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S-100beta stimulates neurite outgrowth in the rat sciatic nerve grafted with acellular muscle transplants

In English

Författare

Summary, in English

S-100beta promotes neurite extension in vitro and motoneuron survival in the chicken embryo. We demonstrate here that local administration of S-100beta stimulates the sciatic nerve regeneration into acellular muscle grafts. Normally there is a 8-10 day delay in the regeneration of axons into such grafts. Local administration of S-100beta (0.5-1.0 microg/h) significantly stimulated regeneration into the grafts. In S-100beta treated grafts, the regeneration distance was increased with a factor of about 2.3 times as compared to vehicle treated grafts. The distance of regeneration was monitored with pinch test which detects sensory axons. Regenerating axons were growing outside the necrotic muscle cells as revealed with immunohistochemistry for the neurofilament light weight polypeptide. S-100beta was demonstrated immunocytochemically in motor neurons of the rat lumbar spinal cord and in large and medium sized neurons of the dorsal root ganglia. The results suggest that S-100beta is a physiological growth factor for peripheral nerve axons.

Publiceringsår

1997

Språk

Engelska

Sidor

196-201

Publikation/Tidskrift/Serie

Brain Research

Volym

753

Issue

2

Dokumenttyp

Artikel i tidskrift

Förlag

Elsevier

Ämne

  • Neurosciences

Nyckelord

  • Axotomy
  • Nerve regeneration
  • Neurotrophic effect
  • Sensory test

Aktiv

Published

Forskningsgrupp

  • Neural Interfaces

ISBN/ISSN/Övrigt

  • ISSN: 1872-6240