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  • Title: Association study between the novel functional polymorphism of the serotonin transporter gene and suicidal behaviour in schizophrenia.
    Author: De Luca V, Zai G, Tharmalingam S, de Bartolomeis A, Wong G, Kennedy JL.
    Journal: Eur Neuropsychopharmacol; 2006 May; 16(4):268-71. PubMed ID: 16274962.
    Abstract:
    A serotonin transporter gene linked polymorphic region (5-HTTLPR) has been investigated in several genetic association studies, including studies of schizophrenia and suicidality. The current study was designed to examine whether the new long (A/G) variant polymorphism of the 5-HTT gene may be associated with suicide attempts of 290 Caucasian schizophrenic patients. Among these patients, 92 had a history of suicide attempt. No association with history of suicide attempt was found in the multiallelic 5-HTTLPR (p = 0.305), however we found significant association with the intron 2 VNTR polymorphism (p = 0.018). When we performed a haplotype analysis, we found association between suicide attempt and haplotype distribution (p = 0.031). These findings suggest that the intron 2 VNTR polymorphism in serotonin transporter gene may influence suicidal behaviour in schizophrenia.
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