FGF2 and pulmonary fibrosis: In addition, it has been reported in the literatures that astragaloside IV can inhibit the expression of CD34 and basic fibroblast growth factor in lung tissues of rats with pulmonary fibrosis, and the intervention effect is positively correlated with the dose.[44,45] The main component of Dazhu Hongjingtian injection is Rhodiola macrophylla (Dazhu Hongjingtian), which can also promote blood circulation to remove blood stasis.