Coronal sections through the medial septal region processed for p75NGFR (A,C,E) and ChAT immunohistochemistry (B,D,F) are shown 4 weeks following unilateral (right) aspirative lesions of the fimbria-fornix. A,B: Representative serial sections for a lesioned animal ipsilaterally grafted with FF/NGF at the time of lesion. C,D: FF/BDNF graft. E,F: FF/β-gal graft. Scale bar = 0.5 mm.