Journal article 1191 views
Association of the PGC-1α rs8192678 variant with microalbuminuria in subjects with type 2 diabetes mellitus
Sarah Prior 
,
A Clark,
Danielle Jones,
Steve Bain,
Steve Hurel,
Steve Humphries,
Jeffrey Stephens
,
A Clark,
Danielle Jones,
Steve Bain,
Steve Hurel,
Steve Humphries,
Jeffrey Stephens
Disease Markers
Swansea University Authors:
Sarah Prior , Danielle Jones
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DOI (Published version): 10.3233/DMA-2012-0894
Abstract
PPAR-γ co-activator-1α (PGC-1α) is a tissue-specific transcriptional co-activator involved in the regulation of antioxidant enzymes. The A-allele of the rs8192678 PGC-1 α} (G>A) gene variant has previously been associated with nephropathy in Korean and Indian-Asian type 2 diabetes mellitus (T2DM)...
| Published in: | Disease Markers |
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| Published: |
2012
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa10736 |
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| Abstract: |
PPAR-γ co-activator-1α (PGC-1α) is a tissue-specific transcriptional co-activator involved in the regulation of antioxidant enzymes. The A-allele of the rs8192678 PGC-1 α} (G>A) gene variant has previously been associated with nephropathy in Korean and Indian-Asian type 2 diabetes mellitus (T2DM) samples. Our aim was to examine the association between this variant and urine albumin exccretion in European subjects with T2DM. Genotyping was performed on 583 European subjects with T2DM and examined in relation to urinary albumin, plasma oxidized-LDL and small dense-LDL percentage. We observed a significant association between genotype (GG/GA/AA) and urinary albumin (normoalbuminuria v micro/macroalbuminuria: 48.6/39.7/11.7% v 38.2/51.2/10.5%, p=0.02; for GG v GA/AA, p=0.01). The odds ratio for micro/macroalbuminuria in GA and AA subjects relative to GG were 1.70 [1.15–2.50], p=0.008 and 1.20 [0.66–2.16], p=0.56 respectively (for GA/AA v GG: 1.58 [95% CI: 1.09–2.27], p=0.02). There was a significant association between the A allele and a higher percentage of small dense-LDL particles (GG v GA v AA: 70.8 [58.01–81.06] % v 72.8 [56.18–81.19] % v 78.9 [67.16–85.33] %, p=0.03). In European subjects with T2DM the GA relative to the GG genotype is associated with a 70% increase in the risk of micro/microalbuminuria. Furthermore, homozygosity for the A-allele is also associated with a preponderance of small dense-LDL particles. |
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| Keywords: |
PGC-1α, type 2 diabetes mellitus, microalbuminuria, oxidative stress |
| College: |
Faculty of Medicine, Health and Life Sciences |