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Daher AM, Burud I, Subair M, Mushahar L, Xin LJ. The prevalence of sleep deprivation and its impact among medical officers in a tertiary hospital, a cross-sectional study from Malaysia. PLoS One 2024; 19:e0306574. [PMID: 39208315 PMCID: PMC11361673 DOI: 10.1371/journal.pone.0306574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 06/19/2024] [Indexed: 09/04/2024] Open
Abstract
Sleep deprivation (SD), defined as an inability to get a minimum of 7 hours of regular sleep at night is a serious health problem that impacts the performance of medical professionals. This study aims to determine the impact of sleep deprivation on perceived performance among medical officers (MOs). A cross-sectional study design involved 231 MOs from six disciplines in Hospital Tuanku Ja'afar, a tertiary center in the south of Malaysia. A self-administered questionnaire was introduced in the English language. The questionnaire involved the sociodemographic characteristics; job-related factors, and the Sleep Deprivation Impact Scale (SDIS). The SDIS is a 12-question scale, rated on a 5-point Likert scale from strongly disagree to strongly agree. A higher SDIS score reflected a higher impact of sleep deprivation. A total of 206 MOs returned the completed questionnaire yielding a response rate of 89.17%. The mean age of respondents was 31.68 (±3.49) years. Most of the respondents were female, of Malay ethnicity, and married. More than three-quarters (78.64%) reported sleep deprivation. Being less effective in communication and formulating diagnosis (3 (1.01) vs 2.5 (1.15),p = 0.005); taking longer time to do things (3.44 (1.07) vs 2.8 (1.34),p = 0.001); and feeling unsafe while driving (3.56 (1.25) vs 2.93 (1.55),p = 0.006) manifested significantly higher mean among sleep-deprived respondents. In conclusion, sleep deprivation is a prevalent problem; that adversely affects crucial functioning domains that may endanger patients and healthcare providers alike. Radical countermeasures are required to ensure satisfactory sleep duration and address areas jeopardizing MO safety.
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Affiliation(s)
- Aqil M. Daher
- Department of Public Health and Community Medicine, School of Medicine,IMU University, Kuala Lumpur, Malaysia
| | - Ismail Burud
- Department of Surgery, School of Medicine,IMU University, Clinical Campus, Seremban, Malaysia
| | - Mehrdad Subair
- School of Postgraduate Studies,IMU University, Kuala Lumpur, Malaysia
| | - Lily Mushahar
- Department of Nephrology, Hospital Tuanku Ja’afar, Ministry of Health, Seremban, Malaysia
| | - Law Jia Xin
- Department of Surgery, Hospital Tuanku Ja’afar, Ministry of Health, Seremban, Malaysia
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Xu Q, Kim Y, Chung K, Schulz P, Gottlieb A. Prediction of Mild Cognitive Impairment Status: Pilot Study of Machine Learning Models Based on Longitudinal Data From Fitness Trackers. JMIR Form Res 2024; 8:e55575. [PMID: 39024003 PMCID: PMC11294783 DOI: 10.2196/55575] [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: 12/17/2023] [Revised: 02/15/2024] [Accepted: 06/08/2024] [Indexed: 07/20/2024] Open
Abstract
BACKGROUND Early signs of Alzheimer disease (AD) are difficult to detect, causing diagnoses to be significantly delayed to time points when brain damage has already occurred and current experimental treatments have little effect on slowing disease progression. Tracking cognitive decline at early stages is critical for patients to make lifestyle changes and consider new and experimental therapies. Frequently studied biomarkers are invasive and costly and are limited for predicting conversion from normal to mild cognitive impairment (MCI). OBJECTIVE This study aimed to use data collected from fitness trackers to predict MCI status. METHODS In this pilot study, fitness trackers were worn by 20 participants: 12 patients with MCI and 8 age-matched controls. We collected physical activity, heart rate, and sleep data from each participant for up to 1 month and further developed a machine learning model to predict MCI status. RESULTS Our machine learning model was able to perfectly separate between MCI and controls (area under the curve=1.0). The top predictive features from the model included peak, cardio, and fat burn heart rate zones; resting heart rate; average deep sleep time; and total light activity time. CONCLUSIONS Our results suggest that a longitudinal digital biomarker differentiates between controls and patients with MCI in a very cost-effective and noninvasive way and hence may be very useful for identifying patients with very early AD who can benefit from clinical trials and new, disease-modifying therapies.
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Affiliation(s)
- Qidi Xu
- McWilliams School of Biomedical Informatics, University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Yejin Kim
- McWilliams School of Biomedical Informatics, University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Karen Chung
- McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Paul Schulz
- McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Assaf Gottlieb
- McWilliams School of Biomedical Informatics, University of Texas Health Science Center at Houston, Houston, TX, United States
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Haldar P, Tripathi M, Prasad K, Kant S, Dwivedi SN, Vibha D, Pandit AK, Srivastava AK, Kumar A, Ikram MA, Henning T. Association of obstructive sleep apnea and sleep quality with cognitive function: a study of middle-aged and elderly persons in India. Sleep Breath 2024; 28:975-987. [PMID: 38055152 DOI: 10.1007/s11325-023-02953-7] [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: 09/04/2023] [Revised: 10/28/2023] [Accepted: 11/20/2023] [Indexed: 12/07/2023]
Abstract
INTRODUCTION Symptoms of obstructive sleep apnea (OSA) and poor sleep quality affect around one in ten people in India. We aimed to determine if OSA symptoms and poor sleep quality are independently associated with cognition in middle-aged and elderly urban Indian populations. METHODS We studied the cross-sectional association between OSA symptoms (by Berlin Questionnaire), poor sleep quality (by Pittsburgh Sleep Quality Index), and cognitive function in adults ≥ 50 years. Using a standard neuropsychological battery for cognitive function, a G-factor was derived as the first rotated principal component assessing domains of information processing, memory, and executive function. The associations of exposures with cognitive measures were modeled using linear regression, adjusted for metabolic risk factors, lifestyle factors, and psychosocial problems, followed by stratified analysis by decadal age group. RESULTS A total of 7505 adults were enrolled. Excluding those with MMSE < 26 (n 710), of 6795 individuals (49.2% women), mean (SD) age 64.2 (9.0) years, 38.3% had high risk of OSA symptoms, and 15.9% had poor sleep quality. OSA symptoms were negatively associated with cognitive domains of information processing (adjusted beta coefficient of z-score - 0.02, p-value 0.006), memory (- 0.03, 0.014), and G-factor (- 0.11, 0.014) in full-model. Stratified analysis by age group showed significant adverse effects of OSA symptoms on cognition for middle-aged people (50-60 years) (- 0.26, 0.001), but not in later age groups. Poor sleep quality was also associated with lower cognitive scores for G-factor (- 0.48, < 0.001), memory (- 0.08, 0.005), and executive domains (- 0.12, < 0.001), but not with information domain. CONCLUSION The findings suggest that both symptoms of OSA and poor sleep quality have a direct adverse impact on cognition in an Indian setting. A modest effect of age on the relationship of OSA and cognition was also observed.
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Affiliation(s)
- Partha Haldar
- Centre for Community Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Manjari Tripathi
- Department of Neurology, All India Institute of Medical Sciences, New Delhi, India
| | - Kameshwar Prasad
- Rajendra Institute of Medical Sciences, Ranchi, 834009, Jharkhand, India.
| | - Shashi Kant
- Centre for Community Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Sada Nand Dwivedi
- Formerly at: Department of Biostatistics, All India Institute of Medical Sciences, New Delhi, India
| | - Deepti Vibha
- Department of Neurology, All India Institute of Medical Sciences, New Delhi, India
| | - Awadh Kishor Pandit
- Department of Neurology, All India Institute of Medical Sciences, New Delhi, India
| | | | - Amit Kumar
- Rajendra Institute of Medical Sciences, Ranchi, 834009, Jharkhand, India
| | - MArfan Ikram
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Tiemeier Henning
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands
- Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, USA
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4
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Ding Q. Editorial: The 3 S's: sex, stress, and sleep as risk factors for dementias. Front Aging Neurosci 2024; 16:1410797. [PMID: 38711598 PMCID: PMC11070573 DOI: 10.3389/fnagi.2024.1410797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Accepted: 04/10/2024] [Indexed: 05/08/2024] Open
Affiliation(s)
- Qunxing Ding
- Kent State University, East Liverpool, OH, United States
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Mayer G, Frohnhofen H, Jokisch M, Hermann DM, Gronewold J. Associations of sleep disorders with all-cause MCI/dementia and different types of dementia - clinical evidence, potential pathomechanisms and treatment options: A narrative review. Front Neurosci 2024; 18:1372326. [PMID: 38586191 PMCID: PMC10995403 DOI: 10.3389/fnins.2024.1372326] [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: 01/17/2024] [Accepted: 03/11/2024] [Indexed: 04/09/2024] Open
Abstract
Due to worldwide demographic change, the number of older persons in the population is increasing. Aging is accompanied by changes of sleep structure, deposition of beta-amyloid (Aß) and tau proteins and vascular changes and can turn into mild cognitive impairment (MCI) as well as dementia. Sleep disorders are discussed both as a risk factor for and as a consequence of MCI/dementia. Cross-sectional and longitudinal population-based as well as case-control studies revealed sleep disorders, especially sleep-disorderded breathing (SDB) and excessive or insufficient sleep durations, as risk factors for all-cause MCI/dementia. Regarding different dementia types, SDB was especially associated with vascular dementia while insomnia/insufficient sleep was related to an increased risk of Alzheimer's disease (AD). Scarce and still inconsistent evidence suggests that therapy of sleep disorders, especially continuous positive airway pressure (CPAP) in SDB, can improve cognition in patients with sleep disorders with and without comorbid dementia and delay onset of MCI/dementia in patients with sleep disorders without previous cognitive impairment. Regarding potential pathomechanisms via which sleep disorders lead to MCI/dementia, disturbed sleep, chronic sleep deficit and SDB can impair glymphatic clearance of beta-amyloid (Aß) and tau which lead to amyloid deposition and tau aggregation resulting in changes of brain structures responsible for cognition. Orexins are discussed to modulate sleep and Aß pathology. Their diurnal fluctuation is suppressed by sleep fragmentation and the expression suppressed at the point of hippocampal atrophy, contributing to the progression of dementia. Additionally, sleep disorders can lead to an increased vascular risk profile and vascular changes such as inflammation, endothelial dysfunction and atherosclerosis which can foster neurodegenerative pathology. There is ample evidence indicating that changes of sleep structure in aging persons can lead to dementia and also evidence that therapy of sleep disorder can improve cognition. Therefore, sleep disorders should be identified and treated early.
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Affiliation(s)
- Geert Mayer
- Department of Neurology, Philipps-Universität Marburg, Marburg, Germany
| | - Helmut Frohnhofen
- Department of Orthopedics and Trauma Surgery, University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf, Germany
- Department of Medicine, Geriatrics, Faculty of Health, University Witten-Herdecke, Witten, Germany
| | - Martha Jokisch
- Department of Neurology and Center for Translational Neuro-and Behavioral Sciences (C-TNBS), University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Dirk M. Hermann
- Department of Neurology and Center for Translational Neuro-and Behavioral Sciences (C-TNBS), University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Janine Gronewold
- Department of Neurology and Center for Translational Neuro-and Behavioral Sciences (C-TNBS), University Hospital Essen, University Duisburg-Essen, Essen, Germany
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Koutsonida M, Psyhogiou M, Aretouli E, Tsilidis KK. Sleep Quality and Cognitive Abilities in the Greek Cohort of Epirus Health Study. Nat Sci Sleep 2024; 16:33-42. [PMID: 38249621 PMCID: PMC10800107 DOI: 10.2147/nss.s436519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 01/03/2024] [Indexed: 01/23/2024] Open
Abstract
Purpose Sleep is essential to all human body functions as well as brain functions. Inadequate sleep quantity and poor sleep quality have been shown to directly affect cognitive functioning and especially memory. The primary aim of the present study was to investigate the association of sleep quality with cognitive abilities cross-sectionally in a middle-aged Greek population and secondarily to examine this association prospectively in a smaller group of these participants. Patients and Methods A total of 2112 healthy adults aged 25-70 years (mean: 46.7±11.5) from the Epirus Health Study cohort were included in the analysis and 312 of them participated in secondary prospective analysis. Sleep quality was measured by the Pittsburgh Sleep Quality Index (PSQI) scale and cognition was assessed in primary cross-sectional analyses with three neuropsychological tests, namely the Verbal Fluency test, the Logical Memory test and the Trail Making test, and in secondary prospective analyses with online versions of Posner cueing task, an emotional recognition task, the Corsi block-tapping task and the Stroop task. Statistical analysis was performed using multivariable linear regression models adjusted for age, sex, education, body mass index and alcohol consumption. Results Attention/processing speed was the only cognitive domain associated cross-sectionally with PSQI score. Specifically, participants with better self-reported sleep quality performed faster on the Trail Making Test - Part A (β= 0.272 seconds, 95% CI 0.052, 0.493). Conclusion Further studies are needed to clarify the association of sleep quality with cognition, especially in middle-aged people that are still in productive working years.
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Affiliation(s)
- Myrto Koutsonida
- Department of Hygiene and Epidemiology, University of Ioannina, School of Medicine, Ioannina, Greece
| | - Maria Psyhogiou
- Interdisciplinary Department 10B, General Hospital “Evaggelismos”, Athens, Greece
| | - Eleni Aretouli
- Department of Psychology, School of Social Sciences, University of Ioannina, Ioannina, Greece
| | - Konstantinos K Tsilidis
- Department of Hygiene and Epidemiology, University of Ioannina, School of Medicine, Ioannina, Greece
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK
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Delbari A, Tabatabaei FS, Jannatdoust P, Azimi A, Bidkhori M, Saatchi M, Foroughan M, Hooshmand E. The Relation of Sleep Characteristics and Cognitive Impairment in Community-Dwelling Middle-Aged and Older Adults: Ardakan Cohort Study on Aging (ACSA). Dement Geriatr Cogn Dis Extra 2024; 14:29-39. [PMID: 38939100 PMCID: PMC11208999 DOI: 10.1159/000539060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 04/20/2024] [Indexed: 06/29/2024] Open
Abstract
Introduction The rise in the elderly population has brought attention to mild cognitive impairment (MCI). Sleep disorders also affect many older adults, indicating an important area of research for disturbed sleep and faster brain aging. This population-based study aimed to investigate the association of several sleep indicators with cognitive performance. Methods This cross-sectional study focused on adults over 50 in the Ardakan Cohort Study on Aging (ACSA). MCI was evaluated using the Mini-Mental State Examination (MMSE) and the Abbreviated Mental Test score (AMTS) in literate and illiterate individuals. Sleep characteristics were collected using the Pittsburgh Sleep Quality Index (PSQI), Epworth Sleepiness Scale, and Berlin questionnaire. The logistic regression models were used to analyze the data. Results Overall, 3,380 literate and 1,558 illiterate individuals were included. In both groups, participants with MCI had a significantly higher PSQI global score (p < 0.05). Also, among the literate individuals, a significantly higher risk of having sleep-disordered breathing and poor sleep quality was observed in participants with MCI (p < 0.05). In illiterate individuals, higher sleep latency than 15 min increased odds of MCI (p < 0.05). However, after adjusting for all variables, only literate individuals with a sleep duration of more than 8 h had 66 percent increased odds of having MCI (p = 0.033). Conclusion Sleep duration might be associated with cognitive function in the older Iranian population. Our findings underscore the importance of considering sleep patterns in relation to cognitive health.
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Affiliation(s)
- Ahmad Delbari
- Iranian Research Center on Aging, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Fatemeh Sadat Tabatabaei
- Iranian Research Center on Aging, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Payam Jannatdoust
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Amirali Azimi
- Iranian Research Center on Aging, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Mohammad Bidkhori
- Iranian Research Center on Aging, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Mohammad Saatchi
- Department of Biostatistics and Epidemiology, School of Rehabilitation, University of Social Welfare and Rehabilitation Science, Tehran, Iran
- Health in Emergency and Disaster Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Mahshid Foroughan
- Iranian Research Center on Aging, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Elham Hooshmand
- Iranian Research Center on Aging, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
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8
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Yue L, Chen WG, Liu SC, Chen SB, Xiao SF. An explainable machine learning based prediction model for Alzheimer's disease in China longitudinal aging study. Front Aging Neurosci 2023; 15:1267020. [PMID: 38020780 PMCID: PMC10655104 DOI: 10.3389/fnagi.2023.1267020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 10/09/2023] [Indexed: 12/01/2023] Open
Abstract
Alzheimer's disease (AD) is the most common cause of dementia. Accurate prediction and diagnosis of AD and its prodromal stage, i.e., mild cognitive impairment (MCI), is essential for the possible delay and early treatment for the disease. In this paper, we adopt the data from the China Longitudinal Aging Study (CLAS), which was launched in 2011, and includes a joint effort of 15 institutions all over the country. Four thousand four hundred and eleven people who are at least 60 years old participated in the project, where 3,514 people completed the baseline survey. The survey collected data including demographic information, daily lifestyle, medical history, and routine physical examination. In particular, we employ ensemble learning and feature selection methods to develop an explainable prediction model for AD and MCI. Five feature selection methods and nine machine learning classifiers are applied for comparison to find the most dominant features on AD/MCI prediction. The resulting model achieves accuracy of 89.2%, sensitivity of 87.7%, and specificity of 90.7% for MCI prediction, and accuracy of 99.2%, sensitivity of 99.7%, and specificity of 98.7% for AD prediction. We further utilize the SHapley Additive exPlanations (SHAP) algorithm to visualize the specific contribution of each feature to AD/MCI prediction at both global and individual levels. Consequently, our model not only provides the prediction outcome, but also helps to understand the relationship between lifestyle/physical disease history and cognitive function, and enables clinicians to make appropriate recommendations for the elderly. Therefore, our approach provides a new perspective for the design of a computer-aided diagnosis system for AD and MCI, and has potential high clinical application value.
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Affiliation(s)
- Ling Yue
- The Department of Geriatric Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wu-gang Chen
- School of Computer and Information Engineering and Henan Engineering Research Center of Intelligent Technology and Application, Henan University, Kaifeng, China
| | - Sai-chao Liu
- School of Computer and Information Engineering and Henan Engineering Research Center of Intelligent Technology and Application, Henan University, Kaifeng, China
| | - Sheng-bo Chen
- School of Computer and Information Engineering and Henan Engineering Research Center of Intelligent Technology and Application, Henan University, Kaifeng, China
| | - Shi-fu Xiao
- The Department of Geriatric Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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9
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Shaib F. Neurologic Disorders in Women and Sleep. Neurol Clin 2023; 41:297-314. [PMID: 37030959 DOI: 10.1016/j.ncl.2023.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
Abstract
Sleep disorders in women remain underrecognized and underdiagnosed mainly because of gender bias in researching and characterizing sleep disorders in women. Symptoms of common sleep disorders are frequently missed in the general female population and are expected to be further overlooked because of overlapping symptoms in women with neurologic disorders. Given the bidirectional relationship with sleep and neurologic disorders, it remains critical to be aware of the presentation and impact of sleep disorders in this patient population. This article reviews available data on sleep disorders in women with neurologic disorders and discusses their distinctive features.
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Affiliation(s)
- Fidaa Shaib
- Pulmonary, Critical Care, and Sleep Medicine, Baylor College of Medicine, McNair Campus, 7200 Cambridge Street, Houston, TX 77030, USA.
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10
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Du L, Langhough R, Hermann BP, Jonaitis E, Betthauser TJ, Cody KA, Mueller K, Zuelsdorff M, Chin N, Ennis GE, Bendlin BB, Gleason CE, Christian BT, Plante DT, Chappell R, Johnson SC. Associations between self-reported sleep patterns and health, cognition and amyloid measures: results from the Wisconsin Registry for Alzheimer's Prevention. Brain Commun 2023; 5:fcad039. [PMID: 36910417 PMCID: PMC9999364 DOI: 10.1093/braincomms/fcad039] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 12/09/2022] [Accepted: 02/22/2023] [Indexed: 02/25/2023] Open
Abstract
Previous studies suggest associations between self-reported sleep problems and poorer health, cognition, Alzheimer's disease pathology and dementia-related outcomes. It is important to develop a deeper understanding of the relationship between these complications and sleep disturbance, a modifiable risk factor, in late midlife, a time when Alzheimer's disease pathology may be accruing. The objectives of this study included application of unsupervised machine learning procedures to identify distinct subgroups of persons with problematic sleep and the association of these subgroups with concurrent measures of mental and physical health, cognition and PET-identified amyloid. Dementia-free participants from the Wisconsin Registry for Alzheimer's Prevention (n = 619) completed sleep questionnaires including the Insomnia Severity Index, Epworth Sleepiness Scale and Medical Outcomes Study Sleep Scale. K-means clustering analysis identified discrete sleep problem groups who were then compared across concurrent health outcomes (e.g. depression, self-rated health and insulin resistance), cognitive composite indices including episodic memory and executive function and, in a subset, Pittsburgh Compound B PET imaging to assess amyloid burden. Significant omnibus tests (P < 0.05) were followed with pairwise comparisons. Mean (SD) sample baseline sleep assessment age was 62.6 (6.7). Cluster analysis identified three groups: healthy sleepers [n = 262 (42.3%)], intermediate sleepers [n = 229 (37.0%)] and poor sleepers [n = 128 (20.7%)]. All omnibus tests comparing demographics and health measures across sleep groups were significant except for age, sex and apolipoprotein E e4 carriers; the poor sleepers group was worse than one or both of the other groups on all other measures, including measures of depression, self-reported health and memory complaints. The poor sleepers group had higher average body mass index, waist-hip ratio and homeostatic model assessment of insulin resistance. After adjusting for covariates, the poor sleepers group also performed worse on all concurrent cognitive composites except working memory. There were no differences between sleep groups on PET-based measures of amyloid. Sensitivity analyses indicated that while different clustering approaches resulted in different group assignments for some (predominantly the intermediate group), between-group patterns in outcomes were consistent. In conclusion, distinct sleep characteristics groups were identified with a sizable minority (20.7%) exhibiting poor sleep characteristics, and this group also exhibited the poorest concurrent mental and physical health and cognition, indicating substantial multi-morbidity; sleep group was not associated with amyloid PET estimates. Precision-based management of sleep and related factors may provide an opportunity for early intervention that could serve to delay or prevent clinical impairment.
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Affiliation(s)
- Lianlian Du
- Wisconsin Alzheimer’s Institute, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53726, USA
- Department of Biostatistics and Medical Informatics, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53792, USA
| | - Rebecca Langhough
- Wisconsin Alzheimer’s Institute, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53726, USA
- Wisconsin Alzheimer’s Disease Research Center, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53792, USA
- Department of Medicine, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53726, USA
| | - Bruce P Hermann
- Wisconsin Alzheimer’s Institute, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53726, USA
- Department of Neurology, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53726, USA
| | - Erin Jonaitis
- Wisconsin Alzheimer’s Institute, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53726, USA
- Wisconsin Alzheimer’s Disease Research Center, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53792, USA
- Department of Medicine, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53726, USA
| | - Tobey J Betthauser
- Wisconsin Alzheimer’s Institute, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53726, USA
- Wisconsin Alzheimer’s Disease Research Center, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53792, USA
- Department of Medicine, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53726, USA
| | - Karly Alex Cody
- Wisconsin Alzheimer’s Institute, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53726, USA
- Wisconsin Alzheimer’s Disease Research Center, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53792, USA
- Department of Medicine, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53726, USA
| | - Kimberly Mueller
- Wisconsin Alzheimer’s Institute, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53726, USA
- Wisconsin Alzheimer’s Disease Research Center, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53792, USA
- Department of Medicine, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53726, USA
| | - Megan Zuelsdorff
- Wisconsin Alzheimer’s Disease Research Center, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53792, USA
- University of Wisconsin-Madison School of Nursing, Madison, WI 53705, USA
| | - Nathaniel Chin
- Wisconsin Alzheimer’s Disease Research Center, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53792, USA
- Department of Medicine, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53726, USA
| | - Gilda E Ennis
- Wisconsin Alzheimer’s Disease Research Center, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53792, USA
- Department of Medicine, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53726, USA
| | - Barbara B Bendlin
- Wisconsin Alzheimer’s Institute, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53726, USA
- Wisconsin Alzheimer’s Disease Research Center, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53792, USA
- Department of Medicine, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53726, USA
- Madison VA GRECC, William S. Middleton Memorial Hospital, Madison, WI 53705, USA
| | - Carey E Gleason
- Wisconsin Alzheimer’s Institute, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53726, USA
- Wisconsin Alzheimer’s Disease Research Center, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53792, USA
- Madison VA GRECC, William S. Middleton Memorial Hospital, Madison, WI 53705, USA
| | - Bradley T Christian
- Wisconsin Alzheimer’s Disease Research Center, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53792, USA
- Department of Medical Physics, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53705, USA
| | - David T Plante
- Department of Psychiatry, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53719, USA
| | - Rick Chappell
- Department of Biostatistics and Medical Informatics, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53792, USA
- Wisconsin Alzheimer’s Disease Research Center, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53792, USA
| | - Sterling C Johnson
- Wisconsin Alzheimer’s Institute, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53726, USA
- Wisconsin Alzheimer’s Disease Research Center, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53792, USA
- Department of Medicine, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53726, USA
- Madison VA GRECC, William S. Middleton Memorial Hospital, Madison, WI 53705, USA
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11
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Selbaek-Tungevåg S, Selbaek G, Strand BH, Myrstad C, Livingston G, Lydersen S, Bergh S, Ernstsen L. Insomnia and risk of dementia in a large population-based study with 11-year follow-up: The HUNT study. J Sleep Res 2023:e13820. [PMID: 36689779 DOI: 10.1111/jsr.13820] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 12/09/2022] [Accepted: 12/18/2022] [Indexed: 01/25/2023]
Abstract
Despite evidence suggesting that insomnia is associated with the risk of dementia and cognitive dysfunction, studies have shown mixed results. Dementia has a long prodromal phase, and studies with long follow-up are required to avoid reverse causality. In our 11-year follow-up study, we assessed whether probable insomnia disorder (PID) based on diagnostic criteria, and insomnia symptoms were associated with risk of all-cause dementia, Alzheimer's disease (AD) and cognition, measured with the Montreal Cognitive Assessment scale. We also examined if Apolipoprotein E genotype modified any associations with dementia through interaction. We analysed data from 7492 participants in the Norwegian Trøndelag Health Study. PID was not associated with all-cause dementia (odds ratio = 1.03, 95% confidence interval = 0.74-1.43), AD (odds ratio = 1.07, 95% confidence interval = 0.71-1.60) or Montreal Cognitive Assessment score (regression coefficient = 0.37, 95% confidence interval = -0.06 to 0.80). The insomnia symptom "difficulties maintaining sleep" was associated with a lower risk of all-cause dementia (odds ratio = 0.81, 95% confidence interval = 0.67-0.98), AD (odds ratio = 0.73, 95% confidence interval = 0.57-0.93), and better Montreal Cognitive Assessment score, mean 0.40 units (95% confidence interval = 0.15-0.64). No interaction with Apolipoprotein E genotype was found. PID and insomnia symptoms did not increase the risk of dementia in our study. More research with longer follow-up is needed, and future studies should explore if the associations to dementia risk vary across insomnia subtypes.
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Affiliation(s)
- Selma Selbaek-Tungevåg
- Department of Public Health and Nursing, Norwegian University of Science and Technology, Trondheim, Norway.,Surgical Department, Innlandet Hospital Trust, Lillehammer, Norway
| | - Geir Selbaek
- Norwegian National Centre for Ageing and Health, Vestfold Hospital Trust, Tønsberg, Norway.,Department of Geriatric Medicine, Oslo University Hospital, Oslo, Norway.,Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Bjørn Heine Strand
- Norwegian National Centre for Ageing and Health, Vestfold Hospital Trust, Tønsberg, Norway.,Department of Geriatric Medicine, Oslo University Hospital, Oslo, Norway.,Department for Physical Health and Ageing, Norwegian Institute of Public Health, Oslo, Norway
| | - Christian Myrstad
- Norwegian National Centre for Ageing and Health, Vestfold Hospital Trust, Tønsberg, Norway.,Department of Medicine, Levanger Hospital, Nord-Trøndelag Hospital Trust, Levanger, Norway
| | - Gill Livingston
- Division of Psychiatry, University College London, London, UK.,Camden and Islington NHS Foundation Trust, London, UK
| | - Stian Lydersen
- Regional Centre for Child and Youth Mental Health and Child Welfare, Department of Mental Health, Norwegian University of Science and Technology, Trondheim, Norway
| | - Sverre Bergh
- Norwegian National Centre for Ageing and Health, Vestfold Hospital Trust, Tønsberg, Norway.,Research Centre for Age-Related Functional Decline, Innlandet Hospital Trust, Brumunddal, Norway
| | - Linda Ernstsen
- Department of Public Health and Nursing, Norwegian University of Science and Technology, Trondheim, Norway
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12
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Liu S, Hu Z, Guo Y, Zhou F, Li S, Xu H. Association of sleep quality and nap duration with cognitive frailty among older adults living in nursing homes. Front Public Health 2022; 10:963105. [PMID: 36091504 PMCID: PMC9453392 DOI: 10.3389/fpubh.2022.963105] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 08/01/2022] [Indexed: 01/24/2023] Open
Abstract
Background Sleep status, including sleep quality and nap duration, may be associated with frailty and cognitive impairment in older adults. Older adults living in nursing homes may be more prone to physical and cognitive frailties. This study aimed to investigate the association between sleep quality and nap duration, and cognitive frailty among older adults living in nursing homes. Methods This study included 1,206 older adults aged ≥ 60 years from nursing homes in Hunan province, China. A simple frailty questionnaire (FRAIL scale) was used and Mini-Mental State Examination was conducted to assess physical frailty and cognitive impairment, respectively, to confirm cognitive frailty. The Pittsburgh Sleep Quality Index was used to assess the sleep quality. Nap duration was classified as follows: no, short (≤30 min), and long (>30 min) napping. Multinomial logistic regression was conducted to estimate the odds ratio (OR) and 95% confidence interval (CI). Results The prevalence of cognitive frailty among the older adults in nursing homes was 17.5%. Approximately 60.9% of the older adults had a poor sleep quality. Among the 1,206 participants, 43.9% did not take naps, 29.1% had short naps, and 26.9% had long naps. After adjusting for all covariates, poor sleep quality (OR 2.53; 95% CI 1.78-3.59; P < 0.001) and long nap duration (OR 1.77; 95% CI 1.19-2.64; P = 0.003) were associated with higher odds of cognitive frailty, but short nap duration (OR 0.60; 95% CI 0.40-0.89; P = 0.012) was associated with low prevalence of cognitive frailty. Conclusion Poor sleep quality and long nap duration are significantly associated with high risk of cognitive frailty among the older adults in nursing homes. Short nap duration was associated with low prevalence of cognitive frailty. However, these associations require further validation in older adults. Clinical trial registration https://osf.io/57hv8.
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13
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Gait Speed and Sleep Duration Is Associated with Increased Risk of MCI in Older Community-Dwelling Adults. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19137625. [PMID: 35805289 PMCID: PMC9266270 DOI: 10.3390/ijerph19137625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 06/18/2022] [Accepted: 06/19/2022] [Indexed: 12/29/2022]
Abstract
This study aimed to examine the linear and nonlinear associations between sleep duration and gait speed and the risk of developing mild cognitive impairment (MCI) in community-dwelling older adults. Participants were 233 older adults who met the study inclusion criteria. The MCI diagnosis was based on medical evaluations through a clinical interview conducted by a dementia specialist. Self-reported sleep duration was evaluated using the Pittsburgh Sleep Quality Index. The usual gait speed was calculated from the time taken to walk along a 4 m walkway. Multivariate logistic regression analysis was used to calculate the odds ratio (OR) and the 95% confidence interval (95% CI) of developing MCI in relation to sleep duration and gait speed. Generalized additive models were used to examine the dose−response relationships between sleep duration, gait speed, and the risk of developing MCI. Slower gait speed (OR: 1.84, 95%; CI: 1.00−3.13) and poor sleep duration (OR: 1.76, 95%; CI: 1.00−3.35) were associated with the risk of developing MCI, compared with their optimal status. In addition, the combination of poor sleep and slower gait was associated with a higher risk of developing MCI than optimal sleep duration and gait speed (OR: 3.13, 95%; CI: 1.93−5.14). Furthermore, gait speed and sleep duration were non-linearly associated with the risk of developing MCI. These results highlight the complex interplay and synergism between sleep duration and gait abilities on the risk of developing MCI in older adults. In addition, our results suggest that slower gait speed (<1.0 m/s) and short (<330 min) and long (>480 min) sleep duration may be linked to MCI risks through underlying pathways.
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14
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Wang Z, Heizhati M, Wang L, Li M, Yang Z, Lin M, Abudereyimu R, Hong J, Yang W, Yao L, Liu S, Hu J, Li N. Poor sleep quality is negatively associated with low cognitive performance in general population independent of self-reported sleep disordered breathing. BMC Public Health 2022; 22:3. [PMID: 34980052 PMCID: PMC8725333 DOI: 10.1186/s12889-021-12417-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 12/09/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Sleep disordered breathing (SDB) plays a significant role in both sleep quality and cognition and whether it has an impact on the relationship between above two factors remains to be clear. The study aimed to explore the association between sleep quality and cognitive performance in general population by considering influence of sleep disordered breathing (SDB). METHODS In this cross-sectional study, we enrolled subjects aged ≥ 18 years using a multi-stage random sampling method. Cognitive status was assessed using Mini Mental State Examination (MMSE) questionnaire, sleep quality using Pittsburgh Sleep Quality Index (PSQI) and SDB was assessed using No-SAS scale, respectively. Multi-variable logistic regression was applied to examine the association of sleep quality and cognitive performance. Subgroup analyses were performed in different age groups, and in those with and without SDB. RESULTS Finally, 30,872 participants aged 47.5 ± 13.8 years with 53.5% women were enrolled, of whom 32.4% had poor sleep quality and 18.6% had low cognitive performance. Compared with good sleepers, subjects with poor sleep quality exhibited significantly higher presence of low cognitive performance (23.7% vs 16.2%, P < 0.001). Poor sleepers revealed 1.26 (95%CI: 1.16,1.36), 1.26 (1.08,1.46) and 1.25 (1.14,1.37) fold odds for low cognitive performance in general population and in subjects with and without self-reported SDB respectively. Stratified by age and SDB, the association was observed in young and middle-aged group without SDB (OR = 1.44, 95%CI: 1.30,1.59) and in the elderly group with SDB (OR = 1.30, 95%CI: 1.07,1.58). CONCLUSIONS Sleep quality is in a negative association with cognitive performance in general population independent of SDB, implying improvement of sleep disturbances is a potential objective of intervention strategies for cognitive protection at population level.
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Affiliation(s)
- Zhongrong Wang
- Hypertension Center of People's Hospital of Xinjiang Uygur Autonomous Region, Xinjiang Hypertension Institute National Health Committee Key Laboratory of Hypertension Clinical Research, No. 91, Tianchi Road Urumqi, Xinjiang, 830001, China.,Xinjiang Hypertension Institute, Xinjiang, China.,National Health Committee Key Laboratory of Hypertension Clinical Research, Xinjiang, China.,Key Laboratory of Xinjiang Uygur Autonomous Region "Hypertension Research Laboratory, Xinjiang, China.,Xinjiang Clinical Medical Research Center for Hypertension (Cardio-Cerebrovascular) Diseases, Xinjiang, China
| | - Mulalibieke Heizhati
- Hypertension Center of People's Hospital of Xinjiang Uygur Autonomous Region, Xinjiang Hypertension Institute National Health Committee Key Laboratory of Hypertension Clinical Research, No. 91, Tianchi Road Urumqi, Xinjiang, 830001, China.,Xinjiang Hypertension Institute, Xinjiang, China.,National Health Committee Key Laboratory of Hypertension Clinical Research, Xinjiang, China.,Key Laboratory of Xinjiang Uygur Autonomous Region "Hypertension Research Laboratory, Xinjiang, China.,Xinjiang Clinical Medical Research Center for Hypertension (Cardio-Cerebrovascular) Diseases, Xinjiang, China
| | - Lin Wang
- Hypertension Center of People's Hospital of Xinjiang Uygur Autonomous Region, Xinjiang Hypertension Institute National Health Committee Key Laboratory of Hypertension Clinical Research, No. 91, Tianchi Road Urumqi, Xinjiang, 830001, China.,Xinjiang Hypertension Institute, Xinjiang, China.,National Health Committee Key Laboratory of Hypertension Clinical Research, Xinjiang, China.,Key Laboratory of Xinjiang Uygur Autonomous Region "Hypertension Research Laboratory, Xinjiang, China.,Xinjiang Clinical Medical Research Center for Hypertension (Cardio-Cerebrovascular) Diseases, Xinjiang, China
| | - Mei Li
- Hypertension Center of People's Hospital of Xinjiang Uygur Autonomous Region, Xinjiang Hypertension Institute National Health Committee Key Laboratory of Hypertension Clinical Research, No. 91, Tianchi Road Urumqi, Xinjiang, 830001, China.,Xinjiang Hypertension Institute, Xinjiang, China.,National Health Committee Key Laboratory of Hypertension Clinical Research, Xinjiang, China.,Key Laboratory of Xinjiang Uygur Autonomous Region "Hypertension Research Laboratory, Xinjiang, China.,Xinjiang Clinical Medical Research Center for Hypertension (Cardio-Cerebrovascular) Diseases, Xinjiang, China
| | - Zhikang Yang
- Hypertension Center of People's Hospital of Xinjiang Uygur Autonomous Region, Xinjiang Hypertension Institute National Health Committee Key Laboratory of Hypertension Clinical Research, No. 91, Tianchi Road Urumqi, Xinjiang, 830001, China.,Xinjiang Hypertension Institute, Xinjiang, China.,National Health Committee Key Laboratory of Hypertension Clinical Research, Xinjiang, China.,Key Laboratory of Xinjiang Uygur Autonomous Region "Hypertension Research Laboratory, Xinjiang, China.,Xinjiang Clinical Medical Research Center for Hypertension (Cardio-Cerebrovascular) Diseases, Xinjiang, China
| | - Mengyue Lin
- Hypertension Center of People's Hospital of Xinjiang Uygur Autonomous Region, Xinjiang Hypertension Institute National Health Committee Key Laboratory of Hypertension Clinical Research, No. 91, Tianchi Road Urumqi, Xinjiang, 830001, China.,Xinjiang Hypertension Institute, Xinjiang, China.,National Health Committee Key Laboratory of Hypertension Clinical Research, Xinjiang, China.,Key Laboratory of Xinjiang Uygur Autonomous Region "Hypertension Research Laboratory, Xinjiang, China.,Xinjiang Clinical Medical Research Center for Hypertension (Cardio-Cerebrovascular) Diseases, Xinjiang, China
| | - Reyila Abudereyimu
- Hypertension Center of People's Hospital of Xinjiang Uygur Autonomous Region, Xinjiang Hypertension Institute National Health Committee Key Laboratory of Hypertension Clinical Research, No. 91, Tianchi Road Urumqi, Xinjiang, 830001, China.,Xinjiang Hypertension Institute, Xinjiang, China.,National Health Committee Key Laboratory of Hypertension Clinical Research, Xinjiang, China.,Key Laboratory of Xinjiang Uygur Autonomous Region "Hypertension Research Laboratory, Xinjiang, China.,Xinjiang Clinical Medical Research Center for Hypertension (Cardio-Cerebrovascular) Diseases, Xinjiang, China
| | - Jing Hong
- Hypertension Center of People's Hospital of Xinjiang Uygur Autonomous Region, Xinjiang Hypertension Institute National Health Committee Key Laboratory of Hypertension Clinical Research, No. 91, Tianchi Road Urumqi, Xinjiang, 830001, China.,Xinjiang Hypertension Institute, Xinjiang, China.,National Health Committee Key Laboratory of Hypertension Clinical Research, Xinjiang, China.,Key Laboratory of Xinjiang Uygur Autonomous Region "Hypertension Research Laboratory, Xinjiang, China.,Xinjiang Clinical Medical Research Center for Hypertension (Cardio-Cerebrovascular) Diseases, Xinjiang, China
| | - Wenbo Yang
- Hypertension Center of People's Hospital of Xinjiang Uygur Autonomous Region, Xinjiang Hypertension Institute National Health Committee Key Laboratory of Hypertension Clinical Research, No. 91, Tianchi Road Urumqi, Xinjiang, 830001, China.,Xinjiang Hypertension Institute, Xinjiang, China.,National Health Committee Key Laboratory of Hypertension Clinical Research, Xinjiang, China.,Key Laboratory of Xinjiang Uygur Autonomous Region "Hypertension Research Laboratory, Xinjiang, China.,Xinjiang Clinical Medical Research Center for Hypertension (Cardio-Cerebrovascular) Diseases, Xinjiang, China
| | - Ling Yao
- Hypertension Center of People's Hospital of Xinjiang Uygur Autonomous Region, Xinjiang Hypertension Institute National Health Committee Key Laboratory of Hypertension Clinical Research, No. 91, Tianchi Road Urumqi, Xinjiang, 830001, China.,Xinjiang Hypertension Institute, Xinjiang, China.,National Health Committee Key Laboratory of Hypertension Clinical Research, Xinjiang, China.,Key Laboratory of Xinjiang Uygur Autonomous Region "Hypertension Research Laboratory, Xinjiang, China.,Xinjiang Clinical Medical Research Center for Hypertension (Cardio-Cerebrovascular) Diseases, Xinjiang, China
| | - Shasha Liu
- Hypertension Center of People's Hospital of Xinjiang Uygur Autonomous Region, Xinjiang Hypertension Institute National Health Committee Key Laboratory of Hypertension Clinical Research, No. 91, Tianchi Road Urumqi, Xinjiang, 830001, China.,Xinjiang Hypertension Institute, Xinjiang, China.,National Health Committee Key Laboratory of Hypertension Clinical Research, Xinjiang, China.,Key Laboratory of Xinjiang Uygur Autonomous Region "Hypertension Research Laboratory, Xinjiang, China.,Xinjiang Clinical Medical Research Center for Hypertension (Cardio-Cerebrovascular) Diseases, Xinjiang, China
| | - Junli Hu
- Hypertension Center of People's Hospital of Xinjiang Uygur Autonomous Region, Xinjiang Hypertension Institute National Health Committee Key Laboratory of Hypertension Clinical Research, No. 91, Tianchi Road Urumqi, Xinjiang, 830001, China.,Xinjiang Hypertension Institute, Xinjiang, China.,National Health Committee Key Laboratory of Hypertension Clinical Research, Xinjiang, China.,Key Laboratory of Xinjiang Uygur Autonomous Region "Hypertension Research Laboratory, Xinjiang, China.,Xinjiang Clinical Medical Research Center for Hypertension (Cardio-Cerebrovascular) Diseases, Xinjiang, China
| | - Nanfang Li
- Hypertension Center of People's Hospital of Xinjiang Uygur Autonomous Region, Xinjiang Hypertension Institute National Health Committee Key Laboratory of Hypertension Clinical Research, No. 91, Tianchi Road Urumqi, Xinjiang, 830001, China. .,Xinjiang Hypertension Institute, Xinjiang, China. .,National Health Committee Key Laboratory of Hypertension Clinical Research, Xinjiang, China. .,Key Laboratory of Xinjiang Uygur Autonomous Region "Hypertension Research Laboratory, Xinjiang, China. .,Xinjiang Clinical Medical Research Center for Hypertension (Cardio-Cerebrovascular) Diseases, Xinjiang, China.
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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; 18:13321. [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.)
| | - 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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