501. Male-specific association between the 5-HTTLPR S allele and suicide attempts in alcohol-dependent subjects.
- Author
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Limosin F, Loze JY, Boni C, Hamon M, Adès J, Rouillon F, and Gorwood P
- Subjects
- Adult, Case-Control Studies, Female, Genotype, Humans, Male, Middle Aged, Risk Factors, Serotonin Plasma Membrane Transport Proteins, Sex Factors, Alcoholism genetics, Alcoholism psychology, Genetic Variation, Membrane Glycoproteins genetics, Membrane Transport Proteins genetics, Nerve Tissue Proteins genetics, Suicide, Attempted
- Abstract
Changes in serotoninergic neurotransmission have been implicated in the pathogenesis of suicidal behavior and alcohol dependence. Previous studies have demonstrated an association between suicide attempts and the 5-HTTLPR S allele in alcohol-dependent subjects. We investigated the frequency of the S allele of 5-HTTLPR in a sample of 100 French Caucasian alcohol-dependent inpatients (48 men and 52 women) with and without a history of suicide attempts. The frequencies of 5-HTTLPR genotypes did not differ significantly between men and women. A history of at least one suicide attempt was more frequent in women than in men (57.5% versus 31.3%, respectively, p=0.008). Logistic regression analysis showed that the presence of the S allele of 5-HTTLPR was related to a life-time risk of suicide attempts, but only in male subjects (p=0.05). There seems to be an allelic association between the 5-HTTLPR S allele and suicidal behavior in alcohol-dependent subjects, but this relationship is restricted to male subjects.
- Published
- 2005
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