1. Department of Metabolism and Endocrinology, Tokyo Medical University Ibaraki Medical Center, Ibaraki, Japan;
2. Department of Pathology, SASAKI Institute, Kyoundo Hospital, Tokyo, Japan;
3. Department of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University, Ehime, Japan;
4. Department of Neurology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan