QUANTAL PROPERTIES OF S-TYPE GLUTAMATERGIC SYNAPTIC INPUT TO THE STRIATAL MEDIUM SPINY NEURON FROM NEONATE RAT

被引:3
作者
MORI, A
TAKAHASHI, T
MIYASHITA, Y
KASAI, H
机构
[1] TOHOKU UNIV,FAC MED,DEPT PHYSIOL,BUNKYO KU,SENDAI,MIYAGI 980,JAPAN
[2] WASEDA UNIV,SCH HUMAN SCI,DEPT MOLEC NEUROBIOL,MIKAJIMA,SAITAMA 359,JAPAN
关键词
PATCH CLAMP; BRAIN SLICE; QUANTAL ANALYSIS; CALCIUM; STRIATUM; GLUTAMATE;
D O I
10.1016/0304-3940(94)90391-3
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
We investigated the quantal properties of the small glutamatergic EPSPs (S-type EPSPs) in the striatal medium spiny neurons using the whole-cell recording method. Amplitudes of unitary glutamatergic EPSCs displayed a single peak at about 4.7 pA that was unaffected by decreasing external Ca2+. This indicates that afferent fibers contact the medium spiny neuron with only a few, possibly one, release sites which generate no more than one quantum of EPSCs at a time.
引用
收藏
页码:199 / 202
页数:4
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