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中国临床药理学与治疗学 ›› 2002, Vol. 7 ›› Issue (6): 493-495.

• 研究原著 • 上一篇    下一篇

果糖二磷酸钠镁对缺血突触体乳酸含量及ATP酶活性的影响

曾凡新, 董志1, 周岐新1   

  1. 重庆医药工业研究院药理毒理室,重庆 400061;
    1重庆医科大学药理教研室,重庆 400016
  • 收稿日期:2002-09-03 接受日期:2002-09-11 出版日期:2002-12-26 发布日期:2020-11-20

Effects of sodium magnesium fructose diphosphate on lactate concentration and ATPase activity of ischemic synaptosome

ZENG Fan-Xin, DONG Zhi1, ZHOU Qi-Xin1   

  1. Department of Pharmacology and Toxicology,Chongqing Pharmaceutical Research Institute,Chongqing 400061;
    1 Department of Pharmacology,Chongqing University of Medical Science,Chongqing 400016
  • Received:2002-09-03 Accepted:2002-09-11 Online:2002-12-26 Published:2020-11-20
  • Contact: ZENG Fan-Xin,male,engineer,master' s degree,engaged in neuropharmacology.Tel:023-62505956  E-mail:zfx2806@sohu.com
  • About author:DONG Zhi,male,MD,professor,engaged in neuropharmacology.

摘要: 目的 研究果糖二磷酸钠镁(FDPM)对缺血突触体乳酸含量及ATP 酶活性的影响,以探讨其脑保护作用机制。方法 制备正常大鼠脑突触体,氧糖剥夺培养建立缺血突触体模型,分别加1.3 mmol·L-1硫酸镁,4.0 mmol·L-11,6-二磷酸果糖(FDP)及1.3mmol·L-1 果糖二磷酸钠镁共培养60 min,测定突触体乳酸含量及Na+-K+ATP 酶和Ca2+-Mg2+ATP 酶活性。结果 FDPM 可明显降低缺血突触体乳酸含量,升高Na+-K+ATP 酶和Ca2+-Mg2+ATP 酶活性(P <0.05),其作用强于FDP 的作用。结论 FDPM保护脑缺血的作用机制可能与其改善脑缺血后能量代谢,减轻脑组织酸中毒状态有关。

关键词: 脑缺血, 果糖二磷酸钠镁, 1, 6-二磷酸果糖, 硫酸镁, 突触体, 乳酸, Na+-K+ATP 酶, Ca2 +-Mg2+ATP 酶

Abstract: AIM: To study the effects of sodium magnesium fructose diphosphate(FDPM)on lactate concentration and ATPase activity of ischemic synaptosome,so as to explore the protective mechanisms of FDPM on cerebral ischemia.METHODS: Synaptosome prepared from normal rat brain was cultured with oxygen and glucose deprived to establish the model of ischemic synaptosome.1.3 mmol·L-1magnesium sulfate,4.0mmol·L-1 fructose-1,6-diphosphate(FDP)and 1.3 mmol ·L-1 FDPM were incubated with the ischemic synaptosomes separately.After 60min,the lactate concentration as well as the activities of Na+-K+ATPase and Ca2+-Mg2+ATPase were detected.RESULTS: FDPM reduced the lactate concentration,raised the activities of Na+-K+ATPase and Ca2+-Mg2+ATPase of ischemic synaptosomes(p<0.05).The effects of FDPM were stronger than those of FDp(p<0.05).CONCLUSION: FDPM may protect cerebral ischemia by improving the energy metabolism,and mitigating acidosis state of brain tissue.

Key words: cerebral ischemia, sodium magnesium fructose diphosphate, fructose-1, 6-diphosphate, magnesium sulfate, synaptosome, lactate, Na+-K+ATPase, Ca2+-Mg2+ATPase

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