摘要
Somatosensory and corticomotor evoked potentials (SSEP, CMEP) of the rats with acutely injured spinal cord were determined on the 7th, 15th, 30th, 60th, 120th and 240th day after they received implantation of the embryonic spinal cord from 14-day rat embryo into the injured cord. The motor functions of the hindlimbs were also observed. The rats with acute spinal cord injury and those with cord injury treated with the implantation of a piece of skeletal muscle served as the controls. It was found that the motor functions were recovered on the 30th day after implantation but the latent period of both SSEP and CMEP returned to mormal on the 240th day. At that time,the latent period of SSEP and CMEP of the 2 control groups also recovered gradually. It is believed that embryonic spinal cord implantation can affect the recovery of the motor functions of the rats. But more sophisticated methods are needed to clarify the interrelationship of the host cord with the grafts.
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