GPT and metabolic dysfunction-associated steatohepatitis: Furthermore, NASH and HCC patients possessed elevated serum parameters of liver injury such as alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (AP), gamma-glutamyltransferase (γGT), glutamate dehydrogenase (GLDH), and lactate dehydrogenase (LDH).