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de Vivo L, Bellesi M. The role of sleep and wakefulness in myelin plasticity. Glia 2019; 67:2142-2152. [PMID: 31237382 PMCID: PMC6771952 DOI: 10.1002/glia.23667] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 06/07/2019] [Accepted: 06/11/2019] [Indexed: 12/17/2022]
Abstract
Myelin plasticity is gaining increasing recognition as an essential partner to synaptic plasticity, which mediates experience-dependent brain structure and function. However, how neural activity induces adaptive myelination and which mechanisms are involved remain open questions. More than two decades of transcriptomic studies in rodents have revealed that hundreds of brain transcripts change their expression in relation to the sleep-wake cycle. These studies consistently report upregulation of myelin-related genes during sleep, suggesting that sleep represents a window of opportunity during which myelination occurs. In this review, we summarize recent molecular and morphological studies detailing the dependence of myelin dynamics after sleep, wake, and chronic sleep loss, a condition that can affect myelin substantially. We present novel data about the effects of sleep loss on the node of Ranvier length and provide a hypothetical mechanism through which myelin changes in response to sleep loss. Finally, we discuss the current findings in humans, which appear to confirm the important role of sleep in promoting white matter integrity.
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Affiliation(s)
- Luisa de Vivo
- School of Physiology, Pharmacology and NeuroscienceUniversity of BristolBristolUK
| | - Michele Bellesi
- School of Physiology, Pharmacology and NeuroscienceUniversity of BristolBristolUK
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52
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The Effect of REM Sleep Deprivation on mTOR Signaling-Induced by Severe Physical Exercise. ARCHIVES OF NEUROSCIENCE 2019. [DOI: 10.5812/ans.92002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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53
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Bower JE, Kuhlman KR, Haydon MD, Boyle CC, Radin A. Cultivating a healthy neuro‐immune network: A health psychology approach. SOCIAL AND PERSONALITY PSYCHOLOGY COMPASS 2019; 13. [PMID: 37008404 PMCID: PMC10062207 DOI: 10.1111/spc3.12498] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The field of psychoneuroimmunology (PNI) examines interactions among psychological and behavioral states, the brain, and the immune system. Research in PNI has elegantly documented effects of stress at multiple levels of the neuro-immune network, with profound implications for both physical and mental health. In this review, we consider how the neuro-immune network might be influenced by "positive" psychological and behavioral states, focusing on positive affect, eudaimonic well-being, physical activity, and sleep. There is compelling evidence that these positive states and behaviors are associated with changes in immune activity in the body, including reductions in peripheral inflammatory processes relevant for physical health. Growing evidence from animal models also suggests effects of positive states on immune cells in the brain and the blood-brain barrier, which then impact critical aspects of mood, cognition, and behavior. Tremendous advances are being made in our understanding of neuro-immune dynamics; one of the central goals of this review is to highlight recent preclinical research in this area and consider how we can leverage these findings to investigate and cultivate a healthy neuro-immune network in humans.
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Affiliation(s)
| | - Kate R. Kuhlman
- University of California Los Angeles
- University of California Irvine
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Zhang R, Liu Y, Chen Y, Li Q, Marshall C, Wu T, Hu G, Xiao M. Aquaporin 4 deletion exacerbates brain impairments in a mouse model of chronic sleep disruption. CNS Neurosci Ther 2019; 26:228-239. [PMID: 31364823 PMCID: PMC6978250 DOI: 10.1111/cns.13194] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 06/20/2019] [Accepted: 06/26/2019] [Indexed: 12/24/2022] Open
Abstract
AIMS As a normal physiological process, sleep has recently been shown to facilitate clearance of macromolecular metabolic wastes from the brain via the glymphatic system. The aim of the present study was to investigate pathophysiological roles of astroglial aquaporin 4 (AQP4), a functional regulator of glymphatic clearance, in a mouse model of chronic sleep disruption (SD). METHODS Adult AQP4 null mice and wild-type (WT) mice were given 7 days of SD using the improved rotating rod method, and then received behavioral, neuropathological, and neurochemical analyses. RESULTS Aquaporin 4 deletion resulted in an impairment of glymphatic transport and accumulation of β-amyloid and Tau proteins in the brain following SD. AQP4 null SD mice exhibited severe activation of microglia, neuroinflammation, and synaptic protein loss in the hippocampus, as well as decreased working memory, compared with WT-SD mice. CONCLUSION These results demonstrate that AQP4-mediated glymphatic clearance ameliorates brain impairments caused by abnormal accumulation of metabolic wastes following chronic SD, thus serving as a potential target for sleep-related disorders.
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Affiliation(s)
- Rui Zhang
- Department of Neurology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Jiangsu Province, Key Laboratory of Neurodegeneration, Nanjing Medical University, Nanjing, China
| | - Yun Liu
- Department of Neurology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Jiangsu Province, Key Laboratory of Neurodegeneration, Nanjing Medical University, Nanjing, China
| | - Yan Chen
- Jiangsu Province, Key Laboratory of Neurodegeneration, Nanjing Medical University, Nanjing, China.,Brain Institute, the Affiliated Nanjing Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Qian Li
- Jiangsu Province, Key Laboratory of Neurodegeneration, Nanjing Medical University, Nanjing, China.,Brain Institute, the Affiliated Nanjing Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Charles Marshall
- Department of Rehabilitation Sciences, University of Kentucky Center of Excellence in Rural Health, Hazard, KY, USA
| | - Ting Wu
- Department of Neurology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Jiangsu Province, Key Laboratory of Neurodegeneration, Nanjing Medical University, Nanjing, China
| | - Gang Hu
- Jiangsu Province, Key Laboratory of Neurodegeneration, Nanjing Medical University, Nanjing, China
| | - Ming Xiao
- Jiangsu Province, Key Laboratory of Neurodegeneration, Nanjing Medical University, Nanjing, China.,Brain Institute, the Affiliated Nanjing Brain Hospital of Nanjing Medical University, Nanjing, China
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Sleep deprivation alters neutrophil functions and levels of Th1-related chemokines and CD4+ T cells in the blood. Sleep Breath 2019; 23:1331-1339. [DOI: 10.1007/s11325-019-01851-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Revised: 04/02/2019] [Accepted: 04/16/2019] [Indexed: 12/22/2022]
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Abstract
Posttraumatic stress disorder is a serious and often disabling syndrome that develops in response to a traumatic event. Many individuals who initially develop the disorder go on to experience a chronic form of the condition that in some cases can last for many years. Among these patients, psychiatric and medical comorbidities are common, including early onset of age-related conditions such as chronic pain, cardiometabolic disease, neurocognitive disorders, and dementia. The hallmark symptoms of posttraumatic stress-recurrent sensory-memory reexperiencing of the trauma(s)-are associated with concomitant activations of threat- and stress-related neurobiological pathways that occur against a tonic backdrop of sleep disturbance and heightened physiological arousal. Emerging evidence suggests that the molecular consequences of this stress-perpetuating syndrome include elevated systemic levels of oxidative stress and inflammation. In this article we review evidence for the involvement of oxidative stress and inflammation in chronic PTSD and the neurobiological consequences of these processes, including accelerated cellular aging and neuroprogression. Our aim is to update and expand upon previous reviews of this rapidly developing literature and to discuss magnetic resonance spectroscopy as an imaging technology uniquely suited to measuring oxidative stress and inflammatory markers in vivo. Finally, we highlight future directions for research and avenues for the development of novel therapeutics targeting oxidative stress and inflammation in patients with PTSD.
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Affiliation(s)
- Mark W Miller
- From the Department of Psychiatry, Boston University School of Medicine (Drs. M. W. Miller, Wolf, and D. R. Miller); National Center for PTSD, Behavioral Science Division, VA Boston Healthcare System, Boston, MA (Drs. M. W. Miller, Wolf, and D. R. Miller); Harvard Medical School and Department of Radiology, Brigham & Women's Hospital, Boston, MA (Dr. Lin)
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Sleep Disturbance as a Potential Modifiable Risk Factor for Alzheimer's Disease. Int J Mol Sci 2019; 20:ijms20040803. [PMID: 30781802 PMCID: PMC6412395 DOI: 10.3390/ijms20040803] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Revised: 01/30/2019] [Accepted: 02/03/2019] [Indexed: 12/13/2022] Open
Abstract
Sleep disturbance is a common symptom in patients with various neurodegenerative diseases, including Alzheimer’s disease (AD), and it can manifest in the early stages of the disease. Impaired sleep in patients with AD has been attributed to AD pathology that affects brain regions regulating the sleep–wake or circadian rhythm. However, recent epidemiological and experimental studies have demonstrated an association between impaired sleep and an increased risk of AD. These studies have led to the idea of a bidirectional relationship between AD and impaired sleep; in addition to the conventional concept that impaired sleep is a consequence of AD pathology, various evidence strongly suggests that impaired sleep is a risk factor for the initiation and progression of AD. Despite this recent progress, much remains to be elucidated in order to establish the benefit of therapeutic interventions against impaired sleep to prevent or alleviate the disease course of AD. In this review, we provide an overview of previous studies that have linked AD and sleep. We then highlight the studies that have tested the causal relationship between impaired sleep and AD and will discuss the molecular and cellular mechanisms underlying this link. We also propose future works that will aid the development of a novel disease-modifying therapy and prevention of AD via targeting impaired sleep through non-pharmacological and pharmacological interventions.
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Paixão DL, Poyares D, de Paula MS, Duarte JW, Castelo PM, Ambrogini-Júnior O, Miszputen SJ, Oshima CTF, Chagas JR, Paiotti APR. Evaluation of Home Polysomnography Findings, Quality of Sleep, and Fatigue in Inflammatory Bowel Disease: A Case Series. J Clin Sleep Med 2019; 15:39-45. [PMID: 30621826 DOI: 10.5664/jcsm.7566] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 08/30/2018] [Indexed: 12/18/2022]
Abstract
STUDY OBJECTIVES The pathogenesis of inflammatory bowel disease (IBD) is not well understood, and sleep disorders may be potential triggers for IBD. Thus, an evaluation of the sleep characteristics, fatigue symptoms, and cytokine levels was performed in patients with IBD during periods of active disease and remission. METHODS A total of 20 participants presenting with Crohn's disease or ulcerative colitis, with active disease (n = 7) or in remission (n = 13), underwent home polysomnography (H-PSG). Pittsburgh Sleep Quality Index (PSQI) and Modified Fatigue Impact Scale (MFIS) were applied, in addition to the evaluation of interleukin (IL)-6, IL-10, and tumor necrosis factor alpha (TNF-α) serum levels. Exploratory analysis, t test and Mann-Whitney U test were used. RESULTS The mean sleep latency in patients with active disease was 133.07 minutes and 106.79 minutes in those in remission. The sleep efficiency and sleep fragmentation in patients with active disease and those in remission were 80.90% and 84.20% (median), and 76.36/min and 69.82/min (mean), respectively, although the H-PSG parameters did not differ between the groups. The PSQI scores indicated poor sleep quality (global score above 5) in all participants with IBD, and the participants with active disease presented more symptoms of fatigue (P = .032). IL-6 and TNF-α average levels were higher in the participants with disease remission, although with a larger dispersion of the data. CONCLUSIONS No significant difference in the H-PSG characteristics was observed between the patients with IBD with active disease and those in remission; however, the perception of the participants with IBD showed significant effect on the sleep quality and fatigue symptoms.
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Affiliation(s)
- Deise Lun Paixão
- Department of Pathology, Universidade Federal de São Paulo, Escola Paulista de Medicina, UNIFESP, São Paulo, Brazil
| | - Dalva Poyares
- Department of Psychobiology, Universidade Federal de São Paulo, Escola Paulista de Medicina, UNIFESP, São Paulo, Brazil.,Sleep Institute, Universidade Federal de São Paulo, Escola Paulista de Medicina, UNIFESP, São Paulo, Brazil
| | - Marta Sevilh de Paula
- Sleep Institute, Universidade Federal de São Paulo, Escola Paulista de Medicina, UNIFESP, São Paulo, Brazil
| | - Joselmo Willamy Duarte
- Department of Pathology, Universidade Federal de São Paulo, Escola Paulista de Medicina, UNIFESP, São Paulo, Brazil
| | - Paula Midor Castelo
- Department of Pharmaceutical Sciences, Universidade Federal de São Paulo, UNIFESP, São Paulo, Brazil
| | - Orlando Ambrogini-Júnior
- Department of Medicine, Discipline of Gastroenterology, Universidade Federal de São Paulo, Escola Paulista de Medicina, UNIFESP, São Paulo, Brazil
| | - Sender Jankie Miszputen
- Department of Medicine, Discipline of Gastroenterology, Universidade Federal de São Paulo, Escola Paulista de Medicina, UNIFESP, São Paulo, Brazil
| | - Celina Tizuko Fujiyam Oshima
- Department of Pathology, Universidade Federal de São Paulo, Escola Paulista de Medicina, UNIFESP, São Paulo, Brazil.,Department of Medicine, Discipline of Gastroenterology, Universidade Federal de São Paulo, Escola Paulista de Medicina, UNIFESP, São Paulo, Brazil
| | - Jair Ribeir Chagas
- Department of Psychobiology, Universidade Federal de São Paulo, Escola Paulista de Medicina, UNIFESP, São Paulo, Brazil
| | - Ana Paula Ribeir Paiotti
- Department of Pathology, Universidade Federal de São Paulo, Escola Paulista de Medicina, UNIFESP, São Paulo, Brazil.,Department of Medicine, Discipline of Gastroenterology, Universidade Federal de São Paulo, Escola Paulista de Medicina, UNIFESP, São Paulo, Brazil
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Cooper LN, Mishra I, Ashley NT. Short-Term Sleep Loss Alters Cytokine Gene Expression in Brain and Peripheral Tissues and Increases Plasma Corticosterone of Zebra Finch (Taeniopygia guttata). Physiol Biochem Zool 2019; 92:80-91. [DOI: 10.1086/701170] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Wake H, Horiuchi H, Kato D, Moorhouse AJ, Nabekura J. Physiological Implications of Microglia-Synapse Interactions. Methods Mol Biol 2019; 2034:69-80. [PMID: 31392678 DOI: 10.1007/978-1-4939-9658-2_6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Microglia are the sole immune responding cells in the central nervous system. Their role as neuroimmune cells in the pathogenesis of various neurodegenerative and infectious diseases of the brain have been extensively studied. Upon brain disease and infection, they adopt an activated phenotype associated with the release of cytokines and neurotrophic factors and resulting in neuroprotective or neurotoxic outcomes. However, microglia are resident also in the healthy or physiological brain, but much less is known about their role(s) in the healthy brain, partly due to technical limitations regarding investigation of these highly reactive cells in the intact brain. Recent developments in molecular probes and in vivo optical imaging techniques has now helped to characterize microglia in the physiological or healthy brain. In vivo two-photon imaging of fluorescently labeled microglia have revealed that they are highly motile cells in the healthy brain, extending and retracting their processes that extend from a largely stationary cell soma. In this chapter, we briefly summarize some of the physiological functions of microglia in the uninjured brain, with a focus on interactions they have with synapses.
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Affiliation(s)
- Hiroaki Wake
- Division of System Neuroscience, Kobe University Graduate School of Medicine, Kobe, Japan.,Precursory Research for Embryonic Science and Technology, Japan Science and Technology Agency, Saitama, Japan.,Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Saitama, Japan
| | - Hiroshi Horiuchi
- Division of Homeostatic Development, National Institute for Physiological Sciences, Okazaki, Japan.,Department of Physiological Sciences, The Graduate School for Advanced Study, Hayama, Japan
| | - Daisuke Kato
- Division of System Neuroscience, Kobe University Graduate School of Medicine, Kobe, Japan.,Division of Homeostatic Development, National Institute for Physiological Sciences, Okazaki, Japan
| | - Andrew J Moorhouse
- School of Medical Sciences, The University of New South Wales, Sydney, NSW, Australia
| | - Junichi Nabekura
- Division of Homeostatic Development, National Institute for Physiological Sciences, Okazaki, Japan. .,Department of Physiological Sciences, The Graduate School for Advanced Study, Hayama, Japan.
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The Association of Dry Eye Symptom Severity and Comorbid Insomnia in US Veterans. Eye Contact Lens 2018; 44 Suppl 1:S118-S124. [PMID: 28181961 DOI: 10.1097/icl.0000000000000349] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
PURPOSE To investigate the association between dry eye (DE) and insomnia symptom severity. METHODS Cross-sectional study of 187 individuals seen in the Miami Veterans Affairs eye clinic. An evaluation was performed consisting of questionnaires regarding insomnia (insomnia severity index [ISI]) and DE symptoms, including ocular pain, followed by a comprehensive ocular surface examination. Using a two-step cluster analysis based on intensity ratings of ocular pain, the patient population was divided into two groups (high and low ocular pain groups: HOP and LOP). A control group was ascertained at the same time from the same clinic as defined by no symptoms of DE (Dry Eye Questionnaire 5 [DEQ5], <6). The main outcome measure was the frequency of moderate or greater insomnia in the DE groups. RESULTS The mean age of the study sample was 63 years, and 93% were male. All insomnia complaints were rated higher in the HOP group compared with the LOP and control groups (P<0.0005). Most (61%) individuals in the HOP group experienced insomnia of at least moderate severity (ISI≥15) compared with the LOP (41%) and control groups (18%) (P<0.0005). Black race (odds ratio [OR], 2.7; 95% confidence interval [CI], 1.2-6.0; P=0.02), depression severity (OR, 1.2; 95% CI, 1.1-1.3; P<0.0005), and DE symptom severity (DEQ5; OR, 1.1; 95% CI, 1.01-1.2; P=0.03) were significantly associated with clinical insomnia (ISI≥15) after controlling for potential confounders. CONCLUSIONS After adjusting for demographics and medical comorbidities, we show that DE symptom severity is positively associated with insomnia severity.
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Abstract
Among factors impacting performance during an ultramarathon, sleep is an underappreciated factor that has received little attention. The aims of this study were to characterize habitual sleep behaviors in ultramarathon runners and to examine strategies they use to manage sleep before and during ultramarathons. Responses from 636 participants to a questionnaire were considered. This population was found to sleep more on weekends and holidays (7–8 h to 8–9 h) than during weekdays (6–7 h to 7–8 h; p < 0.001). Work was a mediator of napping habits since 19–25% reported napping on work days and 37–56% on non-work days. There were 24.5% of the participants reporting sleep disorders, with more women (38.9%) reporting sleep problems than men (22.0%; p < 0.005). Mean (±SD) sleepiness score on the Epworth Sleepiness Scale was 8.9 ± 4.3 with 37.6% of respondents scoring higher than 10, reflecting excessive daytime sleepiness. Most of the study participants (73.9%) had a strategy to manage sleep preceding an ultramarathon, with 54.7% trying to increase their opportunities for sleep. Only 21% of participants reported that they had a strategy to manage sleep during ultramarathons, with micronaps being the most common strategy specified. Sub-analyses from 221 responses indicated that sleep duration during an ultramarathon was correlated with finish time for races lasting 36–60 h (r = 0.48; p < 0.01) or > 60 h (r = 0.44; p < 0.001). We conclude that sleep duration among ultramarathon runners was comparable to the general population and other athletic populations, yet they reported a lower prevalence of sleep disorders. Daytime sleepiness was among the lowest rates encountered in athletic populations, which may be related to the high percentage of nappers in our population. Sleep extension, by increasing sleep time at night and daytime napping, was the main sleep strategy to prepare for ultramarathons.
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The putative role of oxidative stress and inflammation in the pathophysiology of sleep dysfunction across neuropsychiatric disorders: Focus on chronic fatigue syndrome, bipolar disorder and multiple sclerosis. Sleep Med Rev 2018; 41:255-265. [PMID: 29759891 DOI: 10.1016/j.smrv.2018.03.007] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 02/20/2018] [Accepted: 03/27/2018] [Indexed: 12/29/2022]
Abstract
Sleep and circadian abnormalities are prevalent and burdensome manifestations of diverse neuro-immune diseases, and may aggravate the course of several neuropsychiatric disorders. The underlying pathophysiology of sleep abnormalities across neuropsychiatric disorders remains unclear, and may involve the inter-play of several clinical variables and mechanistic pathways. In this review, we propose a heuristic framework in which reciprocal interactions of immune, oxidative and nitrosative stress, and mitochondrial pathways may drive sleep abnormalities across potentially neuroprogressive disorders. Specifically, it is proposed that systemic inflammation may activate microglial cells and astrocytes in brain regions involved in sleep and circadian regulation. Activated glial cells may secrete pro-inflammatory cytokines (for example, interleukin-1 beta and tumour necrosis factor alpha), nitric oxide and gliotransmitters, which may influence the expression of key circadian regulators (e.g., the Circadian Locomotor Output Cycles Kaput (CLOCK) gene). Furthermore, sleep disruption may further aggravate oxidative and nitrosative, peripheral immune activation, and (neuro) inflammation across these disorders in a vicious pathophysiological loop. This review will focus on chronic fatigue syndrome, bipolar disorder, and multiple sclerosis as exemplars of neuro-immune disorders. We conclude that novel therapeutic targets exploring immune and oxidative & nitrosative pathways (p.e. melatonin and molecular hydrogen) hold promise in alleviating sleep and circadian dysfunction in these disorders.
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64
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Peter-Derex L. Sonno normale. Neurologia 2018. [DOI: 10.1016/s1634-7072(18)91374-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Klyne DM, Barbe MF, van den Hoorn W, Hodges PW. ISSLS PRIZE IN CLINICAL SCIENCE 2018: longitudinal analysis of inflammatory, psychological, and sleep-related factors following an acute low back pain episode-the good, the bad, and the ugly. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2018; 27:763-777. [PMID: 29460011 DOI: 10.1007/s00586-018-5490-7] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 01/20/2018] [Indexed: 02/07/2023]
Abstract
STUDY DESIGN Prospective longitudinal study. OBJECTIVE To determine whether systemic cytokines and C-reactive protein (CRP) during an acute episode of low back pain (LBP) differ between individuals who did and did not recover by 6 months and to identify sub-groups based on patterns of inflammatory, psychological, and sleep features associated with recovery/non-recovery. Systemic inflammation is observed in chronic LBP and may contribute to the transition from acute to persistent LBP. Longitudinal studies are required to determine whether changes present early or develop over time. Psychological and/or sleep-related factors may be related. METHODS Individuals within 2 weeks of onset of acute LBP (N = 109) and pain-free controls (N = 55) provided blood for assessment of CRP, tumor necrosis factor (TNF), interleukin-6 (IL-6) and interleukin-1β, and completed questionnaires related to pain, disability, sleep, and psychological status. LBP participants repeated measurements at 6 months. Biomarkers were compared between LBP and control participants at baseline, and in longitudinal (baseline/6 months) analysis, between unrecovered (≥pain and disability), partially recovered (reduced pain and/or disability) and recovered (no pain and disability) participants at 6 months. We assessed baseline patterns of inflammatory, psychological, sleep, and pain data using hierarchical clustering and related the clusters to recovery (% change in pain) at 6 months. RESULTS CRP was higher in acute LBP than controls at baseline. In LBP, baseline CRP was higher in the recovered than non-recovered groups. Conversely, TNF was higher at both time-points in the non-recovered than recovered groups. Two sub-groups were identified that associated with more ("inflammatory/poor sleep") or less ("high TNF/depression") recovery. CONCLUSIONS This is the first evidence of a relationship between an "acute-phase" systemic inflammatory response and recovery at 6 months. High inflammation (CRP/IL-6) was associated with good recovery, but specific elevation of TNF, along with depressive symptoms, was associated with bad recovery. Depression and TNF may have a two-way relationship. These slides can be retrieved under Electronic Supplementary Material.
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Affiliation(s)
- David M Klyne
- NHMRC Centre of Clinical Research Excellence in Spinal Pain, Injury and Health, School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Mary F Barbe
- Department of Anatomy and Cell Biology, Temple University School of Medicine, Temple University, Philadelphia, USA
| | - Wolbert van den Hoorn
- NHMRC Centre of Clinical Research Excellence in Spinal Pain, Injury and Health, School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Paul W Hodges
- NHMRC Centre of Clinical Research Excellence in Spinal Pain, Injury and Health, School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane, QLD, 4072, Australia.
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Pérez AR, Morrot A, Carvalho VF, de Meis J, Savino W. Role of Hormonal Circuitry Upon T Cell Development in Chagas Disease: Possible Implications on T Cell Dysfunctions. Front Endocrinol (Lausanne) 2018; 9:334. [PMID: 29963015 PMCID: PMC6010535 DOI: 10.3389/fendo.2018.00334] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Accepted: 05/31/2018] [Indexed: 12/22/2022] Open
Abstract
T cell response plays an essential role in the host resistance to infection by the protozoan parasite Trypanosoma cruzi, the causative agent of Chagas disease. This infection is often associated with multiple manifestations of T cell dysfunction, both during the acute and the chronic phases of disease. Additionally, the normal development of T cells is affected. As seen in animal models of Chagas disease, there is a strong thymic atrophy due to massive death of CD4+CD8+ double-positive cells by apoptosis and an abnormal escape of immature and potentially autoreactive thymocytes from the organ. Furthermore, an increase in the release of corticosterone triggered by T. cruzi-driven systemic inflammation is strongly associated with the alterations seen in the thymus of infected animals. Moreover, changes in the levels of other hormones, including growth hormone, prolactin, and testosterone are also able to contribute to the disruption of thymic homeostasis secondary to T. cruzi infection. In this review, we discuss the role of hormonal circuits involved in the normal T cell development and trafficking, as well as their role on the thymic alterations likely related to the peripheral T cell disturbances largely reported in both chagasic patients and animal models of Chagas disease.
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Affiliation(s)
- Ana Rosa Pérez
- Institute of Clinical and Experimental Immunology (IDICER-CONICET UNR), Rosario, Argentina
- *Correspondence: Ana Rosa Pérez, ,
| | - Alexandre Morrot
- Faculty of Medicine, Tuberculosis Research Center, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Vinicius Frias Carvalho
- Laboratory of Inflammation, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
- Laboratory on Thymus Research, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Juliana de Meis
- Laboratory on Thymus Research, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
- National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Rio de Janeiro, Brazil
| | - Wilson Savino
- Laboratory on Thymus Research, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
- National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Rio de Janeiro, Brazil
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Vakil M, Park S, Broder A. The complex associations between obstructive sleep apnea and auto-immune disorders: A review. Med Hypotheses 2018; 110:138-143. [DOI: 10.1016/j.mehy.2017.12.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 10/27/2017] [Accepted: 12/01/2017] [Indexed: 12/11/2022]
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Yeh TT, Hsieh YW, Wu CY, Wang JS, Lin KC, Chen CL. A Preliminary Investigation of the Association of Sleep With Inflammation and Oxidative Stress Biomarkers and Functional Outcomes After Stroke Rehabilitation. Sci Rep 2017; 7:8634. [PMID: 28819157 PMCID: PMC5561026 DOI: 10.1038/s41598-017-08931-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 07/19/2017] [Indexed: 11/09/2022] Open
Abstract
This study examined the association of sleep with inflammation and oxidative stress biomarkers, and with functional outcomes, after stroke rehabilitation. The rehabilitation effects on biomarkers and functional outcomes were also evaluated. Twenty subacute stroke survivors received 4 weeks of upper limb rehabilitation. Baseline inflammatory (i.e., soluble intercellular adhesion molecule-1, sICAM-1) and oxidative stress biomarkers (i.e., glutathione peroxidase, GPx and malondialdehyde, MDA) were assessed, as were sleep outcomes. Positive correlations were observed between baseline level of sICAM-1 and number of awakenings at post-treatment (ρ = 0.51, p < 0.05) as well as between baseline level of MDA and post-performance time of the Wolf Motor Function Test (WMFT-time) (ρ = 0.46, p < 0.05). In addition, MDA levels were significantly decreased, and functional outcomes of the modified Rankin Scale (mRS), functional ability scale of the WMFT, and Stroke Impact Scale (SIS-total, and SIS-physical function) were improved after the rehabilitation. This pilot study emphasizes the relationship among biomarkers, sleep, and functional outcomes after stroke rehabilitation. Oxidative stress markers may be useful predictors of functional outcomes in subacute stroke survivors.
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Affiliation(s)
- Ting-Ting Yeh
- School of Occupational Therapy, College of Medicine, National Taiwan University, 17, F4, Xu Zhou Road, Taipei, Taiwan
| | - Yu-Wei Hsieh
- Department of Occupational Therapy and Graduate Institute of Behavioral Sciences, College of Medicine, Chang Gung University, 259 Wenhua 1st Rd., Guishan Dist., Taoyuan City, Taiwan
- Healthy Aging Research Center, Chang Gung University, 259 Wenhua 1st Rd., Guishan Dist., Taoyuan City, Taiwan
- Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital at Linkou, 5 Fuxing St., Guishan Dist., Taoyuan City, Taiwan
| | - Ching-Yi Wu
- Department of Occupational Therapy and Graduate Institute of Behavioral Sciences, College of Medicine, Chang Gung University, 259 Wenhua 1st Rd., Guishan Dist., Taoyuan City, Taiwan
- Healthy Aging Research Center, Chang Gung University, 259 Wenhua 1st Rd., Guishan Dist., Taoyuan City, Taiwan
- Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital at Linkou, 5 Fuxing St., Guishan Dist., Taoyuan City, Taiwan
| | - Jong-Shyan Wang
- Healthy Aging Research Center, Chang Gung University, 259 Wenhua 1st Rd., Guishan Dist., Taoyuan City, Taiwan
- Graduate Institute of Rehabilitation Science, Chang Gung University, 259 Wenhua 1st Rd., Guishan Dist., Taoyuan City, Taiwan
| | - Keh-Chung Lin
- School of Occupational Therapy, College of Medicine, National Taiwan University, 17, F4, Xu Zhou Road, Taipei, Taiwan.
- Division of Occupational Therapy, Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, 7 Chung Shan South Rd., Taipei, Taiwan.
| | - Chia-Ling Chen
- Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital at Linkou, 5 Fuxing St., Guishan Dist., Taoyuan City, Taiwan
- Graduate Institute of Early Intervention, College of Medicine, Chang Gung University, 259 Wenhua 1st Rd., Guishan Dist., Taoyuan City, Taiwan
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69
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Fernandes GL, Araujo P, Tufik S, Andersen ML. The role of IL-6 and STAT in sleep and neuroinflammation. Clin Immunol 2017; 180:58-59. [DOI: 10.1016/j.clim.2017.04.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 04/05/2017] [Accepted: 04/05/2017] [Indexed: 11/26/2022]
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Sleep Loss Promotes Astrocytic Phagocytosis and Microglial Activation in Mouse Cerebral Cortex. J Neurosci 2017; 37:5263-5273. [PMID: 28539349 DOI: 10.1523/jneurosci.3981-16.2017] [Citation(s) in RCA: 232] [Impact Index Per Article: 33.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Revised: 03/23/2017] [Accepted: 04/13/2017] [Indexed: 11/21/2022] Open
Abstract
We previously found that Mertk and its ligand Gas6, astrocytic genes involved in phagocytosis, are upregulated after acute sleep deprivation. These results suggested that astrocytes may engage in phagocytic activity during extended wake, but direct evidence was lacking. Studies in humans and rodents also found that sleep loss increases peripheral markers of inflammation, but whether these changes are associated with neuroinflammation and/or activation of microglia, the brain's resident innate immune cells, was unknown. Here we used serial block-face scanning electron microscopy to obtain 3D volume measurements of synapses and surrounding astrocytic processes in mouse frontal cortex after 6-8 h of sleep, spontaneous wake, or sleep deprivation (SD) and after chronic (∼5 d) sleep restriction (CSR). Astrocytic phagocytosis, mainly of presynaptic components of large synapses, increased after both acute and chronic sleep loss relative to sleep and wake. MERTK expression and lipid peroxidation in synaptoneurosomes also increased to a similar extent after short and long sleep loss, suggesting that astrocytic phagocytosis may represent the brain's response to the increase in synaptic activity associated with prolonged wake, clearing worn components of heavily used synapses. Using confocal microscopy, we then found that CSR but not SD mice show morphological signs of microglial activation and enhanced microglial phagocytosis of synaptic elements, without obvious signs of neuroinflammation in the CSF. Because low-level sustained microglia activation can lead to abnormal responses to a secondary insult, these results suggest that chronic sleep loss, through microglia priming, may predispose the brain to further damage.SIGNIFICANCE STATEMENT We find that astrocytic phagocytosis of synaptic elements, mostly of presynaptic origin and in large synapses, is upregulated already after a few hours of sleep deprivation and shows a further significant increase after prolonged and severe sleep loss, suggesting that it may promote the housekeeping of heavily used and strong synapses in response to the increased neuronal activity of extended wake. By contrast, chronic sleep restriction but not acute sleep loss activates microglia, promotes their phagocytic activity, and does so in the absence of overt signs of neuroinflammation, suggesting that like many other stressors, extended sleep disruption may lead to a state of sustained microglia activation, perhaps increasing the brain's susceptibility to other forms of damage.
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71
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Hurtado-Alvarado G, Velázquez-Moctezuma J, Gómez-González B. Chronic sleep restriction disrupts interendothelial junctions in the hippocampus and increases blood-brain barrier permeability. J Microsc 2017; 268:28-38. [PMID: 28543440 DOI: 10.1111/jmi.12583] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 04/12/2017] [Accepted: 04/28/2017] [Indexed: 12/21/2022]
Abstract
Chronic sleep loss in the rat increases blood-brain barrier permeability to Evans blue and FITC-dextrans in almost the whole brain and sleep recovery during short periods restores normal blood-brain barrier permeability. Sleep loss increases vesicle density in hippocampal endothelial cells and decreases tight junction protein expression. However, at the ultrastructural level the effect of chronic sleep loss on interendothelial junctions is unknown. In this study we characterised the ultrastructure of interendothelial junctions in the hippocampus, the expression of tight junction proteins, and quantified blood-brain barrier permeability to fluorescein-sodium after chronic sleep restriction. Male Wistar rats were sleep restricted using the modified multiple platform method during 10 days, with a daily schedule of 20-h sleep deprivation plus 4-h sleep recovery at their home-cages. At the 10th day hippocampal samples were obtained immediately at the end of the 20-h sleep deprivation period, and after 40 and 120 min of sleep recovery. Samples were processed for transmission electron microscopy and western blot. Chronic sleep restriction increased blood-brain barrier permeability to fluorescein-sodium, and decreased interendothelial junction complexity by increasing the frequency of less mature end-to-end and simply overlap junctions, even after sleep recovery, as compared to intact controls. Chronic sleep loss also induced the formation of clefts between narrow zones of adjacent endothelial cell membranes in the hippocampus. The expression of claudin-5 and actin decreased after chronic sleep loss as compared to intact animals. Therefore, it seems that chronic sleep loss disrupts interendothelial junctions that leads to blood-brain barrier hyperpermeability in the hippocampus.
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Affiliation(s)
- G Hurtado-Alvarado
- Area of Neurosciences, Department of Biology of Reproduction, CBS, Universidad Autónoma Metropolitana, Unidad Iztapalapa, Mexico City, Mexico
| | - J Velázquez-Moctezuma
- Area of Neurosciences, Department of Biology of Reproduction, CBS, Universidad Autónoma Metropolitana, Unidad Iztapalapa, Mexico City, Mexico
| | - B Gómez-González
- Area of Neurosciences, Department of Biology of Reproduction, CBS, Universidad Autónoma Metropolitana, Unidad Iztapalapa, Mexico City, Mexico
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72
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Morris G, Walder K, McGee SL, Dean OM, Tye SJ, Maes M, Berk M. A model of the mitochondrial basis of bipolar disorder. Neurosci Biobehav Rev 2017; 74:1-20. [DOI: 10.1016/j.neubiorev.2017.01.014] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 01/08/2017] [Accepted: 01/10/2017] [Indexed: 12/11/2022]
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73
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Hurtado-Alvarado G, Domínguez-Salazar E, Velázquez-Moctezuma J, Gómez-González B. A2A Adenosine Receptor Antagonism Reverts the Blood-Brain Barrier Dysfunction Induced by Sleep Restriction. PLoS One 2016; 11:e0167236. [PMID: 27893847 PMCID: PMC5125701 DOI: 10.1371/journal.pone.0167236] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 11/10/2016] [Indexed: 12/20/2022] Open
Abstract
Chronic sleep restriction induces blood-brain barrier disruption and increases pro-inflammatory mediators in rodents. Those inflammatory mediators may modulate the blood-brain barrier and constitute a link between sleep loss and blood-brain barrier physiology. We propose that adenosine action on its A2A receptor may be modulating the blood-brain barrier dynamics in sleep-restricted rats. We administrated a selective A2A adenosine receptor antagonist (SCH58261) in sleep-restricted rats at the 10th day of sleep restriction and evaluated the blood-brain barrier permeability to dextrans coupled to fluorescein (FITC-dextrans) and Evans blue. In addition, we evaluated by western blot the expression of tight junction proteins (claudin-5, occludin, ZO-1), adherens junction protein (E-cadherin), A2A adenosine receptor, adenosine-synthesizing enzyme (CD73), and neuroinflammatory markers (Iba-1 and GFAP) in the cerebral cortex, hippocampus, basal nuclei and cerebellar vermis. Sleep restriction increased blood-brain barrier permeability to FITC-dextrans and Evans blue, and the effect was reverted by the administration of SCH58261 in almost all brain regions, excluding the cerebellum. Sleep restriction increased the expression of A2A adenosine receptor only in the hippocampus and basal nuclei without changing the expression of CD73 in all brain regions. Sleep restriction reduced the expression of tight junction proteins in all brain regions, except in the cerebellum; and SCH58261 restored the levels of tight junction proteins in the cortex, hippocampus and basal nuclei. Finally, sleep restriction induced GFAP and Iba-1 overexpression that was attenuated with the administration of SCH58261. These data suggest that the action of adenosine on its A2A receptor may have a crucial role in blood-brain barrier dysfunction during sleep loss probably by direct modulation of brain endothelial cell permeability or through a mechanism that involves gliosis with subsequent inflammation and increased blood-brain barrier permeability.
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Affiliation(s)
- Gabriela Hurtado-Alvarado
- Area of Neurosciences, Department of Biology of Reproduction, CBS, Universidad Autónoma Metropolitana, Unidad Iztapalapa, Mexico City, Mexico
- Postgraduate Program in Experimental Biology, CBS, Universidad Autónoma Metropolitana, Unidad Iztapalapa, Mexico City, Mexico
| | - Emilio Domínguez-Salazar
- Area of Neurosciences, Department of Biology of Reproduction, CBS, Universidad Autónoma Metropolitana, Unidad Iztapalapa, Mexico City, Mexico
| | - Javier Velázquez-Moctezuma
- Area of Neurosciences, Department of Biology of Reproduction, CBS, Universidad Autónoma Metropolitana, Unidad Iztapalapa, Mexico City, Mexico
| | - Beatriz Gómez-González
- Area of Neurosciences, Department of Biology of Reproduction, CBS, Universidad Autónoma Metropolitana, Unidad Iztapalapa, Mexico City, Mexico
- * E-mail: ,
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Blood-Brain Barrier Disruption Induced by Chronic Sleep Loss: Low-Grade Inflammation May Be the Link. J Immunol Res 2016; 2016:4576012. [PMID: 27738642 PMCID: PMC5050358 DOI: 10.1155/2016/4576012] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2016] [Revised: 08/14/2016] [Accepted: 08/24/2016] [Indexed: 12/16/2022] Open
Abstract
Sleep is a vital phenomenon related to immunomodulation at the central and peripheral level. Sleep deficient in duration and/or quality is a common problem in the modern society and is considered a risk factor to develop neurodegenerative diseases. Sleep loss in rodents induces blood-brain barrier disruption and the underlying mechanism is still unknown. Several reports indicate that sleep loss induces a systemic low-grade inflammation characterized by the release of several molecules, such as cytokines, chemokines, and acute-phase proteins; all of them may promote changes in cellular components of the blood-brain barrier, particularly on brain endothelial cells. In the present review we discuss the role of inflammatory mediators that increase during sleep loss and their association with general disturbances in peripheral endothelium and epithelium and how those inflammatory mediators may alter the blood-brain barrier. Finally, this manuscript proposes a hypothetical mechanism by which sleep loss may induce blood-brain barrier disruption, emphasizing the regulatory effect of inflammatory molecules on tight junction proteins.
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75
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Novel environment influences the effect of paradoxical sleep deprivation upon brain and peripheral cytokine gene expression. Neurosci Lett 2016; 615:55-9. [PMID: 26806035 DOI: 10.1016/j.neulet.2016.01.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 01/08/2016] [Accepted: 01/10/2016] [Indexed: 12/23/2022]
Abstract
Sleep loss increases inflammatory mediators in brain and peripheral tissues, but the mechanisms underlying this association are not fully understood. Male C57BL/6j mice were exposed to paradoxical sleep deprivation (PSD) for 24h using the modified multiple platform (MMP) technique (platforms over water) or two different controls: home cage or a dry platform cage, which constituted a novel environment. PSD mice exhibited increased IL-1β and TNF-α pro-inflammatory gene expression in brain (hypothalamus, hippocampus, pre-frontal cortex), as well as in peripheral tissues (liver, spleen), when compared with home-cage controls. In addition, among PSD mice, TGFβ1, an anti-inflammatory cytokine, was increased in pre-frontal cortex, liver, and spleen in conjunction with elevated serum corticosterone concentration relative to home-cage controls. However, these differences were nearly abolished when PSD mice were compared with control mice subjected to a dry MMP cage, suggesting that simply exposing mice to a novel environment can induce an acute inflammatory response.
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76
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Lungato L, Nogueira-Pedro A, Carvalho Dias C, Paredes-Gamero EJ, Tufik S, D'Almeida V. Effects of Sleep Deprivation on Mice Bone Marrow and Spleen B Lymphopoiesis. J Cell Physiol 2015; 231:1313-20. [DOI: 10.1002/jcp.25231] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2015] [Accepted: 10/28/2015] [Indexed: 12/17/2022]
Affiliation(s)
- Lisandro Lungato
- Department of Psychobiology; Universidade Federal de São Paulo, UNIFESP; São Paulo SP Brazil
| | - Amanda Nogueira-Pedro
- Department of Biophysics; Universidade Federal de São Paulo, UNIFESP; São Paulo SP Brazil
| | - Carolina Carvalho Dias
- Department de Biochemistry; Universidade Federal de São Paulo, UNIFESP; São Paulo SP Brazil
| | - Edgar Julian Paredes-Gamero
- Department de Biochemistry; Universidade Federal de São Paulo, UNIFESP; São Paulo SP Brazil
- Centro Interdisciplinar de Investigação Bioquı́mica; Universidade de Mogi das Cruzes, Av. Dr Cândido Xavier de Almeida Souza; Mogi das Cruzes SP Brazil
| | - Sergio Tufik
- Department of Psychobiology; Universidade Federal de São Paulo, UNIFESP; São Paulo SP Brazil
| | - Vânia D'Almeida
- Department of Psychobiology; Universidade Federal de São Paulo, UNIFESP; São Paulo SP Brazil
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77
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Chung WS, Lin CL, Kao CH. Association of systemic lupus erythematosus and sleep disorders: a nationwide population-based cohort study. Lupus 2015; 25:382-8. [PMID: 26585071 DOI: 10.1177/0961203315617843] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Accepted: 10/20/2015] [Indexed: 12/15/2022]
Abstract
Objective Using a population-based cohort study, we investigated whether sleep disorders (SDs) increase the risk of systemic lupus erythematosus (SLE). Patients and methods We identified patients with SDs and a control cohort from 1998–2001 by using the Taiwan Longitudinal Health Insurance Database 2000. Two controls for each patient with an SD were selected and randomly frequency-matched according to age, gender, and index year. The follow-up person–years were estimated for the patients from the index date to SLE diagnosis, loss to follow-up, or the end of 31 December 2011. We used the Cox proportional hazards models to evaluate how SDs influence the risk of SLE after adjustments for demographic factors and comorbidities. Results A total of 144,396 subjects (48,132 SD cases and 96,264 controls) were followed for 1,477,055 person–years. The patients with SDs displayed higher incidence density rate of developing SLE than did the controls (1.03 vs 0.46 per 10,000 person–years). After adjustment for covariates, the patients with SDs exhibited a 2.20-fold higher adjusted hazard ratio (aHR) of developing SLE than the controls (95% confidence interval (CI) = 1.44–3.36). Women exhibited a greater prevalence of SDs and SLE compared to men. Patients with SDs aged 49 years and younger exhibited a significantly increased risk of SLE compared to the controls (aHR=2.30, 95% CI = 1.33–3.98). Patients with SDs living in urban areas exhibited a significantly increased risk of SLE. Conclusion This large population-based cohort study revealed that SDs increase the risk of SLE development.
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Affiliation(s)
- W-S Chung
- Department of Internal Medicine, Taichung Hospital, Ministry of Health and Welfare, Taichung, Taiwan
- Department of Health Services Administration, China Medical University, Taichung, Taiwan
- Department of Healthcare Administration, Central Taiwan University of Science and Technology, Taichung, Taiwan
| | - C-L Lin
- Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan
- College of Medicine, China Medical University, Taichung, Taiwan
| | - C-H Kao
- Graduate Institute of Clinical Medical Science and School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan
- Department of Nuclear Medicine and PET Center, China Medical University Hospital, Taichung, Taiwan
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78
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Inflammation in sleep debt and sleep disorders. Mediators Inflamm 2015; 2015:343265. [PMID: 25883415 PMCID: PMC4390185 DOI: 10.1155/2015/343265] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2015] [Accepted: 03/01/2015] [Indexed: 12/31/2022] Open
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Cespedes EM, Rifas-Shiman SL, Redline S, Gillman MW, Peña MM, Taveras EM. Longitudinal associations of sleep curtailment with metabolic risk in mid-childhood. Obesity (Silver Spring) 2014; 22:2586-92. [PMID: 25234485 PMCID: PMC4236242 DOI: 10.1002/oby.20894] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Accepted: 08/18/2014] [Indexed: 12/22/2022]
Abstract
OBJECTIVE To examine associations of chronic insufficient sleep with mid-childhood cardiometabolic health. METHODS At 6 months and yearly from 1 to 7 years, mothers participating in the Project Viva cohort reported children's 24-h sleep duration. The main exposure was a sleep curtailment score, ranging from 0 (maximal curtailment) to 13 (never having curtailed sleep). The main outcome was a mid-childhood metabolic risk score, derived as the mean of five sex- and cohort-specific z scores for waist circumference, systolic blood pressure, HDL cholesterol (scaled inversely), and log-transformed triglycerides and HOMA-IR; higher scores indicate higher risk. RESULTS The mean (SD) sleep score was 10.0 (2.8); 5.1% scored 0-4, 13.9% scored 5-7, 14.1% scored 8-9, 28.7% scored 10-11, and 38.3% scored 12-13. Mean (SD, range) metabolic risk score was -0.03 (0.6, -1.8 to 2.6). In multivariable models, the metabolic risk score difference for children with most versus least curtailed sleep was 0.29 units (95% confidence interval [CI]: 0.02, 0.57). Further adjustment for mid-childhood BMI z score attenuated this difference to 0.08 units (95% CI: -0.14, 0.30). CONCLUSIONS Chronic insufficient sleep from infancy to school-age was associated with higher mid-childhood metabolic risk. This association was explained by sleep duration's influence on mid-childhood adiposity.
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Affiliation(s)
- Elizabeth M. Cespedes
- Department of Nutrition, Harvard School of Public Health, Boston, MA
- Department of Epidemiology, Harvard School of Public Health, Boston, MA
- Obesity Prevention Program, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA
| | - Sheryl L. Rifas-Shiman
- Obesity Prevention Program, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA
| | - Susan Redline
- Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women’s Hospital, Boston, MA
| | - Matthew W. Gillman
- Department of Nutrition, Harvard School of Public Health, Boston, MA
- Obesity Prevention Program, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA
| | - Michelle-Marie Peña
- Division of General Academic Pediatrics, Department of Pediatrics, Massachusetts General Hospital for Children, Boston, MA
- Harvard Medical School, Boston, MA
| | - Elsie M. Taveras
- Department of Nutrition, Harvard School of Public Health, Boston, MA
- Division of General Academic Pediatrics, Department of Pediatrics, Massachusetts General Hospital for Children, Boston, MA
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