Action of Glutamate in the Cat Labyrinth
- 1 March 1984
- journal article
- Published by SAGE Publications in Annals of Otology, Rhinology & Laryngology
- Vol. 93 (2) , 163-165
- https://doi.org/10.1177/000348948409300212
Abstract
Glutamate solutions of either 50 m M applied on the membranous labyrinth or 1 m M perfused into the lateral canal in cats increased spontaneous and stimulus-evoked activity of vestibular neurons. Kainic acid (10−4 M) perfused into the labyrinth produced a depolarizing action on vestibular afferents. These results indicate that glutamate could be an excitatory neurotransmitter at the synapse between vestibular hair cells and afferent nerve fibers in the cat.Keywords
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