Zhang H et al. 2017. Magnolol Attenuates Concanavalin A-induced Hepatic Fibrosis, Inhibits CD4+ T Helper 17 (Th17) Cell Differentiation and Suppresses Hepatic Stellate Cell Activation: Blockade of Smad3/Smad4 Signalling. Basic & Clinical Pharmacology & Toxicology. The gene discussed is SMAD4; the disease is Hepatic fibrosis.