Pu-erh Tea Powder Preventive Effects on Cisplatin-Induced Liver Oxidative Damage in Wistar Rats

Abstract

Asian Pac J Cancer Prev, 15 (17), 7389-7394 IntroductionChemotherapy is one of the major means for malignancy. It seeks to shrink tumors, decrease cancerrelated symptoms, advance quality of life, lengthen life spans of patients, and so on. Many studies have shown the effectiveness and feasibility of chemotherapy for cancers species involving the lung, pancreas, liver, large intestine, and so on. Conversely, treatment with anticancer drugs can also do harm to patients' normal tissues and organs, and those toxicities may lead to a worsened quality of life and shortened survival.Cisplatin (cis-diamminedichloroplatinumⅡ, CDDP) is one of the main chemotherapeutics, which is widely used for the treatment of various malignant solid tumors such as ovarian, lung, testicular and head and neck cancers (Pfister et al., 2010;Dimri et al., 2013; Dua et al., 2013;Besse et al., 2014 AbstractBackground: Chemotherapy is one of the major means for control of malignancies, with cisplatin (CDDP) as one of the main agents, widely used for the treatment of various malignant solid tumors. However, prevention of hepatotoxicity from cisplatin is one of the urgent issues in cancer chemotherapy. In this study, we aimed to investigate the effects of pu-erh tea on hepatotoxicity through body weight and tissue antioxidant parameters like, liver coefficient, serum alanine aminotransferase (ALT), serum aspartate aminotransferase (AST), superoxide dismutase (SOD), glutathione peroxidase (GSH-PX), malondialdehyde(MDA) and glutathione (GSH) levels, and light microscopic evaluation by histological findings. Materials and Methods: The rats were randomly divided into five groups: Control (n=10), cisplatin (3 mg/kg p.i., n=10), cisplatin+pu-erh (0.32 g/kg/day i.g., n=10), cisplatin+pu-erh (0.8 g/kg/day i.g., n=10) and cisplatin+pu-erh (1.6 g/kg/day i.g., n=10). Pu-erh tea powder was administrated for 31 consecutive days. The rats were sacrificed at the end on the second day after a single dose of cisplatin treatment for measuring indices. Results: Pu-erh tea powder exhibited a protective effect by decreasing MDA and GSH and increasing the SOD and GSH-PX levels and GSH-PX/MDA ratio in camparison with the control group. Besides, pu-erh tea was also able to alleviate the pathological damage to some extent. Conclusion: Pu-erh tea powder is protective against cisplatin-induced liver oxidative damages, especially at the medium dosage (0.8 g/kg/d).

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