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. 2017 Jan 12;5:e2858. doi: 10.7717/peerj.2858

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©2017 Dai et al.

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited.

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(A) Representative photomicrographs of fibroblast apoptosis in rats. The number of apoptotic fibroblasts increased as the concentration of HCPT increased, which showed that HCPT could induce the apoptosis of fibroblasts in rats in a dose-dependent manner. (B) The rate of TUNEL-positive fibroblasts is expressed in the bar graph. *P < 0.05 versus the control group.