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Brief Explanation of Food Allergy

Monday, 29 November 2010 by

From a medical perspective food allergy is an immunoglobulin (Ig)E- or non-IgE-mediated immune response to food protein. This small review will look at the IgE mediated food represented by immediate hypersensitivity (Gell-Coombs Type I), which can include anaphylaxis and can be life-threatening.

Food or environmental exposures that result in non-IgE-mediated reactions are thought to be cell mediated (allergic eosinophilic esophagitis/gastroenteritis, food protein-induced proctocolitis, food protein-induced enterocolitis syndrome, food protein-induced enteropathy; including coeliac disease).

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A new study indicates there may be yet another reason to reduce childhood obesity — it may help prevent allergies. The study published in the May issue of the Journal of Allergy and Clinical Immunology showed that obese children and adolescents are at increased risk of having some kind of allergy, especially to a food. The study was funded by the National Institute of Environmental Health Sciences (NIEHS) and the National Institute of Allergy and Infectious Diseases (NIAID), both parts of the National Institutes of Health.

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