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The effect of genetic variation of the serotonin 1B receptor gene on impulsive aggressive behavior and suicide

The effect of genetic variation of the serotonin 1B receptor gene on impulsive aggressive... Impulsive–aggressive behaviors (IABs) are regarded as possible suicide intermediate phenotypes, mediating the relationship between genes and suicide outcome. In this study, we aimed to investigate the putative relationship between genetic variation at the 5‐HT1B receptor gene, which in animal models is involved in impulse‐aggression control, IABs, and suicide risk. We investigated the relationship of variation at five 5‐HT1B loci and IAB measures in a sample of 696 subjects, including 338 individuals who died by suicide and 358 normal epidemiological controls. We found that variation at the 5‐HT1B promoter A‐161T locus had a significant effect on levels of IABs, as measured by the Buss–Durkee Hostility Inventory (BDHI). Suicides also differed from controls in distribution of variants at this locus. The A‐161T locus, which seems to impact 5‐HT1B transcription, could play a role in suicide predisposition by means of mediating impulsive–aggressive behaviors. © 2007 Wiley‐Liss, Inc. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png American Journal of Medical Genetics part B Wiley

The effect of genetic variation of the serotonin 1B receptor gene on impulsive aggressive behavior and suicide

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References (88)

Publisher
Wiley
Copyright
Copyright © 2007 Wiley‐Liss, Inc., A Wiley Company
ISSN
1552-4841
eISSN
1552-485X
DOI
10.1002/ajmg.b.30521
pmid
17510950
Publisher site
See Article on Publisher Site

Abstract

Impulsive–aggressive behaviors (IABs) are regarded as possible suicide intermediate phenotypes, mediating the relationship between genes and suicide outcome. In this study, we aimed to investigate the putative relationship between genetic variation at the 5‐HT1B receptor gene, which in animal models is involved in impulse‐aggression control, IABs, and suicide risk. We investigated the relationship of variation at five 5‐HT1B loci and IAB measures in a sample of 696 subjects, including 338 individuals who died by suicide and 358 normal epidemiological controls. We found that variation at the 5‐HT1B promoter A‐161T locus had a significant effect on levels of IABs, as measured by the Buss–Durkee Hostility Inventory (BDHI). Suicides also differed from controls in distribution of variants at this locus. The A‐161T locus, which seems to impact 5‐HT1B transcription, could play a role in suicide predisposition by means of mediating impulsive–aggressive behaviors. © 2007 Wiley‐Liss, Inc.

Journal

American Journal of Medical Genetics part BWiley

Published: Dec 5, 2007

Keywords: suicide; 5‐HT 1B ; impulsive behavior; aggression

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