GPT and steatosis: Furthermore, diet-induced steatosis was corroborated by the activity of liver enzymes alanine aminotransferase (ALT) and aspartate aminotransferase (AST), whose activities were greatly increased (84.83 U/L and 161.30 U/L, respectively), as well as by the increase in plasma triglycerides (189 mg/dL) and the high level of MDA in urine (19 nmol MDA/mg creatinine) (data not shown).