[1] Department of Neurology,
[2] Tohoku University School of Medicine,undefined
[3] 1–1 Seiryomachi,undefined
[4] Aobaku,undefined
[5] Sendai 980-77,undefined
[6] Japan Tel.: +81-22-717-7189; Fax: +81-22-717-7192 e-mail: atakeda@neurol.med.tohoku.ac.jp,undefined
[7] Department of Molecular Genetics,undefined
[8] Institute of Development,undefined
[9] Aging,undefined
[10] and Cancer,undefined
[11] Tohoku University,undefined
[12] Sendai,undefined
[13] Japan,undefined
[14] Department of Geriatrics,undefined
[15] Tohoku University School of Medicine,undefined
[16] Sendai,undefined
[17] Japan,undefined
[18] Department of Psychiatry,undefined
[19] National Institute on Alcoholism,undefined
[20] Kurihama National Hospital,undefined
[21] Kanagawa,undefined
[22] Japan,undefined
[23] Department of Neurology,undefined
[24] Kohnan Hospital,undefined
[25] Sendai,undefined
[26] Japan,undefined
[27] Department of Neurology,undefined
[28] National Nishitaga Hospital,undefined
[29] Sendai,undefined
[30] Japan,undefined
[31] Department of Applied Physiology and Molecular Biology,undefined
[32] Tohoku University School of Medicine,undefined
[33] Sendai,undefined
[34] Japan,undefined