Figure 5. ROS inhibition blocked the cell death and the activation of apoptosis pathways. (A) Cell viabilities of PANC-1 cells and (B) the quantification of PARP cleavage ratio (cleaved PARP/full length PARP) after the triple treatment with or without 1 h NAC pretreatment. GAPDH was used as loading control. Data were presented as the mean ± standard deviation in triplicate. **P < 0.01, ***P < 0.001, comparison between indicated groups.