Chemopreventive Efficacy of Thymoquinone in Chemically Induced Urinary Bladder Carcinogenesis in Rat

Figure 3

Macroscopic presentation of the bladder urothelium of the representative animals at week 12. All bladders of the negative control (NC) group reveal a normal appearance. Animals from the positive control (PC) group show a higher number of lesions (shown by the arrows) in comparison to the PN-25 and PN-50 groups, in which their animals were given 25 mg/kg and 50 mg/kg thymoquinone (TQ), respectively.