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https://www.readbyqxmd.com/read/27912863/circadian-rhythm-and-sleep-during-prolonged-antarctic-residence-at-chinese-zhongshan-station
#1
Nan Chen, Quan Wu, Yanlei Xiong, Guang Chen, Dandan Song, Chengli Xu
OBJECTIVE: Residence at Zhongshan Station (69°22'24″S, 76°22'40″E) for over 1 year exposes winter-over members to marked changes of light-dark cycle, ranging from the constant daylight of polar days to the constant darkness of polar nights, in addition to geographic and social isolation. This extreme photoperiodic environment may increase the risk of sleep disturbances and circadian desynchrony. The aim of this study was to investigate the circadian rhythm and sleep phase of Chinese winter-over expeditioners at Zhongshan Station...
December 2016: Wilderness & Environmental Medicine
https://www.readbyqxmd.com/read/27895102/delaying-and-seeking-care-for-obstructive-sleep-apnea-the-role-of-gender-family-and-morality
#2
Dana Zarhin
Social scientists have proposed various theories as to when, why, and how people come to seek medical care for multiple conditions. Yet, there is still little empirical research to illustrate the pathways into and out of care, especially for chronic illness. This article contributes to this body of work by exploring individuals' reasons for delaying and seeking care for obstructive sleep apnea, which despite being the most diagnosed sleep disorder, has been largely neglected by social scientists. Drawing upon in-depth interviews with 65 Jewish-Israeli obstructive sleep apnea patients, this study shows how intersections of gender, family, and morality shape and are shaped by care-seeking behavior...
November 28, 2016: Health (London)
https://www.readbyqxmd.com/read/27887821/-sleep-disorders-in-internet-addiction
#3
Aymeric Petit, Laurent Karila, Candice Estellat, Delphine Moisan, Michel Reynaud, Marie-Pia D'Ortho, Michel Lejoyeux, Fanny Levy
BACKGROUND: The relationship between sleep disorders and Internet addiction has been little work. Given the importance of these disorders, we felt it appropriate to make a synthesis of available data and to establish causality or accountability between Internet addiction and the onset of sleep disorders. METHODS: A literature review was then performed. We selected scientific articles in English and French, published between 1987 and 2016 by consulting the databases Medline, Embase, PsycINFO and Google Scholar...
November 22, 2016: La Presse Médicale
https://www.readbyqxmd.com/read/27866988/the-effects-of-partial-sleep-restriction-and-altered-sleep-timing-on-appetite-and-food-reward
#4
Jessica McNeil, Geneviève Forest, Luzia Jaeger Hintze, Jean-François Brunet, Graham Finlayson, John E Blundell, Éric Doucet
: We examined the effects of partial sleep restriction (PSR) with an advanced wake-time or delayed bedtime on measures of appetite, food reward and subsequent energy intake (EI). Twelve men and 6 women (age: 23 ± 4 years, body fat: 18.8 ± 10.1%) participated in 3 randomized crossover sessions: control (habitual bed- and wake-time), 50% PSR with an advanced wake-time and 50% PSR with a delayed bedtime. Outcome variables included sleep architecture (polysomnography), ad libitum EI (validated food menu), appetite sensations (visual analogue scales), satiety quotient (SQ; mm/100 kcal) and food reward (Leeds Food Preference Questionnaire and the relative-reinforcing value (RRV) of preferred food task)...
November 17, 2016: Appetite
https://www.readbyqxmd.com/read/27857964/women-with-postpartum-weight-retention-have-delayed-wake-times-and-decreased-sleep-efficiency-during-the-perinatal-period-a-brief-report
#5
K M Sharkey, G M Boni, J A Quattrucci, S Blatch, S N Carr
OBJECTIVE: This study assessed sleep and circadian rhythms across the perinatal period in new mothers with and without postpartum weight retention (PPWR). METHODS: Weight was measured at 2 and 16 weeks postpartum in 21 women with previous major depression or bipolar disorder (mean age 29.5±4.7 years) who self-reported pre-pregnancy weight during third trimester. Wrist actigraphy was acquired at 33 weeks gestation and postpartum weeks 2, 6, and 16. Circadian phase was measured at 33 weeks gestation and 6 weeks postpartum...
September 2016: Sleep Health
https://www.readbyqxmd.com/read/27823719/individual-and-socio-demographic-factors-related-to-presenting-problem-and-diagnostic-impressions-at-a-pediatric-sleep-clinic
#6
Sonia L Rubens, Kristina E Patrick, Ariel A Williamson, Melisa Moore, Jodi A Mindell
OBJECTIVE: Individual and socio-demographic factors have been found to be associated with sleep disturbances in children. Few studies have examined these factors among children presenting for care at pediatric sleep clinics. This study examined individual and socio-demographic factors in association with presenting problems and diagnostic impressions for new patients at an interdisciplinary pediatric sleep clinic. METHODS: Data were collected from electronic medical records of 207 consecutive patients (54% male, 59% White, Meanage = 7...
September 2016: Sleep Medicine
https://www.readbyqxmd.com/read/27771371/rem-sleep-disorder-following-general-anesthesia-in-rats
#7
Katarina Lazic, Jelena Petrovic, Jelena Ciric, Aleksandar Kalauzi, Jasna Saponjic
Postoperative sleep disorders, particularly the REM sleep disorder, may have a significant deleterious impact on postoperative outcomes and may contribute to the genesis of certain delayed postoperative complications. We have followed the effect of distinct anesthesia regimens (ketamine/diazepam vs. pentobarbital) over 6days following the induction of a stable anesthetized state in adult male Wistar rats, chronically instrumented for sleep recording. In order to compare the effect of both anesthetics in the physiological controls vs...
January 1, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/27754700/effect-of-aptensio-xr-methylphenidate-hcl-extended-release-capsules-on-sleep-in-children-with-attention-deficit-hyperactivity-disorder
#8
Judith Owens, Margaret Weiss, Earl Nordbrock, Greg Mattingly, Sharon Wigal, Laurence L Greenhill, Wei-Wei Chang, Ann Childress, Robert J Kupper, Akwete Adjei
OBJECTIVE: To evaluate measures of sleep (exploratory endpoints) in two pivotal studies of a multilayer bead extended-release methylphenidate (MPH-MLR) treatment of attention-deficit/hyperactivity disorder in children. METHODS: Study 1 evaluated the time course of response to MPH-MLR (n = 26) patients in an analog classroom setting through four phases: screening (≤28 days), open label (OL) dose optimization (4 weeks), double-blind (DB) crossover (2 weeks; placebo vs...
October 18, 2016: Journal of Child and Adolescent Psychopharmacology
https://www.readbyqxmd.com/read/27749546/high-prevalence-of-known-and-unknown-pulmonary-diseases-in-patients-with-claudication-during-exercise-oximetry-a-retrospective-analysis
#9
Christophe Colas-Ribas, Isabelle Signolet, Samir Henni, Mathieu Feuillloy, Frédéric Gagnadoux, Pierre Abraham
The prevalence of pulmonary disease in patients with peripheral artery disease (PAD) has not been extensively studied. Recent evidence has shown that ∼20% of the patients have an atypical chest transcutaneous oxygen pressure (TcpO2) pattern during exercise, which suggests walking-induced hypoxemia. The main objectives of this study were to: (1) describe in a retrospective way the characteristics of the patients suffering from claudication, who attended a treadmill testing in our laboratory, (2) assess the prevalence of known or unknown pulmonary disease...
October 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27746708/comparative-study-of-neuropharmacological-analgesic-properties-and-phenolic-profile-of-ajwah-safawy-and-sukkari-cultivars-of-date-palm-phoenix-dactylifera
#10
Bassem Yousef Sheikh, S M Neamul Kabir Zihad, Nazifa Sifat, Shaikh J Uddin, Jamil A Shilpi, Omer A A Hamdi, Hemayet Hossain, Razina Rouf, Ismet Ara Jahan
In addition to the rich nutritional value, date palm is also used in various ethnobotanical practices for the treatment of various disease conditions. Present investigation was undertaken to examine the neuropharmacological and antinociceptive effect of the ethanol extract of three date cultivars growing in Saudi Arabia, namely Ajwah, Safawy and Sukkari. Neuropharmacological effect was observed by pentobarbitone induced sleeping time, open field, and hole board test. Antinociceptive activity was tested by acetic acid induced writhing and hot plate test...
2016: Oriental Pharmacy and Experimental Medicine
https://www.readbyqxmd.com/read/27712107/light-therapy-with-scheduled-rise-times-in-young-adults-with-delayed-sleep-phase-disorder-therapeutic-outcomes-and-possible-predictors
#11
Katarina Danielsson, Markus Jansson-Fröjmark, Jan-Erik Broman, Agneta Markström
Clinical trials with light therapy (LT) for delayed sleep phase disorder (DSPD) are sparse and little is known about factors that are favorable for improvements. In this study, LT with scheduled rise times was conducted at home for 14 days by 44 participants with DSPD aged 16-26 years. Primary outcomes were sleep onset and sleep offset. Potential predictors were demographic characteristics, chronotype, dim light melatonin onset, the number of days the LT lamp was used, the daily duration of LT, daytime sleepiness, anxiety, depression, worry, and rumination...
August 11, 2016: Behavioral Sleep Medicine
https://www.readbyqxmd.com/read/27692987/neurocognitive-function-in-children-with-primary-hypertension
#12
Marc B Lande, Donald L Batisky, Juan C Kupferman, Joshua Samuels, Stephen R Hooper, Bonita Falkner, Shari R Waldstein, Peter G Szilagyi, Hongyue Wang, Jennifer Staskiewicz, Heather R Adams
OBJECTIVE: To compare neurocognitive test performance of children with primary hypertension with that of normotensive controls. STUDY DESIGN: Seventy-five children (10-18 years of age) with newly diagnosed, untreated hypertension and 75 frequency-matched normotensive controls had baseline neurocognitive testing as part of a prospective multicenter study of cognition in primary hypertension. Subjects completed tests of general intelligence, attention, memory, executive function, and processing speed...
September 27, 2016: Journal of Pediatrics
https://www.readbyqxmd.com/read/27692050/prevalence-of-circadian-misalignment-and-its-association-with-depressive-symptoms-in-delayed-sleep-phase-disorder
#13
Jade M Murray, Tracey L Sletten, Michelle Magee, Christopher Gordon, Nicole Lovato, Delwyn J Bartlett, David J Kennaway, Leon C Lack, Ronald R Grunstein, Steven W Lockley, Shantha M W Rajaratnam
STUDY OBJECTIVE: To examine the prevalence of circadian misalignment in clinically diagnosed DSPD, and compare mood and daytime functioning in those with and without a circadian basis for the disorder. METHODS: 182 DSPD patients aged 16 to 64 years, engaged in regular employment or school, underwent sleep-wake monitoring in the home, followed by a sleep laboratory visit for assessment of salivary dim light melatonin onset (DLMO). Based on the DLMO assessments, patients were classified into two groups: circadian DSPD, defined as DLMO occurring at or after desired bedtime, or non-circadian DSPD, defined as DLMO occurring before desired bedtime...
September 26, 2016: Sleep
https://www.readbyqxmd.com/read/27683195/first-evidence-of-smith-magenis-syndrome-in-mother-and-daughter-due-to-a-novel-rai-mutation
#14
Fabio Acquaviva, Maria Elena Sana, Matteo Della Monica, Michele Pinelli, Diana Postorivo, Paolo Fontana, Maria Teresa Falco, Anna Maria Nardone, Fortunato Lonardo, Maria Iascone, Gioacchino Scarano
Smith-Magenis syndrome (SMS) is a complex genetic disorder caused by interstitial 17p11.2 deletions encompassing multiple genes, including the retinoic acid induced 1 gene-RAI1-or mutations in RAI1 itself. The clinical spectrum includes developmental delay, cognitive impairment, and behavioral abnormalities, with distinctive physical features that become more evident with age. No patients have been reported to have had offspring. We here describe a girl with developmental delay, mainly compromising the speech area, and her mother with mild intellectual disabilities and minor dysmorphic features...
September 28, 2016: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/27676922/disability-and-cognitive-disorder-4-cases-of-dysimmune-encephalities
#15
Etienne Savard
OBJECTIVE: Dysimmune encephalitis are neurologic diseases that are more and more diagnosed. Most of patients are young and active. Cognitive and behavior troubles can delay the diagnosis and can cause disability. Functional outcome is not routinely assessed. The aim of this study is to describe the activities and participation several months after the onset. MATERIALS/PATIENTS AND METHODS: Four cases have been handled in the same multidisciplinary rehabilitation unit...
September 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27669996/-how-to-characterize-and-treat-sleep-complaints-in-bipolar-disorders
#16
P A Geoffroy, J-A Micoulaud Franchi, R Lopez, I Poirot, A Brion, S Royant-Parola, B Etain
OBJECTIVES: Sleep complaints are very common in bipolar disorders (BD) both during acute phases (manic and depressive episodes) and remission (about 80 % of patients with remitted BD have poor sleep quality). Sleep complaints during remission are of particular importance since they are associated with more mood relapses and worse outcomes. In this context, this review discusses the characterization and treatment of sleep complaints in BD. METHODS: We examined the international scientific literature in June 2016 and performed a literature search with PubMed electronic database using the following headings: "bipolar disorder" and ("sleep" or "insomnia" or "hypersomnia" or "circadian" or "apnoea" or "apnea" or "restless legs")...
September 23, 2016: L'Encéphale
https://www.readbyqxmd.com/read/27647493/the-5-ht6-receptor-antagonist-idalopirdine-potentiates-the-effects-of-donepezil-on-gamma-oscillations-in-the-frontal-cortex-of-anesthetized-and-awake-rats-without-affecting-sleep-wake-architecture
#17
Maria Amat-Foraster, Steven C Leiser, Kjartan F Herrik, Nelly Richard, Claus Agerskov, Christoffer Bundgaard, Jesper F Bastlund, Inge E M de Jong
The 5-HT6 receptor is a promising target for cognitive disorders, in particular for Alzheimer's disease (AD). The high affinity and selective 5-HT6 receptor antagonist idalopirdine (Lu AE58054) is currently in development for mild-moderate AD as adjunct therapy to acetylcholinesterase inhibitors (AChEIs). We studied the effects of idalopirdine alone and in combination with the AChEI donepezil on cortical function using two in vivo electrophysiological methods. Neuronal network oscillations in the frontal cortex were measured during electrical stimulation of the brainstem nucleus pontis oralis (nPO) in the anesthetized rat and by an electroencephalogram (EEG) in the awake, freely moving rat...
September 16, 2016: Neuropharmacology
https://www.readbyqxmd.com/read/27615053/phenotype-of-7q11-23-duplication-a-family-clinical-series
#18
Beth A Earhart, Marian E Williams, Irina Zamora, Linda Marie Randolph, Jodie K Votava-Smith, Stephanie N Marcy
Duplication 7q11.23 syndrome is the reciprocal of Williams-Beuren deletion syndrome. Studies have reported a recognizable phenotype, including autism, intellectual disability, speech, and language delay, social anxiety, and behavioral difficulties in these individuals. Previous studies revealed a variety of craniofacial abnormalities, brain malformations, and cardiac abnormalities, including aortic dilation. This patient series evaluates five family members aged 2 months to 35 years, all with confirmed 7q11...
September 12, 2016: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/27611743/can-the-circadian-phase-be-estimated-from-self-reported-sleep-timing-in-patients-with-delayed-sleep-wake-phase-disorder-to-guide-timing-of-chronobiologic-treatment
#19
Nicole Lovato, Gorica Micic, Michael Gradisar, Sally A Ferguson, Helen J Burgess, David J Kennaway, Leon Lack
INTRODUCTION: The efficacy of bright light and/or melatonin treatment for Delayed Sleep Wake Phase Disorder (DSWPD) is contingent upon an accurate clinical assessment of the circadian phase. However, the process of determining this circadian phase can be costly and is not yet readily available in the clinical setting. The present study investigated whether more cost-effective and convenient estimates of the circadian phase, such as self-reported sleep timing, can be used to predict the circadian phase and guide the timing of light and/or melatonin treatment (i...
2016: Chronobiology International
https://www.readbyqxmd.com/read/27598454/efficiency-of-melatonin-as-compared-to-pentobarbital-for-audiometry-brainstem-response-in-children-with-associated-disorders
#20
Joanne Guerlain, Antoine Paul, Isabelle Rouillon, Marine Parodi, Erea Noel Garabedian, Natalie Loundon
PURPOSE: Outpatient pediatric audiometry brainstem response (ABR) uses various techniques (no drug, hydroxyzine, pentobarbital, melatonin). The aim of this study was to evaluate the efficiency of melatonin as compared to pentobarbital in children with associated disorders. METHOD: This was a retrospective study that took place in a tertiary care center. Eighty-three children (34 girls and 49 boys) had performed ABR under pentobarbital (GPent) or melatonin (GMel) between 2013 and 2014 and were included...
September 1, 2016: American Journal of Audiology
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