title: [Study on the association between the polymorphism of HLA-DQA1 alleles and type 2 diabetes in Yunnan Han nationality].
abstract: OBJECTIVE
  To investigate the association between the polymorphism of HLA-DQA1 alleles and type 2 diabetes mellitus in Yunnan Hans.
  
  
  METHODS
  Polymerase chain reaction-sequence specific primers(PCR-SSP) genotyping method was conducted in 108 Han patients with type 2 diabetes and 56 ethnically matched controls from the same area of Yunnan Province.
  
  
  RESULTS
  HLA-DQA1*0301(RR=3.092, P<0.01) and DQA1*0501 (RR=3.257, P<0.05) allelic frequencies in type 2 diabetic patients were significantly higher than those in non-diabetic control subjects respectively. HLA-DQA1*0401 (RR=0.371, P<0.01) allelic frequencies in patients were significantly decreased, compared with controls; HLA-DQA1*0302 (RR=3.356, P<0.01) allelic frequencies in patients with type 2 diabetic nephropathy were significantly increased.
  
  
  CONCLUSIONS
  HLA-DQA1*0301 and DQA1*0501 are susceptible genes of type 2 diabetes in Yunnan Han nationality; in reverse, HLA-DQA1*0401 is a resistant gene. HLA-DQA1*0302 is a susceptible gene of type 2 diabetic nephropathy.
authors.affiliation: The Second Affiliated Hospital of Kunming Medical College, Kunming, Yunnan, 650101 PR China.
authors.forename: Hong-ying
authors.initials: HY
authors.lastname: Yang
authors.forename: Wen-lin
authors.initials: WL
authors.lastname: Tai
authors.forename: Hui-yun
authors.initials: HY
authors.lastname: Yuan
authors.forename: Mian
authors.initials: M
authors.lastname: Xu
authors.forename: Jiang
authors.initials: J
authors.lastname: Li
authors.forename: Chun-feng
authors.initials: CF
authors.lastname: Ren
authors.forename: Juan
authors.initials: J
authors.lastname: Du
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000483:Alleles; D002681:China / Q000208:ethnology; D003924:Diabetes Mellitus, Type 2 / Q000235:genetics*; D005260:Female; D006683:HLA-DQ Antigens / Q000235:genetics*; D059848:HLA-DQ alpha-Chains; D006801:Humans; D008297:Male; D008875:Middle Aged; D011110:Polymorphism, Genetic
chemical_list: D006683:HLA-DQ Antigens; D059848:HLA-DQ alpha-Chains; C069050:HLA-DQA1 antigen