[Association of gene polymorphisms DRD3 rs6280, COMT rs4680 and HTR2A rs7322347 with schizophrenia].

Objective: To check the association of genetic polymorphisms rs6280 of the DRD3 gene, rs4680 of the gene, rs7322347 of the gene with schizophrenia.

Material And Methods: The sample included 300 inpatients with paranoid schizophrenia. Inclusion criteria: age 18-50 years, established diagnosis «Schizophrenia, paranoid form», duration of psychiatric disorders not less than 5 years. The healthy control group consisted of 290 subjects. The association between polymorphisms and the study groups was assessed by logistic regression.

Results: The CC genotype of the rs6280 polymorphism is associated with schizophrenia (OR 3.37 (1.50; 8.03)). The TT genotype of the rs7322347 polymorphism is associated with controls (OR 1.83 (1.25; 2.68)).

Conclusion: These analyses confirmed the hypothesis that the genetic polymorphisms rs7322347 of the gene (=0.006) and rs6280 of the gene (=0.004) were associated with the disease. The hypothesis of an association of the rs4680 polymorphism of the gene could not be confirmed.