Uterus (mouse, H & E ×400). Representative histological features of the uterus from CCRB, NARB, oestradiol and distilled water treated mice. (A) Mice administered water showed immature quiescent uterus with developing lumen and glands (UG) while oestradiol treated mice (B) showed distorted luminal epithelium. CCRB treated mice 1 mg/kg (C), 10 mg/kg (D) and 100 mg/kg (E) showed congestion of the lumen (UL). NARB treated mice 1 mg/kg (F), 10 mg/kg (G) and 100 mg/kg (H) showed largely normal quiescent uterus. Scale represents 20 μm.