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. 2017 Nov 10;8:259. doi: 10.1186/s13287-017-0699-7

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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. 9 — Representative photomicrographs of lung parenchyma stained after TUNEL assay (a) in the C-Sal, SIL-Sal, SIL-BMMC-healthy, and SIL-BMMC-sil groups. Apoptotic cells (arrows) were quantified in (b) lung parenchyma and (c) granuloma. n = 4 animals in each group. Scale bars, 100 μm. ^*Significantly different from C-Sal (P < 0.05). ^#Significantly different from SIL-Sal (P < 0.05). BMMCs bone marrow mononuclear cells, C control, Sal saline, SIL silicotic mice, sil treated with BMMCs derived from silicotic donors