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Modulatory Effects of Peri-interneuronal Glial Cells on Neuronal Activities Yoshihiko Yamazaki 1 , Hiroshi Kato 1 1Department of Neurophysiology, Yamagata University School of Medicine Keyword: astrocyte , hippocampus , synaptic transmission , dual whole-cell recording pp.689-695
Published Date 2007/7/1
DOI https://doi.org/10.11477/mf.1416100095
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Abstract

 Recently, it has been demonstrated that glial cells express a variety of ion channels and neurotransmitter receptors and can modulate the neuronal activities. We focused on interneuron/peri-interneuronal glial cell pairs in the hippocampus to investigate the direct interactions between these cells. The peri-interneuronal astrocytes suppressed the excitatory postsynaptic currents in an adjacent interneuron through the presynaptic mechanism. Moreover, peri-interneuronal astrocytes activation modulated the interneuronal firing pattern with time dependent manner. These results indicate that peri-interneuronal astrocytes play important roles in the modulation of hippocampal excitability.


Copyright © 2007, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1344-8129 印刷版ISSN 1881-6096 医学書院

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