Funding for this research was provided by:
National Natural Science Foundation of China (81372506, 81802512)
full-time post-doctoral research and development foundation of Sichuan University (2018SCU12034)
the project of Science and Technology Department of Sichuan Province (2018FZ0115)
Received: 16 May 2018
Accepted: 15 February 2019
First Online: 21 February 2019
: All procedures performed in studies involving animals were in accordance with the ethical standards of the Institutional Animal Care and Use Committee of Sichuan University and were approved by this committee (Permit Number: 2018125A).
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.