RESUMEN
Objectives: Cisplatin (CDDP) is a highly effective chemotherapeutic agent, but its clinical application has been limited by nephrotoxicity. Tanshinone â (T-I), a phenanthrenequinone compound extracted from the Chinese herb Danshen, has been used to improve circulation and treat cardiovascular diseases. The aim of this study was to investigate the protective effect of T-I on CDDP-induced nephrotoxicity in mice. Materials and Methods: The BALB/c mouse models of nephrotoxicity were established by a single intraperitoneal injection of 20 mg/kg CDDP on the first day of the experiment. Three hours prior to CDDP administration, the mice were dosed with 10 mg/kg and 30 mg/kg T-I for 3 consecutive days intraperitoneally to explore nephroprotection of T-I. Results: Treatment with T-I significantly reduced blood urea nitrogen and creatinine levels in serum observed in CDDP-administered mice, especially at a dose of 30 mg/kg. T-I at 30 mg/kg significantly decreased malondialdehyde levels and increased glutathione levels and the enzymatic activity of catalase in kidney tissue compared to CDDP. Additionally, T-I (30 mg/kg) significantly reversed the CDDP-decreased expression level of superoxide dismutase 2 protein in renal tissue. Histopathological evaluation of the kidneys further confirmed the protective effect of T-I. Conclusion: The findings of this study demonstrate that T-I can protect against CDDP-induced nephrotoxicity through suppression of oxidative stress.
RESUMEN
OBJECTIVE: To probe into the intervening action of polysaccharides of Zhu Zi Shen (Rhizoma Panacis Majoris) (PZZS) on oxidative stress and hemodynamics in rats with adriamycin-induced chronic congestive heart failure (CHF). METHODS: After SD rats were successfully modeled with adriamycin, they were randomly divided into a normal control group, a model group, a PZZS group, and a captopril group, and were administrated respectively. At the end of experiment, the hemodynamic function, whole heart weight index, and the blood CK, SOD, MDA, NO, NOS were detected; and the myocardial morphological examinations were carried out. RESULTS: Compared with the normal control group, the arterial systolic pressure (SBP), diastolic pressure (DBP), mean arterial pressure (MAP), heart rate (HR), left ventricular systolic peak (LVSP), and left ventricular pressure change rate (dp/dt(max)) significantly decreased, and left ventricular end diastolic pressure (LVEDP), whole heart weight index, the blood CK, MDA, NO, NOS significantly increased in the model group. PZZS significantly improved the hemodynamic function, lowered the MDA and NO levels, and decreased the CK and NOS activities in the CHF rats. CONCLUSION: PZZS can improve the hemodynamic function, and alleviate the oxidative stress reaction in the CHF rat.