Fig. 2

Quercetin protects aortic endothelial cells from ox-LDL-induced cell cycle arrest and apoptosis. A Representative flow cytometry for cell cycle in HAECs with treatment of 50 μg/mL ox-LDL in combination with 0, 0.5, 1 and 3 μM quercetin (Que). B, C Analysis of G0/G1 phase and S phase percentages in the above HAECs. D Representative flow cytometry for apoptosis in HAECs with 50 μg/mL ox-LDL treatment in combination with 0, 0.5, 1 and 3 μM Que. E Quantification of apoptotic HAECs. F Representative white light photographs of HAECs administrated with 50 μg/mL ox-LDL combined with 0, 0.5, 1 and 3 μM Que. Scale bar, 100 μm. G CCK-8 for cell viability of the above HAECs. ns, not significant; *p < 0.05; ***p < 0.001; ****p < 0.0001