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  • Title: [Effects of different neuromediators and regulatory peptides on the impulse activity of neurons in the superior vestibular nucleus].
    Author: Iasnetsov VV, Pravdivtsev VA, Motin VG, Karsanova SK, Ivanov IuV.
    Journal: Aviakosm Ekolog Med; 2011; 45(3):52-4. PubMed ID: 21916253.
    Abstract:
    The microelectrode technique and microiontophoresis of physiologically active substances in experiments with cats immobilized with the muscle relaxants made it clear that different classical neuromediators (acetylcholine, norepinephrine, gamma-aminobutyric acid (GABA) and others), as well as regulatory peptides (enkephalins, thyrotropin-releasing hormone (TRH), vasoactive interstitial peptide (VIP), somatostatin (SS) and others) can exert a direct effect on the majority (61 to 100%) of neurons in the superior vestibular nucleus (SVN). The inhibiting effect of enkephalins, VIP and SS on the neurons impulse activity remained essentially unchanged by L-glutamate. Also, enkephalins, VIP and SS were found to amplify the inhibiting action of GABA and glycine. Consequently, these substances can fulfill the role of SVN neuromediators and/or neuromodulators.
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