Ultrastructural changes in the shape of neurons and related structures in frog sympathetic ganglia after axotomy
作者:
Jacques Taxi,
Daniel Eugène,
期刊:
Biology of the Cell
(WILEY Available online 1991)
卷期:
Volume 72,
issue 1‐2
页码: 75-82
ISSN:0248-4900
年代: 1991
DOI:10.1016/0248-4900(91)90081-W
出版商: Blackwell Publishing Ltd
关键词: axotomy;axon;sympathetic neuron;frog;ganglion
数据来源: WILEY
摘要:
Summary—Changes in the shape of neuronal perikarya and other ganglionic structures were observed by electron microscopy in the frog sympathetic ganglia at different times after axotomy. Degenerating and hypertrophic profiles appeared to reflect a remodelling process affecting preganglionic fibres. The shape of neuronal perikarya was modified by the formation of infoldings occupied by preganglionic fibres and/or by that of short winding dendrites often bearing a synapse. The origin of these changes is discussed. In frog sympathetic ganglia, the period of recovery after axotomy was marked by specific reactions which affected neuronal shape and preganglionic fibres, and are not known to occur in the ganglia of mammal
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