Association of the 103I MC4R allele with decreased body mass in 7937 participants of two population based surveys |
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Authors: | Heid I M,Vollmert C,Hinney A,Döring A,Geller F,Löwel H,Wichmann H-E,Illig T,Hebebrand J,Kronenberg F KORA Group |
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Abstract: | Background: The melanocortin-4-receptor gene (MC4R) is part of the melanocortinergic pathway that controls energy homeostasis. In a recent meta-analysis, the MC4R V103I (rs2229616) polymorphism was shown to be associated with body weight regulation. Although no functional differences between the isoleucine comprising receptor and the wild type receptor have been detected as yet, this meta-analysis of 14 case–control studies reported a mild negative association with obesity (odds ratio (OR) 0.69, p = 0.03). However, evidence in a large population based study in a homogeneous population and a significant estimate of the change in quantitative measures of obesity is still lacking. |
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