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https://www.readbyqxmd.com/read/28892547/non-rapid-eye-movement-arousal-parasomnias-in-children
#1
Vijayabharathi Ekambaram, Kiran Maski
Parasomnia is a common pediatric sleep disorder that can cause parents or caregivers distress when experienced by their children. Based on the International Classification of Sleep Disorders, parasomnias can be divided into two subgroups: non-rapid eye movement (NREM) parasomnias and rapid eye movement (REM) parasomnias. REM sleep parasomnias include nightmares, REM behavior disorder, and sleep paralysis, whereas NREM sleep parasomnias include disorders of arousal such as confusional arousals, sleepwalking, sleep talking, night terrors, and sleep-related eating disorder...
September 1, 2017: Pediatric Annals
https://www.readbyqxmd.com/read/28890381/the-link-between-parkinson-s-disease-and-rapid-eye-movement-sleep-behavior-disorder-with-dream-enactment-possible-implications-for-early-rehabilitation
#2
Brian P Johnson, Kelly P Westlake
The purpose of this paper is twofold. First, to inform readers of the link between the loss of motor inhibition during rapid eye movement (REM) sleep dreaming, diagnosed as REM sleep behavior disorder (RBD), and the future onset of neurodegenerative disorders, such as Parkinson's Disease and dementia with lewy bodies. It has been reported that motor disinhibition during rapid eye movement sleep often precedes onset of these disorders by years or even decades. Second, to consider that identification of RBD and the early involvement of rehabilitation and/or development of home exercise plans may aid in prolonging and even increasing function, independence, and quality of life should such neurodegenerative disorders develop later in life...
September 7, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28882322/who-can-diagnose-parkinson-s-disease-first-role-of-pre-motor-symptoms
#3
REVIEW
Mayela Rodríguez-Violante, Rosalía Zerón-Martínez, Amin Cervantes-Arriaga, Teresa Corona
In 1817, James Parkinson described the disease which bears his name. The disease was defined as a neurological syndrome characterized by tremor, rigidity, and slowness of movements. Almost one hundred years later, degeneration of neurons in the substantia nigra and low levels of dopamine were identified as the putative cause of the disease, thus the disease remained as a pure neurological disorder. In the late 1990s, non-motor symptoms of the disease began to gain interest because of their clinical relevance, as well as for their potential role in broadening the understanding of the pathophysiological mechanisms involved...
September 4, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/28874450/hypothalamic-tuberomammillary-nucleus-neurons-electrophysiological-diversity-and-essential-role-in-arousal-stability
#4
Akie Fujita, Patricia Bonnavion, Miryam H Wilson, Laura E Mickelsen, Julien Bloit, Luis de Lecea, Alexander C Jackson
Histaminergic (HA) neurons, found in the posterior hypothalamic tuberomammillary nucleus (TMN), extend fibers throughout the brain and exert modulatory influence over numerous physiological systems. Multiple lines of evidence suggest that the activity of HA neurons is important in the regulation of vigilance despite the lack of direct, causal evidence demonstrating its requirement for the maintenance of arousal during wakefulness. Given the strong correlation between HA neuron excitability and behavioral arousal, we investigated both the electrophysiological diversity of HA neurons in brain slices and the effect of their acute silencing in vivo in male mice...
September 5, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28843021/the-nasal-and-gut-microbiome-in-parkinson-s-disease-and-idiopathic-rapid-eye-movement-sleep-behavior-disorder
#5
Anna Heintz-Buschart, Urvashi Pandey, Tamara Wicke, Friederike Sixel-Döring, Annette Janzen, Elisabeth Sittig-Wiegand, Claudia Trenkwalder, Wolfgang H Oertel, Brit Mollenhauer, Paul Wilmes
BACKGROUND: Increasing evidence connects the gut microbiota and the onset and/or phenotype of Parkinson's disease (PD). Differences in the abundances of specific bacterial taxa have been reported in PD patients. It is, however, unknown whether these differences can be observed in individuals at high risk, for example, with idiopathic rapid eye movement sleep behavior disorder, a prodromal condition of α-synuclein aggregation disorders including PD. OBJECTIVES: To compare microbiota in carefully preserved nasal wash and stool samples of subjects with idiopathic rapid eye movement sleep behavior disorder, manifest PD, and healthy individuals...
August 26, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28809834/quantifying-infra-slow-dynamics-of-spectral-power-and-heart-rate-in-sleeping-mice
#6
Laura M J Fernandez, Sandro Lecci, Romain Cardis, Gil Vantomme, Elidie Béard, Anita Lüthi
Three vigilance states dominate mammalian life: wakefulness, non-rapid eye movement (non-REM) sleep, and REM sleep. As more neural correlates of behavior are identified in freely moving animals, this three-fold subdivision becomes too simplistic. During wakefulness, ensembles of global and local cortical activities, together with peripheral parameters such as pupillary diameter and sympathovagal balance, define various degrees of arousal. It remains unclear the extent to which sleep also forms a continuum of brain states-within which the degree of resilience to sensory stimuli and arousability, and perhaps other sleep functions, vary gradually-and how peripheral physiological states co-vary...
August 2, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28808850/non-rem-sleep-disordered-breathing-affects-performance-on-the-psychomotor-vigilance-task
#7
Takuro Kitamura, Soichiro Miyazaki, Hiroshi Kadotani, Takashi Kanemura, Harun Bin Sulaiman, Shoko Takeuchi, Takahisa Tabata, Hideaki Suzuki
PURPOSE: Although many studies have investigated the clinical importance of sleep apnea on rapid eye movement (REM) and non-REM (NREM) sleep, the relationship between behavioral performance and apneic events during different sleep phases remains unclear. In the present study, we sought to investigate the effect of sleep phase fragmentation due to sleep-disordered breathing (SDB) during REM and NREM on the vigilance and sustainability of attention based on psychomotor vigilance task (PVT) performance...
August 14, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/28805589/visual-dysfunction-in-parkinson-s-disease
#8
Richard A Armstrong
This chapter describes the visual problems likely to be encountered in Parkinson's disease (PD) and whether such signs are useful in differentiating the parkinsonian syndromes. Visual dysfunction in PD may involve visual acuity, contrast sensitivity, color discrimination, pupil reactivity, saccadic and pursuit eye movements, motion perception, visual fields, and visual processing speeds. In addition, disturbance of visuospatial orientation, facial recognition problems, rapid eye movement (REM) sleep behavior disorder, and chronic visual hallucinations may be present...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28802939/sleep-dysfunction-in-parkinson-s-disease
#9
Cristian Falup-Pecurariu, Ştefania Diaconu
The spectrum of sleep problems in Parkinson's disease (PD) is broad. These symptoms are recognized as being clinically relevant by the PD patients and may seriously affect their quality of life. Some studies reveal the occurrence of sleep disorders in more than half of the PD patients. The etiology is multifactorial and it mainly involves the degeneration of the sleep-regulating structures. Sleep disorders in PD can be classified into: disturbances of sleep and disturbances of wakefulness. Generic and specific scales were designed to help the screening and evaluation of sleep dysfunction...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28781201/seven-tesla-mri-of-the-substantia-nigra-in-patients-with-rapid-eye-movement-sleep-behavior-disorder
#10
Daniela Frosini, Mirco Cosottini, Graziella Donatelli, Mauro Costagli, Laura Biagi, Claudio Pacchetti, Michele Terzaghi, Pietro Cortelli, Dario Arnaldi, Enrica Bonanni, Michela Tosetti, Ubaldo Bonuccelli, Roberto Ceravolo
INTRODUCTION: Susceptibility-weighted imaging of the substantia nigra (SN) both at 7 and 3 Tesla (T) has shown high accuracy in distinguishing patients with Parkinson's disease (PD) and healthy subjects (HS). Patients with rapid eye movement (REM) behavior disorder (RBD) can develop synucleinopathies, and such risk is higher with dopamine transporter single photon emission tomography (123I-FP-CIT SPECT) evidence of nigro-striatal dysfunction. We aimed at evaluating SN 7T magnetic resonance imaging (7T-MRI) in patients with RBD and determining the agreement between MRI and 123I-FP-CIT SPECT...
August 2, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28777179/comorbid-sleep-disturbances-in-neurologic-disorders
#11
Yo-El S Ju, Aleksandar Videnovic, Bradley V Vaughn
PURPOSE OF REVIEW: This article provides a review of disturbances of sleep comorbid with common neurologic disorders. RECENT FINDINGS: A wide variety of neurologic disorders are frequently complicated by comorbid sleep disturbances. In many cases, a bidirectional relationship appears to occur between sleep function and the neurologic disease, such that treatment of comorbid sleep disturbances may improve the symptoms of the neurologic disease. SUMMARY: Neurologic disorders are often associated with abnormalities of sleep...
August 2017: Continuum: Lifelong Learning in Neurology
https://www.readbyqxmd.com/read/28777175/non-rapid-eye-movement-sleep-and-overlap-parasomnias
#12
Muna Irfan, Carlos H Schenck, Michael J Howell
PURPOSE OF REVIEW: This article reviews the spectrum of non-rapid eye movement (non-REM) sleep parasomnias, including sleepwalking, confusional arousals, and sleep terrors, which represent the range of phenotypic disorders of arousal from non-REM sleep that occurs in children and adults. RECENT FINDINGS: The International Classification of Sleep Disorders, Third Edition (ICSD-3) classifies parasomnias according to the sleep stage they emerge from: REM, non-REM, or other...
August 2017: Continuum: Lifelong Learning in Neurology
https://www.readbyqxmd.com/read/28777174/rapid-eye-movement-sleep-behavior-disorder-and-other-rapid-eye-movement-sleep-parasomnias
#13
Birgit Högl, Alex Iranzo
PURPOSE OF REVIEW: The most common rapid eye movement (REM) parasomnia encountered by neurologists is REM sleep behavior disorder (RBD), and nightmares are so frequent that every neurologist should be able to differentiate them from the dream enactment of RBD. Isolated sleep paralysis is relatively common and is often mistaken for other neurologic disorders. This article summarizes the current state of the art in the diagnosis of RBD, discusses the role of specific questionnaires and polysomnography in the diagnosis of RBD, and reviews recent studies on idiopathic RBD as an early feature of a synucleinopathy, secondary RBD, and its management...
August 2017: Continuum: Lifelong Learning in Neurology
https://www.readbyqxmd.com/read/28777171/diagnostic-approach-and-investigation-in-sleep-medicine
#14
Michael H Silber
PURPOSE OF REVIEW: This article provides a clinical approach to the appropriate investigation and diagnosis of sleep disorders commonly seen by neurologists. RECENT FINDINGS: Home sleep apnea testing in appropriate situations can replace laboratory polysomnography in many cases of uncomplicated sleep apnea. Multiple sleep latency tests must be performed meticulously and interpreted in the clinical setting to avoid overdiagnoses of narcolepsy. Human leukocyte antigen testing has limited utility in establishing a diagnosis of narcolepsy because a positive test has low specificity...
August 2017: Continuum: Lifelong Learning in Neurology
https://www.readbyqxmd.com/read/28777170/brain-circuitry-controlling-sleep-and-wakefulness
#15
Richard L Horner, John H Peever
PURPOSE OF REVIEW: This article outlines the fundamental brain mechanisms that control sleep-wake patterns and reviews how pathologic changes in these control mechanisms contribute to common sleep disorders. RECENT FINDINGS: Discrete but interconnected clusters of cells located within the brainstem and hypothalamus comprise the circuits that generate wakefulness, non-rapid eye movement (non-REM) sleep, and REM sleep. These clusters of cells use specific neurotransmitters, or collections of neurotransmitters, to inhibit or excite their respective sleep- and wake-promoting target sites...
August 2017: Continuum: Lifelong Learning in Neurology
https://www.readbyqxmd.com/read/28770440/clinical-significance-of-rem-sleep-behavior-disorders-and-other-non-motor-symptoms-of-parkinsonism
#16
REVIEW
Hong Jin, Jin-Ru Zhang, Yun Shen, Chun-Feng Liu
Rapid eye movement sleep behavior disorder (RBD) is one of the most common non-motor symptoms of parkinsonism, and it may serve as a prodromal marker of neurodegenerative disease. The mechanism underlying RBD is unclear. Several prospective studies have reported that specific non-motor symptoms predict a conversion risk of developing a neurodegenerative disease, including olfactory dysfunction, abnormal color vision, autonomic dysfunction, excessive daytime sleepiness, depression, and cognitive impairment. Parkinson's disease (PD) with RBD exhibits clinical heterogeneity with respect to motor and non-motor symptoms compared with PD without RBD...
August 3, 2017: Neuroscience Bulletin
https://www.readbyqxmd.com/read/28756177/dementia-with-lewy-bodies-and-parkinson-s-disease-dementia-become-the-same-disease
#17
Joseph H Friedman
INTRODUCTION: The question whether DLB and PDD are distinct disorders has been debated in several forums. The two disorders, once parkinsonism is present in DLB, cannot be distinguished on clinical or pathological grounds. The conundrum exists for those DLB patients who do not yet have parkinsonism, and raises the parallel with patients who have Rapid Eye Movement Behavior Disorder but have not yet manifested parkinsonian signs. METHODS: A literature review was summarized to justify classification as a single disorder...
July 18, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28739359/prevalence-of-sleep-abnormalities-in-indian-children-with-autism-spectrum-disorder-a-cross-sectional-study
#18
Ravindranath Aathira, Sheffali Gulati, Manjari Tripathi, Garima Shukla, Biswaroop Chakrabarty, Savita Sapra, Nitika Dang, Anupama Gupta, Madhulika Kabra, Ravindra Mohan Pandey
BACKGROUND: The prevalence of autism spectrum disorder (ASD) is on the rise. Apart from the core behavioral issues of impaired communication, impaired social interaction, and restricted and/or repeated behavioral phenotype, comorbidities like sleep problems are increasingly getting recognized as important determinants of management and overall quality of life. METHODS: This study was conducted in a tertiary care teaching hospital in northern India over a two year period...
September 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28654799/neurobehavioral-consequences-of-continuous-spike-and-waves-during-slow-sleep-csws-in-a-pediatric-population-a-pattern-of-developmental-hindrance
#19
Valentina De Giorgis, Melissa Filippini, Joyce Ann Macasaet, Silvia Masnada, Pierangelo Veggiotti
INTRODUCTION: Continuous spike and waves during slow sleep (CSWS) is a typical EEG pattern defined as diffuse, bilateral and recently also unilateral or focal localization spike-wave occurring in slow sleep or non-rapid eye movement sleep. Literature results so far point out a progressive deterioration and decline of intellectual functioning in CSWS patients, i.e. a loss of previously normally acquired skills, as well as persistent neurobehavioral disorders, beyond seizure and EEG control...
June 24, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28649609/insomnia-and-somnolence-in-idiopathic-rbd-a-prospective-cohort-study
#20
Ronald B Postuma, Jean-François Gagnon, Amelie Pelletier, Jacques Y Montplaisir
Although some sleep disorders are markers of prodromal Parkinson's disease and dementia with Lewy bodies, it is unclear whether insomnia and somnolence can predict disease. We assessed a large cohort of patients with idiopathic rapid eye movement sleep behavior disorder and age/sex matched controls, comparing the Epworth sleepiness scale, the Insomnia Severity Index, the Pittsburgh Sleep Quality Index, and polysomnographic variables. In those with repeated scales, we assessed change over time. Finally, we assessed whether sleep abnormalities predicted defined neurodegenerative disease...
2017: NPJ Parkinson's Disease
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