To establish dorsal root ganglion(DRG)resection model,in which the sensory nerve fibers were selectively degenerated while the motor nerve fibers remained intact and unaffected and to provide a effective method for quantitative evaluation of selective regeneration of peripheral nerve,20 SD rats were randomly divided into 2 groups,with 10 rats in each group.

Objective To observe the effects of Edaravoneon on survival of sensory neurons in rat spinal dorsal root ganglions and the antagonistic effect of Edaravoneon on excitatory neurotoxicity induced by glutamate.

Experimental study of protective effect of local infiltration of methylprednisolone on injured spinal nerve root;

Morphological observation of thoroclumbar spinal nerve root sheath and its clinical significance;

The survey on lumbar lateral recessus and spinal nerve root and its clinical significance

Anatomical observation on the cervical intervertebral formamen and their spinal nerve roots;

Effects of epidural administration of 60 g/L hetastarch on spinal cord and spinal nerve roots in rats;

The results showed that the segments of spinal cord corresponding with T12 and L1 vertebra were L2~5 and S1~Co respectively, and that the spinal nerve roots corresponding T12 and L1 vertebra were T 12-L5 and L1~Co respectively.

Effect of pulsed radiofrequency treatment of the lumbosacral dorsal root on cytokines;

The release of SP and CA in the region deminated by dorsal root was examined by using the methods of cutting dorsal root, stimulating the distal end, dissociating the governed skin, collecting and determining the dermic perfusing liquid.