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Figure 1 Protective effect of PDTC on cultured HLE B‐3 cells against H2O2‐induced cytotoxicity determined by LDH cytotoxicity assay. Cells were pretreated with 100 μM of PDTC for 2 hours before being exposed to different concentrations of H2O2 for 6 hours or were treated only with H2O2 for 6 hours without any pretreatment. *p<0.01 versus the same concentration of H2O2 exposure without pretreatment (mean ± SD, n = 8).
