Preliminary Analysis of PON3 rs2375003 Polymorphism in Pakistani Patients with Coronary Artery Disease

Abstract

Coronary artery disease (CAD) is an inflammatory heart disease characterized by the narrowing of coronary arteries. Paraoxonase 3 (PON3) is a candidate gene for protection against CAD development as it reduces oxidative stress and lipid peroxidation. The present study aimed to explore the association of PON3 rs2375003 polymorphism with CAD development and serum lipid levels in the Pakistani population. Study subjects included 300 CAD patients and 300 age and sex matched healthy individuals. The genotyping of rs2375003 polymorphism was done using an allele specific polymerase chain reaction and serum lipid levels were determined. In this study, the genotype frequencies of rs2375003 polymorphismin in CAD patients were TT (2%), CT (8%), CC (90%) as compared to TT (3%), CT (6%), CC (91%) in the healthy subjects. No association was observed between rs2375003 polymorphism and CAD risk (p>0.05). The CT genotype of rs2375003 polymorphism marginally increased the risk for CAD development (OR: 1.36; 95% CI 0.72-2.56) by causing a marginal rise in total cholesterol, low density lipoprotein cholesterol and triglyceride levels, and a marginal drop in high density lipoprotein cholesterol levels. The CT genotype of rs2375003 polymorphism and altered lipid levels might act as potential risk factors in the etiology of CAD in the Pakistani population.