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    Aldosterone Synthase CYP11B2 Gene Promoter Polymorphism in a Turkish Population With Chronic Kidney Disease
    (Iranian Soc Nephrolgy, 2015) Yilmaz, Meral; Sari, Ismail; Bagci, Binnur; Gumus, Erkan; Özdemir, Öztürk
    Introduction. It has been shown that gene polymorphisms influence the development and progression of chronic kidney disease (CKD). Many studies have indicated that aldosterone synthase CYP11B2 gene polymorphism (-344C>T) influences the aldosterone level, urinary aldosterone excretion, blood pressure, and left ventricular size and mass. We aimed to investigate whether there is an effect of CYP11B2 -344C>T polymorphism on the development of CKD in a Turkish population. Material and Methods. A total of 240 patients with stage 5 CKD and 240 age- and sex-matched healthy individuals were included in the study. Genotyping of CYP11B2 gene -344 T>C promoter polymorphism was carried out using polymerase chain reaction and restriction fragment length polymorphism methods. Results. No significant differences were found in the genotype distribution of CYP11B2 -344 C>T polymorphism between the patients and controls; however, -344 C>T polymorphism was significantly more frequent among the CKD patients with diabetes mellitus as compared to those with it (P = .02). Diabetic CKD patients with TC genotype had a 2-fold increased risk for development of the disease than the CKD patients without diabetes mellitus (odds ratio, 2.21; 95% confidence interval, 1.04 to 4.67). Conclusions. Our study suggests that the CYP11B2 gene -344 C>T polymorphism may have an effect on the development of CKD in diabetic patients.