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Glutamate receptor channels in cultured hippocampal neurons. Seiji OZAWA 1 1Department of Physiology, School of Medicine, Gunma University pp.917-925
Published Date 1991/12/10
DOI https://doi.org/10.11477/mf.1431900190
  • Abstract
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It has been proposed that mammalian central nervous system (CNS) neurons possess at least three distinct types of glutamate receptor channel which are selectively activated by the agonists N-methyl-D-aspartate (NMDA), α-amino-3-hydroxy-5-methyl-4-isoxazole propionate (AMPA), and kainate (KA). The NMDA receptor channel is characterized by the following special properties. 1) This receptor channel is blocked by extracellular Mg2+ in a voltage-dependent manner. 2) It is highly permeable to Ca2+ (PCa/PNa≈6). 3) It is greatly potentiated by glycine at concentrations as low as 0.1 μM. The improtant role that the NMDA receptor plays in the CNS function, for example the induction of activity-dependent synaptic plasticity such as long-term potentiation in the hippocampus, is probably a consequence of these special properties.


Copyright © 1991, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1243 印刷版ISSN 0001-8724 医学書院

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