Fig. 3.

Effects of JC1-JC6 on the extent of intracellular ROS and the activities of CAT and SOD. The SK-N-MC cells were incubated without or with JC1-JC6 (20 μM) for 3 h before addition of H₂O₂. Intracellular ROS was measured using DCFH-DA (A). Restoring effect of JC1-JC6 on SOD and CAT activities in H₂O₂-treated SK-N-MC cells (B). Catechin was used as the positive control. Results are means ± SD of three measurements. ^*Significantly different from control cells (P<0.05); ^#Significantly different from H₂O₂-treated cells (P<0.05).