Contribution of NMDA Receptors to Activity of Augmenting Expiratory Neurons in Vagotomized Cats

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抄録

To identify the NMDA receptor-mediated mechanism in augmenting expiratory(E2)neurons, the effects of systemic and local application of dizocilpine on spontaneous and evoked postsynaptic potentials(PSPs)were investigated in decerebrate and vagotomized cats.Intravenously applied dizocilpine reduced the inhibitory PSPs during inspiration and stage 1 expiration, but had little effect on the excitatory PSPs during stage 2 expiration.Iontophoresed dizocilpine caused a continuous hyperpolarization throughout the respiratory cycle.Dizocilpine had no effect on vagally evoked PSPs.These results suggest that the NMDA mechanisms are involved presynaptically in periodic postsynaptic inhibitions and postsynaptically in tonic excitation in E2 neurons.

収録刊行物

  • The Japanese journal of pharmacology

    The Japanese journal of pharmacology 82(4), 353-357, 2000-04-01

    公益社団法人 日本薬理学会

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各種コード

  • NII論文ID(NAID)
    10008184056
  • NII書誌ID(NCID)
    AA00691188
  • 本文言語コード
    ENG
  • 資料種別
    SHO
  • ISSN
    00215198
  • NDL 記事登録ID
    5362840
  • NDL 雑誌分類
    ZS51(科学技術--薬学)
  • NDL 請求記号
    Z53-D199
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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