Fig. 4
An example of ATF3 and CGRP staining in L5 DRGs 2 weeks after spinal nerve section. a L5i ganglion showing no CGRPr in ATF3 positive cells. CGRP axons were visible in the tissue (arrows) but the characteristic punctate staining in the cell cytoplasm is absent. b Contralateral ganglion showing many CGRP-ir cells (arrows). The curved arrow shows an example of an ATF3+/CGRP− cell. Scale bar = 50 μm