Fig. 3

The biliary injuries in the liver of IL-33 WT and IL-33 KO mice infected by Clonorchis sinensis. IHC staining of CK19 in all the groups of mice (A) and the sections were quantified by integral optical density using Image J software (B, n = 3–5). The values were expressed as mean ± SEM. Compared with indicated groups, **P < 0.01, ***P < 0.001; ns not significant. All data represent at least three independent experiments