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REM sleep behavior disorder

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https://www.readbyqxmd.com/read/29665124/how-does-dementia-with-lewy-bodies-start-prodromal-cognitive-changes-in-rem-sleep-behavior-disorder
#1
Daphné Génier Marchand, Ronald B Postuma, Frédérique Escudier, Jessie De Roy, Amélie Pelletier, Jacques Montplaisir, Jean-François Gagnon
Objective We describe the progression of cognitive decline and identify the predictive values of cognitive tests in three groups of REM sleep behavior disorder (RBD) patients classified at their last follow-up as having Parkinson's disease (PD), dementia with Lewy bodies (DLB), or still-idiopathic. Methods Patients (n=109) underwent polysomnographic, neurological, and neuropsychological assessments. We used linear mixed-model analyses to compare the progression of cognitive test performance between the three groups over a three-year prodromal period, and performed linear regressions for a six-year prodromal period...
April 17, 2018: Annals of Neurology
https://www.readbyqxmd.com/read/29664048/effect-of-rapid-eye-movement-sleep-behavior-disorder-on-obstructive-sleep-apnea-severity-and-cognition-of-parkinson-s-disease-patients
#2
Jun-Ying Huang, Jin-Ru Zhang, Yun Shen, Hui-Jun Zhang, Yu-Lan Cao, Cheng-Jie Mao, Ya-Ping Yang, Jing Chen, Chun-Feng Liu, Jie Li
Background: Rapid eye movement (REM) sleep behavior disorder (RBD) and obstructive sleep apnea (OSA) are the most common sleep disorders in Parkinson's disease (PD). The aim of this study was to identify whether RBD could alleviate OSA severity in PD patients and its effect on cognitive impairment. Methods: From February 2014 to May 2017, we recruited 174 PD patients from the Second Affiliated Hospital of Soochow University, all of whom underwent polysomnography (PSG)...
April 20, 2018: Chinese Medical Journal
https://www.readbyqxmd.com/read/29644271/venlafaxine-induced-rem-sleep-behavioral-disorder-presenting-as-two-fractures
#3
R Ryan Williams, Gustavo Sandigo
Rapid eye movement (REM) sleep behavioral disorder is characterized by the absence of muscular atonia during REM sleep. In this disorder, patients can violently act out their dreams, placing them at risk for traumatic fractures during these episodes. REM sleep behavioral disorder (RBD) can be a sign of future neurodegenerative disease and has also been found to be a side effect of certain psychiatric medications. We present a case of venlafaxine-induced RBD in a 55 year old female who presented with a 13 year history of intermittent parasomnia and dream enactment in addition to a recent history of two fractures requiring intervention...
October 2017: Trauma Case Reports
https://www.readbyqxmd.com/read/29618627/baseline-symptoms-and-basal-forebrain-volume-predict-future-psychosis-in-early-parkinson-disease
#4
Matthew J Barrett, Jamie C Blair, Scott A Sperling, Mark E Smolkin, T Jason Druzgal
OBJECTIVE: Determining baseline predictors of future psychosis in Parkinson disease (PD) may identify those at risk for more rapidly progressive disease, i.e., a more malignant PD subtype. METHODS: This cohort study evaluated 423 patients with newly diagnosed PD collected as part of the Parkinson's Progression Markers Initiative. Psychotic symptoms were assessed with the Movement Disorders Society-Unified Parkinson Disease Rating Scale item 1.2, which assesses hallucinations and psychosis over the past week...
April 4, 2018: Neurology
https://www.readbyqxmd.com/read/29597138/rapid-eye-movement-sleep-behavior-disorder-or-epileptic-seizure-during-sleep-a-video-analysis-of-motor-events
#5
Vi-Huong Nguyen-Michel, Ovidio Solano, Smaranda Leu-Semenescu, Aurélie Pierre-Justin, Ana Gales, Vincent Navarro, Michel Baulac, Claude Adam, Sophie Dupont, Isabelle Arnulf
PURPOSE: To compare the motor semiology of sleep behavior disorder (RBD) during rapid eye movement (REM) with epileptic seizures in non-REM and REM sleep. METHODS: We analyzed the types and frequency of motor events from videos of patients with RBD (n = 15, mean age 64.8 years, 179 motor episodes) and patients with epilepsy (n = 15, mean age 34.4 years, 87 sleep-related epileptic seizures including 34 during REM sleep). RESULTS: Patients with sleep-related epileptic seizures more often woke up abruptly (28% vs...
March 21, 2018: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/29578489/rem-sleep-behavior-disorder-and-alzheimer-s-disease-definitely-no-relationship
#6
Andrea Galbiati, Giulia Carli, Michael Hensley, Luigi Ferini-Strambi
Rapid eye movement (REM) sleep behavior disorder (RBD) is a REM sleep parasomnia characterized by the loss of the typical muscular atonia present during healthy REM sleep. RBD can occur in the absence of other neurological conditions or in association with a neurodegenerative disorder. It is now well established that RBD is a strong predictor of neurodegeneration, in particular synucleinopathies, such as Parkinson's disease, Lewy body dementia (LBD), or multiple system atrophy. However, some longitudinal studies report that a minority of patients develop either overlapping form of dementia or Alzheimer disease's (AD)...
March 23, 2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29576439/lrrk2-protective-haplotype-and-full-sequencing-study-in-rem-sleep-behavior-disorder
#7
Bouchra Ouled Amar Bencheikh, Jennifer A Ruskey, Isabelle Arnulf, Yves Dauvilliers, Christelle Charley Monaca, Valérie Cochen De Cock, Jean-François Gagnon, Dan Spiegelman, Michele T M Hu, Birgit Högl, Ambra Stefani, Luigi Ferini-Strambi, Giuseppe Plazzi, Elena Antelmi, Peter Young, Anna Heidbreder, Brit Mollenhauer, Friederike Sixel-Döring, Claudia Trenkwalder, Wolfgang Oertel, Jacques Y Montplaisir, Ronald B Postuma, Guy A Rouleau, Ziv Gan-Or
BACKGROUND: Individuals with rapid eye movement (REM)-sleep behavior disorder (RBD) are likely to progress to synucleinopathies, mainly Parkinson's disease (PD), dementia with Lewy-bodies (DLB) and multiple system atrophy (MSA). The genetics of RBD only partially overlaps with PD and DLB, and the role of LRRK2 variants in risk for RBD is still not clear. METHODS: The full coding sequence, exon-intron boundaries and 5' and 3' untranslated regions of LRRK2 were sequenced using targeted next-generation sequencing...
March 21, 2018: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29569570/behavioral-and-psychological-symptoms-in-lewy-body-disease-a-review
#8
Lucie Jurek, Mathieu Herrmann, Mathilde Bonze, Sophie Brunet, Catherine Padovan, Jean-Michel Dorey
Dementia with Lewy bodies (DLB) is a common neurodegenerative disease, second in terms of prevalence after Alzheimer's disease (AD). DLB may be suspected according to three core features which are cognitive and motor fluctuations, early visual hallucinations and parkinsonism; and more recently, according to the new criteria, REM sleep behavior disorder (RBD). Behavorial and psychological symptoms associated with DLB are more frequent, more severe and appear earlier than those found in other neurodegenerative diseases...
March 1, 2018: Gériatrie et Psychologie Neuropsychiatrie du Vieillissement
https://www.readbyqxmd.com/read/29560834/comparison-of-structural-connectivity-in-parkinson-s-disease-with-depressive-symptoms-versus-non-depressed-a-diffusion-mri-connectometry-study
#9
Mina Ansari, Sahand Adib Moradi, Farzaneh Ghazi Sherbaf, Abozar Hedayatnia, Mohammad Hadi Aarabi
OBJECTIVE: Research on psychobiological markers of Parkinson's disease (PD) remains a hot topic. Non-motor symptoms such as depression and REM sleep behavior disorder (RBD) each attribute to a particular neurodegenerative cluster in PD, and might enlighten the way for early prediction/detection of PD. The neuropathology of mood disturbances remains unclear. In fact, a few studies have investigated depression using diffusion magnetic resonance imaging (diffusion MRI). METHOD: Diffusion MRI of PD patients without comorbid RBD was used to assess whether microstructural abnormalities are detectable in the brain of 40 PD patients with depression compared to 19 patients without depression...
March 21, 2018: International Psychogeriatrics
https://www.readbyqxmd.com/read/29554362/screening-for-idiopathic-rem-sleep-behavior-disorder-usefulness-of-actigraphy
#10
A Stefani, A Heidbreder, E Brandauer, M Guaita, L M Neier, T Mitterling, J Santamaria, A Iranzo, A Videnovic, C Trenkwalder, F Sixel-Döring, G K Wenning, A Chade, W Poewe, O S Gershanik, B Högl
Study objective: To evaluate the utility of multimodal low-cost approaches including actigraphy, a wrist-worn device monitoring rest/activity cycles, in identifying patients with idiopathic REM sleep behavior disorder (iRBD). Methods: Seventy patients diagnosed with sleep disorders causing different motor manifestations during sleep (iRBD, sleep apnea, restless legs syndrome) and 20 subjects without any relevant motor manifestation during sleep, underwent video-polysomnography (vPSG) and two-week actigraphy, completed six validated RBD screening questionnaires, and sleep apps use was assessed...
March 15, 2018: Sleep
https://www.readbyqxmd.com/read/29536584/early-diagnosis-of-lewy-body-disease-in-patients-with-late-onset-psychiatric-disorders-using-clinical-history-of-rapid-eye-movement-sleep-behavior-disorder-and-123-i-metaiodobenzylguanidine-cardiac-scintigraphy
#11
Hiroshige Fujishiro, Masato Okuda, Kunihiro Iwamoto, Seiko Miyata, Youta Torii, Shuji Iritani, Norio Ozaki
AIM: Rapid eye movement sleep behavior disorder (RBD) and psychiatric symptoms often antedate the clinical diagnosis of Parkinson's disease or dementia with Lewy bodies. The purpose of this study was to investigate RBD and its relevance to Lewy body disease (LBD) in patients with late-onset psychiatric disorders. METHODS: Study subjects included 19 patients with late-onset psychiatric disorders who exhibited REM sleep without atonia (RWA), which is a hallmark of RBD on polysomnography, at our psychiatric ward...
March 14, 2018: Psychiatry and Clinical Neurosciences
https://www.readbyqxmd.com/read/29535855/prevalence-and-clinical-characteristics-of-probable-rem-behavior-disorder-in-thai-parkinson-s-disease-patients
#12
Patama Gomutbutra, Kittika Kanjanaratanakorn, Nantaporn Tiyapun
Background: Previous studies have shown that Parkinson's disease (PD) patients who have REM behavior disorder (PD with RBD) might be a PD subtype since they have different symptom clusters and disease trajectories from PD without RBD. Objective: To study the prevalence of PD with pRBD and to compare the clinical characteristics with PD without pRBD. The feasibility of clinical interview of items adopted from the Mayo Sleep Questionnaire was also to be determined...
2018: Parkinson's Disease
https://www.readbyqxmd.com/read/29530376/a-comparative-study-of-methods-for-automatic-detection-of-rapid-eye-movement-abnormal-muscular-activity-in-narcolepsy
#13
Alexander Neergaard Olesen, Matteo Cesari, Julie Anja Engelhard Christensen, Helge Bjarup Dissing Sorensen, Emmanuel Mignot, Poul Jennum
OBJECTIVE: To evaluate rapid eye movement (REM) muscular activity in narcolepsy by applying five algorithms to electromyogram (EMG) recordings, and to investigate its value for narcolepsy diagnosis. PATIENTS/METHODS: A modified version of phasic EMG metric (mPEM), muscle activity index (MAI), REM atonia index (RAI), supra-threshold REM EMG activity metric (STREAM), and Frandsen method (FR) were calculated from polysomnography recordings of 20 healthy controls, 18 clinic controls (subjects suspected with narcolepsy but finally diagnosed without any sleep abnormality), 16 narcolepsy type one without REM sleep behavior disorder (RBD), nine narcolepsy type one with RBD, and 18 narcolepsy type two...
April 2018: Sleep Medicine
https://www.readbyqxmd.com/read/29530365/the-effect-of-light-exposure-on-insomnia-and-nocturnal-movement-in-parkinson-s-disease-an-open-label-retrospective-longitudinal-study
#14
Jessica K Martino, Christopher B Freelance, Gregory L Willis
Insomnia, hypersomnia and REM Sleep Behavior Disorder (RSBD) during sleep are major problems for patients suffering from Parkinson's disease (PD) but they are also used to predict its onset. While these secondary symptoms detract from the quality of life in PD patients, few treatment options are available due to limited efficacy or risk of complicating the treatment regimen. Light therapy (LT) has been suggested as a strategy for sleep disorders but it has only been implemented recently for use in PD. An open label, retrospective study was undertaken where PD patients had been undergoing LT, using polychromatic light, for four months to 15 years prior...
April 2018: Sleep Medicine
https://www.readbyqxmd.com/read/29528541/take-care-to-identify-apathy-in-idiopathic-rem-sleep-behavior-disorder
#15
Erik K St Louis
Apathy has been recently recognized as a distinct neuropsychological syndrome, overlapping with but also separable from mood disorders and cognitive impairment. While it is perhaps seen most often as a cardinal feature of depression as an amotivational symptom, it may occur independently in isolation without other prominent mood, vegetative, or cognitive symptoms or signs. The etymology of apathy is derived from the Greek "pathos" (passion), so apathy may be considered to be an amotivational state, i...
March 12, 2018: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/29487000/glucocerebrosidase-gene-variants-are-accumulated-in-idiopathic-rem-sleep-behavior-disorder
#16
Ana Gámez-Valero, Alex Iranzo, Monica Serradell, Dolores Vilas, Joan Santamaria, Carles Gaig, Ramiro Álvarez, Aurelio Ariza, Eduardo Tolosa, Katrin Beyer
INTRODUCTION: Glucocerebrosidase (GBA) gene variants are associated with the development of the Lewy body disorders (LBD) Parkinson disease (PD) and dementia with Lewy bodies (DLB). Idiopathic REM sleep behavior disorder (IRBD) represents prodromal LBD in most instances. We investigated whether GBA variants are overrepresented in IRBD and if their presence shortens the time to conversion to clinically-defined LBD. METHODS: All GBA coding exons from 69 polysomnography-confirmed IRBD patients and 84 matched controls were sequenced by the Sanger method...
February 21, 2018: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29476004/the-metabolic-pattern-of-idiopathic-rem-sleep-behavior-disorder-reflects-early-stage-parkinson-s-disease
#17
Sanne Katherina Meles, Remco J Renken, Annette Janzen, David Vadasz, Marco Pagani, Dario Arnaldi, Silvia Morbelli, Flavio Nobili, Geert Mayer, Klaus L Leenders, Wolfgang H O Oertel
Rationale: Idiopathic REM sleep behavior disorder (iRBD) is considered a prodromal stage of Parkinson's disease (PD) and other Lewy-body disorders. Spatial covariance analysis of [18 F]-Fluorodeoxyglucose Positron Emission Tomography (18 F-FDG-PET) data has disclosed a specific brain pattern of altered glucose metabolism in PD. In this study, we identify the metabolic pattern underlying iRBD and compare it to the known PD pattern. To understand the relevance of the iRBD pattern to disease progression, we study the expression of the iRBD pattern in de novo PD patients...
February 23, 2018: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29466944/risk-variants-of-the-%C3%AE-synuclein-locus-and-rem-sleep-behavior-disorder-in-parkinson-s-disease-a-genetic-association-study
#18
Kari Anne Bjørnarå, Lasse Pihlstrøm, Espen Dietrichs, Mathias Toft
BACKGROUND: Parkinson's disease is a heterogeneous disorder where genetic factors may underlie clinical variability. Rapid eye movement sleep behavior disorder (RBD) is a parasomnia strongly linked to synucleinopathies, including Parkinson's disease. We hypothesized that SNCA variants conferring risk of Parkinson's disease would also predispose to an RBD phenotype. METHODS: We assessed possible RBD (pRBD) status using the RBD screening questionnaire and investigated known susceptibility variants for Parkinson's disease located in the α-synuclein (SNCA) and tau (MAPT) gene loci in 325 Parkinson's disease patients...
February 21, 2018: BMC Neurology
https://www.readbyqxmd.com/read/29462410/changes-in-brain-derived-neurotrophic-factor-expression-influence-sleep-wake-activity-and-homeostatic-regulation-of-rapid-eye-movement-sleep
#19
Jennifer M Garner, Jonathan Chambers, Abigail K Barnes, Subimal Datta
Study Objectives: Brain-derived neurotrophic factor (BDNF) expression and homeostatic regulation of rapid eye movement (REM) sleep are critical for neurogenesis and behavioral plasticity. Accumulating clinical and experimental evidence suggests that decreased BDNF expression is causally linked with the development of REM sleep-associated neuropsychiatric disorders. Therefore, we hypothesize that BDNF plays a role in sleep-wake (S-W) activity and homeostatic regulation of REM sleep. Methods: Male and female wild-type (WT; BDNF +/+) and heterozygous BDNF (KD; BDNF +/-) rats were chronically implanted with S-W recording electrodes to quantify baseline S-W activity and REM sleep homeostatic regulatory processes during the light phase...
November 20, 2017: Sleep
https://www.readbyqxmd.com/read/29458746/stridor-combined-with-other-sleep-breathing-disorders-in-multiple-system-atrophy-a-tailored-treatment
#20
Saleheddine Rekik, Francis Martin, Pauline Dodet, Stefania Redolfi, Smaranda Leu-Semenescu, Jean-Christophe Corvol, David Grabli, Isabelle Arnulf
OBJECTIVES: To determine the frequency of sleep breathing disorders in multiple systemic atrophy (MSA, combining Parkinsonism, cerebellar syndrome, and dysautonomia) and evaluate the benefit/tolerance of various modes of ventilation. METHODS: We retrospectively analyzed 45 patients with MSA having undergone a videopolysomnography. Their sleep characteristics were compared to those of 45 patients with Parkinson's disease and 45 healthy controls, matched for age and sex...
February 2018: Sleep Medicine
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