The MTHFR gene polymorphism is associated with lean body mass but not fat body mass

Human Genetics
Xiaogang LiuHong-Wen Deng

Abstract

Along with aging, human body composition undergoes notable changes and may incur sarcopenia, obesity or osteoporosis. Sarcopenia is related to a wide series of human health problems and can be largely characterized by loss of lean body mass (LBM). Studies have showed relevance of methylenetetrahydrofolate reductase (MTHFR) with variation in LBM and fat body mass (FBM). To test if polymorphism of the MTHFR gene is underlying the pathology of sarcopenia and obesity, we concurrently tested five single nucleotide polymorphisms (SNPs) of the MTHFR gene for association with LBM, FBM and body mass index (BMI) in 405 Caucasian nuclear families comprising 1,873 individuals. After correction for multiple testing, we detected significant associations for LBM with rs2066470 (P = 0.0006), rs4846048 (P = 0.0007) and with rs3737964 (P = 0.004), as well as for BMI with rs4846048 (P = 0.009). Polymorphism of rs2066470 explains 3.67% of LBM variation in this sample. The association between BMI and rs4846048 diminished after adjusting for LBM, suggesting that the association between BMI and rs4846048 is largely due to LBM instead of the fat component. In concert, no significant associations were identified for FBM with any of the studied SNPs. Th...Continue Reading

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Citations

Jun 28, 2011·Human Genetics·Li-Jun TanHong-Wen Deng
Aug 11, 2010·International Journal of Obesity : Journal of the International Association for the Study of Obesity·W-J XiaoZ-L Zhang
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Jan 29, 2021·Frontiers in Genetics·Felicita UrziElena Buzan

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