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A study of new molecular genetic markers of sudden cardiac death identified in the analysis of the results of whole-exome sequencing

https://doi.org/10.25557/2073-7998.2020.05.33-35

Abstract

The aim of the study is to confirm the association with sudden cardiac death of single-nucleotide polymorphisms rs77270326, rs34643859, identified during own whole-exome sequencing as possible molecular genetic markers of sudden cardiac death. In the group of sudden cardiac death (n = 400, the average age of the dead - 53.2 ± 8.7 years, the proportion of men - 70.9%, women - 29.1%) and the control group (n = 400, average age - 53 , 1 ± 8.3 years, men - 68.3%, women - 31.7%) genotyping of the selected polymorphisms was conducted by PCR-RFLP method according to the authors’ protocols. According to the frequencies of genotypes and alleles of rs77270326 polymorphism, no statistically significant differences were found between the groups (p>0.05). A group of women under the age of 50 revealed a statistically significant decrease in the proportion of carriers of the TT genotype in the group of sudden cardiac death (32.3%) compared with the control group (60.0%) (OR = 0.32, 95% CI 0, 11-0.91, p = 0.04). Thus, the rs77270326 is not associated with sudden cardiac death. For women under the age of 50, the TT genotype of rs34643859 polymorphism is associated with a protective effect against sudden cardiac death.

About the Authors

A. A. Ivanova
Research Institutе of Internal and Preventive Medicine - Branch of the Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences
Russian Federation


E. S. Melnikova
Research Institutе of Internal and Preventive Medicine - Branch of the Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences
Russian Federation


A. A. Gurazheva
Research Institutе of Internal and Preventive Medicine - Branch of the Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences
Russian Federation


S. K. Maljutina
Research Institutе of Internal and Preventive Medicine - Branch of the Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences
Russian Federation


V. P. Novoselov
Research Institutе of Internal and Preventive Medicine - Branch of the Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences
Russian Federation


I. A. Rodina
Research Institutе of Internal and Preventive Medicine - Branch of the Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences
Russian Federation


O. V. Hamovich
Research Institutе of Internal and Preventive Medicine - Branch of the Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences
Russian Federation


V. N. Maksimov
Research Institutе of Internal and Preventive Medicine - Branch of the Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences
Russian Federation


Review

For citations:


Ivanova A.A., Melnikova E.S., Gurazheva A.A., Maljutina S.K., Novoselov V.P., Rodina I.A., Hamovich O.V., Maksimov V.N. A study of new molecular genetic markers of sudden cardiac death identified in the analysis of the results of whole-exome sequencing. Medical Genetics. 2020;19(5):33-35. (In Russ.) https://doi.org/10.25557/2073-7998.2020.05.33-35

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ISSN 2073-7998 (Print)