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  • Ronald B. Postuma, Isabelle Arnulf, +17 authors Jacques Y Montplaisir
  • Psychology, Medicine
  • Movement disorders : official journal of the…
  • 2012 (First Publication: 1 June 2012)
  • BACKGROUND Idiopathic rapid eye movement (REM) sleep behavior disorder (RBD) is a parasomnia that is an important risk factor for Parkinson's disease (PD) and Lewy body dementia. Its prevalence isExpand
  • Tomoyuki Miyamoto, Masayuki Miyamoto, Keisuke Suzuki, Momoka Nishibayashi, Masaoki Iwanami, Koichi Hirata
  • Medicine, Psychology
  • Sleep
  • 2008 (First Publication: 1 May 2008)
  • OBJECTIVE RBD is considered to be a manifestation of an evolving synucleinopathy, such as Parkinson disease (PD), dementia of Lewy bodies (DLB), and multiple system atrophy (MSA). We tested whetherExpand
  • Momoka Nishibayashi, Masayuki Miyamoto, Tomoyuki Miyamoto, Keisuke Suzuki, Koichi Hirata
  • Medicine
  • Journal of clinical sleep medicine : JCSM…
  • 2008 (First Publication: 15 June 2008)
  • STUDY OBJECTIVES We investigated the prevalence of silent cerebrovascular lesions in patients with obstructive sleep apnea (OSA) and the correlation between OSA severity and prevalence of silentExpand
  • Haruo Hanyu, Yuichi Inoue, +5 authors Toshihiko Iwamoto
  • Medicine, Psychology
  • Parkinsonism & related disorders
  • 2012 (First Publication: 1 February 2012)
  • PURPOSE Rapid eye movement (REM) sleep behavior disorder (RBD) is considered to result from dysfunction of the brain stem structures that regulate REM sleep. In this study, we investigated structuralExpand
  • Ayaka Numao, Keisuke Suzuki, Masayuki Miyamoto, Tomoyuki Miyamoto, Koichi Hirata
  • Psychology, Medicine
  • Parkinsonism & related disorders
  • 2014 (First Publication: 1 February 2014)
  • BACKGROUND Recently, increased serum insulin-like growth factor-1 (IGF-1) levels have been reported in patients with Parkinson's disease (PD) and multiple system atrophy (MSA). OBJECTIVE To assessExpand
  • Keisuke Suzuki, Yasuyuki Okuma, +8 authors Koichi Hirata
  • Psychology, Medicine
  • Movement disorders : official journal of the…
  • 2007 (First Publication: 15 July 2007)
  • The present multicenter cross-sectional study was performed using semistructured questionnaires to determine the contributing factors of sleep disturbances in Japanese patients with Parkinson'sExpand
  • Keisuke Suzuki, Tomoyuki Miyamoto, +10 authors Koichi Hirata
  • Medicine
  • BMC Neurology
  • 2013 (First Publication: 9 February 2013)
  • BackgroundIncreasing evidence provides a clear association between rapid eye movement sleep behavior disorders (RBD) and Parkinson’s disease (PD), but the clinical features that determine theExpand