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. 2020 Mar 10;14:210. doi: 10.3389/fnins.2020.00210

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Copyright © 2020 Han, Chai, Ping, Song, Ma, Ruan and Jin.

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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Changes in venous diameter and RBC velocity after mTBI. (A) Representative images of cerebral veins at different time points after mTBI of the sham and injury groups. There seems a small decrease in vein diameter within 0.5–1 h post-mTBI, which recovered to baseline level in one day. (B) There was a significant decrease in venous diameter at 1 h after mTBI (p < 0.05), but insignificant changes at other time points (p > 0.05). (C) The changes in venous RBC velocity were similar with the changes in vein diameter: a significant decrease in venous RBC velocity occurred at 0.5 h (p < 0.05) post-mTBI, which recovered in 1 h to 1 day post-mTBI. *p < 0.05.