Fig. 2.

Effect of DEPs on intracellular ROS levels. After treatment with various concentrations of DEPs (10 µg/ml, 25 µg/ml, and 50 µg/ml) for 3 h, the intracellular ROS level increased, as determined by the evaluation of the DCF fluorescence. Values represent mean±SD. All experiments were performed in triplicates, and the values reported are mean ± SD. (a: different from control group, b: different from 10 µg/ml [DEP] group, and c: different from 25 µg/ml [DEP] group, p<0.05).