Article
Assessment of age-related changes in heritability and IGF-1 gene effect on circulating IGF-1 levels.
Age (Dordrecht, Netherlands) - 1 Jun 2014
Franco Liran, Williams Frances M K, Trofimov Svetlana, Malkin Ida, Surdulescu Gabriela, Spector Timothy, Livshits Gregory
Abstract excerpt
It is well established that insulin-like growth factor 1 (IGF-1) circulating levels correlate with age and that heritability and influence of IGF-1 gene variation on IGF-1 levels also well-known. However, the influence of age on the genetic factors determining IGF-1 levels is not clear. In this study, we compared heritability estimates between younger (<52 years) and older (>52 years) twins and tested: (a)...
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