Author
Listed:
- Shu Ran
- Yong-Jun Liu
- Lei Zhang
- Yufang Pei
- Tie-Lin Yang
- Rong Hai
- Ying-Ying Han
- Yong Lin
- Qing Tian
- Hong-Wen Deng
Abstract
Skeletal muscle is a major component of the human body. Age-related loss of muscle mass and function contributes to some public health problems such as sarcopenia and osteoporosis. Skeletal muscle, mainly composed of appendicular lean mass (ALM), is a heritable trait. Copy number variation (CNV) is a common type of human genome variant which may play an important role in the etiology of many human diseases. In this study, we performed genome-wide association analyses of CNV for ALM in 2,286 Caucasian subjects. We then replicated the major findings in 1,627 Chinese subjects. Two CNVs, CNV1191 and CNV2580, were detected to be associated with ALM (p = 2.26×10−2 and 3.34×10−3, respectively). In the Chinese replication sample, the two CNVs achieved p-values of 3.26×10−2 and 0.107, respectively. CNV1191 covers a gene, GTPase of the immunity-associated protein family (GIMAP1), which is important for skeletal muscle cell survival/death in humans. CNV2580 is located in the Serine hydrolase-like protein (SERHL) gene, which plays an important role in normal peroxisome function and skeletal muscle growth in response to mechanical stimuli. In summary, our study suggested two novel CNVs and the related genes that may contribute to variation in ALM.
Suggested Citation
Shu Ran & Yong-Jun Liu & Lei Zhang & Yufang Pei & Tie-Lin Yang & Rong Hai & Ying-Ying Han & Yong Lin & Qing Tian & Hong-Wen Deng, 2014.
"Genome-Wide Association Study Identified Copy Number Variants Important for Appendicular Lean Mass,"
PLOS ONE, Public Library of Science, vol. 9(3), pages 1-7, March.
Handle:
RePEc:plo:pone00:0089776
DOI: 10.1371/journal.pone.0089776
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