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https://www.readbyqxmd.com/read/29244799/prenatal-and-early-postnatal-measures-of-brain-development-and-childhood-sleep-patterns
#1
Desana Kocevska, Maria E Verhoeff, Selma Meinderts, Vincent W Jaddoe, Frank C Verhulst, Sabine J Roza, Maartje P C M Luijk, Henning Tiemeier
BACKGROUND: Brain development underlies maturation of sleep patterns throughout childhood. Intrauterine head growth -marker of early neurodevelopment- has not been associated with childhood sleep characteristics. We explored associations between ultrasonographic measures of prenatal and early postnatal neurodevelopment and childhood sleep. METHODS: Six-thousand-five-hundred-twenty-eight children from a population-based birth cohort (Generation R) were included. Head circumference (HC) and lateral ventricles size were assessed with mid- and late-pregnancy fetal ultrasounds, and with cranial ultrasound 3-20 weeks postnatally...
December 15, 2017: Pediatric Research
https://www.readbyqxmd.com/read/29244798/amplitude-integrated-electroencephalography-during-the-first-72-hours-after-birth-in-neonates-diagnosed-prenatally-with-congenital-heart-disease
#2
Mirthe J Mebius, Nathalie J E Oostdijk, Sara J Kuik, Arend F Bos, Rolf M F Berger, Caterina M Bilardo, Elisabeth M W Kooi, Hendrik J Ter Horst
BACKGROUND: Little is known on amplitude-integrated electroencephalography (aEEG) during the first days after birth in neonates with CHD. Our aim was, therefore, to assess electro-cortical activity using aEEG within the first 72 h after birth in neonates diagnosed prenatally with CHD, and to define independent prenatal and postnatal predictors for abnormal aEEG. METHODS: Neonates with CHD that were admitted to the neonatal intensive care unit between 2010 and 2017 were retrospectively included...
December 15, 2017: Pediatric Research
https://www.readbyqxmd.com/read/29243157/why-is-a-prone-sleeping-position-dangerous-for-certain-infants
#3
Roger W Byard, Fiona Bright, Robert Vink
The prone (face down) sleeping position is known to be associated with a significantly increased risk of sudden and unexpected death in infancy (sudden infant death syndrome or SIDS), however, the reasons for this are unclear. Suggested mechanisms have involved suffocation from occlusion of the external airways by soft bedding/pillows or from flattening of the nose with backward displacement of the tongue, rebreathing of carbon dioxide, blunting of arousal responses with decreased cardiac responses to auditory stimulation, diaphragmatic splinting or fatigue, lowering of vasomotor tone with tachycardia, nasopharyngeal bacterial overgrowth, overheating, alteration of sleep patterns, compromise of cerebral blood flow and upper airway obstruction from distortion of nasal cartilages...
December 14, 2017: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/29242137/sleep-deprivation-decreases-neuronal-excitability-and-responsiveness-in-rats-both-in-vivo-and-ex-vivo
#4
Sándor Borbély, Ildikó Világi, Zsófia Haraszti, Örs Szalontai, Tünde Hajnik, Attila Tóth, László Détári
Sleep deprivation has severe consequences for higher nervous functions. Its effects on neuronal excitability may be one of the most important factors underlying functional deterioration caused by sleep loss. In the present work, excitability changes were studied using two complementary in vivo and ex vivo models. Auditory evoked potentials were recorded from freely-moving animals in vivo. Amplitude of evoked responses showed a near-continuous decrease during deprivation. Prevention of sleep also reduced synaptic efficacy ex vivo, measured from brain slices derived from rats that underwent sleep deprivation...
December 11, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/29239984/profiling-inflammatory-markers-during-the-competitive-season-and-post-season-in-collegiate-wrestlers
#5
Joe Roth, Taylor Szczygiel, Mary Moore, Paul O'Connor, Jeffrey Edwards, Naveen Sharma, Ryan Pettit-Mee, Micah Zuhl
The purpose of this study was to determine if biological markers of muscle damage and inflammation coincide with subjective measures of muscle fatigue and sleep quality among Division I collegiate wrestlers. The goal was to provide practitioners with noninvasive techniques to evaluate a wrestlers inflammatory state. METHODS: Subjects from the Central Michigan University Division I collegiate wrestling team (n=6) were analyzed on six separate occasions throughout the course of the competitive season and post season...
December 11, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29234075/replay-of-large-scale-spatio-temporal-patterns-from-waking-during-subsequent-nrem-sleep-in-human-cortex
#6
Xi Jiang, Isaac Shamie, Werner K Doyle, Daniel Friedman, Patricia Dugan, Orrin Devinsky, Emad Eskandar, Sydney S Cash, Thomas Thesen, Eric Halgren
Animal studies support the hypothesis that in slow-wave sleep, replay of waking neocortical activity under hippocampal guidance leads to memory consolidation. However, no intracranial electrophysiological evidence for replay exists in humans. We identified consistent sequences of population firing peaks across widespread cortical regions during complete waking periods. The occurrence of these "Motifs" were compared between sleeps preceding the waking period ("Sleep-Pre") when the Motifs were identified, and those following ("Sleep-Post")...
December 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29231764/relevance-of-chronotype-for-eating-patterns-in-adolescents
#7
Sarah Roßbach, Tanja Diederichs, Ute Nöthlings, Anette E Buyken, Ute Alexy
During adolescence, a shift from morningness to eveningness occurs, yet school continues to start early in the morning. Hence, adolescents are at risk for social jetlag, i.e. a discrepancy between biological and social timing. It remains to be determined whether chronotype associates with daily and daytime-specific eating patterns during this potentially critical period. Therefore, the aim of the present study was to investigate whether chronotype is decisive for daily eating patterns [total energy intake (TEI, kcal), total macronutrient intake (% of TEI), eating occasion frequency (n/day), meal frequency (n/day), snack frequency (n/day), duration of nightly fasting], or daytime-specific eating patterns [morning (before 11 am) energy intake (% of TEI), morning macronutrient intake (% of morning energy intake), regular breakfast skipping (no morning energy intake at least on 2 of 3 days, yes/no), evening (after 6 pm) energy intake (% of TEI), evening macronutrient intake (% of evening energy intake), regular dinner skipping (no evening energy intake at least on 2 of 3 days, yes/no)] in German adolescents...
December 12, 2017: Chronobiology International
https://www.readbyqxmd.com/read/29231745/persistence-of-social-jetlag-and-sleep-disruption-in-healthy-young-adults
#8
Daria M McMahon, James B Burch, Michael D Wirth, Shawn D Youngstedt, James W Hardin, Thomas G Hurley, Steven N Blair, Gregory A Hand, Robin P Shook, Clemens Drenowatz, Stephanie Burgess, James R Hebert
Sleep disruption has been associated with increased risks for several major chronic diseases that develop over decades. Differences in sleep/wake timing between work and free days can result in the development of social jetlag (SJL), a chronic misalignment between a person's preferred sleep/wake schedule and sleep/wake timing imposed by his/her work schedule. Only a few studies have examined the persistence of SJL or sleep disruption over time. This prospective investigation examined SJL and sleep characteristics over a 2-year period to evaluate whether SJL or poor sleep were chronic conditions during the study period...
December 12, 2017: Chronobiology International
https://www.readbyqxmd.com/read/29230867/sleep-patterns-and-problems-in-infants-and-young-children-in-ireland
#9
S Hanafin
BACKGROUND: There is an increasing recognition that sleep is an important aspect of health and well-being, and this is particularly the case in infancy and early childhood where sleep behaviours and patterns can result in substantial problems. METHODS: This paper draws on Wave 1, 2, and 3 data from Growing Up in Ireland, the national longitudinal study of children in Ireland to provide an overview of sleep patterns in a population of children aged 9 months (n = 11,112), 3 years (n = 9,790), and 5 years (n = 8,996)...
December 12, 2017: Child: Care, Health and Development
https://www.readbyqxmd.com/read/29230431/initial-experience-and-usage-patterns-with-the-owlet-smart-sock-monitor-in-47-495-newborns
#10
Michelle I Dangerfield, Kenneth Ward, Luke Davidson, Milena Adamian
We report the largest experience, to our knowledge, of home cardiorespiratory monitoring in 47,495 newborns using the novel Owlet Smart Sock (OSS) technology (October 2015 to May 2017). On average, 47,495 newborns were monitored for 6 months, 4.5 d/wk, 9.9 h/d. Continuous readings of oxygen saturation and heart rate were obtained from 39,626 full-term newborns. OSS users were likely first-time parents in their 30s with at least a college degree; 37% had a healthcare professional in the family; and 28% were at or below median income level per the US Census Bureau...
2017: Global Pediatric Health
https://www.readbyqxmd.com/read/29229660/rationale-and-design-of-geneius-a-prospective-observational-study-on-the-genetic-and-environmental-determinants-of-body-mass-index-evolution-in-canadian-undergraduate-students
#11
Rita E Morassut, Christine Langlois, Akram Alyass, Adeola F Ishola, Fereshteh T Yazdi, Alexandra J Mayhew, Hudson Reddon, James MacKillop, Marie Pigeyre, David Meyre
INTRODUCTION: Obesity is a global epidemic and is a risk factor for developing other comorbidities. Young adulthood is a critical period for body weight change and establishing healthy lifestyle behaviours. The 'Freshman 15' suggests that undergraduate students gain 15 lbs (6.8 kg) during their first year of university, although evidence estimates a more modest weight gain of approximately 3-5 lbs (1.4-2.3 kg). Previous studies have only investigated weight change in the first year and do not study potential risk factors...
December 10, 2017: BMJ Open
https://www.readbyqxmd.com/read/29229413/constant-light-environment-suppresses-maturation-and-reduces-complexity-of-new-born-neuron-processes-in-the-hippocampus-and-caudal-nidopallium-of-a-diurnal-corvid-implication-for-impairment-of-the-learning-and-cognitive-performance
#12
S K Tahajjul Taufique, Abhilash Prabhat, Vinod Kumar
Periodic day-night environment shapes the temporal pattern in the behaviour and physiology (e.g. 24-h activity-rest and sleep-wake cycles) and the advanced brain function, such as learning, memory and decision making. In a previous study, we showed the abolition of 24-h rhythm in the activity-rest pattern, and an attenuated cognitive performance in diurnal Indian house crows (Corvus splendens) under constant light (no-night; LL) environment. Present study extended this, and investigated LL-induced effects on the neurogenesis (birth, maturation and neurite complexity of new born neurons) in the hippocampus and caudal nidopallium, the brain regions directly associated with learning and cognition in birds...
December 8, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/29228393/quantifying-the-arousal-threshold-using-polysomnography-in-obstructive-sleep-apnea
#13
Scott A Sands, Philip I Terrill, Bradley A Edwards, Luigi Taranto Montemurro, Ali Azarbarzin, Melania Marques, Camila M de Melo, Stephen H Loring, James P Butler, David White, Andrew Wellman
Objectives: Precision medicine for obstructive sleep apnea (OSA) requires non-invasive estimates of each patient's pathophysiological "traits". Here we provide the first, automated technique to quantify the respiratory arousal threshold-defined as the level of ventilatory drive triggering arousal from sleep-using diagnostic polysomnographic signals in patients with OSA. Methods: Ventilatory drive preceding clinically-scored arousals was estimated from polysomnographic studies by fitting a respiratory control model (Terrill P et al...
November 9, 2017: Sleep
https://www.readbyqxmd.com/read/29228366/genotype-influences-day-to-day-variability-in-sleep-in-drosophila-melanogaster
#14
Katherine J Wu, Shailesh Kumar, Yazmin L Serrano Negron, Susan T Harbison
Patterns of sleep often vary among individuals. But sleep and activity may also vary within an individual, fluctuating in pattern across time. One possibility is that these daily fluctuations in sleep are caused by the underlying genotype of the individual. However, differences attributable to genetic causes are difficult to distinguish from environmental factors in outbred populations such as humans. We therefore employed Drosophila as a model of intra-individual variability in sleep using previously collected sleep and activity data from the Drosophila Genetic Reference Panel, a collection of wild-derived inbred lines...
December 8, 2017: Sleep
https://www.readbyqxmd.com/read/29227268/characteristics-of-west-syndrome-in-georgia-preliminary-results-of-the-prospective-study
#15
A Kvernadze, N Tatishvili, T Kipiani, G Lomidze
West syndrome hasn't been thoroughly investigated in Georgia. The purposes of our study were a) to assess the clinical and etiological peculiarities of West syndrome, based on MRI data and its relation to the long-term outcome; b) to assess the evolution of West syndrome and its relation to patient characteristics; c) to compare the efficacies of treatments with ACTH and antiepileptic drugs (AEDs); d) to evaluate the neuropsychological outcome after 12 and 24 months and their early predictors. We evaluated 31 patients (17 male, 14 female) with infantile spasms...
November 2017: Georgian Medical News
https://www.readbyqxmd.com/read/29226507/age-is-the-only-predictor-of-small-decrease-in-lung-function-in-children-with-sickle-cell-anemia
#16
Shaina M Willen, Robyn Cohen, Mark Rodeghier, Fenella Kirkham, Susan S Redline, Carol Rosen, Jane Kirkby, Michael R DeBaun
The longitudinal pattern of lung function in children with sickle cell anemia (SCA) has shown a decrease in FEV1 % predicted, a risk factor for death in adults with SCA, but predictors for this decline are poorly characterized. In a prospective longitudinal multi-center cohort of children with SCA, we tested the hypotheses that: 1) FEV1 % predicted declines over time; and 2) SCA-specific characteristics and therapy predict this decline. At three clinical centers, children with SCA (HbSS or HbSβ0 thalassemia), unselected for respiratory disease, were enrolled in the Sleep and Asthma Cohort (SAC) study...
December 11, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/29225920/relationship-between-shift-work-and-the-onset-of-rheumatoid-arthritis
#17
Anna Karin Hedström, Torbjörn Åkerstedt, Lars Klareskog, Lars Alfredsson
Background: Environmental factors play a prominent role in rheumatoid arthritis (RA) aetiology. Shift work has previously been associated with increased RA risk in females. The aim of this study was to investigate the potential association, including a dose-response association, between permanent night shift work, rotating shift work and day-oriented shift work and risk of developing anticitrullinated peptide antibodies (ACPA)-positive and ACPA-negative RA. Methods: The present report is based on a population-based, case-control study with incident cases of RA (1951 cases and 2225 controls matched by age, gender and residential area)...
2017: RMD Open
https://www.readbyqxmd.com/read/29225066/perturbation-of-whole-brain-dynamics-in-silico-reveals-mechanistic-differences-between-brain-states
#18
Gustavo Deco, Joana Cabral, Victor M Saenger, Melanie Boly, Enzo Tagliazucchi, Helmut Laufs, Eus Van Someren, Beatrice Jobst, Angus Stevner, Morten L Kringelbach
Human neuroimaging research has revealed that wakefulness and sleep involve very different activity patterns. Yet, it is not clear why brain states differ in their dynamical complexity, e.g. in the level of integration and segregation across brain networks over time. Here, we investigate the mechanisms underlying the dynamical stability of brain states using a novel off-line in silico perturbation protocol. We first adjust a whole-brain computational model to the basal dynamics of wakefulness and deep sleep recorded with fMRI in two independent human fMRI datasets...
December 7, 2017: NeuroImage
https://www.readbyqxmd.com/read/29223363/comprehensive-determinants-of-growth-trajectories-and-body-composition-in-school-children-a-longitudinal-cohort-study
#19
Hsien-Yu Fan, Yungling Leo Lee, Shwu-Huey Yang, Yi-Wen Chien, Jane C-J Chao, Yang-Ching Chen
OBJECTIVE: To fully explain the dynamic and comprehensive etiology of the trajectory associated with adiposity indices. METHODS: This study involved data of 5572 children, aged 6-11 years, as part of the Taiwan Children Health Study (TCHS). The present study introduced four distinct BMI trajectories, identified previously among children: persistently healthy weight; late-onset overweight or obesity; persistent overweight or obesity; and declining BMI class. Logistic regression was used to examine the effect of non-modifiable factors on BMI trajectory classes...
December 6, 2017: Obesity Research & Clinical Practice
https://www.readbyqxmd.com/read/29223173/the-worried-well-characteristics-of-cognitively-normal-patients-presenting-to-a-rural-and-remote-memory-clinic
#20
Ryan Verity, Andrew Kirk, Megan E O'Connell, Chandima Karunanayake, Debra G Morgan
INTRODUCTION: In an effort to better understand why cognitively normal patients were referred to a memory clinic, we sought to identify features of "worried well" patients to better identify those more likely to be cognitively normal. METHODS: In total, 375 consecutive patients referred by primary care practitioners to a Rural and Remote Memory Clinic were categorized into two groups based on their neurologic diagnosis, "worried well" (cognitively normal, N=81) or "other" (patients with any neurologic diagnosis, N=294)...
December 10, 2017: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
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