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. 2019 Aug 22;20:21. doi: 10.1186/s12867-019-0135-x

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© The Author(s) 2019

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 — Expressions of TGF-β₁, collagen I, and collagen III at the mRNA and protein levels in different experimental groups. The mRNA levels of a TGF-β₁, b collagen I, and c collagen III were quantified by a qRT-PCR analysis. d The protein levels of TGF-β₁, collagen I, and collagen III were determined by a western blot assay. β-actin was used as a loading control. The data were presented as the mean ± SEM (n = 3). *p < 0.05, **p < 0.01 (compared with the NG group), ^#p < 0.05, ^##p < 0.01 (compared with the HG Control group)