Association of endothelial nitric oxide synthase gene (G894T) polymorphism and hypertension in diabetic Bataknese patients

Abstract

Aim To assess endothelial nitric oxide synthase (eNOS) gene (G894T) polymorphism and nitric oxide (NO) level in hypertensive diabetic Bataknese patients. Methods A hospital-based, case control study (hypertensive and normotensive diabetic patient) was conducted. Genotyping of eNOS gene (G894T) was done using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). Nitric oxide was quantified by sandwich enzyme-linked immunosorbent assay (Sandwich ELISA). Results GT polymorphism and T allele were higher in the hypertensive diabetic patients, 37.5% (p=0.6) and 54% (p=0.39), respectively. Nitric oxide level tended to be lower in the hypertensive diabetic patients (88.87µmol/L) comparing to the normotensive (95.42 µmol/L (p=0.54), as well as GT and TT polymorphism type (p=0.75). Conclusion eNOS gene (G894T) polymorphism is not associated with NO level and hypertension in the diabetic Bataknese patients.

Keywords

• diabetes mellitus
• hypertension
• nitric oxide
• nitric oxide synthase type iii
• polymorphism