| Literature DB >> 7159275 |
H Unemoto, M Sasa, S Takaori, J Ito, I Matsuoka.
Abstract
Effects of betahistine, an antivertigo drug, were examined on the lateral vestibular nucleus (LVN) neurons of cats anesthetized with alpha-chloralose. Spike generation of monosynaptic LVN neurons elicited by vestibular nerve stimulation remained unaffected with intravenous administration of betahistine up to 5 mg/kg and with iontophoretic application of the drug up to 200 nA. In contrast, the spike generation of polysynaptic I neurons in the LVN was dose-dependently inhibited by intravenous as well as iontophoretic application of betahistine. These results suggest that small doses of betahistine more selectively interfere with synaptic transmission in the polysynaptic I neurons than in the monosynaptic neurons.Entities:
Mesh:
Substances:
Year: 1982 PMID: 7159275 DOI: 10.1007/bf00454214
Source DB: PubMed Journal: Arch Otorhinolaryngol ISSN: 0302-9530