Funding for this research was provided by:
National Institute of Neurological Disorders and Stroke (NS38377, R21NS098006, NS082205)
Maryland Stem Cell Research Fund (2012-MSCRFE-0059)
Received: 14 March 2018
Accepted: 19 April 2018
First Online: 27 April 2018
Ethics approval and consent to participate
: All experimental procedures were in accordance with the guidelines of Laboratory Animal Manual of National Institute of Health Guide for the Care and Use of Animals. All animal experiments were complied with the current laws of the United States. They were approved by the Johns Hopkins Medical Institute Animal Care and Use Committee.
: The authors declare that they have no competing interests.
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