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. 2017 Oct 30;7:14323. doi: 10.1038/s41598-017-14331-x

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© The Author(s) 2017

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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The effect of single guidance cues on the regeneration of motor and sensory neurons. (A) Schematic of the longitudinal section of the ventral spinal cord showing fluorogold positive cells (white arrows) (B) Quantification of FG+ cell in each of the split Y-nerve. GDNF had a significantly higher number of regenerated motor neurons compared to BSA. (C) Schematic of DRG soma size distribution and representative image of fluorogold positive cells of varying size. (D) Quantification of the total number of FG+ sensory neurons. (E) Single guidance cues did not significantly alter the sensory to motor ratio. (F–H) Distribution of small to large sensory neuron soma sizes showed no difference between the neurotrophic factor loaded microparticles and BSA loaded microparticles. Data represented as mean ± SEM. (*P ≤ 0.05). NA represents groups with failed retrograde tracing using FluoroRuby. (N = 3–6 animals/group).