Lack of Association Between Matrix Metalloproteinase-9 and Endothelial Nitric Oxide Synthase Gene Polymorphisms and Coronary Artery Disease in Turkish Population

Abstract

Polymorphic variants of genes encoding proteins involved in vascular remodeling may genetically diverge among different populations and play a role in the susceptibility to the coronary artery disease (CAD). MMP-9-1562 C/T (rs3918242), eNOS T-786C (rs2070744), and Glu298Asp (rs1799983) are among the most studied of these polymorphisms. The aim of this study was to determine the relationship between CAD and these polymorphisms in the Turkish population. The analysis included 146 CAD+ and 122 CAD- individuals. Genomic DNA was isolated from whole blood and genotyping was performed by the PCR-RFLP method. No significant associations were found between -1562 C/T (p=0.557), Glu298Asp (p=0.432), and -786 T/C (p=0.055) polymorphisms and CAD. The distribution of each haplotype also did not differ between CAD+ and the CAD- samples (p>0.05). The present investigation is the first to study an association between -1562 C/T polymorphism and CAD in the Turkish population. In conclusion, no appreciable differences between CAD+ and CAD- samples were found in terms of polymorphisms mentioned above.