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The Capital Region of Denmark - a part of Copenhagen University Hospital
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Skin prick test reactivity to aeroallergens by filaggrin mutation status

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Background  Studies have shown that filaggrin gene (FLG) mutations are positively associated with sensitization to aero allergens. We hypothesized that FLG mutations would also have an effect on the mean size of positive skin prick test (SPT) reactions as well as the number of positive reactions. Objective  To investigate the effect of FLG mutations on the mean size and the number of positive SPT reactions, as well as the association with positive specific IgE. Methods  A random sample of 3335 adults from the general population in Denmark was genotyped for the R501X and 2282del4 mutations in the FLG. SPT and specific IgE measurements to common aeroallergens were also performed. Results  FLG mutations did not influence the mean size and number of positive SPT reactions. Also, no association was found between FLG mutations and specific IgE measurements. Conclusion  Our findings suggest that FLG mutations alone are insufficient to cause secondary sensitization to allergens. The positive association seen in patients must be explained by a combination of further barrier abnormality caused by dermatitis as well as increased allergen exposure.
Original languageEnglish
JournalEuropean Academy of Dermatology and Venereology. Journal
Volume28
Issue number14
Pages (from-to)238–241
ISSN0926-9959
DOIs
Publication statusPublished - 2014

ID: 36406735