Funding for this research was provided by:
National Natural Science Foundation of China (81274116)
Taishan Scholars Construction Project Excellent Innovative Team of Shandong Province
Youth Fund Project of the Affiliated Hospital of Qingdao University
Article History
Received: 28 June 2018
Accepted: 28 August 2018
First Online: 11 September 2018
Compliance with Ethical Standards
: The National Institutes of Health Guide for the Care and Use of Laboratory Animals was used as a guide for the design of all animal-related studies. All animal-related experiments were performed using protocols approved by our institute (The Ethics Committee of Qingdao University Medical College, QUMC 2011-09).
: The authors declare that they have no conflicts of interest.