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. 2019 Dec 27;9:20017. doi: 10.1038/s41598-019-56436-5

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© The Author(s) 2019

Open Access This 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/.

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Macroscopic heart sections from the acute (left panels) and chronic (right panels) myocardial infarction groups. Upper panels (a,b): Area at risk corresponds to tissue stained with thioflavin-S (light blue). Lower panels (c,d): The infarcted tissue corresponds to 2,3,5-Triphenyltetrazolium non-stained myocardium. Samples were obtained from the acute (c: I-infarct, II-remote) and chronic infarct models (d: III-infarct and IV-remote) and stained with haematoxylin-eosin.