Funding for this research was provided by:
JSPS KAKENHI (19K12347)
Health and Labour Sciences Research Grant (H30-food-general-003)
Received: 12 March 2021
Accepted: 27 May 2021
First Online: 23 June 2021
: The animal experiments in this study were approved by the institutional animal care and use committee and followed recommendations for the handling, maintenance, treatment and sacrificing of the animals.
: Not applicable.
: SF, SY, HT are employed person in the company breeding and supplying <i>gpt</i> delta transgenic rodents. No conflict of interest for other authors.