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Genome-wide association and genetic functional studies identify autism susceptibility candidate 2 gene (AUTS2) in the regulation of alcohol consumption
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2011 (English)In: Proceedings of the National Academy of Sciences of the United States of America, ISSN 0027-8424, E-ISSN 1091-6490, Vol. 108, no 17, 7119-7124 p.Article in journal (Refereed) Published
Abstract [en]

Alcohol consumption is a moderately heritable trait, but the genetic basis in humans is largely unknown, despite its clinical and societal importance. We report a genome-wide association study meta-analysis of similar to 2.5 million directly genotyped or imputed SNPs with alcohol consumption (gram per day per kilogram body weight) among 12 population-based samples of European ancestry, comprising 26,316 individuals, with replication genotyping in an additional 21,185 individuals. SNP rs6943555 in autism susceptibility candidate 2 gene (AUTS2) was associated with alcohol consumption at genome-wide significance (P = 4 x 10(-8) to P = 4 x 10(-9)). We found a genotype-specific expression of AUTS2 in 96 human prefrontal cortex samples (P = 0.026) and significant (P < 0.017) differences in expression of AUTS2 in whole-brain extracts of mice selected for differences in voluntary alcohol consumption. Downregulation of an AUTS2 homolog caused reduced alcohol sensitivity in Drosophila (P < 0.001). Our finding of a regulator of alcohol consumption adds knowledge to our understanding of genetic mechanisms influencing alcohol drinking behavior.

Place, publisher, year, edition, pages
2011. Vol. 108, no 17, 7119-7124 p.
Keyword [en]
genome-wide analysis, epidemiologic, transcriptional expression analysis
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:uu:diva-153554DOI: 10.1073/pnas.1017288108ISI: 000289888500082PubMedID: 21471458OAI: oai:DiVA.org:uu-153554DiVA: diva2:417241
Available from: 2011-05-16 Created: 2011-05-16 Last updated: 2017-12-11Bibliographically approved

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Bakalkin, Georgy

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