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Endocrine. 2013 Feb;43(1):120-6. doi: 10.1007/s12020-012-9736-6. Epub 2012 Jul 6.

No conclusive evidence for association of polymorphisms in the adiponectin receptor 1 gene, AdipoR1, with common obesity.

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1
Department of Medical Genetics, University of Antwerp, Universiteitsplein 1, 2610, Antwerp, Belgium.

Abstract

AdipoR1 is one of the adiponectin receptors which are important for adiponectin signaling. Because adiponectin is a candidate gene for common obesity, it is also hypothesized that variations in AdipoR1 may be involved in the development of complex obesity. Therefore, we designed an association study for the AdipoR1 gene. We performed a case-control association study including 1,021 obese subjects (mean age 42 ± 12 years; mean BMI 38.2 ± 6.2 kg/m²) and 226 lean, healthy individuals (mean age 36 ± 7 years; mean BMI 22.1 ± 1.7 kg/m²). Nine tagSNPs were selected to cover the entire AdipoR1 gene and surrounding 7 kb region (based on HapMap data). TagSNPs were genotyped using AcycloPrime-Fluorescence Polarization (FP) SNP Detection kits and TaqMan Pre-Designed SNP Genotyping assays according to manufacturer's protocols. We found that the rs1075399 non-reference allele decreases obesity risk by 45 % in men only [odds ratio (OR) = 0.55, 95 % CI 0.35-0.87, nominal P = 0.010]. However, after Bonferroni correction for multiple testing, this association is lost. None of the other tagSNPs were associated with obesity when studying the entire population, nor when looking at men and women separately. Quantitative analysis of the effect of each SNP on height, weight, and BMI revealed that none of the tagSNPs are associated with weight or BMI. We report here that we found no decisive evidence for association between AdipoR1 tagSNPs and complex obesity in our Belgian Caucasian population.

PMID:
22767440
DOI:
10.1007/s12020-012-9736-6
[Indexed for MEDLINE]
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