Funding for this research was provided by:
National Natural Science Foundation of China (31772460)
Natural Science Foundation of Hainan Province (20164158)
scientific research foundation of Hainan University (kyqd1554)
Article History
Received: 27 June 2018
Accepted: 6 September 2018
First Online: 10 September 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All applicable international, national, and/or institutional guidelines for the care and use of animals were followed. All the experiments were conducted according to the regulations of local and central government, and the study protocol was approved by Hainan University.