GPT and diabetes mellitus: The biochemical data of the diabetic patients, including hemoglobin A1c, duration of diabetes, total cholesterol (T-CHO), triglyceride, low-density lipoprotein (LDL) cholesterol, high-density lipoprotein (HDL) cholesterol, glutamic-pyruvic transaminase (GPT), and creatinine, are also presented in Table 1.