Effect of DECPR on ROS generation in HT-29 cells. (A) HT-29 cells were treated with vehicle DMSO or DECPR at 12.5 μg/mL concentration, stained with Hoechst 33342 dye (blue) for nucleus and dihydroethidium for ROS detection. (B) Representative bar chart showed significant ROS generation at 6.25 to 50 μg/mL concentrations after 24 h treatment with DECPR. The data represent the means ± SEM of three independent experiments. *P < 0.05 compared with the untreated group.