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. 2020 Oct 15;11:552569. doi: 10.3389/fphys.2020.552569

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Copyright © 2020 Prasad, Sedlářová, Balukova, Ovsii, Rác, Křupka, Kasai and Pospíšil.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Fluorescence images of U937 cell culture in the absence (left panel) and under the effect of 5 mM hydrogen peroxide (H₂O₂) added exogenously. Acridine orange/propidium iodide staining was used for staining the cells.