All animal experiments were conducted in strict accordance with the Guidelines of Health and guidelines for use and were permitted by the Scientific Investigation Committee of the Fourth Military Medical University. Male C57BL/6 mice (8-10 weeks of age, weight 20-25 g) were purchased from Experimental Animal Center of the Fourth Military Medical University (Xi'an, China) and bred in an experimental animal room of SPF grade. They were randomly divided into four groups: control (equivalent saline containing 1% DMSO) group (n = 5), cisplatin (20 mg/kg dissolved in saline) only group (n = 7), cisplatin + polydatin (40 mg/kg dissolved in 1% DMSO) group (n = 7), and cisplatin+ Fer-1 (5 mg/kg dissolved in 1% DMSO) group (n = 7) were administered intraperitoneally. Mice were injected with cisplatin once; PD or Fer-1 was given 1 h before and 24 h after cisplatin. Animals were ethically sacrificed by dislocating their spines at 48 h after cisplatin injection, and whole blood and kidneys were collected for further analysis.
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