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Fabries P, Gomez-Merino D, Sauvet F, Malgoyre A, Koulmann N, Chennaoui M. Sleep loss effects on physiological and cognitive responses to systemic environmental hypoxia. Front Physiol 2022; 13:1046166. [PMID: 36579023 PMCID: PMC9792101 DOI: 10.3389/fphys.2022.1046166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 11/29/2022] [Indexed: 12/15/2022] Open
Abstract
In the course of their missions or training, alpinists, but also mountain combat forces and mountain security services, professional miners, aircrew, aircraft and glider pilots and helicopter crews are regularly exposed to altitude without oxygen supplementation. At altitude, humans are exposed to systemic environmental hypoxia induced by the decrease in barometric pressure (<1,013 hPa) which decreases the inspired partial pressure of oxygen (PIO2), while the oxygen fraction is constant (equal to approximately 20.9%). Effects of altitude on humans occur gradually and depend on the duration of exposure and the altitude level. From 1,500 m altitude (response threshold), several adaptive responses offset the effects of hypoxia, involving the respiratory and the cardiovascular systems, and the oxygen transport capacity of the blood. Fatigue and cognitive and sensory disorders are usually observed from 2,500 m (threshold of prolonged hypoxia). Above 3,500 m (the threshold for disorders), the effects are not completely compensated and maladaptive responses occur and individuals develop altitude headache or acute altitude illness [Acute Mountain Sickness (AMS)]. The magnitude of effects varies considerably between different physiological systems and exhibits significant inter-individual variability. In addition to comorbidities, the factors of vulnerability are still little known. They can be constitutive (genetic) or circumstantial (sleep deprivation, fatigue, speed of ascent.). In particular, sleep loss, a condition that is often encountered in real-life settings, could have an impact on the physiological and cognitive responses to hypoxia. In this review, we report the current state of knowledge on the impact of sleep loss on responses to environmental hypoxia in humans, with the aim of identifying possible consequences for AMS risk and cognition, as well as the value of behavioral and non-pharmacological countermeasures.
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Affiliation(s)
- Pierre Fabries
- REF-Aero Department, French Armed Forces Biomedical Research Institute—IRBA, Brétigny-sur-Orge, France,Laboratoire de Biologie de l’Exercice pour la Performance et la Santé (LBEPS), UMR, Université Paris-Saclay, IRBA, Evry-Courcouronnes, France,French Military Health Academy—Ecole du Val-de-Grâce, Place Alphonse Laveran, Paris, France,*Correspondence: Pierre Fabries,
| | - Danielle Gomez-Merino
- REF-Aero Department, French Armed Forces Biomedical Research Institute—IRBA, Brétigny-sur-Orge, France,Vigilance Fatigue Sommeil et Santé Publique (VIFASOM) URP 7330, Université de Paris Cité, Paris, France
| | - Fabien Sauvet
- REF-Aero Department, French Armed Forces Biomedical Research Institute—IRBA, Brétigny-sur-Orge, France,French Military Health Academy—Ecole du Val-de-Grâce, Place Alphonse Laveran, Paris, France,Vigilance Fatigue Sommeil et Santé Publique (VIFASOM) URP 7330, Université de Paris Cité, Paris, France
| | - Alexandra Malgoyre
- REF-Aero Department, French Armed Forces Biomedical Research Institute—IRBA, Brétigny-sur-Orge, France,Laboratoire de Biologie de l’Exercice pour la Performance et la Santé (LBEPS), UMR, Université Paris-Saclay, IRBA, Evry-Courcouronnes, France
| | - Nathalie Koulmann
- Laboratoire de Biologie de l’Exercice pour la Performance et la Santé (LBEPS), UMR, Université Paris-Saclay, IRBA, Evry-Courcouronnes, France,French Military Health Academy—Ecole du Val-de-Grâce, Place Alphonse Laveran, Paris, France
| | - Mounir Chennaoui
- REF-Aero Department, French Armed Forces Biomedical Research Institute—IRBA, Brétigny-sur-Orge, France,Vigilance Fatigue Sommeil et Santé Publique (VIFASOM) URP 7330, Université de Paris Cité, Paris, France
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Vanttola P, Härmä M, Hublin C, Viitasalo K, Sallinen M, Virkkala J, Puttonen S. Do holidays change subjective sleep length or sleep debt in shift work disorder? INDUSTRIAL HEALTH 2022; 60:559-566. [PMID: 35173132 PMCID: PMC9726609 DOI: 10.2486/indhealth.2020-0215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 02/03/2022] [Indexed: 06/14/2023]
Abstract
In shift work disorder (SWD), disturbed sleep acutely impairs employees' recovery, but little attention has been paid to sleep during longer recovery periods. We examined how holidays affect self-estimated sleep length, sleep debt, and recovery in cases of SWD. Twenty-one shift workers with questionnaire-based SWD and nine reference cases without SWD symptoms completed a questionnaire on recovery and sleep need. They also reported sleep length on two separate occasions: during a work period and after ≥ 2 weeks of holidays. Sleep debt was calculated by subtracting sleep length from sleep need. We used parametric tests to compare the groups and the periods. The groups reported shorter sleep on workdays than during holidays (median difference: SWD group 1.7 h, p<0.001; reference group 1.5 h; p<0.05). The SWD group's self-estimated sleep during holidays increased less above the sleep need (median 0.0 h) than the reference group's sleep (1.0 h, p<0.05). In addition, the SWD group reported good recovery from irregular working hours less often (14%) than the reference group (100%, p<0.001). Although holidays were generally associated with longer sleep estimates than workdays, employees with SWD experienced consistently less efficient recovery than those without SWD.
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Affiliation(s)
| | - Mikko Härmä
- Finnish Institute of Occupational Health, Finland
| | | | | | - Mikael Sallinen
- Finnish Institute of Occupational Health, Finland
- Department of Psychology, University of Jyväskylä, Finland
| | - Jussi Virkkala
- Finnish Institute of Occupational Health, Finland
- Department of Clinical Neurophysiology, University of Helsinki and Helsinki University Hospital, Finland
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Gan J, Wang XD, Shi Z, Yuan J, Zhang M, Liu S, Wang F, You Y, Jia P, Feng L, Xu J, Zhang J, Hu W, Chen Z, Ji Y. The Impact of Rotating Night Shift Work and Daytime Recharge on Cognitive Performance Among Retired Nurses. Front Aging Neurosci 2022; 13:827772. [PMID: 35145395 PMCID: PMC8821912 DOI: 10.3389/fnagi.2021.827772] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 12/22/2021] [Indexed: 11/13/2022] Open
Abstract
IntroductionThe exact relationship between long-term shift work (SW) and cognitive impairment (CI) has been poorly understood. The effects of the long-term rotating night SW (RNSW) combining daytime recharge (DTR) on cognitive function were investigated.MethodsA total 920 retired nurses and 656 retired female teachers aged ≥50 years were analyzed. Participants who worked at least once per week for 8 hat night for more than 1 year were defined as the SW group, and those without a regular nighttime shift were defined as the control group. The associations among duration, frequency, and DTR of RNSW, and neuropsychological assessments were ascertained by regression models.ResultsParticipants with RNSW had a significantly higher proportion of mild CI (MCI), both amnestic MCI (aMCI) (14.4% in 11–20 years, p < 0.05, and 17.8% in > 20 years, p < 0.001) and non-amnestic MCI (naMCI) (8.1% in 11–20 years, p < 0.05), as well as dementia (1.5% in 1–10 years, and 11.7% in > 20 years, p < 0.05) compared to controls (8.4% with aMCI, 4.4% with naMCI, and 7.0% with dementia, respectively). There were significant negative relationships between general times of night SW and scores of Mini-Mental State Examination (MMSE) (R squared = 0.01, p = 0.0014) and Montreal Cognitive Assessment (MoCA) (R squared = 0.01, p = 0.0054). Participants with ≥1 h of DTR and ≥ 11 years of RNSW were about 2-fold more likely to experience MCI compared with the subjects in the control group, especially with 3–5 h (odds ratio [OR]: 2.35; 95% confidence interval: 1.49–3.68, p < 0.001).ConclusionThe long-term RNSW was associated with a higher risk of CI, especially aMCI and dementia, and the problem cannot be improved by DTR.
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Affiliation(s)
- Jinghuan Gan
- Department of Neurology, China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Xiao-Dan Wang
- Tianjin Key Laboratory of Cerebrovascular and of Neurodegenerative Diseases, Department of Neurology, Tianjin Huanhu Hospital, Tianjin Dementia Institute, Tianjin, China
| | - Zhihong Shi
- Tianjin Key Laboratory of Cerebrovascular and of Neurodegenerative Diseases, Department of Neurology, Tianjin Huanhu Hospital, Tianjin Dementia Institute, Tianjin, China
| | - Junliang Yuan
- NHC Key Laboratory of Mental Health (Peking University), Department of Neurology, National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Peking University Sixth Hospital, Peking University Institute of Mental Health, Beijing, China
| | - Meiyun Zhang
- Department of Neurology, Tianjin People’s Hospital, Tianjin, China
| | - Shuai Liu
- Tianjin Key Laboratory of Cerebrovascular and of Neurodegenerative Diseases, Department of Neurology, Tianjin Huanhu Hospital, Tianjin Dementia Institute, Tianjin, China
| | - Fei Wang
- Department of Neurology, Yuncheng Central Hospital of Shanxi Province, Yuncheng, China
| | - Yong You
- Department of Neurology, Second Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Peifei Jia
- Department of Neurology, The Second Affiliated Hospital of Baotou Medical College, Baotou, China
| | - Lisha Feng
- Department of Encephalopathy, Research Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Junying Xu
- Department of Neurology, Tianjin Baodi People’s Hospital, Tianjin, China
| | - Jinhong Zhang
- Department of Neurology, Cangzhou People’s Hospital, Cangzhou, China
| | - Wenzheng Hu
- Department of Neurology, China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Zhichao Chen
- Department of Neurology, China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Yong Ji
- Department of Neurology, China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- Tianjin Key Laboratory of Cerebrovascular and of Neurodegenerative Diseases, Department of Neurology, Tianjin Huanhu Hospital, Tianjin Dementia Institute, Tianjin, China
- *Correspondence: Yong Ji,
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Abstract
Unlike other reviews written on this topic, the focus of this article is primarily on nonpharmacologic treatments for daytime sleepiness that is not secondary to other medical or psychological conditions. To provide an appropriate background on primary excessive daytime sleepiness, what is considered optimal sleep in terms of sleep duration, sleep insufficiency, and sleep need is discussed in detail. This discussion is followed by an examination of the behavioral strategy of banking sleep. After briefly discussing behavioral interventions for sleepiness associated with narcolepsy, a new behavioral method of treating daytime somnolence is proposed and described.
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Affiliation(s)
- Matthew R Ebben
- Department of Neurology, Center for Sleep Medicine, Weill Cornell Medical College of Cornell University, 425 East 61st Street, 5th Floor, New York, NY 10065, USA.
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5
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Duraccio KM, Krietsch KN, Zhang N, Whitacre C, Howarth T, Pfeiffer M, Beebe DW. The impact of short sleep on food reward processes in adolescents. J Sleep Res 2020; 30:e13054. [PMID: 32379383 DOI: 10.1111/jsr.13054] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 03/11/2020] [Accepted: 04/07/2020] [Indexed: 01/15/2023]
Abstract
Short sleep has been linked to adolescent risk of obesity, but questions remain regarding the dietary mechanisms by which this occurs. We tested whether mildly shortening sleep influences how rewarding and appealing healthy adolescents find several kinds of foods. Eighty-eight healthy adolescents completed a within-subjects crossover sleep experiment comparing 5 days of Short Sleep (6.5 hr sleep opportunity) with 5 days of Healthy Sleep (9.5 hr sleep opportunity). Following each condition, adolescents completed measures of food appeal and reinforcing value of food across five food types: sweets/desserts, fruits/vegetables, lean meats/eggs, fast food and processed snacks. Adolescents averaged 2.2 hr/night longer sleep periods in Healthy Sleep versus Short Sleep. We observed a significant interaction of experimental order with sleep condition on three of four primary outcomes related to the appeal and reinforcing value of foods (p's < .005). When Short Sleep preceded Healthy Sleep, adolescents endorsed significantly greater appeal (p < .04) and rewarding value of food (p's ranging from <.01 to .048) during Short Sleep (compared to Healthy Sleep). However, when Healthy Sleep preceded Short Sleep, we did not observe a main effect of sleep condition on the same outcomes (p's > .05). This study provides evidence that restricting adolescents' sleep opportunity to 6.5 hr (compared to sleeping a healthy amount) increases the appeal and reinforcing value of a variety of foods, but this may occur only under protracted short sleep. Increased food reward may be one mechanism linking chronically shortened sleep with risk of obesity in adolescence.
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Affiliation(s)
- Kara M Duraccio
- Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | | | - Nanhua Zhang
- Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.,University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | | | - Taylor Howarth
- Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Megan Pfeiffer
- Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Dean W Beebe
- Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.,University of Cincinnati College of Medicine, Cincinnati, OH, USA
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6
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Alger SE, Brager AJ, Balkin TJ, Capaldi VF, Simonelli G. Effect of cognitive load and emotional valence of distractors on performance during sleep extension and subsequent sleep deprivation. Sleep 2020; 43:5722315. [DOI: 10.1093/sleep/zsaa013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 01/23/2020] [Indexed: 12/21/2022] Open
Abstract
Abstract
Study Objectives
The purpose of the present study was to assess the extent to which sleep extension followed by sleep deprivation impacts performance on an attentional task with varying cognitive and attentional demands that influence decisions.
Methods
Task performance was assessed at baseline, after 1 week of sleep extension, and after 40 h of total sleep deprivation.
Results
One week of sleep extension resulted in improved performance, particularly for high cognitive load decisions regardless of the emotional salience of attentional distractors. Those who extended sleep the most relative to their habitual sleep duration showed the greatest improvement in general performance during sleep extension. However, a higher percentage of time spent in slow-wave sleep (SWS) on the last night of the sleep extension phase was negatively correlated with performance on more difficult high cognitive load items, possibly reflecting a relatively higher level of residual sleep need. Sleep deprivation generally resulted in impaired performance, with a nonsignificant trend toward greater performance decrements in the presence of emotionally salient distractors. Performance overall, but specifically for high cognitive load decisions, during total sleep deprivation was negatively correlated with longer sleep and higher SWS percentage during subsequent recovery sleep.
Conclusions
The present findings suggest two possibilities: those who performed relatively poorly during sleep deprivation were more vulnerable because (1) they utilized mental resources (i.e. accrued sleep debt) at a relatively faster rate during wakefulness, and/or (2) they failed to “pay down” pre-study sleep debt to the same extent as better-performing participants during the preceding sleep extension phase.
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Affiliation(s)
- Sara E Alger
- Behavioral Biology Branch, Walter Reed Army Institute of Research, Silver Spring, MD
| | - Allison J Brager
- Behavioral Biology Branch, Walter Reed Army Institute of Research, Silver Spring, MD
| | - Thomas J Balkin
- Behavioral Biology Branch, Walter Reed Army Institute of Research, Silver Spring, MD
- Oak Ridge Institute for Science and Education, Oak Ridge, TN
| | - Vincent F Capaldi
- Behavioral Biology Branch, Walter Reed Army Institute of Research, Silver Spring, MD
| | - Guido Simonelli
- Behavioral Biology Branch, Walter Reed Army Institute of Research, Silver Spring, MD
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7
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Does evidence support “banking/extending sleep” by shift workers to mitigate fatigue, and/or to improve health, safety, or performance? A systematic review. Sleep Health 2019; 5:359-369. [DOI: 10.1016/j.sleh.2019.03.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 02/21/2019] [Accepted: 03/01/2019] [Indexed: 11/17/2022]
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8
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Lasselin J, Ingre M, Regenbogen C, Olsson MJ, Garke M, Brytting M, Edgar R, Lekander M, Axelsson J. Sleep during naturally occurring respiratory infections: A pilot study. Brain Behav Immun 2019; 79:236-243. [PMID: 30742884 PMCID: PMC7127143 DOI: 10.1016/j.bbi.2019.02.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 02/06/2019] [Accepted: 02/07/2019] [Indexed: 02/06/2023] Open
Abstract
There is strong experimental support that infections increase the drive for sleep in animals, and it is widely believed that more sleep is part of an adaptive immune response. While respiratory infections (RI) are very prevalent in humans, there is a striking lack of systematic knowledge on how it affects sleep. We recruited 100 people, among whom 28 became sick with an RI during the study period (fulfilling criteria for influenza-like illness, ILI, or acute respiratory infection, ARI). We measured sick participants' sleep at home, both objectively (actigraphy) and subjectively (diary ratings), for one week as well as four weeks later when healthy. During the week with RI, people spent objectively longer time in bed and had a longer total sleep time compared to the healthy week. During the infection, participants also had more awakenings, but no significant differences in sleep latency or sleep efficiency. While sick, people also reported increased difficulties falling asleep, worse sleep quality, more restless sleep and more shallow sleep, while they did not report sleep to be less sufficient. Most problems occurred at the beginning of the sickness week, when symptoms were strong, and showed signs of recovery thereafter (as indicated by interactions between condition and day/night of data collection for all the 10 sleep outcomes). The degree of symptoms of RI was related to a worse sleep quality and more restless sleep, but not to any of the objective sleep outcomes or the other subjective sleep variables. Having a higher body temperature was not significantly related to any of the sleep variables. This study suggests that having a respiratory infection is associated with spending more time in bed and sleeping longer, but also with more disturbed sleep, both objectively and subjectively. This novel study should be seen as being of pilot character. There is a need for larger studies which classify pathogen type and include baseline predictors, or that manipulate sleep, in order to understand whether the sleep alterations seen during infections are adaptive and whether sleep interventions could be used to improve recovery from respiratory infections.
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Affiliation(s)
- Julie Lasselin
- Stress Research Institute, Stockholm University, Stockholm, Sweden,Department of Clinical Neuroscience, Division of Psychology, Karolinska Institutet, Stockholm, Sweden
| | - Michael Ingre
- Department of Clinical Neuroscience, Division of Psychology, Karolinska Institutet, Stockholm, Sweden
| | - Christina Regenbogen
- Department of Clinical Neuroscience, Division of Psychology, Karolinska Institutet, Stockholm, Sweden,Department of Psychiatry, Psychotherapy and Psychosomatics, Medical School, RWTH Aachen University, Aachen, Germany,JARA – BRAIN Institute 1: Structure-Function Relationship: Decoding the Human Brain at Systemic Levels, Forschungszentrum Jülich, Jülich, Germany
| | - Mats J. Olsson
- Department of Clinical Neuroscience, Division of Psychology, Karolinska Institutet, Stockholm, Sweden
| | - Maria Garke
- Department of Clinical Neuroscience, Division of Psychology, Karolinska Institutet, Stockholm, Sweden
| | - Mia Brytting
- Unit for Laboratory Surveillance of Viral Pathogens and Vaccine Preventable Diseases, The Public Health Agency of Sweden, Solna, Sweden
| | - Rachel Edgar
- Molecular Virology, Department of Medicine, Imperial College London, London, UK
| | - Mats Lekander
- Stress Research Institute, Stockholm University, Stockholm, Sweden,Department of Clinical Neuroscience, Division of Psychology, Karolinska Institutet, Stockholm, Sweden
| | - John Axelsson
- Stress Research Institute, Stockholm University, Stockholm, Sweden; Department of Clinical Neuroscience, Division of Psychology, Karolinska Institutet, Stockholm, Sweden.
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9
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Rabat A, Arnal PJ, Monnard H, Erblang M, Van Beers P, Bougard C, Drogou C, Guillard M, Sauvet F, Leger D, Gomez-Merino D, Chennaoui M. Limited Benefit of Sleep Extension on Cognitive Deficits During Total Sleep Deprivation: Illustration With Two Executive Processes. Front Neurosci 2019; 13:591. [PMID: 31275098 PMCID: PMC6594410 DOI: 10.3389/fnins.2019.00591] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 05/23/2019] [Indexed: 01/05/2023] Open
Abstract
Introduction: Sleep extension has been associated with better alertness and sustained attention capacities before, during and after sleep loss. However, less is known about such beneficial effect on executive functions (EFs). Our aim was to investigate such effects on two EFs (i.e., inhibition and working memory) for subjects submitted to total sleep deprivation and one-night of recovery. Methods: Fourteen healthy men (26-37 years old) participated in an experimental cross-over design with two conditions: extended sleep (EXT, 9.8 ± 0.1 h of Time In Bed, TIB) and habitual sleep (HAB, 8.2 ± 0.1 h TIB). During these two conditions subjects underwent two consecutive phases: Six nights of either EXT or HAB followed by 3 days in-laboratory: baseline (BASE), TSD (38 h) and after recovery (REC). EFs capacities were assessed through Go-NoGo (inhibition) and 2N-Back (working memory) tasks. Both EFs capacities were measured at different time (BASE/TSD/REC: 09:30, 13:00, 16:00; TSD: 21:00, 00:00, 03:00, 06:30). Results: In both conditions (HAB and EXT), TSD was associated with deficits in inhibition (higher errors and mean reaction time from TSD 09:30 until the end; p < 0.05) and working memory (lower corrects responses from TSD 06:30 or 09:30; p < 0.05). We observed no significant differences between HAB and EXT conditions on EFs capacities during BASE, TSD, and REC periods. Conclusion: Six nights of sleep extension is neither efficient to reduce core EFs deficits related to TSD nor to improve such capacities after a recovery night. These results highlight that sleep extension (six nights of 10 h of TIB) is not effective to limit EFs deficits related to TSD suggesting a disconnection inside cognition between executive and sustained attention processes. Clinical Trials: NCT02352272.
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Affiliation(s)
- Arnaud Rabat
- Unité Fatigue et Vigilance, Institut de Recherche Biomédicale des Armées, Brétigny-sur-Orge, France
- VIFASOM Team (EA 7330), Hotel Dieu Hospital, Paris Descartes University, Paris, France
| | - Pierrick J. Arnal
- Unité Fatigue et Vigilance, Institut de Recherche Biomédicale des Armées, Brétigny-sur-Orge, France
- VIFASOM Team (EA 7330), Hotel Dieu Hospital, Paris Descartes University, Paris, France
| | - Hortense Monnard
- Unité Fatigue et Vigilance, Institut de Recherche Biomédicale des Armées, Brétigny-sur-Orge, France
- VIFASOM Team (EA 7330), Hotel Dieu Hospital, Paris Descartes University, Paris, France
| | - Mégane Erblang
- Unité Fatigue et Vigilance, Institut de Recherche Biomédicale des Armées, Brétigny-sur-Orge, France
- VIFASOM Team (EA 7330), Hotel Dieu Hospital, Paris Descartes University, Paris, France
| | - Pascal Van Beers
- Unité Fatigue et Vigilance, Institut de Recherche Biomédicale des Armées, Brétigny-sur-Orge, France
- VIFASOM Team (EA 7330), Hotel Dieu Hospital, Paris Descartes University, Paris, France
| | - Clément Bougard
- Unité Fatigue et Vigilance, Institut de Recherche Biomédicale des Armées, Brétigny-sur-Orge, France
- VIFASOM Team (EA 7330), Hotel Dieu Hospital, Paris Descartes University, Paris, France
| | - Catherine Drogou
- Unité Fatigue et Vigilance, Institut de Recherche Biomédicale des Armées, Brétigny-sur-Orge, France
- VIFASOM Team (EA 7330), Hotel Dieu Hospital, Paris Descartes University, Paris, France
| | - Mathias Guillard
- Unité Fatigue et Vigilance, Institut de Recherche Biomédicale des Armées, Brétigny-sur-Orge, France
- VIFASOM Team (EA 7330), Hotel Dieu Hospital, Paris Descartes University, Paris, France
| | - Fabien Sauvet
- Unité Fatigue et Vigilance, Institut de Recherche Biomédicale des Armées, Brétigny-sur-Orge, France
- VIFASOM Team (EA 7330), Hotel Dieu Hospital, Paris Descartes University, Paris, France
| | - Damien Leger
- VIFASOM Team (EA 7330), Hotel Dieu Hospital, Paris Descartes University, Paris, France
- Alertness and Sleep Center, Hotel Dieu Hospital, Paris Descartes University, Paris, France
| | - Danielle Gomez-Merino
- Unité Fatigue et Vigilance, Institut de Recherche Biomédicale des Armées, Brétigny-sur-Orge, France
- VIFASOM Team (EA 7330), Hotel Dieu Hospital, Paris Descartes University, Paris, France
| | - Mounir Chennaoui
- Unité Fatigue et Vigilance, Institut de Recherche Biomédicale des Armées, Brétigny-sur-Orge, France
- VIFASOM Team (EA 7330), Hotel Dieu Hospital, Paris Descartes University, Paris, France
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Sauvet F, Gomez‐Merino D, Dorey R, Ciret S, Gallopin T, Drogou C, Arnal PJ, Chennaoui M. Lengthening of the photoperiod influences sleep characteristics before and during total sleep deprivation in rat. J Sleep Res 2018; 28:e12709. [DOI: 10.1111/jsr.12709] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 04/12/2018] [Accepted: 04/12/2018] [Indexed: 11/30/2022]
Affiliation(s)
- Fabien Sauvet
- Institut de Recherche Biomédicale des Armées (IRBA) Unité Fatigue et Vigilance Brétigny sur Orge France
- Université Paris Descartes Hôtel Dieu EA7330 VIFASOM Paris France
| | - Danielle Gomez‐Merino
- Institut de Recherche Biomédicale des Armées (IRBA) Unité Fatigue et Vigilance Brétigny sur Orge France
- Université Paris Descartes Hôtel Dieu EA7330 VIFASOM Paris France
| | - Rodolphe Dorey
- Institut de Recherche Biomédicale des Armées (IRBA) Unité Fatigue et Vigilance Brétigny sur Orge France
- Université Paris Descartes Hôtel Dieu EA7330 VIFASOM Paris France
| | - Sylvain Ciret
- Institut de Recherche Biomédicale des Armées (IRBA) Unité Fatigue et Vigilance Brétigny sur Orge France
| | - Thierry Gallopin
- ESPCI ParisTech Laboratoire Plasticité du cerveau CNRS UMR8249 Paris France
| | - Catherine Drogou
- Institut de Recherche Biomédicale des Armées (IRBA) Unité Fatigue et Vigilance Brétigny sur Orge France
- Université Paris Descartes Hôtel Dieu EA7330 VIFASOM Paris France
| | - Pierrick J. Arnal
- Institut de Recherche Biomédicale des Armées (IRBA) Unité Fatigue et Vigilance Brétigny sur Orge France
- Université Paris Descartes Hôtel Dieu EA7330 VIFASOM Paris France
| | - Mounir Chennaoui
- Institut de Recherche Biomédicale des Armées (IRBA) Unité Fatigue et Vigilance Brétigny sur Orge France
- Université Paris Descartes Hôtel Dieu EA7330 VIFASOM Paris France
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Riethmeister V, Bültmann U, De Boer MR, Gordijn M, Brouwer S. Examining courses of sleep quality and sleepiness in full 2 weeks on/2 weeks off offshore day shift rotations. Chronobiol Int 2018; 35:759-772. [PMID: 29767546 DOI: 10.1080/07420528.2018.1466794] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
To better understand sleep quality and sleepiness problems offshore, we examined courses of sleep quality and sleepiness in full 2-weeks on/2-weeks off offshore day shift rotations by comparing pre-offshore (1 week), offshore (2 weeks) and post-offshore (1 week) work periods. A longitudinal observational study was conducted among N=42 offshore workers. Sleep quality was measured subjectively with two daily questions and objectively with actigraphy, measuring: time in bed (TIB), total sleep time (TST), sleep latency (SL) and sleep efficiency percentage (SE%). Sleepiness was measured twice a day (morning and evening) with the Karolinska Sleepiness Scale. Changes in sleep and sleepiness parameters during the pre/post and offshore work periods were investigated using (generalized) linear mixed models. In the pre-offshore work period, courses of SE% significantly decreased (p=.038). During offshore work periods, the courses of evening sleepiness scores significantly increased (p<.001) and significantly decreased during post-offshore work periods (p=.004). During offshore work periods, TIB (p<.001) and TST (p<.001) were significantly shorter, SE% was significantly higher (p=.002), perceived sleep quality was significantly lower (p<.001) and level of rest after wake was significantly worse (p<.001) than during the pre- and post-offshore work periods. Morning sleepiness was significantly higher during offshore work periods (p=.015) and evening sleepiness was significantly higher in the post-offshore work period (p=.005) compared to the other periods. No significant changes in SL were observed. Courses of sleep quality and sleepiness parameters significantly changed during full 2-weeks on/2-weeks off offshore day shift rotation periods. These changes should be considered in offshore fatigue risk management programmes.
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Affiliation(s)
- V Riethmeister
- a Department of Health Sciences, Community and Occupational Medicine , University Medical Center Groningen, University of Groningen , Groningen , The Netherlands
| | - U Bültmann
- a Department of Health Sciences, Community and Occupational Medicine , University Medical Center Groningen, University of Groningen , Groningen , The Netherlands
| | - M R De Boer
- b Department of Health Sciences and the EMGO+ Institute for Health and Care Research, Faculty of Earth and Life Sciences , VU University Amsterdam , Amsterdam , The Netherlands
| | - M Gordijn
- c Chrono@Work B.V. Groningen, The Netherlands, and Chronobiology Unit , Groningen Institute for Evolutionary Life Sciences, University of Groningen , Groningen , The Netherlands
| | - S Brouwer
- a Department of Health Sciences, Community and Occupational Medicine , University Medical Center Groningen, University of Groningen , Groningen , The Netherlands
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Changes of Cerebral and/or Peripheral Adenosine A₁ Receptor and IGF-I Concentrations under Extended Sleep Duration in Rats. Int J Mol Sci 2017; 18:ijms18112439. [PMID: 29149028 PMCID: PMC5713406 DOI: 10.3390/ijms18112439] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 11/10/2017] [Accepted: 11/14/2017] [Indexed: 12/31/2022] Open
Abstract
Extended sleep improves sustained attention and reduces sleep pressure in humans. Downregulation of adenosine A₁ receptor (A₁R) and modulation of the neurotrophic factor insulin growth factor-1 (IGF-I) in brain structures controlling attentional capacities could be involved. In the frontal cortex and hippocampus of rats, we measured adenosine A₁R and IGF-I protein concentrations after photoperiod-induced sleep extension. Two groups of twelve rats were adapted over 14 days to a habitual (CON) 12:12 light-dark (LD) schedule and an extended (EXT) 16:8 LD schedule. IGF-I content was also measured in plasma, liver, and skeletal muscle. In EXT, compared to CON rats, A₁R content in the frontal cortex was significantly lower (p < 0.05), while IGF-I content was higher (p < 0.001), and no significant change was observed in the hippocampus. IGF-I content in plasma and muscle was higher (p < 0.001 and p < 0.01), while it was lower in liver (p < 0.001). The absolute weight and weight gain were higher in EXT rats (p < 0.01). These data suggest that 14 days under a 16:8 LD photoperiod respectively down- and upregulated cortical A₁R and IGF-I levels. This photoperiod induced an anabolic profile with increased weight gain and circulating and muscular IGF-I levels. An extension of sleep duration might favor cerebral and peripheral anabolism, which may help attentional and physical capacities.
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Abstract
Unlike other reviews written on this topic, the focus of this article is primarily on nonpharmacologic treatments for daytime sleepiness that is not secondary to other medical or psychological conditions. To provide an appropriate background on primary excessive daytime sleepiness, what is considered optimal sleep in terms of sleep duration, sleep insufficiency, and sleep need is discussed in detail. This discussion is followed by an examination of the behavioral strategy of banking sleep. After briefly discussing behavioral interventions for sleepiness associated with narcolepsy, a new behavioral method of treating daytime somnolence is proposed and described.
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Affiliation(s)
- Matthew R Ebben
- Department of Neurology, Center for Sleep Medicine, Weill Cornell Medical College of Cornell University, 425 East 61st Street, 5th Floor, New York, NY 10065, USA.
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