STRYCHNINE ANTAGONIZES JAW-CLOSER MOTONEURON IPSPS INDUCED BY RETICULAR STIMULATION DURING ACTIVE SLEEP

被引:18
作者
CHIRWA, SS
STAFFORDSEGERT, I
SOJA, PJ
CHASE, MH
机构
[1] UNIV CALIF LOS ANGELES,DEPT PHYSIOL,LOS ANGELES,CA 90024
[2] UNIV CALIF LOS ANGELES,DEPT ANAT & CELL BIOL,LOS ANGELES,CA 90024
关键词
GLYCINE; INHIBITORY POSTSYNAPTIC POTENTIAL; MOTONEURON; NUCLEUS RETICULARIS PONTIS ORALIS; SLEEP; STRYCHNINE;
D O I
10.1016/0006-8993(91)90979-6
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
In chronic, unanesthetized, normally respiring cats, stimulation of the nucleus reticularis pontis oralis induced inhibitory postsynaptic potentials (IPSPs) in masseter motoneurons during active sleep, but not during wakefulness or quiet sleep. Strychnine, when applied juxtacellularly by microiontophoresis to masseter motoneurons, specifically suppressed the active sleep-dependent IPSPs. In contrast, bicuculline did not suppress the active sleep-dependent IPSPs. These results indicate these IPSPs are mediated by the putative neurotransmitter glycine.
引用
收藏
页码:323 / 326
页数:4
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