Fig. 2From: Salidroside attenuates hypoxia-induced pulmonary arterial smooth muscle cell proliferation and apoptosis resistance by upregulating autophagy through the AMPK-mTOR-ULK1 pathwayAutophagy is involved in hypoxia-induced PASMC apoptosis resistance. a Images of cell apoptosis in each group as determined by the TUNEL assay. b Quantitative analysis of the cell apoptosis index by TUNEL assay. *p < 0.05 vs. the N group; and #p < 0.05 vs. the H groupBack to article page