Title
Hazelnut allergy : a multi-faced condition with demographic and geographic characteristics
Author
Faculty/Department
Faculty of Medicine and Health Sciences
Publication type
article
Publication
Leuven ,
Subject
Human medicine
Source (journal)
Acta clinica Belgica. - Leuven, 1946 - 1997
Volume/pages
(2012) , 5 p.
ISSN
0001-5512
ISI
000208851700003
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Hazelnut (Corylus avellana) allergy varies from rather mild oral allergy symptoms to potentially life-threatening anaphylaxis and exhibits geographic and age-related variations. Severity of symptoms depends on the sensitisation profile of the patient and can partially be predicted using component-resolved diagnosis. In our region (young) children predominantly exhibit sensitisation to hazelnut storage proteins Cor a 9 and Cor a 11 that is unrelated to birch pollen allergy and is generally associated with a more severe clinical outcome on consumptionon raw and processed hazelnut. In contrast, adults predominantly present with an oral allergy syndrome due to an extensive cross-reactivity between the labile Cor a 1.04 and Bet v 1, the major allergen from birch (Betula verrucosa) pollen. In the absence of a cure, avoidance remains the key measure of effective management, particularly in those patients presenting with a severe form.
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