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中国临床药理学与治疗学 ›› 2007, Vol. 12 ›› Issue (4): 381-384.

• 综述与讲座 • 上一篇    下一篇

新型糖原磷酸化酶抑制剂-山楂酸对小鼠脑缺血-再灌注的保护作用研究

关腾1, 李运曼1, 孙宏斌2   

  1. 1中国药科大学生理教研室,2新药研究中心, 南京210009, 江苏
  • 收稿日期:2006-12-12 修回日期:2006-12-12 发布日期:2020-10-30
  • 作者简介:关腾, 男, 硕士研究生, 研究方向:心血管药理。Tel:13776668613 E-mail:guan.teng @hotmail.com
  • 基金资助:
    教育部“ 2005 年度新世纪优秀人才支持计划” 资助项目(NCET-05-0495); 高等学校博士学科点专项科研基金资助项目(Y051018)

Effects of maslinic acid as a novel glycogen phosphorylase inhibitor on cerebral ischemia in mice

GUAN Teng1, LI Yun-man1, SUN Hong-bin2   

  1. 1Department of Physiology;2Center of Drug Discovery, China Pharmaceutical University, Nanjing 210009, Jiangsu,China
  • Received:2006-12-12 Revised:2006-12-12 Published:2020-10-30

摘要: 目的 研究糖原磷酸化酶抑制剂-山楂酸对缺血性脑损伤的保护作用, 初步探讨糖原磷酸化酶抑制剂的脑缺血保护机制。 方法 采用合并迷走神经结扎双侧颈总动脉造成小鼠急性不完全性脑缺血-再灌注模型, 测定脑组织匀浆乳酸含量、相关生化指标以及肝糖原含量。 结果 山楂酸灌胃给药以后能降低脑组织乳酸、丙二醛含量, 提高超氧化物歧化酶、乳酸脱氢酶活力, 还能对抗缺血期间的肝糖原降解。 结论 山楂酸对缺血性脑损伤具有一定保护作用, 其抗脑缺血作用至少是与通过部分抑制糖酵解并进而减轻代谢性酸中毒有关。

关键词: 脑缺血, 再灌注损伤, 乳酸中毒, 糖原磷酸化酶抑制剂, 山楂酸

Abstract: AIM: This experiment was designed to study the protective effects of maslinic acid, a novel glycogen phosphorylase inhibitor, on cerebral ischemia in mice. METHODS: The model of acute cerebral ischemia-reperfusion in mice was set up by ligating bilateral common carotid artery and vagus, thus blocking the blood stream for 90 s, and subjecting mice to 5 min reperfusion.Brain samples were prepared to observe the cerebral injury;liver samples were prepared to observe the status of hepatic glucose metabolism, which contribute to the observed hyperglycemia during cerebral ischemia. RESULTS: Maslinic acid significantly reduced the lactate and MDA level, increased SOD and LDH activity and preserved the hepatic glycogen after mice were subjected to acute cerebral ischemia-reperfusion. CONCLUSION: Maslinic acid may exert its potential protective effects against cerebral ischemic injury, at least in part, through inhibition of over degradation of cerebral glycogen and thus reducing/Lactate production during ischemia.

Key words: cerebral ischemia, ischemia-reperfusion injury, lactate acidosis, glycogen phosphorylase inhibitors, maslinic acid

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