Funding for this research was provided by:
National Institutes of Health (R01 NS099594)
National Natural Science Foundation of China (81501198)
Received: 12 January 2019
Accepted: 9 July 2019
First Online: 19 July 2019
Ethics approval and consent to participate
: Animal experimental protocols have been approved by the Institutional Animal Care and Use Committees of Thomas Jefferson University and Shanxi Datong University. No human study was performed.
: Not applicable
: The authors declare that they have no competing interests.