MMP13 and Hepatic fibrosis: Atractylodes macrocephaia was found: to recover the elevated levels of hyaluronic acid, laminin, type IV collagen, type III procollagen, and TGF‐β1; to suppress procollagen I, collagen III, and TIMP‐1 expression; and to improve the TIMP‐1/MMP‐13 ratio in rat liver fibrosis.13