Effect of L-carnitine on H
-induced MDA formation in HL7702 cells. Cells were treated with or without L-carnitine prior to H2O2 challenge (300 μM, 12 h). 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.