Abstract
to determine the association of polymorphisms of C677T methylenetetrahydrofolate reductase (MTHFR) gene with essential arterial hypertension (EH) in the group of patients of Belarusian ethnicity. The clinical examination and molecular genetic study of the polymorphism C677T of MTHFR gene by polymerase chain reaction and restriction fragment length polymorphism analysis were performed in 423 people, including 315 patients with EH and 108 healthy individuals. The distribution of C and T alleles of polymorphism C677T of the MTHFR gene in hypertensive patients was 67.8 and 32.2%, in normotensive individuals - 71.8 and 28.2%, respectively. In the group of hypertensive patients, the prevalence of the TT (C677T) genotype of the MTHFR gene was 10.8%, in the healthy group - 5.5%. The TT genotype of the C677T MTHFR gene was more common in hypertensive patients with obesity in comparison with hypertensive patients with body mass index < 29.9 kg/m2 (61.8 vs 38.2%, respectively; p.
Highlights
Ген methylenetetrahydrofolate reductase (MTHFR) кодирует аминокислотную последовательность фермента, играющего ключевую роль в метаболизме фолиевой кислоты, который преобразует 5,10‐метилентетрагидрофолат в 5‐метилтетрагидрофолат, активную форму фолатов, и участвует в превращении гомоцистеина в метионин
molecular genetic study of the polymorphism C677T of MTHFR gene by polymerase chain reaction and restriction fragment length polymorphism analysis were performed in 423 people
The TT genotype of the C677T MTHFR gene was more common in hypertensive patients with obesity
Summary
Objective: to determine the association of polymorphisms of C677T methylenetetrahydrofolate reductase (MTHFR) gene with essential arterial hypertension (EH) in the group of patients of Belarusian ethnicity. The distribution of C and T alleles of polymorphism C677T of the MTHFR gene in hypertensive patients was 67.8 and 32.2 %, in normotensive individuals – 71.8 and 28.2 %, respectively. Difference of distributions of genotypes (the recessive model) of the C677T polymorphism of the MTHFR gene was observed between patients with early EH development (before 45 years, n=86) and 108 normotensive individuals (n=108) (odds ratio [OR] 2.65, 95 % confidence interval [CI] 1.07–6.55). This difference was more pronounced among men (OR 9.55, 95 % CI 1.37–66.53).
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