LIGHT AND ELECTRON-MICROSCOPIC LOCALIZATION OF 5-HT-IMMUNOREACTIVE BOUTONS IN THE RAT TRIGEMINAL MOTOR NUCLEUS

被引：25
|
作者：
SAHA, S [1 ]
APPENTENG, K [1 ]
BATTEN, TFC [1 ]
机构：
[1] UNIV LEEDS,DEPT CARDIOVASC STUDIES,LEEDS LS2 9JT,W YORKSHIRE,ENGLAND
来源：
BRAIN RESEARCH | 1991年 / 559卷 / 01期
关键词：
TRIGEMINAL; SEROTONIN; ELECTRON MICROSCOPY; SYNAPSE; MOTONEURON;
D O I：
10.1016/0006-8993(91)90297-9
中图分类号：
Q189 [神经科学];
学科分类号：
071006 ;
摘要：
We have used pre-embedding EM immunohistochemical methods to obtain quantitative data on the frequency and post-synaptic targets of 5-hydroxtryptamine-immunoreactive (5-HT-IR) boutons within the rat V motor nucleus. Thirteen percent (69/531) of all synaptic contacts in the motor nucleus involved 5-HT-IR boutons. Seventy-four percent of 5-HT-IR boutons made axo-dendritic contacts, 20% axo-somatic contacts, and 6% axo-axonic contacts. We conclude that a significant fraction of boutons in the motor nucleus are 5-HT-IR and most contribute to postsynaptic rather than presynaptic effects on trigeminal motoneurones.
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页码：145 / 148
页数：4
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