1. Department of Molecular Cell Physiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
2. Japan Institute for Food Education and Health, Heian Jogakuin (St. Agnes') University, Kyoto 602-8013, Japan
3. Shin-Koiwa Clinic, Tokyo 124-0023, Japan
4. Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
5. Department of Physiology, Osaka Medical College, Takatsuki 569-8686, Japan