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Le Roy B, Jouvencel A, Friedl-Werner A, Renel L, Cherchali Y, Osseiran R, Sanz-Arigita E, Cazalets JR, Guillaud E, Altena E. Is sleep affected after microgravity and hypergravity exposure? A pilot study. J Sleep Res 2024:e14279. [PMID: 38923005 DOI: 10.1111/jsr.14279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 05/24/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024]
Abstract
Sleep is known to be affected in space travel and in residents of the international space station. But little is known about the direct effects of gravity changes on sleep, if other factors, such as sleep conditions, are kept constant. Here, as a first exploration, we investigated sleep before and after exposure to short bouts of microgravity and hypergravity during parabolic flights. Sleep was measured through actigraphy and self-report questionnaires in 20 healthy men and women before and after parabolic flight. Higher sleep fragmentation and more awakenings were found in the night after the flight as compared with the night before, which was discrepant from participants' reports showing better and longer sleep after the parabolic flight. Variable levels of experience with parabolic flights did not affect the results, nor did levels of scopolamine, a medication typically taken against motion sickness. Pre-existing sleep problems were related to sleep fragmentation and wake after sleep onset by a quadratic function such that participants with more sleep problems showed lower levels of sleep fragmentation and nighttime awakenings than those with few sleep problems. These novel findings, though preliminary, have important implications for future research, directed at prevention and treatment of sleep problems and their daytime consequences in situations of altered gravity, and possibly in the context of other daytime vestibular challenges as well.
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Affiliation(s)
- Barbara Le Roy
- Stress Neurophysiology Unit, French Armed Forces Biomedical Research Institute, Brétigny-sur-Orge Cedex, CNES, Paris, France
- APEMAC/EPSAM, EA 4360 Metz Cedex, Metz Cedex, France
| | - Aurore Jouvencel
- INCIA, EPHE, Université PSL, Univ. Bordeaux, CNRS, Bordeaux, France
| | - Anika Friedl-Werner
- Charité-Universitätsmedizin Berlin, a Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Physiology, Center for Space Medicine and Extreme Environments Berlin, Berlin, Germany
- Université de Normandie, INSERM U1075 COMETE, Caen, France
| | - Ludmila Renel
- Université de Bordeaux, CNRS UMR 5287, INCIA, Bordeaux, France
| | | | - Raouf Osseiran
- Université de Bordeaux, CNRS UMR 5287, INCIA, Bordeaux, France
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Qin S, Chee MWL. The Emerging Importance of Sleep Regularity on Cardiovascular Health and Cognitive Impairment in Older Adults: A Review of the Literature. Nat Sci Sleep 2024; 16:585-597. [PMID: 38831959 PMCID: PMC11145062 DOI: 10.2147/nss.s452033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 04/25/2024] [Indexed: 06/05/2024] Open
Abstract
The regularity of sleep/wake patterns across multiple days is emerging as an important determinant of health. However, the association between sleep regularity and health outcomes in the aging population is not well understood. The current systematic review identified 22 publications that examined the relationship between sleep regularity and selected health outcomes: cardiovascular risk, cognitive impairment, and mortality. All studies were published after 2010, reflecting a growing research interest in daily sleep regularity. Low sleep regularity was consistently associated with higher cardiovascular risk and elevated risk of all-cause mortality. Results on cognitive impairment are mixed, with inconsistency likely attributed to small sample sizes and differences in sleep regularity assessment. Overall, regularity in sleep carries important information about health and should be included in future studies that collect daily sleep measures. Gaps in literature and methodological shortcomings are discussed.
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Affiliation(s)
- Shuo Qin
- Centre for Sleep and Cognition, National University of Singapore, Singapore
| | - Michael W L Chee
- Centre for Sleep and Cognition, National University of Singapore, Singapore
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Yavuz E, Gahnstrom CJ, Goodroe S, Coutrot A, Hornberger M, Lazar AS, Spiers HJ. Shorter self-reported sleep duration is associated with worse virtual spatial navigation performance in men. Sci Rep 2024; 14:4093. [PMID: 38374314 PMCID: PMC10876962 DOI: 10.1038/s41598-024-52662-8] [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: 10/11/2023] [Accepted: 01/22/2024] [Indexed: 02/21/2024] Open
Abstract
Sleep has been shown to impact navigation ability. However, it remains unclear how different sleep-related variables may be independently associated with spatial navigation performance, and as to whether gender may play a role in these associations. We used a mobile video game app, Sea Hero Quest (SHQ), to measure wayfinding ability in US-based participants. Wayfinding performance on SHQ has been shown to correlate with real-world wayfinding. Participants were asked to report their sleep duration, quality, daytime sleepiness and nap frequency and duration on a typical night (n = 766, 335 men, 431 women, mean age = 26.5 years, range = 18-59 years). A multiple linear regression was used to identify which self-reported sleep variables were independently associated with wayfinding performance. Shorter self-reported sleep durations were significantly associated with worse wayfinding performance in men only. Other self-reported sleep variables showed non-significant trends of association with wayfinding performance. When removing non-typical sleepers (< 6 or > 9 h of sleep on a typical night), the significant association between sleep duration and spatial navigation performance in men was no longer present. These findings from U.S.-based participants suggest that a longer self-reported sleep duration may be an important contributor to successful navigation ability in men.
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Affiliation(s)
- Emre Yavuz
- Division of Psychology and Language Sciences, Department of Experimental Psychology, Institute of Behavioural Neuroscience, University College London, London, UK.
| | | | - Sarah Goodroe
- Department of Psychology, University of Pennsylvania, Philadelphia, PA, USA
| | | | | | - Alpar S Lazar
- Norwich Medical School, University of East Anglia, Norwich, UK.
| | - Hugo J Spiers
- Division of Psychology and Language Sciences, Department of Experimental Psychology, Institute of Behavioural Neuroscience, University College London, London, UK.
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Baril A, Picard C, Labonté A, Sanchez E, Duclos C, Mohammediyan B, Ashton NJ, Zetterberg H, Blennow K, Breitner JCS, Villeneuve S, Poirier J. Day-to-day sleep variability with Alzheimer's biomarkers in at-risk elderly. ALZHEIMER'S & DEMENTIA (AMSTERDAM, NETHERLANDS) 2024; 16:e12521. [PMID: 38371359 PMCID: PMC10870017 DOI: 10.1002/dad2.12521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 12/04/2023] [Accepted: 12/08/2023] [Indexed: 02/20/2024]
Abstract
INTRODUCTION Measuring day-to-day sleep variability might reveal unstable sleep-wake cycles reflecting neurodegenerative processes. We evaluated the association between Alzheimer's disease (AD) fluid biomarkers with day-to-day sleep variability. METHODS In the PREVENT-AD cohort, 203 dementia-free participants (age: 68.3 ± 5.4; 78 males) with a parental history of sporadic AD were tested with actigraphy and fluid biomarkers. Day-to-day variability (standard deviations over a week) was assessed for sleep midpoint, duration, efficiency, and nighttime activity count. RESULTS Lower cerebrospinal fluid (CSF) ApoE, higher CSF p-tau181/amyloid-β (Aβ)42, and higher plasma p-tau231/Aβ42 were associated with higher variability of sleep midpoint, sleep duration, and/or activity count. The associations between fluid biomarkers with greater sleep duration variability were especially observed in those that carried the APOE4 allele, mild cognitive impairment converters, or those with gray matter atrophy. DISCUSSION Day-to-day sleep variability were associated with biomarkers of AD in at-risk individuals, suggesting that unstable sleep promotes neurodegeneration or, conversely, that AD neuropathology disrupts sleep-wake cycles.
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Affiliation(s)
- Andrée‐Ann Baril
- Douglas Mental Health University InstituteMcGill UniversityMontrealQuébecCanada
| | - Cynthia Picard
- Douglas Mental Health University InstituteMcGill UniversityMontrealQuébecCanada
| | - Anne Labonté
- Douglas Mental Health University InstituteMcGill UniversityMontrealQuébecCanada
| | - Erlan Sanchez
- Sunnybrook Research InstituteUniversity of TorontoTorontoOntarioCanada
| | - Catherine Duclos
- Hôpital du Sacré‐Coeur de MontréalCIUSSS‐NIMMontréalQuébecCanada
- Department of Anesthesiology and Pain MedicineUniversité de MontréalMontréalQuébecCanada
| | - Béry Mohammediyan
- Douglas Mental Health University InstituteMcGill UniversityMontrealQuébecCanada
| | - Nicholas J. Ashton
- Department of Psychiatry and NeurochemistryInstitute of Neuroscience & Physiologythe Sahlgrenska Academy at the University of GothenburgMölndalSweden
- King's College LondonInstitute of PsychiatryPsychology and Neuroscience Maurice Wohl Institute Clinical Neuroscience InstituteLondonUK
- NIHR Biomedical Research Centre for Mental Health and Biomedical Research Unit for Dementia at South London and Maudsley NHS FoundationLondonUK
- Centre for Age‐Related MedicineStavanger University HospitalStavangerNorway
| | - Henrik Zetterberg
- Department of Psychiatry and NeurochemistryInstitute of Neuroscience & Physiologythe Sahlgrenska Academy at the University of GothenburgMölndalSweden
- Clinical Neurochemistry LaboratorySahlgrenska University HospitalMölndalSweden
- Department of Neurodegenerative DiseaseUCL Institute of NeurologyQueen SquareLondonUK
- UK Dementia Research Institute at UCLLondonUK
- Hong Kong Center for Neurodegenerative DiseasesClear Water BayHong KongChina
| | - Kaj Blennow
- Department of Psychiatry and NeurochemistryInstitute of Neuroscience & Physiologythe Sahlgrenska Academy at the University of GothenburgMölndalSweden
- Clinical Neurochemistry LaboratorySahlgrenska University HospitalMölndalSweden
| | - John C. S. Breitner
- Douglas Mental Health University InstituteMcGill UniversityMontrealQuébecCanada
| | - Sylvia Villeneuve
- Douglas Mental Health University InstituteMcGill UniversityMontrealQuébecCanada
| | - Judes Poirier
- Douglas Mental Health University InstituteMcGill UniversityMontrealQuébecCanada
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Kimura N, Sasaki Y, Masuda T, Ataka T, Eguchi A, Kakuma T, Matsubara E. Objective sleep was longitudinally associated with brain amyloid burden in mild cognitive impairment. Ann Clin Transl Neurol 2023; 10:2266-2275. [PMID: 37776077 PMCID: PMC10723246 DOI: 10.1002/acn3.51912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 08/24/2023] [Accepted: 08/26/2023] [Indexed: 10/01/2023] Open
Abstract
OBJECTIVE Understanding the longitudinal association of objective sleep and physical activity with brain amyloid burden and cortical glucose metabolism has critical clinical and public health implications for dementia prevention in later life. METHODS We enrolled 118 individuals aged ≥65 years with mild cognitive impairment, who were followed up on from August 2015 to September 2019. All participants continuously wore an accelerometer sensor for 7 consecutive days every 3 months and received annual 11 C-Pittsburgh compound-B and 18 F-fluorodeoxyglucose positron emission tomography (PET). Sleep and physical activity parameters were assessed using accelerometer sensor data and PET imaging was quantified using a standardized uptake-value ratio. Fifty-seven participants (48.3%) completed a lifestyle factor assessment and PET imaging over the 3-year period. A linear mixed-effects model was applied to examine the longitudinal association of sleep and physical activity parameters with PET imaging over the 3-year period, controlling for potential confounders. RESULTS Sleep efficiency was inversely associated with amyloid uptake in the frontal lobe. Although sleep duration was positively associated with global amyloid uptake, particularly in the frontal lobe, their impact was extremely small. However, physical activity parameters were not significantly associated with the 11 C-Pittsburgh compound-B-uptake. Furthermore, sleep and physical activity parameters were not significantly associated with cortical glucose metabolism. INTERPRETATION Lower sleep efficiency could be an early symptom of greater brain amyloid burden at the mild cognitive impairment stage. Therefore, the assessment of sleep may be useful for identifying individuals at higher risk for brain amyloid burden. Future longer term observational studies are required to confirm these findings.
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Affiliation(s)
- Noriyuki Kimura
- Department of Neurology, Faculty of MedicineOita UniversityOitaJapan
| | - Yuuki Sasaki
- Department of Neurology, Faculty of MedicineOita UniversityOitaJapan
| | - Teruaki Masuda
- Department of Neurology, Faculty of MedicineOita UniversityOitaJapan
| | - Takuya Ataka
- Department of Neurology, Faculty of MedicineOita UniversityOitaJapan
| | - Atsuko Eguchi
- Department of Neurology, Faculty of MedicineOita UniversityOitaJapan
| | | | - Etsuro Matsubara
- Department of Neurology, Faculty of MedicineOita UniversityOitaJapan
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Stankeviciute L, Falcon C, Operto G, Garcia M, Shekari M, Iranzo Á, Niñerola-Baizán A, Perissinotti A, Minguillón C, Fauria K, Molinuevo JL, Zetterberg H, Blennow K, Suárez-Calvet M, Cacciaglia R, Gispert JD, Grau-Rivera O. Differential effects of sleep on brain structure and metabolism at the preclinical stages of AD. Alzheimers Dement 2023; 19:5371-5386. [PMID: 37194734 DOI: 10.1002/alz.13102] [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: 09/30/2022] [Revised: 02/22/2023] [Accepted: 02/23/2023] [Indexed: 05/18/2023]
Abstract
INTRODUCTION Poor sleep quality is associated with cognitive outcomes in Alzheimer's disease (AD). We analyzed the associations between self-reported sleep quality and brain structure and function in cognitively unimpaired (CU) individuals. METHODS CU adults (N = 339) underwent structural magnetic resonance imaging, lumbar puncture, and the Pittsburgh Sleep Quality Index (PSQI) questionnaire. A subset (N = 295) performed [18F] fluorodeoxyglucose positron emission tomography scans. Voxel-wise associations with gray matter volumes (GMv) and cerebral glucose metabolism (CMRGlu) were performed including interactions with cerebrospinal fluid (CSF) AD biomarkers status. RESULTS Poorer sleep quality was associated with lower GMv and CMRGlu in the orbitofrontal and cingulate cortices independently of AD pathology. Self-reported sleep quality interacted with altered core AD CSF biomarkers in brain areas known to be affected in preclinical AD stages. DISCUSSION Poor sleep quality may impact brain structure and function independently from AD pathology. Alternatively, AD-related neurodegeneration in areas involved in sleep-wake regulation may induce or worsen sleep disturbances. Highlights Poor sleep impacts brain structure and function independent of Alzheimer's disease (AD) pathology. Poor sleep exacerbates brain changes observed in preclinical AD. Sleep is an appealing therapeutic strategy for preventing AD.
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Affiliation(s)
- Laura Stankeviciute
- Universitat Pompeu Fabra, Barcelona, Spain
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Barcelona, Spain
| | - Carles Falcon
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Barcelona, Spain
- IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, Madrid, Spain
| | - Grégory Operto
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Barcelona, Spain
- IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Madrid, Spain
| | - Marina Garcia
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Barcelona, Spain
- IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
| | - Mahnaz Shekari
- Universitat Pompeu Fabra, Barcelona, Spain
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Barcelona, Spain
- IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
| | - Álex Iranzo
- Neurology Service, Hospital Clínic de Barcelona and Institut D'Investigacions Biomèdiques, University of Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Aida Niñerola-Baizán
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, Madrid, Spain
- Nuclear Medicine Department, Hospital Clínic Barcelona, Barcelona, Spain
| | - Andrés Perissinotti
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, Madrid, Spain
- Nuclear Medicine Department, Hospital Clínic Barcelona, Barcelona, Spain
| | - Carolina Minguillón
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Barcelona, Spain
- IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Madrid, Spain
| | - Karine Fauria
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Madrid, Spain
| | - Jose Luis Molinuevo
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Barcelona, Spain
| | - Henrik Zetterberg
- UK Dementia Research Institute at UCL, London, UK
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Gothenburg, Sweden
- Department of Neurodegenerative Disease, UCL Institute of Neurology, London, UK
- Hong Kong Center for Neurodegenerative Diseases, Clear Water Bay, Hong Kong, China
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, the Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Kaj Blennow
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Gothenburg, Sweden
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, the Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Marc Suárez-Calvet
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Barcelona, Spain
- IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Madrid, Spain
- Servei de Neurologia, Hospital del Mar, Barcelona, Spain
| | - Raffaele Cacciaglia
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Barcelona, Spain
- IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Madrid, Spain
| | - Juan Domingo Gispert
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Barcelona, Spain
- IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, Madrid, Spain
| | - Oriol Grau-Rivera
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Barcelona, Spain
- IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Madrid, Spain
- Servei de Neurologia, Hospital del Mar, Barcelona, Spain
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Skourti E, Simos P, Zampetakis A, Koutentaki E, Zaganas I, Alexopoulou C, Vgontzas A, Basta M. Long-term associations between objective sleep quality and quantity and verbal memory performance in normal cognition and mild cognitive impairment. Front Neurosci 2023; 17:1265016. [PMID: 37928739 PMCID: PMC10620682 DOI: 10.3389/fnins.2023.1265016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 09/29/2023] [Indexed: 11/07/2023] Open
Abstract
Introduction Although the link between sleep and memory function is well established, associations between sleep macrostructure and memory function in normal cognition and Mild Cognitive Impairment remain unclear. We aimed to investigate the longitudinal associations of baseline objectively assessed sleep quality and duration, as well as time in bed, with verbal memory capacity over a 7-9 year period. Participants are a well-characterized subsample of 148 persons (mean age at baseline: 72.8 ± 6.7 years) from the Cretan Aging Cohort. Based on comprehensive neuropsychiatric and neuropsychological evaluation at baseline, participants were diagnosed with Mild Cognitive Impairment (MCI; n = 79) or found to be cognitively unimpaired (CNI; n = 69). Sleep quality/quantity was estimated from a 3-day consecutive actigraphy recording, whereas verbal memory capacity was examined using the Rey Auditory Verbal Learning Test (RAVLT) and the Greek Passage Memory Test at baseline and follow-up. Panel models were applied to the data using AMOS including several sociodemographic and clinical covariates. Results Sleep efficiency at baseline directly predicted subsequent memory performance in the total group (immediate passage recall: β = 0.266, p = 0.001; immediate word list recall: β = 0.172, p = 0.01; delayed passage retrieval: β = 0.214, p = 0.002) with the effects in Passage Memory reaching significance in both clinical groups. Wake after sleep onset time directly predicted follow-up immediate passage recall in the total sample (β = -0.211, p = 0.001) and in the MCI group (β = -0.235, p = 0.02). In the total sample, longer 24-h sleep duration was associated with reduced memory performance indirectly through increased sleep duration at follow-up (immediate passage recall: β = -0.045, p = 0.01; passage retention index: β = -0.051, p = 0.01; RAVLT-delayed recall: β = -0.048, p = 0.009; RAVLT-retention index:β = -0.066, p = 0.004). Similar indirect effects were found for baseline 24-h time in bed. Indirect effects of sleep duration/time in bed were found predominantly in the MCI group. Discussion Findings corroborate and expand previous work suggesting that poor sleep quality and long sleep duration predict worse memory function in elderly. Timely interventions to improve sleep could help prevent or delay age-related memory decline among non-demented elderly.
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Affiliation(s)
- Eleni Skourti
- Division of Psychiatry and Behavioral Sciences, School of Medicine, University of Crete, Heraklion, Greece
| | - Panagiotis Simos
- Division of Psychiatry and Behavioral Sciences, School of Medicine, University of Crete, Heraklion, Greece
- Computational Biomedicine Lab, Institute of Computer Science, Foundation for Research and Technology-Hellas, Heraklion, Greece
- Department of Psychiatry, University Hospital of Heraklion, Crete, Greece
| | - Alexandros Zampetakis
- Division of Psychiatry and Behavioral Sciences, School of Medicine, University of Crete, Heraklion, Greece
| | - Eirini Koutentaki
- Department of Psychiatry, University Hospital of Heraklion, Crete, Greece
| | - Ioannis Zaganas
- Division of Neurology and Sensory Organs, School of Medicine, University of Crete, Heraklion, Greece
| | | | - Alexandros Vgontzas
- Division of Psychiatry and Behavioral Sciences, School of Medicine, University of Crete, Heraklion, Greece
- Department of Psychiatry, University Hospital of Heraklion, Crete, Greece
- Sleep Research and Treatment Center, Department of Psychiatry and Behavioral Health, Penn State Health Milton S. Hershey Medical Center, College of Medicine, Pennsylvania State University, Hershey, PA, United States
| | - Maria Basta
- Division of Psychiatry and Behavioral Sciences, School of Medicine, University of Crete, Heraklion, Greece
- Department of Psychiatry, University Hospital of Heraklion, Crete, Greece
- Sleep Research and Treatment Center, Department of Psychiatry and Behavioral Health, Penn State Health Milton S. Hershey Medical Center, College of Medicine, Pennsylvania State University, Hershey, PA, United States
- Day Care Center for Alzheimer’s Disease “Nefeli”, University Hospital of Heraklion, Crete, Greece
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Jouvencel A, Baillet M, Meyer M, Dilharreguy B, Lamare F, Pérès K, Helmer C, Dartigues J, Amieva H, Mayo W, Catheline G. Night-to-night variability in sleep and amyloid beta burden in normal aging. ALZHEIMER'S & DEMENTIA (AMSTERDAM, NETHERLANDS) 2023; 15:e12460. [PMID: 37745892 PMCID: PMC10512442 DOI: 10.1002/dad2.12460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 05/25/2023] [Accepted: 06/27/2023] [Indexed: 09/26/2023]
Abstract
INTRODUCTION Alzheimer's disease is associated with sleep disturbances and accumulation of cerebral amyloid beta. The objective was to examine whether actigraphy-detected sleep parameters might be biomarkers for early amyloid burden. METHODS Participants underwent a week of actigraphy and an amyloid positron emission tomography (PET) scan. Sleep duration and continuity disruption (sleep fragmentation and nocturnal awakenings) were extracted and compared between amyloid-positive and amyloid-negative participants. Then multiple linear regressions were used between mean or night-to-night intra-individual variability (standard deviation) of sleep parameters and brain amyloid burden in a voxel-wise analysis. RESULTS Eighty-six subjects were included (80.3 ± 5.4 years; 48.8% of women). Amyloid-positive participants had a higher variability of sleep fragmentation compared to amyloid-negative participants. This parameter was associated with a higher amyloid burden in the frontal and parietal regions, and in the precuneus, in the whole sample. DISCUSSION This study highlights the relevance of using variability in sleep continuity as a potential biomarker of early amyloid pathogenesis.
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Affiliation(s)
| | - Marion Baillet
- GIGA‐CRC‐In Vivo Imaging Research UnitUniversity of LiègeLiègeBelgium
| | - Marie Meyer
- INCIA, EPHE, Université PSLUniv BordeauxCNRSBordeauxFrance
- Nuclear Medicine DepartmentUniversity Hospital of BordeauxBordeauxFrance
| | | | - Frederic Lamare
- INCIA, EPHE, Université PSLUniv BordeauxCNRSBordeauxFrance
- Nuclear Medicine DepartmentUniversity Hospital of BordeauxBordeauxFrance
| | - Karine Pérès
- INSERMBordeaux Population Health Research CenterUniversity of BordeauxUMR U1219BordeauxFrance
| | - Catherine Helmer
- INSERMBordeaux Population Health Research CenterUniversity of BordeauxUMR U1219BordeauxFrance
| | - Jean‐François Dartigues
- INSERMBordeaux Population Health Research CenterUniversity of BordeauxUMR U1219BordeauxFrance
| | - Hélène Amieva
- INSERMBordeaux Population Health Research CenterUniversity of BordeauxUMR U1219BordeauxFrance
| | - Willy Mayo
- INCIA, EPHE, Université PSLUniv BordeauxCNRSBordeauxFrance
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9
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Fenton L, Isenberg AL, Aslanyan V, Albrecht D, Contreras JA, Stradford J, Monreal T, Pa J. Variability in objective sleep is associated with Alzheimer's pathology and cognition. Brain Commun 2023; 5:fcad031. [PMID: 36895954 PMCID: PMC9989141 DOI: 10.1093/braincomms/fcad031] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 09/28/2022] [Accepted: 02/09/2023] [Indexed: 02/17/2023] Open
Abstract
Both sleep duration and sleep efficiency have been associated with risk of Alzheimer's disease, suggesting that interventions to promote optimal sleep may be a way to reduce Alzheimer's disease risk. However, studies often focus on average sleep measures, usually from self-report questionnaires, ignoring the role of intra-individual variability in sleep across nights quantified from objective sleep measures. The current cross-sectional study sought to investigate the role of intra-individual variability in accelerometer-based objective sleep duration and sleep efficiency in relation to in vivo Alzheimer's disease pathology (β-amyloid and tau) using positron emission tomography imaging and cognition (working memory, inhibitory control, verbal memory, visual memory and global cognition). To examine these relationships, we evaluated 52 older adults (age = 66.4 ± 6.89, 67% female, 27% apolipoprotein E4 carriers) with objective early mild cognitive impairment. Modifying effects of apolipoprotein E4 status were also explored. Less intra-individual variability in sleep duration was associated with lower β-amyloid burden, higher global cognition and better inhibitory control, with a trend for lower tau burden. Less intra-individual variability in sleep efficiency was associated with lower β-amyloid burden, higher global cognition and better inhibitory control, but not with tau burden. Longer sleep duration was associated with better visual memory and inhibitory control. Apolipoprotein E4 status significantly modified the association between intra-individual variability in sleep efficiency and β-amyloid burden, such that less sleep efficiency variability was associated with lower β-amyloid burden in apolipoprotein E4 carriers only. There was a significant interaction between sleep duration and apolipoprotein E4 status, suggesting that longer sleep duration is more strongly associated with lower β-amyloid burden in apolipoprotein E4 carriers relative to non-carriers. These results provide evidence that lower intra-individual variability in both sleep duration and sleep efficiency and longer mean sleep duration are associated with lower levels of β-amyloid pathology and better cognition. The relationships between sleep duration and intra-individual variability in sleep efficiency with β-amyloid burden differ by apolipoprotein E4 status, indicating that longer sleep duration and more consistent sleep efficiency may be protective against β-amyloid burden in apolipoprotein E4 carriers. Longitudinal and causal studies are needed to better understand these relationships. Future work should investigate factors contributing to intra-individual variability in sleep duration and sleep efficiency in order to inform intervention studies.
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Affiliation(s)
- Laura Fenton
- Alzheimer Disease Research Center, Department of Neurology, Keck School of Medicine of USC, University of Southern California, Los Angeles, CA 90033, USA
- Department of Psychology, University of Southern California, Los Angeles, CA 90089, USA
| | - A Lisette Isenberg
- Alzheimer’s Disease Cooperative Study (ADCS), Department of Neurosciences, University of California, San Diego, CA 92037, USA
| | - Vahan Aslanyan
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA 90032, USA
| | - Daniel Albrecht
- Alzheimer’s Disease Cooperative Study (ADCS), Department of Neurosciences, University of California, San Diego, CA 92037, USA
| | - Joey A Contreras
- Alzheimer’s Disease Cooperative Study (ADCS), Department of Neurosciences, University of California, San Diego, CA 92037, USA
| | - Joy Stradford
- Alzheimer’s Disease Cooperative Study (ADCS), Department of Neurosciences, University of California, San Diego, CA 92037, USA
| | - Teresa Monreal
- Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Judy Pa
- Alzheimer Disease Research Center, Department of Neurology, Keck School of Medicine of USC, University of Southern California, Los Angeles, CA 90033, USA
- Department of Psychology, University of Southern California, Los Angeles, CA 90089, USA
- Alzheimer’s Disease Cooperative Study (ADCS), Department of Neurosciences, University of California, San Diego, CA 92037, USA
- Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
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10
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Relationships between diabetes-related vascular risk factors and neurodegeneration biomarkers in healthy aging and Alzheimer's disease. Neurobiol Aging 2022; 118:25-33. [DOI: 10.1016/j.neurobiolaging.2022.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 04/15/2022] [Accepted: 06/17/2022] [Indexed: 11/20/2022]
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11
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Zhao X, Du W, Jiang J, Han Y. Brain Photobiomodulation Improves Sleep Quality in Subjective Cognitive Decline: A Randomized, Sham-Controlled Study. J Alzheimers Dis 2022; 87:1581-1589. [PMID: 35491787 DOI: 10.3233/jad-215715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Background: Sleep appears to be a sensitive biomarker that facilitates early detection and effective intervention for Alzheimer’s disease, while subjective cognitive decline (SCD) is a risk factor for Alzheimer’s disease. Prefrontal cortex atrophy is associated with both sleep disruption and cognitive decline. Transcranial brain photobiomodulation (PBM) therapy can enhance frontal cortex oxygen consumption, increasing frontal cortex mediated memory function. Objective: This study aimed to test whether PBM therapy targeting the frontal cortex could improve sleep and cognitive function in SCD. Methods: Fifty-eight SCDs were divided into the PBM group (N = 32) in which real light therapy was administered and a sham light therapy group (N = 26). All the participants received either real light or sham light therapy for 6 days consecutively, while the sleep data were recorded. The n-back task was employed to measure each participant’s working memory. Results: We found no differences in sleep efficiency change (F = 211, p = 0.279), REM stage percent change (F = 420, p = 0.91), and wake-up time (F = 212, p = 0.277) between the two groups. The sleep efficiency and REM were improved within the true light group on the fifth day. The true light group perform better than the control group in the n-back test, the accuracy was higher in the 2-back test (88.6% versus 79.6%, p = 0.001), and the reaction time in 1-back was shorter (544.80±202.00 versus 592.87±222.05, p = 0.003). Conclusion: After five days of PBM therapy targeting the prefrontal cortex, sleep efficiency and N-back cognitive performance were improved on the fifth day.
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Affiliation(s)
- Xing Zhao
- Department of NeurologyXuanwu Hospital of Capital Medical University, Beijing, China
| | - Wenying Du
- Department of NeurologyXuanwu Hospital of Capital Medical University, Beijing, China
| | - Jiehui Jiang
- Institute of Biomedical Engineering School of Communication and Information Engineering, Shanghai University, Shanghai, China
| | - Ying Han
- Department of NeurologyXuanwu Hospital of Capital Medical University, Beijing, China
- Biomedical Engineering Institute, Hainan University, Haikou, China
- Center of Alzheimer’s Disease, Beijing Institute for Brain Diseases, Beijing, China
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12
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Wirth M, Gaubert M, Köbe T, Garnier-Crussard A, Lange C, Gonneaud J, de Flores R, Landeau B, de la Sayette V, Chételat G. Vascular Health Is Associated With Functional Connectivity Decline in Higher-Order Networks of Older Adults. Front Integr Neurosci 2022; 16:847824. [PMID: 35558154 PMCID: PMC9088922 DOI: 10.3389/fnint.2022.847824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 03/14/2022] [Indexed: 12/03/2022] Open
Abstract
Background Poor vascular health may impede brain functioning in older adults, thus possibly increasing the risk of cognitive decline and Alzheimer’s disease (AD). The emerging link between vascular risk factors (VRF) and longitudinal decline in resting-state functional connectivity (RSFC) within functional brain networks needs replication and further research in independent cohorts. Method We examined 95 non-demented older adults using the IMAP+ cohort (Caen, France). VRF were assessed at baseline through systolic and diastolic blood pressure, body-mass-index, and glycated hemoglobin (HbA1c) levels. Brain pathological burden was measured using white matter hyperintensity (WMH) volumes, derived from FLAIR images, and cortical β-Amyloid (Aβ) deposition, derived from florbetapir-PET imaging. RSFC was estimated from functional MRI scans within canonical brain networks at baseline and up to 3 years of follow-up. Linear mixed-effects models evaluated the independent predictive value of VRF on longitudinal changes in network-specific and global RSFC as well as a potential association between these RSFC changes and cognitive decline. Results We replicate that RSFC increased over time in global RSFC and in the default-mode, salience/ventral-attention and fronto-parietal networks. In contrast, higher diastolic blood pressure levels were independently associated with a decrease of RSFC over time in the default-mode, salience/ventral-attention, and fronto-parietal networks. Moreover, higher HbA1c levels were independently associated with a reduction of the observed RSFC increase over time in the salience/ventral-attention network. Both of these associations were independent of brain pathology related to Aβ load and WMH volumes. The VRF-related changes in RSFC over time were not significantly associated with longitudinal changes in cognitive performance. Conclusion Our longitudinal findings corroborate that VRF promote RSFC alterations over time within higher-order brain networks, irrespective of pathological brain burden. Altered RSFC in large-scale cognitive networks may eventually increase the vulnerability to aging and AD.
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Affiliation(s)
- Miranka Wirth
- German Center for Neurodegenerative Diseases (DZNE), Dresden, Germany
- *Correspondence: Miranka Wirth,
| | - Malo Gaubert
- German Center for Neurodegenerative Diseases (DZNE), Dresden, Germany
| | - Theresa Köbe
- German Center for Neurodegenerative Diseases (DZNE), Dresden, Germany
| | - Antoine Garnier-Crussard
- Clinical and Research Memory Center of Lyon, Lyon Institute for Aging, Hospices Civils de Lyon, Lyon, France
- INSERM 1048, CNRS 5292, Neuroscience Research Centre, Lyon, France
- UNICAEN, INSERM, U1237, PhIND “Physiopathology and Imaging of Neurological Disorders,” Institut Blood and Brain @ Caen-Normandie, Cyceron, Normandy University, Caen, France
| | - Catharina Lange
- German Center for Neurodegenerative Diseases (DZNE), Dresden, Germany
- Department of Nuclear Medicine, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Julie Gonneaud
- UNICAEN, INSERM, U1237, PhIND “Physiopathology and Imaging of Neurological Disorders,” Institut Blood and Brain @ Caen-Normandie, Cyceron, Normandy University, Caen, France
| | - Robin de Flores
- UNICAEN, INSERM, U1237, PhIND “Physiopathology and Imaging of Neurological Disorders,” Institut Blood and Brain @ Caen-Normandie, Cyceron, Normandy University, Caen, France
| | - Brigitte Landeau
- UNICAEN, INSERM, U1237, PhIND “Physiopathology and Imaging of Neurological Disorders,” Institut Blood and Brain @ Caen-Normandie, Cyceron, Normandy University, Caen, France
| | - Vincent de la Sayette
- UNICAEN, INSERM, U1237, PhIND “Physiopathology and Imaging of Neurological Disorders,” Institut Blood and Brain @ Caen-Normandie, Cyceron, Normandy University, Caen, France
- Department of Neurology, CHU de Caen, Caen, France
| | - Gaël Chételat
- UNICAEN, INSERM, U1237, PhIND “Physiopathology and Imaging of Neurological Disorders,” Institut Blood and Brain @ Caen-Normandie, Cyceron, Normandy University, Caen, France
- Gaël Chételat,
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13
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Ramduny J, Bastiani M, Huedepohl R, Sotiropoulos SN, Chechlacz M. The Association Between Inadequate Sleep and Accelerated Brain Ageing. Neurobiol Aging 2022; 114:1-14. [PMID: 35344818 PMCID: PMC9084918 DOI: 10.1016/j.neurobiolaging.2022.02.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 12/23/2021] [Accepted: 02/14/2022] [Indexed: 01/18/2023]
Affiliation(s)
- Jivesh Ramduny
- Sir Peter Mansfield Imaging Centre, School of Medicine, University of Nottingham, Nottingham, UK; School of Psychology, Trinity College Dublin, Dublin, Ireland; Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin, Ireland
| | - Matteo Bastiani
- Sir Peter Mansfield Imaging Centre, School of Medicine, University of Nottingham, Nottingham, UK; National Institute for Health Research (NIHR), Nottingham Biomedical Research Centre, Queen's Medical Centre, Nottingham, UK
| | - Robin Huedepohl
- School of Psychology, University of Birmingham, Birmingham, UK
| | - Stamatios N Sotiropoulos
- Sir Peter Mansfield Imaging Centre, School of Medicine, University of Nottingham, Nottingham, UK; National Institute for Health Research (NIHR), Nottingham Biomedical Research Centre, Queen's Medical Centre, Nottingham, UK.
| | - Magdalena Chechlacz
- School of Psychology, University of Birmingham, Birmingham, UK; Centre for Human Brain Health, University of Birmingham, Birmingham, UK.
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14
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Nick H, Fenik P, Zhu Y, Veasey S. Hypocretin/orexin influences chronic sleep disruption injury in the hippocampus. Front Aging Neurosci 2022; 14:1025402. [PMID: 36275002 PMCID: PMC9582517 DOI: 10.3389/fnagi.2022.1025402] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 09/20/2022] [Indexed: 01/13/2023] Open
Abstract
Chronic sleep disruption is a risk factor for Alzheimer's disease (AD), yet mechanisms by which sleep disturbances might promote or exacerbate AD are not understood. Short-term sleep loss acutely increases hippocampal amyloid β (Aβ) in wild type (WT) mice and long-term sleep loss increases amyloid plaque in AD transgenic mouse models. Both effects can be influenced by the wake-promoting neuropeptide, hypocretin (HCRT), but whether HCRT influences amyloid accumulation independent of sleep and wake timing modulation remains unclear. Here, we induced chronic fragmentation of sleep (CFS) in WT and HCRT-deficient mice to elicit similar arousal indices, sleep bout lengths and sleep bout numbers in both genotypes. We then examined the roles of HCRT in CFS-induced hippocampal Aβ accumulation and injury. CFS in WT mice resulted in increased Aβ42 in the hippocampus along with loss of cholinergic projections and loss of locus coeruleus neurons. Mice with HCRT deficiency conferred resistance to CFS Aβ42 accumulation and loss of cholinergic projections in the hippocampus yet evidenced similar CFS-induced loss of locus coeruleus neurons. Collectively, the findings demonstrate specific roles for orexin in sleep disruption hippocampal injury. Significance statement Chronic fragmentation of sleep (CFS) occurs in common conditions, including sleep apnea syndromes and chronic pain disorders, yet CFS can induce neural injury. Our results demonstrate that under conditions of sleep fragmentation, hypocretin/orexin is essential for the accumulation of amyloid-β and loss of cholinergic projections in the hippocampus observed in response to CFS yet does not influence locus coeruleus neuron response to CFS.
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Affiliation(s)
- Henry Nick
- Department of Medicine and the Chronobiology and Sleep Institute, Perelman School of Medicine, University of Pennsylvania Philadelphia, Philadelphia, PA, United States
| | - Polina Fenik
- Department of Medicine and the Chronobiology and Sleep Institute, Perelman School of Medicine, University of Pennsylvania Philadelphia, Philadelphia, PA, United States
| | - Yan Zhu
- Department of Medicine and the Chronobiology and Sleep Institute, Perelman School of Medicine, University of Pennsylvania Philadelphia, Philadelphia, PA, United States
| | - Sigrid Veasey
- Department of Medicine and the Chronobiology and Sleep Institute, Perelman School of Medicine, University of Pennsylvania Philadelphia, Philadelphia, PA, United States
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15
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Grässler B, Dordevic M, Herold F, Darius S, Langhans C, Halfpaap N, Labott BK, Müller P, Ammar A, Thielmann B, Böckelmann I, Müller NG, Hökelmann A. Relationship between Resting State Heart Rate Variability and Sleep Quality in Older Adults with Mild Cognitive Impairment. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph182413321. [PMID: 34948937 PMCID: PMC8703743 DOI: 10.3390/ijerph182413321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 12/12/2021] [Accepted: 12/14/2021] [Indexed: 11/16/2022]
Abstract
Sleep problems can be caused by psychological stress but are also related to cardiovascular and neurodegenerative diseases. Improving lifestyle behaviors, such as good sleep hygiene, can help to counteract the negative effects of neurodegenerative diseases and to improve quality of life. The purpose of this cross-sectional study was to investigate the relationship between subjectively reported measures of sleep quality (via Pittsburgh Sleep Quality Index (PSQI)) and objective measures of cardiac autonomic control (via resting state heart rate variability (HRV)) among individuals with mild cognitive impairment (MCI). The PSQI and resting state HRV data of 42 MCI participants (69.0 ± 5.5; 56–80 years) were analyzed. Nineteen of the participants reported poor sleep quality (PSQI score > 5). Good sleepers showed higher resting heart rate than bad sleepers (p = 0.037; ES = 0.670). Correlation analysis showed a significant correlation between the parameter HF nu and sleep efficiency, contrasting the expected positive association between reduced HRV and poor sleep quality in healthy and individuals with specific diseases. Otherwise, there were no significances, indicating that measures of subjective sleep quality and resting HRV were not related in the present sample of MCI participants. Further research is needed to better understand the complex relationship between HRV and lifestyle factors (e.g., sleep) in MCI.
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Affiliation(s)
- Bernhard Grässler
- Department of Sport Science, Faculty of Humanities, Otto von Guericke University, 39106 Magdeburg, Germany; (C.L.); (N.H.); (B.K.L.); (A.A.); (A.H.)
- Correspondence: ; Tel.: +49-391-6756682
| | - Milos Dordevic
- Research Group Neuroprotection, German Center for Neurodegenerative Diseases (DZNE), 39120 Magdeburg, Germany; (M.D.); (F.H.); (P.M.); (N.G.M.)
- Department of Neurology, Medical Faculty, Otto von Guericke University, 39120 Magdeburg, Germany
- Research Group Degenerative and Chronic Diseases, Movement, Faculty of Health Sciences, University of Potsdam, 14469 Potsdam, Germany
| | - Fabian Herold
- Research Group Neuroprotection, German Center for Neurodegenerative Diseases (DZNE), 39120 Magdeburg, Germany; (M.D.); (F.H.); (P.M.); (N.G.M.)
- Department of Neurology, Medical Faculty, Otto von Guericke University, 39120 Magdeburg, Germany
- Research Group Degenerative and Chronic Diseases, Movement, Faculty of Health Sciences, University of Potsdam, 14469 Potsdam, Germany
| | - Sabine Darius
- Department of Occupational Medicine, Medical Faculty, Otto von Guericke University, 39120 Magdeburg, Germany; (S.D.); (B.T.); (I.B.)
| | - Corinna Langhans
- Department of Sport Science, Faculty of Humanities, Otto von Guericke University, 39106 Magdeburg, Germany; (C.L.); (N.H.); (B.K.L.); (A.A.); (A.H.)
| | - Nicole Halfpaap
- Department of Sport Science, Faculty of Humanities, Otto von Guericke University, 39106 Magdeburg, Germany; (C.L.); (N.H.); (B.K.L.); (A.A.); (A.H.)
| | - Berit K. Labott
- Department of Sport Science, Faculty of Humanities, Otto von Guericke University, 39106 Magdeburg, Germany; (C.L.); (N.H.); (B.K.L.); (A.A.); (A.H.)
| | - Patrick Müller
- Research Group Neuroprotection, German Center for Neurodegenerative Diseases (DZNE), 39120 Magdeburg, Germany; (M.D.); (F.H.); (P.M.); (N.G.M.)
- Department of Neurology, Medical Faculty, Otto von Guericke University, 39120 Magdeburg, Germany
| | - Achraf Ammar
- Department of Sport Science, Faculty of Humanities, Otto von Guericke University, 39106 Magdeburg, Germany; (C.L.); (N.H.); (B.K.L.); (A.A.); (A.H.)
| | - Beatrice Thielmann
- Department of Occupational Medicine, Medical Faculty, Otto von Guericke University, 39120 Magdeburg, Germany; (S.D.); (B.T.); (I.B.)
| | - Irina Böckelmann
- Department of Occupational Medicine, Medical Faculty, Otto von Guericke University, 39120 Magdeburg, Germany; (S.D.); (B.T.); (I.B.)
| | - Notger G. Müller
- Research Group Neuroprotection, German Center for Neurodegenerative Diseases (DZNE), 39120 Magdeburg, Germany; (M.D.); (F.H.); (P.M.); (N.G.M.)
- Department of Neurology, Medical Faculty, Otto von Guericke University, 39120 Magdeburg, Germany
- Research Group Degenerative and Chronic Diseases, Movement, Faculty of Health Sciences, University of Potsdam, 14469 Potsdam, Germany
- Center for Behavioral Brain Sciences (CBBS), Brenneckestraße 6, 39118 Magdeburg, Germany
| | - Anita Hökelmann
- Department of Sport Science, Faculty of Humanities, Otto von Guericke University, 39106 Magdeburg, Germany; (C.L.); (N.H.); (B.K.L.); (A.A.); (A.H.)
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16
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Rahimi-Eichi H, Coombs Iii G, Vidal Bustamante CM, Onnela JP, Baker JT, Buckner RL. Open-source Longitudinal Sleep Analysis From Accelerometer Data (DPSleep): Algorithm Development and Validation. JMIR Mhealth Uhealth 2021; 9:e29849. [PMID: 34612831 PMCID: PMC8529474 DOI: 10.2196/29849] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 06/17/2021] [Accepted: 08/02/2021] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Wearable devices are now widely available to collect continuous objective behavioral data from individuals and to measure sleep. OBJECTIVE This study aims to introduce a pipeline to infer sleep onset, duration, and quality from raw accelerometer data and then quantify the relationships between derived sleep metrics and other variables of interest. METHODS The pipeline released here for the deep phenotyping of sleep, as the DPSleep software package, uses a stepwise algorithm to detect missing data; within-individual, minute-based, spectral power percentiles of activity; and iterative, forward-and-backward-sliding windows to estimate the major Sleep Episode onset and offset. Software modules allow for manual quality control adjustment of the derived sleep features and correction for time zone changes. In this paper, we have illustrated the pipeline with data from participants studied for more than 200 days each. RESULTS Actigraphy-based measures of sleep duration were associated with self-reported sleep quality ratings. Simultaneous measures of smartphone use and GPS location data support the validity of the sleep timing inferences and reveal how phone measures of sleep timing can differ from actigraphy data. CONCLUSIONS We discuss the use of DPSleep in relation to other available sleep estimation approaches and provide example use cases that include multi-dimensional, deep longitudinal phenotyping, extended measurement of dynamics associated with mental illness, and the possibility of combining wearable actigraphy and personal electronic device data (eg, smartphones and tablets) to measure individual differences across a wide range of behavioral variations in health and disease. A new open-source pipeline for deep phenotyping of sleep, DPSleep, analyzes raw accelerometer data from wearable devices and estimates sleep onset and offset while allowing for manual quality control adjustments.
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Affiliation(s)
- Habiballah Rahimi-Eichi
- Department of Psychology, Harvard University, Cambridge, MA, United States.,Institute for Technology in Psychiatry, McLean Hospital, Belmont, MA, United States.,Department of Psychiatry, Harvard Medical School, Boston, MA, United States
| | - Garth Coombs Iii
- Department of Psychology, Harvard University, Cambridge, MA, United States
| | | | - Jukka-Pekka Onnela
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA, United States
| | - Justin T Baker
- Institute for Technology in Psychiatry, McLean Hospital, Belmont, MA, United States.,Department of Psychiatry, Harvard Medical School, Boston, MA, United States
| | - Randy L Buckner
- Department of Psychology, Harvard University, Cambridge, MA, United States.,Department of Psychiatry, Harvard Medical School, Boston, MA, United States.,Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, United States
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17
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Duivon M, Giffard B, Desgranges B, Perrier J. Are Sleep Complaints Related to Cognitive Functioning in Non-Central Nervous System Cancer? A Systematic Review. Neuropsychol Rev 2021; 32:483-505. [PMID: 34355305 DOI: 10.1007/s11065-021-09521-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 07/19/2021] [Indexed: 12/24/2022]
Abstract
Patients with non-central nervous system (CNS) cancer frequently report cognitive complaints, that are recurrent and affect their quality of life. In order to improve supportive care of these cognitive difficulties, it is important to identify associated factors. Sleep disturbance is a good candidate to study, as patients with non-CNS cancer frequently report sleep disorders, and sleep plays a key role in cognitive functioning. The objective of the present systematic review was to summarize the results of studies evaluating the relationship between cognition and sleep in non-CNS cancer, and to highlight the need for further studies. PubMed [Medline] and Scopus databases were screened from April to November 2020 for studies published in English evaluating the association between cognition and sleep in adults with non-CNS cancer. The characteristics and risk of bias for each of the 30 included studies have been reported. Greater cognitive complaints in patients with non-CNS cancer were related to poorer self-reported sleep quality in almost all studies (n = 22/24). By contrast, around half of the studies reported a significant association between poorer neuropsychological performances and sleep complaints (n = 5/11). The studies were found to have several limitations, such as the lack of a control group, which would have shed the light on the period of occurrence of this association (e.g. after cancer diagnosis or after cancer treatments). Our review also identified factors that may influence the relationship between cognition and sleep. Recommendations are given for improving the methodology of future studies and extending the impact of their results.
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Affiliation(s)
- Mylène Duivon
- Normandie Univ, UNICAEN, PSL Research University, EPHE, INSERM, CHU de Caen, GIP Cyceron, U1077, Neuropsychologie et Imagerie de la Mémoire Humaine, 14000, Caen, France
| | - Bénédicte Giffard
- Normandie Univ, UNICAEN, PSL Research University, EPHE, INSERM, CHU de Caen, GIP Cyceron, U1077, Neuropsychologie et Imagerie de la Mémoire Humaine, 14000, Caen, France.,Ligue Contre Le Cancer, Cancer & Cognition Platform, 14076, Caen, France
| | - Béatrice Desgranges
- Normandie Univ, UNICAEN, PSL Research University, EPHE, INSERM, CHU de Caen, GIP Cyceron, U1077, Neuropsychologie et Imagerie de la Mémoire Humaine, 14000, Caen, France
| | - Joy Perrier
- Normandie Univ, UNICAEN, PSL Research University, EPHE, INSERM, CHU de Caen, GIP Cyceron, U1077, Neuropsychologie et Imagerie de la Mémoire Humaine, 14000, Caen, France.
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18
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Xian H, Li J, Zhang Y, Li D, Zhu Y, Li S, Tan Z, Lin Z, Li X, Pan Y. Antimetastatic Effects of Ganoderma lucidum Polysaccharide Peptide on B16-F10-luc-G5 Melanoma Mice With Sleep Fragmentation. Front Pharmacol 2021; 12:650216. [PMID: 34305583 PMCID: PMC8296642 DOI: 10.3389/fphar.2021.650216] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 06/09/2021] [Indexed: 01/01/2023] Open
Abstract
Ganoderma lucidum (Lingzhi) polysaccharide peptide (GL-pp) is a component of the globally acknowledged traditional Chinese medicine Ganoderma lucidum; Ganoderma lucidum is known for its sedative, hypnotic, immune regulatory, antitumor, and other pharmacological effects. In recent years, sleep disorders have been linked to many diseases and human body disorders, including cancer. Some experimental studies in mice found that sleep fragmentation could promote tumor development and progression. However, effects on GL-pp on tumor metastasis under circumstances of sleep disorders have rarely been studied. Thus, in this study, we used mice with sleep fragmentation (SF) bearing B16-F10-luc-G5 melanoma tumors to investigate the effect of SF on melanoma metastasis. Furthermore, we investigated the antitumor and antimetastatic effects of GL-pp (80 mg/kg) in mice suffering from SF and bearing B16-F10-luc-G5. Then, whole proteomics was used to analyze the differences in protein expression in the lung tissue between SF mice bearing B16-F10-luc-G5 with and without GL-pp administration. High-throughput pyrosequencing of 16S rRNA was also used to analyze the impact of GL-pp on the gut microbiota composition in SF mice bearing B16-F10-luc-G5. Last, the effects of GL-pp on macrophage polarization and TNF-α serum levels were detected. Collectively, we found that SF significantly facilitated the B16-F10-luc-G5 melanoma tumor metastasis in mice, while GL-pp significantly reduced B16-F10-luc-G5 melanoma tumor metastasis under the condition of SF, in which proteomics and gut microbiota had been changed greatly.
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Affiliation(s)
- Haocheng Xian
- Department of Pharmacology, School of Basic Medical Sciences, Health Science Center, Peking University and Beijing Key Laboratory of Tumor Systems Biology, Peking University, Beijing, China
| | - Jiayi Li
- Department of Pharmacology, School of Basic Medical Sciences, Health Science Center, Peking University and Beijing Key Laboratory of Tumor Systems Biology, Peking University, Beijing, China
| | - Yimeng Zhang
- Department of Pharmacology, School of Basic Medical Sciences, Health Science Center, Peking University and Beijing Key Laboratory of Tumor Systems Biology, Peking University, Beijing, China
| | - Ditian Li
- Department of Pharmacology, School of Basic Medical Sciences, Health Science Center, Peking University and Beijing Key Laboratory of Tumor Systems Biology, Peking University, Beijing, China
| | - Yinan Zhu
- Department of Pharmacology, School of Basic Medical Sciences, Health Science Center, Peking University and Beijing Key Laboratory of Tumor Systems Biology, Peking University, Beijing, China
| | - Siyan Li
- Department of Pharmacology, School of Basic Medical Sciences, Health Science Center, Peking University and Beijing Key Laboratory of Tumor Systems Biology, Peking University, Beijing, China
| | - Zhelun Tan
- Department of Pharmacology, School of Basic Medical Sciences, Health Science Center, Peking University and Beijing Key Laboratory of Tumor Systems Biology, Peking University, Beijing, China
| | - Zhibin Lin
- Department of Pharmacology, School of Basic Medical Sciences, Health Science Center, Peking University and Beijing Key Laboratory of Tumor Systems Biology, Peking University, Beijing, China
| | - Xuejun Li
- Department of Pharmacology, School of Basic Medical Sciences, Health Science Center, Peking University and Beijing Key Laboratory of Tumor Systems Biology, Peking University, Beijing, China
| | - Yan Pan
- Department of Pharmacology, School of Basic Medical Sciences, Health Science Center, Peking University and Beijing Key Laboratory of Tumor Systems Biology, Peking University, Beijing, China
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19
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Swanson LM, Hood MM, Hall MH, Kravitz HM, Matthews KA, Joffe H, Thurston RC, Butters MA, Ruppert K, Harlow SD. Associations between sleep and cognitive performance in a racially/ethnically diverse cohort: the Study of Women's Health Across the Nation. Sleep 2021; 44:5904755. [PMID: 32918472 DOI: 10.1093/sleep/zsaa182] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 08/25/2020] [Indexed: 01/04/2023] Open
Abstract
STUDY OBJECTIVES To determine whether actigraphy-assessed indices of sleep are associated with cognitive performance in women, and explore whether these associations vary by race/ethnicity. METHODS Participants were 1,126 postmenopausal community-dwelling females (mean age 65 years) from the observational Study of Women's Health Across the Nation (SWAN); 25% were black, 46% white, 13% Chinese, 11% Japanese, and 5% Hispanic. Actigraphy-assessed sleep measures included total sleep time, wake after sleep onset (WASO), and fragmentation. Cognitive measures included immediate and delayed verbal memory, working memory, and information processing speed. All measures were assessed in conjunction with SWAN annual visit 15. RESULTS Across the sample, after covariate adjustment, greater WASO and fragmentation were concurrently associated with slower information processing speed. Black participants had significantly worse sleep relative to other race/ethnic groups. Significant race/sleep interactions were observed; in black, but not white, participants, greater fragmentation was concurrently associated with worse verbal memory and slower information processing speed, and greater WASO was concurrently associated with slower information processing speed. Sleep-cognitive performance associations were not different in Chinese and Japanese participants relative to white participants. CONCLUSIONS Greater wakefulness and fragmentation during sleep are concurrently associated with slower information processing. Sleep continuity impacted concurrent cognitive performance in black, but not white, women. This effect may not have been detected in white women because their sleep was largely within the normal range. Future longitudinal studies in diverse samples are critical to further understand whether race/ethnicity moderates the influence of sleep on cognitive performance.
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Affiliation(s)
| | - Michelle M Hood
- Department of Epidemiology, University of Michigan, Ann Arbor, MI
| | | | - Howard M Kravitz
- Department of Psychiatry and Behavioral Sciences and Department of Preventive Medicine, Rush University Medical Center, Chicago, IL
| | | | - Hadine Joffe
- Connors Center for Women's Health and Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | | | | | | | - Siobán D Harlow
- Department of Epidemiology, University of Michigan, Ann Arbor, MI
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20
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Curtis AF, Dzierzewski JM, Buman MP, Giacobbi PR, Roberts BL, Aiken-Morgan AT, Marsiske M, McCrae CS. Preliminary investigation of interactive associations of sleep and pain with cognition in sedentary middle-aged and older adults. J Clin Sleep Med 2021; 17:233-242. [PMID: 33006311 PMCID: PMC7853205 DOI: 10.5664/jcsm.8856] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 09/27/2020] [Accepted: 09/28/2020] [Indexed: 11/13/2022]
Abstract
STUDY OBJECTIVES The objective of this study was to examine independent and interactive associations between self-reported sleep (sleep efficiency and total sleep time [TST]) and pain with cognition in sedentary middle-aged and older adults. METHODS Seventy-five sedentary adults at least 50 years of age (Mage = 63.24, standard deviation = 8.87) completed 14 daily diaries measuring sleep and pain. Weekly average sleep efficiency, TST, and pain were computed. Participants also completed computerized cognitive tasks: Letter Series (reasoning), N-back (working memory), Symbol Digit Modalities Test (processing speed, attention), and Number Copy (processing speed). Multiple regression analyses were conducted to determine independent and interactive (with pain) associations of sleep efficiency and TST with cognition, controlling for age, education, and sex. RESULTS Sleep efficiency and pain interacted in their associations with Letter Series performance and N-back difference scores (2-back minus 1-back). Specifically, higher sleep efficiency was associated with better reasoning and working memory in those with highest pain but not average or lowest pain. TST and pain also interacted in their associations with Letter Series performance. Specifically, longer TST associated with worse reasoning in those with lowest (not average or highest) pain. CONCLUSIONS Preliminary results show that in sedentary middle-aged and older adults, pain and sleep interact in their associations with executive function tasks. Higher sleep efficiency may be associated with better reasoning and working memory in those with highest pain. Lower TST may be associated with better reasoning in those with lowest pain. Studies evaluating temporal associations between sleep, pain, and cognition are needed.
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Affiliation(s)
- Ashley F. Curtis
- Department of Psychiatry, University of Missouri, Columbia, Missouri
- Department of Psychological Sciences, University of Missouri, Columbia, Missouri
| | | | - Matthew P. Buman
- College of Health Solutions, Arizona State University, Tempe, Arizona
| | - Peter R. Giacobbi
- College of Physical Activity and Sport Sciences, West Virginia University, Morgantown, West Virginia
| | | | - Adrienne T. Aiken-Morgan
- Department of Psychology, North Carolina A&T State University, Greensboro, North Carolina
- Center on Health and Society, Social Science Research Institute, Duke University, Durham, North Carolina
| | - Michael Marsiske
- Department of Clinical and Health Psychology, University of Florida, Gainesville, Florida
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21
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Kuang H, Zhu YG, Zhou ZF, Yang MW, Hong FF, Yang SL. Sleep disorders in Alzheimer's disease: the predictive roles and potential mechanisms. Neural Regen Res 2021; 16:1965-1972. [PMID: 33642368 PMCID: PMC8343328 DOI: 10.4103/1673-5374.308071] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Sleep disorders are common in patients with Alzheimer's disease, and can even occur in patients with amnestic mild cognitive impairment, which appears before Alzheimer's disease. Sleep disorders further impair cognitive function and accelerate the accumulation of amyloid-β and tau in patients with Alzheimer's disease. At present, sleep disorders are considered as a risk factor for, and may be a predictor of, Alzheimer's disease development. Given that sleep disorders are encountered in other types of dementia and psychiatric conditions, sleep-related biomarkers to predict Alzheimer's disease need to have high specificity and sensitivity. Here, we summarize the major Alzheimer's disease-specific sleep changes, including abnormal non-rapid eye movement sleep, sleep fragmentation, and sleep-disordered breathing, and describe their ability to predict the onset of Alzheimer's disease at its earliest stages. Understanding the mechanisms underlying these sleep changes is also crucial if we are to clarify the role of sleep in Alzheimer's disease. This paper therefore explores some potential mechanisms that may contribute to sleep disorders, including dysregulation of the orexinergic, glutamatergic, and γ-aminobutyric acid systems and the circadian rhythm, together with amyloid-β accumulation. This review could provide a theoretical basis for the development of drugs to treat Alzheimer's disease based on sleep disorders in future work.
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Affiliation(s)
- Huang Kuang
- Department of Physiology, College of Medicine, Nanchang University, Nanchang, Jiangxi Province, China
| | - Yu-Ge Zhu
- Department of Physiology, College of Medicine, Nanchang University, Nanchang, Jiangxi Province, China
| | - Zhi-Feng Zhou
- Department of Physiology, College of Medicine, Nanchang University, Nanchang, Jiangxi Province, China
| | - Mei-Wen Yang
- Department of Nurse, Nanchang University Hospital, Nanchang, Jiangxi Province, China
| | - Fen-Fang Hong
- Department of Experimental Teaching Center, Nanchang University, Nanchang, Jiangxi Province, China
| | - Shu-Long Yang
- Department of Physiology, College of Medicine, Nanchang University, Nanchang, Jiangxi Province, China
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22
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Garnier-Crussard A, Bougacha S, Wirth M, André C, Delarue M, Landeau B, Mézenge F, Kuhn E, Gonneaud J, Chocat A, Quillard A, Ferrand-Devouge E, de La Sayette V, Vivien D, Krolak-Salmon P, Chételat G. White matter hyperintensities across the adult lifespan: relation to age, Aβ load, and cognition. ALZHEIMERS RESEARCH & THERAPY 2020; 12:127. [PMID: 33032654 PMCID: PMC7545576 DOI: 10.1186/s13195-020-00669-4] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 08/17/2020] [Indexed: 11/16/2022]
Abstract
Background White matter hyperintensities (WMH) are very frequent in older adults and associated with worse cognitive performance. Little is known about the links between WMH and vascular risk factors, cortical β-amyloid (Aβ) load, and cognition in cognitively unimpaired adults across the entire lifespan, especially in young and middle-aged adults. Methods One hundred and thirty-seven cognitively unimpaired adults from the community were enrolled (IMAP cohort). Participants underwent (i) a comprehensive neuropsychological assessment of episodic memory, processing speed, working memory, and executive functions; (ii) brain structural T1 and FLAIR MRI scans used for the automatic segmentation of total and regional (frontal, parietal, temporal, occipital, and corpus callosum) WMH; and (iii) a Florbetapir-PET scan to measure cortical Aβ. The relationships of total and regional WMH to age, vascular risk factors, cortical Aβ, and cognition were assessed within the whole sample, but also splitting the sample in two age groups (≤ or > 60 years old). Results WMH increased with age across the adult lifespan, i.e., even in young and middle-aged adults. Systolic blood pressure, diastolic blood pressure, and glycated hemoglobin were all associated with higher WMH before, but not after, adjusting for age and the other vascular risk factors. Higher frontal, temporal, and occipital WMH were associated with greater Aβ, but this association was no longer significant when adjusting for age and vascular risk factors. Higher total and frontal WMH were associated with worse performance in executive functions, with no interactive effect of the age group. In contrast, there was a significant interaction of the age group on the link between WMH and working memory, which was significant within the subgroup of young/middle-aged adults only. Adding cortical Aβ load in the models did not alter the results, and there was no interaction between WMH and Aβ on cognition. Conclusion WMH increased with age and were associated with worse executive functions across the adult lifespan and with worse working memory in young/middle-aged adults. Aβ load was weakly associated with WMH and did not change the relationship found between WMH and executive functions. This study argues for the clinical relevance of WMH across the adult lifespan, even in young and middle-aged adults with low WMH.
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Affiliation(s)
- Antoine Garnier-Crussard
- Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", Institut Blood and Brain @ Caen-Normandie, Cyceron, 14000, Caen, France.,Clinical and Research Memory Center of Lyon, Lyon Institute For Elderly, Charpennes Hospital, Hospices Civils de Lyon, Lyon, France.,Claude Bernard University Lyon 1, Lyon, France
| | - Salma Bougacha
- Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", Institut Blood and Brain @ Caen-Normandie, Cyceron, 14000, Caen, France
| | - Miranka Wirth
- German Center for Neurodegenerative Diseases (DZNE), Dresden, Germany
| | - Claire André
- Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", Institut Blood and Brain @ Caen-Normandie, Cyceron, 14000, Caen, France.,Normandie Univ, UNICAEN, PSL Université, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, NIMH, Caen, France
| | - Marion Delarue
- Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", Institut Blood and Brain @ Caen-Normandie, Cyceron, 14000, Caen, France
| | - Brigitte Landeau
- Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", Institut Blood and Brain @ Caen-Normandie, Cyceron, 14000, Caen, France
| | - Florence Mézenge
- Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", Institut Blood and Brain @ Caen-Normandie, Cyceron, 14000, Caen, France
| | - Elizabeth Kuhn
- Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", Institut Blood and Brain @ Caen-Normandie, Cyceron, 14000, Caen, France
| | - Julie Gonneaud
- Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", Institut Blood and Brain @ Caen-Normandie, Cyceron, 14000, Caen, France
| | - Anne Chocat
- Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", Institut Blood and Brain @ Caen-Normandie, Cyceron, 14000, Caen, France
| | - Anne Quillard
- Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", Institut Blood and Brain @ Caen-Normandie, Cyceron, 14000, Caen, France
| | - Eglantine Ferrand-Devouge
- Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", Institut Blood and Brain @ Caen-Normandie, Cyceron, 14000, Caen, France.,Department of General Practice, Normandie Univ, UNIROUEN, Rouen, France.,Rouen University Hospital, Inserm CIC-CRB 1404, F-76 000, Rouen, France
| | - Vincent de La Sayette
- Normandie Univ, UNICAEN, PSL Université, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, NIMH, Caen, France.,Department of Neurology, CHU de Caen, Caen, France
| | - Denis Vivien
- Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", Institut Blood and Brain @ Caen-Normandie, Cyceron, 14000, Caen, France.,Department of Clinical Research, CHU de Caen, Caen, France
| | - Pierre Krolak-Salmon
- Clinical and Research Memory Center of Lyon, Lyon Institute For Elderly, Charpennes Hospital, Hospices Civils de Lyon, Lyon, France.,Claude Bernard University Lyon 1, Lyon, France.,Lyon Neuroscience Research Centre, INSERM 1028, CNRS 5292, Lyon, France
| | - Gaël Chételat
- Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", Institut Blood and Brain @ Caen-Normandie, Cyceron, 14000, Caen, France.
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23
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Buegler M, Harms R, Balasa M, Meier IB, Exarchos T, Rai L, Boyle R, Tort A, Kozori M, Lazarou E, Rampini M, Cavaliere C, Vlamos P, Tsolaki M, Babiloni C, Soricelli A, Frisoni G, Sanchez-Valle R, Whelan R, Merlo-Pich E, Tarnanas I. Digital biomarker-based individualized prognosis for people at risk of dementia. ALZHEIMER'S & DEMENTIA: DIAGNOSIS, ASSESSMENT & DISEASE MONITORING 2020; 12:e12073. [PMID: 32832589 PMCID: PMC7437401 DOI: 10.1002/dad2.12073] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 06/30/2020] [Indexed: 12/23/2022]
Abstract
Background Research investigating treatments and interventions for cognitive decline fail due to difficulties in accurately recognizing behavioral signatures in the presymptomatic stages of the disease. For this validation study, we took our previously constructed digital biomarker‐based prognostic models and focused on generalizability and robustness of the models. Method We validated prognostic models characterizing subjects using digital biomarkers in a longitudinal, multi‐site, 40‐month prospective study collecting data in memory clinics, general practitioner offices, and home environments. Results Our models were able to accurately discriminate between healthy subjects and individuals at risk to progress to dementia within 3 years. The model was also able to differentiate between people with or without amyloid neuropathology and classify fast and slow cognitive decliners with a very good diagnostic performance. Conclusion Digital biomarker prognostic models can be a useful tool to assist large‐scale population screening for the early detection of cognitive impairment and patient monitoring over time.
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Affiliation(s)
| | | | - Mircea Balasa
- Global Brain Health Institute San Francisco, California USA
| | | | - Themis Exarchos
- Bioinformatics and Human Electrophysiology Laboratory Corfu Greece
| | - Laura Rai
- Trinity College Institute of Neuroscience College Green, Dublin Ireland
| | - Rory Boyle
- Trinity College Institute of Neuroscience College Green, Dublin Ireland
| | - Adria Tort
- Institut d'Investigació Biomèdica August Pi i Sunyer Carrer del Rosselló, Barcelona Spain
| | - Maha Kozori
- Greek Association for Alzheimer's Disease and Related Disorders, Thessaloniki Greece
| | - Eutuxia Lazarou
- Greek Association for Alzheimer's Disease and Related Disorders, Thessaloniki Greece
| | | | | | | | - Magda Tsolaki
- 1st Department of Neurology AHEPA University Hospital, Thessaloniki Greece.,Information Technologies Institute Centre for Research and Technology Hellas (CERTH); Aristotle University of Thessaloniki, Thermi Greece
| | - Claudio Babiloni
- Department of Physiology and Pharmacology University of Rome, Roma Italy.,San Raffaele Cassino, Cassino (FR), Italy
| | - Andrea Soricelli
- 1st Department of Neurology AHEPA University Hospital, Thessaloniki Greece.,University of Naples Parthenope, Napoli Italy
| | - Giovanni Frisoni
- University of Geneva, Geneva Switzerland.,Laboratory of Neuroimaging and Alzheimer's Epidemiology IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia Italy.,Memory Clinic and LANVIE, Geneva Switzerland.,University of Brescia, Brescia Italy
| | - Raquel Sanchez-Valle
- IDIBAPS Neurological Tissue Bank Hospital Clinic, Barcelona Spain.,Institut d'Investigació Biomèdica August Pi i Sunyer, Barcelona Spain.,Alzheimer's Disease and Other Cognitive Disorders Unit Hospital Clínic Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona Spain
| | - Robert Whelan
- Trinity College Institute of Neuroscience College Green, Dublin Ireland
| | | | - Ioannis Tarnanas
- Altoida Inc. Houston, Texas USA.,Global Brain Health Institute San Francisco, California USA.,Hellenic Initiative Against Alzheimer's Disease, Johns Hopkins Precision Medicine Center, Baltimore, Maryland, United States and BiHeLab, Ionian University, Kerkira, Greece
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24
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Triplett J, Ellis D, Braddock A, Roberts E, Ingram K, Perez E, Short A, Brown D, Hutzley V, Webb C, Soto A, Chan V. Temporal and region-specific effects of sleep fragmentation on gut microbiota and intestinal morphology in Sprague Dawley rats. Gut Microbes 2020; 11:706-720. [PMID: 31924109 PMCID: PMC7524289 DOI: 10.1080/19490976.2019.1701352] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Sleep is a fundamental biological process, that when repeatedly disrupted, can result in severe health consequences. Recent studies suggest that both sleep fragmentation (SF) and dysbiosis of the gut microbiome can lead to metabolic disorders, though the underlying mechanisms are largely unclear. To better understand the consequences of SF, we investigated the effects of acute (6 days) and chronic (6 weeks) SF on rats by examining taxonomic profiles of microbiota in the distal ileum, cecum and proximal colon, as well as assessing structural and functional integrity of the gastrointestinal barrier. We further assayed the impact of SF on a host function by evaluating inflammation and immune response. Both acute and chronic SF induced microbial dysbiosis, more dramatically in the distal ileum (compared to other two regions studied), as noted by significant perturbations in alpha- and beta-diversity; though, specific microbial populations were significantly altered throughout each of the three regions. Furthermore, chronic SF resulted in increased crypt depth in the distal ileum and an increase in the number of villi lining both the cecum and proximal colon. Additional changes were noted with chronic SF, including: decreased microbial adhesion and penetration in the distal ileum and cecum, elevation in serum levels of the cytokine KC/GRO, and depressed levels of corticotropin. Importantly, our data show that perturbations to microbial ecology and intestinal morphology intensify in response to prolonged SF and these changes are habitat specific. Together, these results reveal consequences to gut microbiota homeostasis and host response following acute and chronic SF in rats.
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Affiliation(s)
- Judy Triplett
- Air Force Research Laboratory, Oak Ridge Institute for Science and Education (ORISE), Oak Ridge, TN, USA
| | - David Ellis
- Air Force Research Laboratory, Oak Ridge Institute for Science and Education (ORISE), Oak Ridge, TN, USA
| | - Amber Braddock
- Henry M. Jackson Foundation for the Advancement of Military Medicine (HJF), Wright-Patterson AFB, OH, USA
| | - Erin Roberts
- Air Force Research Laboratory, Oak Ridge Institute for Science and Education (ORISE), Oak Ridge, TN, USA
| | - Katherine Ingram
- Air Force Research Laboratory, Oak Ridge Institute for Science and Education (ORISE), Oak Ridge, TN, USA
| | - Eric Perez
- Air Force Research Laboratory, Oak Ridge Institute for Science and Education (ORISE), Oak Ridge, TN, USA
| | - Amanda Short
- Air Force Research Laboratory, Oak Ridge Institute for Science and Education (ORISE), Oak Ridge, TN, USA
| | - Dominique Brown
- Molecular Mechanisms Branch, Human Centered ISR Division, Airman Systems Directorate, 711 Human Performance Wing, Air Force Research Laboratory (711 HPW/RHXJ), Wright-Patterson AFB, OH, USA
| | - Victoria Hutzley
- Molecular Mechanisms Branch, Human Centered ISR Division, Airman Systems Directorate, 711 Human Performance Wing, Air Force Research Laboratory (711 HPW/RHXJ), Wright-Patterson AFB, OH, USA
| | - Chelsey Webb
- Molecular Mechanisms Branch, Human Centered ISR Division, Airman Systems Directorate, 711 Human Performance Wing, Air Force Research Laboratory (711 HPW/RHXJ), Wright-Patterson AFB, OH, USA
| | - Armando Soto
- Molecular Mechanisms Branch, Human Centered ISR Division, Airman Systems Directorate, 711 Human Performance Wing, Air Force Research Laboratory (711 HPW/RHXJ), Wright-Patterson AFB, OH, USA
| | - Victor Chan
- Molecular Mechanisms Branch, Human Centered ISR Division, Airman Systems Directorate, 711 Human Performance Wing, Air Force Research Laboratory (711 HPW/RHXJ), Wright-Patterson AFB, OH, USA,CONTACT Victor Chan Molecular Mechanisms Branch, Human Centered ISR Division, Airman Systems Directorate, 711 Human Performance Wing, Air Force Research Laboratory (711 HPW/RHXJ), Wright-Patterson AFB, OH, USA
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25
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Hinault T, Kraut M, Bakker A, Dagher A, Courtney SM. Disrupted Neural Synchrony Mediates the Relationship between White Matter Integrity and Cognitive Performance in Older Adults. Cereb Cortex 2020; 30:5570-5582. [DOI: 10.1093/cercor/bhaa141] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 04/14/2020] [Accepted: 05/06/2020] [Indexed: 12/16/2022] Open
Abstract
Abstract
Our main goal was to determine the influence of white matter integrity on the dynamic coupling between brain regions and the individual variability of cognitive performance in older adults. Electroencephalography was recorded while participants performed a task specifically designed to engage working memory and inhibitory processes, and the associations among functional activity, structural integrity, and cognitive performance were assessed. We found that the association between white matter microstructural integrity and cognitive functioning with aging is mediated by time-varying alpha and gamma phase-locking value. Specifically, better preservation of the inferior fronto-occipital fasciculus in older individuals drives faster task-related modulations of alpha and gamma long-range phase-locking value between the inferior frontal gyrus and occipital lobe and lower local phase-amplitude coupling in occipital lobes, which in turn drives better cognitive control performance. Our results help delineate the role of individual variability of white matter microstructure in dynamic synchrony and cognitive performance during normal aging.
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Affiliation(s)
- T Hinault
- U1077 INSERM-EPHE-UNICAEN, Caen, 14000, France
- Department of Psychological and Brain Sciences, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - M Kraut
- Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA
| | - A Bakker
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA
- F.M. Kirby Research Center, Kennedy Krieger Institute, Baltimore, MD 21205, USA
| | - A Dagher
- McConnell Brain Imaging Centre, Montreal Neurological Institute, McGill University, Montréal QC, H3A 2B4, Canada
| | - S M Courtney
- Department of Psychological and Brain Sciences, Johns Hopkins University, Baltimore, MD, 21218, USA
- F.M. Kirby Research Center, Kennedy Krieger Institute, Baltimore, MD 21205, USA
- Department of Neuroscience, Johns Hopkins University, Baltimore, MD 21205, USA
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26
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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: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Grau-Rivera O, Operto G, Falcón C, Sánchez-Benavides G, Cacciaglia R, Brugulat-Serrat A, Gramunt N, Salvadó G, Suárez-Calvet M, Minguillon C, Iranzo Á, Gispert JD, Molinuevo JL. Association between insomnia and cognitive performance, gray matter volume, and white matter microstructure in cognitively unimpaired adults. ALZHEIMERS RESEARCH & THERAPY 2020; 12:4. [PMID: 31907066 PMCID: PMC6945611 DOI: 10.1186/s13195-019-0547-3] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 10/17/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND Mounting evidence links poor sleep quality with a higher risk of late-life dementia. However, the structural and cognitive correlates of insomnia are still not well understood. The study aims were to characterize the cognitive performance and brain structural pattern of cognitively unimpaired adults at increased risk for Alzheimer's disease (AD) with insomnia. METHODS This cross-sectional study included 1683 cognitively unimpaired middle/late-middle-aged adults from the ALFA (ALzheimer and FAmilies) study who underwent neuropsychological assessment, T1-weighted structural imaging (n = 366), and diffusion-weighted imaging (n = 334). The World Health Organization's World Mental Health Survey Initiative version of the Composite International Diagnostic Interview was used to define the presence or absence of insomnia. Multivariable regression models were used to evaluate differences in cognitive performance between individuals with and without insomnia, as well as potential interactions between insomnia and the APOE genotype. Voxel-based morphometry and tract-based spatial statistics were used to assess between-group differences and potential interactions between insomnia and the APOE genotype in gray matter volume and white matter diffusion metrics. RESULTS Insomnia was reported by 615 out of 1683 participants (36.5%), including 137 out of 366 (37.4%) with T1-weighted structural imaging available and 119 out of 334 (35.6%) with diffusion-weighted imaging. Individuals with insomnia (n = 615) performed worse in executive function tests than non-insomniacs and displayed lower gray matter volume in left orbitofrontal and right middle temporal cortex, bilateral precuneus, posterior cingulate cortex and thalamus, higher gray matter volume in the left caudate nucleus, and widespread reduction of mean and axial diffusivity in right hemisphere white matter tracts. Insomnia interacted with the APOE genotype, with APOE-ε4 carriers displaying lower gray matter volumes when insomnia was present, but higher volumes when insomnia was not present, in several gray matter regions, including the left angular gyrus, the bilateral superior frontal gyri, the thalami, and the right hippocampus. CONCLUSIONS Insomnia in cognitively unimpaired adults at increased risk for AD is associated to poorer performance in some executive functions and volume changes in cortical and subcortical gray matter, including key areas involved in Alzheimer's disease, as well as decreased white matter diffusivity.
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Affiliation(s)
- Oriol Grau-Rivera
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Wellington 30, 08003, Barcelona, Spain.,Servei de Neurologia, Hospital del Mar, Barcelona, Spain
| | - Grégory Operto
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Wellington 30, 08003, Barcelona, Spain
| | - Carles Falcón
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Wellington 30, 08003, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Madrid, Spain
| | - Gonzalo Sánchez-Benavides
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Wellington 30, 08003, Barcelona, Spain.,CIBER Fragilidad y Envejecimiento Saludable (CIBERFES), Madrid, Spain
| | - Raffaele Cacciaglia
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Wellington 30, 08003, Barcelona, Spain
| | - Anna Brugulat-Serrat
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Wellington 30, 08003, Barcelona, Spain
| | - Nina Gramunt
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Wellington 30, 08003, Barcelona, Spain.,CIBER Fragilidad y Envejecimiento Saludable (CIBERFES), Madrid, Spain
| | - Gemma Salvadó
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Wellington 30, 08003, Barcelona, Spain
| | - Marc Suárez-Calvet
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Wellington 30, 08003, Barcelona, Spain.,Servei de Neurologia, Hospital del Mar, Barcelona, Spain
| | - Carolina Minguillon
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Wellington 30, 08003, Barcelona, Spain.,CIBER Fragilidad y Envejecimiento Saludable (CIBERFES), Madrid, Spain
| | - Álex Iranzo
- Neurology Service, Hospital Clínic de Barcelona and Institut D'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain.,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Hospital Clínic de Barcelona, Barcelona, Spain
| | - Juan Domingo Gispert
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Wellington 30, 08003, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Madrid, Spain.,Universitat Pompeu Fabra, Barcelona, Spain
| | - José Luis Molinuevo
- Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Wellington 30, 08003, Barcelona, Spain. .,CIBER Fragilidad y Envejecimiento Saludable (CIBERFES), Madrid, Spain. .,Universitat Pompeu Fabra, Barcelona, Spain. .,IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain.
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