NEUROPEPTIDE-Y-IMMUNOREACTIVE SYNAPSES IN THE INTERMEDIOLATERAL CELL COLUMN OF RAT AND RABBIT THORACIC SPINAL-CORD

被引:31
作者
LLEWELLYNSMITH, IJ [1 ]
MINSON, JB [1 ]
MORILAK, DA [1 ]
OLIVER, JR [1 ]
CHALMERS, JP [1 ]
机构
[1] FLINDERS UNIV,SCH MED,DEPT NEUROSCI,BEDFORD PK,SA 5042,AUSTRALIA
关键词
Blood pressure; Immunocytochemistry; Intermediolateral cell column; Neuropeptide Y; Spinal cord; Ultrastructure;
D O I
10.1016/0304-3940(90)90648-S
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Neuropeptide Y (NPY)-immunoreactive nerve fibers in the intermediolateral cell column of rat spinal cord segments T2-T3 and T8-T10 and rabbit segments T3-T6 were studied with light and electron microscopic immunocytochemistry. Plexuses of NPY-immunoreactive nerve fibers were found by light microscopy. NPY-positive synapses were present electron microscopically but non-immunoreactive synapses greatly outnumbered NPY-immunoreactive ones. In the lateral horn of rat T9, 30% of the vesicle-containing NPY-positive axon profiles formed synapses, 95% of which were axodendritic. These synaptic connections may mediate the effects of brainstem NPY neurons on the activity of sympathetic preganglionic neurons. © 1990.
引用
收藏
页码:243 / 248
页数:6
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