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Hum Mol Genet. 2010 May 1;19(9):1846-55. doi: 10.1093/hmg/ddq056. Epub 2010 Feb 17.

Genome-wide association study identifies polymorphisms in LEPR as determinants of plasma soluble leptin receptor levels.

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  • 1Department of Nutrition, Harvard School of Public Health, 655 Huntington Avenue, Boston, MA 02115,USA.

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  • Hum Mol Genet. 2011 Feb 1;20(3):629.

Abstract

Plasma soluble leptin receptor (sOB-R) levels were inversely associated with diabetes risk factors, including adiposity and insulin resistance, and highly correlated with the expression levels of leptin receptor, which is ubiquitously expressed in most tissues. We conducted a genome-wide association study of sOB-R in 1504 women of European ancestry from the Nurses' Health Study. The initial scan yielded 26 single nucleotide polymorphisms (SNPs) significantly associated with sOB-R levels (P < 5 x 10(-8)); all mapping to the leptin receptor gene (LEPR). Analysis of imputed genotypes on autosomal chromosomes revealed an additional 106 SNPs in and adjacent to this gene that reached genome-wide significance level. Of these 132 SNPs (including two non-synonymous SNPs, rs1137100 and rs1137101), rs2767485, rs1751492 and rs4655555 remained associated with sOB-R levels at the 0.05 level (P = 9.1 x 10(-9), 0.0105 and 0.0267, respectively) after adjustment for other univariately associated SNPs in a forward selection procedure. Significant associations with these SNPs were replicated in an independent sample of young males (n = 875) residing in Cyprus (P < 1 x 10(-4)). These data provide novel evidence revealing the role of polymorphisms in LEPR in modulating plasma levels of sOB-R and may further our understanding of the complex relationships among leptin, leptin receptor and diabetes-related traits.

PMID:
20167575
[PubMed - indexed for MEDLINE]
PMCID:
PMC2850621
Free PMC Article

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