Funding for this research was provided by:
Japan Society for the Promotion of Science (16H04722, 26292178, 15K14503)
Japan Agency for Medical Research and Development (18fk0108009h0003)
Received: 28 September 2018
Accepted: 12 December 2018
First Online: 9 January 2019
: All animal experiments in this study were performed under the applicable laws and guidelines for the care and use of laboratory animals, as specified in the Fundamental Guidelines for Proper Conduct of Animal Experiment and Related Activities in Academic Research Institutions under the jurisdiction of the Ministry of Education, Culture, Sports, Science and Technology, Japan, 2006. They were approved by the Animal Experiment Committee of the University of Miyazaki under approval no. 2009-506-6.
: Not applicable.
: The authors declare that they have no competing interests.
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