Fluorescence micrographs of spinal cords stained for GFAP and NFs. Sections taken from the preparation described in Figure 8 were analyzed by immunohistochemical staining for GFAP to delineate the site of injury. Note the gap in staining of the PBS-treated cord (a) compared with the anti-MBP T cell-treated cord (b). Sections were also analyzed for NFs. The gap between the severed ends of axons is smaller in the rat treated with anti-MBP T cells (d) than in the PBS-treated rat (c).