[1] Toyama Med & Pharmaceut Univ, Dept Urol, Toyama 9300194, Japan
[2] Toyama Med & Pharmaceut Univ, Dept Pathogen Biochem, Inst Nat Med, Toyama 9300194, Japan
[3] Toyama Med & Pharmaceut Univ, Century COE Program 21, Toyama 9300194, Japan
[4] Hokkaido Univ, Grad Sch Pharmaceut Sci, Dept Immunol, Kita Ku, Sapporo, Hokkaido, Japan