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. 2017 Jul 14;7:5422. doi: 10.1038/s41598-017-05880-2

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© The Author(s) 2017

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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Histopathological changes in rat testes with arterial ischaemia (AI) and venous congestion (VC) and after their reperfusion. A: (a) Control. (b) 6 h after AI. (c) 6 h after VC. (d) control after 4 weeks. (e) 4 weeks after reperfusion of AI. (f) 4 weeks after reperfusion of VC. Interstitium area in (c) showing the haemorrhage. Bar = 50 μm. B: Degrees of spermatogenesis at 4 weeks after reperfusion of AI or VC. Data are expressed as means ± standard deviation, and the two-way analyses of variance and Tukey–Kramer tests were used for statistical analyses. P > 0.05 was considered as indicating nonsignificant differences. **P < 0.01.