The role of polymorphism of AGT genes (rs4762) and GNB3 (rs5443) in the development of essential hypertension

Abstract

Assess the role of the polymorphism of AGT genes (rs4762) and GNB3 genes (rs5443) in the development of the essential arterial hypertension separately and by combining their polymorphic variants.Material and methods. The case-control study involved 100 patients with EAH stage II, 1-3 degrees of blood pressure (BP), high and very high cardiovascular risk. Among the patients, 21% (21) constituted men, and 79%(79) were women. The mean age of patients was 59.86±6.22 y.o. The control group comprised 60 almost healthy individuals, relevant in age (49.13±6.28y.o.) and gender distribution (63% - women, 37% - men). To study of polymorphism of AGT (rs4762) and GNB3 (rs5443) genes, we performed a qualitative polymerase chain reaction (PCR) in real time.Results. In patients with EAG residents of Northern Bukovyna mutated T-allele of AGT gene (rs4762) is found in 15,97% of cases, which is more frequent than in practically healthy by 9,72% (p=0,023); mutations of AGT gene in homozygous species in the control group have not met at all. Binary logistic regression confirmed an increase in the risk of inheriting EAH according to dominant and additive models in carriers of the minor T-allele of the AGT gene (rs4762) almost 3 times higher than in homozygotes for the major C-allele (р=0,04 і р=0,03). Inheritance of EAH is not associated with polymorphic variants of the GNB3 gene (rs5443).
 Conclusions. Тhe T-allele of the AGT gene (rs4762) increases the risk of development of EAH almost 3 times, while the polymorphic variants of the GNB3 gene (rs5443) are not the predictors of the emergence of EAH in the population.