Department of Nephrology, Yunnan Kidney Disease Hospital, Kunming, Yunnan, China.
AM Reddy Memorial College Of Pharmacy, Guntur, Andhra Pradesh, India.
Biofactors. 2019 May;45(3):471-478. doi: 10.1002/biof.1502. Epub 2019 Mar 20.
In kidneys, elevated levels of inflammatory cytokines and oxidative stress were observed in nephrotoxicity triggered by cisplatin. Embelin has the anti-inflammatory property. It also got anti-tumorigenic and antioxidant properties. In this research, we analyzed the actions of embelin on nephrotoxicity triggered by cisplatin and vital actions by which it increases antioxidant actions and corrects the inflammation after embelin administration during nephrotoxicity triggered by cisplatin. Kidney function markers including blood urea nitrogen; serum creatinine; the markers of oxidative stress like malondialdehyde (MDA), antioxidant systems like glutathione, superoxide dismutase, glutathione S-transferase, catalase, and glutathione reductase; inflammation markers like nuclear factor-κB (NF-κB), tumor necrosis factor-α (TNF-α), and interleukin-1 beta (IL-1β); and the extent of nuclear factor-erythroid-2 p45-related factor-2 (Nrf2) and heme oxygenase-1 (HO-1) were determined. Histopathology studies of kidneys were also used to analyze nephrotoxicity induced by cisplatin. Treatment with embelin (25 and 50 mg/kg) upgrades the function of kidneys, by elevating antioxidant levels and reducing the MDA level in cisplatin-administered rats. Embelin treatment demonstrated a significant curtailment of oxidative stress as well as increased the activities of antioxidant enzymes, endogenously. Cisplatin upregulates cytokines (i.e., TNF-α and IL-1β) and NF-κB, and downregulates Nrf2 and HO-1. Embelin treatment also reduced the infiltration of neutrophils in the renal tubules and thus reduced the level of histological impairment. The outcome of this study implements that the signaling pathway of Nrf2/HO-1 may be the principal mechanism of embelin for protection from nephrotoxicity triggered by cisplatin, and thus, embelin diminishes oxidative stress and inflammation by impeding NF-κB. © 2019 BioFactors, 45(3):471-478, 2019.
在顺铂引起的肾毒性中,肾脏中炎症细胞因子和氧化应激水平升高。安石榴苷具有抗炎作用。它还具有抗肿瘤和抗氧化作用。在这项研究中,我们分析了安石榴苷对顺铂引起的肾毒性的作用,以及安石榴苷在顺铂引起的肾毒性中给药后增加抗氧化作用和纠正炎症的重要作用。分析了包括血尿素氮;血清肌酐;丙二醛(MDA)等氧化应激标志物;谷胱甘肽、超氧化物歧化酶、谷胱甘肽 S-转移酶、过氧化氢酶和谷胱甘肽还原酶等抗氧化系统;核因子-κB(NF-κB)、肿瘤坏死因子-α(TNF-α)和白细胞介素-1β(IL-1β)等炎症标志物;核因子-红细胞 2 p45 相关因子-2(Nrf2)和血红素加氧酶-1(HO-1)的程度。还使用肾脏组织病理学研究来分析顺铂引起的肾毒性。安石榴苷(25 和 50mg/kg)治疗可通过提高抗氧化水平和降低顺铂给药大鼠 MDA 水平来改善肾脏功能。安石榴苷治疗可显著减少氧化应激,并增加内源性抗氧化酶的活性。顺铂上调细胞因子(即 TNF-α和 IL-1β)和 NF-κB,并下调 Nrf2 和 HO-1。安石榴苷治疗还减少了中性粒细胞在肾小管中的浸润,从而降低了组织学损伤程度。这项研究的结果表明,Nrf2/HO-1 信号通路可能是安石榴苷保护顺铂引起的肾毒性的主要机制,因此,安石榴苷通过抑制 NF-κB 来减少氧化应激和炎症。 © 2019 BioFactors,45(3):471-478,2019。
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