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Chen ZK, Liu YY, Zhou JC, Chen GH, Liu CF, Qu WM, Huang ZL. Insomnia-related rodent models in drug discovery. Acta Pharmacol Sin 2024; 45:1777-1792. [PMID: 38671193 PMCID: PMC11335876 DOI: 10.1038/s41401-024-01269-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 03/24/2024] [Indexed: 04/28/2024] Open
Abstract
Despite the widespread prevalence and important medical impact of insomnia, effective agents with few side effects are lacking in clinics. This is most likely due to relatively poor understanding of the etiology and pathophysiology of insomnia, and the lack of appropriate animal models for screening new compounds. As the main homeostatic, circadian, and neurochemical modulations of sleep remain essentially similar between humans and rodents, rodent models are often used to elucidate the mechanisms of insomnia and to develop novel therapeutic targets. In this article, we focus on several rodent models of insomnia induced by stress, diseases, drugs, disruption of the circadian clock, and other means such as genetic manipulation of specific neuronal activity, respectively, which could be used to screen for novel hypnotics. Moreover, important advantages and constraints of some animal models are discussed. Finally, this review highlights that the rodent models of insomnia may play a crucial role in novel drug development to optimize the management of insomnia.
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Affiliation(s)
- Ze-Ka Chen
- Department of Pharmacology, School of Basic Medical Sciences; State Key Laboratory of Medical Neurobiology, Institutes of Brain Science and Collaborative Innovation Center for Brain Science; Joint International Research Laboratory of Sleep; and Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
- Department of Pharmacology, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Yuan-Yuan Liu
- Department of Pharmacology, School of Basic Medical Sciences; State Key Laboratory of Medical Neurobiology, Institutes of Brain Science and Collaborative Innovation Center for Brain Science; Joint International Research Laboratory of Sleep; and Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Ji-Chuan Zhou
- Department of Pharmacology, School of Basic Medical Sciences; State Key Laboratory of Medical Neurobiology, Institutes of Brain Science and Collaborative Innovation Center for Brain Science; Joint International Research Laboratory of Sleep; and Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Gui-Hai Chen
- Department of Neurology (Sleep Disorders), the Affiliated Chaohu Hospital of Anhui Medical University, Hefei, 238000, China
| | - Chun-Feng Liu
- Department of Neurology and Clinical Research Center of Neurological Disease, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China.
| | - Wei-Min Qu
- Department of Pharmacology, School of Basic Medical Sciences; State Key Laboratory of Medical Neurobiology, Institutes of Brain Science and Collaborative Innovation Center for Brain Science; Joint International Research Laboratory of Sleep; and Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China.
| | - Zhi-Li Huang
- Department of Pharmacology, School of Basic Medical Sciences; State Key Laboratory of Medical Neurobiology, Institutes of Brain Science and Collaborative Innovation Center for Brain Science; Joint International Research Laboratory of Sleep; and Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China.
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2
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Chakravarty P, Ashbury AM, Strandburg-Peshkin A, Iffelsberger J, Goldshtein A, Schuppli C, Snell KRS, Charpentier MJE, Núñez CL, Gaggioni G, Geiger N, Rößler DC, Gall G, Yang PP, Fruth B, Harel R, Crofoot MC. The sociality of sleep in animal groups. Trends Ecol Evol 2024:S0169-5347(24)00176-9. [PMID: 39242333 DOI: 10.1016/j.tree.2024.07.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Revised: 07/15/2024] [Accepted: 07/19/2024] [Indexed: 09/09/2024]
Abstract
Group-living animals sleep together, yet most research treats sleep as an individual process. Here, we argue that social interactions during the sleep period contribute in important, but largely overlooked, ways to animal groups' social dynamics, while patterns of social interaction and the structure of social connections within animal groups play important, but poorly understood, roles in shaping sleep behavior. Leveraging field-appropriate methods, such as direct and video-based observation, and increasingly common on-animal motion sensors (e.g., accelerometers), behavioral indicators can be tracked to measure sleep in multiple individuals in a group of animals simultaneously. Sleep proximity networks and sleep timing networks can then be used to investigate the collective dynamics of sleep in wild group-living animals.
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Affiliation(s)
- Pritish Chakravarty
- Department for the Ecology of Animal Societies, Max Planck Institute of Animal Behavior, Konstanz, Germany; Centre for the Advanced Study of Collective Behaviour, University of Konstanz, Konstanz, Germany.
| | - Alison M Ashbury
- Department for the Ecology of Animal Societies, Max Planck Institute of Animal Behavior, Konstanz, Germany; Department of Biology, University of Konstanz, Konstanz, Germany
| | - Ariana Strandburg-Peshkin
- Department for the Ecology of Animal Societies, Max Planck Institute of Animal Behavior, Konstanz, Germany; Centre for the Advanced Study of Collective Behaviour, University of Konstanz, Konstanz, Germany; Department of Biology, University of Konstanz, Konstanz, Germany
| | - Josefine Iffelsberger
- Department for the Ecology of Animal Societies, Max Planck Institute of Animal Behavior, Konstanz, Germany; Department of Biology, University of Konstanz, Konstanz, Germany
| | - Aya Goldshtein
- Centre for the Advanced Study of Collective Behaviour, University of Konstanz, Konstanz, Germany; Department of Biology, University of Konstanz, Konstanz, Germany; Department of Collective Behavior, Max Planck Institute of Animal Behavior, Konstanz, Germany
| | - Caroline Schuppli
- Development and Evolution of Cognition Research Group, Max Planck Institute of Animal Behavior, Konstanz, Germany
| | - Katherine R S Snell
- Centre for the Advanced Study of Collective Behaviour, University of Konstanz, Konstanz, Germany; Department of Migration, Max Planck Institute of Animal Behavior, Konstanz, Germany
| | - Marie J E Charpentier
- Department for the Ecology of Animal Societies, Max Planck Institute of Animal Behavior, Konstanz, Germany; Institut des Sciences de l'Evolution de Montpellier (ISEM), UMR5554, University of Montpellier/CNRS/IRD/EPHE, Montpellier, France
| | - Chase L Núñez
- Department for the Ecology of Animal Societies, Max Planck Institute of Animal Behavior, Konstanz, Germany; Centre for the Advanced Study of Collective Behaviour, University of Konstanz, Konstanz, Germany; Department of Biology, University of Konstanz, Konstanz, Germany
| | - Giulia Gaggioni
- Institut des Sciences de l'Evolution de Montpellier (ISEM), UMR5554, University of Montpellier/CNRS/IRD/EPHE, Montpellier, France; Division of Psychiatry, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - Nadja Geiger
- Department of Biology, University of Konstanz, Konstanz, Germany; Zukunftskolleg, University of Konstanz, Konstanz, Germany
| | - Daniela C Rößler
- Department for the Ecology of Animal Societies, Max Planck Institute of Animal Behavior, Konstanz, Germany; Department of Biology, University of Konstanz, Konstanz, Germany; Zukunftskolleg, University of Konstanz, Konstanz, Germany
| | - Gabriella Gall
- Department for the Ecology of Animal Societies, Max Planck Institute of Animal Behavior, Konstanz, Germany; Centre for the Advanced Study of Collective Behaviour, University of Konstanz, Konstanz, Germany; Department of Biology, University of Konstanz, Konstanz, Germany; Zukunftskolleg, University of Konstanz, Konstanz, Germany
| | - Pei-Pei Yang
- Department for the Ecology of Animal Societies, Max Planck Institute of Animal Behavior, Konstanz, Germany; School of Resources and Environmental Engineering, Anhui University, Hefei, China; International Collaborative Research Center for Huangshan Biodiversity and Tibetan Macaque Behavioral Ecology, Hefei, China
| | - Barbara Fruth
- Department for the Ecology of Animal Societies, Max Planck Institute of Animal Behavior, Konstanz, Germany; Department of Migration, Max Planck Institute of Animal Behavior, Konstanz, Germany; Centre for Research and Conservation/KMDA, Antwerp, Belgium
| | - Roi Harel
- Department for the Ecology of Animal Societies, Max Planck Institute of Animal Behavior, Konstanz, Germany; Centre for the Advanced Study of Collective Behaviour, University of Konstanz, Konstanz, Germany; Department of Biology, University of Konstanz, Konstanz, Germany
| | - Margaret C Crofoot
- Department for the Ecology of Animal Societies, Max Planck Institute of Animal Behavior, Konstanz, Germany; Centre for the Advanced Study of Collective Behaviour, University of Konstanz, Konstanz, Germany; Department of Biology, University of Konstanz, Konstanz, Germany.
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3
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Burek DJ, Ibrahim KM, Hall AG, Sharma A, Musiek ES, Morón JA, Carlezon WA. Inflammatory pain in mice induces light cycle-dependent effects on sleep architecture. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.08.28.610124. [PMID: 39257818 PMCID: PMC11383991 DOI: 10.1101/2024.08.28.610124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/12/2024]
Abstract
As a syndrome, chronic pain comprises physical, emotional, and cognitive symptoms such as disability, negative affect, feelings of stress, and fatigue. A rodent model of long-term inflammatory pain, induced by complete Freund's adjuvant (CFA) injection, has previously been shown to cause anhedonia and dysregulated naturalistic behaviors, in a manner similar to animal models of stress. We examined whether this extended to alterations in circadian rhythms and sleep, such as those induced by chronic social defeat stress, using actigraphy and wireless EEG. CFA-induced inflammatory pain profoundly altered sleep architecture in male and female mice. Injection of the hind paw, whether with CFA or saline, reduced some measures of circadian rhythmicity such as variance, period, and amplitude. CFA increased sleep duration primarily in the dark phase, while sleep bout length was decreased in the light and increased in the dark phase. Additionally, CFA reduced wake bout length, especially during the dark phase. Increases in REM and SWS duration and bouts were most significant in the dark phase, regardless of whether CFA had been injected at its onset or 12 hours prior. Taken together, these results indicate that inflammatory pain acutely promotes but also fragments sleep.
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Henderson F, Dumas S, Gangarossa G, Bernard V, Pujol M, Poirel O, Pietrancosta N, El Mestikawy S, Daumas S, Fabre V. Regulation of stress-induced sleep perturbations by dorsal raphe VGLUT3 neurons in male mice. Cell Rep 2024; 43:114411. [PMID: 38944834 DOI: 10.1016/j.celrep.2024.114411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 05/07/2024] [Accepted: 06/12/2024] [Indexed: 07/02/2024] Open
Abstract
Exposure to stressors has profound effects on sleep that have been linked to serotonin (5-HT) neurons of the dorsal raphe nucleus (DR). However, the DR also comprises glutamatergic neurons expressing vesicular glutamate transporter type 3 (DRVGLUT3), leading us to examine their role. Cell-type-specific tracing revealed that DRVGLUT3 neurons project to brain areas regulating arousal and stress. We found that chemogenetic activation of DRVGLUT3 neurons mimics stress-induced sleep perturbations. Furthermore, deleting VGLUT3 in the DR attenuated stress-induced sleep perturbations, especially after social defeat stress. In the DR, VGLUT3 is found in subsets of 5-HT and non-5-HT neurons. We observed that both populations are activated by acute stress, including those projecting to the ventral tegmental area. However, deleting VGLUT3 in 5-HT neurons minimally affected sleep regulation. These findings suggest that VGLUT3 expression in the DR drives stress-induced sleep perturbations, possibly involving non-5-HT DRVGLUT3 neurons.
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Affiliation(s)
- Fiona Henderson
- Sorbonne Université, CNRS UMR 8246, INSERM U1130 - Neuroscience Paris Seine - Institut de Biologie Paris Seine (NPS - IBPS), 75005 Paris, France
| | | | - Giuseppe Gangarossa
- Université Paris Cité, CNRS, Unité de Biologie Fonctionnelle et Adaptative, 75013 Paris, France; Institut Universitaire de France (IUF), Paris, France
| | - Véronique Bernard
- Sorbonne Université, CNRS UMR 8246, INSERM U1130 - Neuroscience Paris Seine - Institut de Biologie Paris Seine (NPS - IBPS), 75005 Paris, France
| | - Marine Pujol
- Sorbonne Université, CNRS UMR 8246, INSERM U1130 - Neuroscience Paris Seine - Institut de Biologie Paris Seine (NPS - IBPS), 75005 Paris, France
| | - Odile Poirel
- Sorbonne Université, CNRS UMR 8246, INSERM U1130 - Neuroscience Paris Seine - Institut de Biologie Paris Seine (NPS - IBPS), 75005 Paris, France
| | - Nicolas Pietrancosta
- Sorbonne Université, CNRS UMR 8246, INSERM U1130 - Neuroscience Paris Seine - Institut de Biologie Paris Seine (NPS - IBPS), 75005 Paris, France; Sorbonne Université, CNRS UMR 7203, Laboratoire des BioMolécules, 75005 Paris, France
| | - Salah El Mestikawy
- Sorbonne Université, CNRS UMR 8246, INSERM U1130 - Neuroscience Paris Seine - Institut de Biologie Paris Seine (NPS - IBPS), 75005 Paris, France; Department of Psychiatry, Douglas Mental Health University Institute, McGill University, Montréal, QC H4H 1R3, Canada
| | - Stéphanie Daumas
- Sorbonne Université, CNRS UMR 8246, INSERM U1130 - Neuroscience Paris Seine - Institut de Biologie Paris Seine (NPS - IBPS), 75005 Paris, France.
| | - Véronique Fabre
- Sorbonne Université, CNRS UMR 8246, INSERM U1130 - Neuroscience Paris Seine - Institut de Biologie Paris Seine (NPS - IBPS), 75005 Paris, France.
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Mojahed N, Adjei M, Qasem E, Aaflaq S, Adu T, Jacobs JT, Richardson BD, Nordman JC. Acute social defeat during adolescence promotes long-lasting aggression through activation of the medial amygdala. Front Neurosci 2024; 18:1433993. [PMID: 39050664 PMCID: PMC11266103 DOI: 10.3389/fnins.2024.1433993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Accepted: 07/01/2024] [Indexed: 07/27/2024] Open
Abstract
Traumatic stress, particularly during critical developmental periods such as adolescence, has been strongly linked to an increased propensity and severity of aggression. Existing literature underscores that being a victim of abuse can exacerbate aggressive behaviors, with the amygdala playing a pivotal role in mediating these effects. Historically, animal models have demonstrated that traumatic stressors can increase attack behavior, implicating various amygdala nuclei. Building on this foundation, our previous work has highlighted how traumatic stress invokes long-lasting aggression via an excitatory pathway within the posterior ventral medial amygdala (MeApv). In the current study, we sought to further delineate this mechanism by examining the effects of acute social defeat during adolescence on aggressive behaviors and neural activation in mice. Using a common social defeat paradigm, we first established that acute social defeat during late adolescence indeed promotes long-lasting aggression, measured as attack behavior 7 days after the defeat session. Immunolabeling with c-Fos demonstrated that acute social defeat activates the MeApv and ventrolateral aspect of the ventromedial hypothalamus (VmHvl), consistent with our previous studies that used foot shock as an acute stressor. Finally, chemogenetically inhibiting excitatory MeApv neurons during social defeat significantly mitigated the aggression increase without affecting non-aggressive social behavior. These results strongly suggest that the MeApv plays a critical role in the onset of aggression following traumatic social experience, and offer the MeA as a potential target for therapeutic interventions.
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Affiliation(s)
- Nooshin Mojahed
- Department of Biomedical Sciences, Southern Illinois University School of Medicine, Carbondale, IL, United States
| | - Magdalene Adjei
- Department of Biomedical Sciences, Southern Illinois University School of Medicine, Carbondale, IL, United States
| | - Elana Qasem
- Department of Biomedical Sciences, Southern Illinois University School of Medicine, Carbondale, IL, United States
| | - Sophia Aaflaq
- Department of Biomedical Sciences, Southern Illinois University School of Medicine, Carbondale, IL, United States
| | - Temitope Adu
- Department of Pharmacology, Southern Illinois University School of Medicine, Springfield, IL, United States
| | - Jessica T. Jacobs
- Department of Biomedical Sciences, Southern Illinois University School of Medicine, Carbondale, IL, United States
| | - Ben D. Richardson
- Department of Pharmacology, Southern Illinois University School of Medicine, Springfield, IL, United States
| | - Jacob C. Nordman
- Department of Biomedical Sciences, Southern Illinois University School of Medicine, Carbondale, IL, United States
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Su CH, Ko LW, Jung TP, Onton J, Tzou SC, Juang JC, Hsu CY. Extracting Stress-Related EEG Patterns From Pre-Sleep EEG for Forecasting Slow-Wave Sleep Deficiency. IEEE Trans Neural Syst Rehabil Eng 2024; 32:1817-1827. [PMID: 38683718 DOI: 10.1109/tnsre.2024.3394471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Sleep is vital to our daily activity. Lack of proper sleep can impair functionality and overall health. While stress is known for its detrimental impact on sleep quality, the precise effect of pre-sleep stress on subsequent sleep structure remains unknown. This study introduced a novel approach to study the pre-sleep stress effect on sleep structure, specifically slow-wave sleep (SWS) deficiency. To achieve this, we selected forehead resting EEG immediately before and upon sleep onset to extract stress-related neurological markers through power spectra and entropy analysis. These markers include beta/delta correlation, alpha asymmetry, fuzzy entropy (FuzzEn) and spectral entropy (SpEn). Fifteen subjects were included in this study. Our results showed that subjects lacking SWS often exhibited signs of stress in EEG, such as an increased beta/delta correlation, higher alpha asymmetry, and increased FuzzEn in frontal EEG. Conversely, individuals with ample SWS displayed a weak beta/delta correlation and reduced FuzzEn. Finally, we employed several supervised learning models and found that the selected neurological markers can predict subsequent SWS deficiency. Our investigation demonstrated that the classifiers could effectively predict varying levels of slow-wave sleep (SWS) from pre-sleep EEG segments, achieving a mean balanced accuracy surpassing 0.75. The SMOTE-Tomek resampling method could improve the performance to 0.77. This study suggests that stress-related neurological markers derived from pre-sleep EEG can effectively predict SWS deficiency. Such information can be integrated with existing sleep-improving techniques to provide a personalized sleep forecasting and improvement solution.
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Miyanishi K, Hotta-Hirashima N, Miyoshi C, Hayakawa S, Kakizaki M, Kanno S, Ikkyu A, Funato H, Yanagisawa M. Microglia modulate sleep/wakefulness under baseline conditions and under acute social defeat stress in adult mice. Neurosci Res 2024; 202:8-19. [PMID: 38029860 DOI: 10.1016/j.neures.2023.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/19/2023] [Accepted: 11/20/2023] [Indexed: 12/01/2023]
Abstract
Although sleep is tightly regulated by multiple neuronal circuits in the brain, nonneuronal cells such as glial cells have been increasingly recognized as crucial sleep regulators. Recent studies have shown that microglia may act to maintain wakefulness. Here, we investigated the possible involvement of microglia in the regulation of sleep quantity and quality under baseline and stress conditions through electroencephalography (EEG)/electromyography (EMG) recordings, and by employing pharmacological methods to eliminate microglial cells in the adult mouse brain. We found that severe microglial depletion induced by the colony-stimulating factor 1 receptor (CSF1R) antagonist PLX5622 (PLX) reversibly decreased the total wake time and the wake episode duration and increased the EEG slow-wave power during wakefulness under baseline conditions. To examine the role of microglia in sleep/wake regulation under mental stress, we used the acute social defeat stress (ASDS) paradigm, an ethological model for psychosocial stress. Sleep analysis under ASDS revealed that microglial depletion exacerbated the stress-induced decrease in the total wake time and increase in anxiety-like behaviors in the open field test. These results demonstrate that microglia actively modulate sleep quantity and architecture under both baseline and stress conditions. Our findings suggest that microglia may potentially provide resilience against acute psychosocial stress by regulating restorative sleep.
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Affiliation(s)
- Kazuya Miyanishi
- International Institute for Integrative Sleep Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Noriko Hotta-Hirashima
- International Institute for Integrative Sleep Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Chika Miyoshi
- International Institute for Integrative Sleep Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Satsuki Hayakawa
- International Institute for Integrative Sleep Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Miyo Kakizaki
- International Institute for Integrative Sleep Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Satomi Kanno
- International Institute for Integrative Sleep Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Aya Ikkyu
- International Institute for Integrative Sleep Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Hiromasa Funato
- International Institute for Integrative Sleep Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; Department of Anatomy, Toho University Graduate School of Medicine, Tokyo 143-8540, Japan
| | - Masashi Yanagisawa
- International Institute for Integrative Sleep Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance, University of Tsukuba, Tsukuba 305-8577, Japan.
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Hein E, Halonen R, Wolbers T, Makkonen T, Kyllönen M, Kuula L, Kurki I, Stepnicka P, Pesonen AK. Does sleep promote adaptation to acute stress: An experimental study. Neurobiol Stress 2024; 29:100613. [PMID: 38371490 PMCID: PMC10869260 DOI: 10.1016/j.ynstr.2024.100613] [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: 10/04/2023] [Revised: 01/23/2024] [Accepted: 02/02/2024] [Indexed: 02/20/2024] Open
Abstract
Objectives Evidence of the impact of chronic stress on sleep is abundant, yet experimental sleep studies with a focus on acute stress are scarce and the results are mixed. Our study aimed to fill this gap by experimentally investigating the effects of pre-sleep social stress on sleep dynamics during the subsequent night, as measured with polysomnography (PSG). Methods Thirty-four healthy individuals (65% females, Mage = 25.76 years SD = 3.35) underwent a stress-inducing (SC) or neutral control condition (CC) in virtual reality (VR). We used overnight EEG measurements to analyze the basic sleep parameters and power spectral density (PSD) across the sleep cycles, and measured heart rate and its variability (HRV), skin electrodermal activity (EDA), and salivary cortisol to capture physiological arousal during the VR task and the pre-sleep period. Results Following acute stress (SC), the amount of slow-wave sleep (SWS) was higher and N2 sleep lower relative to CC, specifically in the first sleep cycle. In SC, PSD was elevated in the beta-low (16-24 Hz) and beta-high (25-35 Hz) frequency ranges during both stages N2 and SWS over the entire night. Conclusions Sleep promoted adaptation to acute social stress by a longer duration of SWS in the subsequent sleep period, especially in early sleep. A similar homeostatic effect towards restorative sleep is well-evidenced in animal model stress studies but has not been previously reported in experimental human studies. Whether the high-frequency PSD activity during stages N2 and SWS also serves in the resolution of transient stress, remains open.
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Affiliation(s)
- Emil Hein
- SleepWell Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Risto Halonen
- SleepWell Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Thomas Wolbers
- Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Magdeburg, Germany
- Neomento GmbH, Berlin, Germany
| | - Tommi Makkonen
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Markus Kyllönen
- SleepWell Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Liisa Kuula
- SleepWell Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Ilmari Kurki
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | | | - Anu-Katriina Pesonen
- SleepWell Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
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9
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Papageorgiou MP, Theodoridou D, Nussbaumer M, Syrrou M, Filiou MD. Deciphering the Metabolome under Stress: Insights from Rodent Models. Curr Neuropharmacol 2024; 22:884-903. [PMID: 37448366 PMCID: PMC10845087 DOI: 10.2174/1570159x21666230713094843] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 12/22/2022] [Accepted: 01/09/2023] [Indexed: 07/15/2023] Open
Abstract
Despite intensive research efforts to understand the molecular underpinnings of psychological stress and stress responses, the underlying molecular mechanisms remain largely elusive. Towards this direction, a plethora of stress rodent models have been established to investigate the effects of exposure to different stressors. To decipher affected molecular pathways in a holistic manner in these models, metabolomics approaches addressing altered, small molecule signatures upon stress exposure in a high-throughput, quantitative manner provide insightful information on stress-induced systemic changes in the brain. In this review, we discuss stress models in mice and rats, followed by mass spectrometry (MS) and nuclear magnetic resonance (NMR) metabolomics studies. We particularly focus on acute, chronic and early life stress paradigms, highlight how stress is assessed at the behavioral and molecular levels and focus on metabolomic outcomes in the brain and peripheral material such as plasma and serum. We then comment on common metabolomics patterns across different stress models and underline the need for unbiased -omics methodologies and follow-up studies of metabolomics outcomes to disentangle the complex pathobiology of stress and pertinent psychopathologies.
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Affiliation(s)
- Maria P. Papageorgiou
- Laboratory of Biochemistry, Department of Biological Applications and Technology, School of Health Sciences, University of Ioannina, Greece
- Biomedical Research Institute, Foundation for Research and Technology-Hellas (BRI-FORTH), Ioannina, Greece
| | - Daniela Theodoridou
- Laboratory of Biology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Greece
| | - Markus Nussbaumer
- Laboratory of Biochemistry, Department of Biological Applications and Technology, School of Health Sciences, University of Ioannina, Greece
- Biomedical Research Institute, Foundation for Research and Technology-Hellas (BRI-FORTH), Ioannina, Greece
| | - Maria Syrrou
- Laboratory of Biology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Greece
| | - Michaela D. Filiou
- Laboratory of Biochemistry, Department of Biological Applications and Technology, School of Health Sciences, University of Ioannina, Greece
- Biomedical Research Institute, Foundation for Research and Technology-Hellas (BRI-FORTH), Ioannina, Greece
- Ιnstitute of Biosciences, University of Ioannina, Greece
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10
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Yasugaki S, Okamura H, Kaneko A, Hayashi Y. Bidirectional Relationship Between Sleep and Depression. Neurosci Res 2023:S0168-0102(23)00087-1. [PMID: 37116584 DOI: 10.1016/j.neures.2023.04.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 03/01/2023] [Accepted: 04/20/2023] [Indexed: 04/30/2023]
Abstract
Patients with depression almost inevitably exhibit abnormalities in sleep, such as shortened latency to enter rapid eye movement (REM) sleep and decrease in electroencephalogram delta power during non-REM sleep. Insufficient sleep can be stressful, and the accumulation of stress leads to the deterioration of mental health and contributes to the development of psychiatric disorders. Thus, it is likely that depression and sleep are bidirectionally related, i.e. development of depression contributes to sleep disturbances and vice versa. However, the relation between depression and sleep seems complicated. For example, acute sleep deprivation can paradoxically improve depressive symptoms. Thus, it is difficult to conclude whether sleep has beneficial or harmful effects in patients with depression. How antidepressants affect sleep in patients with depression might provide clues to understanding the effects of sleep, but caution is required considering that antidepressants have diverse effects other than sleep. Recent animal studies support the bidirectional relation between depression and sleep, and animal models of depression are expected to be beneficial for the identification of neuronal circuits that connect stress, sleep, and depression. This review provides a comprehensive overview regarding the current knowledge of the relationship between depression and sleep.
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Affiliation(s)
- Shinnosuke Yasugaki
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan; Biomedical Sciences, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan; Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan; Japan Society for the Promotion of Science (JSPS), Tokyo 102-0083, Japan.
| | - Hibiki Okamura
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan; Japan Society for the Promotion of Science (JSPS), Tokyo 102-0083, Japan; Program in Humanics, School of Integrative and Global Majors, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan.
| | - Ami Kaneko
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan; Program in Humanics, School of Integrative and Global Majors, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan.
| | - Yu Hayashi
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan; Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan; Department of Human Health Sciences, Graduate School of Medicine, Kyoto University, Sakyo-ku, Kyoto 603-8363, Japan.
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11
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Foilb AR, Taylor-Yeremeeva EM, Fritsch EL, Ravichandran C, Lezak KR, Missig G, McCullough KM, Carlezon WA. Differential effects of the stress peptides PACAP and CRF on sleep architecture in mice. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.22.533872. [PMID: 36993188 PMCID: PMC10055371 DOI: 10.1101/2023.03.22.533872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Stress produces profound effects on behavior, including persistent alterations in sleep patterns. Here we examined the effects of two prototypical stress peptides, pituitary adenylate cyclase-activating polypeptide (PACAP) and corticotropin-releasing factor (CRF), on sleep architecture and other translationally-relevant endpoints. Male and female mice were implanted with subcutaneous transmitters enabling continuous measurement of electroencephalography (EEG) and electromyography (EMG), as well as body temperature and locomotor activity, without tethering that restricts free movement, body posture, or head orientation during sleep. At baseline, females spent more time awake (AW) and less time in slow wave sleep (SWS) than males. Mice then received intracerebral infusions of PACAP or CRF at doses producing equivalent increases in anxiety-like behavior. The effects of PACAP on sleep architecture were similar in both sexes and resembled those reported in male mice after chronic stress exposure. Compared to vehicle infusions, PACAP infusions decreased time in AW, increased time in SWS, and increased rapid eye movement sleep (REM) time and bouts on the day following treatment. In addition, PACAP effects on REM time remained detectable a week after treatment. PACAP infusions also reduced body temperature and locomotor activity. Under the same experimental conditions, CRF infusions had minimal effects on sleep architecture in either sex, causing only transient increases in SWS during the dark phase, with no effects on temperature or activity. These findings suggest that PACAP and CRF have fundamentally different effects on sleep-related metrics, and provide new insights into the mechanisms by which stress disrupts sleep.
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Affiliation(s)
- Allison R Foilb
- Basic Neuroscience Division, Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, USA
| | - Elisa M Taylor-Yeremeeva
- Basic Neuroscience Division, Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, USA
| | - Emma L Fritsch
- Basic Neuroscience Division, Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, USA
| | - Caitlin Ravichandran
- Basic Neuroscience Division, Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, USA
| | - Kimberly R Lezak
- Basic Neuroscience Division, Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, USA
| | - Galen Missig
- Basic Neuroscience Division, Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, USA
| | - Kenneth M McCullough
- Basic Neuroscience Division, Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, USA
| | - William A Carlezon
- Basic Neuroscience Division, Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, USA
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12
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Effects of intra-hippocampal corticosterone and sleep on consolidation of memories of aversive experience in rats. Neurobiol Learn Mem 2023; 198:107721. [PMID: 36610686 DOI: 10.1016/j.nlm.2023.107721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 12/06/2022] [Accepted: 01/02/2023] [Indexed: 01/06/2023]
Abstract
Formation and consolidation of memories for highly stressful (traumatic) events is a complex process that involves interplay between multiple memory systems and has implications for etiology and treatment of stress- and trauma-related disorders. Here we study effects of sleep/wake states and high intra-hippocampal corticosterone on consolidation of aversive contextual memories, as well as consolidation of association between auditory unpaired phasic background cues and fear response in rats. Animals were implanted with EEG and EMG electrodes for sleep assessment and cannulas for intra-hippocampal corticosterone application. They were familiarized to a "safe box" and then trained in a fear conditioning paradigm in a distinct "shock box" with a prominent unpaired phasic background auditory cue. Immediately after conditioning, animals received bilateral intra-hippocampal saline (1 μl) or corticosterone (10 ng in 1 μl) injection and were either allowed to sleep or were kept awake for a following two-hour consolidation period. Memory tests 24 h later revealed that the saline-injected animals that slept during consolidation had significantly stronger fear responses in the shock box compared to the safe box as well as increased fear response in response to the auditory cue. Lack of sleep during the consolidation period in saline injected animals led to generalization of the fear response to the safe context, while association between auditory cue and fear response was preserved. High intra-hippocampal corticosterone levels during memory consolidation led to generalization of fear response to the safe context, regardless of sleep/wake state, while enhancement of response to auditory cue was not observed. Our results show how manipulation of conditions during consolidation can lead to greatly variable memories for an aversive episode with distinct behavioral outcomes. Observed overgeneralization of fear to safe context and altered fear response to background phasic cue has implications for understanding etiology of pathological memory alternations in stress-related conditions e.g., in posttraumatic stress disorder in humans.
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13
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Fifel K, Yanagisawa M, Deboer T. Mechanisms of Sleep/Wake Regulation under Hypodopaminergic State: Insights from MitoPark Mouse Model of Parkinson's Disease. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2203170. [PMID: 36515271 PMCID: PMC9929135 DOI: 10.1002/advs.202203170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 11/16/2022] [Indexed: 06/17/2023]
Abstract
Sleep/wake alterations are predominant in neurological and neuropsychiatric disorders involving dopamine dysfunction. Unfortunately, specific, mechanisms-based therapies for these debilitating sleep problems are currently lacking. The pathophysiological mechanisms of sleep/wake alterations within a hypodopaminergic MitoPark mouse model of Parkinson's disease (PD) are investigated. MitoPark mice replicate most PD-related sleep alterations, including sleep fragmentation, hypersomnia, and daytime sleepiness. Surprisingly, these alterations are not accounted for by a dysfunction in the circadian or homeostatic regulatory processes of sleep, nor by acute masking effects of light or darkness. Rather, the sleep phenotype is linked with the impairment of instrumental arousal and sleep modulation by behavioral valence. These alterations correlate with changes in high-theta (8-11.5 Hz) electroencephalogram power density during motivationally-charged wakefulness. These results demonstrate that sleep/wake alterations induced by dopamine dysfunction are mediated by impaired modulation of sleep by motivational valence and provide translational insights into sleep problems associated with disorders linked to dopamine dysfunction.
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Affiliation(s)
- Karim Fifel
- International Institute for Integrative Sleep Medicine (WPI‐IIIS)University of Tsukuba1‐1‐1 TennodaiTsukubaIbaraki305–8575Japan
- Department of Cell and Chemical BiologyLaboratory of NeurophysiologyLeiden University Medical CenterP.O. Box 9600Leiden2300 RCThe Netherlands
| | - Masashi Yanagisawa
- International Institute for Integrative Sleep Medicine (WPI‐IIIS)University of Tsukuba1‐1‐1 TennodaiTsukubaIbaraki305–8575Japan
| | - Tom Deboer
- Department of Cell and Chemical BiologyLaboratory of NeurophysiologyLeiden University Medical CenterP.O. Box 9600Leiden2300 RCThe Netherlands
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14
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Xu YX, Liu GY, Ji ZZ, Li YY, Wang YL, Wu XY, Liu JL, Ma DX, Zhong MK, Gao CB, Xu Q. Restraint stress induced anxiety and sleep in mice. Front Psychiatry 2023; 14:1090420. [PMID: 37124267 PMCID: PMC10130584 DOI: 10.3389/fpsyt.2023.1090420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Accepted: 03/20/2023] [Indexed: 05/02/2023] Open
Abstract
In humans and animals, exposure to changes in internal or external environments causes acute stress, which changes sleep and enhances neurochemical, neuroendocrine, and sympathetic activities. Repeated stress responses play an essential role in the pathogenesis of psychiatric diseases and sleep disorders. However, the underlying mechanism of sleep changes and anxiety disorders in response to acute stress is not well established. In the current study, the effects of restraint stress (RS) on anxiety and sleep-wake cycles in mice were investigated. We found that after RS, the mice showed anxiety-like behavior after RS manipulation and increased the amounts of both non-rapid eye movement (NREM) and rapid eye movement (REM) sleep in the dark period. The increase in sleep time was mainly due to the increased number of episodes of NREM and REM sleep during the dark period. In addition, the mice showed an elevation of the EEG power spectrum of both NREM and REM sleep 2 h after RS manipulation. There was a significant reduction in the EEG power spectrum of both NREM and REM sleep during the darkperiod in the RS condition. The expression of the c-Fos protein was significantly increased in the parabrachial nucleus, bed nucleus of the stria terminalis, central amygdala, and paraventricular hypothalamus by RS manipulation. Altogether, the findings from the present study indicated that neural circuits from the parabrachial nucleus might regulate anxiety and sleep responses to acute stress, and suggest a potential therapeutic target for RS induced anxiety and sleep alterations.
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Affiliation(s)
- Yong-Xia Xu
- Department of Geriatric Endocrinology, Anhui Geriatric Institute, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Guo-Ying Liu
- Department of Physiology, School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui, China
| | - Zhang-Zhang Ji
- Department of Stomatology, The Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Yue-Yun Li
- Department of Otorhinolaryngology Head and Neck Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Yan-Li Wang
- Department of Geriatric Endocrinology, Anhui Geriatric Institute, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Xue-Yan Wu
- Department of Human Anatomy, School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui, China
| | - Jun-Lin Liu
- School of Mental Health and Psychological Sciences, Anhui Medical University, Hefei, Anhui, China
| | - Dan-Xia Ma
- School of Mental Health and Psychological Sciences, Anhui Medical University, Hefei, Anhui, China
| | - Ming-Kui Zhong
- Department of Physiology, School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui, China
- *Correspondence: Ming-Kui Zhong,
| | - Chao-Bing Gao
- Department of Otorhinolaryngology Head and Neck Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Chao-Bing Gao,
| | - Qi Xu
- Department of Physiology, School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui, China
- Qi Xu,
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15
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Antila H, Kwak I, Choi A, Pisciotti A, Covarrubias I, Baik J, Eisch A, Beier K, Thomas S, Weber F, Chung S. A noradrenergic-hypothalamic neural substrate for stress-induced sleep disturbances. Proc Natl Acad Sci U S A 2022; 119:e2123528119. [PMID: 36331996 PMCID: PMC9659376 DOI: 10.1073/pnas.2123528119] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 08/19/2022] [Indexed: 11/06/2022] Open
Abstract
In our daily life, we are exposed to uncontrollable and stressful events that disrupt our sleep. However, the underlying neural mechanisms deteriorating the quality of non-rapid eye movement sleep (NREMs) and REM sleep are largely unknown. Here, we show in mice that acute psychosocial stress disrupts sleep by increasing brief arousals (microarousals [MAs]), reducing sleep spindles, and impairing infraslow oscillations in the spindle band of the electroencephalogram during NREMs, while reducing REMs. This poor sleep quality was reflected in an increased number of calcium transients in the activity of noradrenergic (NE) neurons in the locus coeruleus (LC) during NREMs. Opto- and chemogenetic LC-NE activation in naïve mice is sufficient to change the sleep microarchitecture similar to stress. Conversely, chemogenetically inhibiting LC-NE neurons reduced MAs during NREMs and normalized their number after stress. Specifically inhibiting LC-NE neurons projecting to the preoptic area of the hypothalamus (POA) decreased MAs and enhanced spindles and REMs after stress. Optrode recordings revealed that stimulating LC-NE fibers in the POA indeed suppressed the spiking activity of POA neurons that are activated during sleep spindles and REMs and inactivated during MAs. Our findings reveal that changes in the dynamics of the stress-regulatory LC-NE neurons during sleep negatively affect sleep quality, partially through their interaction with the POA.
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Affiliation(s)
- Hanna Antila
- Department of Neuroscience, Chronobiology, and Sleep Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Iris Kwak
- Department of Neuroscience, Chronobiology, and Sleep Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Ashley Choi
- Department of Neuroscience, Chronobiology, and Sleep Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Alexa Pisciotti
- Department of Neuroscience, Chronobiology, and Sleep Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Ivan Covarrubias
- Department of Neuroscience, Chronobiology, and Sleep Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Justin Baik
- Department of Neuroscience, Chronobiology, and Sleep Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Amelia Eisch
- Department of Neuroscience, Chronobiology, and Sleep Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
- Department of Anesthesiology and Critical Care Medicine, The Children’s Hospital of Philadelphia Research Institute, Philadelphia, PA 19104
| | - Kevin Beier
- Department of Physiology and Biophysics, School of Medicine, University of California, Irvine, CA 92617
| | - Steven Thomas
- Department of Pharmacology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Franz Weber
- Department of Neuroscience, Chronobiology, and Sleep Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Shinjae Chung
- Department of Neuroscience, Chronobiology, and Sleep Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
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16
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Fifel K, El Farissi A, Cherasse Y, Yanagisawa M. Motivational and Valence-Related Modulation of Sleep/Wake Behavior are Mediated by Midbrain Dopamine and Uncoupled from the Homeostatic and Circadian Processes. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2200640. [PMID: 35794435 PMCID: PMC9403635 DOI: 10.1002/advs.202200640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 05/19/2022] [Indexed: 06/15/2023]
Abstract
Motivation and its hedonic valence are powerful modulators of sleep/wake behavior, yet its underlying mechanism is still poorly understood. Given the well-established role of midbrain dopamine (mDA) neurons in encoding motivation and emotional valence, here, neuronal mechanisms mediating sleep/wake regulation are systematically investigated by DA neurotransmission. It is discovered that mDA mediates the strong modulation of sleep/wake states by motivational valence. Surprisingly, this modulation can be uncoupled from the classically employed measures of circadian and homeostatic processes of sleep regulation. These results establish the experimental foundation for an additional new factor of sleep regulation. Furthermore, an electroencephalographic marker during wakefulness at the theta range is identified that can be used to reliably track valence-related modulation of sleep. Taken together, this study identifies mDA signaling as an important neural substrate mediating sleep modulation by motivational valence.
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Affiliation(s)
- Karim Fifel
- International Institute for Integrative Sleep Medicine (WPI‐IIIS)University of TsukubaTsukubaIbaraki305‐8577Japan
| | - Amina El Farissi
- International Institute for Integrative Sleep Medicine (WPI‐IIIS)University of TsukubaTsukubaIbaraki305‐8577Japan
| | - Yoan Cherasse
- International Institute for Integrative Sleep Medicine (WPI‐IIIS)University of TsukubaTsukubaIbaraki305‐8577Japan
| | - Masashi Yanagisawa
- International Institute for Integrative Sleep Medicine (WPI‐IIIS)University of TsukubaTsukubaIbaraki305‐8577Japan
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17
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Yu X, Zhao G, Wang D, Wang S, Li R, Li A, Wang H, Nollet M, Chun YY, Zhao T, Yustos R, Li H, Zhao J, Li J, Cai M, Vyssotski AL, Li Y, Dong H, Franks NP, Wisden W. A specific circuit in the midbrain detects stress and induces restorative sleep. Science 2022; 377:63-72. [PMID: 35771921 PMCID: PMC7612951 DOI: 10.1126/science.abn0853] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
In mice, social defeat stress (SDS), an ethological model for psychosocial stress, induces sleep. Such sleep could enable resilience, but how stress promotes sleep is unclear. Activity-dependent tagging revealed a subset of ventral tegmental area γ-aminobutyric acid (GABA)-somatostatin (VTAVgat-Sst) cells that sense stress and drive non-rapid eye movement (NREM) and REM sleep through the lateral hypothalamus and also inhibit corticotropin-releasing factor (CRF) release in the paraventricular hypothalamus. Transient stress enhances the activity of VTAVgat-Sst cells for several hours, allowing them to exert their sleep effects persistently. Lesioning of VTAVgat-Sst cells abolished SDS-induced sleep; without it, anxiety and corticosterone concentrations remained increased after stress. Thus, a specific circuit allows animals to restore mental and body functions by sleeping, potentially providing a refined route for treating anxiety disorders.
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Affiliation(s)
- Xiao Yu
- Department of Life Sciences, Imperial College London, London SW7 2AZ, UK
| | - Guangchao Zhao
- Department of Anesthesiology and Perioperative Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Dan Wang
- Department of Anesthesiology and Perioperative Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Sa Wang
- Department of Anesthesiology and Perioperative Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Rui Li
- Department of Anesthesiology and Perioperative Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Ao Li
- Department of Anesthesiology and Perioperative Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Huan Wang
- State Key Laboratory of Membrane Biology, Peking University School of Life Sciences, Beijing 100871, China
- PKU-IDG/McGovern Institute for Brain Research, Beijing 100871, China
| | - Mathieu Nollet
- Department of Life Sciences, Imperial College London, London SW7 2AZ, UK
- UK Dementia Research Institute, Imperial College London, London SW7 2AZ, UK
| | - You Young Chun
- Department of Life Sciences, Imperial College London, London SW7 2AZ, UK
| | - Tianyuan Zhao
- Department of Life Sciences, Imperial College London, London SW7 2AZ, UK
| | - Raquel Yustos
- Department of Life Sciences, Imperial College London, London SW7 2AZ, UK
| | - Huiming Li
- Department of Anesthesiology and Perioperative Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Jianshuai Zhao
- Department of Anesthesiology and Perioperative Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Jiannan Li
- Department of Anesthesiology and Perioperative Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Min Cai
- Department of Psychiatry, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Alexei L Vyssotski
- Institute of Neuroinformatics, University of Zürich/ETH Zürich, Zürich, Switzerland
| | - Yulong Li
- State Key Laboratory of Membrane Biology, Peking University School of Life Sciences, Beijing 100871, China
- PKU-IDG/McGovern Institute for Brain Research, Beijing 100871, China
| | - Hailong Dong
- Department of Anesthesiology and Perioperative Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Nicholas P Franks
- Department of Life Sciences, Imperial College London, London SW7 2AZ, UK
- UK Dementia Research Institute, Imperial College London, London SW7 2AZ, UK
| | - William Wisden
- Department of Life Sciences, Imperial College London, London SW7 2AZ, UK
- UK Dementia Research Institute, Imperial College London, London SW7 2AZ, UK
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18
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Smeltzer EA, Stead SM, Li MF, Samson D, Kumpan LT, Teichroeb JA. Social sleepers: The effects of social status on sleep in terrestrial mammals. Horm Behav 2022; 143:105181. [PMID: 35594742 DOI: 10.1016/j.yhbeh.2022.105181] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 04/12/2022] [Accepted: 04/22/2022] [Indexed: 11/18/2022]
Abstract
Social status among group-living mammals can impact access to resources, such as water, food, social support, and mating opportunities, and this differential access to resources can have fitness consequences. Here, we propose that an animal's social status impacts their access to sleep opportunities, as social status may predict when an animal sleeps, where they sleep, who they sleep with, and how well they sleep. Our review of terrestrial mammals examines how sleep architecture and intensity may be impacted by (1) sleeping conditions and (2) the social experience during wakefulness. Sleeping positions vary in thermoregulatory properties, protection from predators, and exposure to parasites. Thus, if dominant individuals have priority of access to sleeping positions, they may benefit from higher quality sleeping conditions and, in turn, better sleep. With respect to waking experiences, we discuss the impacts of stress on sleep, as it has been established that specific social statuses can be characterized by stress-related physiological profiles. While much research has focused on how dominance hierarchies impact access to resources like food and mating opportunities, differential access to sleep opportunities among mammals has been largely ignored despite its potential fitness consequences.
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Affiliation(s)
- E A Smeltzer
- Department of Anthropology, University of Toronto Scarborough, 1265 Military Trail, Scarborough, Ontario M1C 1A4, Canada
| | - S M Stead
- Department of Anthropology, University of Toronto Scarborough, 1265 Military Trail, Scarborough, Ontario M1C 1A4, Canada.
| | - M F Li
- Department of Anthropology, University of Toronto, 19 Russell St., Toronto, Ontario M5S 2S2, Canada
| | - D Samson
- Department of Anthropology, University of Toronto Mississauga, 3359 Mississauga Rd., Mississauga, Ontario L5L 1C6, Canada
| | - L T Kumpan
- Department of Anthropology, University of Toronto Scarborough, 1265 Military Trail, Scarborough, Ontario M1C 1A4, Canada
| | - J A Teichroeb
- Department of Anthropology, University of Toronto Scarborough, 1265 Military Trail, Scarborough, Ontario M1C 1A4, Canada
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19
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McCullough KM, Missig G, Robbie MA, Foilb AR, Wells AM, Hartmann J, Anderson KJ, Neve RL, Nestler EJ, Ressler KJ, Carlezon WA. Nucleus Accumbens Medium Spiny Neuron Subtypes Differentially Regulate Stress-Associated Alterations in Sleep Architecture. Biol Psychiatry 2021; 89:1138-1149. [PMID: 33715826 PMCID: PMC8178228 DOI: 10.1016/j.biopsych.2020.12.030] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 12/17/2020] [Accepted: 12/20/2020] [Indexed: 01/04/2023]
Abstract
BACKGROUND Stress is implicated in the pathophysiology of major depression and posttraumatic stress disorder. These conditions share core features, including motivational deficits, heighted anxiety, and sleep dysregulation. Chronic stress produces these same features in rodents, with some individuals being susceptible or resilient, as seen in humans. While stress-induced neuroadaptations within the nucleus accumbens are implicated in susceptibility-related dysregulation of motivational and emotional behaviors, their effects on sleep are unclear. METHODS We used chemogenetics (DREADDs [designer receptors exclusively activated by designer drugs]) to examine the effects of selective alterations in activity of nucleus accumbens medium spiny neurons expressing dopamine D1 receptors (D1-MSNs) or dopamine D2 receptors (D2-MSNs) on sleep-related end points. Mice were implanted with wireless transmitters enabling continuous collection of data to quantify vigilance states over a 20-day test period. Parallel cohorts were examined in behavioral tests assessing stress susceptibility. RESULTS D1- and D2-MSNs play dissociable roles in sleep regulation. Stimulation of inhibitory or excitatory DREADDs expressed in D1-MSNs exclusively affects rapid eye movement sleep, whereas targeting D2-MSNs affects slow wave sleep. The combined effects of D1-MSN inhibition and D2-MSN activation on sleep resemble those of chronic social defeat stress. Alterations in D1-MSN function also affect stress susceptibility in social behavior tests. Elevation of CREB (cAMP response element-binding protein) within D1-MSNs is sufficient to produce stress-like effects on rapid eye movement sleep. CONCLUSIONS In addition to regulation of motivational and emotional behaviors, the nucleus accumbens also influences sleep, an end point with high translational relevance. These findings provide a neural basis for comorbidity in key features of stress-related illness.
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Affiliation(s)
- Kenneth M. McCullough
- Basic Neuroscience Division, Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, USA
| | - Galen Missig
- Basic Neuroscience Division, Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, USA
| | - Mykel A. Robbie
- Basic Neuroscience Division, Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, USA
| | - Allison R. Foilb
- Basic Neuroscience Division, Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, USA
| | - Audrey M. Wells
- Basic Neuroscience Division, Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, USA
| | - Jakob Hartmann
- Basic Neuroscience Division, Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, USA
| | - Kasey J. Anderson
- Basic Neuroscience Division, Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, USA
| | - Rachael L. Neve
- Department of Neurology, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Eric J. Nestler
- Nash Family Department of Neuroscience, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai. New York, NY 10029, USA
| | - Kerry J. Ressler
- Basic Neuroscience Division, Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, USA
| | - William A. Carlezon
- Basic Neuroscience Division, Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, USA,Corresponding Author: William A. Carlezon, Jr., Ph.D., Department of Psychiatry, McLean Hospital, 115 Mill Street, Belmont, MA 02478, USA,
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20
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Radwan B, Jansen G, Chaudhury D. Abnormal Sleep Signals Vulnerability to Chronic Social Defeat Stress. Front Neurosci 2021; 14:610655. [PMID: 33510614 PMCID: PMC7835126 DOI: 10.3389/fnins.2020.610655] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Accepted: 11/23/2020] [Indexed: 12/20/2022] Open
Abstract
There is a tight association between mood and sleep as disrupted sleep is a core feature of many mood disorders. The paucity in available animal models for investigating the role of sleep in the etiopathogenesis of depression-like behaviors led us to investigate whether prior sleep disturbances can predict susceptibility to future stress. Hence, we assessed sleep before and after chronic social defeat (CSD) stress. The social behavior of the mice post stress was classified in two main phenotypes: mice susceptible to stress that displayed social avoidance and mice resilient to stress. Pre-CSD, mice susceptible to stress displayed increased fragmentation of Non-Rapid Eye Movement (NREM) sleep, due to increased switching between NREM and wake and shorter average duration of NREM bouts, relative to mice resilient to stress. Logistic regression analysis showed that the pre-CSD sleep features from both phenotypes were separable enough to allow prediction of susceptibility to stress with >80% accuracy. Post-CSD, susceptible mice maintained high NREM fragmentation while resilient mice exhibited high NREM fragmentation, only in the dark. Our findings emphasize the putative role of fragmented NREM sleep in signaling vulnerability to stress.
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Affiliation(s)
- Basma Radwan
- Department of Biology, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
| | - Gloria Jansen
- Department of Genetics, University of Cambridge, Cambridge, United Kingdom
| | - Dipesh Chaudhury
- Department of Biology, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
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21
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Stress-induced sleep-like inactivity modulates stress susceptibility in mice. Sci Rep 2020; 10:19800. [PMID: 33188274 PMCID: PMC7666172 DOI: 10.1038/s41598-020-76717-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 10/28/2020] [Indexed: 11/09/2022] Open
Abstract
Severe environmental and social stress induces dysregulation of sleep along with mood and cognitive disturbances. However, the role and mechanism of this sleep dysregulation remain elusive. Here we evaluated sleep-like inactivity measured by voluntary movements and its relationship to social behaviors in mice without or with social defeat stress as well as the stressed mice with subsequent sleep deprivation. Social defeat stress immediately induced sleep-like inactivity with decreased body temperature. In the social interaction test, the control mice showed high social interest and its correlation with social sniffing intensity, the latter of which indicates positive valence of social sniffing. After the stress, these social characteristics were maintained in stress-resilient mice, but disrupted in stress-susceptible mice, leading to social avoidance. Sleep deprivation after the stress decreased social sniffing intensity along with reduced social interest, but enhanced the exploratory activity with the positive valence of social sniffing. We also found by c-Fos immunohistochemistry that the stress activated sleep-related brain regions, the dorsomedial hypothalamus and ventrolateral periaqueductal gray. Collectively, these findings show that stress activates sleep-related brain regions and induces sleep-like inactivity, contributing to multiple roles of stress-induced sleep for social behaviors.
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22
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Otabi H, Okayama T, Toyoda A. Assessment of nest building and social interaction behavior in mice exposed to acute social defeat stress using a three-dimensional depth camera. Anim Sci J 2020; 91:e13447. [PMID: 32902039 DOI: 10.1111/asj.13447] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 06/24/2020] [Accepted: 07/15/2020] [Indexed: 01/05/2023]
Abstract
Nest building is an instinctive behavior toward protection from predators, body temperature regulation, and courtship. Previously, we discovered that acute and chronic social defeat stress suppresses the onset of nest-building behavior in male mice (C57BL/6J). Here, we analyzed nest building and other behavioral deficits induced by acute social defeat stress (ASDS). We utilized a customized cage and specifically developed observational programs for nest building, social avoidance, and other behaviors using an infrared depth camera to acquire three-dimensional (3D) data of animal behavior (Negura system). We determined the volume of nesting materials from these 3D depth images. Mice exposed to ASDS showed increased spontaneous activities, decreased rearing, and delayed nest building; however, nest-building activity was gradually recovered during the dark period of the 24 hr observation interval. At the endpoint following 24 hr, the ASDS and control groups showed no differences in nest volumes. Furthermore, we observed the time courses of both nest building and social avoidance behaviors and their relationship using the Negura system. Our data demonstrated a weak positive correlation between nest-building delay and social avoidance in ASDS mice. The Negura system can observe various behaviors that reflect the effects of social defeat stress.
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Affiliation(s)
- Hikari Otabi
- College of Agriculture, Ibaraki University, Ami, Japan.,United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Fuchu, Japan
| | - Tsuyoshi Okayama
- College of Agriculture, Ibaraki University, Ami, Japan.,United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Fuchu, Japan.,Ibaraki University Cooperation between Agriculture and Medical Science (IUCAM), Ami, Japan
| | - Atsushi Toyoda
- College of Agriculture, Ibaraki University, Ami, Japan.,United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Fuchu, Japan.,Ibaraki University Cooperation between Agriculture and Medical Science (IUCAM), Ami, Japan
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23
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Bykowski M, Mazur R, Buszewicz D, Szach J, Mostowska A, Kowalewska Ł. Spatial Nano-Morphology of the Prolamellar Body in Etiolated Arabidopsis thaliana Plants With Disturbed Pigment and Polyprenol Composition. Front Cell Dev Biol 2020; 8:586628. [PMID: 33117813 PMCID: PMC7578251 DOI: 10.3389/fcell.2020.586628] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 09/14/2020] [Indexed: 11/13/2022] Open
Abstract
The prolamellar body (PLB) is a periodic bicontinuous membrane structure based on tubular tetrahedral units. PLBs are present in plant etioplasts and, upon illumination, directly transform into the lamellar thylakoid networks within chloroplasts. Efficient tubular-lamellar rearrangement and later formation of the photosynthetically active thylakoid membranes are crucial steps in the development of plant autotrophy. PLB membranes are mainly composed of galactolipids, carotenoids, and protochlorophyllide (Pchlide), the chlorophyll precursor, bound in a complex with NADPH and Pchlide oxidoreductase. Although the PLB structure has been studied for over 50 years, the direct role of particular membrane components in the formation of the PLB paracrystalline network remains elusive. Moreover, despite the numerous literature data regarding the PLB geometry, their reliable comparative analysis is complicated due to variable experimental conditions. Therefore, we performed comprehensive ultrastructural and low-temperature fluorescence analysis of wild type Arabidopsis thaliana (Arabidopsis) seedlings grown in different conditions typical for studies on etiolated seedlings. We established that the addition of sucrose to the growing media significantly affected the size and compactness of the PLB. The etiolation period was also an important factor influencing the PLB structural parameters and the ratio of free to complex-bound Pchlide. Thus, a reliable PLB structural and spectral analysis requires particular attention to the applied experimental conditions. We investigated the influence of the pigment and polyprenol components of the etioplast membranes on the formation of the PLB spatial structure. The PLB 3D structure in several Arabidopsis mutants (ccr1-1, lut5-1, szl1-1npq1-2, aba1-6, pif1, cpt7) with disturbed levels of particular pigments and polyprenols using electron tomography technique was studied. We found that the PLB nano-morphology was mainly affected in the pif1 and aba1-6 mutants. An increased level of Pchlide (pif1) resulted in the substantial shift of the structural balance between outer and inner PLB water channels and overall PLB compactness compared to wild type plants. The decrease in the relative content of β-branch xanthophylls in aba1-6 plants was manifested by local disturbances in the paracrystalline structure of the PLB network. Therefore, proper levels of particular etioplast pigments are essential for the formation of stable and regular PLB structure.
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Affiliation(s)
- Michał Bykowski
- Department of Plant Anatomy and Cytology, Institute of Plant Experimental Biology and Biotechnology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Radosław Mazur
- Department of Metabolic Regulation, Institute of Biochemistry, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Daniel Buszewicz
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland
| | - Joanna Szach
- Department of Plant Anatomy and Cytology, Institute of Plant Experimental Biology and Biotechnology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Agnieszka Mostowska
- Department of Plant Anatomy and Cytology, Institute of Plant Experimental Biology and Biotechnology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Łucja Kowalewska
- Department of Plant Anatomy and Cytology, Institute of Plant Experimental Biology and Biotechnology, Faculty of Biology, University of Warsaw, Warsaw, Poland
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24
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Lou T, Ma J, Wang Z, Terakoshi Y, Lee CY, Asher G, Cao L, Chen Z, Sakurai K, Liu Q. Hyper-Activation of mPFC Underlies Specific Traumatic Stress-Induced Sleep-Wake EEG Disturbances. Front Neurosci 2020; 14:883. [PMID: 32973436 PMCID: PMC7461881 DOI: 10.3389/fnins.2020.00883] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Accepted: 07/28/2020] [Indexed: 11/28/2022] Open
Abstract
Sleep disturbances have been recognized as a core symptom of post-traumatic stress disorders (PTSD). However, the neural basis of PTSD-related sleep disturbances remains unclear. It has been challenging to establish the causality link between a specific brain region and traumatic stress-induced sleep abnormalities. Here, we found that single prolonged stress (SPS) could induce acute changes in sleep/wake duration as well as short- and long-term electroencephalogram (EEG) alterations in the isogenic mouse model. Moreover, the medial prefrontal cortex (mPFC) showed persistent high number of c-fos expressing neurons, of which more than 95% are excitatory neurons, during and immediately after SPS. Chemogenetic inhibition of the prelimbic region of mPFC during SPS could specifically reverse the SPS-induced acute suppression of delta power (1–4 Hz EEG) of non-rapid-eye-movement sleep (NREMS) as well as most of long-term EEG abnormalities. These findings suggest a causality link between hyper-activation of mPFC neurons and traumatic stress-induced specific sleep–wake EEG disturbances.
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Affiliation(s)
- Tingting Lou
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Japan
| | - Jing Ma
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Japan.,HIT Center for Life Sciences (HCLS), School of Life Sciences and Technology, Harbin Institute of Technology, Harbin, China
| | - Zhiqiang Wang
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Japan.,HIT Center for Life Sciences (HCLS), School of Life Sciences and Technology, Harbin Institute of Technology, Harbin, China
| | - Yuka Terakoshi
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Japan
| | - Chia-Ying Lee
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Japan
| | - Greg Asher
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Japan
| | - Liqin Cao
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Japan
| | - Zhiyu Chen
- National Institute of Biological Sciences (NIBS), Beijing, China.,Tsinghua Institute of Multidisciplinary Biomedical Research (TIMBR), Tsinghua University, Beijing, China
| | - Katsuyasu Sakurai
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Japan
| | - Qinghua Liu
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Japan.,National Institute of Biological Sciences (NIBS), Beijing, China.,Tsinghua Institute of Multidisciplinary Biomedical Research (TIMBR), Tsinghua University, Beijing, China
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25
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Abstract
In homeothermic animals sleep preparatory behaviours often promote thermal efficiency, including warmth-seeking, adopting particular postures (curling up, head tucking) and nest building, all promoting warmer skin microclimates. Skin warmth induces NREM sleep and body cooling via circuitry that connects skin sensation to the preoptic hypothalamus. Coupling sleep induction and lower body temperature could serve to minimise energy expenditure or allow energy reallocation. Cooling during NREM sleep may also induce transcriptional changes in genes whose products facilitate housekeeping functions or measure the time spent sleeping.
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Affiliation(s)
- Edward C Harding
- Department of Life Sciences, Imperial College London, South Kensington, SW7 2AZ, UK
| | - Nicholas P Franks
- Department of Life Sciences, Imperial College London, South Kensington, SW7 2AZ, UK.,Centre for Neurotechnology, Imperial College London, SW7 2AZ, UK.,UK Dementia Research Institute at Imperial College London, UK
| | - William Wisden
- Department of Life Sciences, Imperial College London, South Kensington, SW7 2AZ, UK.,Centre for Neurotechnology, Imperial College London, SW7 2AZ, UK.,UK Dementia Research Institute at Imperial College London, UK
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26
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Feng X, Zhao HY, Shao YJ, Lou HF, Zhu LY, Duan S, Yu YQ. Anxiolytic Effect of Increased NREM Sleep after Acute Social Defeat Stress in Mice. Neurosci Bull 2020; 36:1137-1146. [PMID: 32096115 PMCID: PMC7532235 DOI: 10.1007/s12264-020-00473-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 01/15/2020] [Indexed: 12/24/2022] Open
Abstract
Social defeat stress (SDS) plays a major role in the pathogenesis of psychiatric disorders like anxiety and depression. Sleep is generally considered to involve recovery of the brain from prior experience during wakefulness and is altered after acute SDS. However, the effect of acute SDS on sleep/wake behavior in mice varies between studies. In addition, whether sleep changes in response to stress contribute to anxiety is not well established. Here, we first investigated the effects of acute SDS on sleep/wake states in the active period in mice. Our results showed that total sleep time (time in rapid eye-movement [REM] and non-REM [NREM] sleep) increased in the active period after acute SDS. NREM sleep increased mainly during the first 3 h after SDS, while REM sleep increased at a later time. Then, we demonstrated that the increased NREM sleep had an anxiolytic benefit in acute SDS. Mice deprived of sleep for 1 h or 3 h after acute SDS remained in a highly anxious state, while in mice with ad libitum sleep the anxiety rapidly faded away. Altogether, our findings suggest an anxiolytic effect of NREM sleep, and indicate a potential therapeutic strategy for anxiety.
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Affiliation(s)
- Xiang Feng
- Department of Neurobiology and Department of Neurology of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Hui-Ying Zhao
- Department of Neurobiology and Department of Neurology of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Yu-Jin Shao
- Department of Neurobiology and Department of Neurology of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Hui-Fang Lou
- Department of Neurobiology and Department of Neurology of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Li-Ya Zhu
- Department of Neurobiology and Department of Neurology of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Shumin Duan
- Department of Neurobiology and Department of Neurology of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China.
| | - Yan-Qin Yu
- Department of Neurobiology and Department of Neurology of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China.
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27
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Mazur R, Mostowska A, Szach J, Gieczewska K, Wójtowicz J, Bednarska K, Garstka M, Kowalewska Ł. Galactolipid deficiency disturbs spatial arrangement of the thylakoid network in Arabidopsis thaliana plants. JOURNAL OF EXPERIMENTAL BOTANY 2019; 70:4689-4704. [PMID: 31087066 DOI: 10.1093/jxb/erz219] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 04/30/2019] [Indexed: 06/09/2023]
Abstract
The chloroplast thylakoid network is a dynamic structure which, through possible rearrangements, plays a crucial role in regulation of photosynthesis. Although the importance of the main components of the thylakoid membrane matrix, galactolipids, in the formation of the network of internal plastid membrane was found before, the structural role of monogalactosyldiacylglycerol (MGDG) and digalactosylidacylglycerol (DGDG) is still largely unknown. We elucidated detailed structural modifications of the thylakoid membrane system in Arabidopsis thaliana MGDG- and DGDG-deficient mutants. An altered MGDG/DGDG ratio was structurally reflected by formation of smaller grana, local changes in grana stacking repeat distance, and significant changes in the spatial organization of the thylakoid network compared with wild-type plants. The decrease of the MGDG level impaired the formation of the typical helical grana structure and resulted in a 'helical-dichotomic' arrangement. DGDG deficiency did not affect spatial grana organization but changed the shape of the thylakoid membrane network in situ from lens like into a flattened shape. Such structural disturbances were accompanied by altered composition of carotenoid and chlorophyll-protein complexes, which eventually led to the decreased photosynthetic efficiency of MGDG- and DGDG-deficient plants.
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Affiliation(s)
- Radosław Mazur
- Department of Metabolic Regulation, Faculty of Biology, University of Warsaw, Miecznikowa, Warsaw, Poland
| | - Agnieszka Mostowska
- Department of Plant Anatomy and Cytology, Faculty of Biology, University of Warsaw, Miecznikowa, Warsaw, Poland
| | - Joanna Szach
- Department of Plant Anatomy and Cytology, Faculty of Biology, University of Warsaw, Miecznikowa, Warsaw, Poland
| | - Katarzyna Gieczewska
- Department of Plant Anatomy and Cytology, Faculty of Biology, University of Warsaw, Miecznikowa, Warsaw, Poland
| | - Joanna Wójtowicz
- Department of Plant Anatomy and Cytology, Faculty of Biology, University of Warsaw, Miecznikowa, Warsaw, Poland
| | - Katarzyna Bednarska
- Department of Plant Anatomy and Cytology, Faculty of Biology, University of Warsaw, Miecznikowa, Warsaw, Poland
| | - Maciej Garstka
- Department of Metabolic Regulation, Faculty of Biology, University of Warsaw, Miecznikowa, Warsaw, Poland
| | - Łucja Kowalewska
- Department of Plant Anatomy and Cytology, Faculty of Biology, University of Warsaw, Miecznikowa, Warsaw, Poland
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28
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Beckwith EJ, French AS. Sleep in Drosophila and Its Context. Front Physiol 2019; 10:1167. [PMID: 31572216 PMCID: PMC6749028 DOI: 10.3389/fphys.2019.01167] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 08/29/2019] [Indexed: 12/17/2022] Open
Abstract
A prominent idea emerging from the study of sleep is that this key behavioural state is regulated in a complex fashion by ecologically and physiologically relevant environmental factors. This concept implies that sleep, as a behaviour, is plastic and can be regulated by external agents and changes in internal state. Drosophila melanogaster constitutes a resourceful model system to study behaviour. In the year 2000, the utility of the fly to study sleep was realised, and has since extensively contributed to this exciting field. At the centre of this review, we will discuss studies showing that temperature, food availability/quality, and interactions with conspecifics can regulate sleep. Indeed the relationship can be reciprocal and sleep perturbation can also affect feeding and social interaction. In particular, different environmental temperatures as well as gradual changes in temperature regulate when, and how much flies sleep. Moreover, the satiation/starvation status of an individual dictates the balance between sleep and foraging. Nutritional composition of diet also has a direct impact on sleep amount and its fragmentation. Likewise, aggression between males, courtship, sexual arousal, mating, and interactions within large groups of animals has an acute and long-lasting effect on sleep amount and quality. Importantly, the genes and neuronal circuits that relay information about the external environment and internal state to sleep centres are starting to be elucidated in the fly and are the focus of this review. In conclusion, sleep, as with most behaviours, needs the full commitment of the individual, preventing participation in other vital activities. A vast array of behaviours that are modulated by external and internal factors compete with the need to sleep and thus have a significant role in regulating it.
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Affiliation(s)
- Esteban J Beckwith
- Department of Life Sciences, Imperial College London, London, United Kingdom
| | - Alice S French
- Department of Life Sciences, Imperial College London, London, United Kingdom
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