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  • Title: Relationship of angiotensin-converting enzyme gene polymorphism with nephropathy associated with Type 2 diabetes mellitus in Asian Indians.
    Author: Movva S, Alluri RV, Komandur S, Vattam K, Eppa K, Mukkavali KK, Mubigonda S, Saharia S, Shastry JC, Hasan Q.
    Journal: J Diabetes Complications; 2007; 21(4):237-41. PubMed ID: 17616353.
    Abstract:
    OBJECTIVE: Diabetic nephropathy (DN) has become the leading cause of end-stage renal disease, but the pathogenesis of this condition is not exactly understood. Several studies from different parts of the world have examined angiotensin-converting enzyme (ACE) gene polymorphism as a candidate for DN. Two studies yielding controversial results have been reported from India. To rule out this discrepancy, we carried out a hospital-based study on a cohort from our population to determine whether ACE gene polymorphism is associated with DN. RESEARCH DESIGN AND METHODS: ACE gene polymorphism was analyzed by polymerase chain reaction in 460 individuals consisting of 174 cases of DN, 175 cases of Type 2 diabetes mellitus (DM), and 111 controls. The DN cases included in the study were Type 2 DM cases with serum creatinine >1.5 mg/dl and serum albumin >30 mg/dl in a 24-h urine sample. RESULTS: ACE insertion/deletion genotyping analysis showed DD genotype in 22.75% of DN cases, 15.42% of Type 2 DM cases, and 21.62% of controls. Chi-square test between the DN group and the control group did not show a significant difference in D allele. However, the difference was significant at P<.05 between the DN group and the DM group. The odds ratio was 2.0953 (95% confidence interval=1.35-3.2522), indicating a significant association of DD genotype and D allele with DN. CONCLUSION: Our data enable us to conclude that Asian Indians with D allele and Type 2 DM are at greater risk for developing DN.
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