1. Department of Radiological Technology, Faculty of Health Sciences, Butsuryo College of Osaka, Otorikitamachi 3-33, Nishi-ku, Sakai, Osaka 593-8328, Japan
2. Laboratory of Biology and Genetics, Faculty of Liberal Arts and Sciences, Osaka Prefecture University, Gakuen-cho 1-1, Nakaku, Sakai, Osaka 599-8531, Japan
3. Japanese Center for AntiAging MedSciences, Mineta 1177, Shobara, Hiroshima 727-0622, Japan