| Enhancing recovery from peripheral nerve injury using treadmill training. | |
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MedLine Citation:
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PMID: 21498059 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Full functional recovery after traumatic peripheral nerve injury is rare. We postulate three reasons for the poor functional outcome measures observed. Axon regeneration is slow and not all axons participate. Significant misdirection of regenerating axons to reinnervate inappropriate targets occurs. Seemingly permanent changes in neural circuitry in the central nervous system are found to accompany axotomy of peripheral axons. Exercise in the form of modest daily treadmill training impacts all three of these areas. Compared to untrained controls, regenerating axons elongate considerably farther in treadmill trained animals and do so via an autocrine/paracrine neurotrophin signaling pathway. This enhancement of axon regeneration takes place without an increase in the amount of misdirection of regenerating axons found without training. The enhancement also occurs in a sex-dependent manner. Slow continuous training is effective only in males, while more intense interval training is effective only in females. In treadmill trained, but not untrained mice the extent of coverage of axotomized motoneurons is maintained, thus preserving important elements of the spinal circuitry. |
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Authors:
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Arthur W English; Jennifer C Wilhelm; Manning J Sabatier |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural; Review Date: 2011-03-12 |
Journal Detail:
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Title: Annals of anatomy = Anatomischer Anzeiger : official organ of the Anatomische Gesellschaft Volume: 193 ISSN: 1618-0402 ISO Abbreviation: Ann. Anat. Publication Date: 2011 Jul |
Date Detail:
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Created Date: 2011-07-15 Completed Date: 2011-10-05 Revised Date: 2012-09-18 |
Medline Journal Info:
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Nlm Unique ID: 100963897 Medline TA: Ann Anat Country: Germany |
Other Details:
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Languages: eng Pagination: 354-61 Citation Subset: IM |
Copyright Information:
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Copyright © 2011 Elsevier GmbH. All rights reserved. |
Affiliation:
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Department of Cell Biology, Emory University School of Medicine, 615 Michael Street, Atlanta, GA 30322, USA. medae@emory.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Axons / physiology Central Nervous System / physiology Female Male Mice Nerve Growth Factors / physiology Nerve Regeneration / physiology* Neuronal Plasticity / physiology Peripheral Nerve Injuries* Peripheral Nerves / physiology* Physical Conditioning, Animal / methods, physiology* Rats Running / physiology Sex Factors Time Factors |
| Grant Support | |
ID/Acronym/Agency:
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K12GM000680/GM/NIGMS NIH HHS; NS057190/NS/NINDS NIH HHS; R01 NS057190-01/NS/NINDS NIH HHS |
| Chemical | |
Reg. No./Substance:
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0/Nerve Growth Factors |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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