Protective role of propolis on low and high dose furan-induced hepatotoxicity and oxidative stress in rats
Kaya, Emre | Yılmaz, Seval | Ceribasi, Songul
The aim of this study was to evaluate potential protective effects of propolis on furan-induced hepatic damage by assessing the levels of malondialdehyde (MDA) and reduced glutathione (GSH), antioxidant enzyme activities, and histopathological changes in the liver. Albino Wistar rats were divided into six groups: a control, propolis-treated (100 mg/kg b.w./day), low-dose furan-treated (furan-L group; 2 mg/kg b.w./day), high-dose furan-treated (furan-H group; 16 mg/kg b.w./day), furan-L+propolis treated, and furan-H+propolis treated group. Propolis and furan were applied by gavage; propolis for 8 days, and furan for 20 days in furan-L groups and 10 days in furan-H groups. While MDA levels were elevated in furan-treated groups, levels of GSH and activities of antioxidant enzymes decreased (p < 0.001). The levels of MDA and GSH and activities of antioxidant enzymes were normal in the furan+propolis groups, especially in the furan-L+propolis group (p < 0.001). While the aspartate transaminase, alanine transaminase, alkaline phosphatase, and lactate pdehydrogenase activities were elevated in the furan-H treated group (p < 0.05 and p < 0.001), they were unchanged in the furan-L treated group. Histopathologically, several lesions were observed in the liver tissues of the furan-treated groups, especially in the higher-dose group. It was determined that these changes were milder in both of the furan+propolis groups. The results indicate that propolis exhibits good hepatoprotective and antioxidant potential against furan-induced hepatocellular damage in rats.
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