Objective to observe the role of platelet-derived growth factor-B (PDGF-B) in the regeneration of peripheral nerve by studying its expression on injured rat sciatic nerves.

Horseradish peroxidase was used to label the regenerative axons of peroneal nerves 4 or 9 weeks after epineurial or Perineurial suture or nerve grafting in sciatic nerves in rats.

Objective: to investigate the autophagic role of neuron axon during regeneration of rat sciatic nerves.