Funding for this research was provided by:
National Natural Science Foundation of China (81430035, 81771305, 81571168, 81870955)
Received: 28 January 2019
Revised: 18 September 2019
Accepted: 24 September 2019
First Online: 15 November 2019
Ethics approval and consent to participate
: All animal handling and experimental procedures were performed in accordance with the guidelines of the Care and Use of Laboratory Animals published by the China National Institute of Health.
: Not applicable
: The authors declare that they have no competing interests.