolló en 3 fases: en la primera, se estimó la prevalencia de la enfermedad a partir de la revisión de las bases RIPS y MIPRES de 2015 a 2019; en la segunda, se revisaron las historias clínicas seleccionadas por los criterios de inclusión y exclusión para caracterización y costos; y en la tercera, por medio de una encuesta telefónica se interrogó el estado actual de la enfermedad y su resolución. Resultados: la prevalencia estimada ajustada por subregistro fue de 0,04 % para la población pediátrica y de 0,148 % para los menores de 5 años. Los diagnósticos más frecuentes fueron proctocolitis alérgica (59,3 %) y trastornos gastrointestinales funcionales secundarios (13,9 %). El alérgeno más frecuente fue la proteína de leche de vaca. El manejo temprano está relacionado con buen pronóstico nutricional. Los costos directos se relacionan principalmente con el uso de fórmulas (92 %) y consultas médicas (3,4 %). El 89 % de los padres considera la resolución de la alergia a través del tiempo. Conclusiones: este es el estudio retrospectivo más grande en Colombia, lo que permite conclusiones locales que pueden ser comparadas con otros países.
Subject(s)
Humans , Male , Female , Infant, Newborn , Infant , Child, Preschool , Child , Adolescent , Costs and Cost Analysis , Food Hypersensitivity , Gastrointestinal Diseases , Population , Proctocolitis , Allergens , Medical Records , Surveys and Questionnaires , Retrospective Studies , MilkABSTRACT
A urticária aguda é uma causa frequente de consulta com alergistas, caracterizada por urticas e/ou angioedema. Embora autolimitada e benigna, pode causar desconforto significativo e raramente representar uma doença sistêmica grave ou reação alérgica com risco de vida. Nesta revisão, elaborada pelo Departamento Científico de Urticária da Associação Brasileira de Alergia e Imunologia, foram abordadas as principais questões referentes ao tema para auxiliar o médico especialista e generalista.
Acute urticaria is a frequent cause of consultations with allergists, being characterized by wheals and/or angioedema. Although self-limited and benign, it may cause significant discomfort and uncommonly represent a serious systemic disease or life-threatening allergic reaction. In this review prepared by the Urticaria Scientific Department of the Brazilian Association of Allergy and Immunology, the main questions about this topic are addressed to help specialists and general practitioners.
Subject(s)
Humans , Urticaria , Epinephrine , Milk Hypersensitivity , Egg Hypersensitivity , Drug Hypersensitivity , Shellfish Hypersensitivity , Nut and Peanut Hypersensitivity , Histamine H1 Antagonists , Anaphylaxis , Spider Bites , Physicians , Societies, Medical , Therapeutics , Anti-Inflammatory Agents, Non-Steroidal , Sweet Syndrome , Dermatitis, Allergic Contact , Adrenal Cortex Hormones , Hypereosinophilic Syndrome , Schnitzler Syndrome , Mastocytosis, Cutaneous , Diagnosis , Allergy and Immunology , Erythema , Angioedemas, Hereditary , Food Hypersensitivity , Allergists , Hypersensitivity , AngioedemaABSTRACT
Nas últimas décadas observa-se aumento na prevalência mundial de alergia alimentar, que já acomete aproximadamente 6% das crianças, atribuído à interação entre fatores genéticos, ambientais e alterações na resposta imunológica e pode envolver reações mediadas por IgE, não mediadas e mistas. As formas não IgE mediadas decorrem de reação de hipersensibilidade tardia, mediada por linfócitos T e afetam prioritariamente o trato gastrointestinal, como a Síndrome da enterocolite induzida por proteína alimentar (FPIES), Síndrome da proctocolite alérgica induzida por proteína alimentar (FPIAP), Síndrome da enteropatia induzida por proteína alimentar (FPE) e doença celíaca. As características destas reações podem ser diferenciadas por sua apresentação clínica, gravidade, idade de início e história natural. Entre as reações alérgicas aos alimentos não IgE mediadas, a proctocolite alérgica é a mais frequente. Geralmente ocorre no primeiro ano de vida e apresenta excelente prognóstico. Embora costume ter um curso benigno, traz grande preocupação aos cuidadores por frequentemente cursar com quadro de hematoquezia exigindo diagnóstico diferencial adequado. O conhecimento e manejo da proctocolite alérgica é de suma importância para a prática médica em Alergia e Imunologia. Seu diagnóstico é baseado na história clínica seguindo-se dieta de exclusão, especialmente do leite de vaca, com subsequente provocação oral, que geralmente pode ser realizada no domicílio. O diagnóstico preciso é importante, para se evitar dietas de exclusão desnecessárias. Nesta revisão foram utilizados artigos publicados nos últimos anos, com busca realizada através da base PubMed envolvendo revisões, diagnóstico e tratamento de alergias não IgE mediadas, com foco em proctocolite alérgica.
An increase in the worldwide prevalence of food allergies has been observed in the past decades, currently affecting 6% of children. This increase has been associated with the interaction between genetic, environmental, and immune response factors and can be observed in IgE, non-IgE, and mixed mediated reactions. Non-IgE mediated food allergies result from delayed-type hypersensitivity and mostly affect the gastrointestinal tract, such as food protein-induced enterocolitis syndrome (FPIES), food protein-induced allergic proctocolitis (FPIAP), food protein-induced enteropathy (FPE), and celiac disease. These reactions can be differentiated by their clinical presentation, severity, age at onset, and natural history. Among non-IgE-mediated allergic reactions to food, allergic proctocolitis is the most frequent. It usually develops in the first year of life and has excellent prognosis. Although it has a benign course, allergic proctocolitis is challenging for health care professionals because it often presents with hematochezia, requiring an accurate differential diagnosis. Knowledge and management of allergic proctocolitis is of paramount importance for medical practice in allergy and immunology. Its diagnosis is based on clinical history followed by elimination diet, especially cow's milk, with subsequent oral food challenge, which may usually be performed at home. Accurate diagnosis is important to avoid unnecessary elimination diets. For this review, PubMed database was searched for recently published literature reviews and studies on the diagnosis and treatment of non- IgE mediated allergies, with a focus on allergic proctocolitis.
Subject(s)
Humans , Infant, Newborn , Infant , Child, Preschool , Child , Proctocolitis , Food Hypersensitivity , Therapeutics , Immunoglobulin E , T-Lymphocytes , Celiac Disease , Prevalence , Milk Hypersensitivity , PubMed , Gastrointestinal Tract , Diagnosis, Differential , Allergy and Immunology , Gastrointestinal HemorrhageABSTRACT
INTRODUCCIÓN: La colitis eosinofílica y la colitis de la enfermedad inflamatoria intestinal, son dos entidades que pueden compartir similares características clínicas, endoscópicas y terapéuticas pero diferentes criterios diagnósticos. OBJETIVOS: Describir el caso clínico de un niño preescolar con antecedente de alergia alimentaria, de hospitalizaciones y uso de antibióticos por varias ocasiones, que evoluciona con diarrea crónica intermitente. CASO CLÍNICO: Se trata de un paciente masculino, de 3 años 5 meses, con antecedente de alergia alimentaria con cuadro crónico de dolor abdominal, diarrea y retraso en el crecimiento. Se realiza abordaje de diarrea crónica. RESULTADOS: Con hallazgos clínicos de enfermedad inflamatoria intestinal y descripción histopatológica de colitis eosinofílica, se considera la asociación entre estas dos patologías sin dejar la posibilidad de que esta última se trate de una fase inicial de enfermedad inflamatoria intestinal. CONCLUSIONES: El tratamiento de pacientes con colitis eosinofílica complicada es similar a la enfermedad inflamatoria intestinal, se requiere seguimiento clínico, endoscópico e histopatológico de pacientes con colitis eosinofílica a largo plazo.
INTRODUCTION: Eosinophilic colitis and inflammatory bowel disease colitis are two entities that may share similar clinical, endoscopic and therapeutic features but different diagnostic criteria. OBJECTIVES: To describe the clinical case of a preschool child with a history of food allergy, hospitalizations and use of antibiotics for several occasions, who evolves with chronic intermittent diarrhea. CLINICAL CASE: This is a male patient, 3 years 5 months old, with a history of food allergy with chronic abdominal pain, diarrhea and growth retardation. Chronic diarrhea was approached. RESULTS: With clinical findings of inflammatory bowel disease and histopathological description of eosinophilic colitis, the association between these two pathologies is considered without leaving the possibility that the latter is an initial phase of inflammatory bowel disease. CONCLUSIONS: The treatment of patients with complicated eosinophilic colitis is similar to inflammatory bowel disease, clinical, endoscopic and histopathological follow-up of patients with eosinophilic colitis is required in the long term.
Subject(s)
Humans , Male , Child, Preschool , Inflammatory Bowel Diseases , Colitis , Diarrhea/diagnosis , Enterocolitis , Eosinophils , Food Hypersensitivity , Pediatrics , Colitis, Ulcerative , Abdominal Pain , Colon , Enteric Nervous System , Diarrhea, Infantile , Eosinophilia , Prescription Drug Overuse , Gastrointestinal Diseases , HospitalizationABSTRACT
Objetivo: A incidência das doenças alérgicas cresceu nas últimas décadas. Na tentativa de conter o aumento da alergia alimentar (AA) ao longo dos anos, estratégias de prevenção vêm sendo implementadas. Para promover um melhor entendimento dos dilemas que permeiam a introdução alimentar no primeiro ano de vida, esse artigo trata de uma revisão bibliográfica narrativa sobre a introdução dos alimentos complementares no primeiro ano de vida e possíveis associações com a prevenção primária da alergia alimentar. Fonte dos dados: Publicações relevantes foram pesquisadas nas bases de dados Cochrane Library, MEDLINE, PubMed, Guidelines International Network, National Guidelines Clearinghouse e revisadas recomendações do guia e do consenso nacional de alergia alimentar. Resultados: Estudos observacionais diversos e ensaios clínicos randomizados estão disponíveis, bem como recomendações publicadas por organizações científicas; no entanto, de qualidade variável. Foram consideradas as recomendações de diretrizes de prática clínica classificadas como de alta qualidade e publicações recentes ainda não categorizadas de forma sistemática em sua qualidade, mas internacionalmente reconhecidas como relevantes para a atenção primária. Conclusão: Até o momento, não há evidências consistentes de que a introdução precoce, antes dos 6 meses, dos alimentos alergênicos, contribua para a prevenção de alergia a alimentos na população geral.
Objective: The incidence of allergic diseases has increased in recent decades. In an attempt to contain the increase in food allergy (AA) over the years, prevention strategies have been implemented. To promote a better understanding of the dilemmas that permeate the introduction of food in the first year of life, this article deals with a narrative literature review on the introduction of complementary foods in the first year of life and possible associations with the primary prevention of food allergy. Data source: Relevant publications were searched in the Cochrane Library, MEDLINE, PubMed, Guidelines International Network, National Guidelines Clearinghouse, and revised recommendations from the national food allergy guide and consensus. Results: Several observational studies and randomized controlled trials are available, as well as recommendations. published by scientific organizations; however, of variable quality. Recommendations from clinical practice guidelines classified as high quality and recent publications not yet systematically categorized in their quality, but internationally recognized as relevant to primary care, were considered. Conclusion: To date, there is no consistent evidence that the early introduction, before 6 months, of allergenic foods contributes to the prevention of food allergy in the general population.
Subject(s)
Humans , Infant, Newborn , Infant , Food Hypersensitivity , Infant Food , Primary Health Care , Primary Prevention , Societies, Medical , Randomized Controlled Trials as Topic , Incidence , MEDLINE , Health Strategies , Guidelines as Topic , PubMed , Alkalies , Allergy and Immunology , Food , HypersensitivityABSTRACT
A alergia alimentar caracteriza-se por uma reação adversa a um determinado alimento, envolvendo um mecanismo imunológico. Uma das alergias mais comuns encontradas atualmente é a alergia a frutos do mar, a qual se baseia em uma hipersensibilidade a animais desse grupo. O objetivo desta pesquisa é identificar os desafios expostos na alimentação de alérgicos a frutos do mar e formular soluções para essa população baseadas em alimentos nutricionalmente substitutos. Sendo realizado em três etapas: investigação inicial, construção de conceitos e planejamento de uma ação com orientações nutricionais. De acordo com as dificuldades encontradas na alimentação dessa parcela populacional, realizaram-se diferentes preparações, com nutrientes como ômega-3, proteínas, vitaminas do complexo B, zinco, ferro, potássio, magnésio, iodo e selênio, os quais também são encontrados nos frutos do mar, a fim de evitar possíveis contaminações cruzadas e garantir seu aporte nutricional em alimentos substitutos. Foi possível concluir que os alérgicos aos frutos do mar não apresentam uma interferência significativa em sua qualidade de vida, tendo um impacto nutricional pequeno, visto que por meio da alimentação existem outras fontes, necessitando somente de alguns cuidados no dia a dia em virtude das consequências de uma possível contaminação.
Food allergy is characterized by an adverse reaction to a given food, involving an immunological mechanism. One of the most common allergies currently found is seafood allergy, which is based on hypersensitivity to animals in this group. The objective of this research is to identify the challenges exposed in the feeding of seafood allergies and formulate solutions for this population based on nutritionally substitute foods. Being carried out in 3 stages, initial investigation, construction of concepts and planning of an action with nutritional guidance. According to the difficulties encountered in feeding this portion of the population, different preparations were carried out, with nutrients such as: ômega-3, proteins, B vitamins, zinc, iron, potassium, magnesium, iodine and selenium. Which are also found in seafood. In order to avoid possible cross-contamination and ensure their nutritional intake in substitute foods. It was possible to conclude that seafood allergies do not present a significant interference in their quality of life, having a small nutritional impact, since through food there are other sources, requiring only some care on a daily basis due to the consequences of possible contamination.
Subject(s)
Humans , Shellfish , Food Hypersensitivity , Potassium , Quality of Life , Selenium , Vitamin B Complex , Vitamins , Zinc , Allergens , Nutrients , Diet , Eating , Iodine , Iron , MagnesiumABSTRACT
La alergia alimentaria se ha venido incrementando a nivel mundial, afectando alrededor del 1,5 % a 2,5 % de los adultos y 6 % de los niños, y tiene un gran impacto en la calidad de vida de los pacientes y sus cuidadores, debido a las dietas de restricción. Los alérgenos más prevalentes son la leche, el huevo, el trigo, la soja, los frutos secos, el maní, el pescado y los mariscos. Las leguminosas mejor estudiadas son el maní y la soja; otras leguminosas como las lentejas, garbanzos y arvejas representan la quinta causa de alergia alimentaria en el área mediterránea, en Turquía y en la India, siendo menos prevalentes en otras áreas geográficas. La alergia a las leguminosas es una entidad infrecuente en Colombia, se desconoce la prevalencia en el país. Describimos los primeros dos casos de anafilaxia por lentejas reportados en el país. Ambos pacientes menores de 18 años, con reacciones adversas tras la ingesta de leguminosas, en las cuales se demuestra alergia mediada por IgE a las lentejas y además sensibilización en el primer caso a las arvejas y garbanzos, y en el segundo caso a los frijoles. Diferentes datos sobre la prevalencia se han descrito en varias áreas geográficas, siendo mayor en países con dietas mediterráneas. Las reacciones mediadas por IgE suelen aparecer incluso con el alimento altamente cocido, debido a la termo-estabilidad de las proteínas. La reactividad cruzada más frecuente se relaciona con los garbanzos y las arvejas
Food allergy has been increasing worldwide. Affects around 1.5% to 2.5% of adults and 6% of children, and has a great impact on the quality of life of patients and their caregivers, due to restricted diets. The most prevalent allergens are milk, egg, wheat, soy, tree nuts, peanuts, fish and shellfish. The best studied legumes are peanuts and soybeans; other legumes such as lentils, chickpeas and peas represent the fifth cause of food allergy in the Mediterranean area, Turkey and India, being less prevalent in other geographical areas. Allergy to legumes is not common in Colombia, the prevalence in the country is unknown. We describe the first two cases of legumes anaphylaxis reported in the country. Both patients were under 18 years of age, with adverse reactions after ingesting legumes, in which IgE-mediated allergy was demonstrated; in the first case to lentils, peas and chickpeas, and in the second case, to lentils and beans. Different data on prevalence have been described in various geographical areas, being higher in countries with Mediterranean diets. IgE-mediated reactions usually appear even with highly cooked food, due to the thermo-stability of proteins. The most frequent cross-reactivity is related to chickpeas and peas
Subject(s)
Humans , Male , Female , Child, Preschool , Child , Food Hypersensitivity/etiology , Fabaceae/adverse effects , Urticaria/etiology , Colombia , Peas/adverse effects , Cicer/adverse effects , Lens Plant/adverse effects , Food Hypersensitivity/immunology , Hypersensitivity, Immediate/etiology , Hypersensitivity, Immediate/immunology , Anaphylaxis/etiologyABSTRACT
Primary health care providers are often confronted with patients describing adverse reactions to food. With a multiplex of differential diagnoses, it is essential to have a structured approach to these complaints. Just as allergies can have a negative impact on quality of life, inappropriate food allergy labelling can cause unnecessary distress and hardship for patients. Understanding the diagnostic approaches to adverse food reactions, alongside an appreciation of multidisciplinary collaboration, can assist the clinician in making appropriate decisions in the management of these patients. Keywords: food allergy; food hypersensitivity; food intolerance; allergy-focused history; allergy diagnosis.
Subject(s)
Diagnosis , Food Hypersensitivity , Food Intolerance , Nurse CliniciansABSTRACT
A maioria das respostas alérgicas a alimentos é mediada por IgE, que pode ser detectada para fins de diagnóstico da alergia alimentar. No entanto, para isso é necessário que alérgenos purificados estejam disponíveis para a elaboração dos diferentes formatos de ensaio, inclusive por microarray, que se constitui em uma ferramenta bastante útil para análise simultânea, e também para a identificação de reatividade cruzada. A esse respeito, é imprescindível ampliar a plataforma de alérgenos que possam ser empregados para a confecção de microarrays. Atualmente, alguns alimentos que constituem objeto de interesse na clínica em função do número de casos de alergia, e sobre os quais as informações a respeito dos alérgenos são escassas, são: abacaxi, mamão, mandioca e manga. Assim, o objetivo desse trabalho foi clonar, expressar e purificar proteínas potencialmente alergênicas de alimentos de importância regional. Após confirmadas por ensaios imunológicos, essas proteínas foram utilizadas na construção e validação de um microarray através de ensaios com os soros de pacientes alérgicos aos alimentos selecionados. Para atingir esse objetivo, foram selecionadas proteínas potencialmente alergênicas coincidentes, apontadas tanto pela similaridade com espécies taxonomicamente mais próximas, quanto pela técnica 2D Western Blotting acoplada à espectrometria de massas. Dezenove proteínas, sendo 4 de abacaxi, 5 de mamão, 6 de mandioca e 4 de manga, foram expressas em Pichia pastoris, purificadas e impressas em um microarray. Após incubar essas proteínas com os soros dos pacientes alérgicos aos alimentos estudados, 18 proteínas mostraram-se potencialmente alergênicas. Além disso, foi observada reatividade cruzada entre proteínas dos alimentos estudados e também em relação ao látex e outros frutos
The majority of allergic reactions to foods is IgE-mediated, which can be detected for the diagnosis of food allergy. However, purified allergens are necessary to produce different kinds of allergy tests, including microarray, which is a useful tool for simultaneous analysis, as well as for the identification of cross-reactivity. In this respect, it is essential to expand the platform of allergens to include them on microarrays. Nowadays, some foods that are object of interest in the clinical area in Brazil and it is necessary a further evaluation about their potential allergens, since there is a limited information about them, are: pineapple, papaya, cassava and mango. Therefore, the aim of this study was cloning, expressing and purifying potentially allergenic proteins of important Brazilian foods. After confirmed by immunological tests, these proteins were used in microarray production and validation by assays with sera from allergic patients to the selected foods. Achieving this goal, matching potentially allergenic proteins were selected, which were identified by comparison among taxonomically closer species (in silico) and 2D Western Blotting coupled with Mass Spectrometry. Nineteen proteins: 4 from pineapple, 5 from papaya, 6 from cassava and 4 from mango were expressed in Pichia pastoris, purified and printed on a microarray. After incubating those proteins with sera from allergic patients to the selected foods, 18 proteins were detected as potentially allergenic. In addition, cross-reactivity was observed among the proteins from the studied foods, and also regarding to the latex and other fruits
Subject(s)
Humans , Male , Female , Allergens/analysis , Cloning, Organism/instrumentation , Microarray Analysis/classification , Food , Food Hypersensitivity/diagnosis , Mass Spectrometry/methods , Blotting, Western/methods , Validation Study , Fruit/adverse effects , Hypersensitivity/complicationsABSTRACT
Objective: To translate the food allergy quality of life-parental burden (FAQL-PB) scale into Chinese and test its reliability and validity among the caregivers of children with food allergy. Methods: The caregivers of 222 children with food allergy were enrolled by convenient sampling from October 2020 to October 2021 in the Children's Hospital Affiliated to Chongqing Medical University. The forward-backward translation and cultural adaptation of the original FAQL-PB scale was performed in accordance with Brislin's model. Item analysis was used to select items. The validity of the questionnaire was analyzed with the item-level content validity and the exploratory factors analysis. And the internal consistency coefficient, split-half reliability and test-retest reliability were used to evaluate the reliability of the questionnaire. Results: The Pearson correlation coefficients of the scores between each item and total scale ranged from 0.72 to 0.88 (P<0.01). The item-level content validity index (I-CVI) ranged from 0.83 to 1.00, scale-level content validity index/universal agreement (S-CVI/UA) was 0.94, and scale-level content validity index/average (S-CVI/Ave) was 0.99. Exploratory factor analysis revealed that Chinese version of FAQL-PB scale could be classified into two dimensions: emotional distress and limitations on life, with the accumulative variance contribution rate of 74.08%. The Cronbach's α coefficient, split-half reliability coefficient and test-retest reliability of the Chinese version of FAQL-PB scale were 0.97, 0.98 and 0.71, respectively. Conclusion: The Chinese version of FAQL-PB scale is proved to be reliable and eligible, and can be used as a specific tool to investigate the quality of life in family of children with food hypersensitivity.
Subject(s)
Child , China , Food Hypersensitivity/diagnosis , Humans , Parents/psychology , Quality of Life , Reproducibility of ResultsABSTRACT
O presente relato apresenta um caso de anafilaxia tardia ao carboidrato alfa-gal em um adolescente da cidade de Belém, na Paraíba, Brasil. O paciente desenvolveu reação tardia à ingesta de carne e vísceras de animais. Ele mora em fazenda e tem contato próximo com animais potencialmente contaminados por carrapatos. Essa causa de reação alérgica é nova, e estudos começaram a atribuí-la a casos antes ditos idiopáticos. A anafilaxia é uma reação potencialmente fatal, que deve ser prontamente diagnosticada e tratada. Sendo assim, a descoberta de seu fator desencadeante é um dos principais itens que direcionam o tratamento. No Brasil, nenhum caso de anafilaxia por alfa-gal foi antes descrito na literatura local.
This report presents a case of late anaphylaxis to alpha-gal carbohydrate in a teenager living in the city of Belém, Paraíba, Brazil. The patient developed a late reaction to eating meat and offal of animals; he lives on a farm and has close contact with animals potentially contaminated by ticks. This cause of allergic reaction is new, and studies have started to attribute it to cases previously said to be idiopathic. Anaphylaxis is a potentially fatal reaction that must be promptly diagnosed and treated. Thus, the discovery of its triggering factor is one of the main items that guide treatment. In Brazil, no case of alpha-gal anaphylaxis had been described in the local literature.
Subject(s)
Humans , Male , Adolescent , Ticks , Viscera , Carbohydrates , Food Hypersensitivity , Anaphylaxis , Meat , Therapeutics , Eating , FarmsABSTRACT
Introdução:As alergias alimentares são definidas como uma reação imunológica adversa que se repete mediante a exposição a determinado alimento. Essas reações variam da anafilaxia (mais grave) à manifestações gastrointestinais.Objetivo:avaliar a eficácia da suplementação com probióticos no tratamento de alergias alimentares em crianças, na redução dos sintomas e/ou na aquisição de tolerância, identificando cepa mais eficaz, relação dose-resposta e efeitos adversos de seu uso. Metodologia:Esta é uma revisão integrativa de literatura. Para busca de ensaios clínicos e outras revisões, utilizamos as bases científicas ScienceDirect, SciELO, BVS, LILACS, PubMed e MEDLINE, com as palavras-chave "probiotics", "treatment", "food allergy", "children", e "infant". Após a aplicação dos critérios de exclusão, foram selecionados quatro ensaios clínicos randomizados, cinco revisões e uma metanálise; a amostra de todos os estudos foi de lactentes com alergia à proteína do leite de vaca. Resultados:Os estudos apontaram que o uso de fórmula infantil extensamente hidrolisada com Lactobacillus rhamnosus, em doses de 1x106 a 5x108 cfu/g, é eficaz tanto em acelerar a melhora do eczema atópico, como em induzir tolerância em crianças na faixa de idade de 1 mês a 3 anos que não tenham reações anafiláticas ao leite de vaca. Conclusões:Há evidências escassas de que o uso de fórmula infantil extensamente hidrolisada com Lactobacillus rhamnosus, em doses de 1x10
Introduction:Food allergies are defined as an adverse immunological reaction that is repeated through exposure to a particular food. These reactions range from anaphylaxis (more severe) to gastrointestinal manifestations.Objective:To evaluate the effectiveness of probiotics in the treatment of food allergies in children, relieving symptoms or inducing tolerance, identifying the most effective strain, dosage and adverse effects. Methodology:This is an integrative literature review. We performed a systematic search using the keywords "probiotics", "treatment", "food allergy", "children", and "infant" in the following scientific databases: ScienceDirect, SciELO, BVS, LILACS, PubMed, and MEDLINE. After applying the exclusion criteria, we selected four randomized clinical trials, five reviews and one meta-analysis. In all of them, the children were diagnosed with cow's milk allergy. Results:The studies have indicated that the use of extensively hydrolysed milk formula with the addition of Lactobacillus rhamnosus with dosage ranging from 1x106 to 5x108 cfu/g is effective in inducing tolerance and reducing severity of eczema in infants with no history of anaphylactic symptoms. Conclusions:There is limited evidence that the use of extensively hydrolysed milk formula with the addition of Lactobacillus rhamnosus, at doses of 1x10
Introducción: las alergias alimentarias se definen como una reacción inmunológica adversa que se repite tras la exposición a un alimento concreto. Estas reacciones van desde la anafilaxia (la más grave) hasta las manifestaciones gastrointestinales.Objetivo:Evaluar la eficacia del suplemento con probióticos en el tratamiento de las alergias alimentarias en niños, en la reducción de los síntomas y/o en la adquisición de tolerancia, identificando la cepa más eficaz, la relación dosis-respuesta y los efectos adversos de su uso.Metodología: Se trata de una revisión bibliográfica integradora. Para la búsqueda de ensayos clínicos y otras revisiones se utilizaron las bases de datos científicas ScienceDirect, SciELO, BVS, LILACS, PubMed y MEDLINE, con las palabras clave "probiotics", "treatment", "food allergy", "children" y "infant". Después de aplicar los criterios de exclusión, se seleccionaron cuatro ensayos clínicos aleatorios, cinco revisiones y un metanálisis; la muestra de todos los estudios fue de lactantes con alergia a las proteínas de la leche de vaca. Resultados: Los estudios señalaron que el uso de fórmulas infantiles extensamente hidrolizadas con Lactobacillus rhamnosus, en dosis de 1x106 a 5x108 ufc/g, es eficaz tanto para acelerar la mejora del eczema atópico como para inducir la tolerancia en niños de entre 1 mes y 3 años de edad que no presentan reacciones anafilácticas a la leche de vaca.Conclusiones: existen pruebas limitadas de que el uso de fórmulas infantiles extensamente hidrolizadas con Lactobacillus rhamnosus, en dosis de 1x10
Subject(s)
Milk Hypersensitivity , Probiotics , Food Hypersensitivity , Brazil , EfficacyABSTRACT
A anafilaxia é uma reação alérgica mais grave e potencialmente fatal. Apresenta-se quase sempre com manifestações cutâneas, acompanhadas por acometimento dos sistemas respiratório, gastrointestinal, nervoso e cardiovascular. Indivíduos de todas as faixas etárias podem manifestar anafilaxia, e seu diagnóstico no primeiro ano de vida é difícil por ser o lactente incapaz de expressar de modo claro as sensações vividas durante o episódio agudo. Nessa faixa etária os alimentos são os agentes desencadeantes mais envolvidos, embora medicamentos e veneno de himenópteros também o sejam. Em pacientes submetidos a várias cirurgias e procedimentos médicos a alergia ao látex pode ocorrer. A adrenalina intramuscular é a primeira linha de tratamento da anafilaxia na fase inicial, mas continua sendo subutilizada. Além disso, medidas de suporte, tais como decúbito supino, reposição de fluidos, vias aéreas pérvias e oxigenação, devem ser instituídas. Após a alta, o paciente deve ser encaminhado à avaliação e seguimento por especialista visando à identificação do agente desencadeante, assim como educar responsáveis/cuidadores destes pacientes sobre a prevenção de novos episódios. É importante que esse paciente tenha consigo algum tipo de identificação que o aponte como tendo tido episódio de anafilaxia, sobretudo se tiver sido recorrente. A oferta de um plano escrito de como proceder diante de um novo episódio é fundamental.
Anaphylaxis is a serious and potentially fatal allergic reaction. Most frequently, it features cutaneous manifestations accompanied by involvement of the respiratory, gastrointestinal, nervous, and/or cardiovascular systems. Individuals of all age groups may present with anaphylaxis, and its diagnosis in the first year of life is difficult because the infant is unable to clearly express the sensations experienced during the acute episode. In this age group, foods are the most common triggering agents, together with medications and Hymenoptera venom. In patients undergoing multiple surgeries and medical procedures, latex allergy may occur. Intramuscular epinephrine is the first line of treatment for early anaphylaxis, but it remains underutilized. In addition, supportive measures such as supine decubitus, fluid replacement, patent airways, and oxygenation should be instituted. After discharge, the patient should be referred for evaluation and follow-up by a specialist, with the purpose of identifying the triggering agent as well as educating the caregivers of these patients about the prevention of new episodes. This patient should always carry some type of identification that indicates that he/she has had any episode of anaphylaxis, especially if it has been recurrent. Providing a written plan of how to proceed in the face of a new episode is essential.
Subject(s)
Humans , Infant, Newborn , Infant , Arthropod Venoms , Skin Manifestations , Epinephrine , Latex Hypersensitivity , Food Hypersensitivity , Anaphylaxis , Recurrence , Therapeutics , Pharmaceutical Preparations , PubMed , Diagnosis , Diagnosis, Differential , HypersensitivityABSTRACT
Introduction: Lipid transfer proteins (LTPs) can cause a diversity of food allergy phenotypes, broadly defined as LTP syndrome. Objective: The aims of this study were to characterize the molecular profile of patients with this syndrome and to evaluate any possible association with clinical phenotypes. Methods: Retrospective study of patients followed up from April 2011 to April 2019. Patients with LTP syndrome and sensitization to Pru p 3, diagnosed by ImmunoCAP ISAC® (Phadia, Thermo Fisher Scientific, Sweden), were selected. Statistical analysis was conducted in IBM SPSS® v20. Results: One hundred patients were assessed, 64% of which were females, with a mean age 27.2±11.8 years (15% pediatric). Mean age at first reaction was 19.9±10 years. According to clinical presentation, two groups were created: local reaction (LR) (n=28) and systemic reaction (SR) (n=72). The following parameters were analyzed in association with the SR group: LTP sensitization profile, co-sensitization to profilins or PR-10 proteins, presence of atopy, and gender. In univariate analysis, a positive association was found between the SR group, female sex (odds ratio [OR] 2.8, p=0.02), and presence of Jug r 3 (OR 2.6, p=0.03). There was a negative association between the SR group, the presence of Par j 2 (OR 0.16, p < 0.01), and co-sensitization to profilins (OR 0.11, p < 0.01). In multivariate analysis, only the presence of Par j 2 kept statistical significance (OR 0.023, p < 0.01). Conclusions: Molecular profile characterization may be useful as a predictor of disease expression in an individual, making a relevant contribution to improved follow-up of these patients. Sensitization to Par j 2 seems to provide protection for the occurrence of SR.
Introdução: As proteínas de transferência lipídicas (LTP) são causa de uma variedade de fenótipos de alergia alimentar globalmente definidos como síndrome LTP. Objetivo: O nosso objetivo é caracterizar o perfil molecular destes doentes e avaliar associação com os fenótipos clínicos. Metodologia: Estudo retrospectivo em que foram selecionados doentes com síndrome de LTP e sensibilização ao alergênio molecular pru p 3 em ImmunoCAP ISAC® (Phadia, Thermo Fisher Scientific, Suécia) realizados de abril de 2011 a abril de 2019. A análise estatística foi realizada através do software IBM SPSS® v20. Resultados: Cem doentes, 64% do sexo feminino, com média de idades à data do exame de 27,2±11,8 anos (idade pediátrica - 15%). A média de idades da primeira reação foi de 19,9±10 anos. Foram constituídos dois grupos com base na apresentação clínica à data da realização do exame: local (LR) n = 28; sistêmica (SR) n = 72. Os seguintes parâmetros foram avaliados em relação ao grupo SR: perfil de sensibilização a LTP, co-sensibilização com profilinas ou PR-10, presença de atopia e gênero. Na análise univariada foi encontrada associação positiva com grupo SR para sexo feminino (Odds ratio (OR) 2,8, p = 0,02) e presença de Jug r 3 (OR 2,60, p = 0,03). Associaram-se negativamente à doença sistêmica a presença de Par j 2 (OR 0,16, p < 0,01) e de profilinas (OR 0,11, p < 0,01). Na análise multivariada apenas manteve significado estatístico a presença de par j 2 (OR 0,023, p < 0,01). Conclusões: A caracterização do perfil molecular pode ser útil como preditos da expressão da doença, sendo uma importante ferramenta no seguimento destes doentes. A presença de Par j 2 parece ser fator protetor de reação grave.
Subject(s)
Humans , Proteins , Profilins , Food Hypersensitivity , Lipids , Patients , Phenotype , Syndrome , Allergens , Retrospective StudiesABSTRACT
A síndrome da enteropatia induzida por proteína alimentar, aguda ou crônica, é um tipo de alergia alimentar não mediada por IgE, que surge entre os 5 e 9 meses de idade, e é caracterizada por episódios de vômitos que começam aproximadamente 1 a 4 horas após a ingestão do alérgeno, algumas vezes acompanhados de letargia, palidez cutânea e diarreia com sangue, resultando em instabilidade hemodinâmica e choque em 15% dos casos. Sua epidemiologia em larga escala é desconhecida, assim como o mecanismo imunopatológico, no entanto, sugere-se um papel importante das células T no processo inflamatório. As manifestações e a gravidade dependem da frequência e da dose do alimento desencadeante, bem como do fenótipo e da idade de cada paciente. A suspeita se dá com base principalmente na história clínica e nos sintomas característicos da doença, que tendem a melhorar após a retirada do alimento suspeito. O teste de provocação oral é o padrão ouro para o diagnóstico, mas deve ser reservado para os casos em que a história é confusa e a hipótese incerta. A abordagem de primeira linha no tratamento visa corrigir a desidratação ou estabilizar o choque quando presente, e interromper imediatamente a oferta de alimentos com potencial indutor de reação alérgica. Relatamos o caso de uma lactente de 2 meses de idade com diagnóstico da síndrome, cujo objetivo é atentar o leitor quanto as suas particularidades, auxiliando-o no diagnóstico precoce e adequado a fim de evitar a depleção progressiva e a evolução para sua forma potencialmente grave.
Acute or chronic food protein-induced enteropathy syndrome is a type of non-IgE-mediated food allergy occurring between 5 and 9 months of age. It is characterized by episodes of vomiting that begin approximately 1 to 4 hours after allergen intake, sometimes accompanied by lethargy, skin pallor, and bloody diarrhea, leading to hemodynamic instability and shock in 15% of cases. Its epidemiology is largely unknown, as well as its immunopathological mechanism; however, an important role of T cells in the inflammatory process is observed. Manifestations and severity depend on the frequency and dose of the triggering food, as well as the phenotype and age of each patient. Suspicion is based mainly on clinical history and characteristic symptoms of the disease, which tend to improve after the removal of the suspect food. Oral provocation testing is the gold standard for diagnosis, but it should be reserved for cases whose history is confusing and hypothesis is uncertain. The first-line treatment approach seeks to correct dehydration or to stabilize shock, if present, and to immediately stop the supply of food that potentially induce an allergic reaction. We report the case of a 2-month-old infant diagnosed with the syndrome, with the aim of drawing the readers' attention to its particularities, thus assisting in early and adequate diagnosis in order to avoid progressive depletion and deterioration to its potentially severe form.
Subject(s)
Humans , Female , Infant , Vomiting , Proteins , Diarrhea , Enterocolitis , Food Hypersensitivity , Signs and Symptoms , Therapeutics , Immunoglobulin E , T-Lymphocytes , Diagnosis, Differential , Eating , LethargyABSTRACT
Introducción: la alergia alimentaria (AA) es un trastorno inmunitario desencadenado por la ingestión de un alimento alérgeno cuyos síntomas son específicos y reproducibles. Aunque en países desarrollados la prevalencia de AA se ha documentado en 6-8% de la población infantil, en la mayoría de los países de América Latina se desconocen los datos referentes a las características epidemiológicas. Objetivos: evaluar la prevalencia de AA mediada por inmunoglobulina E (IgE) por reporte parental y alimentos alérgenos más frecuentes en escolares de 5 a 14 años de la ciudad de Santa Fe, Argentina, en 2018. Materiales y métodos: se realizó un estudio cuantitativo, descriptivo, observacional, retrospectivo, de corte transversal. La muestra consistió en 4.059 escolares de nueve escuelas de la ciudad de Santa Fe, de los cuales 1.493 devolvieron el cuestionario (índice de respuesta de 36,78%) y se consideraron como válidos 1.431. Se empleó como instrumento un cuestionario estructurado, validado al español argentino, diseñado para estimar la prevalencia de AA y alimentos alérgenos por reporte parental en escolares. Resultados: la prevalencia de AA mediada por IgE por reporte parental en escolares de 5 a 14 años fue de 5,03%. Los alimentos alérgenos más frecuentemente reportados en esta población fueron el chocolate (23,58%), el ají picante y la leche (ambos 16,04%). Conclusiones: la prevalencia de AA mediada por IgE por reporte parental en escolares de la ciudad de Santa Fe fue de 5,03%. Los alimentos alérgenos más frecuentemente reportados en esta población fueron el chocolate, el ají picante y la leche. Es importante la correcta identificación de las AA para evitar la exclusión innecesaria de alimentos que pueden perjudicar el crecimiento y desarrollo de los niños, especialmente en sus primeros años de vida
Introduction: food allergy (FA) is an immune disorder triggered by the ingestion of an allergen food, whose symptoms are specific and reproducible. Although in developed countries the prevalence of FA has been documented in 6-8% of the child population, data from the most of Latin American countries remain unknown. Objectives: to evaluate the prevalence of FA immunoglobulin E (IgE) mediated by parental report and to determine the most frequent food allergens in schoolchildren from 5 to 14 years of the city of Santa Fe, Argentina, in 2018. Materials and methods: a cross-section quantitative, descriptive, observational, retrospective study was performed collecting data by using a validated survey in Argentine Spanish to determine the most frequent food allergens and FA prevalence among schoolchildren. The sample consisted of 4,059 schoolchildren from nine schools; 1,493 schoolchildren returned the questionnaire (response rate of 36.78%) and 1,431 were considered as valid. Results: the prevalence of FA IgE mediated by parental report in schoolchildren from 5 to 14 years of age was 5.03%. The most frequently reported allergenic foods in this population were chocolate (23.58%), chilli and milk (both 16.04%). Conclusions: the prevalence of FA IgE mediated by parental report in schoolchildren was 5.03%. The most frequently reported allergenic foods in schoolchildren were chocolate, chilli and milk. Correct identification of FAs is important to avoid unnecessary exclusion of foods that can harm the growth and development of children, especially during the first years old
Subject(s)
Humans , Child, Preschool , Food Hypersensitivity , Milk , ChocolateABSTRACT
La queilitis granulomatosa es una entidad granulomatosa no infecciosa, poco frecuente, que se presenta como un aumento de volumen persistente de la región orofacial. El estudio histológico, junto con la exclusión de otras patologías granulomatosas son necesarios para su diagnóstico, especialmente cuando no se presenta con la triada clásica del Síndrome de Merkelsson Rosenthal. Presentamos dos casos de queilitis granulomatosa y una revisión de la literatura disponible.
Granulomatous cheilitis is a rare, non-infectious, granulomatous entity that presents as a persistent swelling of the orofacial region. Histological study together with the exclusion of other granulomatous diseases are necessary for the diagnosis, especially when the presentation is not the classic triad of Merkelsson Rosenthal Syndrome. We present two cases of granulomatous cheilitis and a review of the available literature.
Subject(s)
Humans , Male , Female , Middle Aged , Aged , Granulomatosis, Orofacial , Melkersson-Rosenthal Syndrome/diagnosis , Diagnosis, Differential , Food Hypersensitivity/etiology , Angioedema/complications , Melkersson-Rosenthal Syndrome/therapyABSTRACT
BACKGROUND@#Food allergy (FA) is a common disease in children, and its prevalence has increased in developed countries. The impact of overweight on children health also becomes an important social problem. However, the relationship between overweight and FA is still unclear. We examined the association between overweight and the prevalence of FA among Japanese children.@*METHODS@#We analyzed data obtained using a self-administered questionnaire from 1772 Japanese children. Weight groups according to body mass index cutoff points proposed by the International Obesity Task Force were used to create two groups: overweight and non-overweight. Children were separated into four age groups (3-6 years, 6-9 years, 9-12 years, and 12-15 years) to examine age differences. We performed univariate and multivariate logistic models to examine the association between overweight and FA.@*RESULTS@#The prevalence of FA was significantly higher in boys (10.6%, p = 0.014) than girls (4.5%) and girls (7.9%, p = 0.012) than boys (2.5%) for 6-9 and 12-15 age groups, respectively. While the prevalence of FA was significantly higher in overweight than non-overweight girls (26.1%, p = 0.005) in the 12-15 age group, no significant difference was found in boys. In girls, overweight was significantly associated with FA after adjustment for age and asthma (odds ratio 1.99, 95% confidence interval 1.01-3.89, p = 0.046).@*CONCLUSIONS@#Our results showed that being overweight was significantly associated with a higher prevalence of FA in girls, but not in boys. Further prospective studies are necessary to find the causal relationship between overweight and FA.