Atopic sensitization in the first year of life

Depner, Martin and Ege, Markus J. and Genuneit, Jon and Pekkanen, Juha and Roponen, Marjut and Hirvonen, Maija-Riitta and Dalphin, Jean-Charles and Kaulek, Vincent and Krauss-Etschmann, Susanne and Riedler, Josef and Braun-Fahrländer, Charlotte and Roduit, Caroline and Lauener, Roger and Pfefferle, Petra I. and Weber, Juliane and von Mutius, Erika and Pasture Study Group, . (2013) Atopic sensitization in the first year of life. Journal of allergy and clinical immunology, 131 (3). pp. 781-788.

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Official URL: http://edoc.unibas.ch/dok/A6124539

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There is conflicting evidence on whether allergen-specific memory is primed prenatally, whether this priming affects persistent immunologic effects, and whether it is modulated by the first environmental exposures in infancy.; We sought to explore the course of atopic sensitization between birth and 12 months of age.; Specific IgE levels for 6 food and 13 common inhalant allergens were assessed in cord blood and 1-year blood samples in the Protection against Allergy-Study in Rural Environments (PASTURE) birth cohort including 793 children from rural regions of 5 European countries. Detailed information on children's health, nutrition, and farm-related exposures was gathered by using a pregnancy questionnaire, 2 questionnaires at 2 and 12 months of age, and a diary covering the time in between.; Sensitization was more common at 12 months of age than at birth for almost all specificities. On an individual level, persistent sensitization to the same allergens was rare (1%), whereas transient (only at birth, 11%) and incident (only at 12 months, 34%) sensitization was seen in substantial proportions of children. Associations of transient sensitization with maternal sensitization differed with the allergen specificities, with the strongest associations for food allergens (odds ratio [OR], 10.6; 95% CI, 6.0-18.6) and the weakest associations for seasonal allergens (OR, 1.64; 95% CI, 0.94-2.86). Associations of maternal sensitization with incident sensitization were also seen. Incident sensitization was related to distinct prenatal and postnatal environmental exposures of mother and child, such as consumption of cereals for incident sensitization to seasonal allergens (OR, 0.66; 95% CI, 0.50-0.88).; IgE sensitization patterns change between birth and 12 months and are related to maternal and environmental influences.
Faculties and Departments:09 Associated Institutions > Swiss Tropical and Public Health Institute (Swiss TPH) > Former Units within Swiss TPH > Microbial Exposure & Childhood Allergies (Braun-Fahrländer)
UniBasel Contributors:Braun-Fahrländer, Charlotte
Item Type:Article, refereed
Article Subtype:Research Article
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:06 Sep 2018 15:03
Deposited On:16 Aug 2013 07:30

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