1. Division of Gastroenterology and Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan.
2. Laboratory of Biofunctional Science, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Tokyo, Japan.
3. Life Science Tokyo Advanced Research Center (L-StaR), Hoshi University School of Pharmacy and Pharmaceutical Sciences, Tokyo, Japan.
4. BioMimetics Sympathies, Inc., Tokyo, Japan.