Fig. 1

RSV promotes cell viability in PA-treated HUVECs. a: Cell treatment scheme for the major experiment. Cells were treated with 200 μM of PA for 16 h, and then RSV of specific concentration was added for 8 h. Cell viability was measured by CCK-8 assay and calculated from the ratio of the optical density of the experimental cells to that of the control cells (set as 100%). b: Cells were treated with 200 μM PA for different periods (14, 16, 18, 20, 22 and 24 h). c: Cells were treated with PA of different concentrations (100, 200, 300, 400 and 500 μM) for 24 h. d: Cells were treated as described in a. RSV of different concentrations (0.1, 1, 10 and 50 μM) were used. Values are expressed as means ± SD (n = 3); ^*p < 0.05, ^**p < 0.01 vs. the vehicle-treated control group; ^#p < 0.05, ^##p < 0.01 vs. PA-treated group