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Sequence variants at CHRNB3-CHRNA6 and CYP2A6 affect smoking behavior.
Nat. Genet. 42, 448-453 (2010)
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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Anmerkungen
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
Genome-wide association; Nicotinic acetylcholine-receptors; Lung-cancer; Susceptibility locus; Molecular-genetics; Heavy smoking; Adult twins; Depenence; Genes; SNPS
Sprache
englisch
Veröffentlichungsjahr
2010
HGF-Berichtsjahr
2010
ISSN (print) / ISBN
1061-4036
e-ISSN
1546-1718
Zeitschrift
Nature Genetics
Quellenangaben
Band: 42,
Heft: 5,
Seiten: 448-453
Verlag
Nature Publishing Group
Verlagsort
New York, NY
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Epidemiology (EPI)
POF Topic(s)
30503 - Chronic Diseases of the Lung and Allergies
Forschungsfeld(er)
Genetics and Epidemiology
PSP-Element(e)
G-503900-001
DOI
10.1038/ng.573
Scopus ID
77951748276
PubMed ID
20418888
Erfassungsdatum
2010-07-27