1. Experimental Animal Division, Bioscience Education and Research Support Center, Akita University, Akita, Akita, Japan
2. Department of Cell Physiology, Akita University Graduate School of Medicine, Akita, Akita, Japan
3. School of Materials Science, Japan Advanced Institute of Science and Technology, Nomi, Ishikawa, Japan
4. Joto Clinic of Internal Medicine, Akita, Akita, Japan
5. National Institute for Physiological Sciences, Okazaki, Aichi, Japan
6. Center for Experimental Animals, National Institutes of Natural Sciences, Okazaki, Aichi, Japan