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中国临床药理学与治疗学 ›› 1997, Vol. 2 ›› Issue (4): 253-255.

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异丙酚 、氯胺酮对大鼠突触体 Na+, K+-ATP 酶活性的影响*

胡兴国, 王钧, 曾因明, 段世明, 戴体俊, 许鹏程, 万龄丽   

  1. 徐州医学院麻醉医学研究所, 附属医院麻醉科, 徐州 221002
  • 收稿日期:1997-07-30 出版日期:1997-12-26 发布日期:2020-11-30
  • 作者简介:胡兴国, 男, 硕士研究生。曾因明, 男 62 岁, 教授, 博士生导师, 主要从事麻醉医学研究。
  • 基金资助:
    *国家自然科学基金资助课题 No.39670700

Effects of propofol and ketamine on Na+, K+-ATPase activity of synaptosomes in rat brain in vivo

Hu Xingguo, Wang Jun, Zeng Yinming, Duan Shiming, Dai Tijun, Xu Pengcheng, Wan Lingli   

  1. Research Institute of Anesthesiology, Xuzhou Medical College, Xuzhou 221002
  • Received:1997-07-30 Online:1997-12-26 Published:2020-11-30

摘要: 目的 观察异丙酚、氯胺酮对大鼠不同脑区突触体 Na+, K+-AT P 酶活性的影响。方法 SD 大鼠, 随机分为三组, 每组 10 只, 分别 ip 生理盐水 10ml/kg(对照组), 异丙酚 100mg/kg 或氯胺 酮 100 mg/kg。用分光光度法测定大脑皮层 、海马和脑干突触体 Na+, K+-ATP 酶活性。结果 与对照组比较, 异丙酚明显抑制大脑皮层 、 海马和脑干突触体 Na+, K+-ATP 酶活性 (P<0.01), 氯胺酮明显降低大脑皮层和脑干突触体 Na+, K+-ATP 酶活性(P<0.01), 但对海 马突触体 Na+, K+-ATP 酶活性无明显影响(P<0.01)。结论 异丙酚、氯胺酮的全身麻醉作 用可能与其抑制脑突触体 Na+, K+-ATP 酶活性有关。

关键词: 异丙酚, 氯胺酮, Na+,K+-ATP酶, 突触体

Abstract: Aim To investigate the effects of propofol and ketamine on Na+, K+-ATPase activity in rat brain synaptosomes.Methods Thirty SD rats were divided randomly into three groups. The aminals were given intraperitoneally (ip)normal saline 10ml/kg (control group), propofol 100mg/kg or ketamine 100mg/kg, respectively. Na+, K+-ATPase activity of synaptosmes was assassed by spectrophotometric analysis.Results In the propofol group Na+, K+-ATPase activities of cerebrocortical, hippocampal and brain stem synaptosomes were significantly inhibited as compared with those in the control group (P<0.01). In the ke-tamine group, Na+, K+-ATPase activities of cerebrocortical and brain stem synaptosomes were significantly lower than those in the control group (P<0.01). Conclusions The general anesthesia effects of propofol and ketamine may be related to the inhibition of Na+, K+-ATPase activity of brain synaptosomes in rats.

Key words: propofol ;ketamine ;Na+, K+-ATPase ;cerebral synaptosomes

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