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. 2017 Sep 8;13:1744806917730254. doi: 10.1177/1744806917730254

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© The Author(s) 2017

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (http://www.creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 5. — Photomicrographs (a) and bar graph (b) showing microglia responses in the spinal dorsal horn seven days postoperative. Little Iba1 immunostaining was observed in the Sham group, but the CCI group showed markedly increased Iba1 immunostaining. Iba1-immunostaining microglia proﬁles were characterized by big, thick, and irregular-shaped cytoplasmic and spine ramified processes in the CCI group, and significantly fewer Iba1-immunoreactive microglias were present in the HBO group than in the CCI group. Higher quantities of Iba1-immunoreactive microglias were observed in the K3 group than in the HBO group. *p < 0.05, ns, p > 0.05. n = 4. CCI: chronic constriction injury; HBO: hyperbaric oxygen.