Funding for this research was provided by:
This study was supported by research grants from the Ministry of Education, Culture, Sports, Science and Technology of Japan (MEXT; Grants-in-Aid 16K10432)
Received: 19 February 2018
Accepted: 25 January 2019
First Online: 8 February 2019
: All experiments were performed according to the guidelines of the Institutional Animal Committee of Kumamoto University (Approval number: A 28–041) and National Research Institute for Child Health and Development (Approval number: A 2008–004). This study also followed the guidelines of Animal Research: Reporting of In Vivo Experiments (ARRIVE) guidelines.
: Not applicable.
: The authors declare that they have no competing interests.
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