Figure 3

Effects of delayed implantation of PN graft and VR on the survival and axonal regeneration of avulsed motoneurons at 6 weeks post-implantation. (A) Animals with delayed implantation of PN graft. (B) Animals with delayed implantation of VR. (C) The number of regenerating neurons in the VR-implanted animals was significantly higher than that in the PN-implanted animals (*p < 0.001). (D) The survival rate of motoneurons in the VR-implanted animals was significantly higher than that in the PN-implanted animals (*p < 0.05). Scale bar: 200 μm in A and B.