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Neurosci Lett. 2009 Dec 11;466(3):128-30. doi: 10.1016/j.neulet.2009.09.040. Epub 2009 Sep 25.

Male specific association between the 5-HTR6 gene 267C/T SNP and suicide in the Portuguese population.

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  • 1Clinical and Molecular Genetics Unit, National Institute of Legal Medicine, Coimbra, Portugal.

Abstract

Serotonergic system dysfunction has been implicated in the etiology of suicide. A large number of genetic studies have focused on the potential involvement of genes coding for components of serotonergic system in suicidal behavior. However, other genes belonging to this system remain to be investigated or have been poorly studied, as is the case of the 5-HT6 receptor (5-HTR6) gene. In this study, we investigated the potential association between the 5-HTR6 gene 267C/T SNP and suicide in a Portuguese population. Blood samples were collected from 179 suicide victims and 189 controls. Genotypes for the 5-HTR6 gene 267C/T SNP were obtained with the restriction enzyme Rsa I. A tendency was found for genotype association between this polymorphism and suicide, but the differences were not statistically significant (chi(2)=5.374, df=2, p=0.068). However, a gender-specific association was detected when comparing the genotype distribution between male suicide victims and male controls (chi(2)=6.988, df=2, p=0.030), suggesting that this SNP might have a role in the etiology of suicide in male subjects in the Portuguese population.

PMID:
19782122
DOI:
10.1016/j.neulet.2009.09.040
[PubMed - indexed for MEDLINE]
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