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  Serotonin transporter polymorphisms and measures of impulsivity, aggression, and sensation seeking among African-American cocaine-dependent individuals

Patkar, A. A., Berrettini, W. H., Hoehe, M. R., Thornton, C. C., Gottheil, E., Hill, K., et al. (2002). Serotonin transporter polymorphisms and measures of impulsivity, aggression, and sensation seeking among African-American cocaine-dependent individuals. Psychiatry Research, 110(2), 103-115.

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 Creators:
Patkar, Ashwin A., Author
Berrettini, Wade H., Author
Hoehe, Margret R.1, Author
Thornton, Charles C., Author
Gottheil, Edward, Author
Hill, Kevin, Author
Weinstein, Stephen P., Author
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1Max Planck Society, ou_persistent13              

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Free keywords: Serotonin; Genetics; Substance abuse; Personality; Behavior
 Abstract: Considerable evidence indicates that serotonergic mechanisms, particularly the serotonin transporter (5HTT), may mediate central effects of cocaine and may also be involved in impulsive and aggressive behavior. We investigated whether polymorphisms in the 5HTT gene were related to traits of impulsivity, sensation seeking, and aggression among cocaine abusers. Standardized measures of these personality traits were obtained in a sample of 105 severely affected cocaine-dependent African-American subjects and 44 African-American controls. Two polymorphisms of the 5HTT gene were examined involving the 5' promoter (5HTTLPR) region and a 17 base pair variable-number-tandem-repeat (VNTR) marker among cocaine patients. No significant relationships were observed between polymorphic variants of the 5HTTLPR and VNTR regions and scores on any of the trait measures. Similarly, demographic variables and measures of severity of substance use and depression were unrelated to allele frequencies or genotype distributions of the variants among cocaine patients. As expected, cocaine patients scored significantly higher on total scores of impulsivity, aggression, and sensation seeking compared to controls. The findings do not seem to support an association between these polymorphisms in the 5HTT gene and impulsive-aggressive traits among cocaine-dependent African-American individuals.

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Language(s): eng - English
 Dates: 2002-04-25
 Publication Status: Issued
 Pages: -
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 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 27657
 Degree: -

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Title: Psychiatry Research
Source Genre: Journal
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Pages: - Volume / Issue: 110 (2) Sequence Number: - Start / End Page: 103 - 115 Identifier: -