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. 2018 Aug 20;38:13. doi: 10.1186/s41232-018-0071-z

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© The Author(s) 2018

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 — Effects of linagliptin treatment on LPS-induced tumor necrosis factor (TNF)-α production after 24 h. Human U937 monocytes were treated with LPS and/or linagliptin. TNF-α levels in the supernatants were determined via ELISA after 24 h of treatment. *P < 0.001 vs. control; †P < 0.01 vs. LPS 1 μg/mL; ‡P < 0.0001 vs. LPS 1 μg/mL. Lina, linagliptin