Tumor necrosis factor‐α and transforming growth factor‐β reflect severity of liver damage in primary biliary cirrhosis

Abstract
Background and Aims The pathogenesis of primary biliary cirrhosis (PBC) is unknown. The role of cytokines such as tumor necrosis factor‐α (TNF‐α) and transforming growth factor‐β (ΤGF‐β), and the eff...