Effect of L-carnitine on the LDH release of HL7702 cells. Cells were treated with or without L-carnitine prior to H2O2 challenge (300 μM, 12 h). LDH release represents the percentage of LDH in the culture medium relative to the total LDH. Each value represents the mean of three replicates. #P < 0.01 vs. control; *P < 0.05, **P < 0.01 vs. H2O2 alone; ΔP < 0.05 vs. 0.1 mM L-carnitine; ▲P < 0.05 vs. 0.5 mM L-carnitine.