Results 61 to 70 of about 156,934 (328)

Rapid Eye Movement (REM) rebound on initial exposure to CPAP therapy: a systematic review and meta-analysis

open access: yesSleep Science and Practice, 2017
Objective Rapid Eye Movement (REM) rebound is a polysomnographic phenomenon where a substantial increase in REM sleep is noted in patients with untreated obstructive sleep apnea (OSA) when first undergoing continuous positive airway pressure (CPAP ...
Gaurav Nigam   +2 more
doaj   +1 more source

Characterization of Sleep Stages by Correlations of Heartbeat Increments

open access: yes, 2002
We study correlation properties of the magnitude and the sign of the increments in the time intervals between successive heartbeats during light sleep, deep sleep, and REM sleep using the detrended fluctuation analysis method.
A. Bunde   +45 more
core   +1 more source

Effects of valerian extract on the sleep-wake cycle in sleep-disturbed rats. [PDF]

open access: yes, 2005
The present study was performed to investigate the effects of valerian extract on the sleep-wake cycle using sleep-disturbed model rats. A significant shortening in sleep latency was observed with valerian extract at doses of 1000 and 3000 mg/kg.
Fujimura, Katsuyuki   +3 more
core   +1 more source

REM Sleep Characteristics in Narcolepsy and REM Sleep Behavior Disorder [PDF]

open access: yesSleep, 2007
To assess the presence of polysomnographic characteristics of REM sleep behavior disorder (RBD) in narcolepsy; and to quantify REM sleep parameters in patients with narcolepsy, in patients with "idiopathic" RBD, and in normal controls.Sleep laboratory studySixteen patients with narcolepsy and cataplexy matched for age and sex with 16 patients with ...
Yves, Dauvilliers   +5 more
openaire   +2 more sources

Dorsal Raphe VIP Neurons Are Critical for Survival‐Oriented Vigilance

open access: yesAdvanced Science, EarlyView.
DRNVIP neurons in mice and primates are strategically positioned to influence the central extended amygdala via feedback loops. They regulate the excitability of PKC‐δ neurons in the ovBNST and CeA through glutamate release. Their ablation heightens activity in these regions, disrupts active‐phase sleep architecture, enhances risk assessment behaviors ...
Adriane Guillaumin   +15 more
wiley   +1 more source

Melanin-concentrating hormone neurons contribute to dysregulation of rapid eye movement sleep in narcolepsy

open access: yesNeurobiology of Disease, 2018
The lateral hypothalamus contains neurons producing orexins that promote wakefulness and suppress REM sleep as well as neurons producing melanin-concentrating hormone (MCH) that likely promote REM sleep.
Fumito Naganuma   +5 more
doaj   +1 more source

Effects Of 4-thiazolidinone Derivatives Les-2658 And Les-1205 On Sleep - Wakefulness Cycle In Kindled Rats [PDF]

open access: yes, 2017
The research is dedicated to in-depth study of neurotrophic and antiepileptic properties of original potential anticonvulsant agents from 4-thiazolidinones – LES-2658 (5-(3-nitro-benzylidene)-2-(thiazol-2-ylimino)-thiazolidin-4-one) and LES-1205 ([2,4 ...
Lesyk, R. (Roman)   +2 more
core   +2 more sources

Association between Human Leukocyte Antigen Alleles and Neuropathological Outcomes in Lewy Body Disease

open access: yesAnnals of Neurology, EarlyView.
Objective Lewy body disease (LBD) is a complex neurodegenerative disorder characterized by the accumulation of misfolded α‐synuclein in the brain. Neuroinflammation has long been implicated in LBD pathogenesis, and recent genetic studies in Parkinson's disease (a clinical manifestation of LBD) have shown consistent association with the human leukocyte ...
Marios Gavrielatos   +34 more
wiley   +1 more source

Neural circuitry of rapid eye movement sleep homeostasis: Mechanistic insights and pathological implications

open access: yesSleep Research
Rapid eye movement (REM) sleep is a unique brain state crucial for emotion, memory, and plasticity. Unlike well‐understood non‐REM (NREM) sleep homeostasis, REM sleep homeostasis remains less clearly defined.
Ting He
doaj   +1 more source

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