Figure 4: Comparison of PSA-NCAM levels in right dentate gyrus of sham and severe injury animals 48 hours following surgery. PSA-NCAM staining of subgranular zone cells in the contralateral hippocampus reveals more intense expression in the soma (arrows) and processes (arrow heads) of sham (a) versus severe (b) injury animals. Images are 40(x) magnification; scale bar = 100 μm.