O2-6-08. Mechanism of forelimb motor function restoration after cervical spinal cord hemisection in rats: Electorophysiological verification

The objective of this study was to electrophysiologically assess corticospinal tracts of adult rats and recovery of motor function of their forelimbs after cervical cord hemisection. Of 39 adult rats used, compound muscle action potentials (CMAPs) of forelimbs of 15 rats were evaluated, before they received left C5 segmental hemisection of the spinal cord, by stimulating the pyramid of medulla oblongata on one side using an exciting microelectrode. All 15 rats exhibited contralateral electrical activity, but their CMAPs disappeared after hemisection.

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