首页> 中文期刊> 《中国药理学通报》 >白藜芦醇对于小鼠败血症休克的保护作用及其作用机制的研究

白藜芦醇对于小鼠败血症休克的保护作用及其作用机制的研究

         

摘要

Aim To investigate the effect of resveratrol (Res)on septic mice and LPS-insulted H9c2 cells,as well as its involved mechanisms.Methods By use of a mouse cecal ligation and puncture-induced septic model (CLP),the survival of septic mice was evalua-ted after resveratrol treatments.H9c2 cells were insul-ted by LPS and then treated with resveratrol,the mR-NA expressions of TNF-α,SIRT1 and other class III HDAC members were detected using RT-PCR and real-time PCR,Finally,the protein levels of nuclear p65, an important subunit of NF-κB,were measured in H9c2 cells using Western blot assay,to reveal the effect of resveratrol on LPS-induced nuclear transloca-tion of NF-κB.Results Compared with the control septic animals,intraperitoneal injection of resveratrol (1 or 5 mg·kg -1 ·d -1 )significantly increased the survival of septic mice.Furthermore,resveratrol signif-icantly increased mRNA expressions of SIRT1,SIRT2, SIRT6 and SIRT7 in LPS-insulted H9c2 cells.Res-veratrol also remarkably inhibited LPS-induced nuclear translocation of NF-κB.Conclusion An appropriate dose of resveratrol protects septic mouse hearts from the injury induced by LPS through the activation of SIRT family members and the inhibition of NF-κB pathway.%目的:从动物休克模型和细胞水平上研究白藜芦醇(resveratrol,Res)对败血症的调节作用及其分子药理学作用机制。方法通过建立小鼠盲肠结扎穿孔诱导的败血症休克模型(CLP),研究白藜芦醇给药后的小鼠的存活率。然后利用体外培养的心肌细胞建立 LPS 损伤模型,采用反转录PCR(RT-PCR)、Real-time PCR 检测细胞内源性 TNF-α、SIRT1等的 mRNA 的表达水平,Western blot 分析 NF-κB 重要亚基的蛋白表达水平。结果与单纯休克模型组相比较,腹腔注射白藜芦醇(1和5 mg·kg -1·d -1)治疗明显增加败血症休克小鼠的存活率;白藜芦醇处理明显促进 SIRT1、SIRT6和 SIRT7的 mRNA 表达,抑制 LPS 诱导的 NF-κB 核转位。结论适当剂量的白藜芦醇可能通过上调 SIRT 家族成员,并抑制 NF-κB 炎症反应通路,对败血症休克具有潜在的药理学保护作用。

著录项

相似文献

  • 中文文献
  • 外文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号