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. 2020 Feb 28;10:234. doi: 10.3389/fonc.2020.00234

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Copyright © 2020 Li, Li, Huang, Xu, Zheng, Hamsath, Zhang, Dai, Zhang, Wong, Xian, Yang and Liu.

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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H₂S removing efficiency and cell toxicity of the indicated H₂S scavengers. (A) After adding 100 μM Na₂S, the same amount of indicated H₂S scavengers, including Zn(OAc)₂, CuSO₄, FeCl₃ and VitB₁₂, were added, respectively. The content of H₂S molecule was monitored with a Unisense H₂S microsensor. (B–C) A549 cells were treated with increasing concentration of Zn(OAc)₂ (B) or CuSO₄ (C) for 24 h. The cell number was measured with CCK-8 assay. Data are shown as the mean ± SD. n = 4. *P < 0.05, **P < 0.01 vs. Control group.