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the effect of sleep deprivation

Cong Lu, Yan Wang, Jingwei Lv, Ning Jiang, Bei Fan, Lina Qu, Yinghui Li, Shanguang Chen, Fengzhong Wang, Xinmin Liu
Sleep deprivation (SD) negatively caused cognitive deficit, which was associated with oxidative stress induced damage. Ginsenoside Rh2 had the ability to protect against damage caused by reactive oxygen species in vitro, showing antioxidant property. Therefore, it was hypothesized that Ginsenoside Rh2 could prevent SD-induced cognitive deficit via its antioxidant properties. In this study, the effect of Ginsenoside Rh2 on memory impairment induced by sleep deprivation was investigated. The mice were sleep deprived continuously for 14 days using our self-made Sleep Interruption Apparatus (SIA)...
March 12, 2018: Behavioural Brain Research
Tristan Martin, Antoine Gauthier, Zhang Ying, Nicolas Benguigui, Sebastien Moussay, Jan Bulla, Damien Davenne, Nicolas Bessot
The aim of the study was to test the effect of total sleep deprivation on performance and time-of-day pattern of Subjective Visual Vertical (SVV) and postural control. Nineteen healthy young participants (4 females and 15 males 21.9 {plus minus} 1.2 years) were engaged in two counterbalanced experimental sessions with or without total sleep deprivation. Oral temperature, Karolinska sleepiness scale and visual analogic scale for fatigue, postural control and SVV were randomly measured every 4h, from 6:00 h to 22:00 h...
March 15, 2018: Journal of Applied Physiology
Jan Cosgrave, Katharina Wulff, Philip Gehrman
PURPOSE OF REVIEW: The review is designed to give an overview of the latest developments in research exploring the relationship between sleep and psychosis, with particular attention paid to the evidence for a causal relationship between the two. RECENT FINDINGS: The most interesting avenues currently in pursuit are focused upon sleep spindle deficits which may hallmark an endophenotype; explorations of the continuum of psychotic experiences, and experimental manipulations to explore the evidence for bidirectional causality; inflammatory markers, psychosis and sleep disturbances and finally, treatment approaches for sleep in psychosis and the subsequent impact on positive experiences...
March 13, 2018: Current Opinion in Psychiatry
Marie E Gaine, Snehajyoti Chatterjee, Ted Abel
Sleep deprivation disrupts the lives of millions of people every day and has a profound impact on the molecular biology of the brain. These effects begin as changes within a neuron, at the DNA and RNA level, and result in alterations in neuronal plasticity and dysregulation of many cognitive functions including learning and memory. The epigenome plays a critical role in regulating gene expression in the context of memory storage. In this review article, we begin by describing the effects of epigenetic alterations on the regulation of gene expression, focusing on the most common epigenetic mechanisms: (i) DNA methylation; (ii) histone modifications; and (iii) non-coding RNAs...
2018: Frontiers in Neural Circuits
Marjolein Schoonakker, Johanna H Meijer, Tom Deboer, Karim Fifel
The Lateral Hypothalamus (LH) is a relatively large hypothalamic structure containing several neurochemically different, but spatially intermingled, neuronal populations. While the role of these neurons in the homeostatic regulation of diverse physiological and behavioural functions such as sleep/wake cycle has been studied extensively, the impact of sleep history on the electrophysiology of the LH and whether this effect is homogenous across LH is unknown. By combining Multi-unit Activity (MUA) recordings in different regions of LH with electroencephalogram recordings in freely moving rats, we unravelled a heterogeneity of neural-activity patterns within different sub-regions of LH...
March 7, 2018: Sleep
Patrick C Dolder, Petra Strajhar, Patrick Vizeli, Alex Odermatt, Matthias E Liechti
RATIONALE: Amphetamines are used as medications but are also misused as cognitive enhancers by healthy subjects and may have additional effects on social cognition. METHODS: We investigated the acute effects of single, high, equimolar doses of D-amphetamine (40 mg) and lisdexamfetamine (100 mg) on social cognition and cognitive performance using a randomized, placebo-controlled, double-blind, cross-over design in 24 healthy volunteers. Effects on social cognition were assessed using the Facial Emotion Recognition Task (FERT), Multifaceted Empathy Test (MET), and Sexual Arousal Task (SAT)...
February 9, 2018: Psychopharmacology
Shelley Hershner, Louise M O'Brien
STUDY OBJECTIVES: Sleep deprivation can impair attention, mood, and performance; however, few effective sleep education programs are available. The aim of this study was to assess the effect of a sleep education website, Sleep to Stay Awake (, on sleep behaviors of college students. METHODS: College students (age 18 years or older) attending a public Midwestern university were randomized to control or intervention groups. All subjects completed baseline surveys that included demographics, Pittsburgh Sleep Quality Index, Patient Health Questionnaire, sleep knowledge, and measures of sleepiness and circadian rhythm...
February 27, 2018: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
Iain Brassington
The lack of sleep is a significant problem in the modern world. The structure of the economy means that 24 hour working is required from some of us, sometimes because we are expected to be able to respond to share-price fluctuations on the other side of the planet, sometimes because we are expected to serve kebabs to people leaving nightclubs, and sometimes because lives depend on it. The immediate effect is that we feel groggy; but there may be much more sinister long-term effects of persistent sleep deprivation and disruption, the evidence for which is significant, and worth taking seriously...
April 2018: Cambridge Quarterly of Healthcare Ethics: CQ: the International Journal of Healthcare Ethics Committees
Miranda Occhionero, Piercarla Cicogna, Maria Jose Esposito
The aim of the present study was to deepen knowledge about the effect of a lowered vigilance state on time-based prospective memory (TBPM) performance. For this purpose 2 TBPM tasks (primary and interpolated), which shared a portion of the retention interval, and 3 reasoning tasks, as ongoing activities, were administered after total sleep deprivation and in a regular sleep condition. The results showed a detrimental effect of sleep deprivation on prospective memory performance and a partial dissociation between clock-checking behavior and time estimation for prospective compliance...
April 2017: American Journal of Psychology
Jie Bi, Amita Sehgal, Julie A Williams, Yu-Feng Wang
Wolbachia are endosymbiotic bacteria present in a wide range of insects. Although their dramatic effects on host reproductive biology have been well studied, the effects of Wolbachia on sleep behavior of insect hosts are not well documented. In this study, we report that Wolbachia infection caused an increase of total sleep time in both male and female Drosophila melanogaster. The increase in sleep was associated with an increase in the number of nighttime sleep bouts or episodes, but not in sleep bout duration...
February 27, 2018: Journal of Insect Physiology
Sanming Li, Ke Ning, Jing Zhou, Yuli Guo, Houjian Zhang, Yu Zhu, Liying Zhang, Changkai Jia, Yongxiong Chen, Peter Sol Reinach, Zuguo Liu, Wei Li
Sleep deficiency is a common public health problem associated with many diseases, such as obesity and cardiovascular disease. In this study, we established a sleep deprivation (SD) mouse model using a 'stick over water' method and observed the effect of sleep deficiency on ocular surface health. We found that SD decreased aqueous tear secretion; increased corneal epithelial cell defects, corneal sensitivity, and apoptosis; and induced squamous metaplasia of the corneal epithelium. These pathological changes mimic the typical features of dry eye...
March 2, 2018: Experimental & Molecular Medicine
Jinxiao Zhang, Esther Yuet Ying Lau, Janet H Hsiao
Resting-state spontaneous neural activities consume far more biological energy than stimulus-induced activities, suggesting their significance. However, existing studies of sleep loss and emotional functioning have focused on how sleep deprivation modulates stimulus-induced emotional neural activities. The current study aimed to investigate the impacts of sleep deprivation on the brain network of emotional functioning using electroencephalogram during a resting state. Two established resting-state electroencephalogram indexes (i...
March 1, 2018: Journal of Sleep Research
Liu Yang, Yu Lei, Lubin Wang, Pinhong Chen, Shan Cheng, Shanshan Chen, Jicheng Sun, Yanyan Li, Yihan Wang, Wendong Hu, Zheng Yang
Sleep deprivation (SD) can alter the intrinsic brain functional organization. However, its effects on intrinsic low-frequency connectivity in the whole brain have not been well characterized. In this study, we used voxel-based functional connectivity density (FCD) analysis to investigate the effects of SD on the spontaneous functional organization of the brain. Thirty-seven healthy participants underwent this within-subject crossover functional magnetic resonance imaging (fMRI) study during rested wakefulness (RW) and after 36 h of total sleep deprivation (TSD)...
February 27, 2018: Brain Imaging and Behavior
Thomas Raap, Rianne Pinxten, Marcel Eens
Artificial light at night (ALAN) is a widespread and increasing environmental pollutant with known negative impacts on animal physiology and development. Physiological effects could occur through sleep disruption and deprivation, but this is difficult to quantify, especially in small developing birds. Sleep loss can potentially be quantified by using oxalate, a biomarker for sleep debt in adult humans and rats. We examined the effect of ALAN on oxalate in free-living developing great tits ( Parus major ) as effects during early-life could have long-lasting and irreversible consequences...
2018: Conservation Physiology
Megha Amar, Birendra Nath Mallick
Rapid eye movement sleep (REMS) plays an important role in maintaining brain excitability by regulating noradrenaline (NA) level and Na-K ATPase activity. We showed earlier that REMS deprivation (REMSD) associated elevated NA increased neuronal, while decreased glial Na-K ATPase activity. However, our knowledge was insufficient on how the REMSD-associated effect is sustained particularly under chronic condition. Using Neuro-2a cells as a model, we investigated the molecular mechanism of NA-induced increase in mRNA expression of Na-K ATPase subunit and the enzyme activity...
February 22, 2018: Brain Research Bulletin
Sabine Hellwig, Lars Frings, Annette Masuch, Werner Vach, Katharina Domschke, Claus Normann, Philipp T Meyer
We investigated if sleep deprivation (SD) and electroconvulsive therapy (ECT) affect striatal dopamine transporter (DAT) availability assessed by single-photon emission computed tomography (SPECT) and123 I-FP-CIT, if dopamine transporter gene (SLC6A3; DAT) variation modifies aforementioned parameters, and if SD response or SD-induced DAT changes correlate with ECT response. Sixteen patients with major depression (MDD) referred for ECT and 12 matched controls were prospectively recruited for imaging and SLC6A3 VNTR genotyping...
February 23, 2018: Journal of Neural Transmission
Amandine Valomon, Sebastian C Holst, Alessandro Borrello, Susanne Weigend, Thomas Müller, Wolfgang Berger, Michael Sommerauer, Christian R Baumann, Hans-Peter Landolt
Tolcapone, a brain penetrant selective inhibitor of catechol-O-methyltransferase (COMT) devoid of psychostimulant properties, improves cognition and cortical information processing in rested volunteers, depending on the genotype of the functional Val158Met polymorphism of COMT. The impact of this common genetic variant on behavioral and neurophysiological markers of increased sleep need after sleep loss is controversial. Here we investigated the potential usefulness of tolcapone to mitigate consequences of sleep deprivation on lapses of sustained attention, and tested the hypothesis that dopamine signaling in the prefrontal cortex (PFC) causally contributes to neurobehavioral and neurophysiological markers of sleep homeostasis in humans...
February 5, 2018: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
Jeremy C Borniger, Kyra Ungerleider, Ning Zhang, Kate Karelina, Ulysses J Magalang, Zachary M Weil
Traumatic brain injuries (TBI) are a common and costly ongoing public health concern. Injuries that occur during childhood development can have particularly profound and long-lasting effects. One common consequence and potential mediator of negative outcomes of TBI is sleep disruption which occurs in a substantial proportion of TBI patients. These individuals report greater incidences of insomnia and sleep fragmentation combined with a greater overall sleep requirement meaning that many patients are chronically sleep-deprived...
February 9, 2018: Neuroscience
Chantalle Briggs, Michiru Hirasawa, Kazue Semba
Glutamate transporter 1 (GLT1) is the main astrocytic transporter that shapes glutamatergic transmission in the brain. However, whether this transporter modulates sleep/wake regulatory neurons is unknown. Using quantitative immunohistochemical analysis, we assessed perisomatic GLT1 apposition with sleep/wake neurons in the male rat following 6-h sleep deprivation (SD) or following 6-h undisturbed conditions when animals were mostly asleep (Rest). We found that SD decreased perisomatic GLT1 apposition with wake-promoting orexin (ORX) neurons in the lateral hypothalamus (LH) compared to Rest...
February 5, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
Rodney A Gabriel, Alison M A'Court, Ulrich H Schmidt, Richard P Dutton, Richard D Urman
STUDY OBJECTIVE: There is a lack of large, multi-institutional studies analyzing the association of timing of emergency surgery with death occurring either intraoperatively or in the recovery room setting. The primary objective of this study was to determine if time of day for emergency surgeries was associated with mortality. DESIGN: Retrospective analysis. SETTING: U.S. healthcare facilities. PATIENTS: Adult patients undergoing emergency surgery and general anesthesia...
February 7, 2018: Journal of Clinical Anesthesia
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