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Genome-wide association study suggested copy number variation may be associated with body mass index in the Chinese population.

Abstract
Obesity is a major public health problem characterized with high body mass index (BMI). Copy number variations (CNVs) have been identified to be associated with complex human diseases. The effect of CNVs on obesity is unknown. In this study, we explored the association of CNVs with BMI in 597 Chinese Han subjects using Affymetrix GeneChip Human Mapping 500K Array Set. We found that one CNV at 10q11.22 (from 46.36 Mb to 46.56 Mb) was associated with BMI (the raw P=0.011). The CNV contributed 1.6% of BMI variation, and it covered one important obesity gene-pancreatic polypeptide receptor 1(PPYR1). It was reported that PPYR1 was a key regulator of energy homeostasis. Our findings suggested that CNV might be potentially important for the BMI variation. In addition, our study suggested that CNV might be used as a genetic marker to locate genes associated with BMI in Chinese population.
AuthorsBao-Yong Sha, Tie-Lin Yang, Lan-Juan Zhao, Xiang-Ding Chen, Yan Guo, Yuan Chen, Feng Pan, Zhi-Xin Zhang, Shan-Shan Dong, Xiang-Hong Xu, Hong-Wen Deng
JournalJournal of human genetics (J Hum Genet) Vol. 54 Issue 4 Pg. 199-202 (Apr 2009) ISSN: 1435-232X [Electronic] Japan
PMID19229253 (Publication Type: Journal Article, Research Support, N.I.H., Extramural, Research Support, Non-U.S. Gov't)
Topics
  • Aged
  • Asian Continental Ancestry Group (genetics)
  • Body Mass Index
  • China
  • Chromosomes, Human, Pair 10 (genetics)
  • DNA Copy Number Variations (genetics)
  • Female
  • Genome-Wide Association Study
  • Humans
  • Male

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