GPT and diabetes mellitus: Results showed significant decreases (p<0.05) in serum high-density lipoprotein (HDL) but significant increases (p<0.05) in blood glucose, serum low-density lipoprotein (LDL), triglyceride (TG), total cholesterol (TC) and alanine aminotransferase (ALT) activities in DM-induced rats compared to the normal control group.