Inhibition of TH2 cytokine secretion by Didox and Trimidox. The levels in pg/ml of IL-4, IL-13 and IL-10 (*p < 0.05, ** p < 0.001) were determined using the Searchlight procedure. (A) B10.D2 mice; (B) C57BL6 mice. NC: Normal control, AC: Activated control. The values shown (mean ± SD) represent data obtained in triplicate from two independent experiments. * p < 0.05, ** p < 0.001 indicates a significant difference compared to activated control (AC), ANOVA + the Bonferroni test; n = 3.