Journal
HUMAN MOLECULAR GENETICS
Volume 17, Issue 5, Pages 724-734Publisher
OXFORD UNIV PRESS
DOI: 10.1093/hmg/ddm344
Keywords
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Funding
- NEI NIH HHS [EY012562] Funding Source: Medline
- NIAAA NIH HHS [AA015336] Funding Source: Medline
- NICHD NIH HHS [HD010333, HD031921, R01 HD060726] Funding Source: Medline
- NIDA NIH HHS [DA012845, R01 DA012845, DA03194, DA13956, DA011015, P60 DA011015, DA015522] Funding Source: Medline
- NIMH NIH HHS [MH15442, T32 MH015442] Funding Source: Medline
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Neuronal nicotinic acetylcholine receptors have been implicated in various measures of nicotine dependence. In this paper, we present findings from an exploratory study of single nucleotide polymorphisms (SNPs) in the CHRNB3 and CHRNA6 genes with tobacco and alcohol phenotypes, including frequency of use and three subjective response factors occurring shortly after initiation of use. Subjects were 1056 ethnically diverse adolescents ascertained from clinical and community settings. The most significant associations were found between two CHRNB3 SNPs (rs4950 and rs13280604) and the three subjective response factors to initial tobacco use. These findings were replicated in a separate community sample of 1524 families participating in the National Longitudinal Study of Adolescent Health. Both CHRNB3 SNPs were found to be associated with similar measures of subjective response to tobacco. These results indicate that early subjective response to nicotine may be a valuable endophenotype for genetic studies aimed at uncovering genes contributing to nicotine use and addiction.
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