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. 2017 Jan 31;16:26. doi: 10.1186/s12944-016-0401-6

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© The Author(s). 2017

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided 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 Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 2 — Morphologic changes of hippocampus stained by Nissl staining using a light microscope (magnification 400×) and counting the results. a Nissl staining of region CA1 of hippocampus in different groups. b Nissl staining of region CA3 of hippocampus in different groups. c The number of neurons per field in regions CA1 and CA3 of hippocampus. n=20, values are expressed as the mean ± SD. Bars without a common superscript letter differ significantly (P < 0.05)