Abstract
Genetic predisposition alongside with environmental factors play a major role in the pathogenesis of coronary heart disease, causing the deregulation of various biochemical processes leading to the disease onset. Antioxidant system deregulation, marked mainly by lipid peroxidation products and a number of enzymes, is known to be one of the risk factors for coronary heart disease. A genetic defect might lead to a change in enzyme activity and inhibition of antioxidant protection. However, the pathogenic factors and antioxidant system deregulation mechanisms in different clinical courses of coronary heart disease are not studied enough as phenotypic expression of genetic polymorphism is largely dependent on the gene pool and the living conditions of a particular population, explaining the controversial data on the association of polymorphisms candidate genes with the risk of coronary heart disease. Currently, the role of genes encoding antioxidant system enzymes in predisposition to coronary heart disease development is not sufficiently studied, and research results are contradictory. The review summarizes the current data on the antioxidant system genes (superoxide dismutase enzymes, glutathione peroxidase and catalase) genetic polymorphisms association with the risk of coronary heart disease (as an acute myocardial infarction, angina рectoris).
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