Figure 3.
(A,B) Immunofluorescence photomicrographs stained with ATF3 antibodies showing spinal motoneurons (MN) after ventral root avulsion followed by direct ventral root replantation (VRR) at 5 weeks post-operative survival time. (C) Unlesioned motoneurons located on the corresponding contra-lateral side (CL). A shows a longitudinal section of the lesion side from the spinal cord segments L5-6. The area depicted in (A) displays the area from which the motoneurons in (B) originate. Arrows indicate motoneurons sectioned in the nuclear plane. Note all the labeled motoneurons in (A,B). If no VRR is made the large majority of motoneurons will not survive 3 weeks. Scale bar 500 μm (A) and 50 μm (B,C).
