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Author (up) Paul, M.A.; Love, R.J.; Hawton, A.; Brett, K.; McCreary, D.R.; Arendt, J.
Title Sleep deficits in the high Arctic summer in relation to light exposure and behaviour: use of melatonin as a countermeasure Type Journal Article
Year 2015 Publication Sleep Medicine Abbreviated Journal Sleep Medicine
Volume Issue Pages
Keywords Human Health; Sleep
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Series Volume Series Issue Edition
ISSN 1389-9457 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number LoNNe @ christopher.kyba @ Serial 1093
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Author (up) Peixoto, C.A.T.; da Silva, A.G.T.; Carskadon, M.A.; Louzada, F.M.
Title Adolescents living in homes without electric lighting have earlier sleep times Type Journal Article
Year 2009 Publication Behavioral Sleep Medicine Abbreviated Journal Behav Sleep Med
Volume 7 Issue 2 Pages 73-80
Keywords Human Health; Sleep
Abstract The aim of this project was to compare circadian rhythmicity of a group of 37 adolescents (14 girls), aged 11 to 16 (mean age = 13.1 +/- 1.7 years), with and without electricity at home. Twenty students attended morning school (07:30-11:30), and 17 attended evening school classes (19:00-22:30). Eleven adolescents had no electric lighting at home (5 attended morning classes and 6 attended evening classes). They completed a sleep log and wore a wrist actigraph for 5 consecutive days. Saliva samples were collected to assess DLMO. Data were compared by ANOVA and showed later timing and a more extended sleep period for those who attended late classes. Those adolescents without electricity at home had significantly earlier sleep onset on school days. As to DLMO, a trend to a delay was observed in the groups who had electric lighting.
Address Department of Physiology, Universidade Federal do Parana, Brazil. pedatardelli@yahoo.com.br
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Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1540-2002 ISBN Medium
Area Expedition Conference
Notes PMID:19330580 Approved no
Call Number LoNNe @ kyba @ Serial 1481
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Author (up) Pereira, É.F.; Louzada, F.M.; Moreno, C.R.C.
Title Not all adolescents are sleep deprived: A study of rural populations: Sleep duration in rural populations Type Journal Article
Year 2010 Publication Sleep and Biological Rhythms Abbreviated Journal
Volume 8 Issue 4 Pages 267-273
Keywords Human Health; Sleep
Abstract The objective of this study was to investigate the role of environmental factors in sleep duration among adolescents living in rural areas. A total of 1140 students (569 males), aged 10–19 years, and attending two schools in rural regions in southern Brazil, completed a questionnaire about their sleep habits. Demographic data were also obtained. Prevalence ratios (PR) were estimated for the cases of more than 9 h of sleep on weekdays. Sleep duration in adolescents with and without electric lighting at home was analyzed. Average sleep duration at night was 9.63 (1.64) h on school-going days and 10.14 (2.42) h on weekends. The prevalence of adolescents sleeping for more than 9 h at night on school-going days was 58.3%. Older adolescents showed a tendency to delay their sleep onset times, which is associated with a reduction of sleep duration. Adolescents without electric lighting at home slept longer on school-going days (P < 0.001) and on weekends (P= 0.013) when compared to those with electric lighting at home. From multivariate analysis, age (P < 0.001), school schedule (P= 0.007) and work (0.042) were factors affecting sleep duration. In contrast to the data previously reported for urban populations, we found a high prevalence of adolescents sleeping for more than 9 h on school nights. Data on populations living in less industrialized regions reinforce the idea that technological advances are associated with the negative impact of sleep phase delay in adolescents.
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ISSN 1446-9235 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number LoNNe @ kyba @ Serial 1482
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Author (up) Prayag, A.; Münch, M.; Aeschbach, D.; Chellappa, S.; Gronfier, C.
Title Light Modulation of Human Clocks, Wake, and Sleep Type Journal Article
Year 2019 Publication Clocks & Sleep Abbreviated Journal Clocks & Sleep
Volume 1 Issue 1 Pages 193-208
Keywords Human Health; Review
Abstract Light, through its non-imaging forming effects, plays a dominant role on a myriad of physiological functions, including the human sleep–wake cycle. The non-image forming effects of light heavily rely on specific properties such as intensity, duration, timing, pattern, and wavelengths. Here, we address how specific properties of light influence sleep and wakefulness in humans through acute effects, e.g., on alertness, and/or effects on the circadian timing system. Of critical relevance, we discuss how different characteristics of light exposure across the 24-h day can lead to changes in sleep–wake timing, sleep propensity, sleep architecture, and sleep and wake electroencephalogram (EEG) power spectra. Ultimately, knowledge on how light affects sleep and wakefulness can improve light settings at home and at the workplace to improve health and well-being and optimize treatments of chronobiological disorders.
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ISSN 2624-5175 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number GFZ @ kyba @ Serial 2266
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Author (up) Savarese, M.; Di Perri, M.C.
Title Excessive sleepiness in shift work disorder: a narrative review of the last 5 years Type Journal Article
Year 2019 Publication Sleep & Breathing = Schlaf & Atmung Abbreviated Journal Sleep Breath
Volume Issue Pages 1-14
Keywords Human Health; Alertness; Armodafinil; Insomnia; Performance; Shift work disorder; excessive sleepiness; StimulaCentral Nervous System Stimulants; Review
Abstract INTRODUCTION: Shift work sleep disorder (SWSD), also known as shift work disorder (SWD), is a circadian rhythm sleep disorder characterized by insomnia and/or excessive sleepiness, associated with a recurring work schedule that overlaps the usual time designated for sleeping. PURPOSE: This article aims to provide a narrative review of the pharmacological trials conducted on SWD in the last 5 years, to better address safety and health issues inherent to this disorder. METHODS: An electronic literature search was conducted using PubMed. All eligible randomized controlled trials (RCTs) and cross-over RCTs with employees undertaking shift work (including night shifts) were considered, yielding three articles. RESULTS: All three studies showed the efficacy of armodafinil in improving subjective and objective sleepiness, clinical conditions, and global functioning regardless of shift duration. Both performance and driving simulator performance tests administered during the night shift bore better results following armodafinil administration than after placebo. However, armodafinil only reduced subjective disability in individuals working more than 9 h; furthermore, even after armodafinil, alertness was reduced but not normalized. CONCLUSION: These studies underscore the importance of preventing and/or minimizing disturbances due to shift work. This may be achieved through various strategies, such as the employer's commitment to adopt ergonomic criteria in shift design and to implement work-environment interventions like controlled bright light. Health personnel is of pivotal importance to detect potential factors of intolerance to shift work or early symptoms of SWD. Additional and improved studies are needed to further evaluate the effectiveness and safety of both pharmacological and non-pharmacological interventions.
Address Center of Sleep Medicine, UOSD of Neurophysiopathology and Disorders of Movement, AOU G Martino, Department of Clinical and Experimental Medicine, University of Messina, 98121, Messina, Italy. mdiperri@wesleyan.edu
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Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1520-9512 ISBN Medium
Area Expedition Conference
Notes PMID:31471831 Approved no
Call Number GFZ @ kyba @ Serial 2662
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