Figure 1: p,p-DDE exposure does not affect cell viability and proliferation. (a) Percentage of viable cells and (b) proliferation of cells exposed to 0.019, 0.19, and 1.9 μg/mL of p,p-DDE as evaluated by MTT assay and [3H]-thymidine incorporation, respectively. Data from three independent experiments are expressed as the mean ± standard error mean (SEM). indicates differences from the control group; and indicate differences from 1.9 μg/mL of p,p-DDE at 24 h. Data were analysed using a one-way ANOVA followed by Dunnett’s post hoc or Bonferroni’s multiple comparison tests. indicates differences from the control group.