“…The aim of the short communication is to summarize knowledge regarding the role of galectin-3 in risk stratification of PAH patients. that Gal-3 was up-regulated in adventitia of pulmonary arteries of hypoxia-induced PAH and it regulated the proliferation, differentiation, and accumulation of extracellular matrix by synthesis of collagen and other fibrotic components (Luo, H. et al, 2017). Gal-3 exhibited pro-fibrotic effects interacting of platelet-derived growth factor (Guo, S., & Feng, Z., 2015), transforming growth factor-beta-1 (TGF-β1), matrix metalloproteinase-9 (MMP-9) (Wang, X. et al, 2017) and NADPH oxidase 4 (He, J. et al, 2017a).…”