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Kentis S, Shaw JS, Richey LN, Young L, Kosyakova N, Bryant BR, Esagoff AI, Buenaver LF, Salas RME, Peters ME. A Systematic Review of Sleep Disturbance in Idiopathic Intracranial Hypertension. Neurol Clin Pract 2025; 15:e200372. [PMID: 39399548 PMCID: PMC11464263 DOI: 10.1212/cpj.0000000000200372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 06/13/2024] [Indexed: 10/15/2024]
Abstract
Purpose of Review Sleep disturbances, particularly obstructive sleep apnea (OSA), may have a significant impact on the outcomes of patients with idiopathic intracranial hypertension (IIH). We conducted a PRISMA-compliant systematic literature review to study sleep disturbance in adult patients with IIH. Recent Findings The current literature on the relationship between IIH and sleep is quite limited. Research has found that sleep disturbances are associated with lower quality of life and may worsen several symptoms associated with IIH, such as headache, cognitive deficits, and neuropsychiatric issues. Summary OSA was more prevalent in patients with IIH than in healthy controls. Several studies found that OSA was associated with worse IIH symptoms and treatment of OSA helped improve these parameters. Limitations included available literature and heterogeneity in sleep metrics and OSA diagnostic criteria between studies. Overall, further study of sleep disturbances in patients with IIH may encourage earlier screening, improved treatment options, and long-term improvements in quality of life.
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Affiliation(s)
- Sabrina Kentis
- Albert Einstein College of Medicine (SK), New York, NY; Departments of Psychiatry and Behavioral Sciences (LNR, BRB, LFB, MEP) and Neurology and Neurosurgery (RMES), Johns Hopkins University School of Medicine (JSS, LY, AIE), Baltimore, MD; School of Medicine (NK), University of Connecticut, Farmington, CT
| | - Jacob S Shaw
- Albert Einstein College of Medicine (SK), New York, NY; Departments of Psychiatry and Behavioral Sciences (LNR, BRB, LFB, MEP) and Neurology and Neurosurgery (RMES), Johns Hopkins University School of Medicine (JSS, LY, AIE), Baltimore, MD; School of Medicine (NK), University of Connecticut, Farmington, CT
| | - Lisa N Richey
- Albert Einstein College of Medicine (SK), New York, NY; Departments of Psychiatry and Behavioral Sciences (LNR, BRB, LFB, MEP) and Neurology and Neurosurgery (RMES), Johns Hopkins University School of Medicine (JSS, LY, AIE), Baltimore, MD; School of Medicine (NK), University of Connecticut, Farmington, CT
| | - Lisa Young
- Albert Einstein College of Medicine (SK), New York, NY; Departments of Psychiatry and Behavioral Sciences (LNR, BRB, LFB, MEP) and Neurology and Neurosurgery (RMES), Johns Hopkins University School of Medicine (JSS, LY, AIE), Baltimore, MD; School of Medicine (NK), University of Connecticut, Farmington, CT
| | - Natalia Kosyakova
- Albert Einstein College of Medicine (SK), New York, NY; Departments of Psychiatry and Behavioral Sciences (LNR, BRB, LFB, MEP) and Neurology and Neurosurgery (RMES), Johns Hopkins University School of Medicine (JSS, LY, AIE), Baltimore, MD; School of Medicine (NK), University of Connecticut, Farmington, CT
| | - Barry R Bryant
- Albert Einstein College of Medicine (SK), New York, NY; Departments of Psychiatry and Behavioral Sciences (LNR, BRB, LFB, MEP) and Neurology and Neurosurgery (RMES), Johns Hopkins University School of Medicine (JSS, LY, AIE), Baltimore, MD; School of Medicine (NK), University of Connecticut, Farmington, CT
| | - Aaron I Esagoff
- Albert Einstein College of Medicine (SK), New York, NY; Departments of Psychiatry and Behavioral Sciences (LNR, BRB, LFB, MEP) and Neurology and Neurosurgery (RMES), Johns Hopkins University School of Medicine (JSS, LY, AIE), Baltimore, MD; School of Medicine (NK), University of Connecticut, Farmington, CT
| | - Luis F Buenaver
- Albert Einstein College of Medicine (SK), New York, NY; Departments of Psychiatry and Behavioral Sciences (LNR, BRB, LFB, MEP) and Neurology and Neurosurgery (RMES), Johns Hopkins University School of Medicine (JSS, LY, AIE), Baltimore, MD; School of Medicine (NK), University of Connecticut, Farmington, CT
| | - Rachel Marie E Salas
- Albert Einstein College of Medicine (SK), New York, NY; Departments of Psychiatry and Behavioral Sciences (LNR, BRB, LFB, MEP) and Neurology and Neurosurgery (RMES), Johns Hopkins University School of Medicine (JSS, LY, AIE), Baltimore, MD; School of Medicine (NK), University of Connecticut, Farmington, CT
| | - Matthew E Peters
- Albert Einstein College of Medicine (SK), New York, NY; Departments of Psychiatry and Behavioral Sciences (LNR, BRB, LFB, MEP) and Neurology and Neurosurgery (RMES), Johns Hopkins University School of Medicine (JSS, LY, AIE), Baltimore, MD; School of Medicine (NK), University of Connecticut, Farmington, CT
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Wu F, Li X, Guo YN, Yan LZ, He RJ, Xu YH. Effects of insomnia treatments on cognitive function: A meta-analysis of randomized controlled trials. Psychiatry Res 2024; 342:116236. [PMID: 39427578 DOI: 10.1016/j.psychres.2024.116236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2024] [Revised: 09/15/2024] [Accepted: 10/14/2024] [Indexed: 10/22/2024]
Abstract
BACKGROUND Globally, insomnia has been shown to impact cognitive function, which has prompted the exploration of effective treatments to enhance cognitive outcomes. Both pharmacological and non-pharmacological interventions vary in their effects, indicating that further research for optimized therapeutic strategies is needed. METHODS Searches of PubMed, EMBASE, Web of Science, the Cochrane Library, and PsychInfo from database inception until August 2024 were conducted to identify relevant randomized controlled studies investigating the impacts of insomnia treatments on cognitive function. The standardized mean difference (SMD) and 95% confidence interval (CI) were calculated for all studies. Sensitivity analysis, publication bias, and meta-regression were performed. RESULTS A total of 14,829 records were retrieved, with 24 randomized controlled studies assessing the impact of insomnia treatment on cognition. Pooled analysis indicated that non-pharmacological interventions significantly enhanced cognitive function (SMD: 0.27, 95% CI: 0.04-0.49, p = 0.019), with notable improvements observed in memory (SMD: 1.18, 95% CI: 0.25-2.12, p = 0.013), attention (SMD: 0.32, 95% CI: 0.15-0.50, p < 0.001), and daily living activities (SMD: 0.29, 95% CI: 0.20-0.39, p < 0.001) based on self-reported measures. Longer follow-up periods were associated with more pronounced cognitive benefits (SMD: 0.34, 95% CI: 0.14-0.54, p = 0.001). CONCLUSIONS The critical role of insomnia treatments, particularly non-pharmacological interventions, in improving cognitive function is highlighted, emphasizing the importance of tailored therapeutic approaches to optimize cognitive outcomes and overall well-being.
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Affiliation(s)
- Fang Wu
- Department of Sleep Medicine, Second Affiliated Hospital of Xinxiang Medical University; Henan Collaborative Innovation Center for Prevention and Treatment of Mental Disorders; Brain Institute, Henan Academy of Innovations in Medical Science, Xinxiang, PR China
| | - Xiao Li
- Department of Sleep Medicine, Second Affiliated Hospital of Xinxiang Medical University; Henan Collaborative Innovation Center for Prevention and Treatment of Mental Disorders; Brain Institute, Henan Academy of Innovations in Medical Science, Xinxiang, PR China
| | - Ya-Nan Guo
- Department of Sleep Medicine, Second Affiliated Hospital of Xinxiang Medical University; Henan Collaborative Innovation Center for Prevention and Treatment of Mental Disorders; Brain Institute, Henan Academy of Innovations in Medical Science, Xinxiang, PR China
| | - Ling-Zhao Yan
- Department of Sleep Medicine, Second Affiliated Hospital of Xinxiang Medical University; Henan Collaborative Innovation Center for Prevention and Treatment of Mental Disorders; Brain Institute, Henan Academy of Innovations in Medical Science, Xinxiang, PR China
| | - Rong-Jie He
- Department of Sleep Medicine, Second Affiliated Hospital of Xinxiang Medical University; Henan Collaborative Innovation Center for Prevention and Treatment of Mental Disorders; Brain Institute, Henan Academy of Innovations in Medical Science, Xinxiang, PR China
| | - Ya-Hui Xu
- Department of Sleep Medicine, Second Affiliated Hospital of Xinxiang Medical University; Henan Collaborative Innovation Center for Prevention and Treatment of Mental Disorders; Brain Institute, Henan Academy of Innovations in Medical Science, Xinxiang, PR China.
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Gao C, Scullin MK. Objective and Subjective Intraindividual Variability in Sleep: Predisposing Factors and Health Consequences. Psychosom Med 2024; 86:298-306. [PMID: 38439637 DOI: 10.1097/psy.0000000000001301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/06/2024]
Abstract
OBJECTIVE We investigated the factors that predispose or precipitate greater intraindividual variability (IIV) in sleep. We further examined the potential consequences of IIV on overall sleep quality and health outcomes, including whether these relationships were found in both self-reported and actigraphy-measured sleep IIV. METHODS In Study 1, 699 US adults completed a Sleep Intra-Individual Variability Questionnaire and self-reported psychosocial, sleep quality, and health outcomes. In Study 2, 100 university students wore actigraphy and completed psychosocial, sleep, and health surveys at multiple timepoints. RESULTS In cross-sectional analyses that controlled for mean sleep duration, predisposing/precipitating factors to greater IIV were being an underrepresented racial/ethnic minority (Study 1: F = 13.95, p < .001; Study 2: F = 7.03, p = .009), having greater stress (Study 2: r values ≥ 0.32, p values ≤ .002) or trait vulnerability to stress (Study 1: r values ≥ 0.15, p values < .001), and showing poorer time management (Study 1: r values ≤ -0.12, p values ≤ .004; Study 2: r values ≤ -0.23, p values ≤ .028). In addition, both studies showed that greater sleep IIV was associated with decreased overall sleep quality, independent of mean sleep duration (Study 1: r values ≥ 0.20, p values < .001; Study 2: r values ≥ 0.33, p values ≤ .001). Concordance across subjective and objective IIV measures was modest ( r values = 0.09-0.35) and similar to concordance observed for subjective-objective mean sleep duration measures. CONCLUSION Risk for irregular sleep patterns is increased in specific demographic groups and may be precipitated by, or contribute to, higher stress and time management inefficiencies. Irregular sleep may lead to poor sleep quality and adverse health outcomes, independent of mean sleep duration, underscoring the importance of addressing sleep consistency.
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Affiliation(s)
- Chenlu Gao
- From the Department of Psychology and Neuroscience (Gao, Scullin), Baylor University, Waco, Texas; Department of Anesthesia, Critical Care and Pain Medicine (Gao), Massachusetts General Hospital; Division of Sleep and Circadian Disorders (Gao), Brigham and Women's Hospital; and Division of Sleep Medicine (Gao), Harvard Medical School, Boston, Massachusetts
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Zhang Q, Hou YZ, Ding H, Shu YP, Li J, Chen XZ, Li JL, Lou Q, Wang DX. Alterations of sleep deprivation on brain function: A coordinate-based resting-state functional magnetic resonance imaging meta-analysis. World J Psychiatry 2024; 14:315-329. [PMID: 38464778 PMCID: PMC10921288 DOI: 10.5498/wjp.v14.i2.315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 12/21/2023] [Accepted: 01/03/2024] [Indexed: 02/04/2024] Open
Abstract
BACKGROUND Sleep deprivation is a prevalent issue that impacts cognitive function. Although numerous neuroimaging studies have explored the neural correlates of sleep loss, inconsistencies persist in the reported results, necessitating an investigation into the consistent brain functional changes resulting from sleep loss. AIM To establish the consistency of brain functional alterations associated with sleep deprivation through systematic searches of neuroimaging databases. Two meta-analytic methods, signed differential mapping (SDM) and activation likelihood estimation (ALE), were employed to analyze functional magnetic resonance imaging (fMRI) data. METHODS A systematic search performed according to PRISMA guidelines was conducted across multiple databases through July 29, 2023. Studies that met specific inclu-sion criteria, focused on healthy subjects with acute sleep deprivation and reported whole-brain functional data in English were considered. A total of 21 studies were selected for SDM and ALE meta-analyses. RESULTS Twenty-one studies, including 23 experiments and 498 subjects, were included. Compared to pre-sleep deprivation, post-sleep deprivation brain function was associated with increased gray matter in the right corpus callosum and decreased activity in the left medial frontal gyrus and left inferior parietal lobule. SDM revealed increased brain functional activity in the left striatum and right central posterior gyrus and decreased activity in the right cerebellar gyrus, left middle frontal gyrus, corpus callosum, and right cuneus. CONCLUSION This meta-analysis consistently identified brain regions affected by sleep deprivation, notably the left medial frontal gyrus and corpus callosum, shedding light on the neuropathology of sleep deprivation and offering insights into its neurological impact.
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Affiliation(s)
- Qin Zhang
- Department of Radiology, The Second People’s Hospital of Guizhou Province, Guiyang 550000, Guizhou Province, China
- Department of Radiology, Guizhou Provincial People’s Hospital, Guiyang 550000, Guizhou Province, China
| | - Yong-Zhe Hou
- Department of Psychiatry of Women and Children, The Second People’s Hospital of Guizhou Province, Guiyang 550000, Guizhou Province, China
| | - Hui Ding
- Department of Radiology, The Second People’s Hospital of Guizhou Province, Guiyang 550000, Guizhou Province, China
| | - Yan-Ping Shu
- Department of Psychiatry of Women and Children, The Second People’s Hospital of Guizhou Province, Guiyang 550000, Guizhou Province, China
| | - Jing Li
- Department of Radiology, The Second People’s Hospital of Guizhou Province, Guiyang 550000, Guizhou Province, China
| | - Xi-Zhao Chen
- Department of Radiology, The Second People’s Hospital of Guizhou Province, Guiyang 550000, Guizhou Province, China
| | - Jia-Lin Li
- Medical Humanities College, Guizhou Medical University, Guiyang 550000, Guizhou Province, China
| | - Qin Lou
- Department of Radiology, The Second People’s Hospital of Guizhou Province, Guiyang 550000, Guizhou Province, China
| | - Dai-Xing Wang
- Department of Radiology, The Second People’s Hospital of Guizhou Province, Guiyang 550000, Guizhou Province, China
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Eyob E, Shaw JS, Bakker A, Munro C, Spira A, Wu M, Rabinowitz JA, Peters M, Wanigatunga S, Zipunnikov V, Thompson R, Burhanullah MH, Leoutsakos JM, Rosenberg P, Greenberg B. A Randomized-Controlled Trial Targeting Cognition in Early Alzheimer's Disease by Improving Sleep with Trazodone (REST). J Alzheimers Dis 2024; 101:S205-S215. [PMID: 39422935 DOI: 10.3233/jad-230635] [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: 10/19/2024]
Abstract
Alzheimer's disease (AD) is a leading cause of mortality and morbidity among aging populations worldwide. Despite arduous research efforts, treatment options for this devastating neurodegenerative disease are limited. Sleep disturbances, through their link to changes in neural excitability and impaired clearance of interstitial abnormal protein aggregates, are a key risk factor for the development of AD. Research also suggests that the neuroprotective effects of sleep are particularly active during slow wave sleep. Given the strong link between sleep disturbance and AD, targeting sleep in the prodromal stages of AD, such as in mild cognitive impairment (MCI), represents a promising avenue for slowing the onset of AD-related cognitive decline. In efforts to improve sleep in older individuals, several pharmacologic approaches have been employed, but many pose safety risks, concern for worsening cognitive function, and fail to effectively target slow wave sleep. Trazodone, a safe and widely used drug in the older adult population, has shown promise in inducing slow wave sleep in older adults, but requires more rigorous research to understand its effects on sleep and cognition in the prodromal stages of AD. In this review, we present the rationale and study design for our randomized, double-bind, placebo-controlled, crossover trial (NCT05282550) investigating the effects of trazodone on sleep and cognition in 100 older adults with amnestic MCI and sleep complaints.
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Affiliation(s)
- Estelle Eyob
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jacob S Shaw
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Arnold Bakker
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Cynthia Munro
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Adam Spira
- The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Mark Wu
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jill A Rabinowitz
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Matthew Peters
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Sarah Wanigatunga
- The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Vadim Zipunnikov
- The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Richard Thompson
- The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - M Haroon Burhanullah
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jeannie-Marie Leoutsakos
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Paul Rosenberg
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Barry Greenberg
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Kashchenko SA, Eranova AA, Chuguy EV. [Glymphatic dysfunction and sleep disorders: indirect effects on Alzheimer's disease]. Zh Nevrol Psikhiatr Im S S Korsakova 2024; 124:7-12. [PMID: 38676671 DOI: 10.17116/jnevro20241240417] [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: 04/29/2024]
Abstract
Modern research raises the question of the potentially significant role of glymphatic dysfunction in the development of neurodegeneration and pathological aging. The exact molecular mechanisms are not yet fully understood, but there is ample evidence of a link between sleep deprivation and decreased clearance of β-amyloid and other neurotoxin proteins that are associated with the development of neurodegenerative diseases, particularly Alzheimer's disease. The review analyzes current scientific information in this area of research, describes the latest scientific discoveries of the features of the glymphatic system, and also illustrates studies of markers that presumably indicate a deterioration in the glymphatic system. The relationship between sleep deprivation and pathophysiological mechanisms associated with neurodegenerative diseases is considered, and potential targets that can be used to treat or delay the development of these disorders are noted.
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Affiliation(s)
- S A Kashchenko
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - A A Eranova
- Rostov State Medical University, Rostov-on-Don, Russia
| | - E V Chuguy
- Siberian State Medical University, Tomsk, Russia
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Carlson EJ, Wilckens KA, Wheeler ME. The Interactive Role of Sleep and Circadian Rhythms in Episodic Memory in Older Adults. J Gerontol A Biol Sci Med Sci 2023; 78:1844-1852. [PMID: 37167439 PMCID: PMC10562893 DOI: 10.1093/gerona/glad112] [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: 08/08/2022] [Indexed: 05/13/2023] Open
Abstract
Adequate sleep is essential for healthy physical, emotional, and cognitive functioning, including memory. However, sleep ability worsens with increasing age. Older adults on average have shorter sleep durations and more disrupted sleep compared with younger adults. Age-related sleep changes are thought to contribute to age-related deficits in episodic memory. Nonetheless, the nature of the relationship between sleep and episodic memory deficits in older adults is still unclear. Further complicating this relationship are age-related changes in circadian rhythms such as the shift in chronotype toward morningness and decreased circadian stability, which may influence memory abilities as well. Most sleep and cognitive aging studies do not account for circadian factors, making it unclear whether age-related and sleep-related episodic memory deficits are partly driven by interactions with circadian rhythms. This review will focus on age-related changes in sleep and circadian rhythms and evidence that these factors interact to affect episodic memory, specifically encoding and retrieval. Open questions, methodological considerations, and clinical implications for diagnosis and monitoring of age-related memory impairments are discussed.
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Affiliation(s)
- Elyse J Carlson
- School of Psychology, Georgia Institute of Technology, Atlanta, Georgia, USA
| | - Kristine A Wilckens
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Mark E Wheeler
- School of Psychology, Georgia Institute of Technology, Atlanta, Georgia, USA
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Pase MP, Harrison S, Misialek JR, Kline CE, Cavuoto M, Baril AA, Yiallourou S, Bisson A, Himali D, Leng Y, Yang Q, Seshadri S, Beiser A, Gottesman RF, Redline S, Lopez O, Lutsey PL, Yaffe K, Stone KL, Purcell SM, Himali JJ. Sleep Architecture, Obstructive Sleep Apnea, and Cognitive Function in Adults. JAMA Netw Open 2023; 6:e2325152. [PMID: 37462968 PMCID: PMC10354680 DOI: 10.1001/jamanetworkopen.2023.25152] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 06/07/2023] [Indexed: 07/21/2023] Open
Abstract
Importance Good sleep is essential for health, yet associations between sleep and dementia risk remain incompletely understood. The Sleep and Dementia Consortium was established to study associations between polysomnography (PSG)-derived sleep and the risk of dementia and related cognitive and brain magnetic resonance imaging endophenotypes. Objective To investigate association of sleep architecture and obstructive sleep apnea (OSA) with cognitive function in the Sleep and Dementia Consortium. Design, Setting, and Participants The Sleep and Dementia Consortium curated data from 5 population-based cohorts across the US with methodologically consistent, overnight, home-based type II PSG and neuropsychological assessments over 5 years of follow-up: the Atherosclerosis Risk in Communities study, Cardiovascular Health Study, Framingham Heart Study (FHS), Osteoporotic Fractures in Men Study, and Study of Osteoporotic Fractures. Sleep metrics were harmonized centrally and then distributed to participating cohorts for cohort-specific analysis using linear regression; study-level estimates were pooled in random effects meta-analyses. Results were adjusted for demographic variables, the time between PSG and neuropsychological assessment (0-5 years), body mass index, antidepressant use, and sedative use. There were 5946 participants included in the pooled analyses without stroke or dementia. Data were analyzed from March 2020 to June 2023. Exposures Measures of sleep architecture and OSA derived from in-home PSG. Main Outcomes and Measures The main outcomes were global cognitive composite z scores derived from principal component analysis, with cognitive domains investigated as secondary outcomes. Higher scores indicated better performance. Results Across cohorts, 5946 adults (1875 females [31.5%]; mean age range, 58-89 years) were included. The median (IQR) wake after sleep onset time ranged from 44 (27-73) to 101 (66-147) minutes, and the prevalence of moderate to severe OSA ranged from 16.9% to 28.9%. Across cohorts, higher sleep maintenance efficiency (pooled β per 1% increase, 0.08; 95% CI, 0.03 to 0.14; P < .01) and lower wake after sleep onset (pooled β per 1-min increase, -0.07; 95% CI, -0.13 to -0.01 per 1-min increase; P = .02) were associated with better global cognition. Mild to severe OSA (apnea-hypopnea index [AHI] ≥5) was associated with poorer global cognition (pooled β, -0.06; 95% CI, -0.11 to -0.01; P = .01) vs AHI less than 5; comparable results were found for moderate to severe OSA (pooled β, -0.06; 95% CI, -0.11 to -0.01; P = .02) vs AHI less than 5. Differences in sleep stages were not associated with cognition. Conclusions and Relevance This study found that better sleep consolidation and the absence of OSA were associated with better global cognition over 5 years of follow-up. These findings suggest that the role of interventions to improve sleep for maintaining cognitive function requires investigation.
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Affiliation(s)
- Matthew P. Pase
- Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia
- Harvard T.H. Chan School of Public Health, Massachusetts
- Framingham Heart Study, Framingham, Massachusetts
| | | | - Jeffrey R. Misialek
- Division of Epidemiology and Community Health, University of Minnesota, Minneapolis
| | - Christopher E. Kline
- Department of Health and Human Development, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Marina Cavuoto
- Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia
| | - Andree-Ann Baril
- Framingham Heart Study, Framingham, Massachusetts
- Douglas Mental Health University Institute, McGill University, Montreal, Quebec, Canada
| | - Stephanie Yiallourou
- Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia
| | - Alycia Bisson
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, Massachusetts
- Department of Medicine, Harvard Medical School, Boston, Massachusetts
| | - Dibya Himali
- Framingham Heart Study, Framingham, Massachusetts
| | - Yue Leng
- Department of Psychiatry and Behavioral Sciences, University of California
| | - Qiong Yang
- Department of Neurology, Boston University School of Medicine, Boston, Massachusetts
- Department of Biostatistics, Boston University School of Public Health, Boston, Massachusetts
| | - Sudha Seshadri
- Framingham Heart Study, Framingham, Massachusetts
- Department of Neurology, Boston University School of Medicine, Boston, Massachusetts
- Glenn Biggs Institute for Alzheimer’s and Neurodegenerative Diseases, University of Texas Health Science Center San Antonio
| | - Alexa Beiser
- Framingham Heart Study, Framingham, Massachusetts
- Department of Neurology, Boston University School of Medicine, Boston, Massachusetts
- Department of Biostatistics, Boston University School of Public Health, Boston, Massachusetts
| | - Rebecca F. Gottesman
- National Institute of Neurological Disorders and Stroke Intramural Research Program, Bethesda, Maryland
| | - Susan Redline
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, Massachusetts
- Department of Medicine, Harvard Medical School, Boston, Massachusetts
| | - Oscar Lopez
- Department of Neurology, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Pamela L. Lutsey
- Division of Epidemiology and Community Health, University of Minnesota, Minneapolis
| | - Kristine Yaffe
- Department of Psychiatry, University of California, San Francisco
- Department of Neurology, University of California, San Francisco
- Department of Epidemiology, University of California, San Francisco
| | - Katie L. Stone
- California Pacific Medical Center, Research Institute, San Francisco
- Department of Epidemiology and Biostatistics, University of California, San Francisco
| | - Shaun M. Purcell
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, Massachusetts
- Department of Psychiatry, Brigham and Women’s Hospital, Boston, Massachusetts
| | - Jayandra J. Himali
- Framingham Heart Study, Framingham, Massachusetts
- Department of Neurology, Boston University School of Medicine, Boston, Massachusetts
- Department of Biostatistics, Boston University School of Public Health, Boston, Massachusetts
- Glenn Biggs Institute for Alzheimer’s and Neurodegenerative Diseases, University of Texas Health Science Center San Antonio
- Department of Population Health Sciences, University of Texas Health Science Center, San Antonio
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Associations between objectively measured sleep parameters and cognition in healthy older adults: A meta-analysis. Sleep Med Rev 2023; 67:101734. [PMID: 36577339 DOI: 10.1016/j.smrv.2022.101734] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 11/03/2022] [Accepted: 12/05/2022] [Indexed: 12/14/2022]
Abstract
Multiple studies have examined associations between sleep and cognition in older adults, but a majority of these depend on self-reports on sleep and utilize cognitive tests that assess overall cognitive function. The current meta-analysis involved 72 independent studies and sought to quantify associations between objectively measured sleep parameters and cognitive performance in healthy older adults. Both sleep macrostructure (e.g., sleep duration, continuity, and stages) and microstructure (e.g., slow wave activity and spindle activity) were evaluated. For macrostructure, lower restlessness at night was associated with better memory performance (r = 0.43, p = 0.02), while lower sleep onset latency was associated with better executive functioning (r = 0.28, p = 0.03). Greater relative amount of N2 and REM sleep, but not N3, positively correlated with cognitive performance. The association between microstructure and cognition in older adults was marginally significant. This relationship was moderated by age (z = 0.07, p < 0.01), education (z = 0.26, p = 0.03), and percentage of female participants (z = 0.01, p < 0.01). The current meta-analysis emphasizes the importance of considering objective sleep measures to understand the relationship between sleep and cognition in healthy older adults. These results also form a base from which researchers using wearable sleep technology and measuring behavior through computerized testing tools can evaluate their findings.
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Gao C, Scullin MK. Longitudinal trajectories of spectral power during sleep in middle-aged and older adults. AGING BRAIN 2023; 3:100058. [PMID: 36911257 PMCID: PMC9997163 DOI: 10.1016/j.nbas.2022.100058] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 11/09/2022] [Accepted: 11/30/2022] [Indexed: 12/23/2022] Open
Abstract
Age-related changes in sleep appear to contribute to cognitive aging and dementia. However, most of the current understanding of sleep across the lifespan is based on cross-sectional evidence. Using data from the Sleep Heart Health Study, we investigated longitudinal changes in sleep micro-architecture, focusing on whether such age-related changes are experienced uniformly across individuals. Participants were 2,202 adults (ageBaseline = 62.40 ± 10.38, 55.36 % female, 87.92 % White) who completed home polysomnography assessment at two study visits, which were 5.23 years apart (range: 4-7 years). We analyzed NREM and REM spectral power density for each 0.5 Hz frequency bin, including slow oscillation (0.5-1 Hz), delta (1-4 Hz), theta (4-8 Hz), alpha (8-12 Hz), sigma (12-15 Hz), and beta-1 (15-20 Hz) bands. Longitudinal comparisons showed a 5-year decline in NREM delta (p <.001) and NREM sigma power density (p <.001) as well as a 5-year increase in theta power density during NREM (p =.001) and power density for all frequency bands during REM sleep (ps < 0.05). In contrast to the notion that sleep declines linearly with advancing age, longitudinal trajectories varied considerably across individuals. Within individuals, the 5-year changes in NREM and REM power density were strongly correlated (slow oscillation: r = 0.46; delta: r = 0.67; theta r = 0.78; alpha r = 0.66; sigma: r = 0.71; beta-1: r = 0.73; ps < 0.001). The convergence in the longitudinal trajectories of NREM and REM activity may reflect age-related neural de-differentiation and/or compensation processes. Future research should investigate the neurocognitive implications of longitudinal changes in sleep micro-architecture and test whether interventions for improving key sleep micro-architecture features (such as NREM delta and sigma activity) also benefit cognition over time.
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Affiliation(s)
- Chenlu Gao
- Department of Psychology and Neuroscience, Baylor University, Waco, TX, USA.,Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, Boston, MA, USA.,Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA.,Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Michael K Scullin
- Department of Psychology and Neuroscience, Baylor University, Waco, TX, USA
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11
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Sleeping poorly is robustly associated with a tendency to engage in spontaneous waking thought. Conscious Cogn 2022; 105:103401. [PMID: 36193601 DOI: 10.1016/j.concog.2022.103401] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 08/15/2022] [Accepted: 08/21/2022] [Indexed: 01/27/2023]
Abstract
We spend approximately-one third of our lives sleeping, and spontaneous thoughts dominate around 20-50% of our waking life, but little is known about the relation between the two. Studies examining this relationship measured only certain aspects of sleep and certain forms of spontaneous thought, which is problematic given the heterogeneity of both conceptions. The scarce literature suggests that disturbed sleep and the frequency of spontaneous waking thoughts are associated, however this could be caused by shared variance with negative affect. We report a comprehensive survey study with a large range of self-reported sleep and spontaneous thought measures (N = 236), showing that poorer sleep quality, more daytime-sleepiness, and more insomnia symptoms, consistently predicted higher tendencies to engage in disruptive spontaneous thoughts, independently of trait negative affect, age and gender. Contrarily, only daytime sleepiness predicted positive-constructive daydreaming. Findings underscore the role of sleep for spontaneous cognition tendencies.
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12
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Etholén A, Pietiläinen O, Kouvonen A, Hänninen M, Rahkonen O, Lallukka T. Trajectories of Insomnia Symptoms Among Aging Employees and Their Associations With Memory, Learning Ability, and Concentration After Retirement - A Prospective Cohort Study (2000-2017). J Aging Health 2022; 34:916-928. [PMID: 35482013 PMCID: PMC9483690 DOI: 10.1177/08982643221078740] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Objectives We applied a person-oriented approach and used latent class linear mixed
models to identify sleep trajectories that explain memory, concentration,
and learning ability problems after retirement. Methods Data consist of prospective surveys from four phases of the Helsinki Health
Study between 2000–2017 (n = 3748, aged 55–77 years, 80% women). Multinomial
regression was used to examine the associations between sleep trajectories
and cognitive function, adjusting for sociodemographic, health-related
behavior, and health factor covariates. Results Among statutory retirees, three latent group trajectories of insomnia-related
symptoms were identified: stable low, decreasing, and increasing. Among
those who had retired for disability reasons, we identified one additional
latent group trajectory: stable high. Insomnia symptoms were associated with
worse cognitive function. Discussion Early detection of insomnia symptoms would be a potential intervention point
to improve both sleep quality and prevent cognitive decline in later life.
However, intervention studies are needed.
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Affiliation(s)
- Antti Etholén
- Department of Public Health, 176449University of Helsinki, Helsinki, Finland
| | - Olli Pietiläinen
- Department of Public Health, 176449University of Helsinki, Helsinki, Finland
| | - Anne Kouvonen
- Faculty of Social Sciences, 176449University of Helsinki, Helsinki, Finland.,Centre for Public Health, Queen's University Belfast, Belfast, UK
| | - Mirja Hänninen
- Department of Public Health, 176449University of Helsinki, Helsinki, Finland
| | - Ossi Rahkonen
- Department of Public Health, 176449University of Helsinki, Helsinki, Finland
| | - Tea Lallukka
- Department of Public Health, 176449University of Helsinki, Helsinki, Finland
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13
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Hoedlmoser K, Peigneux P, Rauchs G. Recent advances in memory consolidation and information processing during sleep. J Sleep Res 2022; 31:e13607. [DOI: 10.1111/jsr.13607] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 03/25/2022] [Accepted: 03/25/2022] [Indexed: 12/20/2022]
Affiliation(s)
- Kerstin Hoedlmoser
- Department of Psychology, Centre for Cognitive Neuroscience (CCNS), Laboratory for “Sleep, Cognition and Consciousness Research” University of Salzburg Salzburg Austria
| | - Philippe Peigneux
- UR2NF – Neuropsychology and Functional Neuroimaging Research Unit affiliated at CRCN – Centre for Research in Cognition and Neurosciences and UNI – ULB Neuroscience Institute Bruxelles Belgium
| | - Géraldine Rauchs
- UNICAEN, INSERM, U1237, PhIND “Physiopathology and Imaging of Neurological Disorders”, Institut Blood and Brain @ Caen‐Normandie Normandie Univ Caen France
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14
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Arapova Y, Popov I, Shikhliarova A, Rostorguev E, Kuznetsova N, Protasova T. The study of cognitive functions and the brain electrical activity in wakefulness and night sleep in patients with lobe tumors. Zh Nevrol Psikhiatr Im S S Korsakova 2022; 122:106-111. [DOI: 10.17116/jnevro2022122031106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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15
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Leong RLF, Lo JC, Chee MWL. Sleep-dependent prospective memory consolidation is impaired with aging. Sleep 2021; 44:zsab069. [PMID: 33755184 PMCID: PMC8436136 DOI: 10.1093/sleep/zsab069] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 03/01/2021] [Indexed: 11/12/2022] Open
Abstract
STUDY OBJECTIVES Existing literature suggests that sleep-dependent memory consolidation is impaired in older adults but may be preserved for personally relevant information. Prospective memory (PM) involves remembering to execute future intentions in a timely manner and has behavioral importance. As previous work suggests that N3 sleep is important for PM in young adults, we investigated if the role of N3 sleep in PM consolidation would be maintained in older adults. METHODS Forty-nine young adults (mean age ± SD: 21.8 ± 1.61 years) and 49 healthy older adults (mean age ± SD: 65.7 ± 6.30 years) were randomized into sleep and wake groups. After a semantic categorization task, participants encoded intentions comprising four related and four unrelated cue-action pairs. They were instructed to remember to perform these actions in response to cue words presented during a second semantic categorization task 12 h later that encompassed either daytime wake (09:00 am-21:00 pm) or overnight sleep with polysomnography (21:00 pm-09:00 am). RESULTS The significant condition × age group × relatedness interaction suggested that the sleep benefit on PM intentions varied according to age group and relatedness (p = 0.01). For related intentions, sleep relative to wake benefitted young adults' performance (p < 0.001) but not older adults (p = 0.30). For unrelated intentions, sleep did not improve PM for either age group. While post-encoding N3 was significantly associated with related intentions' execution in young adults (r = 0.43, p = 0.02), this relationship was not found for older adults (r = -0.07, p = 0.763). CONCLUSIONS The age-related impairment of sleep-dependent memory consolidation extends to PM. Our findings add to an existing body of work suggesting that the link between sleep and memory is functionally weakened in older adulthood.
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Affiliation(s)
- Ruth L F Leong
- Centre for Sleep and Cognition, Human Potential Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - June C Lo
- Centre for Sleep and Cognition, Human Potential Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Michael W L Chee
- Centre for Sleep and Cognition, Human Potential Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
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16
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Hokett E, Arunmozhi A, Campbell J, Verhaeghen P, Duarte A. A systematic review and meta-analysis of individual differences in naturalistic sleep quality and episodic memory performance in young and older adults. Neurosci Biobehav Rev 2021; 127:675-688. [PMID: 34000349 PMCID: PMC8330880 DOI: 10.1016/j.neubiorev.2021.05.010] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 05/05/2021] [Accepted: 05/11/2021] [Indexed: 01/20/2023]
Abstract
Better sleep quality has been associated with better episodic memory performance in young adults. However, the strength of sleep-memory associations in aging has not been well characterized. It is also unknown whether factors such as sleep measurement method (e.g., polysomnography, actigraphy, self-report), sleep parameters (e.g., slow wave sleep, sleep duration), or memory task characteristics (e.g., verbal, pictorial) impact the strength of sleep-memory associations. Here, we assessed if the aforementioned factors modulate sleep-memory relationships. Across age groups, sleep-memory associations were similar for sleep measurement methods, however, associations were stronger for PSG than self-report. Age group moderated sleep-memory associations for certain sleep parameters. Specifically, young adults demonstrated stronger positive sleep-memory associations for slow wave sleep than the old, while older adults demonstrated stronger negative associations between greater wake after sleep onset and poorer memory performance than the young. Collectively, these data show that young and older adults maintain similar strength in sleep-memory relationships, but age impacts the specific sleep correlates that contribute to these relationships.
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17
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Rodrigues NB, McIntyre RS, Lipsitz O, Cha DS, Cao B, Lee Y, Gill H, Lui LMW, Cubała WJ, Ho R, Shekotikhina M, Teopiz KM, Subramaniapillai M, Kratiuk K, Mansur RB, Rosenblat JD. Do sleep changes mediate the anti-depressive and anti-suicidal response of intravenous ketamine in treatment-resistant depression? J Sleep Res 2021; 31:e13400. [PMID: 34137095 DOI: 10.1111/jsr.13400] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 05/03/2021] [Accepted: 05/11/2021] [Indexed: 12/28/2022]
Abstract
Sleep disturbances are commonly reported in patients with treatment-resistant depression (TRD). Available data have shown that intravenous (IV) ketamine is an effective treatment for patients with TRD and growing data suggest ketamine may improve overall sleep architecture. In the present study, we evaluated whether changes in sleep symptoms mediated the anti-depressive and/or anti-suicidal effects of IV ketamine and whether improvement in sleep correlated with a higher likelihood of achieving response or remission. Adults with TRD received four infusions of IV ketamine at a community-based clinic. Total depressive symptom severity was measured with the Quick Inventory Depressive Symptoms Self-Report 16-Item (QIDS-SR16 ) at baseline and was repeated across four infusions. Suicidal ideation (SI) and four sleep symptoms were measured using the SI item and the five sleep items on the QIDS-SR16 . A total of 323 patients with TRD received IV ketamine. Self-reported improvements in insomnia, night-time restlessness, hypersomnia, early morning waking, and total sleep were significant partial mediators to the improvements observed in depression severity. Similarly, insomnia, night-time restlessness, early morning waking and total sleep improvements mediated the reduction of IV ketamine on SI. All sleep items, except for hypersomnia, were associated with an increased likelihood of achieving response or remission. Notably, each point improvement in total sleep score was significantly associated with achieving responder/remitter status (odds ratio 3.29, 95% confidence interval 2.00-5.41). Insomnia, sleep restlessness, early morning waking and total sleep improvements were significant mediators of antidepressant and anti-suicidal improvements in patients with TRD receiving IV ketamine.
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Affiliation(s)
- Nelson B Rodrigues
- Mood Disorders Psychopharmacology Unit, University Health Network, University of Toronto, Toronto, ON, Canada.,Canadian Rapid Treatment Center of Excellence, Mississauga, ON, Canada
| | - Roger S McIntyre
- Mood Disorders Psychopharmacology Unit, University Health Network, University of Toronto, Toronto, ON, Canada.,Canadian Rapid Treatment Center of Excellence, Mississauga, ON, Canada.,Brain and Cognition Discovery Foundation, Canada, University of Toronto, Toronto, ON, Canada
| | - Orly Lipsitz
- Mood Disorders Psychopharmacology Unit, University Health Network, University of Toronto, Toronto, ON, Canada.,Canadian Rapid Treatment Center of Excellence, Mississauga, ON, Canada
| | - Danielle S Cha
- Mood Disorders Psychopharmacology Unit, University Health Network, University of Toronto, Toronto, ON, Canada.,Canadian Rapid Treatment Center of Excellence, Mississauga, ON, Canada
| | - Bing Cao
- Key Laboratory of Cognition and Personality, Faculty of Psychology, Ministry of Education, Southwest University (SWU), Chongqing, China
| | - Yena Lee
- Mood Disorders Psychopharmacology Unit, University Health Network, University of Toronto, Toronto, ON, Canada.,Canadian Rapid Treatment Center of Excellence, Mississauga, ON, Canada
| | - Hartej Gill
- Mood Disorders Psychopharmacology Unit, University Health Network, University of Toronto, Toronto, ON, Canada.,Canadian Rapid Treatment Center of Excellence, Mississauga, ON, Canada
| | - Leanna M W Lui
- Mood Disorders Psychopharmacology Unit, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Wiesław J Cubała
- Department of Psychiatry, Medical University of Gdansk, Gdansk, Poland
| | - Roger Ho
- Department of Psychological Medicine, National University of Singapore, Singapore
| | | | - Kayla M Teopiz
- Mood Disorders Psychopharmacology Unit, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Mehala Subramaniapillai
- Mood Disorders Psychopharmacology Unit, University Health Network, University of Toronto, Toronto, ON, Canada.,Canadian Rapid Treatment Center of Excellence, Mississauga, ON, Canada
| | - Kevin Kratiuk
- Canadian Rapid Treatment Center of Excellence, Mississauga, ON, Canada.,Department of Physical Pharmacy, Poznan University of Medical Sciences, Poznan, Poland
| | - Rodrigo B Mansur
- Mood Disorders Psychopharmacology Unit, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Joshua D Rosenblat
- Mood Disorders Psychopharmacology Unit, University Health Network, University of Toronto, Toronto, ON, Canada.,Canadian Rapid Treatment Center of Excellence, Mississauga, ON, Canada.,Brain and Cognition Discovery Foundation, Canada, University of Toronto, Toronto, ON, Canada
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18
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Baril AA, Beiser AS, Mysliwiec V, Sanchez E, DeCarli CS, Redline S, Gottlieb DJ, Maillard P, Romero JR, Satizabal CL, Zucker JM, Seshadri S, Pase MP, Himali JJ. Slow-Wave Sleep and MRI Markers of Brain Aging in a Community-Based Sample. Neurology 2020; 96:e1462-e1469. [PMID: 33361258 DOI: 10.1212/wnl.0000000000011377] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 12/02/2020] [Indexed: 01/06/2023] Open
Abstract
OBJECTIVE To test the hypothesis that reduced slow-wave sleep, or N3 sleep, which is thought to underlie the restorative functions of sleep, is associated with MRI markers of brain aging, we evaluated this relationship in the community-based Framingham Heart Study Offspring cohort using polysomnography and brain MRI. METHODS We studied 492 participants (age 58.8 ± 8.8 years, 49.4% male) free of neurological diseases who completed a brain MRI scan and in-home overnight polysomnography to assess slow-wave sleep (absolute duration and percentage of total sleep). Volumes of total brain, total cortical, frontal cortical, subcortical gray matter, hippocampus, and white matter hyperintensities were investigated as a percentage of intracranial volume, and the presence of covert brain infarcts was evaluated. Linear and logistic regression models were adjusted for age, age squared, sex, time interval between polysomnography and MRI (3.3 ± 1.0 years), APOE ε4 carrier status, stroke risk factors, sleeping pill use, body mass index, and depression. RESULTS Less slow-wave sleep was associated with lower cortical brain volume (absolute duration, β [standard error] = 0.20 [0.08], p = 0.015; percentage, 0.16 [0.08], p = 0.044), lower subcortical brain volume (percentage, 0.03 [0.02], p = 0.034), and higher white matter hyperintensities volume (absolute duration, -0.12 [0.05], p = 0.010; percentage, -0.10 [0.04], p = 0.033). Slow-wave sleep duration was not associated with hippocampal volume or the presence of covert brain infarcts. CONCLUSION Loss of slow-wave sleep might facilitate accelerated brain aging, as evidence by its association with MRI markers suggestive of brain atrophy and injury. Alternatively, subtle injuries and accelerated aging might reduce the ability of the brain to produce slow-wave sleep.
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Affiliation(s)
- Andrée-Ann Baril
- From the Framingham Heart Study (A.-A.B., A.S.B., J.R.R., C.L.S., J.M.Z., S.S., M.P.P. J.J.H.); Department of Neurology (A.-A.B., A.S.B., C.L.S., S.S., J.J.H.), Boston University School of Medicine; Department of Biostatistics (A.S.B., J.J.H. ), Boston University School of Public Health, MA; Glenn Biggs Institute for Alzheimer's & Neurodegenerative Diseases (V.M., C.L.S., S.S., J.J.H.), and Department of Population Health Sciences (J.J.H.), University of Texas Health Sciences Center, San Antonio; Centre for Advanced Research in Sleep Medicine (E.S.), Hôpital du Sacré-Coeur de Montréal, CIUSSS-NIM; Department of Neuroscience (E.S.), Université de Montréal, Quebec, Canada; Department of Neurology (C.D., P.M.), and School of Medicine and Imaging of Dementia and Aging Laboratory, Center for Neuroscience (P.M.), University of California, Davis, Sacramento; Division of Sleep and Circadian Disorders (S.R., D.J.G.), Brigham & Women's Hospital; Beth Israel Deaconess Medical Center (S.R., D.J.G.); Division of Sleep Medicine Harvard Medical School, Boston, MA; VA Boston Healthcare System (D.J.G.), Boston, MA; Turner Institute for Brain and Mental Health (M.P.P.), School of Psychological Sciences, Monash University, Melbourne, VIC, Australia; and Harvard T.H. Chan School of Public Health (M.P.P.), Boston, MA.
| | - Alexa S Beiser
- From the Framingham Heart Study (A.-A.B., A.S.B., J.R.R., C.L.S., J.M.Z., S.S., M.P.P. J.J.H.); Department of Neurology (A.-A.B., A.S.B., C.L.S., S.S., J.J.H.), Boston University School of Medicine; Department of Biostatistics (A.S.B., J.J.H. ), Boston University School of Public Health, MA; Glenn Biggs Institute for Alzheimer's & Neurodegenerative Diseases (V.M., C.L.S., S.S., J.J.H.), and Department of Population Health Sciences (J.J.H.), University of Texas Health Sciences Center, San Antonio; Centre for Advanced Research in Sleep Medicine (E.S.), Hôpital du Sacré-Coeur de Montréal, CIUSSS-NIM; Department of Neuroscience (E.S.), Université de Montréal, Quebec, Canada; Department of Neurology (C.D., P.M.), and School of Medicine and Imaging of Dementia and Aging Laboratory, Center for Neuroscience (P.M.), University of California, Davis, Sacramento; Division of Sleep and Circadian Disorders (S.R., D.J.G.), Brigham & Women's Hospital; Beth Israel Deaconess Medical Center (S.R., D.J.G.); Division of Sleep Medicine Harvard Medical School, Boston, MA; VA Boston Healthcare System (D.J.G.), Boston, MA; Turner Institute for Brain and Mental Health (M.P.P.), School of Psychological Sciences, Monash University, Melbourne, VIC, Australia; and Harvard T.H. Chan School of Public Health (M.P.P.), Boston, MA
| | - Vincent Mysliwiec
- From the Framingham Heart Study (A.-A.B., A.S.B., J.R.R., C.L.S., J.M.Z., S.S., M.P.P. J.J.H.); Department of Neurology (A.-A.B., A.S.B., C.L.S., S.S., J.J.H.), Boston University School of Medicine; Department of Biostatistics (A.S.B., J.J.H. ), Boston University School of Public Health, MA; Glenn Biggs Institute for Alzheimer's & Neurodegenerative Diseases (V.M., C.L.S., S.S., J.J.H.), and Department of Population Health Sciences (J.J.H.), University of Texas Health Sciences Center, San Antonio; Centre for Advanced Research in Sleep Medicine (E.S.), Hôpital du Sacré-Coeur de Montréal, CIUSSS-NIM; Department of Neuroscience (E.S.), Université de Montréal, Quebec, Canada; Department of Neurology (C.D., P.M.), and School of Medicine and Imaging of Dementia and Aging Laboratory, Center for Neuroscience (P.M.), University of California, Davis, Sacramento; Division of Sleep and Circadian Disorders (S.R., D.J.G.), Brigham & Women's Hospital; Beth Israel Deaconess Medical Center (S.R., D.J.G.); Division of Sleep Medicine Harvard Medical School, Boston, MA; VA Boston Healthcare System (D.J.G.), Boston, MA; Turner Institute for Brain and Mental Health (M.P.P.), School of Psychological Sciences, Monash University, Melbourne, VIC, Australia; and Harvard T.H. Chan School of Public Health (M.P.P.), Boston, MA
| | - Erlan Sanchez
- From the Framingham Heart Study (A.-A.B., A.S.B., J.R.R., C.L.S., J.M.Z., S.S., M.P.P. J.J.H.); Department of Neurology (A.-A.B., A.S.B., C.L.S., S.S., J.J.H.), Boston University School of Medicine; Department of Biostatistics (A.S.B., J.J.H. ), Boston University School of Public Health, MA; Glenn Biggs Institute for Alzheimer's & Neurodegenerative Diseases (V.M., C.L.S., S.S., J.J.H.), and Department of Population Health Sciences (J.J.H.), University of Texas Health Sciences Center, San Antonio; Centre for Advanced Research in Sleep Medicine (E.S.), Hôpital du Sacré-Coeur de Montréal, CIUSSS-NIM; Department of Neuroscience (E.S.), Université de Montréal, Quebec, Canada; Department of Neurology (C.D., P.M.), and School of Medicine and Imaging of Dementia and Aging Laboratory, Center for Neuroscience (P.M.), University of California, Davis, Sacramento; Division of Sleep and Circadian Disorders (S.R., D.J.G.), Brigham & Women's Hospital; Beth Israel Deaconess Medical Center (S.R., D.J.G.); Division of Sleep Medicine Harvard Medical School, Boston, MA; VA Boston Healthcare System (D.J.G.), Boston, MA; Turner Institute for Brain and Mental Health (M.P.P.), School of Psychological Sciences, Monash University, Melbourne, VIC, Australia; and Harvard T.H. Chan School of Public Health (M.P.P.), Boston, MA
| | - Charles S DeCarli
- From the Framingham Heart Study (A.-A.B., A.S.B., J.R.R., C.L.S., J.M.Z., S.S., M.P.P. J.J.H.); Department of Neurology (A.-A.B., A.S.B., C.L.S., S.S., J.J.H.), Boston University School of Medicine; Department of Biostatistics (A.S.B., J.J.H. ), Boston University School of Public Health, MA; Glenn Biggs Institute for Alzheimer's & Neurodegenerative Diseases (V.M., C.L.S., S.S., J.J.H.), and Department of Population Health Sciences (J.J.H.), University of Texas Health Sciences Center, San Antonio; Centre for Advanced Research in Sleep Medicine (E.S.), Hôpital du Sacré-Coeur de Montréal, CIUSSS-NIM; Department of Neuroscience (E.S.), Université de Montréal, Quebec, Canada; Department of Neurology (C.D., P.M.), and School of Medicine and Imaging of Dementia and Aging Laboratory, Center for Neuroscience (P.M.), University of California, Davis, Sacramento; Division of Sleep and Circadian Disorders (S.R., D.J.G.), Brigham & Women's Hospital; Beth Israel Deaconess Medical Center (S.R., D.J.G.); Division of Sleep Medicine Harvard Medical School, Boston, MA; VA Boston Healthcare System (D.J.G.), Boston, MA; Turner Institute for Brain and Mental Health (M.P.P.), School of Psychological Sciences, Monash University, Melbourne, VIC, Australia; and Harvard T.H. Chan School of Public Health (M.P.P.), Boston, MA
| | - Susan Redline
- From the Framingham Heart Study (A.-A.B., A.S.B., J.R.R., C.L.S., J.M.Z., S.S., M.P.P. J.J.H.); Department of Neurology (A.-A.B., A.S.B., C.L.S., S.S., J.J.H.), Boston University School of Medicine; Department of Biostatistics (A.S.B., J.J.H. ), Boston University School of Public Health, MA; Glenn Biggs Institute for Alzheimer's & Neurodegenerative Diseases (V.M., C.L.S., S.S., J.J.H.), and Department of Population Health Sciences (J.J.H.), University of Texas Health Sciences Center, San Antonio; Centre for Advanced Research in Sleep Medicine (E.S.), Hôpital du Sacré-Coeur de Montréal, CIUSSS-NIM; Department of Neuroscience (E.S.), Université de Montréal, Quebec, Canada; Department of Neurology (C.D., P.M.), and School of Medicine and Imaging of Dementia and Aging Laboratory, Center for Neuroscience (P.M.), University of California, Davis, Sacramento; Division of Sleep and Circadian Disorders (S.R., D.J.G.), Brigham & Women's Hospital; Beth Israel Deaconess Medical Center (S.R., D.J.G.); Division of Sleep Medicine Harvard Medical School, Boston, MA; VA Boston Healthcare System (D.J.G.), Boston, MA; Turner Institute for Brain and Mental Health (M.P.P.), School of Psychological Sciences, Monash University, Melbourne, VIC, Australia; and Harvard T.H. Chan School of Public Health (M.P.P.), Boston, MA
| | - Daniel J Gottlieb
- From the Framingham Heart Study (A.-A.B., A.S.B., J.R.R., C.L.S., J.M.Z., S.S., M.P.P. J.J.H.); Department of Neurology (A.-A.B., A.S.B., C.L.S., S.S., J.J.H.), Boston University School of Medicine; Department of Biostatistics (A.S.B., J.J.H. ), Boston University School of Public Health, MA; Glenn Biggs Institute for Alzheimer's & Neurodegenerative Diseases (V.M., C.L.S., S.S., J.J.H.), and Department of Population Health Sciences (J.J.H.), University of Texas Health Sciences Center, San Antonio; Centre for Advanced Research in Sleep Medicine (E.S.), Hôpital du Sacré-Coeur de Montréal, CIUSSS-NIM; Department of Neuroscience (E.S.), Université de Montréal, Quebec, Canada; Department of Neurology (C.D., P.M.), and School of Medicine and Imaging of Dementia and Aging Laboratory, Center for Neuroscience (P.M.), University of California, Davis, Sacramento; Division of Sleep and Circadian Disorders (S.R., D.J.G.), Brigham & Women's Hospital; Beth Israel Deaconess Medical Center (S.R., D.J.G.); Division of Sleep Medicine Harvard Medical School, Boston, MA; VA Boston Healthcare System (D.J.G.), Boston, MA; Turner Institute for Brain and Mental Health (M.P.P.), School of Psychological Sciences, Monash University, Melbourne, VIC, Australia; and Harvard T.H. Chan School of Public Health (M.P.P.), Boston, MA
| | - Pauline Maillard
- From the Framingham Heart Study (A.-A.B., A.S.B., J.R.R., C.L.S., J.M.Z., S.S., M.P.P. J.J.H.); Department of Neurology (A.-A.B., A.S.B., C.L.S., S.S., J.J.H.), Boston University School of Medicine; Department of Biostatistics (A.S.B., J.J.H. ), Boston University School of Public Health, MA; Glenn Biggs Institute for Alzheimer's & Neurodegenerative Diseases (V.M., C.L.S., S.S., J.J.H.), and Department of Population Health Sciences (J.J.H.), University of Texas Health Sciences Center, San Antonio; Centre for Advanced Research in Sleep Medicine (E.S.), Hôpital du Sacré-Coeur de Montréal, CIUSSS-NIM; Department of Neuroscience (E.S.), Université de Montréal, Quebec, Canada; Department of Neurology (C.D., P.M.), and School of Medicine and Imaging of Dementia and Aging Laboratory, Center for Neuroscience (P.M.), University of California, Davis, Sacramento; Division of Sleep and Circadian Disorders (S.R., D.J.G.), Brigham & Women's Hospital; Beth Israel Deaconess Medical Center (S.R., D.J.G.); Division of Sleep Medicine Harvard Medical School, Boston, MA; VA Boston Healthcare System (D.J.G.), Boston, MA; Turner Institute for Brain and Mental Health (M.P.P.), School of Psychological Sciences, Monash University, Melbourne, VIC, Australia; and Harvard T.H. Chan School of Public Health (M.P.P.), Boston, MA
| | - Jose Rafael Romero
- From the Framingham Heart Study (A.-A.B., A.S.B., J.R.R., C.L.S., J.M.Z., S.S., M.P.P. J.J.H.); Department of Neurology (A.-A.B., A.S.B., C.L.S., S.S., J.J.H.), Boston University School of Medicine; Department of Biostatistics (A.S.B., J.J.H. ), Boston University School of Public Health, MA; Glenn Biggs Institute for Alzheimer's & Neurodegenerative Diseases (V.M., C.L.S., S.S., J.J.H.), and Department of Population Health Sciences (J.J.H.), University of Texas Health Sciences Center, San Antonio; Centre for Advanced Research in Sleep Medicine (E.S.), Hôpital du Sacré-Coeur de Montréal, CIUSSS-NIM; Department of Neuroscience (E.S.), Université de Montréal, Quebec, Canada; Department of Neurology (C.D., P.M.), and School of Medicine and Imaging of Dementia and Aging Laboratory, Center for Neuroscience (P.M.), University of California, Davis, Sacramento; Division of Sleep and Circadian Disorders (S.R., D.J.G.), Brigham & Women's Hospital; Beth Israel Deaconess Medical Center (S.R., D.J.G.); Division of Sleep Medicine Harvard Medical School, Boston, MA; VA Boston Healthcare System (D.J.G.), Boston, MA; Turner Institute for Brain and Mental Health (M.P.P.), School of Psychological Sciences, Monash University, Melbourne, VIC, Australia; and Harvard T.H. Chan School of Public Health (M.P.P.), Boston, MA
| | - Claudia L Satizabal
- From the Framingham Heart Study (A.-A.B., A.S.B., J.R.R., C.L.S., J.M.Z., S.S., M.P.P. J.J.H.); Department of Neurology (A.-A.B., A.S.B., C.L.S., S.S., J.J.H.), Boston University School of Medicine; Department of Biostatistics (A.S.B., J.J.H. ), Boston University School of Public Health, MA; Glenn Biggs Institute for Alzheimer's & Neurodegenerative Diseases (V.M., C.L.S., S.S., J.J.H.), and Department of Population Health Sciences (J.J.H.), University of Texas Health Sciences Center, San Antonio; Centre for Advanced Research in Sleep Medicine (E.S.), Hôpital du Sacré-Coeur de Montréal, CIUSSS-NIM; Department of Neuroscience (E.S.), Université de Montréal, Quebec, Canada; Department of Neurology (C.D., P.M.), and School of Medicine and Imaging of Dementia and Aging Laboratory, Center for Neuroscience (P.M.), University of California, Davis, Sacramento; Division of Sleep and Circadian Disorders (S.R., D.J.G.), Brigham & Women's Hospital; Beth Israel Deaconess Medical Center (S.R., D.J.G.); Division of Sleep Medicine Harvard Medical School, Boston, MA; VA Boston Healthcare System (D.J.G.), Boston, MA; Turner Institute for Brain and Mental Health (M.P.P.), School of Psychological Sciences, Monash University, Melbourne, VIC, Australia; and Harvard T.H. Chan School of Public Health (M.P.P.), Boston, MA
| | - Jared M Zucker
- From the Framingham Heart Study (A.-A.B., A.S.B., J.R.R., C.L.S., J.M.Z., S.S., M.P.P. J.J.H.); Department of Neurology (A.-A.B., A.S.B., C.L.S., S.S., J.J.H.), Boston University School of Medicine; Department of Biostatistics (A.S.B., J.J.H. ), Boston University School of Public Health, MA; Glenn Biggs Institute for Alzheimer's & Neurodegenerative Diseases (V.M., C.L.S., S.S., J.J.H.), and Department of Population Health Sciences (J.J.H.), University of Texas Health Sciences Center, San Antonio; Centre for Advanced Research in Sleep Medicine (E.S.), Hôpital du Sacré-Coeur de Montréal, CIUSSS-NIM; Department of Neuroscience (E.S.), Université de Montréal, Quebec, Canada; Department of Neurology (C.D., P.M.), and School of Medicine and Imaging of Dementia and Aging Laboratory, Center for Neuroscience (P.M.), University of California, Davis, Sacramento; Division of Sleep and Circadian Disorders (S.R., D.J.G.), Brigham & Women's Hospital; Beth Israel Deaconess Medical Center (S.R., D.J.G.); Division of Sleep Medicine Harvard Medical School, Boston, MA; VA Boston Healthcare System (D.J.G.), Boston, MA; Turner Institute for Brain and Mental Health (M.P.P.), School of Psychological Sciences, Monash University, Melbourne, VIC, Australia; and Harvard T.H. Chan School of Public Health (M.P.P.), Boston, MA
| | - Sudha Seshadri
- From the Framingham Heart Study (A.-A.B., A.S.B., J.R.R., C.L.S., J.M.Z., S.S., M.P.P. J.J.H.); Department of Neurology (A.-A.B., A.S.B., C.L.S., S.S., J.J.H.), Boston University School of Medicine; Department of Biostatistics (A.S.B., J.J.H. ), Boston University School of Public Health, MA; Glenn Biggs Institute for Alzheimer's & Neurodegenerative Diseases (V.M., C.L.S., S.S., J.J.H.), and Department of Population Health Sciences (J.J.H.), University of Texas Health Sciences Center, San Antonio; Centre for Advanced Research in Sleep Medicine (E.S.), Hôpital du Sacré-Coeur de Montréal, CIUSSS-NIM; Department of Neuroscience (E.S.), Université de Montréal, Quebec, Canada; Department of Neurology (C.D., P.M.), and School of Medicine and Imaging of Dementia and Aging Laboratory, Center for Neuroscience (P.M.), University of California, Davis, Sacramento; Division of Sleep and Circadian Disorders (S.R., D.J.G.), Brigham & Women's Hospital; Beth Israel Deaconess Medical Center (S.R., D.J.G.); Division of Sleep Medicine Harvard Medical School, Boston, MA; VA Boston Healthcare System (D.J.G.), Boston, MA; Turner Institute for Brain and Mental Health (M.P.P.), School of Psychological Sciences, Monash University, Melbourne, VIC, Australia; and Harvard T.H. Chan School of Public Health (M.P.P.), Boston, MA
| | - Matthew P Pase
- From the Framingham Heart Study (A.-A.B., A.S.B., J.R.R., C.L.S., J.M.Z., S.S., M.P.P. J.J.H.); Department of Neurology (A.-A.B., A.S.B., C.L.S., S.S., J.J.H.), Boston University School of Medicine; Department of Biostatistics (A.S.B., J.J.H. ), Boston University School of Public Health, MA; Glenn Biggs Institute for Alzheimer's & Neurodegenerative Diseases (V.M., C.L.S., S.S., J.J.H.), and Department of Population Health Sciences (J.J.H.), University of Texas Health Sciences Center, San Antonio; Centre for Advanced Research in Sleep Medicine (E.S.), Hôpital du Sacré-Coeur de Montréal, CIUSSS-NIM; Department of Neuroscience (E.S.), Université de Montréal, Quebec, Canada; Department of Neurology (C.D., P.M.), and School of Medicine and Imaging of Dementia and Aging Laboratory, Center for Neuroscience (P.M.), University of California, Davis, Sacramento; Division of Sleep and Circadian Disorders (S.R., D.J.G.), Brigham & Women's Hospital; Beth Israel Deaconess Medical Center (S.R., D.J.G.); Division of Sleep Medicine Harvard Medical School, Boston, MA; VA Boston Healthcare System (D.J.G.), Boston, MA; Turner Institute for Brain and Mental Health (M.P.P.), School of Psychological Sciences, Monash University, Melbourne, VIC, Australia; and Harvard T.H. Chan School of Public Health (M.P.P.), Boston, MA
| | - Jayandra J Himali
- From the Framingham Heart Study (A.-A.B., A.S.B., J.R.R., C.L.S., J.M.Z., S.S., M.P.P. J.J.H.); Department of Neurology (A.-A.B., A.S.B., C.L.S., S.S., J.J.H.), Boston University School of Medicine; Department of Biostatistics (A.S.B., J.J.H. ), Boston University School of Public Health, MA; Glenn Biggs Institute for Alzheimer's & Neurodegenerative Diseases (V.M., C.L.S., S.S., J.J.H.), and Department of Population Health Sciences (J.J.H.), University of Texas Health Sciences Center, San Antonio; Centre for Advanced Research in Sleep Medicine (E.S.), Hôpital du Sacré-Coeur de Montréal, CIUSSS-NIM; Department of Neuroscience (E.S.), Université de Montréal, Quebec, Canada; Department of Neurology (C.D., P.M.), and School of Medicine and Imaging of Dementia and Aging Laboratory, Center for Neuroscience (P.M.), University of California, Davis, Sacramento; Division of Sleep and Circadian Disorders (S.R., D.J.G.), Brigham & Women's Hospital; Beth Israel Deaconess Medical Center (S.R., D.J.G.); Division of Sleep Medicine Harvard Medical School, Boston, MA; VA Boston Healthcare System (D.J.G.), Boston, MA; Turner Institute for Brain and Mental Health (M.P.P.), School of Psychological Sciences, Monash University, Melbourne, VIC, Australia; and Harvard T.H. Chan School of Public Health (M.P.P.), Boston, MA
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19
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Muehlroth BE, Rasch B, Werkle-Bergner M. Episodic memory consolidation during sleep in healthy aging. Sleep Med Rev 2020; 52:101304. [DOI: 10.1016/j.smrv.2020.101304] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 03/03/2020] [Accepted: 03/04/2020] [Indexed: 11/29/2022]
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Sleep, rest-activity fragmentation and structural brain changes related to the ageing process. Curr Opin Behav Sci 2020. [DOI: 10.1016/j.cobeha.2019.11.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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21
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Muehlroth BE, Sander MC, Fandakova Y, Grandy TH, Rasch B, Lee Shing Y, Werkle-Bergner M. Memory quality modulates the effect of aging on memory consolidation during sleep: Reduced maintenance but intact gain. Neuroimage 2020; 209:116490. [PMID: 31883456 PMCID: PMC7068706 DOI: 10.1016/j.neuroimage.2019.116490] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 12/10/2019] [Accepted: 12/21/2019] [Indexed: 01/29/2023] Open
Abstract
Successful consolidation of associative memories relies on the coordinated interplay of slow oscillations and sleep spindles during non-rapid eye movement (NREM) sleep. This enables the transfer of labile information from the hippocampus to permanent memory stores in the neocortex. During senescence, the decline of the structural and functional integrity of the hippocampus and neocortical regions is paralleled by changes of the physiological events that stabilize and enhance associative memories during NREM sleep. However, the currently available evidence is inconclusive as to whether and under which circumstances memory consolidation is impacted during aging. To approach this question, 30 younger adults (19-28 years) and 36 older adults (63-74 years) completed a memory task based on scene-word associations. By tracing the encoding quality of participants' individual memory associations, we demonstrate that previous learning determines the extent of age-related impairments in memory consolidation. Specifically, the detrimental effects of aging on memory maintenance were greatest for mnemonic contents of intermediate encoding quality, whereas memory gain of poorly encoded memories did not differ by age. Ambulatory polysomnography (PSG) and structural magnetic resonance imaging (MRI) data were acquired to extract potential predictors of memory consolidation from each participant's NREM sleep physiology and brain structure. Partial Least Squares Correlation was used to identify profiles of interdependent alterations in sleep physiology and brain structure that are characteristic for increasing age. Across age groups, both the 'aged' sleep profile, defined by decreased slow-wave activity (0.5-4.5 Hz), and a reduced presence of slow oscillations (0.5-1 Hz), slow, and fast spindles (9-12.5 Hz; 12.5-16 Hz), as well as the 'aged' brain structure profile, characterized by gray matter reductions in the medial prefrontal cortex, thalamus, entorhinal cortex, and hippocampus, were associated with reduced memory maintenance. However, inter-individual differences in neither sleep nor structural brain integrity alone qualified as the driving force behind age differences in sleep-dependent consolidation in the present study. Our results underscore the need for novel and age-fair analytic tools to provide a mechanistic understanding of age differences in memory consolidation.
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Affiliation(s)
- Beate E Muehlroth
- Center for Lifespan Psychology, Max Planck Institute for Human Development, Lentzeallee 94, 14195, Berlin, Germany.
| | - Myriam C Sander
- Center for Lifespan Psychology, Max Planck Institute for Human Development, Lentzeallee 94, 14195, Berlin, Germany
| | - Yana Fandakova
- Center for Lifespan Psychology, Max Planck Institute for Human Development, Lentzeallee 94, 14195, Berlin, Germany
| | - Thomas H Grandy
- Center for Lifespan Psychology, Max Planck Institute for Human Development, Lentzeallee 94, 14195, Berlin, Germany
| | - Björn Rasch
- Department of Psychology, University of Fribourg, Rue P.-A.-de-Faucigny 2, 1701, Fribourg, Switzerland
| | - Yee Lee Shing
- Department of Developmental Psychology, Goethe University Frankfurt, Theodor-W.-Adorno-Platz 6, 60629, Frankfurt Am Main, Germany
| | - Markus Werkle-Bergner
- Center for Lifespan Psychology, Max Planck Institute for Human Development, Lentzeallee 94, 14195, Berlin, Germany.
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22
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Muehlroth BE, Werkle-Bergner M. Understanding the interplay of sleep and aging: Methodological challenges. Psychophysiology 2020; 57:e13523. [PMID: 31930523 DOI: 10.1111/psyp.13523] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 11/21/2019] [Accepted: 12/12/2019] [Indexed: 12/16/2022]
Abstract
In quest of new avenues to explain, predict, and treat pathophysiological conditions during aging, research on sleep and aging has flourished. Despite the great scientific potential to pinpoint mechanistic pathways between sleep, aging, and pathology, only little attention has been paid to the suitability of analytic procedures applied to study these interrelations. On the basis of electrophysiological sleep and structural brain data of healthy younger and older adults, we identify, illustrate, and resolve methodological core challenges in the study of sleep and aging. We demonstrate potential biases in common analytic approaches when applied to older populations. We argue that uncovering age-dependent alterations in the physiology of sleep requires the development of adjusted and individualized analytic procedures that filter out age-independent interindividual differences. Age-adapted methodological approaches are thus required to foster the development of valid and reliable biomarkers of age-associated cognitive pathologies.
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Affiliation(s)
- Beate E Muehlroth
- Center for Lifespan Psychology, Max Planck Institute for Human Development, Berlin, Germany
| | - Markus Werkle-Bergner
- Center for Lifespan Psychology, Max Planck Institute for Human Development, Berlin, Germany
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23
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Scullin MK, Gao C, Fillmore P, Roberts RL, Pruett N, Bliwise DL. Rapid eye movement sleep mediates age-related decline in prospective memory consolidation. Sleep 2019; 42:zsz055. [PMID: 30860593 PMCID: PMC6559169 DOI: 10.1093/sleep/zsz055] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 02/02/2019] [Indexed: 11/14/2022] Open
Abstract
STUDY OBJECTIVES Prospective memory, or remembering to execute future intentions, accounts for half of everyday forgetting in older adults. Sleep intervals benefit prospective memory consolidation in young adults, but it is unknown whether age-related changes in slow wave activity, sleep spindles, and/or rapid eye movement (REM) sleep mediate hypothesized effects of aging on prospective memory consolidation. METHODS After an adaptation night, 76 adults aged 18-84 completed two experimental nights of in-laboratory polysomnography recording. In the evening, participants encoded and practiced a prospective memory task and were tested the next morning. On a counterbalanced night, they encoded and practiced a control task, and were tested the following morning. RESULTS Increasing age predicted worse prospective memory consolidation (r = -.34), even when controlling for encoding, speed, and control-task performance (all ps < .05). Frontal delta power, slow oscillations, and spindle density were not related to prospective memory consolidation. REM sleep duration, however, explained significant variance in prospective memory consolidation when controlling for age (∆R2 = .10). Bootstrapping mediation showed that less REM sleep significantly mediated the aging effect on prospective memory consolidation [b = -.0016, SE = 0.0009 (95% confidence interval [CI] = -0.0042 to -0.0004)]. REM sleep continued to mediate 24.29% of the total effect of age on prospective memory after controlling for numerous demographic, cognitive, mental health, and sleep variables. CONCLUSION Age-related variance in REM sleep is informative to how prospective memory consolidation changes with increasing age. Future work should consider how both REM sleep and slow wave activity contribute, perhaps in a sequential or dynamic manner, to preserving cognitive functioning with increasing age.
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Affiliation(s)
- Michael K Scullin
- Department of Psychology and Neuroscience, Baylor University, Waco, TX
| | - Chenlu Gao
- Department of Psychology and Neuroscience, Baylor University, Waco, TX
| | - Paul Fillmore
- Department of Communication Sciences and Disorders, Baylor University, Waco, TX
| | - R Lynae Roberts
- Department of Psychology and Neuroscience, Baylor University, Waco, TX
| | - Natalya Pruett
- Department of Psychology and Neuroscience, Baylor University, Waco, TX
| | - Donald L Bliwise
- Department of Neurology, Emory University School of Medicine, Atlanta, GA
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24
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Leong RLF, Koh SYJ, Chee MWL, Lo JC. Slow wave sleep facilitates spontaneous retrieval in prospective memory. Sleep 2019; 42:5288492. [DOI: 10.1093/sleep/zsz003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 12/11/2018] [Indexed: 12/31/2022] Open
Affiliation(s)
- Ruth L F Leong
- Centre for Cognitive Neuroscience, Neuroscience and Behavioral Disorders Programme, Duke-NUS Medical School, Singapore
| | - Shirley Y J Koh
- Centre for Cognitive Neuroscience, Neuroscience and Behavioral Disorders Programme, Duke-NUS Medical School, Singapore
| | - Michael W L Chee
- Centre for Cognitive Neuroscience, Neuroscience and Behavioral Disorders Programme, Duke-NUS Medical School, Singapore
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