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Thorgeirsson, T.E.* ; Gudbjartsson, D.F.* ; Surakka, I.* ; Vink, J.M.* ; Amin, N.* ; Geller, F.* ; Sulem, P.* ; Rafnar, T.* ; Esko, T.* ; Walter, S.* ; Gieger, C. ; Rawal, R. ; Mangino, M.* ; Prokopenko, I.* ; Mägi, R.* ; Keskitalo, K.* ; Gudjonsdottir, I.H.* ; Gretarsdottir, S.* ; Stefansson, H.* ; Thompson, J.R.* ; Aulchenko, Y.S.* ; Nelis, M.* ; Aben, K.K.* ; den Heijer, M.* ; Dirksen, A.* ; Ashraf, H.* ; Soranzo, N.* ; Valdes, A.M.* ; Steves, C.* ; Uitterlinden, A.G.* ; Hofman, A.* ; Tönjes, A.* ; Kovacs, P.* ; Hottenga, J.J.* ; Willemsen, G.* ; Vogelzangs, N.* ; Döring, A. ; Dahmen, N.* ; Nitz, B. ; Pergadia, M.L.* ; Saez, B.* ; de Diego, V.* ; Lezcano, V.* ; Garcia-Prats, M.D.* ; Ripatti, S.* ; Perola, M.* ; Kettunen, J.* ; Hartikainen, A.L.* ; Pouta, A.* ; Laitinen, J.* ; Isohanni, M.* ; Huei-Yi, S.* ; Allen, M.* ; Krestyaninova, M.* ; Hall, A.S.* ; Jones, G.T.* ; van Rij, A.M.* ; Mueller, T.* ; Dieplinger, B.* ; Haltmayer, M.* ; Jonsson, S.* ; Matthiasson, S.E.* ; Oskarsson, H.* ; Tyrfingsson, T.* ; Kiemeney, L.A.* ; Mayordomo, J.I.* ; Lindholt, J.S.* ; Pedersen, J.H.* ; Franklin, W.A.* ; Wolf, H.* ; Montgomery, G.W.* ; Heath, A.C.* ; Martin, N.G.* ; Madden, P.A.F.* ; Giegling, I.* ; Rujescu, D.* ; Jarvelin, M.R.* ; Salomaa, V.* ; Stumvoll, M.* ; Spector, T.D.* ; Wichmann, H.-E. ; Metspalu, A.* ; Samani, N.J.* ; Penninx, B.W.* ; Oostra, B.A.* ; Boomsma, D.I.* ; Tiemeier, H.* ; van Duijn, C.M.* ; Kaprio, J.* ; Gulcher, J.R.* ; ENGAGE Consortium ; McCarthy, M.I.* ; Peltonen, L.* ; Thorsteinsdottir, U.* ; Stefansson, K.*

Sequence variants at CHRNB3-CHRNA6 and CYP2A6 affect smoking behavior.

Nat. Genet. 42, 448-453 (2010)
DOI PMC
Open Access Green as soon as Postprint is submitted to ZB.
Smoking is a common risk factor for many diseases. We conducted genome-wide association meta-analyses for the number of cigarettes smoked per day (CPD) in smokers (n = 31,266) and smoking initiation (n = 46,481) using samples from the ENGAGE Consortium. In a second stage, we tested selected SNPs with in silico replication in the Tobacco and Genetics (TAG) and Glaxo Smith Kline (Ox-GSK) consortia cohorts (n = 45,691 smokers) and assessed some of those in a third sample of European ancestry (n = 9,040). Variants in three genomic regions associated with CPD (P < 5 x 10(-8)), including previously identified SNPs at 15q25 represented by rs1051730[A] (effect size = 0.80 CPD, P = 2.4 x 10(-69)), and SNPs at 19q13 and 8p11, represented by rs4105144[C] (effect size = 0.39 CPD, P = 2.2 x 10(-12)) and rs6474412-T (effect size = 0.29 CPD, P = 1.4 x 10(-8)), respectively. Among the genes at the two newly associated loci are genes encoding nicotine-metabolizing enzymes (CYP2A6 and CYP2B6) and nicotinic acetylcholine receptor subunits (CHRNB3 and CHRNA6), all of which have been highlighted in previous studies of smoking and nicotine dependence. Nominal associations with lung cancer were observed at both 8p11 (rs6474412[T], odds ratio (OR) = 1.09, P = 0.04) and 19q13 (rs4105144[C], OR = 1.12, P = 0.0006).
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Publication type Article: Journal article
Document type Scientific Article
Keywords Genome-wide association; Nicotinic acetylcholine-receptors; Lung-cancer; Susceptibility locus; Molecular-genetics; Heavy smoking; Adult twins; Depenence; Genes; SNPS
Reviewing status