Ultrastructure of γ-motoneurons after temporary or permanent interruption of peripheral target contact

I. P. Johnson*, Y. S. Simaika, T. A. Sears

*Corresponding author for this work

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The paradigm of nerve crush, vs. nerve transection and ligation, was used to examine the effects of temporary or permanent interruption of peripheral target contact on the ultrastructure of cat thoracic γ-motoneurons. The normal, highly ordered ultrastructure of Nissl bodies was lost 8 days after axotomy. Nissl bodies remained disorganised up to 305 days after nerve transection and ligation. In contrast, normal ultrastructural orderliness was restored for many of the Nissl bodies of γ-motoneurons 64 days following nerve crush. A decrease in the area of the Golgi apparatus was found 64 days following both nerve crush and nerve transection with ligation. Other organelles were unaltered.

Original languageEnglish
Pages (from-to)337-344
Number of pages8
JournalBrain Research
Volume631
Issue number2
DOIs
Publication statusPublished - 24 Dec 1993
Externally publishedYes

Keywords

  • Axotomy
  • Nissl body
  • Ultrastructure
  • γ-Motoneuron

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