Chondroitinase ABC treatment opens a window of opportunity for task-specific rehabilitation.

Abstract:

:Chondroitinase ABC treatment promotes spinal cord plasticity. We investigated whether chondroitinase-induced plasticity combined with physical rehabilitation promotes recovery of manual dexterity in rats with cervical spinal cord injuries. Rats received a C4 dorsal funiculus cut followed by chondroitinase ABC or penicillinase as a control. They were assigned to two alternative rehabilitation procedures, the first reinforcing skilled reaching and the second reinforcing general locomotion. Chondroitinase treatment enhanced sprouting of corticospinal axons independently of the rehabilitation regime. Only the rats receiving the combination of chondroitinase and specific rehabilitation showed improved manual dexterity. Rats that received general locomotor rehabilitation were better at ladder walking, but had worse skilled-reaching abilities than rats that received no treatment. Our results indicate that chondroitinase treatment opens a window during which rehabilitation can promote recovery. However, only the trained skills are improved and other functions may be negatively affected.

journal_name

Nat Neurosci

journal_title

Nature neuroscience

authors

García-Alías G,Barkhuysen S,Buckle M,Fawcett JW

doi

10.1038/nn.2377

subject

Has Abstract

pub_date

2009-09-01 00:00:00

pages

1145-51

issue

9

eissn

1097-6256

issn

1546-1726

pii

nn.2377

journal_volume

12

pub_type

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