Zhu et al. (Zhu et al., 2020) found that STS inhibits the expression of type I and type III collagen, downregulates hydroxyproline levels, reduces ROS and MDA levels, and protects cellular lipids from peroxidation in the alveolar space of rats with SiO2-induced pulmonary fibrosis, thereby reducing the degree of pulmonary fibrosis. Here, SGCG is linked to pulmonary fibrosis.