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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Evidence of an association between genetic variation of the coactivator PGC-1beta and obesity.

BACKGROUND: Peroxisome proliferator activated receptor-gamma coactivator-1beta (PGC-1beta) is a recently identified homologue of the tissue specific coactivator PGC-1alpha, a coactivator of transcription factors such as the peroxisome proliferators activated receptors and nuclear respiratory factors. PGC-1alpha is involved in adipogenesis, mitochondrial biogenesis, fatty acid beta oxidation, and hepatic gluconeogenesis. METHODS: We studied variation in the coding region of human PPARGC1B in Danish whites and related these variations to the prevalence of obesity and type 2 diabetes in population based samples. RESULTS: Twenty nucleotide variants were identified. In a study of 525 glucose tolerant subjects, the Ala203Pro and Val279Ile variants were in almost complete linkage disequilibrium (R2 = 0.958). In a case-control study of obesity involving a total of 7790 subjects, the 203Pro allele was significantly less frequent among obese participants (p = 0.004; minor allele frequencies: normal weight subjects 8.1% (95% confidence interval: 7.5 to 8.8), overweight subjects 7.6% (7.0 to 8.3), obese subjects 6.5% (5.6 to 7.3)). In a case-control study involving 1433 patients with type 2 diabetes and 4935 glucose tolerant control subjects, none of the examined variants were associated with type 2 diabetes. CONCLUSIONS: Variation of PGC-1beta may contribute to the pathogenesis of obesity, with a widespread Ala203 allele being a risk factor for the development of this common disorder.[1]

References

  1. Evidence of an association between genetic variation of the coactivator PGC-1beta and obesity. Andersen, G., Wegner, L., Yanagisawa, K., Rose, C.S., Lin, J., Glümer, C., Drivsholm, T., Borch-Johnsen, K., Jørgensen, T., Hansen, T., Spiegelman, B.M., Pedersen, O. J. Med. Genet. (2005) [Pubmed]
 
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