Baseline characteristics of the North American prodromal Synucleinopathy cohort

Rapid eye movement (REM) sleep behavior disorder (RBD) is widely considered a prodromal synucleinopathy, as most with RBD develop overt synucleinopathy within ~10 years. Accordingly, RBD offers an opportunity to test potential treatments at the earliest stages of synucleinopathy. The North American Prodromal Synucleinopathy (NAPS) Consortium has created a multisite RBD participant, primarily clinic‐based cohort to better understand characteristics at diagnosis, and in future work, identify predictors of phenoconversion, develop synucleinopathy biomarkers, and enable early stage clinical trial enrollment.

[1]  C. Adler,et al.  Biomarkers of conversion to α-synucleinopathy in isolated rapid-eye-movement sleep behaviour disorder , 2021, The Lancet Neurology.

[2]  J. Volkmann,et al.  Consistent skin α-synuclein positivity in REM sleep behavior disorder - A two center two-to-four-year follow-up study. , 2021, Parkinsonism & related disorders.

[3]  C. Chan,et al.  Montreal Cognitive Assessment — Single Cutoff Achieves Screening Purpose , 2020, Neuropsychiatric disease and treatment.

[4]  D. Kunz,et al.  Clinical trials in REM sleep behavioural disorder: challenges and opportunities , 2020, Journal of Neurology, Neurosurgery, and Psychiatry.

[5]  Jonathan E. Elliott,et al.  Post-traumatic stress disorder increases odds of REM sleep behavior disorder and other parasomnias in Veterans with and without comorbid traumatic brain injury. , 2020, Sleep.

[6]  Yves Dauvilliers,et al.  Risk and predictors of dementia and parkinsonism in idiopathic REM sleep behaviour disorder: a multicentre study , 2019, Brain : a journal of neurology.

[7]  Laura Verga,et al.  The risk of neurodegeneration in REM sleep behavior disorder: A systematic review and meta-analysis of longitudinal studies. , 2019, Sleep medicine reviews.

[8]  Charles Mock,et al.  Version 3 of the National Alzheimer’s Coordinating Center’s Uniform Data Set , 2018, Alzheimer disease and associated disorders.

[9]  Yves Dauvilliers,et al.  REM sleep behaviour disorder , 2018, Nature Reviews Disease Primers.

[10]  G. Mancia,et al.  Consensus statement on the definition of neurogenic supine hypertension in cardiovascular autonomic failure by the American Autonomic Society (AAS) and the European Federation of Autonomic Societies (EFAS) , 2018, Clinical Autonomic Research.

[11]  J. Volkmann,et al.  Dermal phospho-alpha-synuclein deposits confirm REM sleep behaviour disorder as prodromal Parkinson’s disease , 2017, Acta Neuropathologica.

[12]  E. Tolosa,et al.  Assessment of α-synuclein in submandibular glands of patients with idiopathic rapid-eye-movement sleep behaviour disorder: a case-control study , 2016, The Lancet Neurology.

[13]  E. Mori,et al.  The Pareidolia Test: A Simple Neuropsychological Test Measuring Visual Hallucination-Like Illusions , 2016, PloS one.

[14]  Tracy K. Witte,et al.  The Posttraumatic Stress Disorder Checklist for DSM-5 (PCL-5): Development and Initial Psychometric Evaluation. , 2015, Journal of traumatic stress.

[15]  E. Tolosa,et al.  Enteric nervous system α-synuclein immunoreactivity in idiopathic REM sleep behavior disorder , 2015, Neurology.

[16]  G. Deuschl,et al.  MDS clinical diagnostic criteria for Parkinson's disease , 2015, Movement disorders : official journal of the Movement Disorder Society.

[17]  B. Boeve,et al.  Antidepressants Increase REM Sleep Muscle Tone in Patients with and without REM Sleep Behavior Disorder. , 2015, Sleep.

[18]  W. Oertel,et al.  Risk factors for neurodegeneration in idiopathic rapid eye movement sleep behavior disorder: A multicenter study , 2015, Annals of neurology.

[19]  Dong Zhou,et al.  Gender differences in REM sleep behavior disorder: a clinical and polysomnographic study in China. , 2015, Sleep medicine.

[20]  J. Molinuevo,et al.  Five‐year follow‐up of substantia nigra echogenicity in idiopathic REM sleep behavior disorder , 2014, Movement disorders : official journal of the Movement Disorder Society.

[21]  R. Rosenberg,et al.  The American Academy of Sleep Medicine Inter-scorer Reliability program: respiratory events. , 2014, Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine.

[22]  R. Postuma,et al.  Antidepressants and REM sleep behavior disorder: isolated side effect or neurodegenerative signal? , 2013, Sleep.

[23]  C Trenkwalder,et al.  Rapid eye movement sleep behavior disorder: devising controlled active treatment studies for symptomatic and neuroprotective therapy--a consensus statement from the International Rapid Eye Movement Sleep Behavior Disorder Study Group. , 2013, Sleep medicine.

[24]  Jacques Montplaisir,et al.  Rapid eye movement sleep behavior disorder as a biomarker for neurodegeneration: the past 10 years. , 2013, Sleep medicine.

[25]  Carlos H Schenck,et al.  Delayed emergence of a parkinsonian disorder or dementia in 81% of older men initially diagnosed with idiopathic rapid eye movement sleep behavior disorder: a 16-year update on a previously reported series. , 2013, Sleep medicine.

[26]  C. Adler,et al.  Clinicopathologic correlations in 172 cases of rapid eye movement sleep behavior disorder with or without a coexisting neurologic disorder. , 2013, Sleep medicine.

[27]  T. Dall,et al.  The current and projected economic burden of Parkinson's disease in the United States , 2013, Movement disorders : official journal of the Movement Disorder Society.

[28]  Poul Jennum,et al.  A single‐question screen for rapid eye movement sleep behavior disorder: A multicenter validation study , 2012, Movement disorders : official journal of the Movement Disorder Society.

[29]  J. Morris,et al.  The diagnosis of dementia due to Alzheimer’s disease: Recommendations from the National Institute on Aging-Alzheimer’s Association workgroups on diagnostic guidelines for Alzheimer's disease , 2011, Alzheimer's & Dementia.

[30]  Jens Jordan,et al.  Consensus statement on the definition of orthostatic hypotension, neurally mediated syncope and the postural tachycardia syndrome , 2011, Clinical Autonomic Research.

[31]  L. Larson-Prior,et al.  Changing demographics in REM sleep behavior disorder: possible effect of autoimmunity and antidepressants. , 2011, Sleep medicine.

[32]  B. Mollenhauer,et al.  Intraindividual variability of REM sleep behavior disorder in Parkinson's disease: a comparative assessment using a new REM sleep behavior disorder severity scale (RBDSS) for clinical routine. , 2011, Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine.

[33]  R. Postuma,et al.  Early treatment benefits of ropinirole prolonged release in Parkinson's disease patients with motor fluctuations , 2010, Movement disorders : official journal of the Movement Disorder Society.

[34]  R. Uitti,et al.  Rasagiline, Parkinson neuroprotection, and delayed-start trials , 2010, Neurology.

[35]  P Sandroni,et al.  Second consensus statement on the diagnosis of multiple system atrophy , 2008, Neurology.

[36]  Tetsuya Takahashi,et al.  Opposite effects of SSRIs and tandospirone in the treatment of REM sleep behavior disorder. , 2008, Sleep medicine.

[37]  O. Foster,et al.  Is REM sleep Behaviour Disorder (RBD) a risk factor of dementia in idiopathic Parkinson's disease? , 2008, Journal of Neurology.

[38]  J. Jankovic,et al.  Movement Disorder Society‐sponsored revision of the Unified Parkinson's Disease Rating Scale (MDS‐UPDRS): Process, format, and clinimetric testing plan , 2007, Movement disorders : official journal of the Movement Disorder Society.

[39]  Julien Doyon,et al.  Rapid-eye-movement sleep behaviour disorder and neurodegenerative diseases , 2006, The Lancet Neurology.

[40]  E. Sinforiani,et al.  REM sleep behavior disorder, hallucinations, and cognitive impairment in Parkinson's disease , 2006, Movement Disorders.

[41]  Johan Marinus,et al.  Assessment of autonomic dysfunction in Parkinson's disease: The SCOPA‐AUT , 2004, Movement disorders : official journal of the Movement Disorder Society.

[42]  R. Petersen Mild cognitive impairment as a diagnostic entity , 2004, Journal of internal medicine.

[43]  R. Chervin Epworth sleepiness scale? , 2003, Sleep medicine.

[44]  A Sahraie,et al.  New Farnsworth-Munsell 100 hue test norms of normal observers for each year of age 5–22 and for age decades 30–70 , 2002, The British journal of ophthalmology.

[45]  M. Badr,et al.  Effect of gender on the development of hypocapnic apnea/hypopnea during NREM sleep. , 2000, Journal of applied physiology.

[46]  J. Cummings,et al.  Validation of the NPI-Q, a brief clinical form of the Neuropsychiatric Inventory. , 2000, The Journal of neuropsychiatry and clinical neurosciences.

[47]  M W Mahowald,et al.  A parasomnia overlap disorder involving sleepwalking, sleep terrors, and REM sleep behavior disorder in 33 polysomnographically confirmed cases. , 1997, Sleep.

[48]  R. Doty,et al.  A study of the test-retest reliability of ten olfactory tests. , 1995, Chemical senses.

[49]  M. Mahowald,et al.  Prominent eye movements during NREM sleep and REM sleep behavior disorder associated with fluoxetine treatment of depression and obsessive-compulsive disorder. , 1992, Sleep.

[50]  M. Johns,et al.  A new method for measuring daytime sleepiness: the Epworth sleepiness scale. , 1991, Sleep.

[51]  Diane Podsiadlo,et al.  The Timed “Up & Go”: A Test of Basic Functional Mobility for Frail Elderly Persons , 1991, Journal of the American Geriatrics Society.

[52]  M W Mahowald,et al.  Chronic behavioral disorders of human REM sleep: a new category of parasomnia. , 1986, Sleep.

[53]  P. Lavie,et al.  Severe hypermotility during sleep in treatment of cataplexy with clomipramine. , 1979, Israel journal of medical sciences.

[54]  J. Tiffin,et al.  The Purdue pegboard; norms and studies of reliability and validity. , 1948, The Journal of applied psychology.

[55]  Dean Farnsworth,et al.  The Farnsworth-Munsell 100-Hue and Dichotomous Tests for Color Vision* , 1943 .

[56]  Ambra Stefani,et al.  Idiopathic REM sleep behaviour disorder and neurodegeneration — an update , 2018, Nature Reviews Neurology.

[57]  A. Chesson,et al.  The AASM Manual for the Scoring of Sleep and Associated Events: Rules, Terminology, and Techinical Specifications , 2007 .

[58]  Johan Marinus,et al.  A short psychosocial questionnaire for patients with Parkinson's disease: the SCOPA-PS. , 2003, Journal of clinical epidemiology.