Corticospinal tracts and spinal axons regeneration was investigated by CST and spinal axons anterograded tracing with BDA.

• 、采用不同损伤程度的大鼠脊髓损伤模型，观察后肢运动情况并进行BBB评分，明确大鼠脊髓损伤后后肢运动功能自发性恢复的规律，来进一步探讨脊髓损伤与BBB评分之间的关系。