GPT and hepatocellular carcinoma: To investigate whether the change in CYP39A1 will affect liver function and other serum biochemical indices, the serum biochemical indices of HCC patients, including alanine aminotransferase (ALT), aspartate aminotransferase (AST), total bile acid (TBA), total bilirubin (TBIL), direct bilirubin (DBIL), and total cholesterol (TCh), were detected.