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. 2024 Feb 14;15(2):240.
doi: 10.3390/genes15020240.

BDNF, DRD4, and HTR2A Gene Allele Frequency Distribution and Association with Mental Illnesses in the European Part of Russia

Anna Morozova  1   2 , Valeriya Ushakova  1   2   3 , Olga Pavlova  1 , Sakeena Bairamova  1 , Nika Andryshenko  4 , Aleksandra Ochneva  1   2 , Olga Abramova  1   2 , Yana Zorkina  1   2 , Valery A Spektor  1 , Timur Gadisov  1 , Andrey Ukhov  1 , Eugene Zubkov  1 , Kristina Solovieva  2 , Polina Alexeeva  2 , Elena Khobta  2 , Kira Nebogina  1 , Alexander Kozlov  1 , Tatyana Klimenko  1 , Olga Gurina  1 , Svetlana Shport  1 , George Kostuyk  2 , Vladimir Chekhonin  1   5 , Konstantin Pavlov  1   2
Affiliations

BDNF, DRD4, and HTR2A Gene Allele Frequency Distribution and Association with Mental Illnesses in the European Part of Russia

Anna Morozova et al. Genes (Basel). .

Abstract

The prevalence of mental disorders and how they are diagnosed represent some of the major problems in psychiatry. Modern genetic tools offer the potential to reduce the complications concerning diagnosis. However, the vast genetic diversity in the world population requires a closer investigation of any selected populations. In the current research, four polymorphisms, namely rs6265 in BDNF, rs10835210 in BDNF, rs6313 in HTR2A, and rs1800955 in DRD4, were analyzed in a case-control study of 2393 individuals (1639 patients with mental disorders (F20-F29, F30-F48) and 754 controls) from the European part of Russia using the TaqMan SNP genotyping method. Significant associations between rs6265 BDNF and rs1800955 DRD4 and mental impairments were detected when comparing the general group of patients with mental disorders (without separation into diagnoses) to the control group. Associations of rs6265 in BDNF, rs1800955 in DRD4, and rs6313 in HTR2A with schizophrenia in patients from the schizophrenia group separately compared to the control group were also found. The obtained results can extend the concept of a genetic basis for mental disorders in the Russian population and provide a basis for the future improvement in psychiatric diagnostics.

Keywords: BDNF; DRD4; HTR2A; mental disorders; mood disorders; schizophrenia spectrum disorders; single nucleotide polymorphism.

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Conflict of interest statement

The authors declare no conflicts of interest.

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