Role of dopamine transporter gene (DAT1) polymorphisms in personality traits variation

Role of dopamine transporter gene (DAT1) polymorphisms in personality traits variation According to psychobiological model of personality proposed by Cloninger, personality traits characterizing enhanced tendency to novel stimuli, impulsivity and sociability are influenced by dopaminergic system functioning. The present study considered both the main effect of two polymorphic loci (VNTR and 2319G>A) in dopamine transporter gene (DAT1) and the role of distinct DAT1 gene haplotypes in personality traits variation in 592 healthy individuals belonging to different ethnicities (men and women). The results of the study revealed the involvement of VNTR and 2319G>A polymorphisms in Novelty Seeking variation and the main effect of 2319G>A polymorphism on Reward Dependence (TCI) observed in Russian females. Moreover, DAT1 gene haplotype effect on Novelty Seeking in Russian females and on Persistence (TCI) in Tatar females was demonstrated. Reported in the current study results pointed to the involvement of dopaminergic system (DAT1 gene in particular) in variation of personality traits characterizing the tendency to novel stimuli, purposefulness, and sociability specifically in women. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Role of dopamine transporter gene (DAT1) polymorphisms in personality traits variation

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Publisher
Springer Journals
Copyright
Copyright © 2009 by Pleiades Publishing, Ltd.
Subject
Biomedicine; Microbial Genetics and Genomics; Animal Genetics and Genomics; Human Genetics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S1022795409080122
Publisher site
See Article on Publisher Site

Abstract

According to psychobiological model of personality proposed by Cloninger, personality traits characterizing enhanced tendency to novel stimuli, impulsivity and sociability are influenced by dopaminergic system functioning. The present study considered both the main effect of two polymorphic loci (VNTR and 2319G>A) in dopamine transporter gene (DAT1) and the role of distinct DAT1 gene haplotypes in personality traits variation in 592 healthy individuals belonging to different ethnicities (men and women). The results of the study revealed the involvement of VNTR and 2319G>A polymorphisms in Novelty Seeking variation and the main effect of 2319G>A polymorphism on Reward Dependence (TCI) observed in Russian females. Moreover, DAT1 gene haplotype effect on Novelty Seeking in Russian females and on Persistence (TCI) in Tatar females was demonstrated. Reported in the current study results pointed to the involvement of dopaminergic system (DAT1 gene in particular) in variation of personality traits characterizing the tendency to novel stimuli, purposefulness, and sociability specifically in women.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Aug 25, 2009

References

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