Genome-wide Association Studies Identify Genetic Loci Associated With Albuminuria in Diabetes.
Details
Request a copy Under indefinite embargo.
UNIL restricted access
State: Public
Version: Final published version
License: Not specified
UNIL restricted access
State: Public
Version: Final published version
License: Not specified
Serval ID
serval:BIB_F3223C4A8D96
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Genome-wide Association Studies Identify Genetic Loci Associated With Albuminuria in Diabetes.
Journal
Diabetes
Working group(s)
DCCT/EDIC
ISSN
1939-327X
ISSN-L
0012-1797
Publication state
Published
Issued date
2016
Peer-reviewed
Oui
Volume
65
Number
3
Pages
803-817
Language
english
Notes
Publication types: Journal Article Publication Status: ppublish
Abstract
Elevated concentrations of albumin in the urine, albuminuria, are a hallmark of diabetic kidney disease and are associated with an increased risk for end-stage renal disease and cardiovascular events. To gain insight into the pathophysiological mechanisms underlying albuminuria, we conducted meta-analyses of genome-wide association studies and independent replication in up to 5,825 individuals of European ancestry with diabetes and up to 46,061 without diabetes, followed by functional studies. Known associations of variants in CUBN, encoding cubilin, with the urinary albumin-to-creatinine ratio (UACR) were confirmed in the overall sample (P = 2.4 × 10(-10)). Gene-by-diabetes interactions were detected and confirmed for variants in HS6ST1 and near RAB38/CTSC. Single nucleotide polymorphisms at these loci demonstrated a genetic effect on UACR in individuals with but not without diabetes. The change in the average UACR per minor allele was 21% for HS6ST1 (P = 6.3 × 10(-7)) and 13% for RAB38/CTSC (P = 5.8 × 10(-7)). Experiments using streptozotocin-induced diabetic Rab38 knockout and control rats showed higher urinary albumin concentrations and reduced amounts of megalin and cubilin at the proximal tubule cell surface in Rab38 knockout versus control rats. Relative expression of RAB38 was higher in tubuli of patients with diabetic kidney disease compared with control subjects. The loci identified here confirm known pathways and highlight novel pathways influencing albuminuria.
Pubmed
Web of science
Open Access
Yes
Create date
21/12/2015 17:40
Last modification date
09/08/2024 14:51