Funding for this research was provided by:
the National Natural Science Foundation of China (31372481)
the Innovative Support Program for Young Teachers in Universities of Tibet (QC2015-77)
Received: 17 November 2017
Accepted: 29 January 2018
First Online: 2 February 2018
: With regards to our study’s use of animals, this study protocol was reviewed and approved by the Henan Agriculture University animal ethics committee, and the experiment was performed in accordance with the regulations and guidelines established by this committee. For experiments involving human participants, this study was approved by the Chinese Academy of Sciences human ethics committee, and was carried out strictly in accordance with the approved guidelines. Informed consent was obtained from the hospital.
: 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.