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Susceptiveness of Vitamin K epOxide Reductase Complex Subunit 1 Gene Polymorphism in Essential Hypertension
Didem Turgut Cosan1, Huseyin Ugur Yazıcı2, Emine Colak1
11 Department of Medical Biology, Faculty of Medicine, Eskisehir Osmangazi University , Eskisehir, Turkey .
Background:
Essential hypertension (EH) is defined as a worldwide public health problem and one of the important risk factors for development of human coronary artery disease. Increased peripheral arterial resistance is one of the distinguishing characteristics of EH. The extracellular deposition of calcium in the arterial wall is defined as vascular calcification, which results in aortic stiffness and elevation of blood pressure. Regulation of vascular calcification is physiologically limited by γ-carboxylated proteins that regulate mineralization. Any deficiencies related to mineralization influence vascular calcification. As a result of vitamin-K deficiency or any problem associated with the vitamin K epOxide reductase complex subunit 1 (VKORC1) gene, Glu cannot be transformed to Gla and calcification initiates in blood vessels, myocardium, and cardiac.
Objective:
The aim of the study was to investigate the potential association of VKORC1 polymorphisms with the risk of EH.
Materials And Methods:
There were 100 individuals diagnosed with EH and 100 healthy individuals involved in the study. 3673G/A (rs9923231) and 9041G/A (rs7294) polymorphisms in the VKORC1 gene were determined by the PCR-restriction fragment length polymorphism method.
Results:
A significant difference was found between the rs7294 polymorphisms ratios of the case and control groups, but significant differences weren't found in distribution of the rs9923231 alleles. Finally it was determined that the GG genotype provides a 3.97-fold increased risk for EH compared to the AA genotype for the rs7294 polymorphism.
Conclusions:
Our results suggest that the VKORC1 gene rs7294 polymorphism is important for the development of EH.
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