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Journal of Sleep Research

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https://www.readbyqxmd.com/read/28643476/low-leptin-concentration-may-identify-heart-failure-patients-with-central-sleep-apnea
#1
Ivan Cundrle, Virend K Somers, Prachi Singh, Bruce D Johnson, Christopher G Scott, Lyle J Olson
Low leptin concentration has been shown to be associated with central sleep apnea in heart failure patients. We hypothesized that low leptin concentration predicts central sleep apnea. Consecutive ambulatory New York Heart Association (NYHA) classes I-IV heart failure patients were studied prospectively, including measurement of serum leptin, echocardiography and polysomnography. Sleep apnea was defined by type (central/mixed/obstructive) and by apnea-hypopnea index ≥5 by polysomnography. Subjects were divided into four groups by polysomnography: (1) central sleep apnea, (2) mixed apnea, (3) no apnea and (4) obstructive sleep apnea...
June 23, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28643350/habitual-sleep-and-kidney-function-in-chronic-kidney-disease-the-chronic-renal-insufficiency-cohort-study
#2
Kristen L Knutson, James Lash, Ana C Ricardo, James Herdegen, J D Thornton, Mahboob Rahman, Nicolas Turek, Janet Cohan, Lawrence J Appel, Lydia A Bazzano, Manjula K Tamura, Susan P Steigerwalt, Matthew R Weir, Eve Van Cauter
Physiological evidence suggests that sleep modulates kidney function. Our objective was to examine the cross-sectional association between kidney function and objectively-estimated habitual sleep duration, quality and timing in a cohort of patients with mild to moderate chronic kidney disease. This study involved two US clinical centers of the Chronic Renal Insufficiency Cohort (CRIC) study, including 432 participants in a CRIC ancillary sleep study. Habitual sleep duration, quality and timing were measured using wrist actigraphy for 5-7 days...
June 23, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28631309/obstructive-sleep-apnea-and-silent-cerebral-infarction-in-hypertensive-individuals
#3
José Alvarez-Sabín, Odile Romero, Pilar Delgado, Manuel Quintana, Estevo Santamarina, Alex Ferré, Olga Maisterra, Iolanda Riba-Llena, Joan Montaner, Gabriel Sampol
Obstructive sleep apnea syndrome is very prevalent in hypertensive subjects. Moreover, obstructive sleep apnea syndrome activates multiple processes that might be associated with silent cerebral infarct independently of established risk factors. Our aim is to estimate the frequency of obstructive sleep apnea syndrome in hypertensive patients with and without silent cerebral infarct, and to determine whether obstructive sleep apnea syndrome is an independent risk factor of silent cerebral infarct and/or lacunar silent cerebral infarct in patients with hypertension...
June 20, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28621018/sleep-structure-in-blindness-is-influenced-by-circadian-desynchrony
#4
Sébrina Aubin, Poul Jennum, Tore Nielsen, Ron Kupers, Maurice Ptito
We examined the structure, duration and quality of sleep, including non-rapid eye movement sleep and rapid eye movement sleep, in 11 blind individuals without conscious light perception and 11 age- and sex-matched sighted controls. Because blindness is associated with a greater incidence of free-running circadian rhythms, we controlled for circadian phase by a measure of melatonin onset timing. When circadian rhythm was entrained and melatonin onset occurred at normal times, sleep structure did not differ between blind and sighted individuals...
June 16, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28618185/let-s-talk-about-sleep-a-systematic-review-of-psychological-interventions-to-improve-sleep-in-college-students
#5
REVIEW
Anja Friedrich, Angelika A Schlarb
Sleep problems are a common occurrence in college students. Insomnia, nightmares and impaired sleep quality lead to several mental health issues, as well as impaired academic performance. Although different sleep programmes exist, a systematic overview comparing their effectiveness is still missing. This systematic review aims to provide an overview of psychological interventions to improve sleep in college students. Seven databases were searched from November to December 2016 (MEDLINE, EMBASE, PsycINFO, Cinahl, Cochrane Library, PubMed, OpenSigle)...
June 15, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28618114/subjective-insomnia-symptoms-and-sleep-duration-are-not-related-to-hypothalamic-pituitary-adrenal-axis-activity-in-older-adults
#6
Rian J G Peters van Neijenhof, Erik van Duijn, Julia F Van Den Berg, Margot W M de Waal, Roos C van der Mast, Hannie C Comijs
Insomnia symptoms are highly prevalent in depressed older adults. This study investigates the association between hypothalamic-pituitary-adrenal (HPA) axis activity and symptoms of insomnia, respectively, sleep duration among 294 depressed and 123 non-depressed older adults of the Netherlands Study of Depression in Older people (NESDO) study. Insomnia symptoms were defined as clinically relevant when having a score ≥ 10 points on the Women's Health Initiative Insomnia Rating Scale (WHIIRS). Sleep duration was categorized in short (≤ 6 h per night), normal (7-8 h per night) and long (≥ 9 h per night) duration...
June 15, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28593637/sleep-hygiene-behaviours-in-iranian-adolescents-an-application-of-the-theory-of-planned-behavior
#7
Carol Strong, Chung-Ying Lin, Shabnam Jalilolghadr, John A Updegraff, Anders Broström, Amir H Pakpour
Poor sleep quality and inadequate sleep in adolescents are a rising trend globally. The Theory of Planned Behaviour (TPB)-which centres on an individual's attitude toward performing the behaviour, subjective norms and perceived behavioural control-has been applied to examine sleep hygiene behaviours in young adults. We expanded on prior works by using a longitudinal design to examine the effects of TPB factors, together with sleep hygiene knowledge and planning constructs, on sleep hygiene behaviours and on sleep quality and health in a group of Iranian adolescents...
June 8, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28573658/an-approach-to-understanding-sleep-and-depressed-mood-in-adolescents-person-centred-sleep-classification
#8
Tamar Shochat, David H Barker, Katherine M Sharkey, Eliza Van Reen, Brandy M Roane, Mary A Carskadon
Depressive mood in youth has been associated with distinct sleep dimensions, such as timing, duration and quality. To identify discrete sleep phenotypes, we applied person-centred analysis (latent class mixture models) based on self-reported sleep patterns and quality, and examined associations between phenotypes and mood in high-school seniors. Students (n = 1451; mean age = 18.4 ± 0.3 years; 648 M) completed a survey near the end of high-school. Indicators used for classification included school night bed- and rise-times, differences between non-school night and school night bed- and rise-times, sleep-onset latency, number of awakenings, naps, and sleep quality and disturbance...
June 2, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28568911/dream-emotions-a-comparison-of-home-dream-reports-with-laboratory-early-and-late-rem-dream-reports
#9
Pilleriin Sikka, Antti Revonsuo, Nils Sandman, Jarno Tuominen, Katja Valli
The aim of this study was to compare the emotional content of dream reports collected at home upon morning awakenings with those collected in the laboratory upon early and late rapid eye movement (REM) sleep awakenings. Eighteen adults (11 women, seven men; mean age = 25.89 ± 4.85) wrote down their home dreams every morning immediately upon awakening during a 7-day period. Participants also spent two non-consecutive nights in the sleep laboratory where they were awoken 5 min into each continuous REM sleep stage, upon which they gave a verbal dream report...
June 1, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28568907/anticipated-next-day-demand-affects-the-magnitude-of-the-cortisol-awakening-response-but-not-subjective-or-objective-sleep
#10
Greg J Elder, Nicola L Barclay, Mark A Wetherell, Jason G Ellis
Whilst the association between sleep and stress is well established, few studies have examined the effects of an anticipated stressor upon sleep and relevant physiological markers. The aim of the present study was to examine whether an anticipated stressor in the form of next-day demand affects subjective and objective sleep, and multiple indices of the cortisol awakening response. Subjective and objective sleep and the cortisol awakening response were measured over three consecutive nights in 40 healthy adults in a sleep laboratory...
June 1, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28568319/narcolepsy-with-cataplexy-and-pregnancy-a-case-control-study
#11
Elena Calvo-Ferrandiz, Rosa Peraita-Adrados
This was a retrospective case-control study in 25 patients with narcolepsy with cataplexy and 75 women in the control group. Patients completed the questionnaire by Maurovich-Horvat et al. (J. Sleep Res., 2013, 22: 496-512). We personally interviewed 25 patients with narcolepsy with cataplexy using the administered questionnaire regarding conception, pregnancy, delivery, perinatal and breastfeeding periods. Patients with narcolepsy with cataplexy reported 59 pregnancies versus 164 in the control group. In 16 cases (27...
June 1, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28568314/greater-circadian-disadvantage-during-evening-games-for-the-national-basketball-association-nba-national-hockey-league-nhl-and-national-football-league-nfl-teams-travelling-westward
#12
Jonathan Roy, Geneviève Forest
We investigated the effects of a circadian disadvantage (i.e. playing in a different time zone) on the winning percentages in three major sport leagues in North America: the National Basketball Association, the National Hockey League and the National Football League. We reviewed 5 years of regular season games in the National Basketball Association, National Hockey League and National Football League, and noted the winning percentage of the visiting team depending on the direction of travel (west, east, and same time zone) and game time (day and evening games)...
June 1, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28568246/total-sleep-time-as-a-predictor-of-suicidal-behaviour
#13
Matthew S Michaels, Tia Balthrop, Michael R Nadorff, Thomas E Joiner
Insomnia symptoms are a known predictor of suicide; however, less is known about the relationship between hypersomnia and suicide, and how total sleep time may better account for suicidal ideation compared with subjective reports of insomnia symptoms. In the present secondary data analysis, a squared term confirmed the importance of both short and long total sleep time on suicidal behaviour. Total sleep time had a significant positive direct effect on suicidal behaviour (b = 0.20, SE = 0.08, P < 0...
June 1, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28560837/the-relationship-between-sleep-and-glucagon-like-peptide-1-in-patients-with-abnormal-glucose-tolerance
#14
Sirimon Reutrakul, Rungtip Sumritsopak, Sunee Saetung, Suwannee Chanprasertyothin, Thunyarat Anothaisintawee
Glucagon-like peptide 1 plays a role in glucose regulation. Sleep disturbances (obstructive sleep apnea, insufficient or poor sleep quality) have been shown to adversely affect glucose metabolism. This study aimed to explore the relationship between sleep and glucagon-like peptide 1 regulation in patients with abnormal glucose tolerance. Seventy-one adults with haemoglobin A1c levels between 5.7% and < 6.5% and no history of diabetes participated. Habitual sleep duration and efficiency were obtained from 7-day actigraphy recordings...
May 31, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28560835/a-comparison-of-pulse-oximetry-and-cerebral-oxygenation-in-children-with-severe-sleep-apnea-hypopnea-syndrome-a-pilot-study
#15
Jorge Olmo Arroyo, Sonia Khirani, Alessandro Amaddeo, Lucie Griffon, Livio De Sanctis, Philippe Pouard, Brigitte Fauroux
Near infrared spectroscopy (NIRS) has been used to assess the impact of obstructive sleep apnea-hypopnea syndrome (OSAHS) on cerebral oxygenation. However, the relationship between the variations in the cerebral tissue oxygen saturation (ΔTOI) and pulse oximetry (ΔSpO2 ) has not been assessed in children with OSAHS. Consecutive clinically stable children with severe OSAHS [apnea-hypopnea index (AHI) >15 events h(-1) ] diagnosed during a night-time polygraphy with simultaneous recording of cerebral oxygenation with NIRS (NIRO-200NX, Hamamatsu Photonics KK) were included between September 2015 and June 2016...
May 31, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28560832/effects-of-a-lifestyle-intervention-on-rem-sleep-related-osa-severity-in-obese-individuals-with-type-2-diabetes
#16
Ari Shechter, Gary D Foster, Wei Lang, David M Reboussin, Marie-Pierre St-Onge, Gary Zammit, Anne B Newman, Richard P Millman, Thomas A Wadden, John M Jakicic, Elsa S Strotmeyer, Rena R Wing, F Xavier Pi-Sunyer, Samuel T Kuna
The aim of this study was to determine if an intensive lifestyle intervention (ILI) reduces the severity of obstructive sleep apnea (OSA) in rapid-eye movement (REM) sleep, and to determine if longitudinal changes in glycaemic control are related to changes in OSA severity during REM sleep over a 4-year follow-up. This was a randomized controlled trial including 264 overweight/obese adults with type 2 diabetes (T2D) and OSA. Participants were randomized to an ILI targeted to weight loss or a diabetes support and education (DSE) control group...
May 31, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28560797/the-effects-of-rapid-eye-movement-sleep-deprivation-during-late-pregnancy-on-newborns-sleep
#17
B S Aswathy, Velayudhan M Kumar, Kamalesh K Gulia
Sleep deprivation during pregnancy is an emerging concern, as it can adversely affect the development of the offspring brain. This study was conducted to evaluate the effects of deprivation of rapid eye movement (REM) sleep during the third term of pregnancy on the sleep-wake profiles of neonates in the Wistar rat model. Sleep-wake patterns were assessed through electrophysiological measures and behavioural observations during postnatal days 1-21 on pups born to REM sleep-deprived dams and control rats. Pups of REM sleep-deprived dams had active sleep that was not only markedly higher in percentage during all the days studied, but also had reduced latency during later postnatal days 15-21...
May 31, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28548389/night-shift-work-is-associated-with-poorer-glycaemic-control-in-patients-with-type-2-diabetes
#18
Areesa Manodpitipong, Sunee Saetung, Hataikarn Nimitphong, Nantaporn Siwasaranond, Thanawat Wongphan, Chotima Sornsiriwong, Pranee Luckanajantachote, Prasitchai Mangjit, Prasit Keesukphan, Stephanie J Crowley, Megan M Hood, Sirimon Reutrakul
The circadian system plays a role in regulating metabolism. Night-shift work, a form of circadian misalignment, is associated with increased type 2 diabetes risk. This study aimed to determine if night-shift workers with type 2 diabetes experience poorer glycaemic control than non-shift workers. Patients with type 2 diabetes (104 unemployed, 85 day workers and 60 night-shift workers) participated. Sleep duration, sleep quality, morningness-eveningness preference, depressive symptoms and dietary intake were assessed using standardized questionnaires...
May 26, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28548308/validation-of-a-french-version-of-the-sleep-condition-indicator-a-clinical-screening-tool-for-insomnia-disorder-according-to-dsm-5-criteria
#19
Sophie Bayard, Cindy Lebrun, Khaalid Hassan Maudarbocus, Vanessa Schellaert, Alicia Joffre, Esther Ferrante, Marie Le Louedec, Alice Cournoulat, Marie-Christine Gely-Nargeot, Annemarie I Luik
Insomnia disorder is frequent in the population, yet there is no French screening instrument available that is based on the updated DSM-5 criteria. We evaluated the validity and reliability of the French version of an insomnia screening instrument based on DSM-5 criteria, the Sleep Condition Indicator, in a population-based sample of adults. A total of 366 community-dwelling participants completed a face-to-face clinical interview to determine insomnia disorder against DSM-5 criteria and several questionnaires including the French Sleep Condition Indicator version...
May 26, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28548301/night-to-night-variability-of-obstructive-sleep-apnea
#20
Anna S Stöberl, Esther I Schwarz, Sarah R Haile, Christopher D Turnbull, Valentina A Rossi, John R Stradling, Malcolm Kohler
One night of a sleep study is the standard for diagnosis and exclusion of obstructive sleep apnea. Single testing requires high sensitivity of the test method and a stable disease of interest to warrant a low rate of false-negative tests. Obstructive sleep apnea is diagnosed and graded by conventional thresholds of apneas and hypopneas per hour of sleep, and treatment is usually initiated in the presence of symptoms. The aim of this study was to assess night-to-night variability of obstructive sleep apnea to reassess the current practice...
May 26, 2017: Journal of Sleep Research
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