HLA-DPB1, DQB1 genes and their correlation with autoantibodies in type 1 diabetes mellitus / 中华内分泌代谢杂志

Objective To investigate HLA-DPB1, DQB1 gene alleles and their correlation with autoantibodies in type 1 diabetes mellitus. Methods Sequence-based typing was used to determine the alleles of HLA-DPB1 and -DQB1 in 68 patients with type 1 diabetes and 50 healthy controls. Autoantibodies 〔glutamic acid decarboxylase antibody (GADA), islet cell antibody (ICA), insulin autoantibody (IAA)〕were detected by ELISA. Results Compared with the controls, the frequencies of DPB1*0402 and DQB1*0301 were significantly lower in type 1 diabetics (11.76%, 5.15% vs 30.00%, 22,00% respectively, P