Bread eating induced oral angioedema due to alpha-amylase allergy.

Abstract Text

Inhalation of dust from different enzymes can be the cause of occupational asthma in exposed workers. Enzymes from different sources are being increasingly used in food. Few cases of food allergy to alpha-amylase induced by eating bread have been reported. Those cases were reported in bakery-related patients and in a pharmaceutical-industry worker. A 25-year-old farmer suffered sneezing, rhinorrhea, oropharyngeal itching, hoarseness, cough, and non-wheezy dyspnea after eating white bread. Skin prick tests (SPT) with common aeroallergens and food allergens revealed only sensitization to Olea europaea pollen. SPT response was positive to Aspergillus oryzae alpha-amylase. Specific IgE against alpha-amylase was positive. A double-blind placebo-controlled challenge with 5 mg of uncooked -amylase induced sneezing, cough, oral angioedema within 10 minutes. The provocation test with 50 g of white bread gave similar findings. This case indicates that alpha-amylase contained in bread may provoke IgE-mediated food allergy. It is worth noting that in this case, the only source of alpha-amylases sensitization was bread.

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2016-09-03 21:01:18

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Citation:- Moreno-Ancillo A, Domínguez-Noche A, Gil-Adrados A, Cosmes A, .Bread eating induced oral angioedema due to alpha-amylase allergy. Journal of investigational allergology & clinical immunology 2004-;14()346-7 DOI:



Details of Journal

Journal Title - Journal of investigational allergology & clinical immunology

ISSN - 1018-9068

Volume - 14

Issue - 4

Publish date - 2004-

Language - eng

Country - Spain


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