1. Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Gokasho, Kyoto, 611-0011, Japan
2. Graduate School of Comprehensive Rehabilitation, Osaka Prefecture University, Osaka, 583-8555, Japan
3. Department of Neurology, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
4. Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark