Figure 2.

Effect of rosamultin on H9c2 cell viability after being subjected to H₂O₂-induced oxidative damage. H9c2 cells were preincubated in the presence and absence of rosamultin (10⁻¹³–10⁻⁹ M) for 24 h and then stimulated further with 200 μM of H₂O₂ for an additional 3 h. After MTT was added, the violet crystals were dissolved with DMSO. Absorbance was measured with a microplate reader at 490 nm. Data are mean ± S.E.M. (n = 6). ^##P < 0.01 versus the control group and ^∗∗P < 0.01 versus the model group.