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Effect of PSO on H2O2-induced reactive oxygen species (ROS) generation in H9c2 cells. The cells were pretreated (for 24 hr) with different concentrations of PSO, before exposure (1 hr) to 200 𝜇M of H2O2. Data are expressed as mean ± SEM of three separate experiments. ### p<0.001 vs control, and **p<0.001 and ***p<0.001 vs H2O2.
