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Hüls, A.* ; Klümper, C.* ; MacIntyre, E.A.* ; Brauer, M.* ; Melén, E.* ; Bauer, M.* ; Berdel, D.* ; Bergström, A.* ; Brunekreef, B.* ; Chan-Yeung, M.* ; Fuertes, E.* ; Gehring, U.* ; Gref, A.* ; Heinrich, J. ; Standl, M. ; Lehmann, I.* ; Kerkhof, M.* ; Koppelman, G.H.* ; Kozyrskyj, A.L.* ; Pershagen, G.* ; Carlsten, C.* ; Krämer, U.* ; Schikowski, T.*

Atopic dermatitis: Interaction between genetic variants of GSTP1, TNF, TLR2, and TLR4 and air pollution in early life.

Pediatr. Allergy Immunol. 29, 596-605 (2018)
Verlagsversion Postprint DOI
Open Access Green
BackgroundAssociations between traffic-related air pollution (TRAP) and childhood atopic dermatitis (AD) remain inconsistent, possibly due to unexplored gene-environment interactions. The aim of this study was to examine whether a potential effect of TRAP on AD prevalence in children is modified by selected single nucleotide polymorphisms (SNPs) related to oxidative stress and inflammation.MethodsDoctor-diagnosed AD up to age 2years and at 7-8years, as well as AD symptoms up to age 2years, was assessed using parental-reported questionnaires in six birth cohorts (N=5685). Associations of nitrogen dioxide (NO2) estimated at the home address of each child at birth and nine SNPs within the GSTP1, TNF, TLR2, or TLR4 genes with AD were examined. Weighted genetic risk scores (GRS) were calculated from the above SNPs and used to estimate combined marginal genetic effects of oxidative stress and inflammation on AD and its interaction with TRAP.ResultsGRS was associated with childhood AD and modified the association between NO2 and doctor-diagnosed AD up to the age of 2years (P(interaction)=.029). This interaction was mainly driven by a higher susceptibility to air pollution in TNF rs1800629 minor allele (A) carriers. TRAP was not associated with the prevalence of AD in the general population.ConclusionsThe marginal genetic association of a weighted GRS from GSTP1, TNF, TLR2, and TLR4SNPs and its interaction with air pollution supports the role of oxidative stress and inflammation in AD.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Atopic Eczema ; Gene-environment Interaction ; Weighted Genetic Risk Scores; Childhood Asthma; Birth Cohort; Exposure; Health; Eczema; Susceptibility; Sensitization; Association; Population; Children
ISSN (print) / ISBN 0905-6157
e-ISSN 1399-3038
Quellenangaben Band: 29, Heft: 6, Seiten: 596-605 Artikelnummer: , Supplement: ,
Verlag Wiley
Verlagsort 111 River St, Hoboken 07030-5774, Nj Usa
Begutachtungsstatus Peer reviewed