Serum Isoflavone Concentrations and Equol-Producing Intestinal Flora in Prostate Cancer in Japanese-American in Hawaii

Takashi Fukagai^1*, Hideyuki Akaza², Robert Carlile³, John Lederer³, Thomas Namiki⁴, Gertraud Maskarinec⁵, Hirokazu Tsuji⁶, Kaoru Moriyama⁶, Yoshihiko Hirao⁷, Kiyohide Fujimoto⁷, Mikio Namiki⁸, Yoshio Ogawa⁹ and Shiro Hinotsu¹⁰

¹Department of Urology, Showa University Koto Toyosu Hospital, Tokyo, Japan, E-mail: fukagai@med.showa-u.ac.jp

²Department of Strategic Investigation on Comprehensive Cancer Network, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan, E-mail: fukagai@med.showa-u.ac.jp

³Department of Surgery, University of Hawaii, Hawaii, USA, E-mail: fukagai@med.showa-u.ac.jp

⁴Departement of Pathology, University of Hawaii, Hawaii, USA, E-mail: fukagai@med.showa-u.ac.jp

⁵Cancer Center, University of Hawaii, Hawaii, USA, E-mail: fukagai@med.showa-u.ac.jp

⁶Yakult Central Institute, Tokyo, Japan, E-mail: fukagai@med.showa-u.ac.jp

⁷Department of Urology, Nara Medical University, Nara, Japan, E-mail: fukagai@med.showa-u.ac.jp

⁸Department of Integrative Cancer Therapy and Urology, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan, E-mail: fukagai@med.showa-u.ac.jp

⁹Department of Urology, Showa University School of Medicine, Tokyo, Japan, E-mail: fukagai@med.showa-u.ac.jp

¹⁰Center for Innovative Clinical Medicine, Okayama University Hospital, Okayama, Japan, E-mail: fukagai@med.showa-u.ac.jp

^*Corresponding Author: Takashi Fukagai, Department of Urology, Showa University Koto Toyosu Hospital, 5-1-38 Toyosu Koto-ku, Tokyo-135-8577, Japan, Tel: 81362046000, Fax: 81362046998