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Meta-analysis of the Gly482Ser variant in PPARGC1A in type 2 diabetes and related phenotypes.
Umeå University, Faculty of Medicine, Public Health and Clinical Medicine.
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2006 (English)In: Diabetologia, Vol. 49, no 3, 501-5 p.Article in journal (Refereed) Published
Abstract [en]

AIMS/HYPOTHESIS: Peroxisome proliferator-activated receptor-gamma co-activator-1alpha (PPARGC1A) is a transcriptional co-activator with a central role in energy expenditure and glucose metabolism. Several studies have suggested that the common PPARGC1A polymorphism Gly482Ser may be associated with risk of type 2 diabetes, with conflicting results. To clarify the role of Gly482Ser in type 2 diabetes and related human metabolic phenotypes we genotyped this polymorphism in a case-control study and performed a meta-analysis of relevant published data. MATERIALS AND METHODS: Gly482Ser was genotyped in a type 2 diabetes case-control study (N=1,096) using MassArray technology. A literature search revealed publications that examined Gly482Ser for association with type 2 diabetes and related metabolic phenotypes. Meta-analysis of the current study and relevant published data was undertaken. RESULTS: In the pooled meta-analysis, including data from this study and seven published reports (3,718 cases, 4,818 controls), there was evidence of between-study heterogeneity (p<0.1). In the fixed-effects meta-analysis, the pooled odds ratio for risk of type 2 diabetes per Ser482 allele was 1.07 (95% CI 1.00-1.15, p=0.044). Elimination of one of the studies from the meta-analysis gave a summary odds ratio of 1.11 (95% CI 1.04-1.20, p=0.004), with no between-study heterogeneity (p=0.475). For quantitative metabolic traits in normoglycaemic subjects, we also found significant between-study heterogeneity. However, no significant association was observed between Gly482Ser and BMI, fasting glucose or fasting insulin. CONCLUSIONS/INTERPRETATION: This meta-analysis of data from the current and published studies supports a modest role for the Gly482Ser PPARGC1A variant in type 2 diabetes risk.

Place, publisher, year, edition, pages
2006. Vol. 49, no 3, 501-5 p.
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URN: urn:nbn:se:umu:diva-16112DOI: doi:10.1007/s00125-005-0130-2PubMedID: 16435105OAI: oai:DiVA.org:umu-16112DiVA: diva2:155785
Available from: 2007-08-17 Created: 2007-08-17 Last updated: 2011-01-11Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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