1. Department of Biosignaling and Radioisotope Experiment, Interdisciplinary Center for Science Research, Head Office for Research and Academic Information, Shimane University, 89-1 Enya-cho, Izumo 693-8501, Japan
2. Laboratory of Molecular Biology, Science Research Center, Kochi Medical School, Kochi University, Oko-cho, Kohasu, Nankoku 783-8505, Japan
3. Division of Innovative Medicine for Hepatobiliary & Pancreatology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan