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. 2017 May 12;24:31. doi: 10.1186/s12929-017-0334-z

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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. 3 — PCNA immunoreactivity. a Quantification of PCNA immunoreactivity. b T8 group (inset: negative control). c: TC12 group. d TN12 group. e TC16 group. f TN16 group. g TC22(8–12) group. h TN22(8–12) group. i TC22(12–16) group. j TN22(12–16) group. PCNA-positive staining is indicated by arrow in the nucleus. Values expressed as media or maximum media values and compared between treated and its respective control group. *p < 0.05. Ep = epithelium; St = stroma; L = lumen. Counter-stain: Harris Hematoxylin. 400x, bar = 100 μm