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. 2014 Jun 18;8:51. doi: 10.3389/fnint.2014.00051

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Copyright © 2014 Carmel and Martin.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Partial restoration of the normal axon distribution on the impaired side of the spinal cord. (A,B) Heatmaps of corticospinal tract axon length for rats with injury only (A) and combined injury and stimulation (B). Intensity scales in (A) also apply to (B). Note, the axon length scales are different on the two sides to show the full range on each side. (C) Stimulation induced outgrowth is shown as the pixel-by-pixel ratio of injury and stimulation rats to injury only rats expressed as fold-change. The arrowhead indicates a hot spot of stimulation-induced outgrowth on the ipsilateral side in the deep dorsal horn. (D) Quantification of corticospinal axon length for the contralateral and ipsilateral sides (^*p < 0.05). (A–D) were modified from Carmel et al. (2013).