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. 2021 Jan 28;8:618228. doi: 10.3389/fcell.2020.618228

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Copyright © 2021 Lin, Zhu, Xu, Zhong, Li, Shan, Wu, Guo, Zheng, Wang, Xu, Liao, Lu, Xie and Yuan.

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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The characteristics of exosomes. (A) The morphology of exosomes was observed by TEM. The arrows indicated the exosomes. The scale bar was 500 nm. n = 3. (B) The diameter distribution of exosomes was measured by a molecular size analyzer. (C) Exosomes markers CD9, CD63, and CD81 were detected by western blot. The representative images were shown. TEM: transmission electron microscope; Nor-Ex, the plasma exosomes derived from normal health control; ESRD-Ex, the plasma exosomes derived from ESRD patients; RTR-Ex, the plasma exosomes derived from renal transplant recipients.