Antioxidant and Apoptotic Effect of Edaravone on Cisplatin-Induced Brain Injury in Rats.

PURPOSE: This study aims to investigate the effect of edaravone in preventing cisplatin-induced brain damage.

METHODS: Forty female Wistar albino rats were included in the study. 4 groups were created. In group 1 (control group) (n=10), neither any drugs were given nor anything was performed. Group 2 (cisplatin group) (n=10), single dose 7.5 mg/kg cisplatin was given. In group 3 (edaravone group) (n=10), single dose 1 mg/kg edaravone was administered. Group 4 (cisplatin+ edaravone group) (n=10), single dose 7.5 mg/kg cisplatin and 1 mg/kg edaravone were given. Brain tissue was removed in all rats after 3 days. Blood samples taken from heart tissue were examined for malondialdehyde (MDA) and nitric oxide (NO) levels. Brain tissue was evaluated for damage with p53, GFAP and Ki 67.

RESULTS: Edaravone reduced cisplatin-induced brain damage. MDA and NO levels in the cisplatin group were significantly higher than the other groups (p less than 0.05). Likewise, tissue damage in the cisplatin group was significantly higher than in the other groups (p less than 0.05). The immunohistochemical staining which was done by using p53, GFAP and Ki 67 was shown that tissue damage was higher in cisplatin group than cisplatin+ edaravone group and this difference was found to be statistically significant (p less than 0.05).

CONCLUSION: The findings of our study suggest that edaravone therapy may be effective in the prevention and treatment of cisplatin-induced brain injury.