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Σάββατο 2 Δεκεμβρίου 2017

Food Allergy: A review and update on epidemiology, pathogenesis, diagnosis, prevention and management

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Publication date: Available online 21 November 2017
Source:Journal of Allergy and Clinical Immunology
Author(s): Scott H. Sicherer, Hugh A. Sampson
This review provides general information to serve as a primer for those embarking on understanding food allergy and also details advances and updates in epidemiology, pathogenesis, diagnosis and treatment that have occurred over the four years since our last comprehensive review. Although firm prevalence data are lacking, there is a strong impression that food allergy has increased, and rates as high as ∼10% have been documented. Genetic, epigenetic and environmental risk factors are being increasingly elucidated, opening the potential for improved prevention and treatment strategies targeted to those at risk. Insights on pathophysiology are revealing a complex interplay of epithelial barrier, mucosal and systemic immune response, route of exposure and microbiome among other influences resulting in allergy or tolerance. The diagnosis of food allergy is largely reliant on the medical history, tests for sensitization, and oral food challenges, but emerging use of component resolved diagnostics are improving diagnostic accuracy. Additional novel diagnostics such as basophil activation tests, determination of epitope binding, DNA methylation signatures and bioinformatics approaches will further change the landscape. A number of prevention strategies are under investigation, but early introduction of peanut has been advised as a public health measure based on existing data. Management remains largely based on allergen avoidance, but a panoply of promising treatment strategies are in phase 2 and 3 studies, giving immense hope that better treatment will be imminently and widely available, while numerous additional promising treatments are in the preclinical and clinical pipeline.



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