Is a purpose of REM sleep atonia to help regenerate intervertebral disc volumetric loss? by Fryer Jerome CJ

“…This article discusses a new hypothesis for complete core muscle relaxation in REM sleep, suggesting a bottom-up recuperative perspective. …”
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REM Sleep Behavior and Motor Findings in Parkinson's Disease: A Cross-sectional Analysis by Abhimanyu Mahajan, Liana S. Rosenthal, Charlene Gamaldo, Rachel E. Salas, Gregory M. Pontone, Arita McCoy, Chizoba Umeh, Zoltan Mari

“…Cross‐sectional analysis was carried out to assess the association between REM Sleep Behavior Screening Questionnaire score and MDS UPDRS‐3 (motor) score categories. …”
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Inaccurate self-report of olfactory dysfunction in REM Sleep Behaviour Disorder and implications for prognosis by Amber Roguski, Michal Rolinski, Matt W. Jones, Alan Whone

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Epigenetic clocks suggest accelerated aging in patients with isolated REM Sleep Behavior Disorder by Luca Baldelli, Chiara Pirazzini, Luisa Sambati, Francesco Ravaioli, Davide Gentilini, Giovanna Calandra-Buonaura, Pietro Guaraldi, Claudio Franceschi, Pietro Cortelli, Paolo Garagnani, Maria Giulia Bacalini, Federica Provini

“…Abstract Isolated REM Sleep Behavior Disorder (iRBD) is the strongest prodromal marker for α-synucleinopathies. …”
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Locus coeruleus activity while awake is associated with REM sleep quality in older individuals by Ekaterina Koshmanova, Alexandre Berger, Elise Beckers, Islay Campbell, Nasrin Mortazavi, Roya Sharifpour, Ilenia Paparella, Fermin Balda, Christian Berthomier, Christian Degueldre, Eric Salmon, Laurent Lamalle, Christine Bastin, Maxime Van Egroo, Christophe Phillips, Pierre Maquet, Fabienne Collette, Vincenzo Muto, Daphne Chylinski, Heidi I.L. Jacobs, Puneet Talwar, Siya Sherif, Gilles Vandewalle

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Erratum: Targeted memory reactivation during REM sleep in patients with social anxiety disorder by Frontiers Production Office

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Wide-spread brain activation and reduced CSF flow during avian REM sleep by Gianina Ungurean, Mehdi Behroozi, Leonard Böger, Xavier Helluy, Paul-Antoine Libourel, Onur Güntürkün, Niels C. Rattenborg

“…We further demonstrate that ventricular CSF flow increases during NREM sleep, relative to wakefulness, but drops sharply during REM sleep. Consequently, functions linked to brain activation during REM sleep might come at the expense of waste clearance during NREM sleep.…”
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Association Between Amyloid Accumulation and Sleep in Patients With Idiopathic REM Sleep Behavior Disorder by Hanul Lee, Hyunjin Cho, Yeong Sim Choe, Yeong Sim Choe, Sang Won Seo, Eun Yeon Joo

Subjects: “…idiopathic REM sleep behavior disorder…”
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Orexin signaling modulates synchronized excitation in the sublaterodorsal tegmental nucleus to stabilize REM sleep by Hui Feng, Si-Yi Wen, Qi-Cheng Qiao, Yu-Jie Pang, Sheng-Yun Wang, Hao-Yi Li, Jiao Cai, Kai-Xuan Zhang, Jing Chen, Zhi-An Hu, Fen-Lan Luo, Guan-Zhong Wang, Nian Yang, Jun Zhang

“…Here, the authors show that a proportion of orexin neurons project to the sublaterodorsal tegmental nucleus and exhibit rapid eye movement (REM) sleep-related actions.…”
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Bistability breaks-off deterministic responses to intracortical stimulation during non-REM sleep by Andrea Pigorini, Paola Proserpio, Caroline Szymansky, Gabriele Arnulfo, Marcello Massimini

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Magnetic Resonance Parkinsonism Index Is Associated with REM Sleep Behavior Disorder in Parkinson’s Disease by Daniele Urso, Salvatore Nigro, Benedetta Tafuri, Valentina Gnoni, Marco Filardi, Roberto De Blasi, K. Ray Chaudhuri, Giancarlo Logroscino

“…We investigated the association between the Magnetic Resonance Parkinsonism Index (MRPI) and REM sleep behavior disorder (RBD). We included 226 de novo PD patients (82 PD-RBD and 144 PD-noRBD) and 19 idiopathic RBD patients. …”
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Can Corticomuscular Coherence Differentiate between REM Sleep Behavior Disorder with or without Parkinsonism? by Gyeong Seon Choi, Ji Young Yun, Sungeun Hwang, Song E. Kim, Jeong-Yeon Kim, Chang-Hwan Im, Hyang Woon Lee

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Probable REM sleep behavior disorder is associated with longitudinal cortical thinning in Parkinson’s disease by Eun Jin Yoon, Oury Monchi

“…Abstract REM sleep behavior disorder (RBD) has a poor prognostic implication in both motor and non-motor functions in Parkinson’s disease (PD) patients. …”
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Turning alterations detected by mobile health technology in idiopathic REM sleep behavior disorder by Cinzia Zatti, Andrea Pilotto, Clint Hansen, Andrea Rizzardi, Marcello Catania, Robbin Romijnders, Leandro Purin, Maria P. Pasolini, Eva Schaeffer, Andrea Galbiati, Luigi Ferini-Strambi, Daniela Berg, Walter Maetzler, Alessandro Padovani

“…Abstract Idiopathic REM sleep Behavior Disorder (iRBD) is a condition at high risk of developing Parkinson’s disease (PD) and other alpha-synucleinopathies. …”
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Proof-of-concept for characterization of neurodegenerative disorders utilizing two non-REM sleep biomarkers by Daniel J. Levendowski, Thomas C. Neylan, Christine M. Walsh, Debby Tsuang, David Salat, Joanne M. Hamilton, Joyce K. Lee-Iannotti, Chris Berka, Gandis Mazeika, Bradley F. Boeve, Erik K. St. Louis

“…Study objectiveThis proof-of-concept study aimed to determine whether the combined features of two non-rapid eye movement (NREM) sleep biomarkers acquired predominantly in-home could characterize different neurodegenerative disorders.MethodsSleep spindle duration and non-REM hypertonia (NRH) were evaluated in seven groups including a control group (CG = 61), and participants with isolated REM sleep behavior disorder (iRBD = 19), mild cognitive impairment (MCI = 41), Parkinson disease (PD = 16), Alzheimer disease dementia (ADem = 29), dementia with Lewy Bodies or Parkinson disease dementia (LBD = 19) and progressive supranuclear palsy (PSP = 13). …”
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Evolution patterns of probable REM sleep behavior disorder predicts Parkinson’s disease progression by Guanyu Ye, Xiaomeng Xu, Liche Zhou, Aonan Zhao, Lin Zhu, Jun Liu

“…Abstract The course of REM sleep behavior disorder (RBD) variates in the early stage of Parkinson’s disease. …”
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Nigrosome 1 imaging in REM sleep behavior disorder and its association with dopaminergic decline by Thomas R. Barber, Ludovica Griffanti, Kevin M. Bradley, Daniel R. McGowan, Christine Lo, Clare E. Mackay, Michele T. Hu, Johannes C. Klein

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Articulatory undershoot of vowels in isolated REM sleep behavior disorder and early Parkinson’s disease by Dominik Skrabal, Jan Rusz, Michal Novotny, Karel Sonka, Evzen Ruzicka, Petr Dusek, Tereza Tykalova

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Running speed and REM sleep control two distinct modes of rapid interhemispheric communication by Megha Ghosh, Fang-Chi Yang, Sharena P. Rice, Vaughn Hetrick, Alcides Lorenzo Gonzalez, Danny Siu, Ellen K.W. Brennan, Tibin T. John, Allison M. Ahrens, Omar J. Ahmed

“…Anti-phase splines also demarcate high-activity frames during REM sleep. While splines and associated neuronal spiking are anti-phase across retrosplenial hemispheres during navigation and REM sleep, gamma-rhythmic interhemispheric communication is precisely in-phase. …”
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Reply to Grace: Role of cholinergic neurons in rapid eye movement (REM) sleep control by Van Dort, Christa Joy, Brown, Emery Neal

“…However, in our report we do demonstrate the sufficiency of PPT/LDT neurons to influence REM sleep initiation but not influence REM sleep duration, thus distinguishing the role of cholinergic neurons on these properties of REM sleep. …”
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