Relatively few studies have investigated the role of the 5HTT gene in intermediate phenotypes such as alcohol consumption in non-alcohol dependent populations. A recent study reported an association with alcohol consumption in a student population. We attempted to replicate these findings and extend on this work in a representative, ethnically homogenous, non-alcohol dependent sample of social drinkers in the United Kingdom. The short allele of the 5HTT gene was significantly associated with increased alcohol consumption (P = 0.03). There was suggestive evidence of a genotype-sex interaction (P = 0.04). Post-hoc tests indicated higher alcohol consumption in men with one or more copies of the short allele, while in women consumption was highest among heterozygotes compared to both homozygote groups. Age at time of data collection and cigarette consumption were entered as covariates. These results replicate recent previous findings and suggest a possibility that this association may differ in men and women.
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http://dx.doi.org/10.1002/ajmg.b.30162 | DOI Listing |
J Public Health (Oxf)
January 2025
Lifespan and Population Health, School of Medicine, University of Nottingham, Nottingham NG5 1PB, UK.
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Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, People's Republic of China.
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View Article and Find Full Text PDFFree Radic Biol Med
January 2025
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Addict Behav
December 2024
Department of Psychiatry, University of Missouri, USA.
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