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Association of Clinical Reactivity with Sensitization to Allergen Components in Multifood-Allergic Children
Stanford Univ, Dept Med, Div Pulm & Crit Care Med, Stanford, CA 94305 USA.;Stanford Univ, Sean N Parker Ctr Allergy & Asthma Res, Stanford, CA 94305 USA..
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Women's and Children's Health. Thermo Fisher Sci, Immunodiagnost, Uppsala, Sweden..
Stanford Univ, Dept Med, Div Pulm & Crit Care Med, Stanford, CA 94305 USA.;Stanford Univ, Sean N Parker Ctr Allergy & Asthma Res, Stanford, CA 94305 USA..
Stanford Univ, Dept Med, Div Pulm & Crit Care Med, Stanford, CA 94305 USA.;Stanford Univ, Sean N Parker Ctr Allergy & Asthma Res, Stanford, CA 94305 USA..
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2017 (English)In: Journal of Allergy and Clinical Immunology: In Practice, ISSN 2213-2198, E-ISSN 2213-2201, Vol. 5, no 5, p. 1325-1334.e4Article in journal (Refereed) Published
Abstract [en]

BACKGROUND: Thirty percent of children with food allergies have multiple simultaneous allergies; however, the features of these multiple allergies are not well characterized serologically or clinically. OBJECTIVE: We comprehensively evaluated 60 multifood-allergic patients by measuring serum IgE to key allergen components, evaluating clinical histories and medication use, performing skin tests, and conducting double-blind, placebo-controlled food challenges (DBPCFCs). METHODS: Sixty participants with multiple food allergies were characterized by clinical history, DBPCFCs, total IgE, specific IgE, and component-resolved diagnostics (IgE and IgG4) data. The food allergens tested were almond, egg, milk, sesame, peanut, pecan, walnut, hazelnut, cashew, pistachio, soy, and wheat. RESULTS: Our data demonstrate that of the reactions observed during a graded DBPCFC, gastrointestinal reactions occurred more often in boys than in girls, as well as in individuals with high levels of IgE to 2S albumins from cashew, walnut, and hazelnut. Certain food allergies often occurred concomitantly in individuals (ie, cashew/pistachio and walnut/pecan/hazelnut). IgE testing to components further corroborated serological relationships between and among these clustered food allergies. CONCLUSIONS: Associations of certain food allergies were shown by DBPCFC outcomes as well as by correlations in IgE reactivity to structurally related food allergen components. Each of these criteria independently demonstrated a significant association between allergies to cashew and pistachio, as well as among allergies to walnut, pecan, and hazelnut. (C) 2017 American Academy of Allergy, Asthma & Immunology

Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 5, no 5, p. 1325-1334.e4
Keywords [en]
Multifood allergy, Component-resolved testing, IgE, Double-blind, placebo-controlled food challenge
National Category
Respiratory Medicine and Allergy
Identifiers
URN: urn:nbn:se:uu:diva-335646DOI: 10.1016/j.jaip.2017.01.016ISI: 000409364200022PubMedID: 28351786OAI: oai:DiVA.org:uu-335646DiVA, id: diva2:1163642
Available from: 2017-12-07 Created: 2017-12-07 Last updated: 2017-12-07Bibliographically approved

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Borres, Magnus P.

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