GPT and diabetes mellitus: There were no significant differences in gender composition, age, diabetes duration, systolic blood pressure (SBP), diastolic blood pressure (DBP), alanine aminotransferase (ALT), aspartate aminotransferase AST, urea nitrogen (UN), creatinine (Cr), total cholesterol (TC), triglycerides (TG), high-density lipoprotein cholesterol (HDL), low-density lipoprotein cholesterol (LDL), HbA1c among three groups (respectively, p > 0.05) (Table 1).