The intestinal wall thickness and the villi length of the regenerated intestine decreased after 11 days of exposure to different levels of TBBPA. (A–C) The effects of TBBPA exposure on the regenerated intestine were examined at concentrations of 0 nmol/L (A), 3 nmol/L (B), and 5 nmol/L (C) using hematoxylin-eosin (HE) staining. (D) The intestinal wall thickness of the regenerated intestines was measured following exposure to TBBPA at concentrations of 0 nmol/L, 3 nmol/L, and 5 nmol/L. (E) The villi length of the regenerated intestines was measured following exposure to TBBPA at concentrations of 0 nmol/L, 3 nmol/L, and 5 nmol/L.