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The Frequency of the Minor Polymorphisms in the CYP2C19, VEGFR-2 Genes, and Clinical Outcomes in Russian and Buryat Patients with Acute Coronary Syndrome.

Abstract：

:Aim: To determine the differences in the frequencies of polymorphic variants at the rs4244285(*2), rs4986893 (*3), rs12248560 (*17), loci of the CYP2C19 gene, and the rs2305948 locus of the VEGFR-2 gene in patients receiving clopidogrel treatment as part of a 30-day clinical outcome trial in the Russian and Buryat regions of East Siberia. Methods: The study included 118 Russian (from Irkutsk) and 109 Buryat (from Ulan-Ude) patients with emergency admission for percutaneous coronary interventional treatment of acute coronary syndrome (ACS). The patients were stratified by the presence of the CYP2C19*2, CYP2C19*3, CYP2C19*17 alleles, and the VEGFR-2 rs2305948 allele. Safety and efficacy endpoints were analyzed 30 days following coronary stenting (CS). Results: There was no significant difference found in the Russian and Buryat patients in terms of the frequency of the CYP2C19*2 minor allele (10.2% in the Russian against 12.8% in the Buryat patients, odds ratio [OR] = 1.167, confidence interval [CI] 0.729-2.323). However, the frequency of the CYP2C19*3 allele was significantly higher in the Buryat patients than in the Russian patients (12.8% vs. 2.1%), OR = 5.600, CI 2.579-17.974; while in the Russian patients the frequency of the CYP2C19*17 allele was higher than the Buryat patients (23.3% in Russian patients vs. 10.1% in Buryat, OR = 2.500, CI 1.587-4.618). No significant differences were found in the prevalence of the VEGFR-2 rs2305948 alleles between the two groups of patient populations (12.5 in Buryat patients vs. 11.5% in Russian, OR = 1.040, CI 0.614-1.980). The Buryat patients were highly significantly more likely to experience adverse effects associated with the inefficacy of clopidogrel treatment, that is, early recurrent ischemic pains after CS, than the Russian patients (χ2 = 11.325, p < 0.001). Conclusion: The Buryat patients receiving clopidogrel treatment after CS have a reduced risk of small or large hemorrhages, and an increased risk of thrombotic complications compared with Caucasians. These results suggest that other antiplatelet drugs should be used for treating the Buryat patients with ACS.

journal_name

Genet Test Mol Biomarkers

journal_title

Genetic testing and molecular biomarkers

authors

Zelenskaya EM,Lifshits GI,Nikolaev KY,Donirova OS,Altayev VD,Apartsin KA,Voronina EN,Protasov KV,Sychev DA

doi

10.1089/gtmb.2019.0216

subject

Has Abstract

pub_date

2020-06-01 00:00:00

pages

338-342

issue

eissn

1945-0265

issn

1945-0257

journal_volume

pub_type

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The Frequency of the Minor Polymorphisms in the CYP2C19, VEGFR-2 Genes, and Clinical Outcomes in Russian and Buryat Patients with Acute Coronary Syndrome.