These effects were accompanied by improvement of markers concerning the liver function (alanine transaminase (ALT) and aspartate transaminase (AST)) and urea levels and intensification of the effects of metformin on cholesterol, triglycerides and low-density lipoprotein (LDL) and high-density lipoprotein (HDL) cholesterol, together with diabetes amelioration. Here, GPT is linked to diabetes mellitus.