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Rapid eye movement sleep

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https://www.readbyqxmd.com/read/29664058/relationships-between-rapid-eye-movement-sleep-behavior-disorder-and-neurodegenerative-diseases-clinical-assessments-biomarkers-and-treatment
#1
REVIEW
Min Li, Li Wang, Jiang-Hong Liu, Shu-Qin Zhan
Objective: Rapid eye movement sleep behavior disorder (RBD) is characterized by dream enactment and loss of muscle atonia during rapid eye movement sleep. RBD is closely related to α-synucleinopathies including Parkinson's disease, dementia with Lewy bodies, and multiple system atrophy. Many studies have investigated the markers of imaging and neurophysiological, genetic, cognitive, autonomic function of RBD and their predictive value for neurodegenerative diseases. This report reviewed the progress of these studies and discussed their limitations and future research directions...
April 20, 2018: Chinese Medical Journal
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/29655763/sleeping-oxygen-saturation-rapid-eye-movement-sleep-and-the-adaptation-of-postprandial-metabolic-function-in-insulin-sensitive-and-resistant-individuals-without-diabetes
#3
Karin A Garcia, William K Wohlgemuth, Ele Ferrannini, Andrea Mari, Alex Gonzalez, Armando J Mendez, Roberto Bizzotto, Jay S Skyler, Neil Schneiderman, Barry E Hurwitz
AIMS: Sleeping oxygen saturation (SaO2 ) and sleep stage duration have been linked with prediabetic alterations but the pathogenic pathways are not well understood. This study of insulin sensitive and resistant adults examined the effect on postprandial metabolic regulation of repeated mixed-meal challenges of different carbohydrate loading. The aim was to examine whether the relationship between lower sleeping oxygen saturation (SaO2 ) and poorer fasting and postprandial metabolic function may be linked with reduced slow wave sleep (SWS) and rapid eye movement (REM) duration, independent of age, sex and total adiposity...
April 12, 2018: Physiology & Behavior
https://www.readbyqxmd.com/read/29652904/first-night-effect-on-sleep-time-in-dairy-cows
#4
Emma Ternman, Matti Pastell, Laura Hänninen, Sigrid Agenäs, Per P Nielsen
In human sleep studies, the probability of discomfort from the electrodes and the change in environment usually results in first-night recordings being discarded. Sleep recordings from the first night in human subjects often differ in amount of REM (rapid eye movement) sleep and the overall sleep architecture. This study investigated whether recordings of sleep states in dairy cows also show a first-night effect. Non-invasive electrophysiological recordings were carried out on nine cows of the Swedish Red breed during three consecutive 24-hour periods (recording days 1-3)...
2018: PloS One
https://www.readbyqxmd.com/read/29652889/the-rostromedial-tegmental-nucleus-is-essential-for-non-rapid-eye-movement-sleep
#5
Su-Rong Yang, Zhen-Zhen Hu, Yan-Jia Luo, Ya-Nan Zhao, Huan-Xin Sun, Dou Yin, Chen-Yao Wang, Yu-Dong Yan, Dian-Ru Wang, Xiang-Shan Yuan, Chen-Bo Ye, Wei Guo, Wei-Min Qu, Yoan Cherasse, Michael Lazarus, Yu-Qiang Ding, Zhi-Li Huang
The rostromedial tegmental nucleus (RMTg), also called the GABAergic tail of the ventral tegmental area, projects to the midbrain dopaminergic system, dorsal raphe nucleus, locus coeruleus, and other regions. Whether the RMTg is involved in sleep-wake regulation is unknown. In the present study, pharmacogenetic activation of rat RMTg neurons promoted non-rapid eye movement (NREM) sleep with increased slow-wave activity (SWA). Conversely, rats after neurotoxic lesions of 8 or 16 days showed decreased NREM sleep with reduced SWA at lights on, which persisted until after lesions of 25 days...
April 13, 2018: PLoS Biology
https://www.readbyqxmd.com/read/29644271/venlafaxine-induced-rem-sleep-behavioral-disorder-presenting-as-two-fractures
#6
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/29628334/consolidative-mechanisms-of-emotional-processing-in-rem-sleep-and-ptsd
#7
REVIEW
Anthony L A Murkar, Joseph De Koninck
Research suggests sleep plays a role in the consolidation of recently acquired memories for long-term storage. rapid eye movement (REM) sleep has been shown to play a complex role in emotional-memory processing, and may be involved in subsequent waking-day emotional reactivity and amygdala responsivity. Interaction of the hippocampus and basolateral amygdala with the medial-prefrontal cortex is associated with sleep-dependent learning and emotional memory processing. REM is also implicated in post-traumatic stress disorder (PTSD), which is characterized by sleep disturbance, heightened reactivity to fearful stimuli, and nightmares...
March 15, 2018: Sleep Medicine Reviews
https://www.readbyqxmd.com/read/29624773/sleep-disorders-in-spinocerebellar-ataxia-type-10
#8
Ester London, Carlos H F Camargo, Alessandra Zanatta, Ana C Crippa, Salmo Raskin, Renato P Munhoz, Tetsuo Ashizawa, Hélio A G Teive
As sleep disturbances have been reported in spinocerebellar ataxias (SCAs), including types SCA1, SCA2, SCA3, SCA6 and SCA13, identification and management of these disturbances can help minimise their impact on SCA patients' overall body functions and quality of life. To our knowledge, there are no studies that investigate sleep disturbances in SCA10. Therefore, the aim of this study was to assess sleep disturbances in patients with SCA10. Twenty-three SCA10 patients and 23 healthy controls were recruited...
April 6, 2018: Journal of Sleep Research
https://www.readbyqxmd.com/read/29616880/is-adenosine-action-common-ground-for-nrem-sleep-torpor-and-other-hypometabolic-states
#9
Alessandro Silvani, Matteo Cerri, Giovanna Zoccoli, Steven J Swoap
This review compares two states that lower energy expenditure: non-rapid eye movement (NREM) sleep and torpor. Knowledge on mechanisms common to these states, and particularly on the role of adenosine in NREM sleep, may ultimately open the possibility of inducing a synthetic torpor-like state in humans for medical applications and long-term space travel. To achieve this goal, it will be important, in perspective, to extend the study to other hypometabolic states, which, unlike torpor, can also be experienced by humans...
May 1, 2018: Physiology
https://www.readbyqxmd.com/read/29614906/effect-of-rapid-eye-movement-related-obstructive-sleep-apnea-on-adherence-to-continuous-positive-airway-pressure
#10
Tetsuro Hoshino, Ryujiro Sasanabe, Tohru Tanigawa, Kenta Murotani, Mariko Arimoto, Hiromi Ueda, Toshiaki Shiomi
Objective Rapid eye movement (REM)-related obstructive sleep apnea (OSA) is characterized by respiratory events such as apnea and hypopnea predominately or exclusively during REM sleep. Several studies have revealed clinical predictors of adherence to the use of continuous positive airway pressure (CPAP). However, the effect of REM-related OSA on adherence to CPAP use remains unclear. Therefore, we investigated the effects of REM-related OSA on adherence to CPAP use 6 months after treatment initiation. Methods We enrolled 161 patients in this study and divided them into 3 groups: the good adherence, poor adherence, and dropout groups...
January 1, 2018: Journal of International Medical Research
https://www.readbyqxmd.com/read/29609709/integrating-the-divided-nasal-cannula-into-routine-polysomnography-to-assess-nasal-cycle-feasibility-and-effect-on-outcomes
#11
Marcelo Scapuccin, Logan Schneider, Nur Rashid, Soroush Zaghi, Talita Rosa, Yung-An Tsuo, Stanley Liu, Paulo Lazarini, Robson Capasso, Chad Ruoff
STUDY OBJECTIVES: Patients suspected to have sleep-disordered breathing underwent an overnight polysomnography using a divided nasal cannula to gain additional information about the nasal cycle during sleep. METHODS: This was a prospective, observational cohort study replacing the undivided nasal cannula with a divided nasal cannula during routine polysomnography (n = 28). RESULTS: Integration of the divided nasal cannula pressure transducer system into routine polysomnography was easy and affordable...
March 30, 2018: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/29606605/investigation-of-non-motor-symptoms-in-first-degree-relatives-of-patients-with-parkinson-s-disease
#12
Jiang-Bing Liu, Jun-Ling Leng, Xin-Jiang Zhang, Zhao-Xia Wang, Zuo-Wei Duan, Cheng-Jie Mao, Chun-Feng Liu
OBJECTIVE: Non-motor symptoms (NMS) are important prodromal characteristics of Parkinson's disease (PD). However, the incidence of NMS in first-degree relatives, such as siblings of PD patients, is still unknown. METHODS: A total of 98 PD patients of the Affiliated Hospital of Yangzhou University were recruited; 210 siblings of these patients were included in a first-degree relatives (FDR) group and 250 healthy individuals were included in a control group. Various scales were used to assess NMS, including depression, anxiety, cognitive function, sleep status, constipation, daytime sleepiness, Rapid-Eye-Movement Sleep Behavior Disorder (RBD), and Restless Legs Syndrome (RLS)...
March 27, 2018: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29602778/clinical-imaging-in-dementia-with-lewy-bodies
#13
REVIEW
Ajenthan Surendranathan, John Tiernan O'Brien
Dementia with Lewy bodies (DLB) is a common neurodegenerative dementia in older people; however, the clinical features, particularly cognitive fluctuations and rapid eye movement sleep disorder, are often hard to elicit, leading to difficulty in making the diagnosis clinically. Here we examine the literature for the evidence behind imaging modalities that could assist in making the diagnosis. Dopamine transporter (DAT) imaging remains the best modality for differentiation from dementia of Alzheimer's type with high sensitivity and specificity reported based on pathological diagnoses...
March 29, 2018: Evidence-based Mental Health
https://www.readbyqxmd.com/read/29597138/rapid-eye-movement-sleep-behavior-disorder-or-epileptic-seizure-during-sleep-a-video-analysis-of-motor-events
#14
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/29581380/effects-of-ageing-on-cortical-neural-dynamics-and-local-sleep-homeostasis-in-mice
#15
Laura E McKillop, Simon P Fisher, Nanyi Cui, Stuart N Peirson, Russell G Foster, Keith A Wafford, Vladyslav V Vyazovskiy
Healthy ageing is associated with marked effects on sleep, including its daily amount and architecture, as well as the specific electroencephalogram (EEG) oscillations. Neither the neurophysiological underpinnings, nor the biological significance of these changes are understood, and crucially the question remains whether ageing is associated with reduced sleep need or a diminished capacity to generate sufficient sleep. Here we tested the hypothesis that ageing may affect local cortical networks, disrupting the capacity to generate and sustain sleep oscillations, and with it the local homeostatic response to sleep loss...
March 26, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29578489/rem-sleep-behavior-disorder-and-alzheimer-s-disease-definitely-no-relationship
#16
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
#17
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/29563784/clinical-impact-of-episodic-nocturnal-hypercapnia-and-its-treatment-with-noninvasive-positive-pressure-ventilation-in-patients-with-stable-advanced-copd
#18
Takamasa Kitajima, Satoshi Marumo, Hiroshi Shima, Masahiro Shirata, Satoru Kawashima, Daiki Inoue, Yuko Katayama, Ryo Itotani, Minoru Sakuramoto, Motonari Fukui
Purpose: Episodic nocturnal hypercapnia (eNH) caused by rapid eye movement (REM) sleep-related hypoventilation is often noted in patients with advanced COPD. The purpose of this study was to clarify the clinical significance of eNH and the effectiveness of eNH-targeted noninvasive positive pressure ventilation (NPPV). Patients and methods: We enrolled patients with stable, severe, or very severe COPD with daytime arterial partial oxygen pressure PaO2 ≥55 mmHg and daytime arterial partial carbon dioxide pressure PaCO2 <55 mmHg, who underwent overnight transcutaneous carbon dioxide pressure (PtcCO2 ) monitoring from April 2013 to April 2016...
2018: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29557373/wake-promoting-effects-of-vagus-nerve-stimulation-after-traumatic-brain-injury-upregulation-of-orexin-a-and-orexin-receptor-type-1-expression-in-the-prefrontal-cortex
#19
Xiao-Yang Dong, Zhen Feng
Orexins, produced in the lateral hypothalamus, are important neuropeptides that participate in the sleep/wake cycle, and their expression coincides with the projection area of the vagus nerve in the brain. Vagus nerve stimulation has been shown to decrease the amounts of daytime sleep and rapid eye movement in epilepsy patients with traumatic brain injury. In the present study, we investigated whether vagus nerve stimulation promotes wakefulness and affects orexin expression. A rat model of traumatic brain injury was established using the free fall drop method...
February 2018: Neural Regeneration Research
https://www.readbyqxmd.com/read/29544817/dissociated-resting-state-functional-networks-between-the-dream-recall-frequency-and-rem-sleep-percentage
#20
Qihong Zou, Shuqin Zhou, Jing Xu, Zihui Su, Yuezhen Li, Yundong Ma, Hongqiang Sun, Changwei W Wu, Jia-Hong Gao
Rapid eye movement (REM) sleep has been frequently associated with dreaming. However, mounting evidence obtained from behavioral, pharmacological, and brain imaging studies suggests that REM sleep is not indicative of the dream report and may originate from diverse neural substrates in brain functionality. The aim of the current study was to investigate the functional systems associated with inter-individual differences in dream recall and REM sleep through assessments of the resting-state functional connectivity...
March 12, 2018: NeuroImage
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