中国临床解剖学杂志 ›› 2015, Vol. 33 ›› Issue (1): 89-92.doi: 10.13418/j.issn.1001-165x.2015

• 实验研究 • 上一篇    下一篇

Dimebon对小鼠中型多棘神经元NMDA激活电流的影响

许晓利1,  李琴1,   宋露2,  Ilya Bezprozvanny2   

  1. 1.江汉大学医学院基础部,  武汉 430056;   2.美国德州大学西南医学中心生理系,  达拉斯 75390
  • 收稿日期:2014-08-21 出版日期:2015-01-25 发布日期:2015-02-12
  • 通讯作者: 李琴,教授,Tel:18202773486, E-mail: queenlee7@ aliyun.com E-mail:xuxiaoli1001@163.com
  • 作者简介:许晓利(1963-),女,湖北省武汉市人,副教授,研究方向:老年痴呆的药物研究,Tel: 18986271201

Effect of dimebon on NMDA-activated current in mice medium spiny neuron 

XU Xiao-li1,   LI Qin 1,    SONG Lu 2,    Ilya Bezprozvanny 2   

  1. 1.Department of Basic Medicine, School of Medical Sciences, Jianghan University, Wuhan  430056, China;
    2.Department of Physiology,  University of Texas Southwestern Medical Center, Dallas 75390,USA
  • Received:2014-08-21 Online:2015-01-25 Published:2015-02-12

摘要:

目的 探讨药物Dimebon在阿尔茨海默氏病(AD)和亨廷顿氏病(HD)的药理作用。方法    采用膜片钳技术在培养的小鼠纹状体中型多棘神经元(medium spiny striatal neurons,MSN)上观察不同浓度的Dimebon对NMDA  (N-methyl-D-aspartic acid)受体激活电流的影响。结果   高浓度的Dimebon抑制NMDA激活电流,而低浓度的Dimebon增强NMDA 激活电流, 从而下调NMDA 受体。结论   Dimebon对NMDA受体激活电流的影响有双重作用,依Dimebon浓度的不同而不同,为临床用药提供依据。

关键词:  , Dimebon, 中型多棘神经元, NMDA受体激活电流

Abstract:

Objective  Dimebon is an antihistamine compound which has been proposed to treat neurodegenerative disorders, but the mechanism remain elusive. To explore Dimebon effection on Alzheimer's disease and Huntington's disease. Method   Membrane currents were measured by using whole cell patch clamp techniques.  the influence ofdifferent concentration of Dimebon on NMDA -activated currents in primary Medium Spiny Striatal Neuronal cultures (MSN) from wild type (WT) mice were studied.  Results  1~50 μmol/L Dimebon inhibited NMDA activated currents, but 0.1~0.5μmol/L increased NMDA activated currents.   Conclusion    Dimebon has dual function on NMDA receptors.

Key words: Dimebon,  , Medium spiny striatal neurons, NMDA receptor

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