1 Department of Pathophysiology, Graduate School of Medicine, Osaka Metropolitan University (formerly Osaka City University), Osaka, Japan.
2 Department of Hepatology, Graduate School of Medicine, Osaka Metropolitan University (formerly Osaka City University), Osaka, Japan.
3 Department of Pathophysiology, Graduate School of Medicine, Osaka Metropolitan University (formerly Osaka City University), Osaka, Japan; AMED-CREST, Japan Agency for Medical Research and Development (AMED), Tokyo, Japan. Electronic address: naoko.ohtani@omu.ac.jp.