Panax vietnamensis var. fuscidiscus, or PVF, a member of Araliaceae, is a new and high-value variety of Vietnamese Ginseng (P. vietnamensis var. vietnamensis—VG). PVF shares some similarities in terms of its saponin profile with VG, including protopanaxadiol, protopanaxatriol, and ocotillol saponin. Previous research has revealed that the steaming process significantly increases the bioactivities of VG, especially the renal protective effect. In this study, PVF roots were steamed at a high temperature (120 °C) for 12 h to obtain Black PVF (BPVF). The BPVF extract was tested in both in vitro and in vivo models of cisplatin toxicity to assess its antioxidant and nephroprotective activities. The results showed that the BPVF obtained from the steaming process exhibited the highest antioxidant activity at 12 h. The chemical composition of BPVF is characterized by less-polar saponins such as G-Rg3, -Rg5, and ocotillol genin. The BPVF extract (200 mg/kg) reversed kidney injuries by significantly lowering serum creatinine and blood urea nitrogen (BUN) levels, which had increased due to cisplatin toxicity. The antioxidant effect of BPVF extract also prevented lipid peroxidation by lowering malondialdehyde (MDA) levels and restoring redox balance by increasing glutathione (GSH) content in kidney cells to nearly normal levels, with effects comparable to quercetin. This study provides evidence of BPVF’s therapeutic potential with respect to kidney injuries due to cisplatin toxicity.
Nguyen et al. (Sat,) studied this question.
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