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https://www.readbyqxmd.com/read/29777288/time-shifting-effects-of-methylphenidate-on-daily-rhythms-in-the-diurnal-rodent-arvicanthis-ansorgei
#1
Jorge Mendoza, Hester C van Diepen, Rob Rodrigues Pereira, Johanna H Meijer
People suffering of attention-deficit/hyperactivity disorder (ADHD) and treated with the psychostimulant methylphenidate (MPH) show sleep-wake cycle and daily rhythm alterations despite the beneficial effects of MPH on behavioral symptoms (i.e., hyperactivity, attention). In nocturnal rodents (i.e., mice), chronic exposure to MPH alters the neural activity of the circadian clock in the suprachiasmatic nucleus (SCN), behavioral rhythms, and the sleep-wake cycle. Here, we studied the effects of MPH on daily rhythms of behavior and body temperature of the diurnal rodent Arvicanthis ansorgei...
May 18, 2018: Psychopharmacology
https://www.readbyqxmd.com/read/29776624/cognition-and-objectively-measured-sleep-duration-in-children-a-systematic-review-and-meta-analysis
#2
Michelle A Short, Sarah Blunden, Gabrielle Rigney, Lisa Matricciani, Scott Coussens, Chelsea M Reynolds, Barbara Galland
BACKGROUND: Sleep recommendations are widely used to guide communities on children's sleep needs. Following recent adjustments to guidelines by the National Sleep Foundation and the subsequent consensus statement by the American Academy of Sleep Medicine, we undertook a systematic literature search to evaluate the current evidence regarding relationships between objectively measured sleep duration and cognitive function in children aged 5 to 13 years. METHODS: Cognitive function included measures of memory, attention, processing speed, and intelligence in children aged 5 to 13 years...
June 2018: Sleep Health
https://www.readbyqxmd.com/read/29766217/involvement-of-extrasynaptic-glutamate-in-physiological-and-pathophysiological-changes-of-neuronal-excitability
#3
REVIEW
Balázs Pál
Glutamate is the most abundant neurotransmitter of the central nervous system, as the majority of neurons use glutamate as neurotransmitter. It is also well known that this neurotransmitter is not restricted to synaptic clefts, but found in the extrasynaptic regions as ambient glutamate. Extrasynaptic glutamate originates from spillover of synaptic release, as well as from astrocytes and microglia. Its concentration is magnitudes lower than in the synaptic cleft, but receptors responding to it have higher affinity for it...
May 15, 2018: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/29750549/does-breaking-up-prolonged-sitting-when-sleep-restricted-affect-postprandial-glucose-responses-and-subsequent-sleep-architecture-a-pilot-study
#4
Grace E Vincent, Sarah M Jay, Charli Sargent, Katya Kovac, Michele Lastella, Corneel Vandelanotte, Nicola D Ridgers, Sally A Ferguson
This pilot study investigated the impact of breaking up prolonged sitting with light-intensity walking on postprandial glucose responses and sleep architecture. In a randomized, counterbalanced, crossover design, six healthy males completed a sitting condition and an active condition (sitting interrupted with light-intensity walking) for three consecutive days, following 5-h sleep opportunities at night. Postprandial glucose response and sleep (time spent in all stages) was assessed. Breaking up prolonged sitting with light-intensity walking did not affect postprandial glucose responses in sleep-restricted participants; however a small increase (~9 min) in slow-wave sleep was observed...
May 11, 2018: Chronobiology International
https://www.readbyqxmd.com/read/29746692/increased-risk-of-upper-respiratory-infection-in-military-recruits-who-report-sleeping-less-than-6-h-per-night
#5
Laurel M Wentz, Mark D Ward, Claire Potter, Samuel J Oliver, Sarah Jackson, Rachel M Izard, Julie P Greeves, Neil P Walsh
Introduction: Professional sleep associations recommend 7-9 h of sleep per night for young adults. Habitually sleeping less than 6 h per night has been shown to increase susceptibility to common cold in otherwise healthy, adult civilians. However, no investigations have examined the importance of sleep duration on upper respiratory tract infection (URTI) and loss of training days in military recruits. The purpose of this study was to describe self-reported sleep duration in a large cohort of military recruits and to assess the relationship between reported sleep duration and incidence of URTI's...
May 9, 2018: Military Medicine
https://www.readbyqxmd.com/read/29746388/effect-of-high-dose-short-duration-%C3%AE-alanine-supplementation-on-circulating-il-10-concentrations-during-intense-military-training
#6
Jay R Hoffman, Yftach Gepner, Mattan W Hoffman, Hila Zelicha, Shachar Shapira, Ishay Ostfeld
Hoffman, JR, Gepner, Y, Hoffman, M, Zelicha, H, Shapira, S, and Ostfeld, I. Effect of high dose, short-duration β-alanine supplementation on circulating IL-10 concentrations during intense military training. J Strength Cond Res XX(X): 000-000, 2018-This study examined the effect of β-alanine as a potential anti-inflammatory agent during intense military training. Twenty soldiers (20.1 ± 0.6 years) from an elite combat unit were randomly assigned to either a β-Alanine (BA) or placebo (PL) group. Soldiers were provided with 12 g·d of either BA or PL for 7 days between 2 intensive periods of navigational training and restricted sleep...
May 7, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29741724/myelin-modifications-after-chronic-sleep-loss-in-adolescent-mice
#7
Michele Bellesi, John Douglas Haswell, Luisa de Vivo, William Marshall, Patrick H Roseboom, Giulio Tononi, Chiara Cirelli
Study Objectives: Previous studies found that sleep loss can suppress the expression of genes implicated in myelination and can have adverse effects on oligodendrocyte precursor cells. On the other hand, sleep may favor myelination by promoting the expression of genes involved in its formation and maintenance. Albeit limited, these results suggest that sleep loss can have detrimental effects on the formation and maintenance of myelin. Methods: Here, we tested this hypothesis by evaluating ultrastructural modifications of myelin in two brain regions (corpus callosum and lateral olfactory tract) of mice exposed to different periods of sleep loss, from a few hours of sleep deprivation to ~5 days of chronic sleep restriction...
May 1, 2018: Sleep
https://www.readbyqxmd.com/read/29724123/evidence-supporting-clinical-use-of-proportional-assist-ventilation-a-systematic-review-and-meta-analysis-of-clinical-trials
#8
Bharath Kumar Tirupakuzhi Vijayaraghavan, Shatha Hamed, Aditi Jain, Timothy Chimunda, Irene Telias, Jan O Friedrich, Karen E A Burns
BACKGROUND: While proportional assist ventilation (PAV), generates pressure in proportion to effort without a preselected target, proportional assist ventilation plus (PAV+) measures compliance and resistance, calculates work of breathing, and adjusts support to a preset assistance level. OBJECTIVE: To summarize randomized controlled trials (RCTs) comparing invasive or noninvasive PAV or PAV+ in critically ill patients. DATA SOURCES: We searched multiple databases to April 2017 without language restrictions and conference proceedings from 5 meetings to identify randomized parallel-group and crossover RCTs that compared invasive or noninvasive PAV or PAV+ to another mode in critically ill adults or children and reported at least 1 clinically important outcome...
January 1, 2018: Journal of Intensive Care Medicine
https://www.readbyqxmd.com/read/29722893/response-to-chronic-sleep-restriction-extension-and-total-sleep-deprivation-in-humans-adaptation-or-preserved-sleep-homeostasis
#9
Jelena Skorucak, Emma Arbon, Derk-Jan Dijk, Peter Achermann
Sleep is regulated by a homeostatic process which in the two-process model of human sleep regulation is represented by EEG slow-wave activity (SWA). Many studies of acute manipulation of wake duration have confirmed the precise homeostatic regulation of SWA in rodents and humans. However, some chronic sleep restriction studies in rodents show that the sleep homeostatic response, as indexed by SWA, is absent or diminishes suggesting adaptation occurs. Here, we investigate the response to 7 days of sleep restriction (6 h time in bed) and extension (10 h time in bed) as well as the response to subsequent total sleep deprivation in 35 healthy participants in a cross-over design...
May 2, 2018: Sleep
https://www.readbyqxmd.com/read/29722890/the-association-between-obstructive-sleep-apnoea-and-metabolic-abnormalities-in-women-with-polycystic-ovary-syndrome-a-systematic-review-and-meta-analysis
#10
Hassan Kahal, Ioannis Kyrou, Olalekan Uthman, Anna Brown, Samantha Johnson, Peter Wall, Andrew Metcalfe, Abd A Tahrani, Harpal S Randeva
Study Objectives: In this systematic review and meta-analysis, we aimed to examine the relationship between obstructive sleep apnoea (OSA) and metabolic abnormalities in women with polycystic ovary syndrome (PCOS). Methods: Electronic databases (Medline, Embase, Cinahl, PsycInfo, Scopus, Web of Science, Opengrey, CENTRAL), conference abstracts, and reference lists of relevant articles were searched. No restriction was applied for language or publication status. Results: Six studies involving 252 participants were included...
May 2, 2018: Sleep
https://www.readbyqxmd.com/read/29704612/dynamic-functional-connectivity-and-its-behavioral-correlates-beyond-vigilance
#11
Amiya Patanaik, Jesisca Tandi, Ju Lynn Ong, Chenhao Wang, Juan Zhou, Michael W L Chee
Fluctuations in resting-state functional connectivity and global signal have been found to correspond with vigilance fluctuations, but their associations with other behavioral measures are unclear. We evaluated 52 healthy adolescents after a week of adequate sleep followed by five nights of sleep restriction to unmask inter-individual differences in cognition and mood. Resting state scans obtained at baseline only, analyzed using sliding window analysis, consistently yielded two polar dynamic functional connectivity states (DCSs) corresponding to previously reported 'low arousal' and 'high arousal' states...
April 25, 2018: NeuroImage
https://www.readbyqxmd.com/read/29703951/acceptability-tolerability-and-potential-efficacy-of-cognitive-behavioural-therapy-for-insomnia-disorder-subtypes-defined-by-polysomnography-a-retrospective-cohort-study
#12
Christopher B Miller, Colin A Espie, Delwyn J Bartlett, Nathaniel S Marshall, Christopher J Gordon, Ronald R Grunstein
In this retrospective cohort study, we describe acceptability, tolerability and potential efficacy of cognitive behavioural therapy (CBT) in Insomnia Disorder subtypes, derived from polysomnography (PSG): insomnia with normal-sleep duration (I-NSD) and insomnia with short-sleep duration (I-SSD). All research volunteers were offered access to digital CBT, single component sleep restriction therapy and face-to-face group CBT. Follow-up occurred at three months post-treatment using the insomnia severity index (ISI)...
April 27, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29703857/the-relationship-between-sleep-duration-and-fruit-vegetable-intakes-in-uk-adults-a-cross-sectional-study-from-the-national-diet-and-nutrition-survey
#13
Essra A Noorwali, Janet E Cade, Victoria J Burley, Laura J Hardie
OBJECTIVES: There is increasing evidence to suggest an association between sleep and diet. The aim of the present study was to examine the association between sleep duration and fruit/vegetable (FV) intakes and their associated biomarkers in UK adults. DESIGN: Cross-sectional. SETTING: Data from The National Diet and Nutrition Survey. PARTICIPANTS: 1612 adults aged 19-65 years were included, pregnant/breastfeeding women were excluded from the analyses...
April 27, 2018: BMJ Open
https://www.readbyqxmd.com/read/29703767/encephalitis-with-mglur5-antibodies-symptoms-and-antibody-effects
#14
Marianna Spatola, Lidia Sabater, Jesús Planagumà, Eugenia Martínez-Hernandez, Thaís Armangué, Harald Prüss, Takahiro Iizuka, Ruben L Caparó Oblitas, Jean-Christophe Antoine, Richard Li, Nicholas Heaney, Niall Tubridy, Elvira Munteis Olivas, Myrna R Rosenfeld, Francesc Graus, Josep Dalmau
OBJECTIVE: To report the clinical features of 11 patients with metabotropic glutamate receptor 5 (mGluR5) antibody-associated encephalitis, immunoglobulin G (IgG) subclass, and effects of the antibodies on neuronal mGluR5 clusters. METHODS: Clinical information was retrospectively obtained from referring physicians. Antibodies to mGluR5 and IgG subclasses were determined with brain immunohistochemistry and cell-based assays. The effects of the antibodies were examined on rat hippocampal neurons with reported techniques...
April 27, 2018: Neurology
https://www.readbyqxmd.com/read/29700848/non-pharmacological-therapies-for-sleep-disturbances-in-people-with-parkinson-s-disease-a-systematic-review
#15
REVIEW
JuHee Lee, Yonji Kim, YieLin Kim
AIM: To determine the effectiveness of non-pharmacological therapies for sleep disturbances in people with Parkinson's disease. BACKGROUND: Sleep disturbances, which are common in people with Parkinson's disease, may diminish their quality of life. Non-pharmacological therapies are preferred over pharmacological therapies for improving sleep quality, owing to fewer adverse effects. DESIGN: Systematic literature review. DATA SOURCES: A systematic search of eight databases and hand searching was conducted for papers published between 1 January 1 2000 - 1 January 2016...
April 27, 2018: Journal of Advanced Nursing
https://www.readbyqxmd.com/read/29693461/an-update-on-pharmacotherapy-of-autism-spectrum-disorder-in-children-and-adolescents
#16
Ritu Goel, Ji Su Hong, Robert L Findling, Na Young Ji
To date, no medication is proven to be effective in treating core symptoms of autism spectrum disorder (ASD). Psychotropic medications are widely used to target emotional and behavioural symptoms in ASD. This article reviewed evidence for pharmacotherapy, novel therapeutic agents, and Complementary and Alternative Medicine (CAM) in children and adolescents with ASD. Currently, only risperidone and aripiprazole have been approved by the US Food and Drug Administration (FDA) for treatment of irritability associated with ASD in children and adolescents...
April 25, 2018: International Review of Psychiatry
https://www.readbyqxmd.com/read/29680789/neurophysiological-differences-in-the-adolescent-brain-following-a-single-night-of-restricted-sleep-a-7t-fmri-study
#17
Jennifer L Robinson, Stephen A Erath, Rajesh K Kana, Mona El-Sheikh
Sleep deprivation in youth has garnered international attention in recent years, as correlational studies have demonstrated significant relationships between lack of sleep and detrimental behavioral and academic outcomes. However, no study to date has systematically examined the neurophysiological consequences of a single night of sleep restriction (i.e., 4 h) in adolescents using ultra-high field functional neuroimaging. Much of what we know regarding the neural consequences of sleep deprivation has come from the adult literature, and among those studies, the majority use region of interest (ROI) approaches, thus disregarding the dynamic mechanisms that may subserve the behavioral effects of sleep restriction...
April 7, 2018: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/29680427/daytime-sleepiness-driving-performance-reaction-time-and-inhibitory-control-during-sleep-restriction-therapy-for-chronic-insomnia-disorder
#18
Hannah Whittall, Meg Pillion, Michael Gradisar
BACKGROUND: Sleep restriction therapy (SRT) is a largely untested single treatment component of cognitive-behaviour therapy for insomnia. To date, the evidence for contraindications for SRT is limited to very few studies. The present study investigated the objective and subjective daytime consequences during the acute phase of SRT for adults diagnosed with Chronic Insomnia Disorder. METHODS: Sixteen adults (age = 36.3 ± 13.4 yrs, 12 females, 4 males) underwent SRT for their insomnia over a two week period based on recommendations by Miller and colleagues (2014) [6]...
May 2018: Sleep Medicine
https://www.readbyqxmd.com/read/29680417/gender-specific-independent-and-combined-dose-response-association-of-napping-and-night-sleep-duration-with-type-2-diabetes-mellitus-in-rural-chinese-adults-the-ruraldiab-study
#19
Ruihua Liu, Yuqian Li, Zhenxing Mao, Xiaotian Liu, Haiqing Zhang, Kaili Yang, Honglei Zhang, Runqi Tu, Xinling Qian, Jingjing Jiang, Ronghai Bie, Chongjian Wang
OBJECTIVE: The aim of this study was to explore the independent and combined dose-response association of napping and night sleep duration with type 2 diabetes mellitus (T2DM) among different genders in the rural Chinese population. METHODS: For this research, a total of 19,257 participants were enrolled in the Rural Diabetes, Obesity and Lifestyle (RuralDiab) study. Napping and night sleep duration were assessed using the Pittsburgh Sleep Quality Index (PSQI). Restricted cubic splines and logistic regression were used to estimate the relationship between napping and night sleep duration with T2DM...
May 2018: Sleep Medicine
https://www.readbyqxmd.com/read/29669906/cortical-and-subcortical-gray-matter-bases-of-cognitive-deficits-in-rem-sleep-behavior-disorder
#20
Shady Rahayel, Ronald B Postuma, Jacques Montplaisir, Daphné Génier Marchand, Frédérique Escudier, Malo Gaubert, Pierre-Alexandre Bourgouin, Julie Carrier, Oury Monchi, Sven Joubert, Frédéric Blanc, Jean-François Gagnon
OBJECTIVE: To investigate cortical and subcortical gray matter abnormalities underlying cognitive impairment in patients with REM sleep behavior disorder (RBD) with or without mild cognitive impairment (MCI). METHODS: Fifty-two patients with RBD, including 17 patients with MCI, were recruited and compared to 41 controls. All participants underwent extensive clinical assessments, neuropsychological examination, and 3-tesla MRI acquisition of T1 anatomical images...
April 18, 2018: Neurology
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