Phytomedicine:姜黄素可改善乙醛酸诱导的草酸钙沉积和肾损伤

2019-04-29 不详 网络

肾结石是全世界最常见和最常见的泌尿系统疾病之一。包括氧化应激,炎症,细胞凋亡,纤维化和自噬在内的几种病理生理机制涉及结石形成。姜黄素是姜黄的主要活性成分,已被证明具有多效的生物学和药理学特性,如抗氧化,抗炎和抗纤维化作用。本研究旨在提出系统地研究姜黄素在草酸钙(CaOx)肾结石小鼠模型中的保护作用和潜在机制。通过连续腹膜内注射乙醛酸盐(100mg/kg)1周,在雄性C57BL/6小鼠中建立动物模型

肾结石是全世界最常见和最常见的泌尿系统疾病之一。包括氧化应激,炎症,细胞凋亡,纤维化和自噬在内的几种病理生理机制涉及结石形成。姜黄素是姜黄的主要活性成分,已被证明具有多效的生物学和药理学特性,如抗氧化,抗炎和抗纤维化作用。本研究旨在提出系统地研究姜黄素在草酸钙(CaOx)肾结石小鼠模型中的保护作用和潜在机制。

通过连续腹膜内注射乙醛酸盐(100mg/kg)1周,在雄性C57BL/6小鼠中建立动物模型。在注射乙醛酸盐前7天口服给予小鼠姜黄素,并以50mg/kg或100mg/kg口服给予总共14天。收获双侧肾组织并进行处理以进行氧化应激指数检测,组织病理学检查和其他分析。

结果显示,姜黄素的共同给药可明显降低乙醛酸盐诱导的小鼠肾脏CaOx沉积和组织损伤。同时,姜黄素通过降低MDA含量,增加动物模型中SOD,CAT,GPx,GR和GSH水平,减轻氧化应激反应。此外,姜黄素治疗显著抑制高草酸尿症引起的细胞凋亡和自噬。姜黄素还可以减轻IL-6,MCP-1,OPN,CD44,α-SMA,胶原蛋白I和胶原纤维沉积的高表达,这些沉积由高草酸尿症引起。此外,结果显示,晶体组小鼠肾脏中Nrf2及其主要下游产物如HO-1,NQO1和UGT的总表达和核积累均降低,而用姜黄素处理可以救援这种恶化。

总之,该研究结果表明,姜黄素可显著减轻小鼠肾脏CaOx晶体沉积和并发肾组织损伤。潜在的机制涉及抗氧化,抗细胞凋亡,抑制自噬,抗炎和抗纤维化活性的组合以及通过Nrf2信号传导通路降低OPN和CD44表达的能力。多效的抗癫痫特性与最小的副作用相结合,使姜黄素成为预防和治疗新的或复发性肾结石的良好潜在选择。

原始出处:

Li Y, Zhang J, Curcumin ameliorates glyoxylate-induced calcium oxalate deposition and renal injuries in mice. Phytomedicine. 2019 Feb 4;61:152861. doi: 10.1016/j.phymed.2019.152861.

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    2019-12-23 jeanqiuqiu
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    2020-01-01 kalseyzl
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