The objective was to analyze the association of rs4977574-polymorphic variants of the ANRIL gene with the development of acute coronary syndrome in individuals with different body mass index. Materials and methods. The venous blood of 429 people (234 patients with acute coronary syndrome and 195 people in the control group) was used for the study. Genotyping of patients by rs4977574-polymorphic variants of the ANRIL gene was performed by real-time polymerase chain reaction (Real-time PCR) in the presence of TaqMan assay C_31720978_30. Statistical analysis of the results of the study was performed using SPSS software (version 17.0). Results. The distribution of genotypes according to SNP rs4977574 of the ANRIL gene in the group of patients with ACS and the control group among individuals with BMI < 25 kg/m2 does not differ. Among patients with BMI 25 kg/m2 the genotype distribution of the rs4977574-polymorphic variant of the ANRIL gene was statistically significant (р = 0.035). In the group of patients with BMI > 25 kg/m2 according to recessive (Pobserv = 0.014; ORobserv = 1.876, 95 % СІ = 1.137–3.095) and additive (Рobserv = 0.014; ORobserv = 2.118, 95% СІ = 1.166–3.849) models of inheritance before making adjustment, people with G/G genotype had a double risk of acquiring ACS than carriers of the dominant allele. After the adjustment, corresponding models of inheritance had the same risk rate – for recessive model (Рadjust = 0.013; ORadjust = 1.951, 95% СІ = 1.149–3.313) and additive model (Рadjust = 0.026; ORadjust = 2.039, 95 % СІ = 1.087–3.826). Conclusions. Individuals with BMI > 25 kg/m2, which were carriers of G/G genotype had a 2 times higher risk to acquire ACS than the individuals with the dominant allele. Prospects for further research. Further research will be aimed at studying the impact of ANRIL polymorphism upon the risk of ACS development depending on other risk factors.

Annotation. The aim of the study was to analyze the distribution of rs4977574-polymorphic variants of the ANRIL gene in patients with acute coronary syndrome of different sex. The venous blood of 234 patients with acute coronary syndrome (ACS) and 195 people without cardiac pathology was used for the study. DNA was isolated from whole venous blood using the GeneJET Whole Blood Genomic DNA Purification Mini Kit (ThermoFisher Scientific, USA). rs4977574 ANRIL gene polymorphism was studied by real-time PCR reaction in the presence of TaqMan assay C_31720978_30. Statistical analysis of the study was performed using the SPSS program (version 17.0). A difference was found when comparing the frequencies of genotypes at the polymorphic site rs4977574 of the ANRIL gene in their distribution (p=0,035). According to the results of logistic regression, it was detected that in the recessive (p=0,015) and additive (p=0,012) inheritance models, carriers of the G/G genotype are approximately 2 times more likely to develop ACS than carriers of the A-allele. The reliability of the results was maintained after adjustments for gender, age, B<I, smoking habits, diabetes and stress (p=0,049 for the recessive model; p=0,037 for the additive model). Thus, individuals with the rs4977574 G/G genotype polymorphism of the ANRIL long non-coding RNA gene have a 2 times higher risk of developing ACS than dominant allele carriers. Further research will focus on the association of ANRIL polymorphism with the risk of ACS depending on other risk factors.

The Aim. To test the possible association between ANRIL rs4977574 polymorphism and the development of atherosclerosis and cardiovascular complications (acute coronary syndrome (ACS) and large artery stroke (LAS)) in Ukrainian population. Materials and Methods. 195 patients with ACS, 200 patients with LAS, and 234 control subjects were enrolled in this case-control study. Real-time PCR was used for ANRIL rs4977574 genotyping. SPSS software package (version 17.0, IBM, USA) was used for data analysis. Results. A significant association between rs4977574 polymorphism and the risk of atherosclerosis and cardiovascular complications was found under the recessive model regardless of adjustment for nongenetic risk factors ( OR = 1.551 ; p = 0.025 ). Moreover, the link between rs4977574 locus and serum levels of total cholesterol ( p = 0.021 ) and LDL ( p = 0.022 ) was detected. A separate analysis in subgroups demonstrated the association of rs4977574 polymorphism with increased risk of ACS under the recessive model ( OR = 1.501 ; p = 0.048 ). No relation between rs4977574 site and LAS development was revealed ( p > 0.05 ). Conclusion. Obtained data suggested that ANRIL rs4977574-GG genotype can be a possible genetic marker for the development of atherosclerosis and cardiovascular complications in Ukrainian population.