EFFECT OF OMEGA-CONOTOXIN GVIA ON NEUROTRANSMITTER RELEASE AT THE MOUSE NEUROMUSCULAR-JUNCTION

被引:49
作者
PROTTI, DA [1 ]
SZCZUPAK, L [1 ]
SCORNIK, FS [1 ]
UCHITEL, OD [1 ]
机构
[1] UNIV BUENOS AIRES,FAC MED,INST BIOL CELULAR,BUENOS AIRES,ARGENTINA
关键词
OMEGA-CONOTOXIN; NEUROTRANSMITTER RELEASE; NEUROMUSCULAR JUNCTION; VOLTAGE SENSITIVE CALCIUM CHANNEL; SPONTANEOUS QUANTAL RELEASE; K+-INDUCED QUANTAL RELEASE; ELECTRICALLY EVOKED RELEASE;
D O I
10.1016/0006-8993(91)90156-P
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
The effect of omega-conotoxin GVIA (omega-CgTx) was studied on spontaneous, K+-induced and electrically evoked neurotransmitter release at the neuromuscular junction of mouse diaphragm. omega-CgTx decreased the frequency and amplitude of basal and K+-induced miniature end plate potentials. This effect was abolished by raising the extracellular Ca2+ concentration. omega-CgTx had no effect on the quantal content of the electrically evoked release in this preparation.
引用
收藏
页码:336 / 339
页数:4
相关论文
共 16 条