IgE testing can predict food allergy status in patients with moderate to severe atopic dermatitis
| Autor: | Rekha D. Jhamnani, Erica Brittain, Pamela A. Frischmeyer-Guerrerio, Magnus P. Borres, Kelly D. Stone, Samara Levin, Anthony L. Guerrerio, Marjohn Rasooly, Wenjuan Gu, Joshua D. Milner, Joseph E. Jones |
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| Rok vydání: | 2018 |
| Předmět: |
Pulmonary and Respiratory Medicine
Adult Male Allergy Adolescent Arachis Eggs Immunology Peanut allergy Immunoglobulin E Severity of Illness Index Article Dermatitis Atopic 03 medical and health sciences Young Adult 0302 clinical medicine Food allergy Severity of illness medicine Immunology and Allergy Animals Humans 030212 general & internal medicine Child Sensitization biology business.industry food and beverages Atopic dermatitis medicine.disease medicine.anatomical_structure Milk 030228 respiratory system Child Preschool biology.protein Female Antibody business Food Hypersensitivity |
| Zdroj: | Annals of allergy, asthmaimmunology : official publication of the American College of Allergy, Asthma,Immunology. 122(4) |
| ISSN: | 1534-4436 |
| Popis: | Background Diagnosing food allergy in patients with atopic dermatitis (AD) is complicated by their high rate of asymptomatic sensitization to foods, which can lead to misdiagnosis and unnecessary food avoidance. Objective We sought to determine whether food-specific (sIgE) or component immunoglobulin (Ig) E levels could predict allergic status in patients with moderate to severe AD and elevated total IgE. Methods Seventy-eight children (median age, 10.7 years) with moderate to severe AD were assessed for a history of clinical reactivity to milk, egg, peanut, wheat, and soy. The IgE levels for each food and its components were determined by ImmunoCAP. The level and pattern of IgE reactivity to each food and its components, and their ratio to total IgE, were compared between subjects who were allergic and tolerant to each food. Results Ninety-one percent of subjects were sensitized, and 51% reported allergic reactivity to at least 1 of the 5 most common food allergens. Allergy to milk, egg, and peanut were most common, and IgE levels to each of these foods were significantly higher in the allergic group. Component IgEs most associated with milk, egg, and peanut allergy were Bos d8, Gal d1, and Ara h2, respectively. The ratio of sIgE to total IgE offered no advantage to sIgE alone in predicting allergy. Conclusion Specific IgE levels and the pattern of IgE reactivity to food components can distinguish AD subjects allergic vs tolerant to the major food allergens and may therefore be helpful in guiding the clinical management of these patients. |
| Databáze: | OpenAIRE |
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