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Strategies for repair of the deafferented spinal cord
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Neuroanatomy. (Neuroanatomy)
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Neuroanatomy.
2002 (English)In: Brain Research Reviews, ISSN 0165-0173, E-ISSN 1872-6321, Vol. 40, no 1-3, 301-308 p.Article in journal (Refereed) Published
Abstract [en]

Deafferentation of the spinal cord by interruption of the sensory fibers in the dorsal roots highlights the problem of regeneration failure in the central nervous system. The injured dorsal root axons regenerate steadily, albeit slowly, in the peripheral compartment of the dorsal root, but abruptly cease to elongate when confronted with the interface between the peripheral and central nervous system, the dorsal root transitional zone (DRTZ). The glial cells of the CNS and their products together form this regeneration barrier. Recent years have witnessed several successful approaches to, at least in part, overcome this barrier. Particularly promising results have been obtained by (1). the replacement of adult non-regenerating dorsal root ganglion neurons with corresponding cells from embryonic or fetal donors, (2). the implantation of olfactory ensheathing cells at the DRTZ, and (3). immediate intrathecal infusion of growth factors to which dorsal root ganglion cells respond. In all these instances, growth of sensory axons into the adult spinal cord, as well as return of spinal cord connectivity, have been demonstrated. These findings suggest routes towards treatment strategies for plexus avulsion, and contribute to our understanding of possibilities to overcome regeneration failure in the spinal cord.

Place, publisher, year, edition, pages
2002. Vol. 40, no 1-3, 301-308 p.
Keyword [en]
Axotomy, astroglia, microglia, neurotrophin, olfactory ensheathing cell, transplantation
National Category
Medical and Health Sciences
Research subject
Neuroscience
Identifiers
URN: urn:nbn:se:uu:diva-63827DOI: 10.1016/S0165-0173(02)00212-6ISI: 000179717400029PubMedID: 12589928OAI: oai:DiVA.org:uu-63827DiVA: diva2:91738
Available from: 2008-10-17 Created: 2008-10-17 Last updated: 2017-11-30Bibliographically approved

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Aldskogius, HåkanKozlova, Elena N.

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