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Depression: 21st Century Solutions + The Dark Side of Wheat

Abstract Title:

Assessment of allergenicity of diploid and hexaploid wheat genotypes: identification of allergens in the albumin/globulin fraction.

Abstract Source:

J Proteomics. 2011 Aug 12 ;74(8):1279-89. Epub 2011 Apr 5. PMID: 21473946

Abstract Author(s):

C Larré, R Lupi, G Gombaud, C Brossard, G Branlard, D A Moneret-Vautrin, H Rogniaux, S Denery-Papini

Article Affiliation:

UR1268 BIA, INRA, Rue de la Géraudière, BP 71627, 44316 Nantes, France. larre@nantes.inra.fr

Abstract:

Wheat is an important part of the daily diet of millions of people. However, this staple food is also responsible for food allergies. Ancient cultivars of wheat are gaining interest today but nothing is known about their allergenicity. Many wheat proteins have been reported as causative food allergens, including some prolamin-type gluten proteins, and salt soluble proteins of the albumin/globulin (A/G) type. The objective of this work is to obtain information about the allergenicity of the salt soluble A/G fraction of an ancient diploid cultivar compared with a standard hexaploid bread wheat cultivar using 20 sera from patients with wheat allergy. Differences in the IgE reactivity of sera towards the two genotypes were quantified by ELISA. Qualitative differences in IgE-binding proteins were searched after 1D or 2D electrophoresis. For most of the sera, the concentration in A/G specific IgE was higher for the hexaploid T. aestivum (cv Récital) than for the diploid T. monococcum (cv Engrain). The analysis of 2D spots revealed by immunoblotting leads to the identification by mass spectrometry of 39 IgE-binding proteins, some of them unknown until now as wheat allergens. Numerous allergens were identified, differences observed between Engrain and Récital will be discussed.

Study Type : Human In Vitro

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Sayer Ji
Founder of GreenMedInfo.com

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Depression: 21st Century Solutions + The Dark Side of Wheat

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