Please use this identifier to cite or link to this item: https://doi.org/10.2337/diabetes.53.3.865
Title: Scrutiny of the Glutamine-Fructose-6-Phosphate Transaminase 1 (GFPT1) Locus Reveals Conserved Haplotype Block Structure not Associated with Diabetic Nephropathy
Authors: Ng, D.P.K. 
Walker, W.H.
Chia, K.-S. 
Choo, S.
Warram, J.H.
Krolewski, A.S.
Issue Date: Mar-2004
Citation: Ng, D.P.K., Walker, W.H., Chia, K.-S., Choo, S., Warram, J.H., Krolewski, A.S. (2004-03). Scrutiny of the Glutamine-Fructose-6-Phosphate Transaminase 1 (GFPT1) Locus Reveals Conserved Haplotype Block Structure not Associated with Diabetic Nephropathy. Diabetes 53 (3) : 865-869. ScholarBank@NUS Repository. https://doi.org/10.2337/diabetes.53.3.865
Abstract: Glutamine-fructose-6-phosphate transaminase 1 (GFAT) is the rate-limiting enzyme of the hexosamine pathway that has been implicated in the pathogenesis of diabetic nephropathy. As such, we hypothesized that GFPT1, which encodes for GFAT, may confer genetic susceptibility to this complication among Caucasians. Screening of all known functional regions of GFPT1 revealed six single nucleotide polymorphisms (SNPs) that were located in the promoter, introns, and 3′ untranslated region. The ∼60 kb GFPT1 locus was encompassed in a single conserved haplotype block, and two tagging SNPs were sufficient to capture >90% of the haplotype diversity. Analysis of these SNPs in a case-control study made up of type 1 diabetic subjects (324 case subjects with diabetic nephropathy and 289 control subjects with normoalbuminuria despite > 15 years of diabetes) revealed no significant association even after stratification by sex, diabetes duration, glucose control, and blood pressure. Similar results were obtained among type 2 diabetic subjects (202 case and 114 control subjects). Genetic variation in GFPT1 is thus unlikely to have a major impact on susceptibility to diabetic nephropathy.
Source Title: Diabetes
URI: http://scholarbank.nus.edu.sg/handle/10635/113642
ISSN: 00121797
DOI: 10.2337/diabetes.53.3.865
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