Pnm. Lapeyre et C. Dewaele, GLYCINERGIC INHIBITION OF SPONTANEOUSLY ACTIVE GUINEA-PIG MEDIAL VESTIBULAR NUCLEUS NEURONS IN-VITRO, Neuroscience letters, 188(3), 1995, pp. 155-158
Effects of glycine on the spontaneous activity of medial vestibular nu
cleus (MVN) neurons recorded extracellularly from guinea-pig brainstem
slices were investigated. Glycine produced a dose-dependent decrease
in the resting discharge rate of all MVN neurons tested, with a mean E
C(50) Of 3.9 x 10(-4) M. The inhibitory effect of glycine was reversib
ly blocked by strychnine and persisted in a low calcium/high magnesium
-containing saline solution. These findings suggest the existence of a
direct strychnine-sensitive inhibitory Effect of glycine on guinea-pi
g MVN neurons.