Abstract
Materials and Methods: Fifty-four adult male albino rats randomized into nine groups (six rats in each group) were treated orally with EEIA (100, 200, and 400 mg/kg) daily for 7 days and CPT (6 mg/kg) intraperitoneally on day 5 and 7, respectively. On day 8, the rats were anesthetized; blood samples were collected and evaluated for plasma liver function markers. Liver samples were harvested and evaluated for biochemical parameters and histology.
Statistical Analysis: Data are presented as mean ± standard error of the mean (SEM). Statistical analysis was performed using one-way analysis of variance (ANOVA) and Tukey’s test.
Results: CPT-induced hepatotoxicity was characterized by significant (P < 0.001) elevations in liver and plasma levels of aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase, lactate dehydrogenase, gamma-glutamyl transferase, total bilirubin, and conjugated bilirubin when compared to control. The alterations in liver redox status of CPT-treated rats were marked by significant (P < 0.001) decreases in superoxide dismutase, catalase, glutathione, and glutathione peroxidase levels with significant (P < 0.001) increases in malondialdehyde levels when compared to control. The liver of CPT-treated rat was characterized by hepatocyte necrosis. The hepatotoxic effect of CPT was significantly abrogated in a dose-dependent fashion in rats pretreated with EEIA 100 mg/kg (P < 0.05), 200 mg/kg (P < 0.01), and 400 mg/kg (P < 0.001) when compared to CPT-treated rats.
Conclusion: EEIA has potential as treatment for CPT-induced hepatotoxicity.