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Zhou Z, Zhang R, Zhang Y, Xu Y, Wang R, Chen S, Lv Y, Chen Y, Ren Y, Luo P, Cheng Q, Xu H, Weng S, Zuo A, Ba Y, Liu S, Han X, Liu Z. Circadian disruption in cancer hallmarks: Novel insight into the molecular mechanisms of tumorigenesis and cancer treatment. Cancer Lett 2024; 604:217273. [PMID: 39306230 DOI: 10.1016/j.canlet.2024.217273] [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: 06/27/2024] [Revised: 09/17/2024] [Accepted: 09/18/2024] [Indexed: 09/27/2024]
Abstract
Circadian rhythms are 24-h rhythms governing temporal organization of behavior and physiology generated by molecular clocks composed of autoregulatory transcription-translation feedback loops (TTFLs). Disruption of circadian rhythms leads to a spectrum of pathologies, including cancer by triggering or being involved in different hallmarks. Clock control of phenotypic plasticity involved in tumorigenesis operates in aberrant dedifferentiating to progenitor-like cell states, generation of cancer stem cells (CSCs) and epithelial-to-mesenchymal transition (EMT) events. Circadian rhythms might act as candidates for regulatory mechanisms of cellular senescent and functional determinants of senescence-associated secretory phenotype (SASP). Reciprocal control between clock and epigenetics sheds light on post-transcriptional regulation of circadian rhythms and opens avenues for novel anti-cancer strategies. Additionally, disrupting circadian rhythms influences microbiota communities that could be associated with altered homeostasis contributing to cancer development. Herein, we summarize recent advances in support of the nexus between disruptions of circadian rhythms and cancer hallmarks of new dimensions, thus providing novel perspectives on potentially effective treatment approaches for cancer management.
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Affiliation(s)
- Zhaokai Zhou
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China; Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Ruiqi Zhang
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Yuyuan Zhang
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Yudi Xu
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Ruizhi Wang
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Shuang Chen
- Center of Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Yingying Lv
- Department of Pediatrics, The First Affliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China; Department of Pediatrics, The Third Affliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Yifeng Chen
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Yuqing Ren
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Peng Luo
- The Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Quan Cheng
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hui Xu
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Siyuan Weng
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Anning Zuo
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Yuhao Ba
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Shutong Liu
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Xinwei Han
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China; Interventional Institute of Zhengzhou University, Zhengzhou, Henan, 450052, China; Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou, Henan, 450052, China.
| | - Zaoqu Liu
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China; Interventional Institute of Zhengzhou University, Zhengzhou, Henan, 450052, China; Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou, Henan, 450052, China; Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China.
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Popescu A, Ottaway C, Ford K, Patterson TW, Ingiosi A, Medina E, Hicks SC, Singletary K, Peixoto L. Transcriptional dynamics of sleep deprivation and subsequent recovery sleep in the male mouse cortex. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.08.20.607983. [PMID: 39229182 PMCID: PMC11370348 DOI: 10.1101/2024.08.20.607983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 09/05/2024]
Abstract
Sleep is an essential, tightly regulated biological function. Sleep is also a homeostatic process, with the need to sleep increasing as a function of being awake. Acute sleep deprivation (SD) increases sleep need, and subsequent recovery sleep (RS) discharges it. SD is known to alter brain gene expression in rodents, but it remains unclear which changes are linked to sleep homeostasis, SD-related impairments, or non-sleep-specific effects. To investigate this question, we analyzed RNA-seq data from adult wild-type male mice subjected to 3 and 5-6 hours of SD and 2 and 6 hours of RS after SD. We hypothesized molecular changes associated with sleep homeostasis mirror sleep pressure dynamics as defined by brain electrical activity, peaking at 5-6 hours of SD, and are no longer differentially expressed after 2 hours of RS. We report 5-6 hours of SD produces the largest effect on gene expression, affecting approximately half of the cortical transcriptome, with most differentially expressed genes (DEGs) downregulated. The majority of DEGs normalize after 2 hours of RS and are involved in redox metabolism, chromatin regulation, and DNA damage/repair. Additionally, RS affects gene expression related to mitochondrial metabolism and Wnt-signaling, potentially contributing to its restorative effects. DEGs associated with cholesterol metabolism and stress response do not normalize within 6 hours and may be non-sleep-specific. Finally, DEGs involved in insulin signaling, MAPK signaling, and RNA-binding may mediate the impairing effects of SD. Overall, our results offer insight into the molecular mechanisms underlying sleep homeostasis and the broader effects of SD.
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Affiliation(s)
- Alexander Popescu
- Department of Translational Medicine and Physiology, Sleep and Performance Research Center. Elson S. Floyd College of Medicine. Washington State University, Spokane, WA, USA
| | - Caitlin Ottaway
- Department of Translational Medicine and Physiology, Sleep and Performance Research Center. Elson S. Floyd College of Medicine. Washington State University, Spokane, WA, USA
- Department of Integrative Physiology and Neuroscience, Washington State University, Pullman, WA, USA
| | - Kaitlyn Ford
- Department of Translational Medicine and Physiology, Sleep and Performance Research Center. Elson S. Floyd College of Medicine. Washington State University, Spokane, WA, USA
| | - Taylor Wintler Patterson
- Department of Translational Medicine and Physiology, Sleep and Performance Research Center. Elson S. Floyd College of Medicine. Washington State University, Spokane, WA, USA
| | - Ashley Ingiosi
- Department of Translational Medicine and Physiology, Sleep and Performance Research Center. Elson S. Floyd College of Medicine. Washington State University, Spokane, WA, USA
| | - Elizabeth Medina
- Department of Translational Medicine and Physiology, Sleep and Performance Research Center. Elson S. Floyd College of Medicine. Washington State University, Spokane, WA, USA
- Department of Integrative Physiology and Neuroscience, Washington State University, Pullman, WA, USA
| | - Stephanie C. Hicks
- Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Department of Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, MD, USA
- Center for Computational Biology, Johns Hopkins University, Baltimore, MD, USA
- Malone Center for Engineering in Healthcare, Johns Hopkins University, Baltimore, MD, USA
| | - Kristan Singletary
- Department of Translational Medicine and Physiology, Sleep and Performance Research Center. Elson S. Floyd College of Medicine. Washington State University, Spokane, WA, USA
| | - Lucia Peixoto
- Department of Translational Medicine and Physiology, Sleep and Performance Research Center. Elson S. Floyd College of Medicine. Washington State University, Spokane, WA, USA
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Richter E, Patel P, Babu JR, Wang X, Geetha T. The Importance of Sleep in Overcoming Childhood Obesity and Reshaping Epigenetics. Biomedicines 2024; 12:1334. [PMID: 38927541 PMCID: PMC11201669 DOI: 10.3390/biomedicines12061334] [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: 05/14/2024] [Revised: 06/10/2024] [Accepted: 06/12/2024] [Indexed: 06/28/2024] Open
Abstract
The development of childhood obesity is a complex process influenced by a combination of genetic predisposition and environmental factors, such as sleep, diet, physical activity, and socioeconomic status. Long-term solutions for decreasing the risk of childhood obesity remain elusive, despite significant advancements in promoting health and well-being in school and at home. Challenges persist in areas such as adherence to interventions, addressing underlying social determinants, and individual differences in response to treatment. Over the last decade, there has been significant progress in epigenetics, along with increased curiosity in gaining insights into how sleep and lifestyle decisions impact an individual's health. Epigenetic modifications affect the expression of genes without causing changes to the fundamental DNA sequence. In recent years, numerous research studies have explored the correlation between sleep and the epigenome, giving a better understanding of DNA methylation, histone modification, and non-coding RNAs. Although significant findings have been made about the influence of sleep on epigenetics, a notable gap exists in the literature concerning sleep-related genes specifically associated with childhood obesity. Consequently, it is crucial to delve deeper into this area to enhance our understanding. Therefore, this review primarily focuses on the connection between sleep patterns and epigenetic modifications in genes related to childhood obesity. Exploring the interplay between sleep, epigenetics, and childhood obesity can potentially contribute to improved overall health outcomes. This comprehensive review encompasses studies focusing on sleep-related genes linked to obesity.
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Affiliation(s)
- Erika Richter
- Department of Nutritional Sciences, Auburn University, Auburn, AL 36849, USA
| | - Priyadarshni Patel
- Department of Nutritional Sciences, Auburn University, Auburn, AL 36849, USA
| | - Jeganathan Ramesh Babu
- Department of Nutritional Sciences, Auburn University, Auburn, AL 36849, USA
- Boshell Metabolic Diseases and Diabetes Program, Auburn University, Auburn, AL 36849, USA
- Alabama Agricultural Experiment Station, Auburn University, Auburn, AL 36849, USA
| | - Xu Wang
- Alabama Agricultural Experiment Station, Auburn University, Auburn, AL 36849, USA
- Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL 36849, USA
- HudsonAlpha Institute for Biotechnology, Huntsville, AL 35806, USA
| | - Thangiah Geetha
- Department of Nutritional Sciences, Auburn University, Auburn, AL 36849, USA
- Boshell Metabolic Diseases and Diabetes Program, Auburn University, Auburn, AL 36849, USA
- Alabama Agricultural Experiment Station, Auburn University, Auburn, AL 36849, USA
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Regniez M, Dufort-Gervais J, Provost C, Mongrain V, Martinez M. Characterization of Sleep, Emotional, and Cognitive Functions in a New Rat Model of Concomitant Spinal Cord and Traumatic Brain Injuries. J Neurotrauma 2024; 41:1044-1059. [PMID: 37885242 DOI: 10.1089/neu.2023.0387] [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] [Indexed: 10/28/2023] Open
Abstract
Traumatic injuries to the spinal cord or the brain have serious medical consequences and lead to long-term disability. The epidemiology, medical complications, and prognosis of isolated spinal cord injury (SCI) and traumatic brain injury (TBI) have been well described. However, there are limited data on patients suffering from concurrent SCI and TBI, even if a large proportion of SCI patients have concomitant TBI. The complications associated with this "dual-diagnosis" such as cognitive or behavioral dysfunction are well known in the rehabilitation setting, but evidence-based and standardized approaches for diagnosis and treatment are lacking. Our goal was to develop and characterize a pre-clinical animal model of concurrent SCI and TBI to help identifying "dual-diagnosis" tools. Female rats received a unilateral contusive SCI at the thoracic level alone (SCI group) or combined with a TBI centered on the contralateral sensorimotor cortex (SCI-TBI group). We first validated that the SCI extent was comparable between SCI-TBI and SCI groups, and that hindlimb function was impaired. We characterized various neurological outcomes, including locomotion, sleep architecture, brain activity during sleep, depressive- and anxiety-like behaviors, and working memory. We report that SCI-TBI and SCI groups show similar impairments in global locomotor function. While wake/sleep amount and distribution and anxiety- and depression-like symptoms were not affected in SCI-TBI and SCI groups in comparison to the control group (laminectomy and craniotomy only), working memory was impaired only in SCI-TBI rats. This pre-clinical model of concomitant SCI and TBI, including more severe variations of it, shows a translational value for the identification of biomarkers to refine the "dual-diagnosis" of neurotrauma in humans.
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Affiliation(s)
- Morgane Regniez
- Department of Neuroscience, Université de Montreal, Montréal, Québec, Canada
- Recherche CIUSSS-NIM, Montréal, Québec, Canada
| | | | | | - Valérie Mongrain
- Department of Neuroscience, Université de Montreal, Montréal, Québec, Canada
- Recherche CIUSSS-NIM, Montréal, Québec, Canada
- Research Center of the CHUM, Montréal, Québec, Canada
| | - Marina Martinez
- Department of Neuroscience, Université de Montreal, Montréal, Québec, Canada
- Recherche CIUSSS-NIM, Montréal, Québec, Canada
- Groupe de recherche sur la Signalisation Neurale et la Circuiterie, Université de Montreal, Montréal, Québec, Canada
- Centre interdisciplinaire de recherche sur le cerveau et l'apprentissage, Université de Montreal, Montréal, Québec, Canada
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5
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Leduc T, El Alami H, Bougadir K, Bélanger-Nelson E, Mongrain V. Neuroligin-2 shapes individual slow waves during slow-wave sleep and the response to sleep deprivation in mice. Mol Autism 2024; 15:13. [PMID: 38570872 PMCID: PMC10993465 DOI: 10.1186/s13229-024-00594-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 03/18/2024] [Indexed: 04/05/2024] Open
Abstract
BACKGROUND Sleep disturbances are a common comorbidity to most neurodevelopmental disorders and tend to worsen disease symptomatology. It is thus crucial to understand mechanisms underlying sleep disturbances to improve patients' quality of life. Neuroligin-2 (NLGN2) is a synaptic adhesion protein regulating GABAergic transmission. It has been linked to autism spectrum disorders and schizophrenia in humans, and deregulations of its expression were shown to cause epileptic-like hypersynchronized cerebral activity in rodents. Importantly, the absence of Nlgn2 (knockout: KO) was previously shown to alter sleep-wake duration and quality in mice, notably increasing slow-wave sleep (SWS) delta activity (1-4 Hz) and altering its 24-h dynamics. This type of brain oscillation is involved in memory consolidation, and is also a marker of homeostatic sleep pressure. Sleep deprivation (SD) is notably known to impair cognition and the physiological response to sleep loss involves GABAergic transmission. METHODS Using electrocorticographic (ECoG) recordings, we here first aimed to verify how individual slow wave (SW; 0.5-4 Hz) density and properties (e.g., amplitude, slope, frequency) contribute to the higher SWS delta activity and altered 24-h dynamics observed in Nlgn2 KO mice. We further investigated the response of these animals to SD. Finally, we tested whether sleep loss affects the gene expression of Nlgn2 and related GABAergic transcripts in the cerebral cortex of wild-type mice using RNA sequencing. RESULTS Our results show that Nlgn2 KO mice have both greater SW amplitude and density, and that SW density is the main property contributing to the altered 24-h dynamics. We also found the absence of Nlgn2 to accelerate paradoxical sleep recovery following SD, together with profound alterations in ECoG activity across vigilance states. Sleep loss, however, did not modify the 24-h distribution of the hypersynchronized ECoG events observed in these mice. Finally, RNA sequencing confirmed an overall decrease in cortical expression of Nlgn2 and related GABAergic transcripts following SD in wild-type mice. CONCLUSIONS This work brings further insight into potential mechanisms of sleep duration and quality deregulation in neurodevelopmental disorders, notably involving NLGN2 and GABAergic neurotransmission.
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Affiliation(s)
- Tanya Leduc
- Department of Neuroscience, Université de Montréal, Montreal, QC, Canada
- Centre d'études avancées en médecine du sommeil (CÉAMS), Recherche - Centre intégré universitaire de santé et services sociaux du Nord-de-l'Île-de-Montréal, Montreal, QC, Canada
- Centre de recherche du Centre hospitalier de l'Université de Montréal, 900, St-Denis street, Tour Viger Montréal, Montreal, QC, H2X 0A9, Canada
| | - Hiba El Alami
- Department of Neuroscience, Université de Montréal, Montreal, QC, Canada
- Centre d'études avancées en médecine du sommeil (CÉAMS), Recherche - Centre intégré universitaire de santé et services sociaux du Nord-de-l'Île-de-Montréal, Montreal, QC, Canada
| | - Khadija Bougadir
- Department of Neuroscience, Université de Montréal, Montreal, QC, Canada
- Centre d'études avancées en médecine du sommeil (CÉAMS), Recherche - Centre intégré universitaire de santé et services sociaux du Nord-de-l'Île-de-Montréal, Montreal, QC, Canada
| | - Erika Bélanger-Nelson
- Centre d'études avancées en médecine du sommeil (CÉAMS), Recherche - Centre intégré universitaire de santé et services sociaux du Nord-de-l'Île-de-Montréal, Montreal, QC, Canada
- Pfizer Canada ULC, Montreal, QC, Canada
| | - Valérie Mongrain
- Department of Neuroscience, Université de Montréal, Montreal, QC, Canada.
- Centre d'études avancées en médecine du sommeil (CÉAMS), Recherche - Centre intégré universitaire de santé et services sociaux du Nord-de-l'Île-de-Montréal, Montreal, QC, Canada.
- Centre de recherche du Centre hospitalier de l'Université de Montréal, 900, St-Denis street, Tour Viger Montréal, Montreal, QC, H2X 0A9, Canada.
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Sosnowski DW, Smail EJ, Maher BS, Moore AZ, Kuo PL, Wu MN, Low DV, Stone KL, Simonsick EM, Ferrucci L, Spira AP. Sleep Duration Polygenic Risk and Phenotype: Associations with Biomarkers of Accelerated Aging in the Baltimore Longitudinal Study of Aging. Int J Aging Hum Dev 2024:914150241231192. [PMID: 38347745 DOI: 10.1177/00914150241231192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
We sought to explore whether genetic risk for, and self-reported, short sleep are associated with biological aging and whether age and sex moderate these associations. Participants were a subset of individuals from the Baltimore Longitudinal Study of Aging who had complete data on self-reported sleep (n = 567) or genotype (n = 367). Outcomes included: Intrinsic Horvath age, Hannum age, PhenoAge, GrimAge, and DNAm-based estimates of plasminogen activator inhibitor-1 (PAI-1) and granulocyte count. Results demonstrated that polygenic risk for short sleep was positively associated with granulocyte count; compared to those reporting <6 hr sleep, those reporting >7 hr demonstrated faster PhenoAge and GrimAge acceleration and higher estimated PAI-1. Polygenic risk for short sleep and self-reported sleep duration interacted with age and sex in their associations with some of the outcomes. Findings highlight that polygenic risk for short sleep and self-reported long sleep is associated with variation in the epigenetic landscape and subsequently aging.
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Affiliation(s)
- David W Sosnowski
- Department of Mental Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Emily J Smail
- Department of Mental Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Brion S Maher
- Department of Mental Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Ann Zenobia Moore
- Longitudinal Studies Section, Translational Gerontology Branch, Intramural Research Program, National Institute on Aging, Baltimore, MD, USA
| | - Pei-Lun Kuo
- Longitudinal Studies Section, Translational Gerontology Branch, Intramural Research Program, National Institute on Aging, Baltimore, MD, USA
| | - Mark N Wu
- Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Dominique V Low
- Department of Neurology, Yale University School of Medicine, New Haven, CT, USA
| | - Katie L Stone
- California Pacific Medical Center Research Institute, San Francisco, CA, USA
- Department of Epidemiology and Biostatistics, University of California, San Francisco, CA, USA
| | - Eleanor M Simonsick
- Longitudinal Studies Section, Translational Gerontology Branch, Intramural Research Program, National Institute on Aging, Baltimore, MD, USA
| | - Luigi Ferrucci
- Longitudinal Studies Section, Translational Gerontology Branch, Intramural Research Program, National Institute on Aging, Baltimore, MD, USA
| | - Adam P Spira
- Department of Mental Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
- Department of Psychiatry and Behavioral Services, Johns Hopkins School of Medicine, Baltimore, MD, USA
- Johns Hopkins Center on Aging and Health, Baltimore, MD, USA
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7
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Lyons LC, Vanrobaeys Y, Abel T. Sleep and memory: The impact of sleep deprivation on transcription, translational control, and protein synthesis in the brain. J Neurochem 2023; 166:24-46. [PMID: 36802068 PMCID: PMC10919414 DOI: 10.1111/jnc.15787] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 01/31/2023] [Accepted: 02/07/2023] [Indexed: 02/20/2023]
Abstract
In countries around the world, sleep deprivation represents a widespread problem affecting school-age children, teenagers, and adults. Acute sleep deprivation and more chronic sleep restriction adversely affect individual health, impairing memory and cognitive performance as well as increasing the risk and progression of numerous diseases. In mammals, the hippocampus and hippocampus-dependent memory are vulnerable to the effects of acute sleep deprivation. Sleep deprivation induces changes in molecular signaling, gene expression and may cause changes in dendritic structure in neurons. Genome wide studies have shown that acute sleep deprivation alters gene transcription, although the pool of genes affected varies between brain regions. More recently, advances in research have drawn attention to differences in gene regulation between the level of the transcriptome compared with the pool of mRNA associated with ribosomes for protein translation following sleep deprivation. Thus, in addition to transcriptional changes, sleep deprivation also affects downstream processes to alter protein translation. In this review, we focus on the multiple levels through which acute sleep deprivation impacts gene regulation, highlighting potential post-transcriptional and translational processes that may be affected by sleep deprivation. Understanding the multiple levels of gene regulation impacted by sleep deprivation is essential for future development of therapeutics that may mitigate the effects of sleep loss.
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Affiliation(s)
- Lisa C Lyons
- Program in Neuroscience, Department of Biological Science, Florida State University, Tallahassee, Florida, USA
| | - Yann Vanrobaeys
- Department of Neuroscience and Pharmacology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
- Iowa Neuroscience Institute, Iowa City, Iowa, USA
- Interdisciplinary Graduate Program in Genetics, University of Iowa, Iowa City, Iowa, USA
| | - Ted Abel
- Department of Neuroscience and Pharmacology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
- Iowa Neuroscience Institute, Iowa City, Iowa, USA
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Priviero F. Epigenetic modifications and fetal programming: Molecular mechanisms to control hypertension inheritance. Biochem Pharmacol 2023; 208:115412. [PMID: 36632959 PMCID: PMC10012045 DOI: 10.1016/j.bcp.2023.115412] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 01/04/2023] [Accepted: 01/06/2023] [Indexed: 01/11/2023]
Abstract
Cardiovascular diseases (CVD) are the number 1 cause of death in the United States and hypertension is a highly prevalent risk factor for CVD. It is estimated that up to 50 % of the hypertensive trait is genetically inherited while the other 50 % is determined by modifiable factors involving lifestyle, behaviors, and the environment. Interestingly, the hypertensive trait is induced or inhibited by epigenetic modifications modulated by modifiable factors. This review focused on the underlying mechanisms of stress, sleep deprivation, obesity and sedentarism as key players for epigenetic modifications contributing to the development of the hypertensive trait and, on the other hand, how epigenetic modifications induced by physical exercise and healthier habits may contribute to overturn and prevent the inheritance of hypertension trait. Furthermore, adversities during gestation and perinatal life also increase the risk for hypertension and CVD later in life, which can perpetuate the inheritance of the hypertensive trait whereas healthier habits during gestation and lactation may counteract fetal programming to improve the cardiovascular health of the progeny. Therefore, it is promising that a healthier lifestyle causes long-lasting epigenetic modifications and is transmitted to the next generation, strengthening the fight against the inheritance of hypertension.
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Affiliation(s)
- Fernanda Priviero
- Department of Cell Biology and Anatomy - School of Medicine, University of South Carolina, Columbia, SC, United States; Cardiovascular Translational Research Center - School of Medicine, University of South Carolina, Columbia, SC, United States; College of Engineering and Computing, Biomedical Engineering Program, University of South Carolina, Columbia, SC, United States.
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9
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Li QS, Morrison RL, Turecki G, Drevets WC. Meta-analysis of epigenome-wide association studies of major depressive disorder. Sci Rep 2022; 12:18361. [PMID: 36319817 PMCID: PMC9626569 DOI: 10.1038/s41598-022-22744-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 10/19/2022] [Indexed: 11/06/2022] Open
Abstract
Epigenetic mechanisms have been hypothesized to play a role in the etiology of major depressive disorder (MDD). In this study, we performed a meta-analysis between two case-control MDD cohorts to identify differentially methylated positions (DMPs) and differentially methylated regions (DMRs) in MDD. Using samples from two Cohorts (a total of 298 MDD cases and 63 controls with repeated samples, on average ~ 1.8 samples/subject), we performed an EWAS meta-analysis. Multiple cytosine-phosphate-guanine sites annotated to TNNT3 were associated with MDD reaching study-wide significance, including cg08337959 (p = 2.3 × 10-11). Among DMPs with association p values less than 0.0001, pathways from REACTOME such as Ras activation upon Ca2+ influx through the NMDA receptor (p = 0.0001, p-adjusted = 0.05) and long-term potentiation (p = 0.0002, p-adjusted = 0.05) were enriched in this study. A total of 127 DMRs with Sidak-corrected p value < 0.05 were identified from the meta-analysis, including DMRs annotated to TNNT3 (chr11: 1948933 to 1949130 [6 probes], Sidak corrected P value = 4.32 × 10-41), S100A13 (chr1: 153599479 to 153600972 [22 probes], Sidak corrected P value = 5.32 × 10-18), NRXN1 (chr2: 50201413 to 50201505 [4 probes], Sidak corrected P value = 1.19 × 10-11), IL17RA (chr22: 17564750 to 17565149, Sidak corrected P value = 9.31 × 10-8), and NPFFR2 (chr4: 72897565 to 72898212, Sidak corrected P value = 8.19 × 10-7). Using 2 Cohorts of depression case-control samples, we identified DMPs and DMRs associated with MDD. The molecular pathways implicated by these data include mechanisms involved in neuronal synaptic plasticity, calcium signaling, and inflammation, consistent with reports from previous genetic and protein biomarker studies indicating that these mechanisms are involved in the neurobiology of depression.
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Affiliation(s)
- Qingqin S. Li
- grid.497530.c0000 0004 0389 4927Neuroscience, Janssen Research and Development, LLC, Titusville, NJ USA ,grid.497530.c0000 0004 0389 4927JRD Data Science, Janssen Research and Development, LLC, Titusville, NJ USA
| | - Randall L. Morrison
- grid.497530.c0000 0004 0389 4927Neuroscience, Janssen Research and Development, LLC, Titusville, NJ USA ,Present Address: RLM Consulting LLC, 200 S Landmark Lane, Fort Washington, PA 19034 USA
| | - Gustavo Turecki
- grid.14709.3b0000 0004 1936 8649Douglas Mental Health University Institute, McGill University, Montreal, QC Canada
| | - Wayne C. Drevets
- Neuroscience, Janssen Research and Development, LLC, La Jolla, CA USA
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10
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Wang L, Aton SJ. Perspective - ultrastructural analyses reflect the effects of sleep and sleep loss on neuronal cell biology. Sleep 2022; 45:zsac047. [PMID: 35554582 PMCID: PMC9113019 DOI: 10.1093/sleep/zsac047] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 02/05/2022] [Indexed: 11/13/2022] Open
Abstract
Recent electron microscopic analyses of neurons in the Drosophila and rodent brain demonstrate that acute or chronic sleep loss can alter the structures of various organelles, including mitochondria, nucleus, and Golgi apparatus. Here, we discuss these findings in the context of biochemical findings from the sleep deprived brain, to clarify how these morphological changes may related to altered organelle function. We discuss how, taken together, the available data suggest that sleep loss (particularly chronic sleep loss) disrupts such fundamental cellular processes as transcription, translation, intracellular transport, and metabolism. A better understanding of these effects will have broad implications for understanding the biological importance of sleep, and the relationship of sleep loss to neuropathology.
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Affiliation(s)
- Lijing Wang
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - Sara J Aton
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
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11
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Mahmoud AM. An Overview of Epigenetics in Obesity: The Role of Lifestyle and Therapeutic Interventions. Int J Mol Sci 2022; 23:ijms23031341. [PMID: 35163268 PMCID: PMC8836029 DOI: 10.3390/ijms23031341] [Citation(s) in RCA: 54] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 01/22/2022] [Accepted: 01/24/2022] [Indexed: 02/06/2023] Open
Abstract
Obesity has become a global epidemic that has a negative impact on population health and the economy of nations. Genetic predispositions have been demonstrated to have a substantial role in the unbalanced energy metabolism seen in obesity. However, these genetic variations cannot entirely explain the massive growth in obesity over the last few decades. Accumulating evidence suggests that modern lifestyle characteristics such as the intake of energy-dense foods, adopting sedentary behavior, or exposure to environmental factors such as industrial endocrine disruptors all contribute to the rising obesity epidemic. Recent advances in the study of DNA and its alterations have considerably increased our understanding of the function of epigenetics in regulating energy metabolism and expenditure in obesity and metabolic diseases. These epigenetic modifications influence how DNA is transcribed without altering its sequence. They are dynamic, reflecting the interplay between the body and its surroundings. Notably, these epigenetic changes are reversible, making them appealing targets for therapeutic and corrective interventions. In this review, I discuss how these epigenetic modifications contribute to the disordered energy metabolism in obesity and to what degree lifestyle and weight reduction strategies and pharmacological drugs can restore energy balance by restoring normal epigenetic profiles.
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Affiliation(s)
- Abeer M Mahmoud
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, College of Medicine, University of Illinois at Chicago, Chicago, IL 60612, USA
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12
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Reyes-Resina I, Samer S, Kreutz MR, Oelschlegel AM. Molecular Mechanisms of Memory Consolidation That Operate During Sleep. Front Mol Neurosci 2021; 14:767384. [PMID: 34867190 PMCID: PMC8636908 DOI: 10.3389/fnmol.2021.767384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 10/27/2021] [Indexed: 11/17/2022] Open
Abstract
The role of sleep for brain function has been in the focus of interest for many years. It is now firmly established that sleep and the corresponding brain activity is of central importance for memory consolidation. Less clear are the underlying molecular mechanisms and their specific contribution to the formation of long-term memory. In this review, we summarize the current knowledge of such mechanisms and we discuss the several unknowns that hinder a deeper appreciation of how molecular mechanisms of memory consolidation during sleep impact synaptic function and engram formation.
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Affiliation(s)
- Irene Reyes-Resina
- Research Group Neuroplasticity, Leibniz Institute for Neurobiology, Magdeburg, Germany
| | - Sebastian Samer
- Research Group Neuroplasticity, Leibniz Institute for Neurobiology, Magdeburg, Germany
| | - Michael R Kreutz
- Research Group Neuroplasticity, Leibniz Institute for Neurobiology, Magdeburg, Germany.,Leibniz Group 'Dendritic Organelles and Synaptic Function', Center for Molecular Neurobiology, ZMNH, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,Center for Behavioral Brain Sciences, Otto von Guericke University, Magdeburg, Germany.,German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
| | - Anja M Oelschlegel
- Research Group Neuroplasticity, Leibniz Institute for Neurobiology, Magdeburg, Germany
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13
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Carpena MX, Bonilla C, Matijasevich A, Martins-Silva T, Genro JP, Hutz MH, Rohde LA, Tovo-Rodrigues L. Sleep-related traits and attention-deficit/hyperactivity disorder comorbidity: Shared genetic risk factors, molecular mechanisms, and causal effects. World J Biol Psychiatry 2021; 22:778-791. [PMID: 33821771 DOI: 10.1080/15622975.2021.1907719] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
OBJECTIVES To evaluate the shared genetic components, common pathways and causal relationship between ADHD and sleep-related phenotypes. METHODS We used the largest genome-wide association summary statistics available for attention-deficit/hyperactivity disorder (ADHD) and various sleep-related phenotypes (insomnia, napping, daytime dozing, snoring, ease getting up, daytime sleepiness, sleep duration and chronotype). We estimated the genomic correlation using cross-trait linkage disequilibrium score regression (LDSR) and investigated the potential common mechanisms using gene-based cross-trait metanalyses and functional enrichment analyses. The causal effect was estimated using two-sample Mendelian randomisation (TSMR), using the inverse variance weighted method as the main estimator. RESULTS A positive genomic correlation between insomnia, daytime napping, daytime dozing, snoring, daytime sleepiness, short and long sleep duration, and ADHD was observed. Insomnia, daytime sleepiness, and snoring shared genes with ADHD, that are involved in neurobiological functions and regulatory signalling pathways. The TSMR supported a causal effect of insomnia, daytime napping, and short sleep duration on ADHD, and of ADHD on long sleep duration and chronotype. CONCLUSION Comorbidity between sleep phenotypes and ADHD may be mediated by common genetic factors that play an important role in neuronal signalling pathways. A causal effect of sleep disturbances and short sleep duration on ADHD reinforced their role as predictors of ADHD.
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Affiliation(s)
- Marina Xavier Carpena
- Post-Graduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brazil
| | - Carolina Bonilla
- Departamento de Medicina Preventiva, Faculdade de Medicina FMUSP, Universidade de São Paulo, SP, Brasil.,Population Health Sciences, University of Bristol, Bristol, UK
| | - Alicia Matijasevich
- Post-Graduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brazil.,Departamento de Medicina Preventiva, Faculdade de Medicina FMUSP, Universidade de São Paulo, SP, Brasil
| | - Thais Martins-Silva
- Post-Graduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brazil
| | - Julia P Genro
- Graduate Program in Biosciences, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
| | - Mara Helena Hutz
- Department of Genetics, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Luis Augusto Rohde
- Federal University of Rio Grande do Sul, Department of Psychiatry, Child & Adolescent Psychiatry Unit, Hospital de Clinicas de Porto Alegre, Porto Alegre, Brazil
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14
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Bjørkum AA, Carrasco Duran A, Frode B, Sinha Roy D, Rosendahl K, Birkeland E, Stuhr L. Human blood serum proteome changes after 6 hours of sleep deprivation at night. SLEEP SCIENCE AND PRACTICE 2021. [DOI: 10.1186/s41606-021-00066-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Abstract
Background
The aim of this study was to discover significantly changed proteins in human blood serum after loss of 6 h sleep at night. Furthermore, to reveal affected biological process- and molecular function categories that might be clinically relevant, by exploring systems biological databases.
Methods
Eight females were recruited by volunteer request. Peripheral venous whole blood was sampled at 04:00 am, after 6 h of sleep and after 6 h of sleep deprivation. We used within-subjects design (all subjects were their own control). Blood serum from each subject was depleted before protein digestion by trypsin and iTRAQ labeling. Labled peptides were analyzed by mass spectrometry (LTQ OritrapVelos Elite) connected to a LC system (Dionex Ultimate NCR-3000RS).
Results
We identified 725 proteins in human blood serum. 34 proteins were significantly differentially expressed after 6 h of sleep deprivation at night. Out of 34 proteins, 14 proteins were up-regulated, and 20 proteins were down-regulated. We emphasized the functionality of the 16 proteins commonly differentiated in all 8 subjects and the relation to pathological conditions. In addition, we discussed Histone H4 (H4) and protein S100-A6/Calcyclin (S10A6) that were upregulated more than 1.5-fold. Finally, we discussed affected biological process- and molecular function categories.
Conclusions
Overall, our study suggest that acute sleep deprivation, at least in females, affects several known biological processes- and molecular function categories and associates to proteins that also are changed under pathological conditions like impaired coagulation, oxidative stress, immune suppression, neurodegenerative related disorder, and cancer. Data are available via ProteomeXchange with identifier PXD021004.
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15
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Applying deductive reasoning and the principles of particle physics to aging research. Aging (Albany NY) 2021; 13:22611-22622. [PMID: 34543232 PMCID: PMC8507302 DOI: 10.18632/aging.203555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 09/11/2021] [Indexed: 11/25/2022]
Abstract
Aging is debatably one of the biggest mysteries for humanity, a process consisting of myriads of genetic, molecular, environmental, and stochastic deleterious events, leading to a progressive loss of organism functionality. Aging research currently lacks a common conceptual framework, and one challenge in establishing it is the fact that aging is a highly complex process. To help develop a framework of standard aging rules, we suggest the use of deductive reasoning based on particle physics' principles. Specifically, the principles that we suggest applying to study aging are discreteness of processes, transformation as a result of interaction, and understanding of threshold. Using this framework, biological aging may be described as a sequence of highly discrete molecular transformations caused by a combination of various specific internal and external factors. Internal organismal function and interaction of an organism with the environment result in chronic accumulation of molecular damage and other deleterious consequences of metabolism and the consequent loss of system's functionality. The loss of functionality occurs as a series of thresholds the organism reaches before it turns into an utterly non-functional state. We discuss how having a common ground may benefit aging research, introduce the logic of new principles and analyze specific examples of how this framework could be used to study aging and design longevity interventions.
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16
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Saad L, Zwiller J, Kalsbeek A, Anglard P. Epigenetic Regulation of Circadian Clocks and Its Involvement in Drug Addiction. Genes (Basel) 2021; 12:1263. [PMID: 34440437 PMCID: PMC8394526 DOI: 10.3390/genes12081263] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 08/04/2021] [Accepted: 08/11/2021] [Indexed: 12/19/2022] Open
Abstract
Based on studies describing an increased prevalence of addictive behaviours in several rare sleep disorders and shift workers, a relationship between circadian rhythms and addiction has been hinted for more than a decade. Although circadian rhythm alterations and molecular mechanisms associated with neuropsychiatric conditions are an area of active investigation, success is limited so far, and further investigations are required. Thus, even though compelling evidence connects the circadian clock to addictive behaviour and vice-versa, yet the functional mechanism behind this interaction remains largely unknown. At the molecular level, multiple mechanisms have been proposed to link the circadian timing system to addiction. The molecular mechanism of the circadian clock consists of a transcriptional/translational feedback system, with several regulatory loops, that are also intricately regulated at the epigenetic level. Interestingly, the epigenetic landscape shows profound changes in the addictive brain, with significant alterations in histone modification, DNA methylation, and small regulatory RNAs. The combination of these two observations raises the possibility that epigenetic regulation is a common plot linking the circadian clocks with addiction, though very little evidence has been reported to date. This review provides an elaborate overview of the circadian system and its involvement in addiction, and we hypothesise a possible connection at the epigenetic level that could further link them. Therefore, we think this review may further improve our understanding of the etiology or/and pathology of psychiatric disorders related to drug addiction.
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Affiliation(s)
- Lamis Saad
- Laboratoire de Neurosciences Cognitives et Adaptatives (LNCA), UMR 7364 CNRS, Université de Strasbourg, Neuropôle de Strasbourg, 67000 Strasbourg, France; (L.S.); (J.Z.)
- The Netherlands Institute for Neuroscience (NIN), Royal Netherlands Academy of Arts and Sciences (KNAW), 1105 BA Amsterdam, The Netherlands;
- Department of Endocrinology and Metabolism, Amsterdam University Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - Jean Zwiller
- Laboratoire de Neurosciences Cognitives et Adaptatives (LNCA), UMR 7364 CNRS, Université de Strasbourg, Neuropôle de Strasbourg, 67000 Strasbourg, France; (L.S.); (J.Z.)
- Centre National de la Recherche Scientifique (CNRS), 75016 Paris, France
| | - Andries Kalsbeek
- The Netherlands Institute for Neuroscience (NIN), Royal Netherlands Academy of Arts and Sciences (KNAW), 1105 BA Amsterdam, The Netherlands;
- Department of Endocrinology and Metabolism, Amsterdam University Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - Patrick Anglard
- Laboratoire de Neurosciences Cognitives et Adaptatives (LNCA), UMR 7364 CNRS, Université de Strasbourg, Neuropôle de Strasbourg, 67000 Strasbourg, France; (L.S.); (J.Z.)
- Institut National de la Santé et de la Recherche Médicale (INSERM), 75013 Paris, France
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17
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Cheron J, Kerchove d'Exaerde AD. Drug addiction: from bench to bedside. Transl Psychiatry 2021; 11:424. [PMID: 34385417 PMCID: PMC8361217 DOI: 10.1038/s41398-021-01542-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 07/14/2021] [Accepted: 07/23/2021] [Indexed: 02/06/2023] Open
Abstract
Drug addiction is responsible for millions of deaths per year around the world. Still, its management as a chronic disease is shadowed by misconceptions from the general public. Indeed, drug consumers are often labelled as "weak", "immoral" or "depraved". Consequently, drug addiction is often perceived as an individual problem and not societal. In technical terms, drug addiction is defined as a chronic, relapsing disease resulting from sustained effects of drugs on the brain. Through a better characterisation of the cerebral circuits involved, and the long-term modifications of the brain induced by addictive drugs administrations, first, we might be able to change the way the general public see the patient who is suffering from drug addiction, and second, we might be able to find new treatments to normalise the altered brain homeostasis. In this review, we synthetise the contribution of fundamental research to the understanding drug addiction and its contribution to potential novel therapeutics. Mostly based on drug-induced modifications of synaptic plasticity and epigenetic mechanisms (and their behavioural correlates) and after demonstration of their reversibility, we tried to highlight promising therapeutics. We also underline the specific temporal dynamics and psychosocial aspects of this complex psychiatric disease adding parameters to be considered in clinical trials and paving the way to test new therapeutic venues.
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Affiliation(s)
- Julian Cheron
- Laboratory of Neurophysiology, ULB Neuroscience Institute, Université Libre de Bruxelles (ULB), Brussels, B-1070, Belgium
| | - Alban de Kerchove d'Exaerde
- Laboratory of Neurophysiology, ULB Neuroscience Institute, Université Libre de Bruxelles (ULB), Brussels, B-1070, Belgium.
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18
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Gaine ME, Bahl E, Chatterjee S, Michaelson JJ, Abel T, Lyons LC. Altered hippocampal transcriptome dynamics following sleep deprivation. Mol Brain 2021; 14:125. [PMID: 34384474 PMCID: PMC8361790 DOI: 10.1186/s13041-021-00835-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 07/27/2021] [Indexed: 12/13/2022] Open
Abstract
Widespread sleep deprivation is a continuing public health problem in the United States and worldwide affecting adolescents and adults. Acute sleep deprivation results in decrements in spatial memory and cognitive impairments. The hippocampus is vulnerable to acute sleep deprivation with changes in gene expression, cell signaling, and protein synthesis. Sleep deprivation also has long lasting effects on memory and performance that persist after recovery sleep, as seen in behavioral studies from invertebrates to humans. Although previous research has shown that acute sleep deprivation impacts gene expression, the extent to which sleep deprivation affects gene regulation remains unknown. Using an unbiased deep RNA sequencing approach, we investigated the effects of acute sleep deprivation on gene expression in the hippocampus. We identified 1,146 genes that were significantly dysregulated following sleep deprivation with 507 genes upregulated and 639 genes downregulated, including protein coding genes and long non-coding RNAs not previously identified as impacted by sleep deprivation. Notably, genes significantly upregulated after sleep deprivation were associated with RNA splicing and the nucleus. In contrast, downregulated genes were associated with cell adhesion, dendritic localization, the synapse, and postsynaptic membrane. Furthermore, we found through independent experiments analyzing a subset of genes that three hours of recovery sleep following acute sleep deprivation was sufficient to normalize mRNA abundance for most genes, although exceptions occurred for some genes that may affect RNA splicing or transcription. These results clearly demonstrate that sleep deprivation differentially regulates gene expression on multiple transcriptomic levels to impact hippocampal function.
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Affiliation(s)
- Marie E Gaine
- Department of Neuroscience and Pharmacology, Iowa Neuroscience Institute, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
- Department of Pharmaceutical Sciences and Experimental Therapeutics (PSET), College of Pharmacy, University of Iowa, Iowa City, IA, USA
| | - Ethan Bahl
- Department of Psychiatry, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
- Interdisciplinary Graduate Program in Genetics, University of Iowa, Iowa City, IA, USA
| | - Snehajyoti Chatterjee
- Department of Neuroscience and Pharmacology, Iowa Neuroscience Institute, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Jacob J Michaelson
- Department of Psychiatry, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
- Department of Biomedical Engineering, College of Engineering, University of Iowa, Iowa City, IA, USA
- Department of Communication Sciences and Disorders, College of Liberal Arts and Sciences, University of Iowa, Iowa City, IA, USA
- Iowa Institute of Human Genetics, University of Iowa, Iowa City, IA, USA
| | - Ted Abel
- Department of Neuroscience and Pharmacology, Iowa Neuroscience Institute, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Lisa C Lyons
- Department of Neuroscience and Pharmacology, Iowa Neuroscience Institute, Carver College of Medicine, University of Iowa, Iowa City, IA, USA.
- Department of Biological Science, Program in Neuroscience, Florida State University, Tallahassee, FL, USA.
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19
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Gobbo D, Scheller A, Kirchhoff F. From Physiology to Pathology of Cortico-Thalamo-Cortical Oscillations: Astroglia as a Target for Further Research. Front Neurol 2021; 12:661408. [PMID: 34177766 PMCID: PMC8219957 DOI: 10.3389/fneur.2021.661408] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 05/11/2021] [Indexed: 12/21/2022] Open
Abstract
The electrographic hallmark of childhood absence epilepsy (CAE) and other idiopathic forms of epilepsy are 2.5-4 Hz spike and wave discharges (SWDs) originating from abnormal electrical oscillations of the cortico-thalamo-cortical network. SWDs are generally associated with sudden and brief non-convulsive epileptic events mostly generating impairment of consciousness and correlating with attention and learning as well as cognitive deficits. To date, SWDs are known to arise from locally restricted imbalances of excitation and inhibition in the deep layers of the primary somatosensory cortex. SWDs propagate to the mostly GABAergic nucleus reticularis thalami (NRT) and the somatosensory thalamic nuclei that project back to the cortex, leading to the typical generalized spike and wave oscillations. Given their shared anatomical basis, SWDs have been originally considered the pathological transition of 11-16 Hz bursts of neural oscillatory activity (the so-called sleep spindles) occurring during Non-Rapid Eye Movement (NREM) sleep, but more recent research revealed fundamental functional differences between sleep spindles and SWDs, suggesting the latter could be more closely related to the slow (<1 Hz) oscillations alternating active (Up) and silent (Down) cortical activity and concomitantly occurring during NREM. Indeed, several lines of evidence support the fact that SWDs impair sleep architecture as well as sleep/wake cycles and sleep pressure, which, in turn, affect seizure circadian frequency and distribution. Given the accumulating evidence on the role of astroglia in the field of epilepsy in the modulation of excitation and inhibition in the brain as well as on the development of aberrant synchronous network activity, we aim at pointing at putative contributions of astrocytes to the physiology of slow-wave sleep and to the pathology of SWDs. Particularly, we will address the astroglial functions known to be involved in the control of network excitability and synchronicity and so far mainly addressed in the context of convulsive seizures, namely (i) interstitial fluid homeostasis, (ii) K+ clearance and neurotransmitter uptake from the extracellular space and the synaptic cleft, (iii) gap junction mechanical and functional coupling as well as hemichannel function, (iv) gliotransmission, (v) astroglial Ca2+ signaling and downstream effectors, (vi) reactive astrogliosis and cytokine release.
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Affiliation(s)
- Davide Gobbo
- Molecular Physiology, Center for Integrative Physiology and Molecular Medicine (CIPMM), University of Saarland, Homburg, Germany
| | - Anja Scheller
- Molecular Physiology, Center for Integrative Physiology and Molecular Medicine (CIPMM), University of Saarland, Homburg, Germany
| | - Frank Kirchhoff
- Molecular Physiology, Center for Integrative Physiology and Molecular Medicine (CIPMM), University of Saarland, Homburg, Germany
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20
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Tinarelli F, Ivanova E, Colombi I, Barini E, Balzani E, Garcia CG, Gasparini L, Chiappalone M, Kelsey G, Tucci V. Cell-cell coupling and DNA methylation abnormal phenotypes in the after-hours mice. Epigenetics Chromatin 2021; 14:1. [PMID: 33407878 PMCID: PMC7789812 DOI: 10.1186/s13072-020-00373-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 11/13/2020] [Indexed: 11/10/2022] Open
Abstract
Background DNA methylation has emerged as an important epigenetic regulator of brain processes, including circadian rhythms. However, how DNA methylation intervenes between environmental signals, such as light entrainment, and the transcriptional and translational molecular mechanisms of the cellular clock is currently unknown. Here, we studied the after-hours mice, which have a point mutation in the Fbxl3 gene and a lengthened circadian period. Methods In this study, we used a combination of in vivo, ex vivo and in vitro approaches. We measured retinal responses in Afh animals and we have run reduced representation bisulphite sequencing (RRBS), pyrosequencing and gene expression analysis in a variety of brain tissues ex vivo. In vitro, we used primary neuronal cultures combined to micro electrode array (MEA) technology and gene expression. Results We observed functional impairments in mutant neuronal networks, and a reduction in the retinal responses to light-dependent stimuli. We detected abnormalities in the expression of photoreceptive melanopsin (OPN4). Furthermore, we identified alterations in the DNA methylation pathways throughout the retinohypothalamic tract terminals and links between the transcription factor Rev-Erbα and Fbxl3. Conclusions The results of this study, primarily represent a contribution towards an understanding of electrophysiological and molecular phenotypic responses to external stimuli in the Afh model. Moreover, as DNA methylation has recently emerged as a new regulator of neuronal networks with important consequences for circadian behaviour, we discuss the impact of the Afh mutation on the epigenetic landscape of circadian biology.
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Affiliation(s)
- Federico Tinarelli
- Genetics and Epigenetics of Behaviour (GEB) Laboratory, Istituto Italiano Di Tecnologia, via Morego, 30, 16163, Genova, Italy.,BioMed X Innovation Center, Im Neuenheimer Feld 515, 69120, Heidelberg, Germany
| | - Elena Ivanova
- Epigenetics Programme, The Babraham Institute, Cambridge, UK
| | - Ilaria Colombi
- Neuroscience and Brain Technologies, Istituto Italiano Di Tecnologia, via Morego, 30, 16163, Genova, Italy.,Brain Development and Disease, NBT, Istituto Italiano Di Tecnologia, via Morego, 30, 16163, Genova, Italy
| | - Erica Barini
- Neurodevelopmental and Neurodegenerative Disease Laboratory, Istituto Italiano Di Tecnologia, via Morego, 30, 16163, Genova, Italy.,AbbVie Deutschland GmbH & Co, Knollstr, 67061, Ludwigshafen, Germany
| | - Edoardo Balzani
- Genetics and Epigenetics of Behaviour (GEB) Laboratory, Istituto Italiano Di Tecnologia, via Morego, 30, 16163, Genova, Italy.,Center for Neural Science, New York University, New York, NY, 10006, USA
| | - Celina Garcia Garcia
- Genetics and Epigenetics of Behaviour (GEB) Laboratory, Istituto Italiano Di Tecnologia, via Morego, 30, 16163, Genova, Italy
| | - Laura Gasparini
- Neurodevelopmental and Neurodegenerative Disease Laboratory, Istituto Italiano Di Tecnologia, via Morego, 30, 16163, Genova, Italy.,AbbVie Deutschland GmbH & Co, Knollstr, 67061, Ludwigshafen, Germany
| | - Michela Chiappalone
- Neuroscience and Brain Technologies, Istituto Italiano Di Tecnologia, via Morego, 30, 16163, Genova, Italy.,Rehab Technologies, Istituto Italiano Di Tecnologia, via Morego, 30, 16163, Genova, Italy
| | - Gavin Kelsey
- Epigenetics Programme, The Babraham Institute, Cambridge, UK
| | - Valter Tucci
- Genetics and Epigenetics of Behaviour (GEB) Laboratory, Istituto Italiano Di Tecnologia, via Morego, 30, 16163, Genova, Italy.
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21
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Kurczewska E, Ferensztajn-Rochowiak E, Rybakowski F, Michalak M, Rybakowski J. Treatment-resistant depression: Neurobiological correlates and the effect of sleep deprivation with sleep phase advance for the augmentation of pharmacotherapy. World J Biol Psychiatry 2021; 22:58-69. [PMID: 32295463 DOI: 10.1080/15622975.2020.1755449] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVES To assess the neurobiology of treatment-resistant depression (TRD), and factors connected with improvement after total sleep deprivation (TSD) with sleep phase advance (SPA), for the augmentation of pharmacotherapy. METHODS The study comprised 43 patients with TRD, (15 male, 28 female), aged 48 ± 13 years, with the illness duration 12 ± 9 years, and the depressive episode 8 ± 7 months. TRD was defined as a lack of significant improvement despite at least two antidepressant treatments and the augmentation with mood-stabilisers. Clinical improvement (response) was a reduction of ≥50% of points in the Hamilton Depression Rating Scale (HDRS), and the remission criterion was ≤7 points in HDRS, lasting until the 14th day after TSD + SPA. RESULTS TRD severity was associated with greater activity of the hypothalamic-pituitary-adrenal axis, the pro-inflammatory status of the immune system and lower reactivity of the hypothalamic-pituitary-thyroid axis. The response was achieved by 18 of 42 subjects, and connected with the later onset and shorter duration of the disease. In responders, there was a decrease in cortisol and interferon-gamma. In all subjects, a decrease in thyroid hormones was observed. CONCLUSIONS TRD can improve after augmentation of pharmacotherapy by TSD + SPA and some biological changes may be compatible with a decrease in allostatic load.
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Affiliation(s)
- Ewa Kurczewska
- Department of Adult Psychiatry, Poznan University of Medical Sciences, Poznan, Poland
| | | | - Filip Rybakowski
- Department of Adult Psychiatry, Poznan University of Medical Sciences, Poznan, Poland
| | - Michał Michalak
- Department of Computer Science and Statistics, Poznan University of Medical Sciences, Poznan, Poland
| | - Janusz Rybakowski
- Department of Adult Psychiatry, Poznan University of Medical Sciences, Poznan, Poland.,Department of Psychiatric Nursing, Poznan University of Medical Sciences, Poznan, Poland
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22
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Lim ASP. Diurnal and seasonal molecular rhythms in the human brain and their relation to Alzheimer disease. HANDBOOK OF CLINICAL NEUROLOGY 2021; 179:271-284. [PMID: 34225968 DOI: 10.1016/b978-0-12-819975-6.00017-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Diurnal and seasonal rhythms influence many aspects of human physiology including brain function. Moreover, altered diurnal and seasonal behavioral and physiological rhythms have been linked to Alzheimer's disease and related dementias (ADRD). Understanding the molecular basis for these links may lead to identification of novel targets to mitigate the negative impact of normal and abnormal diurnal and seasonal rhythms on ADRD or to alleviate the adverse consequences of ADRD on normal diurnal and seasonal rhythms. Diurnally and seasonally rhythmic gene expression and epigenetic modification in the human neocortex may be a key mechanism underlying these links. This chapter will first review the observed epidemiological links between normal and abnormal diurnal and seasonal rhythmicity, cognitive impairment, and ADRD. Then it will review normal diurnal and seasonal rhythms of brain epigenetic modification and gene expression in model organisms. Finally, it will review evidence for diurnal and seasonal rhythms of epigenetic modification and gene expression the human brain in aging, Alzheimer's disease, and other brain disorders.
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Affiliation(s)
- Andrew S P Lim
- Division of Neurology, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada.
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23
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Lyons LC, Chatterjee S, Vanrobaeys Y, Gaine ME, Abel T. Translational changes induced by acute sleep deprivation uncovered by TRAP-Seq. Mol Brain 2020; 13:165. [PMID: 33272296 PMCID: PMC7713217 DOI: 10.1186/s13041-020-00702-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 11/17/2020] [Indexed: 12/14/2022] Open
Abstract
Sleep deprivation is a global health problem adversely affecting health as well as causing decrements in learning and performance. Sleep deprivation induces significant changes in gene transcription in many brain regions, with the hippocampus particularly susceptible to acute sleep deprivation. However, less is known about the impacts of sleep deprivation on post-transcriptional gene regulation. To identify the effects of sleep deprivation on the translatome, we took advantage of the RiboTag mouse line to express HA-labeled Rpl22 in CaMKIIα neurons to selectively isolate and sequence mRNA transcripts associated with ribosomes in excitatory neurons. We found 198 differentially expressed genes in the ribosome-associated mRNA subset after sleep deprivation. In comparison with previously published data on gene expression in the hippocampus after sleep deprivation, we found that the subset of genes affected by sleep deprivation was considerably different in the translatome compared with the transcriptome, with only 49 genes regulated similarly. Interestingly, we found 478 genes differentially regulated by sleep deprivation in the transcriptome that were not significantly regulated in the translatome of excitatory neurons. Conversely, there were 149 genes differentially regulated by sleep deprivation in the translatome but not in the whole transcriptome. Pathway analysis revealed differences in the biological functions of genes exclusively regulated in the transcriptome or translatome, with protein deacetylase activity and small GTPase binding regulated in the transcriptome and unfolded protein binding, kinase inhibitor activity, neurotransmitter receptors and circadian rhythms regulated in the translatome. These results indicate that sleep deprivation induces significant changes affecting the pool of actively translated mRNAs.
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Affiliation(s)
- Lisa C Lyons
- Department of Neuroscience and Pharmacology, Iowa Neuroscience Institute, Carver College of Medicine, University of Iowa, Iowa City, IA, USA.
- Program in Neuroscience, Department of Biological Science, Florida State University, Tallahassee, FL, USA.
| | - Snehajyoti Chatterjee
- Department of Neuroscience and Pharmacology, Iowa Neuroscience Institute, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Yann Vanrobaeys
- Department of Neuroscience and Pharmacology, Iowa Neuroscience Institute, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Marie E Gaine
- Department of Neuroscience and Pharmacology, Iowa Neuroscience Institute, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
- Department of Pharmaceutical Sciences and Experimental Therapeutics (PSET), College of Pharmacy, University of Iowa, Iowa City, IA, USA
| | - Ted Abel
- Department of Neuroscience and Pharmacology, Iowa Neuroscience Institute, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
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24
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Kerr J. Early Growth Response Gene Upregulation in Epstein-Barr Virus (EBV)-Associated Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS). Biomolecules 2020; 10:biom10111484. [PMID: 33114612 PMCID: PMC7692278 DOI: 10.3390/biom10111484] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/22/2020] [Accepted: 10/23/2020] [Indexed: 02/06/2023] Open
Abstract
Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a chronic multisystem disease exhibiting a variety of symptoms and affecting multiple systems. Psychological stress and virus infection are important. Virus infection may trigger the onset, and psychological stress may reactivate latent viruses, for example, Epstein-Barr virus (EBV). It has recently been reported that EBV induced gene 2 (EBI2) was upregulated in blood in a subset of ME/CFS patients. The purpose of this study was to determine whether the pattern of expression of early growth response (EGR) genes, important in EBV infection and which have also been found to be upregulated in blood of ME/CFS patients, paralleled that of EBI2. EGR gene upregulation was found to be closely associated with that of EBI2 in ME/CFS, providing further evidence in support of ongoing EBV reactivation in a subset of ME/CFS patients. EGR1, EGR2, and EGR3 are part of the cellular immediate early gene response and are important in EBV transcription, reactivation, and B lymphocyte transformation. EGR1 is a regulator of immune function, and is important in vascular homeostasis, psychological stress, connective tissue disease, mitochondrial function, all of which are relevant to ME/CFS. EGR2 and EGR3 are negative regulators of T lymphocytes and are important in systemic autoimmunity.
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Affiliation(s)
- Jonathan Kerr
- Department of Microbiology, Norfolk & Norwich University Hospital (NNUH), Colney Lane, Norwich, Norfolk NR4 7UY, UK
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25
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Koopman‐Verhoeff ME, Mulder RH, Saletin JM, Reiss I, van der Horst GT, Felix JF, Carskadon MA, Tiemeier H, Cecil CA. Genome-wide DNA methylation patterns associated with sleep and mental health in children: a population-based study. J Child Psychol Psychiatry 2020; 61:1061-1069. [PMID: 32361995 PMCID: PMC7586967 DOI: 10.1111/jcpp.13252] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/01/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND DNA methylation (DNAm) has been implicated in the biology of sleep. Yet, how DNAm patterns across the genome relate to different sleep outcomes, and whether these associations overlap with mental health is currently unknown. Here, we investigated associations of DNAm with sleep and mental health in a pediatric population. METHODS This cross-sectional study included 465 10-year-old children (51.3% female) from the Generation R Study. Genome-wide DNAm levels were measured using the Illumina 450K array (peripheral blood). Sleep problems were assessed from self-report and mental health outcomes from maternal questionnaires. Wrist actigraphy was used in 188 11-year-old children to calculate sleep duration and midpoint sleep. Weighted gene co-expression network analysis was used to identify highly comethylated DNAm 'modules', which were tested for associations with sleep and mental health outcomes. RESULTS We identified 64 DNAm modules, one of which associated with sleep duration after covariate and multiple testing adjustment. This module included CpG sites spanning 9 genes on chromosome 17, including MAPT - a key regulator of Tau proteins in the brain involved in neuronal function - as well as genes previously implicated in sleep duration. Follow-up analyses suggested that DNAm variation in this region is under considerable genetic control and shows strong blood-brain concordance. DNAm modules associated with sleep did not overlap with those associated with mental health. CONCLUSIONS We identified one DNAm region associated with sleep duration, including genes previously reported by recent GWAS studies. Further research is warranted to examine the functional role of this region and its longitudinal association with sleep.
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Affiliation(s)
- Maria Elisabeth Koopman‐Verhoeff
- Department of Child and Adolescent PsychiatryErasmus University Medical CenterSophia Children’s HospitalRotterdamThe Netherlands,The Generation R Study GroupErasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands,EP Bradley Hospital Sleep LaboratoryAlpert Medical School of Brown UniversityProvidenceRIUSA
| | - Rosa H. Mulder
- Department of Child and Adolescent PsychiatryErasmus University Medical CenterSophia Children’s HospitalRotterdamThe Netherlands,The Generation R Study GroupErasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands,Institute of Education and Child StudiesLeiden UniversityLeidenThe Netherlands
| | - Jared M. Saletin
- EP Bradley Hospital Sleep LaboratoryAlpert Medical School of Brown UniversityProvidenceRIUSA
| | - Irwin Reiss
- Department of PediatricsErasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
| | | | - Janine F. Felix
- The Generation R Study GroupErasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands,Department of PediatricsErasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
| | - Mary A. Carskadon
- EP Bradley Hospital Sleep LaboratoryAlpert Medical School of Brown UniversityProvidenceRIUSA
| | - Henning Tiemeier
- Department of Child and Adolescent PsychiatryErasmus University Medical CenterSophia Children’s HospitalRotterdamThe Netherlands,Department of Social and Behavioral ScienceHarvard TH Chan School of Public HealthBostonMAUSA
| | - Charlotte A.M. Cecil
- Department of Child and Adolescent PsychiatryErasmus University Medical CenterSophia Children’s HospitalRotterdamThe Netherlands,The Generation R Study GroupErasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands,Department of EpidemiologyErasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
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26
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Varela RB, Resende WR, Dal-Pont GC, Gava FF, Nadas GB, Tye SJ, Andersen ML, Quevedo J, Valvassori SS. Role of epigenetic regulatory enzymes in animal models of mania induced by amphetamine and paradoxical sleep deprivation. Eur J Neurosci 2020; 53:649-662. [PMID: 32735698 DOI: 10.1111/ejn.14922] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 06/26/2020] [Accepted: 07/19/2020] [Indexed: 01/22/2023]
Abstract
It is known that bipolar disorder has a multifactorial aetiology where the interaction between genetic and environmental factors is responsible for its development. Because of this, epigenetics has been largely studied in psychiatric disorders. The present study aims to evaluate the effects of histone deacetylase inhibitors on epigenetic enzyme alterations in rats or mice submitted to animal models of mania induced by dextro-amphetamine or sleep deprivation, respectively. Adult male Wistar rats were subjected to 14 days of dextro-amphetamine administration, and from the eighth to the fourteenth day, the animals were treated with valproate and sodium butyrate in addition to dextro-amphetamine injections. Adult C57BL/6 mice received 7 days of valproate or sodium butyrate administration, being sleep deprived at the last 36 hr of the protocol. Locomotor and exploratory activities of rats and mice were evaluated in the open-field test, and histone deacetylase, DNA methyltransferase, and histone acetyltransferase activities were assessed in the frontal cortex, hippocampus, and striatum. Dextro-amphetamine and sleep deprivation induced hyperactivity and increased histone deacetylase and DNA methyltransferase activities in the animal's brain. Valproate and sodium butyrate were able to reverse hyperlocomotion induced by both animal models, as well as the alterations on histone deacetylase and DNA methyltransferase activities. There was a positive correlation between enzyme activities and number of crossings for both models. Histone deacetylase and DNA methyltransferase activities also presented a positive correlation between theirselves. These results suggest that epigenetics can play an important role in BD pathophysiology as well as in its treatment.
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Affiliation(s)
- Roger B Varela
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Brazil.,Queensland Brain Institute, The University of Queensland, Brisbane, QLD, Australia
| | - Wilson R Resende
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Brazil
| | - Gustavo C Dal-Pont
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Brazil
| | - Fernanda F Gava
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Brazil
| | - Gabriella B Nadas
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Brazil
| | - Susannah J Tye
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD, Australia
| | - Monica L Andersen
- Departamento de Psicobiologia, Universidade Federal de São Paulo (Unifesp), São Paulo, Brazil
| | - João Quevedo
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Brazil.,Translational Psychiatry Program, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA.,Center of Excellence on Mood Disorders, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA.,Neuroscience Graduate Program, The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, USA
| | - Samira S Valvassori
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Brazil
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27
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Jansen EC, Dolinoy DC, O'Brien LM, Peterson KE, Chervin RD, Banker M, Téllez-Rojo MM, Cantoral A, Mercado-Garcia A, Sanchez B, Goodrich JM. Sleep duration and fragmentation in relation to leukocyte DNA methylation in adolescents. Sleep 2020; 42:5513437. [PMID: 31181146 PMCID: PMC7255500 DOI: 10.1093/sleep/zsz121] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 03/27/2019] [Indexed: 12/14/2022] Open
Abstract
STUDY OBJECTIVES Sleep deprivation and low sleep quality are widespread among adolescents, and associate with obesity risk. Plausible mediators include diet and physical activity. Another potential interrelated pathway, as yet unexplored in adolescents, could involve epigenetic modification of metabolism genes. METHODS In a cohort of 351 Mexico City adolescents (47% male; mean [SD] age = 14 [2] years), 7-day actigraphy was used to assess average sleep duration, sleep fragmentation, and movement index. DNA isolated from blood leukocytes was bisulfite-converted, amplified, and pyrosequenced at four candidate regions. Linear mixed models evaluated sex-stratified associations between sleep characteristics (split into quartiles [Q]) and DNA methylation of each region, adjusted for potential confounders. RESULTS Mean sleep duration was 8.5 [0.8] hours for boys and 8.7 [1] hours for girls. There were sex-specific associations between sleep duration and LINE-1 (long interspersed nuclear element) methylation. Boys with longer sleep duration (Q4) had lower LINE-1 methylation than boys in the 3rd quartile reference category, while girls with both longer and shorter sleep duration had higher LINE-1 methylation compared to Q3. Longer sleep duration was associated with higher H19 methylation among girls (comparing highest to third quartile, -0.9% [-2.2, 0.5]; p, trend = 0.047). Sleep fragmentation was inversely associated with peroxisome proliferator-activated receptor alpha (PPARA) methylation among girls (comparing highest to lowest fragmentation quartile, 0.9% [0.1 to 1.8]). Girls also showed an inverse association between sleep fragmentation and hydroxysteroid (11-beta) dehydrogenase 2 (HSD11B2; Q4 to Q1, 0.6% [-1.2%, 0%]). CONCLUSIONS Sleep duration and fragmentation in adolescents show sex-specific associations with leukocyte DNA methylation patterns of metabolism genes.
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Affiliation(s)
- Erica C Jansen
- Sleep Disorders Center and Department of Neurology, University of Michigan, Ann Arbor, MI.,Department of Nutritional Sciences, University of Michigan School of Public Health, Ann Arbor, MI
| | - Dana C Dolinoy
- Department of Nutritional Sciences, University of Michigan School of Public Health, Ann Arbor, MI.,Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI
| | - Louise M O'Brien
- Sleep Disorders Center and Department of Neurology, University of Michigan, Ann Arbor, MI.,Department of Obstetrics & Gynecology, University of Michigan, Ann Arbor, MI
| | - Karen E Peterson
- Department of Nutritional Sciences, University of Michigan School of Public Health, Ann Arbor, MI
| | - Ronald D Chervin
- Sleep Disorders Center and Department of Neurology, University of Michigan, Ann Arbor, MI
| | - Margaret Banker
- Department of Biostatistics, University of Michigan School of Public Health, Ann Arbor, MI
| | - Martha María Téllez-Rojo
- Center for Research on Nutrition and Health, National Institute of Public Health, Cuernavaca, Mexico
| | | | - Adriana Mercado-Garcia
- Center for Research on Nutrition and Health, National Institute of Public Health, Cuernavaca, Mexico
| | - Brisa Sanchez
- Department of Epidemiology and Biostatistics, Drexel University, Philadelphia, PA
| | - Jaclyn M Goodrich
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI
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28
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Rapid fast-delta decay following prolonged wakefulness marks a phase of wake-inertia in NREM sleep. Nat Commun 2020; 11:3130. [PMID: 32561733 PMCID: PMC7305232 DOI: 10.1038/s41467-020-16915-0] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 05/30/2020] [Indexed: 11/25/2022] Open
Abstract
Sleep-wake driven changes in non-rapid-eye-movement sleep (NREM) sleep (NREMS) EEG delta (δ-)power are widely used as proxy for a sleep homeostatic process. Here, we noted frequency increases in δ-waves in sleep-deprived mice, prompting us to re-evaluate how slow-wave characteristics relate to prior sleep-wake history. We identified two classes of δ-waves; one responding to sleep deprivation with high initial power and fast, discontinuous decay during recovery sleep (δ2) and another unrelated to time-spent-awake with slow, linear decay (δ1). Reanalysis of previously published datasets demonstrates that δ-band heterogeneity after sleep deprivation is also present in human subjects. Similar to sleep deprivation, silencing of centromedial thalamus neurons boosted subsequent δ2-waves, specifically. δ2-dynamics paralleled that of temperature, muscle tone, heart rate, and neuronal ON-/OFF-state lengths, all reverting to characteristic NREMS levels within the first recovery hour. Thus, prolonged waking seems to necessitate a physiological recalibration before typical NREMS can be reinstated. Changes in EEG delta-activity are widely used as proxy of sleep propensity. Here the authors demonstrate in mice and humans the presence of two types of delta-waves, only one of which reports on prior sleep-wake history with dynamics denoting a wake-inertia process accompanying deepest non-rapid-eye-movement sleep (NREM) sleep.
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29
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Dufort-Gervais J, Provost C, Charbonneau L, Norris CM, Calon F, Mongrain V, Brouillette J. Neuroligin-1 is altered in the hippocampus of Alzheimer's disease patients and mouse models, and modulates the toxicity of amyloid-beta oligomers. Sci Rep 2020; 10:6956. [PMID: 32332783 PMCID: PMC7181681 DOI: 10.1038/s41598-020-63255-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 03/27/2020] [Indexed: 12/19/2022] Open
Abstract
Synapse loss occurs early and correlates with cognitive decline in Alzheimer's disease (AD). Synaptotoxicity is driven, at least in part, by amyloid-beta oligomers (Aβo), but the exact synaptic components targeted by Aβo remain to be identified. We here tested the hypotheses that the post-synaptic protein Neuroligin-1 (NLGN1) is affected early in the process of neurodegeneration in the hippocampus, and specifically by Aβo, and that it can modulate Aβo toxicity. We found that hippocampal NLGN1 was decreased in patients with AD in comparison to patients with mild cognitive impairment and control subjects. Female 3xTg-AD mice also showed a decreased NLGN1 level in the hippocampus at an early age (i.e., 4 months). We observed that chronic hippocampal Aβo injections initially increased the expression of one specific Nlgn1 transcript, which was followed by a clear decrease. Lastly, the absence of NLGN1 decreased neuronal counts in the dentate gyrus, which was not the case in wild-type animals, and worsens impairment in spatial learning following chronic hippocampal Aβo injections. Our findings support that NLGN1 is impacted early during neurodegenerative processes, and that Aβo contributes to this effect. Moreover, our results suggest that the presence of NLGN1 favors the cognitive prognosis during Aβo-driven neurodegeneration.
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Affiliation(s)
- Julien Dufort-Gervais
- Department of Pharmacology and Physiology, Université de Montréal, Montréal, Québec, Canada
- Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Coeur de Montréal (Recherche CIUSSS-NIM), Montréal, Québec, Canada
| | - Chloé Provost
- Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Coeur de Montréal (Recherche CIUSSS-NIM), Montréal, Québec, Canada
| | | | - Christopher M Norris
- Department of Molecular and Biomedical Pharmacology, Sanders-Brown Center on Aging, University of Kentucky, Lexington, KY, USA
| | - Frédéric Calon
- Neuroscience Unit, Research Center - CHU de Québec, Québec, QC, Canada
- Faculty of Pharmacy, Université Laval, Québec, QC, Canada
| | - Valérie Mongrain
- Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Coeur de Montréal (Recherche CIUSSS-NIM), Montréal, Québec, Canada.
- Department of Neuroscience, Université de Montréal, Montréal, Québec, Canada.
| | - Jonathan Brouillette
- Department of Pharmacology and Physiology, Université de Montréal, Montréal, Québec, Canada.
- Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Coeur de Montréal (Recherche CIUSSS-NIM), Montréal, Québec, Canada.
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30
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Abstract
Sleep is a ubiquitous and complex behavior in both its manifestation and regulation. Despite its essential role in maintaining optimal performance, health, and well-being, the genetic mechanisms underlying sleep remain poorly understood. Here, we review the forward genetic approaches undertaken in the last four years to elucidate the genes and gene pathways affecting sleep and its regulation. Despite an increasing number of studies and mining large databases, a coherent picture on “sleep” genes has yet to emerge. We highlight the results achieved by using unbiased genetic screens mainly in humans, mice, and fruit flies with an emphasis on normal sleep and make reference to lessons learned from the circadian field.
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Affiliation(s)
- Maxime Jan
- Centre for Integrative Genomics, University of Lausanne, Lausanne, 1015, Switzerland
| | - Bruce F O'Hara
- Department of Biology, University of Kentucky, Lexington, 40515, USA
| | - Paul Franken
- Centre for Integrative Genomics, University of Lausanne, Lausanne, 1015, Switzerland
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31
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Chen W, Guo X, Jin Z, Li R, Shen L, Li W, Cai W, Zhang G. Transcriptional alterations of genes related to fertility decline in male rats induced by chronic sleep restriction. Syst Biol Reprod Med 2020; 66:99-111. [DOI: 10.1080/19396368.2019.1678694] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Wenyang Chen
- Hebei Provincial Key Laboratory of Neuropharmacology, Department of Pharmacy, Hebei North University, Zhangjiakou, China
- Research and Development Department, Peking Medriv Academy of Genetics and Reproduction, Peking, China
| | - Xingdao Guo
- Research and Development Department, Peking Medriv Academy of Genetics and Reproduction, Peking, China
| | - Zhiping Jin
- Research and Development Department, Peking Medriv Academy of Genetics and Reproduction, Peking, China
| | - Runan Li
- Hebei Provincial Key Laboratory of Neuropharmacology, Department of Pharmacy, Hebei North University, Zhangjiakou, China
- Research and Development Department, Peking Medriv Academy of Genetics and Reproduction, Peking, China
| | - Lixia Shen
- Hebei Provincial Key Laboratory of Neuropharmacology, Department of Pharmacy, Hebei North University, Zhangjiakou, China
| | - Wei Li
- Hebei Provincial Key Laboratory of Neuropharmacology, Department of Pharmacy, Hebei North University, Zhangjiakou, China
| | - Wangting Cai
- Research and Development Department, Peking Medriv Academy of Genetics and Reproduction, Peking, China
| | - Guirong Zhang
- Hebei Provincial Key Laboratory of Neuropharmacology, Department of Pharmacy, Hebei North University, Zhangjiakou, China
- Research and Development Department, Peking Medriv Academy of Genetics and Reproduction, Peking, China
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32
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A Pilot Study on Sleep Quality, Forgiveness, Religion, Spirituality, and General Health of Women Living in a Homeless Mission. Holist Nurs Pract 2020; 34:49-56. [DOI: 10.1097/hnp.0000000000000362] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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33
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Longitudinal transcriptome-wide gene expression analysis of sleep deprivation treatment shows involvement of circadian genes and immune pathways. Transl Psychiatry 2019; 9:343. [PMID: 31852885 PMCID: PMC6920477 DOI: 10.1038/s41398-019-0671-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 11/13/2019] [Accepted: 11/22/2019] [Indexed: 01/08/2023] Open
Abstract
Therapeutic sleep deprivation (SD) rapidly induces robust, transient antidepressant effects in a large proportion of major mood disorder patients suffering from a depressive episode, but underlying biological factors remain poorly understood. Research suggests that these patients may have altered circadian molecular genetic 'clocks' and that SD functions through 'resetting' dysregulated genes; additional factors may be involved, warranting further investigation. Leveraging advances in microarray technology enabling the transcriptome-wide assessment of gene expression, this study aimed to examine gene expression changes accompanying SD and recovery sleep in patients suffering from an episode of depression. Patients (N = 78) and controls (N = 15) underwent SD, with blood taken at the same time of day before SD, after one night of SD and after recovery sleep. A transcriptome-wide gene-by-gene approach was used, with a targeted look also taken at circadian genes. Furthermore, gene set enrichment, and longitudinal gene set analyses including the time point after recovery sleep, were conducted. Circadian genes were significantly affected by SD, with patterns suggesting that molecular clocks of responders and non-responders, as well as patients and controls respond differently to chronobiologic stimuli. Notably, gene set analyses revealed a strong widespread effect of SD on pathways involved in immune function and inflammatory response, such as those involved in cytokine and especially in interleukin signalling. Longitudinal gene set analyses showed that in responders these pathways were upregulated after SD; in non-responders, little response was observed. Our findings emphasize the close relationship between circadian, immune and sleep systems and their link to etiology of depression at the transcriptomic level.
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34
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Hor CN, Yeung J, Jan M, Emmenegger Y, Hubbard J, Xenarios I, Naef F, Franken P. Sleep-wake-driven and circadian contributions to daily rhythms in gene expression and chromatin accessibility in the murine cortex. Proc Natl Acad Sci U S A 2019; 116:25773-25783. [PMID: 31776259 PMCID: PMC6925978 DOI: 10.1073/pnas.1910590116] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The timing and duration of sleep results from the interaction between a homeostatic sleep-wake-driven process and a periodic circadian process, and involves changes in gene regulation and expression. Unraveling the contributions of both processes and their interaction to transcriptional and epigenomic regulatory dynamics requires sampling over time under conditions of unperturbed and perturbed sleep. We profiled mRNA expression and chromatin accessibility in the cerebral cortex of mice over a 3-d period, including a 6-h sleep deprivation (SD) on day 2. We used mathematical modeling to integrate time series of mRNA expression data with sleep-wake history, which established that a large proportion of rhythmic genes are governed by the homeostatic process with varying degrees of interaction with the circadian process, sometimes working in opposition. Remarkably, SD caused long-term effects on gene-expression dynamics, outlasting phenotypic recovery, most strikingly illustrated by a damped oscillation of most core clock genes, including Arntl/Bmal1, suggesting that enforced wakefulness directly impacts the molecular clock machinery. Chromatin accessibility proved highly plastic and dynamically affected by SD. Dynamics in distal regions, rather than promoters, correlated with mRNA expression, implying that changes in expression result from constitutively accessible promoters under the influence of enhancers or repressors. Serum response factor (SRF) was predicted as a transcriptional regulator driving immediate response, suggesting that SRF activity mirrors the build-up and release of sleep pressure. Our results demonstrate that a single, short SD has long-term aftereffects at the genomic regulatory level and highlights the importance of the sleep-wake distribution to diurnal rhythmicity and circadian processes.
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Affiliation(s)
- Charlotte N Hor
- Center for Integrative Genomics, Faculty of Biology and Medicine, University of Lausanne, CH-1015 Lausanne, Switzerland
| | - Jake Yeung
- Institute of Bioengineering, School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Maxime Jan
- Center for Integrative Genomics, Faculty of Biology and Medicine, University of Lausanne, CH-1015 Lausanne, Switzerland
- Vital-IT Systems Biology Division, Swiss Institute of Bioinformatics, CH-1015 Lausanne, Switzerland
| | - Yann Emmenegger
- Center for Integrative Genomics, Faculty of Biology and Medicine, University of Lausanne, CH-1015 Lausanne, Switzerland
| | - Jeffrey Hubbard
- Center for Integrative Genomics, Faculty of Biology and Medicine, University of Lausanne, CH-1015 Lausanne, Switzerland
| | - Ioannis Xenarios
- Center for Integrative Genomics, Faculty of Biology and Medicine, University of Lausanne, CH-1015 Lausanne, Switzerland
| | - Felix Naef
- Institute of Bioengineering, School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Paul Franken
- Center for Integrative Genomics, Faculty of Biology and Medicine, University of Lausanne, CH-1015 Lausanne, Switzerland;
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35
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Zielinski MR, Atochin DN, McNally JM, McKenna JT, Huang PL, Strecker RE, Gerashchenko D. Somatostatin+/nNOS+ neurons are involved in delta electroencephalogram activity and cortical-dependent recognition memory. Sleep 2019; 42:zsz143. [PMID: 31328777 PMCID: PMC6783898 DOI: 10.1093/sleep/zsz143] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 04/18/2019] [Indexed: 11/13/2022] Open
Abstract
Slow-wave activity (SWA) is an oscillatory neocortical activity occurring in the electroencephalogram delta (δ) frequency range (~0.5-4 Hz) during nonrapid eye movement sleep. SWA is a reliable indicator of sleep homeostasis after acute sleep loss and is involved in memory processes. Evidence suggests that cortical neuronal nitric oxide synthase (nNOS) expressing neurons that coexpress somatostatin (SST) play a key role in regulating SWA. However, previous studies lacked selectivity in targeting specific types of neurons that coexpress nNOS-cells which are activated in the cortex after sleep loss. We produced a mouse model that knocks out nNOS expression in neurons that coexpress SST throughout the cortex. Mice lacking nNOS expression in SST positive neurons exhibited significant impairments in both homeostatic low-δ frequency range SWA production and a recognition memory task that relies on cortical input. These results highlight that SST+/nNOS+ neurons are involved in the SWA homeostatic response and cortex-dependent recognition memory.
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Affiliation(s)
- Mark R Zielinski
- Veterans Affairs Boston Healthcare System, West Roxbury, MA
- Department of Psychiatry, Harvard Medical School, West Roxbury, MA
| | - Dmitriy N Atochin
- Cardiovascular Research Center, Massachusetts General Hospital, Charlestown, MA
| | - James M McNally
- Veterans Affairs Boston Healthcare System, West Roxbury, MA
- Department of Psychiatry, Harvard Medical School, West Roxbury, MA
| | - James T McKenna
- Veterans Affairs Boston Healthcare System, West Roxbury, MA
- Department of Psychiatry, Harvard Medical School, West Roxbury, MA
| | - Paul L Huang
- Cardiovascular Research Center, Massachusetts General Hospital, Charlestown, MA
| | - Robert E Strecker
- Veterans Affairs Boston Healthcare System, West Roxbury, MA
- Department of Psychiatry, Harvard Medical School, West Roxbury, MA
| | - Dmitry Gerashchenko
- Veterans Affairs Boston Healthcare System, West Roxbury, MA
- Department of Psychiatry, Harvard Medical School, West Roxbury, MA
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36
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Ämmälä AJ, Urrila AS, Lahtinen A, Santangeli O, Hakkarainen A, Kantojärvi K, Castaneda AE, Lundbom N, Marttunen M, Paunio T. Epigenetic dysregulation of genes related to synaptic long-term depression among adolescents with depressive disorder and sleep symptoms. Sleep Med 2019; 61:95-103. [DOI: 10.1016/j.sleep.2019.01.050] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 01/18/2019] [Accepted: 01/23/2019] [Indexed: 12/14/2022]
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37
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Meng S, Zhou H, Feng Z, Xu Z, Tang Y, Wu M. Epigenetics in Neurodevelopment: Emerging Role of Circular RNA. Front Cell Neurosci 2019; 13:327. [PMID: 31379511 PMCID: PMC6658887 DOI: 10.3389/fncel.2019.00327] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 07/03/2019] [Indexed: 01/16/2023] Open
Abstract
Canonical epigenetic modifications, including DNA methylation, histone modification and chromatin remodeling, play a role in numerous life processes, particularly neurodevelopment. Epigenetics explains the development of cells in an organism with the same DNA sequence into different cell types with various functions. However, previous studies on epigenetics have only focused on the chromatin level. Recently, epigenetic modifications of RNA, which mainly include 6-methyladenosine (m6A), pseudouridine, 5-methylcytidine (m5C), inosine (I), 2′-O-ribosemethylation, and 1-methyladenosine (m1A), have gained increasing attention. Circular RNAs (circRNAs), which are a type of non-coding RNA without a 5′ cap or 3′ poly (A) tail, are abundantly found in the brain and might respond to and regulate synaptic function. Also, circRNAs have various functions, such as microRNA sponge, regulation of gene transcription and interaction with RNA binding protein. In addition, circRNAs are methylated by N6-methyladenosine (m6A). In this review, we discuss the crucial roles of epigenetic modifications of circRNAs, such as m6A, in the genesis and development of neurons and in synaptic function and plasticity. Thus, this type of changes in circRNAs might be a therapeutic target in central nervous system (CNS) disorders and could aid the diagnosis and treatment of these disorders.
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Affiliation(s)
- Shujuan Meng
- Hunan Provincial Tumor Hospital, The Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, China.,Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha, China.,Key Laboratory of Carcinogenesis, Ministry of Health, Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha, China
| | - Hecheng Zhou
- Hunan Provincial Tumor Hospital, The Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, China.,Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha, China.,Key Laboratory of Carcinogenesis, Ministry of Health, Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha, China
| | - Ziyang Feng
- Hunan Provincial Tumor Hospital, The Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, China.,Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha, China.,Key Laboratory of Carcinogenesis, Ministry of Health, Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha, China
| | - Zihao Xu
- Hunan Provincial Tumor Hospital, The Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, China.,Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha, China.,Key Laboratory of Carcinogenesis, Ministry of Health, Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha, China
| | - Ying Tang
- Hunan Provincial Tumor Hospital, The Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, China.,Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha, China.,Key Laboratory of Carcinogenesis, Ministry of Health, Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha, China
| | - Minghua Wu
- Hunan Provincial Tumor Hospital, The Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, China.,Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha, China.,Key Laboratory of Carcinogenesis, Ministry of Health, Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha, China
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38
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Hannou L, Bélanger-Nelson E, O'Callaghan EK, Dufort-Gervais J, Ballester Roig MN, Roy PG, Beaulieu JM, Cermakian N, Mongrain V. Regulation of the Neuroligin-1 Gene by Clock Transcription Factors. J Biol Rhythms 2019; 33:166-178. [PMID: 29671709 DOI: 10.1177/0748730418761236] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
NEUROLIGIN-1 (NLGN1) is a postsynaptic adhesion molecule involved in the regulation of glutamatergic transmission. It has been associated with several features of sleep and psychiatric disorders. Our previous work suggested that transcription of the Nlgn1 gene could be regulated by the transcription factors CLOCK and BMAL1 because they bind to the Nlgn1 gene promoter in vivo. However, whether CLOCK/BMAL1 can directly activate Nlgn1 transcription is not yet known. We thus aimed to verify whether CLOCK/BMAL1, as well as their homologs NPAS2 and BMAL2, can activate transcription via the Nlgn1 promoter by using luciferase assays in COS-7 cells. We also investigated how Nlgn1 expression was affected in Clock mutant mice. Our results show transcriptional activation in vitro mediated by CLOCK/BMAL1 and by combinations with their homologs NPAS2 and BMAL2. Moreover, CLOCK/BMAL1 activation via the Nlgn1 gene fragment was repressed by GSK3β. In vivo, Nlgn1 mRNA expression was significantly modified in the forebrain of Clock mutant mice in a transcript variant-dependent manner. However, no significant change in NLGN1 protein level was observed in Clock mutant mice. These findings will increase knowledge about the transcriptional regulation of Nlgn1 and the relationship between circadian rhythms, mental health, and sleep.
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Affiliation(s)
- Lydia Hannou
- Department of Psychiatry, Université de Montréal, Montreal, Quebec, Canada.,Center for Advanced Research in Sleep Medicine and Research Center, Hôpital du Sacré-Cœur de Montréal, Montreal, Quebec, Canada
| | - Erika Bélanger-Nelson
- Center for Advanced Research in Sleep Medicine and Research Center, Hôpital du Sacré-Cœur de Montréal, Montreal, Quebec, Canada
| | - Emma K O'Callaghan
- Center for Advanced Research in Sleep Medicine and Research Center, Hôpital du Sacré-Cœur de Montréal, Montreal, Quebec, Canada.,Department of Neuroscience, Université de Montréal, Montreal, Quebec, Canada
| | - Julien Dufort-Gervais
- Center for Advanced Research in Sleep Medicine and Research Center, Hôpital du Sacré-Cœur de Montréal, Montreal, Quebec, Canada.,Department of Pharmacology and Physiology, Université de Montréal, Montreal, Quebec, Canada
| | - Maria Neus Ballester Roig
- Center for Advanced Research in Sleep Medicine and Research Center, Hôpital du Sacré-Cœur de Montréal, Montreal, Quebec, Canada.,Department of Neuroscience, Université de Montréal, Montreal, Quebec, Canada
| | - Pierre-Gabriel Roy
- Center for Advanced Research in Sleep Medicine and Research Center, Hôpital du Sacré-Cœur de Montréal, Montreal, Quebec, Canada.,Department of Neuroscience, Université de Montréal, Montreal, Quebec, Canada
| | - Jean-Martin Beaulieu
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada
| | - Nicolas Cermakian
- Douglas Mental Health University Institute and Department of Psychiatry, McGill University, Montreal, Quebec, Canada
| | - Valérie Mongrain
- Center for Advanced Research in Sleep Medicine and Research Center, Hôpital du Sacré-Cœur de Montréal, Montreal, Quebec, Canada.,Department of Neuroscience, Université de Montréal, Montreal, Quebec, Canada
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39
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Dufort-Gervais J, Mongrain V, Brouillette J. Bidirectional relationships between sleep and amyloid-beta in the hippocampus. Neurobiol Learn Mem 2019; 160:108-117. [DOI: 10.1016/j.nlm.2018.06.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 05/18/2018] [Accepted: 06/14/2018] [Indexed: 12/17/2022]
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40
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Tucci V, Isles AR, Kelsey G, Ferguson-Smith AC. Genomic Imprinting and Physiological Processes in Mammals. Cell 2019; 176:952-965. [PMID: 30794780 DOI: 10.1016/j.cell.2019.01.043] [Citation(s) in RCA: 307] [Impact Index Per Article: 61.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 01/08/2019] [Accepted: 01/24/2019] [Indexed: 12/22/2022]
Abstract
Complex multicellular organisms, such as mammals, express two complete sets of chromosomes per nucleus, combining the genetic material of both parents. However, epigenetic studies have demonstrated violations to this rule that are necessary for mammalian physiology; the most notable parental allele expression phenomenon is genomic imprinting. With the identification of endogenous imprinted genes, genomic imprinting became well-established as an epigenetic mechanism in which the expression pattern of a parental allele influences phenotypic expression. The expanding study of genomic imprinting is revealing a significant impact on brain functions and associated diseases. Here, we review key milestones in the field of imprinting and discuss mechanisms and systems in which imprinted genes exert a significant role.
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Affiliation(s)
- Valter Tucci
- Department of Neuroscience and Brain Technologies - Istituto Italiano di Tecnologia, via Morego, 30, 16163, Genova, Italy.
| | - Anthony R Isles
- MRC Centre for Neuropsychiatric Genetics and Genomics, School of Medicine, Cardiff University, Cardiff, CF24 44H, UK
| | - Gavin Kelsey
- Epigenetics Programme, Babraham Institute, Cambridge, CB22 3AT, UK; Centre for Trophoblast Research, University of Cambridge, Cambridge, CB2 3EG, UK
| | - Anne C Ferguson-Smith
- Department of Genetics, University of Cambridge, Downing Street, Cambridge CB2 3EH, UK
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41
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Lahtinen A, Puttonen S, Vanttola P, Viitasalo K, Sulkava S, Pervjakova N, Joensuu A, Salo P, Toivola A, Härmä M, Milani L, Perola M, Paunio T. A distinctive DNA methylation pattern in insufficient sleep. Sci Rep 2019; 9:1193. [PMID: 30718923 PMCID: PMC6362278 DOI: 10.1038/s41598-018-38009-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 12/17/2018] [Indexed: 12/11/2022] Open
Abstract
Short sleep duration or insomnia may lead to an increased risk of various psychiatric and cardio-metabolic conditions. Since DNA methylation plays a critical role in the regulation of gene expression, studies of differentially methylated positions (DMPs) might be valuable for understanding the mechanisms underlying insomnia. We performed a cross-sectional genome-wide analysis of DNA methylation in relation to self-reported insufficient sleep in individuals from a community-based sample (79 men, aged 39.3 ± 7.3), and in relation to shift work disorder in an occupational cohort (26 men, aged 44.9 ± 9.0). The analysis of DNA methylation data revealed that genes corresponding to selected DMPs form a distinctive pathway: "Nervous System Development" (FDR P value < 0.05). We found that 78% of the DMPs were hypomethylated in cases in both cohorts, suggesting that insufficient sleep may be associated with loss of DNA methylation. A karyoplot revealed clusters of DMPs at various chromosomal regions, including 12 DMPs on chromosome 17, previously associated with Smith-Magenis syndrome, a rare condition comprising disturbed sleep and inverse circadian rhythm. Our findings give novel insights into the DNA methylation patterns associated with sleep loss, possibly modifying processes related to neuroplasticity and neurodegeneration. Future prospective studies are needed to confirm the observed associations.
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Affiliation(s)
- Alexandra Lahtinen
- Department of Public Health Solutions, Genomics and Biomarkers Unit, National Institute for Health and Welfare, PO Box 30, FI-00271, Helsinki, Finland.
- Department of Psychiatry, University of Helsinki and Helsinki University Central Hospital, PO Box 590, FIN-00029, HUS, Helsinki, Finland.
| | - Sampsa Puttonen
- Work Ability and Working Career, Finnish Institute of Occupational Health, PO Box 40, FI-00032, Työterveyslaitos, Helsinki, Finland
| | - Päivi Vanttola
- Work Ability and Working Career, Finnish Institute of Occupational Health, PO Box 40, FI-00032, Työterveyslaitos, Helsinki, Finland
| | | | - Sonja Sulkava
- Department of Public Health Solutions, Genomics and Biomarkers Unit, National Institute for Health and Welfare, PO Box 30, FI-00271, Helsinki, Finland
- Department of Psychiatry, University of Helsinki and Helsinki University Central Hospital, PO Box 590, FIN-00029, HUS, Helsinki, Finland
| | - Natalia Pervjakova
- Estonian Genome Center, Institute of Genomics, University of Tartu, Tartu, 51010, Estonia
| | - Anni Joensuu
- Department of Public Health Solutions, Genomics and Biomarkers Unit, National Institute for Health and Welfare, PO Box 30, FI-00271, Helsinki, Finland
- Diabetes and Obesity Research Program, University of Helsinki, PO Box 63, FI-00014, Helsinki, Finland
| | - Perttu Salo
- Department of Public Health Solutions, Genomics and Biomarkers Unit, National Institute for Health and Welfare, PO Box 30, FI-00271, Helsinki, Finland
| | - Auli Toivola
- Department of Public Health Solutions, Genomics and Biomarkers Unit, National Institute for Health and Welfare, PO Box 30, FI-00271, Helsinki, Finland
| | - Mikko Härmä
- Work Ability and Working Career, Finnish Institute of Occupational Health, PO Box 40, FI-00032, Työterveyslaitos, Helsinki, Finland
| | - Lili Milani
- Estonian Genome Center, Institute of Genomics, University of Tartu, Tartu, 51010, Estonia
| | - Markus Perola
- Department of Public Health Solutions, Genomics and Biomarkers Unit, National Institute for Health and Welfare, PO Box 30, FI-00271, Helsinki, Finland
- Diabetes and Obesity Research Program, University of Helsinki, PO Box 63, FI-00014, Helsinki, Finland
| | - Tiina Paunio
- Department of Public Health Solutions, Genomics and Biomarkers Unit, National Institute for Health and Welfare, PO Box 30, FI-00271, Helsinki, Finland.
- Department of Psychiatry, University of Helsinki and Helsinki University Central Hospital, PO Box 590, FIN-00029, HUS, Helsinki, Finland.
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42
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Singh K, Jha NK, Thakur A. Spatiotemporal chromatin dynamics - A telltale of circadian epigenetic gene regulation. Life Sci 2019; 221:377-391. [PMID: 30721705 DOI: 10.1016/j.lfs.2019.02.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Revised: 01/27/2019] [Accepted: 02/01/2019] [Indexed: 01/08/2023]
Abstract
Over the course of evolution, nature has forced organisms under selection pressure to hardwire an internal time keeping device that defines 24 h of a daily cycle of physiological and behavioral rhythms, known as circadian rhythms. At the cellular level, the cycle is governed by significant fractions of transcriptomes, which are under the control of transcriptional and translational feedback loop of clock genes. Intriguingly, this feedback loop is regulated at multiple stratums such as at the transcriptional and translational levels, which direct a cell towards producing a robust rhythm by sustaining the repeated stoichiometry of protein products. Moreover, with the advent of state of the art paradigms, epigenetic regulation of circadian rhythms has been becoming more evident at present time. Light-induced recurring fluctuations in chromatin acetylation concurrent with the binding of RNA Pol II and integration of miRNAs monitor the chromatin modifiers or clock genes expression to drive temporal rhythmicity. Furthermore, CLOCK protein intrinsic histone acetyl transferase activity, the interaction of CLOCK-BMAL-1 with HAT enzymes, and the involvement of many histone deacetylases also maintain the rhythmic protein profile. Additionally, the critical role of the rhythmic methylation pattern of clock genes in battery of cancer and metabolic disorders also defines its importance. Therefore, in this review, we focused on accumulating all the present data available on epigenetics and circadian rhythms. Interestingly, we also gathered evidence from the available literature pinpointing towards the dynamic nature of chromatin architecture governed by long and short-range regulatory elements DNA contacts arising daily, that was thought to be steady otherwise.
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Affiliation(s)
- Kunal Singh
- Department of Biotechnology, Noida Institute of Engineering & Technology (NIET), Greater Noida, India.
| | - Niraj Kumar Jha
- Department of Biotechnology, Noida Institute of Engineering & Technology (NIET), Greater Noida, India
| | - Abhimanyu Thakur
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, India
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43
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Fuller PM, Eikermann M. Genomic consequences of sleep restriction: the devil is in the details. Anaesthesia 2019; 74:417-419. [PMID: 30383307 DOI: 10.1111/anae.14479] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/24/2018] [Indexed: 11/28/2022]
Affiliation(s)
- P M Fuller
- Department of Neurology, Beth Israel Deaconess Medical Center, Boston, MA, USA.,Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - M Eikermann
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA
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44
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Liu H, Chen A. Roles of sleep deprivation in cardiovascular dysfunctions. Life Sci 2019; 219:231-237. [PMID: 30630005 DOI: 10.1016/j.lfs.2019.01.006] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 12/14/2018] [Accepted: 01/06/2019] [Indexed: 01/09/2023]
Abstract
It is widely recognized that inadequate sleep is associated with multiple acute and chronic diseases and results in increased mortality and morbidity for cardiovascular diseases. In recent years, there has been increasing interest in sleep related investigations. Emerging evidence indicates that sleep deprivation changes the biological phenotypes of DNA, RNA and protein levels, but the underlying mechanisms are not clear. We summarized the current research on the detrimental roles of sleep deprivation on the heart and elucidated the underlying mechanisms of sleep deficiency to improve our understanding of sleep deprivation and the emerging strategies to target this process for therapeutic benefit.
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Affiliation(s)
- Haiqiong Liu
- Department of Cardiology, Heart Center, Zhujiang Hospital, Southern Medical University, NO. 253, Gongye Avenue, 510282 Guangzhou, China; Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, NO. 253, Gongye Avenue, 510282 Guangzhou, China; Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, China; Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, NO. 253, Gongye Avenue, 510282 Guangzhou, China
| | - Aihua Chen
- Department of Cardiology, Heart Center, Zhujiang Hospital, Southern Medical University, NO. 253, Gongye Avenue, 510282 Guangzhou, China; Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, NO. 253, Gongye Avenue, 510282 Guangzhou, China; Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, China; Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, NO. 253, Gongye Avenue, 510282 Guangzhou, China.
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45
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Hinojosa-Godinez A, Jave-Suarez LF, Flores-Soto M, Gálvez-Contreras AY, Luquín S, Oregon-Romero E, González-Pérez O, González-Castañeda RE. Melatonin modifies SOX2 + cell proliferation in dentate gyrus and modulates SIRT1 and MECP2 in long-term sleep deprivation. Neural Regen Res 2019; 14:1787-1795. [PMID: 31169197 PMCID: PMC6585545 DOI: 10.4103/1673-5374.257537] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Melatonin is a pleiotropic molecule that, after a short-term sleep deprivation, promotes the proliferation of neural stem cells in the adult hippocampus. However, this effect has not been observed in long-term sleep deprivation. The precise mechanism exerted by melatonin on the modulation of neural stem cells is not entirely elucidated, but evidence indicates that epigenetic regulators may be involved in this process. In this study, we investigated the effect of melatonin treatment during a 96-hour sleep deprivation and analyzed the expression of epigenetic modulators predicted by computational text mining and keyword clusterization. Our results showed that the administration of melatonin under sleep-deprived conditions increased the MECP2 expression and reduced the SIRT1 expression in the dentate gyrus. We observed that let-7b, mir-132, and mir-124 were highly expressed in the dentate gyrus after melatonin administration, but they were not modified by sleep deprivation. In addition, we found more Sox2+/5-bromo-2′-deoxyuridine (BrdU)+ cells in the subgranular zone of the sleep-deprived group treated with melatonin than in the untreated group. These findings may support the notion that melatonin modifies the expression of epigenetic mediators that, in turn, regulate the proliferation of neural progenitor cells in the adult dentate gyrus under long-term sleep-deprived conditions. All procedures performed in this study were approved by the Animal Ethics Committee of the University of Guadalajara, Mexico (approval No. CI-16610) on January 2, 2016.
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Affiliation(s)
- Alan Hinojosa-Godinez
- Laboratorio de Microscopía de Alta Resolución, Departamento de Neurociencias, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, México
| | - Luis F Jave-Suarez
- División de Inmunología, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, México
| | - Mario Flores-Soto
- División de Neurociencias, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, México
| | - Alma Y Gálvez-Contreras
- Laboratorio de Microscopía de Alta Resolución, Departamento de Neurociencias; Unidad de Atención en Neurociencias, Departamento de Neurociencias, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, México
| | - Sonia Luquín
- Laboratorio de Microscopía de Alta Resolución, Departamento de Neurociencias, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, México
| | - Edith Oregon-Romero
- Instituto de Investigación en Ciencias Biomédicas (IICB), Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, México
| | - Oscar González-Pérez
- Laboratorio de Neurociencias, Facultad de Psicología, Universidad de Colima, Colima, México
| | - Rocio E González-Castañeda
- Laboratorio de Microscopía de Alta Resolución, Departamento de Neurociencias; Unidad de Atención en Neurociencias, Departamento de Neurociencias, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, México
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46
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Response to therapeutic sleep deprivation: a naturalistic study of clinical and genetic factors and post-treatment depressive symptom trajectory. Neuropsychopharmacology 2018; 43:2572-2577. [PMID: 29872112 PMCID: PMC6224527 DOI: 10.1038/s41386-018-0092-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 03/28/2018] [Accepted: 05/08/2018] [Indexed: 12/12/2022]
Abstract
Research has shown that therapeutic sleep deprivation (SD) has rapid antidepressant effects in the majority of depressed patients. Investigation of factors preceding and accompanying these effects may facilitate the identification of the underlying biological mechanisms. This exploratory study aimed to examine clinical and genetic factors predicting response to SD and determine the impact of SD on illness course. Mood during SD was also assessed via visual analogue scale. Depressed inpatients (n = 78) and healthy controls (n = 15) underwent ~36 h of SD. Response to SD was defined as a score of ≤ 2 on the Clinical Global Impression Scale for Global Improvement. Depressive symptom trajectories were evaluated for up to a month using self/expert ratings. Impact of genetic burden was calculated using polygenic risk scores for major depressive disorder. In total, 72% of patients responded to SD. Responders and non-responders did not differ in baseline self/expert depression symptom ratings, but mood differed. Response was associated with lower age (p = 0.007) and later age at life-time disease onset (p = 0.003). Higher genetic burden of depression was observed in non-responders than healthy controls. Up to a month post SD, depressive symptoms decreased in both patients groups, but more in responders, in whom effects were sustained. The present findings suggest that re-examining SD with a greater focus on biological mechanisms will lead to better understanding of mechanisms of depression.
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Prolonged Waking and Recovery Sleep Affect the Serum MicroRNA Expression Profile in Humans. Clocks Sleep 2018; 1:75-86. [PMID: 33089155 PMCID: PMC7509676 DOI: 10.3390/clockssleep1010008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 11/20/2018] [Indexed: 01/28/2023] Open
Abstract
MicroRNAs (miRNAs) are small, abundant, non-coding RNA fragments that regulate gene expression and silencing at the post-transcriptional level. The miRNAs each control various downstream targets and play established roles in different biological processes. Given that miRNAs were recently proposed to contribute to the molecular control of sleep-wake regulation in animal models and narcoleptic patients, we investigated the impact of acute sleep deprivation on blood miRNA expression in healthy adult men of two different age groups. Twenty-two young (mean age: 24 ± 3 years) and nine older (65 ± 1 years) volunteers completed a controlled in-lab study, consisting of 8 h baseline sleep, followed by 40 h of extended wakefulness, and a 10-h recovery sleep opportunity. At the same circadian time in all three conditions (at 4:23 p.m. ± 23 min), qPCR expression profiling of 86 miRNAs was performed in blood serum. Thirteen different miRNAs could be reliably quantified and were analyzed using mixed-model ANOVAs. It was found that miR-30c and miR-127 were reliably affected by previous sleep and wakefulness, such that expression of these miRNAs was upregulated after extended wakefulness and normalized after recovery sleep. Together with previous findings in narcolepsy patients, our preliminary data indicate that miR-30c and its target proteins may provide a biomarker of elevated sleep debt in humans.
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Vorster AP, Born J. Wakefulness rather than sleep benefits extinction of an inhibitory operant conditioning memory in Aplysia. Neurobiol Learn Mem 2018; 155:306-312. [DOI: 10.1016/j.nlm.2018.07.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Revised: 04/20/2018] [Accepted: 07/27/2018] [Indexed: 01/16/2023]
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Lina JM, O’Callaghan EK, Mongrain V. Scale-Free Dynamics of the Mouse Wakefulness and Sleep Electroencephalogram Quantified Using Wavelet-Leaders. Clocks Sleep 2018; 1:50-64. [PMID: 33089154 PMCID: PMC7509677 DOI: 10.3390/clockssleep1010006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 10/11/2018] [Indexed: 11/16/2022] Open
Abstract
Scale-free analysis of brain activity reveals a complexity of synchronous neuronal firing which is different from that assessed using classic rhythmic quantifications such as spectral analysis of the electroencephalogram (EEG). In humans, scale-free activity of the EEG depends on the behavioral state and reflects cognitive processes. We aimed to verify if fractal patterns of the mouse EEG also show variations with behavioral states and topography, and to identify molecular determinants of brain scale-free activity using the ‘multifractal formalism’ (Wavelet-Leaders). We found that scale-free activity was more anti-persistent (i.e., more different between time scales) during wakefulness, less anti-persistent (i.e., less different between time scales) during non-rapid eye movement sleep, and generally intermediate during rapid eye movement sleep. The scale-invariance of the frontal/motor cerebral cortex was generally more anti-persistent than that of the posterior cortex, and scale-invariance during wakefulness was strongly modulated by time of day and the absence of the synaptic protein Neuroligin-1. Our results expose that the complexity of the scale-free pattern of organized neuronal firing depends on behavioral state in mice, and that patterns expressed during wakefulness are modulated by one synaptic component.
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Affiliation(s)
- Jean-Marc Lina
- Research Centre and Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Coeur de Montréal (CIUSSS-NIM), 5400 Gouin West blvd., Montreal, QC H4J 1C5, Canada
- Centre de Recherches Mathématiques, Université de Montréal, C.P. 6128, succ. Centre-Ville, Montreal, QC H3C 3J7, Canada
- École de Technologie Supérieure, 1100 rue Notre-Dame Ouest, Montreal, QC H3C 1K3, Canada
| | - Emma Kate O’Callaghan
- Research Centre and Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Coeur de Montréal (CIUSSS-NIM), 5400 Gouin West blvd., Montreal, QC H4J 1C5, Canada
- Department of Neuroscience, Université de Montréal, C.P. 6128, succ. Centre-Ville, Montreal, QC H3C 3J7, Canada
| | - Valérie Mongrain
- Research Centre and Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Coeur de Montréal (CIUSSS-NIM), 5400 Gouin West blvd., Montreal, QC H4J 1C5, Canada
- Department of Neuroscience, Université de Montréal, C.P. 6128, succ. Centre-Ville, Montreal, QC H3C 3J7, Canada
- Correspondence: ; Tel.: +1-514-338-2222 (ext. 3323)
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Seok BS, Cao F, Bélanger-Nelson E, Provost C, Gibbs S, Jia Z, Mongrain V. The effect of Neuroligin-2 absence on sleep architecture and electroencephalographic activity in mice. Mol Brain 2018; 11:52. [PMID: 30231918 PMCID: PMC6146600 DOI: 10.1186/s13041-018-0394-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 09/06/2018] [Indexed: 02/06/2023] Open
Abstract
Sleep disorders are comorbid with most psychiatric disorders, but the link between these is not well understood. Neuroligin-2 (NLGN2) is a cell adhesion molecule that plays roles in synapse formation and neurotransmission. Moreover, NLGN2 has been associated with psychiatric disorders, but its implication in sleep remains underexplored. In the present study, the effect of Nlgn2 knockout (Nlgn2−/−) on sleep architecture and electroencephalographic (EEG) activity in mice has been investigated. The EEG and electromyogram (EMG) were recorded in Nlgn2−/− mice and littermates for 24 h from which three vigilance states (i.e., wakefulness, rapid eye movement [REM] sleep, non-REM [NREM] sleep) were visually identified. Spectral analysis of the EEG was performed for the three states. Nlgn2−/− mice showed more wakefulness and less NREM and REM sleep compared to wild-type (Nlgn2+/+) mice, especially during the dark period. This was accompanied by changes in the number and duration of individual episodes of wakefulness and sleep, indexing changes in state consolidation, as well as widespread changes in EEG spectral activity in all states. Abnormal ‘hypersynchronized’ EEG events have also been observed predominantly in Nlgn2−/− mice. These events were mainly observed during wakefulness and REM sleep. In addition, Nlgn2−/− mice showed alterations in the daily time course of NREM sleep delta (1–4 Hz) activity, pointing to modifications in the dynamics of sleep homeostasis. These data suggest that NLGN2 participates in the regulation of sleep duration as well as EEG activity during wakefulness and sleep.
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Affiliation(s)
- Bong Soo Seok
- Research Center and Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal (CIUSSS-NIM), 5400 Gouin West blvd, Montréal, QC, H4J 1C5, Canada.,Department of Neuroscience, Université de Montréal, 2960 chemin de la Tour, Montreal, QC, H3T 1J4, Canada
| | | | - Erika Bélanger-Nelson
- Research Center and Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal (CIUSSS-NIM), 5400 Gouin West blvd, Montréal, QC, H4J 1C5, Canada
| | - Chloé Provost
- Research Center and Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal (CIUSSS-NIM), 5400 Gouin West blvd, Montréal, QC, H4J 1C5, Canada
| | - Steve Gibbs
- Research Center and Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal (CIUSSS-NIM), 5400 Gouin West blvd, Montréal, QC, H4J 1C5, Canada.,Department of Neuroscience, Université de Montréal, 2960 chemin de la Tour, Montreal, QC, H3T 1J4, Canada
| | | | - Valérie Mongrain
- Research Center and Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal (CIUSSS-NIM), 5400 Gouin West blvd, Montréal, QC, H4J 1C5, Canada. .,Department of Neuroscience, Université de Montréal, 2960 chemin de la Tour, Montreal, QC, H3T 1J4, Canada.
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