[1] Osaka Univ, Grad Sch Med, Dept Cardiovasc Med, Suita, Osaka, Japan
[2] Univ Shizuoka, Grad Sch Pharmaceut Sci, Dept Med Biochem, Shizuoka 4228526, Japan
[3] Niigata Univ, Grad Sch Med & Dent Sci, Div Cardiol, Niigata, Japan
[4] Natl Cardiovasc Ctr, Div Cardiovasc Med, Suita, Osaka 565, Japan