天然产物研究与开发 ›› 2020, Vol. 32 ›› Issue (8): 1413-1418.doi: 10.16333/j.1001-6880.2020.8.018

• 开发研究 • 上一篇    下一篇

荠苧黄酮通过抑制氧化应激和炎症改善高原缺氧诱导的小鼠脑组织损伤

刘睿1,邵瑾2,赵彤2,何蕾2,马慧萍2,景临林2*


  

  1. 1联勤保障部队第九四〇医院干部病房;2联勤保障部队第九四〇医院药剂科 全军高原医学重点实验室,兰州 730050

  • 出版日期:2020-08-28 发布日期:2020-09-02
  • 基金资助:
    国家自然科学基金(81872796);军队后勤科研计划(CWH17J010);甘肃省自然科学基金(18JR3RA 408);中国博士后科学基金(2012M521926)

Mosloflavone ameliorates high altitude-induced brain injury via inhibiting oxidative stress and inflammation

LIU Rui1,SHAO Jin2,ZHAO Tong2,HE Lei2,MA Hui-ping2,JING Lin-lin2*#br#

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  1. 1Cadre Ward,The 940th Hospital of Joint Logistics Support force of PLA;2Department of Pharmacy,The 940th Hospital of Joint Logistics Support force of PLA,The Lab of PLA for High Altitude Medicine,Lanzhou 730050,China

  • Online:2020-08-28 Published:2020-09-02

摘要:

为了阐明荠苧黄酮对高原缺氧致脑组织损伤的保护作用和可能机制,本研究利用建立的低压低氧诱导脑组织损伤模型,考察了芥苧黄酮对高原缺氧小鼠脑组织中氧化应激和炎性因子等相关生化指标和蛋白表达的影响。结果发现:经荠苧黄酮预处理能够显著降低低压低氧小鼠脑组织中ROS、MDA和IL-1β、IL-6和TNF-α含量,提高SOD、CAT和GSH-Px等抗氧化酶的活性和GSH水平,降低IL-1β和TNF-α蛋白表达,提高SOD1和CAT蛋白表达。综上所述,荠苧黄酮对高原缺氧诱导脑组织损伤的保护作用与清除自由基、抑制炎性因子的释放、降低脑组织氧化应激和炎性反应有关。

关键词: 荠苧黄酮, 低压低氧, 脑损伤, 氧化应激, 炎症反应

Abstract:

To assess the protective effect and underling mechanism of mosloflavone on brain damage induced by high altitude,a brain damage model induced by hypobaric hypoxia (HH) was established and used to evaluate the effect of mosloflavone on oxidative stress and inflammatory response related indexes and proteins in brain issue of mice after high altitude exposure. The results indicated that prior administration of mosloflavone reduced the level of ROS and MDA,elevated the GSH content and activities of SOD,CAT and GSH-Px in brain tissue of mice following HH exposure. In addition,Mosloflavone could decrease the expression of IL-1β and TNF-α and increase the expression of SOD1 and CAT in brain tissue. In summary,mosloflavone exerted its neuroprotective effect on brain injury induced by HH in mice likely through scavenging free radical and inhibiting the release of proinflammatory cytokines,which suppressing oxidative stress and inflammatory response in brain tissue.

Key words: mosloflavone, hypobaric hypoxia, brain injury, oxidative stress, inflammatory response

中图分类号:  R965.1