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• 基础研究 • 上一篇    下一篇

人参二醇组皂苷对内毒素休克大鼠脑皮质ⅠκBα mRNA表达的影响

王 志,李金成,刘 潇,刘喜春,赵雪俭,孙连坤*   

  1. 吉林大学基础医学院病理生理学教研室,吉林 长春130021
  • 收稿日期:2004-03-21 修回日期:1900-01-01 出版日期:2005-01-28 发布日期:2005-01-28
  • 通讯作者: 孙连坤

Effects of PDS on ⅠκBα mRNA expression of cortexin endotoxic shock rats

WANG Zhi, LI Jin-cheng, LIU Xiao, LIU Xi-chun, ZHAO Xue-jian, SUN Lian-kun*   

  1. Department of Pathophysiology, School of Basic Medical Sciences, Jilin University,Changchun 130021, China
  • Received:2004-03-21 Revised:1900-01-01 Online:2005-01-28 Published:2005-01-28
  • Contact: SUN Lian-kun

摘要: 目的:通过观察内毒素休克大鼠脑皮质中LPO含量、SOD活力和ⅠκBα mRNA表达及人参二醇组皂苷(PDS)对其的影响,探讨内毒素引起脑组织损伤的分子机制。方法:Wistar大鼠随机分为对照组、内毒素休克(LPS)组、地塞米松(LPS+Dex)组和人参二醇组皂苷(LPS+PDS)组。大鼠静脉注射内毒素(4 mg•kg-1)4 h后测定脑组织中LPO含量、SOD活力及ⅠκBα mRNA的表达。 结果:LPS+Dex组和LPS+PDS组LPO显著低于LPS组(P<0.05),SOD活力明显高于LPS组(P<0.05)。LPS+Dex组和LPS+PDS组ⅠκBαmRNA表达高于LPS组(P<0.05)。 结论:PDS能够上调脑组织中ⅠκBα的表达,减轻内毒素引起的组织过氧化反应,对中枢神经系统具有保护作用(P<0.05)。

关键词: 副作用, 人参二醇, 药理学, 休克, 脓毒性, 病理生理学, 地塞米松, 脂质过氧化作用

Abstract: Objective To explore the molecular mechanism of brain tissue injury induced by endotoxin through observation of LPO content, SOD activity, and ⅠκBα mRNA expression of cortex in endotoxic shock rats. Methods Wistar rats were randomly divided into lipopolysaccharide(LPS), LPS+dexamethasone(Dex), LPS+panaxadiol(PDS) and control group, respectively. The LPO content, SOD activity, and ⅠκBα mRNA expression were assayed 4 h after intravenous injection of LPS. Results MDA contents in LPS+Dex and LPS+PDS groups were obviously lower than that in LPS group (P<0.05), and the SOD activities were significantly higher than that in LPS group (P<0.05). Compared with the control group, ⅠκBα mRNA expressions in LPS+Dex and LPS+PDS groups were significantly higher than that in LPS group (P<0.05). Conclusion PDS may up-regulate ⅠκBα expression in the brain tissue, release the tissue peroxidation reaction induced by endotoxin and protect the central nervous system.

Key words: adverse effects, panaxadiol, pharmacology, shock, septic, physiopathology, dexamethasone, pharmacology, lipid peroxidation

中图分类号: 

  • R285.5