1. Department of Regulatory Physiology; Dokkyo Medical University School of Medicine; Tochigi; 321-0293; Japan
2. Department of Physiology; Gifu University Graduate School of Medicine; Gifu; 501-1194; Japan
3. Department of Environmental Health; Nara Women's University; Nara; 630-8506; Japan
4. Division of Environment System Management, Faculty of Symbiotic System Science; Fukushima University; Fukushima; 960-1296; Japan
5. Center for Integrative Physiology; National Institute for Physiological Sciences; Okazaki; 444-8787; Japan