Abstract
Chemotherapy is the main approach for the treatment of cancer; however, it often causes unpleasant oxidative damages. Therefore, the development of an effective alternative/complementary therapy with improved tumor suppression efficiency and lower adverse effects is highly required. Recently, it has been shown that Cyrtopodion scabrum extract (CsE) is an effective and selective tumor suppressor medicine. The present study investigated the antioxidant activity of Cyrtopodion scabrum homogenate (CsH) and CsE and their effects on attenuating 5-fluorouracil (5-FU)-induced liver dysfunction in rats. A total of 60 male rats (weight: 200-220 g) were divided into six groups and treated for 14 days. The control (group I) and 5-FU (group II) groups received distilled water and 5-FU, respectively. The other four groups were orally administered with CsE, CsH, CsE+5-FU, and CsH+5-FU (groups III to VI), respectively by gavages based on a daily schedule. The 5-FU-induced oxidative damage was evaluated by changes in the weight and food and water intake during the treatment and antioxidant parameters in the liver and serum of the treated rats. The obtained data indicated that the administration of CsH and CsE significantly improved liver function and defense system of antioxidants by attenuating the levels or activities of malondialdehyde, superoxide anion, aspartate aminotransferase, alanine aminotransferase, and alkaline phosphatase and decrease of superoxide dismutase, catalase, glutathione peroxidase, glutathione reductase, glutathione S-transferase, total antioxidant capacity, glutathione, total protein, and albumin in the liver and serum, induced by 5-FU treatment. The obtained data of the current study suggested that CsH and CsE play a protective role in the imbalance elicited by 5-FU and can be used as alternative/complementary supplements with 5-FU to reduce oxidative damages which is the consequence of reactive oxygen species production in cancerous patients.
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