Figure 1. Intermittent hypoxia induces H9c2 cell injury. H9c2 cells were cultured under IH. (A) Cell viability were evaluated by CCK8 assay. (B, C) Cell apoptosis-related proteins were tested by western blotting assays. IH: Intermittent hypoxia. Data are represented as the mean ± SD from three independent experiments. * p < 0.05, ** p < 0.01.