| 1. |
- Cheema, Balneek Singh, et al.
(författare)
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Association of an Osteopontin gene promoter polymorphism with susceptibility to diabetic nephropathy in Asian Indians
- 2012
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Ingår i: Clinica Chimica Acta. - : Elsevier BV. - 0009-8981. ; 413:19-20, s. 1600-1604
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Tidskriftsartikel (refereegranskat)abstract
- Genetic predisposition has been proposed to be a major determinant in the development of renal complications of diabetes. Osteopontin (OPN) has been suggested to be associated with renal diseases characterized by tubulointerstitial fibrosis and proteinuria. However, information on association of genetic polymorphisms in OPN with diabetic nephropathy is lacking. Thus, the present study was designed with the aim to examine the association of an OPN gene promoter polymorphism with diabetic nephropathy in Asian Indians. OPN C-443T (rs11730582) polymorphism was determined in 1115 type 2 diabetic patients belonging to two independently ascertained cohorts using Real time PCR based Taqman assay. We observed a nearly threefold elevated risk of diabetic nephropathy among carriers of T allele and TT genotype of OPN C-443T polymorphism. Further, this allele was found to be significantly associated with proteinuria and lower eGFR, a hallmark of diabetic nephropathy, in both our cohorts. This is the first study which suggests that OPN C-443T polymorphism may be a significant risk factor for diabetic nephropathy in type 2 diabetic patients. (C) 2012 Elsevier B.V. All rights reserved.
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| 2. |
- Shah, Viral N., et al.
(författare)
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ACAC beta gene (rs2268388) and AGTR1 gene (rs5186) polymorphism and the risk of nephropathy in Asian Indian patients with type 2 diabetes
- 2013
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Ingår i: Molecular and Cellular Biochemistry. - : Springer Science and Business Media LLC. - 0300-8177 .- 1573-4919. ; 372:1-2, s. 191-198
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Tidskriftsartikel (refereegranskat)abstract
- Patients with type 2 diabetes (T2DM) are usually obese and concurrent obesity results into activation of the renin-angiotensin-system (RAS) which is a risk factor for diabetic nephropathy (DN). Gene-gene interaction between acetyl-coenzymeA carboxylase beta (ACAC beta) gene, which is involved in fatty acid metabolism and angiotensin II receptors (AGTR1) gene, which mediates RAS proteins actions on renal tissue, polymorphism with DN have not been studied earlier. The present study was designed with the aim to examine the association of an ACAC beta (rs2268388) and AGTR1 (rs5186) gene polymorphism with the risk of DN in Asian Indians. 1,158 patients with T2DM belonging to two independently ascertained North Indian and one South Indian cohorts were genotyped for ACAC beta (rs2268388) and AGTR1 (rs5186) polymorphism using real time PCR-based Taq-man assay and PCR-RFLP assays. In all the three cohorts, a significantly higher frequency of T allele and TT genotypes of ACAC beta and C allele and CC genotypes of AGTR1 were found in patients with DN as compared to patients without nephropathy. Further, T allele of ACAC beta and C allele of AGTR1 were found to be significantly associated with proteinuria, a hallmark of DN. We also found significant epistatic interactions between these two genes. TT genotypes of ACAC beta gene and CC genotype of AGTR1 gene confers the risk of DN and both genes had significant epistatic interaction in Asian Indian patients with T2DM.
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