Effect of L-carnitine on intracellular ROS levels after H
exposure in HL7702 cells. Cells were treated with or without L-carnitine prior to H2O2 challenge (300 μM, 12 h). ROS levels were measured using fluorescent probe DCFH-DA. Each value represents the mean of three replicates. #P < 0.01 vs. control; **P < 0.01 vs. H2O2 alone.