Document Detail


Motor evoked potentials in a mouse model of chronic multiple sclerosis.
MedLine Citation:
PMID:  16307439     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We tested cortical motor evoked potentials (cMEPs) as a quantitative marker for in vivo monitoring of corticospinal tract damage in a murine multiple sclerosis model (experimental autoimmune encephalomyelitis, EAE). The cMEPs, previously standardized in naive C57BL/6 developing and adult mice, were studied longitudinally in adult EAE mice. Central conduction times (CCTs) increased significantly shortly before the earliest clinical signs developed (10 days postimmunization, dpi), with peak delay in acute EAE (20-40 dpi). In clinically stable disease (80 dpi), CCTs did not increase further, but cMEP amplitude declined progressively, with complete loss in >80% of mice at 120 dpi. Increase in CCT correlated with presence of inflammatory infiltrates and demyelination in acute EAE, whereas small or absent cMEPs were associated with continuing axonal damage in clinically-stabilized disease and beyond (>80 dpi). These results demonstrate that cMEPs are a useful method for monitoring corticospinal tract function in chronic-progressive EAE, and provide insight into the pathological substrate of the condition.
Authors:
Stefano Amadio; Stefano Pluchino; Elena Brini; Paolo Morana; Roberta Guerriero; Filippo Martinelli Boneschi; Giancarlo Comi; Paola Zaratin; Valeria Muzio; Ubaldo del Carro
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Muscle & nerve     Volume:  33     ISSN:  0148-639X     ISO Abbreviation:  Muscle Nerve     Publication Date:  2006 Feb 
Date Detail:
Created Date:  2006-01-23     Completed Date:  2006-04-11     Revised Date:  2012-02-16    
Medline Journal Info:
Nlm Unique ID:  7803146     Medline TA:  Muscle Nerve     Country:  United States    
Other Details:
Languages:  eng     Pagination:  265-73     Citation Subset:  IM    
Affiliation:
Department of Neurology and Clinical Neurophysiology, San Raffaele Scientific Institute, Università Vita e Salute, Milan, Italy.
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MeSH Terms
Descriptor/Qualifier:
Animals
Central Nervous System / physiopathology
Chronic Disease
Demyelinating Autoimmune Diseases, CNS / physiopathology
Demyelinating Diseases / physiopathology
Disease Models, Animal
Disease Progression
Electric Stimulation
Encephalomyelitis, Autoimmune, Experimental / physiopathology*
Evoked Potentials, Motor*
Female
Mice
Mice, Inbred C57BL
Multiple Sclerosis / physiopathology*
Nerve Degeneration
Neural Conduction*
Pyramidal Tracts / physiopathology
Time Factors

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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