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  • Title: Association between accumulation of visceral fat and the combination of β3 adrenergic receptor Trp64Arg, β2 adrenergic receptor Arg16Gly and uncoupling protein 1 -3826A>G polymorphisms detected by Smart Amplification Process 2.
    Author: Tsunekawa K, Yanagawa Y, Aoki T, Morimura T, Araki O, Ogiwara T, Kawai Y, Mitani Y, Lezhava A, Yanagawa M, Hayashizaki Y, Murakami M.
    Journal: Endocr J; 2011; 58(12):1079-86. PubMed ID: 21959333.
    Abstract:
    β2 and β3 adrenergic receptors (β2AR, β3AR) and uncoupling protein 1 (UCP1) have been considered as candidate genes for obesity. Although each polymorphism of β3AR Trp64Arg, β2AR Arg16Gly and UCP1 -3826A>G is known to be associated with obesity, the interaction among these polymorphisms is not fully understood. We analyzed β3AR Trp64Arg, β2AR Arg16Gly and UCP1 -3826A>G polymorphisms by the Smart Amplification Process 2 in 222 Japanese subjects without the medication of hypertension, dyslipidemia or diabetes, and investigated the association between the physical and metabolic characteristics and the combination of these polymorphisms. In analysis of the genotypes combination, only the carriers of both β2AR Arg/Arg and UCP1 G/G genotypes had significantly higher waist to hip ratio (p=0.014). In analysis of the alleles combination, a significant difference was observed in waist to hip ratio among the groups stratified by the carrying number of the alleles of β3AR Arg, β2AR Arg and UCP1 G (p=0.026), and the waist to hip ratio was significantly higher in the carriers of four and five risk alleles than in the carriers from zero to three risk alleles (p=0.005). The present study demonstrated the interaction among β3AR Trp64Arg, β2AR Arg16Gly and UCP1 -3826A>G for the accumulation of visceral fat.
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