Funding for this research was provided by:
National Natural Science Foundation of China (No.81170255)
the National Science and Technology Major Project (No.2012ZX09102301-017)
Received: 19 June 2017
Accepted: 8 January 2018
First Online: 15 January 2018
Ethics approval and consent to participate
: All animal tests and experimental protocols were approved by the Administration Committee of Experimental Animals in Beijing and the Animal Ethics Committee of Beijing Institute of Basic Medical Sciences (Beijing, China). All experimental procedures were carried out in accordance with the US National Institute of Health (NIH) Guide for the Care and Use of Laboratory Animals (ExternalRef removed).
: Not applicable
: The authors declare that they have no competing interests.
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