Figure 1. IH inhibits cell viability in HUVECs. (A) Cell viability by a Cell Counting Kit-8. (B, C) Western blotting assays for Bcl-2, Bax, and Caspase-3 protein levels. β-Actin was served as internal control. IH: intermittent hypoxia; n = 3. (Data are presented as the mean ± SD of three independent experiments. *P < 0.05, **P < 0.01, and ***P < 0.001).