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The Same Chromosome 9p21.3 Locus Is Associated With Type 2 Diabetes and Coronary Artery Disease in a Chinese Han Population

  1. Qing K. Wang2,3
  1. 1Institute of Cardiology, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
  2. 2Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, China
  3. 3Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, China
  4. 4Department of Pharmacology, Harbin Medical University, Harbin, China
  5. 5Department of Cardiology, the First Affiliated Hospital of Harbin Medical University, Harbin, China
  6. 6Department of Cardiology, Jining Medical College Affiliated Hospital, Jining, China
  7. 7Renmin Hospital of Wuhan University, Wuhan, China
  8. 8Wuhan No.1 Hospital, Wuhan, China
  9. 9Research Institute of the National Population and Family Planning Commission, Beijing, China
  1. Corresponding authors: Xin Tu, xtu{at}mail.hust.edu.cn; Yuhua Liao, liaoyh27{at}163.com; or Qing K. Wang, qkwang{at}mail.hust.edu.cn.
  1. X.C., L.S., and S.N. contributed equally to this work.

Abstract

OBJECTIVE Recent genome-wide association studies (GWAS) revealed that a 9p21.3 locus was associated with type 2 diabetes. In this study, we carried out a large-scale case-control study in the GeneID Chinese Han population to 1) further replicate the association of 9p21.3 type 2 diabetes GWAS single nucleotide polymorphisms (SNPs) and 2) assess the association of these SNPs with coronary artery disease.

RESEARCH DESIGN AND METHODS Three SNPs (rs2383208, rs10811661, and rs10757283) were genotyped in two GeneID cohorts of 3,167 Chinese Han individuals. Case-control association design was used to determine the association of the SNPs with type 2 diabetes and coronary artery disease. Gensini scores were calculated in the coronary artery disease subjects and were tested for association with the variants. Multivariate logistic regressions were performed on association studies.

RESULTS The association between two of the three SNPs and type 2 diabetes was replicated in the GeneID population (rs2383208, P = 0.936; rs10811661-T, P = 0.02, odds ratio [OR] = 1.23; rs10757283-C, P = 0.003, OR = 1.30). The same two SNPs also contributed to the risk of coronary artery disease (CAD) (rs10811661-T, P = 0.002, OR = 1.19; rs10757283-C, P = 0.003, OR = 1.18). In addition, rs10757283 was associated with severity of coronary atherosclerosis estimated by the Gensini scoring system (risk allele C, quantitative-trait regression adjusted P = 0.002).

CONCLUSIONS For the first time to our knowledge, our results indicated that the same 9p21.3 locus, represented by SNPs rs10811661 and rs10757283, contributed to the risk of type 2 diabetes and coronary artery disease in our GeneID Chinese Han population.

Footnotes

  • Received February 6, 2010.
  • Accepted October 29, 2010.

Readers may use this article as long as the work is properly cited, the use is educational and not for profit, and the work is not altered. See http://creativecommons.org/licenses/by-nc-nd/3.0/ for details.

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