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  • Title: Family-based association study of 5-HT(2A) receptor T102C polymorphism and suicidal behavior in Ashkenazi inpatient adolescents.
    Author: Zalsman G, Frisch A, Baruch-Movshovits R, Sher L, Michaelovsky E, King RA, Fischel T, Hermesh H, Goldberg P, Gorlyn M, Misgav S, Apter A, Tyano S, Weizman A.
    Journal: Int J Adolesc Med Health; 2005; 17(3):231-8. PubMed ID: 16231475.
    Abstract:
    UNLABELLED: Suicidal behavior runs in families and is partially genetically determined. Since greater serotonin 5-HT(2A) receptor binding has been reported in postmortem brain and platelets of suicide victims, the 5-HT(2A) receptor gene polymorphism T102C became one of the candidate sites in the study of suicide and impulsive-aggressive traits. However, studies that examined the association of this polymorphism with suicidality have contradictory results. This study used a family-based method and one homogenous ethnic group to overcome ethnic stratification in order to test this association. METHODS: Thirty families of inpatient adolescents from Jewish Ashkenazi origin, with a recent suicide attempt, were genotyped. All subjects were interviewed for clinical diagnosis, depressive and impulsive-aggressive traits and demographic data. Allele frequencies were assessed using the Haplotype Relative Risk method for trios. RESULTS: No difference was found in allelic distribution between transmitted and non-transmitted alleles. There was no significant association of genotype with any of the clinical traits CONCLUSIONS: These preliminary results suggest that the 5-HT(2A) T102C polymorphism is unlikely to be associated with suicidal behavior and related traits in adolescent suicide attempters.
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