Objective: To explore the role of platelet derived growth factor-B(PDGF-B)on spinal cord functional reco-very after acute spinal cord injury(SCI)in rats.

• 目的:探讨血小板衍化生长因子-B(PDGF-B)在脊髓损伤(SCI)后对脊髓功能恢复的作用。