1. Department of Molecular Cell Physiology; Kyoto Prefectural University of Medicine; 465 Kajiicho Kamigyo-ward Kyoto 602-8566 Japan
2. Department of Physiology; Osaka Medical College; 2-7 Daigakumachi Takatsuki 569-8686 Japan
3. Biotech Research and Innovation Centre; University of Copenhagen; Ole Maaløes Vej 5 DK-2200 Copenhagen N Denmark
4. Department of Molecular Cell Biology and Oral Anatomy; Kyushu University; 3-1-1 Maidashi, Higashi-ward Fukuoka 812-8582 Japan
5. Department of Anatomy and Physiology; Saga University; 5-1-1 Nabeshima Saga 849-8501 Japan
6. Department of Bio-Ionomics; Kyoto Prefectural University of Medicine; 465 Kajiicho Kamigyo-ward Kyoto 602-8566 Japan