Funding for this research was provided by:
the National Natural Science Foundation of China (81402712)
the outstanding youth grant of Zhengzhou University (1421329082)
the training grant of Zhengzhou University (2017ZDGGJS039)
the grant from Henan Department of Education (14A330001)
the grants from Henan Department of Science and Technology, China (162102310319, 162102310602)
the program of scientific and technological innovation talents of Henan Province (154200510015)
Received: 6 October 2018
Accepted: 13 January 2019
First Online: 29 January 2019
: All experimental procedures were approved by the Life Science Institutional Review Board of Zhengzhou University and performed strictly in accordance with the Guideline of Zhengzhou University for Animal Experiments.
: 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.