TNF and Hepatic fibrosis: The serum aminotransferase (ALT and AST), alkaline phosphatase (ALP), bilirubin (TBIL and DBIL), bile acid, inflammatory cytokines (IL-6, IL-1β, TNF-α) and liver fibrosis indicator (HA, LN, PC-III and IV-C) concentrations were measured by ELISA kits.