title: Association of a common haplotype of hepatocyte nuclear factor 1alpha with type 2 diabetes in Chinese population.
abstract: OBJECTIVE
  To analyze the association of variants of hepatocyte nuclear factor-1alpha (HNF-1alpha) gene with type 2 diabetes in Chinese population.
  
  
  METHODS
  In 152 unrelated type 2 diabetes patients and 93 unrelated controls, eleven single nucleotide polymorphisms (SNPs) were identified and genotyped. Statistical analyses were performed to investigate whether these SNPs were associated with diabetes status in our samples.
  
  
  RESULTS
  In the individual SNP study, no SNP differed significantly in frequency between type 2 diabetes patients and controls. In the haplotype analysis, two haplotype blocks were identified. In haplotype block 1, no evidence was found between common HNF-1alpha haplotypes and type 2 diabetes. However, in haplotype block 2, a common haplotype GCGC formed by four tagging SNPs (tSNPs) was found to be associated with decreased risk of type 2 diabetes (odds ratio [OR] 0.6011, 95% confidence interval [CI] 0.4138-0.8732, P = 0.0073, empirical P = 0.0511, permutation test). A similar trend was also observed in the diplotype analysis, indicating that the increasing copy number of the haplotype GCGC was associated with the decreased frequency of diabetes (P = 0.0193).
  
  
  CONCLUSIONS
  The results of this study provide evidence that the haplotype of HNF-1alpha decreases the risk of type 2 diabetes in Chinese individuals.
authors: Shanghai Diabetes Institute, Department of Endocrinology and Metabolism, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai, China. wcr601@hotmail.com
authors: Cong-Rong
authors: CR
authors: Wang
authors: Cheng
authors: C
authors: Hu
authors: Rong
authors: R
authors: Zhang
authors: Qi-Chen
authors: QC
authors: Fang
authors: Xiao-Jing
authors: XJ
authors: Ma
authors: Wei-Ping
authors: WP
authors: Jia
authors: Kun-San
authors: KS
authors: Xiang
mesh_terms: D000328:Adult; D000368:Aged; D016022:Case-Control Studies; D002681:China / Q000453:epidemiology; D003924:Diabetes Mellitus, Type 2 / Q000453:epidemiology / Q000235:genetics*; D020022:Genetic Predisposition to Disease; D006239:Haplotypes; D051538:Hepatocyte Nuclear Factor 1-alpha / Q000235:genetics*; D006801:Humans; D008875:Middle Aged; D020641:Polymorphism, Single Nucleotide
chemical_list: D051538:Hepatocyte Nuclear Factor 1-alpha