For pulmonary fibrosis, Mai Men Dong Decoction-2 reduced epithelial–mesenchymal transition (EMT) by activation of TGF-β (Liu et al., 2016); Scutellariae Radix for EMT may be associated with its active component, baicalin, which inhibited extracellular regulated protein kinases (ERK)/Glycogen Synthase Kinase 3β(GSK3β) (Lu et al., 2017). This evidence concerns the gene TGFB1 and pulmonary fibrosis.