Plasma Total Nitric Oxide and Endothelial Constitutive Nitric Oxide Synthase (ecNOS) Gene Polymorphism: A Study in a South Indian Population
2011
Gururajan, Priya | Gurumurthy, Prema | Victor, Dolice | Srinivasa Nageswara Rao, G | Sai Babu, R | Sarasa Bharati, Arumugam | Cherian, K. M
In an analysis of the possible association of endothelial constitutive nitric oxide synthase (ecNOS) gene polymorphism and plasma nitric oxide levels in patients with acute coronary syndrome, we investigated 106 patients with the syndrome and 100 healthy controls. Genotype was determined using the polymerase chain reaction; plasma nitric oxide levels were found using ELISA. The genotype frequencies for the a/b polymorphism in the control group were 77% for bb, 19% for ab, and 4% for aa. In the patients, genotype frequencies were 55% bb, 34% ab, and 11% aa. The allele frequencies were 28% a and 72% b among the patients and 13% a and 87% b among control subjects. Our findings showed a significant association of the ecNOS gene polymorphism with acute coronary syndrome in the South Indian population.
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