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Analysis of T102C 5HT2A Polymorphism in Brazilian Psychiatric Inpatients: Relationship with Suicidal Behavior
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Analysis of T102C 5HT 2A Polymorphism in Brazilian Psychiatric Inpatients: Relationship with Suicidal Behavior H. Correa1, 2  , L. De Marco3, W. Boson2, 3, M. M. Viana3, V. F. S. Lima3, A. C. Campi-Azevedo3, J. C. M. Noronha3, C. Guatimosim1 and Marco A. Romano-Silva3 | (1) | Department of Morfologia, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil |
| (2) | Laboratório de Farmacogenética, Serviço de Psiquiatria, Hospital das Clínicas, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil |
| (3) | Department of Farmacologia, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil |
Abstract 1. Central serotonergic dysfunction and genetic factors are associated with suicidal behavior in psychiatric patients. The goal of this study was to examine the association between the 5-HT 2A gene polymorphism (102T/C) and suicide in a sample of Brazilian psychiatric inpatients. 2. We studied 225 subjects. Genotypic frequencies were obtained after DNA extraction and the region of 5-HT2A/T102C containing the polymorphic site amplified by the polymerase chain reaction and digested with the restriction enzyme HpaII. 3. No differences were found between patients with and without suicide attempt history. Patients with a history of severe suicide attempts also did not exhibit different genotypic frequencies when compared with patients without a suicide attempt history. 4. These results suggest that the 5HT2A gene polymorphism (102T/C) may not be involved in the genetic susceptibility to suicidal behavior. suicide - serotonin - 5-HT2A polymorphism
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