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. 2020 Oct 1;21:71. doi: 10.1186/s40360-020-00449-8

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© The Author(s) 2020

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. 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 in a credit line to the data.

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Fig. 7 — Histopathology of mice hearts by hematoxyline and eosinophil staining. Vertical rows represent the control, CTD,L-glutamine 1 mg·kg-1 + CTD and L-glutamine 2 mg·kg-1 + CTD group mice heart, respenctly. Horizontal row represent the same tissue with different scale bar as 500 μm, 100 μm and 50 μm, respectively. As the image of CTD group (Fig. 7f), yellow arrow represents myocardial interstitial hyperemia, and black arrow represents inflammation