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Journal of Sleep Research

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https://www.readbyqxmd.com/read/29105874/nocturnal-nasal-obstruction-is-frequent-and-reduces-sleep-quality-in-patients-with-obstructive-sleep-apnea
#1
Maria Värendh, Morgan Andersson, Erla Bjørnsdottir, Harald Hrubos-Strøm, Arne Johannisson, Erna S Arnardottir, Thorarinn Gislason, Sigurdur Juliusson
The prevalence and consequences of nasal obstruction in untreated obstructive sleep apnea patients are not known. The study objectives were to investigate the frequency of subjective and objective nasal obstruction in untreated sleep apnea patients and the associations with sleep and quality of life. Patients in the Icelandic Sleep Apnea Cohort were subjected to a type 3 sleep study, answered questionnaires and had their nasal dimensions measured by acoustic rhinometry. In total, 810 patients participated (including 153 females), aged 54...
November 6, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/29098744/work-stressors-depressive-symptoms-and-sleep-quality-among-us-navy-members-a-parallel-process-latent-growth-modelling-approach-across-deployment
#2
Adrian J Bravo, Michelle L Kelley, Cindy M Swinkels, Christi S Ulmer
The present study examined whether work stressors contribute to sleep problems and depressive symptoms over the course of deployment (i.e. pre-deployment, post-deployment and 6-month reintegration) among US Navy members. Specifically, we examined whether depressive symptoms or sleep quality mediate the relationships between work stressors and these outcomes. Participants were 101 US Navy members who experienced an 8-month deployment after Operational Enduring Freedom/Operation Iraqi Freedom. Using piecewise latent growth models, we found that increased work stressors were linked to increased depressive symptoms and decreased sleep quality across all three deployment stages...
November 3, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/29094414/chronic-sleep-restriction-differentially-affects-implicit-biases-toward-food-among-men-and-women-preliminary-evidence
#3
Anna Alkozei, William D S Killgore, Ryan Smith, Natalie S Dailey, Sahil Bajaj, Adam C Raikes, Monika Haack
Chronic sleep restriction and obesity are two major public health concerns. This study investigated how chronic sleep restriction changes implicit attitudes towards low- and high-calorie foods. In a randomized, counterbalanced cross-over design, 17 participants (eight females, nine males) underwent two laboratory testing sessions where they were either sleep-restricted for 3 weeks (i.e. underwent three weekly cycles of 5 nights of 4 h of sleep followed by 2 nights of 8 h of sleep opportunity) or received 3 weeks of control sleep (i...
November 2, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/29082633/effects-of-late-night-short-sleep-on-in-home-polysomnography-relation-to-adult-age-and-sex
#4
Torbjörn Åkerstedt, Mats Lekander, Gustav Nilsonne, Sandra Tamm, Paolo D'onofrio, Göran Kecklund, Håkan Fischer, Johanna Schwarz
Bedtime is frequently delayed by many factors in life, and a homeostatic response to the delay may compensate partly for increased time awake and shortened sleep. Because sleep becomes shorter with age and women complain of disturbed sleep more often than men, age and sex differences in the homeostatic response to a delayed bedtime may modify the homeostatic response. The purpose of the present study was to investigate the effect of late-night short-sleep (3 h with awakening at about 07:00 hours) on in-home recorded sleep in men and women in two age groups (20-30 and 65-75 years)...
October 30, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/29082563/magnetic-resonance-imaging-of-the-upper-airway-in-patients-with-quadriplegia-and-obstructive-sleep-apnea
#5
Fergal J O'donoghue, Hailey Meaklim, Lynne Bilston, Alice Hatt, Alan Connelly, Graeme Jackson, Shawna Farquharson, Kate Sutherland, Peter A Cistulli, Douglas J Brown, David J Berlowitz
The aim of this study was to investigate upper airway anatomy in quadriplegics with obstructive sleep apnea. Fifty subjects were recruited from three hospitals in Australia: people with quadriplegia due to spinal cord injury and obstructive sleep apnea (n = 11), able-bodied people with obstructive sleep apnea (n = 18), and healthy, able-bodied controls (n = 19). All underwent 3-Tesla magnetic resonance imaging of their upper airway. A subgroup (n = 34) received a topical vasoconstrictor, phenylephrine and post-phenylephrine magnetic resonance imaging...
October 30, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/29063639/calibrating-actigraphy-to-improve-sleep-efficiency-estimates
#6
Christina T Khan, Steven H Woodward
Actigraphy (ACT) can enhance treatment for insomnia by providing objective estimates of sleep efficiency; however, only two studies have assessed the accuracy of actigraphy-based estimates of sleep efficiency (ACT-SE) in sleep-disordered samples studied at home. Both found poor correspondence with polysomnography-based estimates (PSG-SE). The current study tested that concordance in a third sample and piloted a method for improving ACT-SE. Participants in one of four diagnostic categories (panic disorder, post-traumatic stress disorder, comorbid post-traumatic stress and panic disorder and controls without sleep complaints) underwent in-home recording of sleep using concurrent ambulatory PSG and actigraphy...
October 24, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/29063632/highway-driving-safety-the-day-after-using-sleep-medication-the-direction-of-lapses-and-excursions-out-of-lane-in-drowsy-drivers
#7
Joris C Verster, Loes Mooren, Adriana C Bervoets, Thomas Roth
The primary outcome measure of the on-road driving test is the Standard Deviation of Lateral Position. However, other outcome measures, such as lapses and excursions out-of-lane, also need to be considered as they may be related to crash risk. The aim of this study was to determine the direction of lapses and excursions out-of-lane (i.e. towards/into the adjacent traffic lane or towards/into the road shoulder). In total, data from 240 driving tests were re-analysed, and 628 lapses and 401 excursions out-of-lane were identified...
October 24, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/29047222/validation-of-the-german-version-of-the-ford-insomnia-response-to-stress-test
#8
Arne Dieck, Susanne Helbig, Christopher L Drake, Jutta Backhaus
The purpose of this study was to assess the psychometric properties of a German version of the Ford Insomnia Response to Stress Test with groups with and without sleep problems. Three studies were analysed. Data set 1 was based on an initial screening for a sleep training program (n = 393), data set 2 was based on a study to test the test-retest reliability of the Ford Insomnia Response to Stress Test (n = 284) and data set 3 was based on a study to examine the influence of competitive sport on sleep (n = 37)...
October 19, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/29047179/what-about-sleep-homeostasis-in-insomnia-comment-on-the-european-guideline-for-the-diagnosis-and-treatment-of-insomnia
#9
LETTER
Daniel Neu, Olivier Mairesse, Olivier Le Bon
No abstract text is available yet for this article.
October 19, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/29047171/effectiveness-and-side-effect-profile-of-stimulant-therapy-as-monotherapy-and-in-combination-in-the-central-hypersomnias-in-clinical-practice
#10
Chiraag Thakrar, Kishankumar Patel, Grainne D'ancona, Brian D Kent, Alexander Nesbitt, Hugh Selsick, Joerg Steier, Ivana Rosenzweig, Adrian J Williams, Guy D Leschziner, Panagis Drakatos
Effectiveness and side-effect profile data on pharmacotherapy for daytime sleepiness in central hypersomnias are based largely upon randomized controlled trials. Evidence regarding the use of combination therapy is scant. The aim of this study was to examine the effectiveness and occurrence of drug-related side effects of these drugs in routine clinical practice. Adult patients diagnosed with a central hypersomnia during a 54-month period at a tertiary sleep disorders centre were identified retrospectively...
October 19, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/29047168/changes-in-sleep-quality-with-age-a-36-year-follow-up-study-of-finnish-working-aged-adults
#11
Christer Hublin, Mikko Lehtovirta, Markku Partinen, Markku Koskenvuo, Jaakko Kaprio
Long-term follow-up data on changes in sleep quality among middle-aged adults is scarce. We assessed sleep quality in a population-based cohort (n = 4847) of twins born between 1945 and 1957 during a follow-up of 36 years, with four measurement points in 1975, 1981, 1990 and 2011. Sleep quality was categorized as sleeping well, fairly well, fairly poorly or poorly. The mean age at the beginning of follow-up was 24.0, and at the end was 60.3 years. Of all the adults, 71.1% slept well or fairly well at each time-point throughout the follow-up and 0...
October 19, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/29034521/sleep-spindle-detection-using-multivariate-gaussian-mixture-models
#12
Chanakya Reddy Patti, Thomas Penzel, Dean Cvetkovic
In this research study we have developed a clustering-based automatic sleep spindle detection method that was evaluated on two different databases. The databases consisted of 20 all-night polysomnograph recordings. Past detection methods have been based on subject-independent and some subject-dependent parameters, such as fixed or variable thresholds to identify spindles. Using a multivariate Gaussian mixture model clustering technique, our algorithm was developed to use only subject-specific parameters to detect spindles...
October 16, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/29024363/prevalence-predictors-and-correlates-of-insomnia-in-us-army-soldiers
#13
Elizabeth A Klingaman, Janeese A Brownlow, Elaine M Boland, Caterina Mosti, Philip R Gehrman
The objective of this study was to investigate the rates, predictors and correlates of insomnia in a national sample of US Army soldiers. Data were gathered from the cross-sectional survey responses of the All-Army Study, of the Army Study to Assess Risk and Resilience in Service members. Participants were a representative sample of 21 499 US Army soldiers who responded to the All-Army Study self-administered questionnaire between 2011 and 2013. Insomnia was defined by selected DSM-5 criteria using the Brief Insomnia Questionnaire...
October 11, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/29024188/the-impact-of-sleep-deprivation-on-visual-perspective-taking
#14
Gaétane Deliens, Henryk Bukowski, Hichem Slama, Andrew Surtees, Axel Cleeremans, Dana Samson, Philippe Peigneux
Total sleep deprivation (TSD) is known to alter cognitive processes. Surprisingly little attention has been paid to its impact on social cognition. Here, we investigated whether TSD alters levels-1 and -2 visual perspective-taking abilities, i.e. the capacity to infer (a) what can be seen and (b) how it is seen from another person's visual perspective, respectively. Participants completed levels-1 and -2 visual perspective-taking tasks after a night of sleep and after a night of TSD. In these tasks, participants had to take their own (self trials) or someone else's (other trials) visual perspective in trials where both perspectives were either the same (consistent trials) or different (inconsistent trials)...
October 11, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28994211/sleep-duration-is-associated-with-sperm-chromatin-integrity-among-young-men-in-chongqing-china
#15
Xiaogang Wang, Qing Chen, Peng Zou, Taixiu Liu, Min Mo, Huan Yang, Niya Zhou, Lei Sun, Hongqiang Chen, Xi Ling, Kaige Peng, Lin Ao, Huifang Yang, Jia Cao, Zhihong Cui
This study explores whether sleep duration is associated with sperm chromatin integrity. To do so, we conducted a three-phase panel study of 796 male volunteers from colleges in Chongqing (China) from 2013 to 2015. Sleep duration was measured using a modified Munich Chronotype Questionnaire. Sperm DNA integrity was examined via Sperm Chromatin Structure Assay and Comet assay. Setting 7-7.5 h day(-1) of sleep duration as a reference, either longer or shorter sleep duration was associated negatively with high DNA stainability (HDS) (P = 0...
October 9, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28960626/comparison-of-rhythmic-masticatory-muscle-activity-during-non-rapid-eye-movement-sleep-in-guinea-pigs-and-humans
#16
Takafumi Kato, Risa Toyota, Shingo Haraki, Hiroyuki Yano, Makoto Higashiyama, Yoshio Ueno, Hiroshi Yano, Fumihiko Sato, Hirofumi Yatani, Atsushi Yoshida
Rhythmic masticatory muscle activity can be a normal variant of oromotor activity, which can be exaggerated in patients with sleep bruxism. However, few studies have tested the possibility in naturally sleeping animals to study the neurophysiological mechanisms of rhythmic masticatory muscle activity. This study aimed to investigate the similarity of cortical, cardiac and electromyographic manifestations of rhythmic masticatory muscle activity occurring during non-rapid eye movement sleep between guinea pigs and human subjects...
September 27, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28944605/a-comparison-of-two-screening-tools-for-paediatric-obstructive-sleep-apnea
#17
Asmaa M Abumuamar, Sharon A Chung, Gili Kadmon, Colin M Shapiro
Untreated obstructive sleep apnea in children is associated with significant medical and psychological morbidities. Polysomnographic testing is the gold-standard method for diagnosis of obstructive sleep apnea. However, laboratory-based polysomnography is expensive and associated with a substantial healthcare burden. Thus, a simple valid tool to accurately identify those at high risk of obstructive sleep apnea is essential. We performed a retrospective cross-sectional study of children referred to the Youthdale Child and Adolescent Sleep Clinic...
September 25, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28944590/effect-of-the-use-of-earplugs-and-eye-mask-on-the-quality-of-sleep-in-intensive-care-patients-a-systematic-review
#18
Hana Locihová, Karel Axmann, Hana Padyšáková, Jakub Fejfar
Intensive care unit (ICU) environment has a very strong and unavoidable negative impact on patients' sleep. Sleep deprivation in ICU patients has been already studied and negative effects on their outcome (prolonged ICU stay, decreased recovery) and complication rates (incidence of delirium, neuropsychological sequels of critical illness) discussed. Several interventions potentially improving the sleep disturbance in ICU (sleep-promotion strategies) have been assumed and tested for clinical practice. We present a review of recent literature focused on chosen types of non-pharmacological interventions (earplugs and eye mask) analysing their effect on sleep quality/quantity...
September 25, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28944524/changes-of-vitamin-d-levels-and-bone-turnover-markers-after-cpap-therapy-a-randomized-sham-controlled-trial
#19
Jenny Theorell-Haglöw, Camilla M Hoyos, Craig L Phillips, Brendon J Yee, Markus Herrmann, Tara C Brennan-Speranza, Ronald R Grunstein, Peter Y Liu
The aim was to investigate whether continuous positive airway pressure treatment could modulate serum vitamin D (25-hydroxyvitamin D) and bone turnover markers (collagen-type 1 cross-linked C-telopeptide, osteocalcin and N-terminal propeptide of type 1 collagen) in secondary analysis from a randomized controlled trial. Sixty-five continuous positive airway pressure-naïve male patients with obstructive sleep apnea (age = 49 ± 12 years, apnea-hypopnea index = 39.9 ± 17.7 events h(-1) , body mass index = 31...
September 25, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28940629/dynamic-daily-associations-between-insomnia-symptoms-and-alcohol-use-in-adults-with-chronic-pain
#20
Mary Beth Miller, Wai Sze Chan, Jeff Boissoneault, Michael Robinson, Roland Staud, Richard B Berry, Christina S McCrae
Individuals with chronic pain are at risk for sleep disruption and heavy alcohol use, yet the daily associations between these behaviours are not well characterized. This study aimed to determine the extent to which alcohol use affects insomnia symptoms and vice versa in adults reporting symptoms of chronic pain. Participants were 73 individuals (93% women) reporting alcohol use in addition to symptoms of insomnia and chronic pain. They completed daily diaries assessing insomnia symptoms and alcohol use for 14 days...
September 22, 2017: Journal of Sleep Research
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