GPT and diabetes mellitus: This study found that patients in T2DM with NAFLD group were younger, shorter diabetes course,and the values of BMI,waist circumference, ALT, AST,GGT,FBG, TG,TC, HOMA-IR (CP) and HBA1C values were all higher in T2DM with NAFLD group,suggesting that T2DM with NAFLD patients were more prone to metabolic abnormalities and IR.