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Wang F, Zhang X, Wang X, Zhao Y. Enhanced body shape change coupled with PA is the key to hypertension management for urban residents. Public Health Nurs 2024. [PMID: 39051758 DOI: 10.1111/phn.13374] [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: 01/17/2024] [Accepted: 07/10/2024] [Indexed: 07/27/2024]
Abstract
The present study aimed to assess the relationship between body shape, physical activity (PA), and systolic blood pressure (SBP) and diastolic blood pressure (DBP). A novel visualization method was used to examine the effects of body shape combined with physical activity on hypertension. Data from 54,303 participants were obtained from the China Health and Nutrition Survey (CHNS) and analyzed using logistic regression models and standardized regression coefficients of linear models. These models were used to explore factors and effects of body shape indices and other parameters on SBP and DBP. The logistic regression model revealed that compared to transport-related PA, the aggregated variables (weight and waist) were associated with a 2.44-fold and 1.65-fold increase in the risk of hypertension, respectively (p < .05). The average aggregated standardized coefficient of the linear model, based on 1000 bootstrap resamples, indicated that the Base Shape group had the strongest explanatory power for hypertension, followed by the Habits group. However, the explanatory power of the PA group was around 10 and 22 times lower than that of the Base Shape group for DBP and SBP, respectively (p < .05). These results demonstrate that increasing physical activity, with emphasizing a healthy body shape, and adopting positive lifestyle habits can effectively contribute to the prevention and control of hypertension.
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Affiliation(s)
- Fei Wang
- Sports Science Institute, Shanxi University, Taiyuan, Shanxi, China
- School of Physical Education, Shanxi University, Taiyuan, Shanxi, China
| | - Xin Zhang
- School of Physical Education, Shanxi University, Taiyuan, Shanxi, China
| | - Xinyu Wang
- School of Physical Education, Shanxi University, Taiyuan, Shanxi, China
- College of Education, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yixuan Zhao
- School of Physical Education, Shanxi University, Taiyuan, Shanxi, China
- College of Physical Education, Soochow University, Suzhou, China
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Balkin TJ, Simonelli G, Riedy S. Negative health outcomes in long sleepers: The societal sleep restriction hypothesis. Sleep Med Rev 2024; 77:101968. [PMID: 38936221 DOI: 10.1016/j.smrv.2024.101968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 05/15/2024] [Accepted: 06/04/2024] [Indexed: 06/29/2024]
Abstract
Society imposes work and school schedules, as well as social expectations, that militate against consistently obtaining more than 7-9 h of sleep every 24 h. For most but not all adults this sleep duration is adequate. But among those who consistently obtain more than 9 h of sleep per day ("long sleepers"), there likely exists a subpopulation of individuals who are nevertheless failing to obtain enough sleep to satisfy their physiological sleep needs - a consequence of "restricting" their daily sleep durations to whatever extent they can tolerate so as to conform as closely as possible to society's norms and expectations. It is hypothesized that the 'long sleep arm' of the seemingly paradoxical U-shaped relationship between sleep duration and negative health outcomes can be explained, at least in part, by the existence of a subpopulation of such 'sleep-restricted long sleepers.'
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Affiliation(s)
- Thomas J Balkin
- Behavioral Biology Branch, Walter Reed Army Institute of Research, Silver Spring, MD, USA.
| | - Guido Simonelli
- Department of Medicine, Faculty of Medicine, Université de Montréal, Montreal, QC, Canada; Department of Neuroscience, Faculty of Medicine, Université de Montréal, Montreal, QC, Canada; Center for Advanced Research in Sleep Medicine, Centre Integre Universitaire de Sante et de Services Sociaux Du Nord-de-l'île-de-Montreal, Montreal, QC, Canada
| | - Samantha Riedy
- Behavioral Biology Branch, Walter Reed Army Institute of Research, Silver Spring, MD, USA
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Pu L, Zhang R, Wang H, Zhao T, Zeng J, Yang H, Han L, Fang J, Sun N. Association between sleep pattern and incidence of hypertension: A prospective cohort study of older adult participants in the Chinese longitudinal healthy longevity survey. Arch Gerontol Geriatr 2024; 119:105314. [PMID: 38176123 DOI: 10.1016/j.archger.2023.105314] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 12/06/2023] [Accepted: 12/12/2023] [Indexed: 01/06/2024]
Abstract
BACKGROUND The relationship between sleep duration or sleep quality and the risk of hypertension has been previously examined. However, little is known regarding the association between sleep duration and quality and the risk of developing hypertension in the older adult Chinese population. METHODS The sleep patterns of 5683 participants without hypertension at baseline from the Chinese Longitudinal Healthy Longevity Survey were analyzed. Cox proportional hazard models were used to study the associations between sleep patterns and hypertension. RESULTS It was found that 1712 (30.12%) of the 5683 participants had an unhealthy sleep pattern. After an average follow-up of 3.31 years, 1350 of the participants had hypertension. Compared with participants with an unhealthy sleep pattern, those with a healthy sleep pattern had a 20% (hazard ratio = 0.80, 95% confidence interval = 0.67-0.94, P = = 0.008) lower risk of incident hypertension in the fully adjusted models. In addition, an approximately linear dose-response association was observed between sleep duration and the incidence of hypertension (P for non-linear =0.43). Subgroup analyses demonstrated significant interactions between age and sleep pattern concerning hypertension (P for interaction <0.05). Several sensitivity analyses were conducted, and the obtained findings were similar to the main results. CONCLUSIONS A healthy sleep pattern, comprising an adequate sleep duration and good sleep quality, can help reduce hypertension risk. Thus, a healthy sleep pattern is crucial to decreasing hypertension in older Chinese adults in a rapidly aging society.
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Affiliation(s)
- Liyuan Pu
- Health Examination Center, Ningbo No. 2 Hospital, Ningbo, Zhejiang, China; Center for Cardiovascular and Cerebrovascular Epidemiology and Translational Medicine, Guoke Ningbo Life Science and Health Industry Research Institute, Ningbo, Zhejiang, China
| | - Ruijie Zhang
- Health Examination Center, Ningbo No. 2 Hospital, Ningbo, Zhejiang, China; Center for Cardiovascular and Cerebrovascular Epidemiology and Translational Medicine, Guoke Ningbo Life Science and Health Industry Research Institute, Ningbo, Zhejiang, China
| | - Han Wang
- Health Examination Center, Ningbo No. 2 Hospital, Ningbo, Zhejiang, China; Center for Cardiovascular and Cerebrovascular Epidemiology and Translational Medicine, Guoke Ningbo Life Science and Health Industry Research Institute, Ningbo, Zhejiang, China
| | - Tian Zhao
- Health Examination Center, Ningbo No. 2 Hospital, Ningbo, Zhejiang, China; Center for Cardiovascular and Cerebrovascular Epidemiology and Translational Medicine, Guoke Ningbo Life Science and Health Industry Research Institute, Ningbo, Zhejiang, China
| | - Jingjing Zeng
- Health Examination Center, Ningbo No. 2 Hospital, Ningbo, Zhejiang, China; Center for Cardiovascular and Cerebrovascular Epidemiology and Translational Medicine, Guoke Ningbo Life Science and Health Industry Research Institute, Ningbo, Zhejiang, China
| | - Huiqun Yang
- Health Examination Center, Ningbo No. 2 Hospital, Ningbo, Zhejiang, China; Center for Cardiovascular and Cerebrovascular Epidemiology and Translational Medicine, Guoke Ningbo Life Science and Health Industry Research Institute, Ningbo, Zhejiang, China
| | - Liyuan Han
- Health Examination Center, Ningbo No. 2 Hospital, Ningbo, Zhejiang, China; Center for Cardiovascular and Cerebrovascular Epidemiology and Translational Medicine, Guoke Ningbo Life Science and Health Industry Research Institute, Ningbo, Zhejiang, China
| | - Jianfei Fang
- Health Examination Center, Ningbo No. 2 Hospital, Ningbo, Zhejiang, China.
| | - Ning Sun
- School of Nursing, Ningbo College of Health Sciences, Ningbo, Zhejiang, China.
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Gallagher VT, Reilly SE, Rossetti MA, Mattos M, Manning C. Factors associated with reduced sleep among spouses and caregivers of older adults with varying levels of cognitive decline. Psychogeriatrics 2024; 24:223-232. [PMID: 38098187 DOI: 10.1111/psyg.13064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 11/22/2023] [Accepted: 12/04/2023] [Indexed: 03/04/2024]
Abstract
BACKGROUND Caregivers of persons with cognitive decline (PWCD) are at increased risk of poor sleep quantity and quality. It is unclear whether this is due to factors in the caregiver versus in the PWCD. METHODS This secondary data analysis using Aging, Demographics, and Memory Study data from the Health Retirement Study examined factors contributing to reduced sleep/rest among spouses and caregivers of older adults with varying levels of cognitive decline (cognitively normal (CN), cognitive impairment but not dementia (CIND), or dementia). RESULTS In our preliminary analysis, among N = 218 spouses (not necessarily caregivers) (mean age (SD) = 73.77 (7.30); 70.64% female) of older adults with varying levels of cognitive decline, regression revealed that frequency of sleep complaints was lowest among spouses with CN partners, second highest with CIND partners, and highest with dementia-partners, X2 = 26.810, P = 0.002. PRIMARY AIM among n = 136 caregivers of PWCD (mean age (SD) = 59.27 (13.97); 74.26% female; 22.79% spouses), we analyzed whether caregiver reduced sleep/rest was predicted by PWCD factors (i.e., frequent nighttime waking, dementia severity) and/or caregiver factors (i.e., depression symptoms, caregiver role overload). Regression revealed that caregiver depression symptoms (d = 0.62) and role overload (d = 0.88), but not PWCD factors, were associated with reduced caregiver sleep/rest after adjusting for demographic factors, caregiving frequency, and shared-dwelling status (overall model: X2 = 31.876, P = 0.002). Exploratory analyses revealed that a caregiver was 7.901 times more likely (95% CI: 0.99-63.15) to endorse experiencing reduced sleep/rest if back-up care was not available (P = 0.023). CONCLUSION Findings highlight that the frequency of reported sleep problems among spouses increases in a stepwise fashion when partners have dementia versus CIND versus CN. The results also emphasise that caregiver mental health and burden are strongly associated with caregiver sleep disturbances and thus may be targets of intervention for caregiver sleep problems.
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Affiliation(s)
- Virginia T Gallagher
- Department of Neurology, School of Medicine University of Virginia, Charlottesville, Virginia, USA
| | - Shannon E Reilly
- Department of Neurology, School of Medicine University of Virginia, Charlottesville, Virginia, USA
| | - M Agustina Rossetti
- Department of Neurology, School of Medicine University of Virginia, Charlottesville, Virginia, USA
| | - Meghan Mattos
- Division of Geriatrics, School of Nursing and School of Medicine, University of Virginia, Charlottesville, Virginia, USA
| | - Carol Manning
- Department of Neurology, School of Medicine University of Virginia, Charlottesville, Virginia, USA
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Henson J, Covenant A, Hall AP, Herring L, Rowlands AV, Yates T, Davies MJ. Waking Up to the Importance of Sleep in Type 2 Diabetes Management: A Narrative Review. Diabetes Care 2024; 47:331-343. [PMID: 38394635 DOI: 10.2337/dci23-0037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 09/27/2023] [Indexed: 02/25/2024]
Abstract
For the first time, the latest American Diabetes Association/European Association for the Study of Diabetes (ADA/EASD) consensus guidelines have incorporated a growing body of evidence linking health outcomes associated with type 2 diabetes to the movement behavior composition over the whole 24-h day. Of particular note, the importance of sleep as a key lifestyle component in the management of type 2 diabetes is promulgated and presented using three key constructs: quantity, quality, and timing (i.e., chronotype). In this narrative review we highlight some of the key evidence justifying the inclusion of sleep in the latest consensus guidelines by examining the associations of quantity, quality, and timing of sleep with measures of glycemia, cardiovascular disease risk, and mortality. We also consider potential mechanisms implicated in the association between sleep and type 2 diabetes and provide practical advice for health care professionals about initiating conversations pertaining to sleep in clinical care. In particular, we emphasize the importance of measuring sleep in a free-living environment and provide a summary of the different methodologies and targets. In summary, although the latest ADA/EASD consensus report highlights sleep as a central component in the management of type 2 diabetes, placing it, for the first time, on a level playing field with other lifestyle behaviors (e.g., physical activity and diet), the evidence base for improving sleep (beyond sleep disorders) in those living with type 2 diabetes is limited. This review should act as a timely reminder to incorporate sleep into clinical consultations, ongoing diabetes education, and future interventions.
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Affiliation(s)
- Joseph Henson
- NIHR Leicester Biomedical Research Centre, Diabetes Research Centre, College of Life Sciences, University of Leicester, U.K
| | - Alix Covenant
- NIHR Leicester Biomedical Research Centre, Diabetes Research Centre, College of Life Sciences, University of Leicester, U.K
| | - Andrew P Hall
- University Hospitals of Leicester NHS Trust, Leicester, U.K
- Hanning Sleep Laboratory, Leicester General Hospital, Leicester, U.K
| | - Louisa Herring
- NIHR Leicester Biomedical Research Centre, Diabetes Research Centre, College of Life Sciences, University of Leicester, U.K
- University Hospitals of Leicester NHS Trust, Leicester, U.K
| | - Alex V Rowlands
- NIHR Leicester Biomedical Research Centre, Diabetes Research Centre, College of Life Sciences, University of Leicester, U.K
- Alliance for Research in Exercise, Nutrition and Activity (ARENA), UniSA Allied Health and Human Performance, University of South Australia, Adelaide, Australia
| | - Thomas Yates
- NIHR Leicester Biomedical Research Centre, Diabetes Research Centre, College of Life Sciences, University of Leicester, U.K
| | - Melanie J Davies
- NIHR Leicester Biomedical Research Centre, Diabetes Research Centre, College of Life Sciences, University of Leicester, U.K
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Korman M, Zarina D, Tkachev V, Merikanto I, Bjorvatn B, Bjelajac AK, Penzel T, Landtblom AM, Benedict C, Chan NY, Wing YK, Dauvilliers Y, Morin CM, Matsui K, Nadorff M, Bolstad CJ, Chung F, Mota-Rolim S, De Gennaro L, Plazzi G, Yordanova J, Holzinger B, Partinen M, Reis C. Estimation bias and agreement limits between two common self-report methods of habitual sleep duration in epidemiological surveys. Sci Rep 2024; 14:3420. [PMID: 38341476 PMCID: PMC10858912 DOI: 10.1038/s41598-024-53174-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Accepted: 01/29/2024] [Indexed: 02/12/2024] Open
Abstract
Accurate measurement of habitual sleep duration (HSD) is crucial for understanding the relationship between sleep and health. This study aimed to assess the bias and agreement limits between two commonly used short HSD self-report methods, considering sleep quality (SQ) and social jetlag (SJL) as potential predictors of bias. Data from 10,268 participants in the International COVID Sleep Study-II (ICOSS-II) were used. Method-Self and Method-MCTQ were compared. Method-Self involved a single question about average nightly sleep duration (HSDself), while Method-MCTQ estimated HSD from reported sleep times on workdays (HSDMCTQwork) and free days (HSDMCTQfree). Sleep quality was evaluated using a Likert scale and the Insomnia Severity Index (ISI) to explore its influence on estimation bias. HSDself was on average 42.41 ± 67.42 min lower than HSDMCTQweek, with an agreement range within ± 133 min. The bias and agreement range between methods increased with poorer SQ. HSDMCTQwork showed less bias and better agreement with HSDself compared to HSDMCTQfree. Sleep duration irregularity was - 43.35 ± 78.26 min on average. Subjective sleep quality predicted a significant proportion of variance in HSDself and estimation bias. The two methods showed very poor agreement and a significant systematic bias, both worsening with poorer SQ. Method-MCTQ considered sleep intervals without adjusting for SQ issues such as wakefulness after sleep onset but accounted for sleep irregularity and sleeping in on free days, while Method-Self reflected respondents' interpretation of their sleep, focusing on their sleep on workdays. Including an SQ-related question in surveys may help bidirectionally adjust the possible bias and enhance the accuracy of sleep-health studies.
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Affiliation(s)
- Maria Korman
- Department of Occupational Therapy, Faculty of Health Sciences, Ariel University, Ariel, Israel.
| | - Daria Zarina
- Department of Occupational Therapy, Faculty of Health Sciences, Ariel University, Ariel, Israel
| | - Vadim Tkachev
- Department of Occupational Therapy, Faculty of Health Sciences, Ariel University, Ariel, Israel
| | - Ilona Merikanto
- SleepWell Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Orton Orthopaedics Hospital, Helsinki, Finland
| | - Bjørn Bjorvatn
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
- Norwegian Competence Center for Sleep Disorders, Haukeland University Hospital, Bergen, Norway
| | | | - Thomas Penzel
- Sleep Medicine Center, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Anne-Marie Landtblom
- Department of Medical Sciences, Neurology, Uppsala University, Uppsala, Sweden
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | | | - Ngan Yin Chan
- Li Chiu Kong Family Sleep Assessment Unit, Department of Psychiatry, The Chinese University of Hong Kong, Sha Tin, Hong Kong SAR, China
| | - Yun Kwok Wing
- Li Chiu Kong Family Sleep Assessment Unit, Department of Psychiatry, The Chinese University of Hong Kong, Sha Tin, Hong Kong SAR, China
| | - Yves Dauvilliers
- Sleep-Wake Disorders Unit, Department of Neurology, Gui-de-Chauliac Hospital, CHU Montpellier, INSERM Institute of Neurosciences of Montpellier, University of Montpellier, Montpellier, France
| | - Charles M Morin
- Centre de Recherche CERVO/Brain Research Center, École de Psychologie, Université Laval, Quebec, QC, Canada
| | - Kentaro Matsui
- Department of Clinical Laboratory, National Center Hospital, National Center of Neurology and Psychiatry, Kodaia, Japan
| | - Michael Nadorff
- Department of Psychology, Mississippi State University, Starkville, MS, USA
| | - Courtney J Bolstad
- Department of Psychology, Mississippi State University, Starkville, MS, USA
- South Texas Veterans Health Care System, San Antonio, TX, USA
| | - Frances Chung
- Department of Anesthesia and Pain Management, Toronto Western Hospital, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Sérgio Mota-Rolim
- Brain Institute, Physiology and Behavior Department and Onofre Lopes University Hospital, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Luigi De Gennaro
- Department of Psychology, Sapienza University of Rome, Roma, Lazio, Italy
- IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Giuseppe Plazzi
- Irccs Istituto Delle Scienze Neurologiche di Bologna, Bologna, Italy
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio-Emilia, Modena, Italy
| | - Juliana Yordanova
- Institute of Neurobiology, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Brigitte Holzinger
- Institute for Consciousness and Dream Research, Medical University of Vienna, Vienna, Austria
| | - Markku Partinen
- Department of Clinical Neurosciences, University of Helsinki Clinicum Unit, Helsinki, Finland
- Helsinki Sleep Clinic, Terveystalo Healthcare Services, Helsinki, Finland
| | - Cátia Reis
- Católica Research Centre for Psychological - Family and Social Welbeing, Universidade Católica Portuguesa, Lisbon, Portugal.
- Instituto de Medicina Molecular João Lobo Antunes, Universidade de Lisboa, Lisbon, Portugal.
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Callovini LC, Rojo-Wissar DM, Mayer C, Glickenstein DA, Karamchandani AJ, Lin KK, Thomson CA, Quan SF, Silva GE, Haynes PL. Effects of sleep on breakfast behaviors in recently unemployed adults. Sleep Health 2024; 10:114-121. [PMID: 37973452 PMCID: PMC10922088 DOI: 10.1016/j.sleh.2023.09.001] [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: 03/07/2023] [Revised: 08/16/2023] [Accepted: 09/04/2023] [Indexed: 11/19/2023]
Abstract
OBJECTIVES Skipping meals is linked to negative cardiometabolic health outcomes. Few studies have examined the effects of breakfast skipping after disruptive life events, like job loss. The present analyses examine whether sleep timing, duration, and continuity are associated with breakfast eating among 186 adults who recently (past 90 days) experienced involuntary unemployment from the Assessing Daily Activity Patterns Through Occupational Transitions (ADAPT) study. METHODS We conducted both cross-sectional and 18-month longitudinal analyses to assess the relationship between actigraphic sleep after job loss and breakfast eating. RESULTS Later sleep timing was associated with a lower percentage of days breakfast was eaten at baseline (B = -0.09, SE = 0.02, P < .001) and longitudinally over 18 months (estimate = -0.04; SE = 0.02; P < .05). No other sleep indices were associated with breakfast consumption cross-sectionally or prospectively. CONCLUSIONS Unemployed adults with a delay in sleep timing are more likely to skip breakfast than adults with an advancement in sleep timing. Future studies are necessary to test chronobiological mechanisms by which sleep timing might impact breakfast eating. With the understanding that sleep timing is linked to breakfast eating, the advancement of sleep timing may provide a pathway for the promotion of breakfast eating, ultimately preventing cardiometabolic disease.
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Affiliation(s)
- Leah C Callovini
- Department of Health Promotion Sciences, Mel & Enid Zuckerman College of Public Health University of Arizona, Tucson, Arizona, USA.
| | - Darlynn M Rojo-Wissar
- Department of Health Promotion Sciences, Mel & Enid Zuckerman College of Public Health University of Arizona, Tucson, Arizona, USA; The Initiative on Stress, Trauma, and Resilience (STAR), Department of Psychiatry and Human Behavior, Center for Behavioral and Preventive Medicine, The Miriam Hospital, Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA; Bradley/Hasbro Children's Research Center, E.P. Bradley Hospital, Providence, Rhode Island, USA; E.P. Bradley Hospital Sleep Research Laboratory, Providence, Rhode Island, USA
| | - Candace Mayer
- Department of Health Promotion Sciences, Mel & Enid Zuckerman College of Public Health University of Arizona, Tucson, Arizona, USA
| | | | | | - Kevin K Lin
- Department of Mathematics, University of Arizona, Tucson, Arizona, USA
| | - Cynthia A Thomson
- Department of Health Promotion Sciences, Mel & Enid Zuckerman College of Public Health University of Arizona, Tucson, Arizona, USA
| | - Stuart F Quan
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | | | - Patricia L Haynes
- Department of Health Promotion Sciences, Mel & Enid Zuckerman College of Public Health University of Arizona, Tucson, Arizona, USA
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Cheung DST, Yu BYM, Lam SC, Leung DYP, Chung KF, Ho FYY, Chen SC, Yeung WF. A longitudinal study on the change in sleep across three waves of the COVID-19 outbreaks in Hong Kong. Sleep Biol Rhythms 2024; 22:93-102. [PMID: 38476851 PMCID: PMC10899949 DOI: 10.1007/s41105-023-00486-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 08/19/2023] [Indexed: 03/14/2024]
Abstract
In the year 2020, Hong Kong experienced four COVID-19 epidemic waves. The present study aimed to examine the transition of sleep disturbances and explore its associated factors across the later three epidemic waves. Among the 1138 respondents who participated in an online survey at the second wave (T1, April 2020), 338 and 378 participants also completed a follow-up at the third (T2, August 2020) and fourth waves (T3, December 2020), respectively. Participants completed the Insomnia Severity Index and an investigator-designed questionnaire regarding potential factors associated with sleep change such as perceived risk of being infected, economic stress, and confidence in the government and health care professional. Sample of this study were mainly female (67.7%), married (50.3%), young adults (54.2%) with tertiary education (81.6%). Maintaining normal sleep was the most prevalent trajectory of sleep of all three waves (50.5%), followed by persistent insomnia (17.2%) and remitted insomnia (9.0%). Besides female, older-age and lower education level, the results showed that increment in worry about family being infected (adjusted risk ratio, RR = 1.28), perceived interference of daily lives (adjusted RR = 1.19), and economic distress (adjusted RR = 1.24) were significantly associated with the development of clinical insomnia during the three epidemic waves. These factors were also associated with worsening of other sleep parameters. Insomnia being persistent across the three waves of COVID-19 outbreaks was common. Increasing economic distress, daily interference, and worry about family members being infected were associated with an increasing risk of clinical insomnia across the three COVID-19 outbreaks. Supplementary Information The online version contains supplementary material available at 10.1007/s41105-023-00486-w.
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Affiliation(s)
- Denise Shuk Ting Cheung
- School of Nursing, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 11 Yuk Choi Road, Hung Hom, Kowloon, Hong Kong, China
| | - Branda Yee-Man Yu
- Department of Psychology, The University of Hong Kong, Hong Kong SAR, China
| | - Simon Ching Lam
- School of Nursing, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | | | - Ka-Fai Chung
- Department of Psychiatry, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Fiona Yan-Yee Ho
- Department of Psychology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Shu-Cheng Chen
- School of Nursing, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Wing-Fai Yeung
- School of Nursing, The Hong Kong Polytechnic University, Hong Kong SAR, China
- Research Institute for Smart Ageing, The Hong Kong Polytechic University, Hong Kong, Hong Kong SAR
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9
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Zhang L, Muscat JE, Kris-Etherton PM, Chinchilli VM, Fernandez-Mendoza J, Al-Shaar L, Richie JP. Berry Consumption and Sleep in the Adult US General Population: Results from the National Health and Nutrition Examination Survey 2005-2018. Nutrients 2023; 15:5115. [PMID: 38140374 PMCID: PMC10745662 DOI: 10.3390/nu15245115] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/11/2023] [Accepted: 12/12/2023] [Indexed: 12/24/2023] Open
Abstract
INTRODUCTION Poor sleep is associated with numerous adverse health outcomes. Berries are rich in micronutrients and antioxidants that may improve sleep quality and duration. We determined the association of berry consumption and sleep duration and sleep difficulty among adult participants in NHANES. METHODS We analyzed the diet of US adults aged ≥ 20 y using two non-consecutive 24 h recalls from the National Health and Nutrition Examination Survey 2005 to 2018 (N = 29,217). Poor sleep quality was measured by sleep duration (short sleep duration: <7 h), long sleep (≥9 h), and reported sleep difficulty. The relative risk of poor sleep outcomes for berry consumers vs. nonconsumers was modelled using population weight-adjusted multivariable general logistic regression. RESULTS About 46% of participants reported inadequate sleep duration, and 27% reported sleep difficulties. Twenty-two percent reported consuming berries. Berry consumers had a 10-17% decreased risk of short sleep. The findings were consistent for specific berry types including strawberries and blueberries (p < 0.05). No significant associations with long sleep were found for total berries and any berry types. A decreased risk of sleep difficulties was found to be linked to blackberry consumption (adjusted OR = 0.63, 95% CI: 0.40-0.97; p = 0.036) but not for other berries. CONCLUSIONS US adult berry consumers had a decreased risk of reporting short sleep compared to nonconsumers. Berries are underconsumed foods in the US adult population, and increased berry consumption may improve sleep quality.
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Affiliation(s)
- Li Zhang
- Department of Public Health Sciences, Penn State Cancer Institute, Penn State College of Medicine, Pennsylvania State University, Hershey, PA 17033, USA;
| | - Joshua E. Muscat
- Department of Public Health Sciences, Penn State Cancer Institute, Penn State College of Medicine, Pennsylvania State University, Hershey, PA 17033, USA;
| | - Penny M. Kris-Etherton
- Department of Nutritional Sciences, Pennsylvania State University, University Park, PA 16802, USA;
| | - Vernon M. Chinchilli
- Department of Public Health Sciences, Penn State College of Medicine, Pennsylvania State University, Hershey, PA 17033, USA; (V.M.C.)
| | - Julio Fernandez-Mendoza
- Sleep Research & Treatment Center, Department of Psychiatry & Behavioral Health, Penn State Health Milton S. Hershey Medical Center, Penn State University College of Medicine, Hershey, PA 17033, USA;
| | - Laila Al-Shaar
- Department of Public Health Sciences, Penn State College of Medicine, Pennsylvania State University, Hershey, PA 17033, USA; (V.M.C.)
| | - John P. Richie
- Department of Public Health Sciences, Penn State Cancer Institute, Penn State College of Medicine, Pennsylvania State University, Hershey, PA 17033, USA;
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McAdams RM. Fatigue and fallibility: the perils of prolonged shifts for neonatologists. J Perinatol 2023; 43:1530-1534. [PMID: 37422587 DOI: 10.1038/s41372-023-01718-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 06/16/2023] [Accepted: 06/29/2023] [Indexed: 07/10/2023]
Abstract
Sleep deprivation is a major challenge for neonatologists, who face increasing demands in the complex healthcare system. Current neonatal intensive care unit (NICU) schedule models often include extended shifts and overnight call, which can lead to sleep deprivation. This lack of sufficient sleep poses adverse health risks to neonatologists and can impair cognitive function, which increases the risk of medical errors and compromises patient safety. This paper proposes reducing shift durations and implementing policies and interventions to reduce fatigue among neonatologists and improve patient safety. The paper also offers policymakers, healthcare leaders, and NICU physicians valuable insights on potential ways to promote the health of the neonatologist workforce and safety in the NICU.
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Affiliation(s)
- Ryan M McAdams
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.
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11
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Tai BWS, Dawood T, Macefield VG, Yiallourou SR. The association between sleep duration and muscle sympathetic nerve activity. Clin Auton Res 2023; 33:647-657. [PMID: 37543558 PMCID: PMC10751264 DOI: 10.1007/s10286-023-00965-7] [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: 04/20/2023] [Accepted: 07/07/2023] [Indexed: 08/07/2023]
Abstract
PURPOSE Sleep duration is associated with risk of hypertension and cardiovascular diseases. It is thought that shorter sleep increases sympathetic activity. However, most studies are based on acute experimental sleep deprivation that have produced conflicting results. Furthermore, there are limited data available on habitual sleep duration and gold-standard measures of sympathetic activation. Hence, this study aimed to assess the association between habitual sleep duration and muscle sympathetic nerve activity. METHODS Twenty-four participants aged ≥ 18 years were included in the study. Sleep was assessed using at-home 7-day/night actigraphy (ActiGraph™ GT3X-BT) and sleep questionnaires (Pittsburgh Sleep Quality Index and Epworth Sleepiness Scale). Microelectrode recordings of muscle sympathetic nerve activity were obtained from the common peroneal nerve. Participants were categorised into shorter or longer sleep duration groups using a median split of self-report and actigraphy sleep measures. RESULTS Compared to longer sleepers, shorter sleepers averaged 99 ± 40 min and 82 ± 40 min less sleep per night as assessed by self-report and objective measures, respectively. There were no differences in age (38 ± 18 vs 39 ± 21 years), sex (5 male, 7 female vs 6 male, 6 female), or body mass index (23 ± 3 vs 22 ± 3 kg/m2) between shorter and longer sleepers. Expressed as burst frequency, muscle sympathetic nerve activity was higher in shorter versus longer sleepers for both self-report (39.4 ± 12.9 vs 28.4 ± 8.5 bursts/min, p = 0.019) and objective (37.9 ± 12.4 vs 28.1 ± 8.8 bursts/min, p = 0.036) sleep duration. CONCLUSIONS Shorter sleep duration assessed in a home setting was associated with higher muscle sympathetic nerve activity. Sympathetic overactivity may underlie the association between short sleep and hypertension.
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Affiliation(s)
- Bryan W S Tai
- Human Autonomic Neurophysiology Lab, Baker Heart and Diabetes Institute, Melbourne, Australia
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, Australia
| | - Tye Dawood
- Human Autonomic Neurophysiology Lab, Baker Heart and Diabetes Institute, Melbourne, Australia
| | - Vaughan G Macefield
- Human Autonomic Neurophysiology Lab, Baker Heart and Diabetes Institute, Melbourne, Australia
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, Australia
| | - Stephanie R Yiallourou
- Human Autonomic Neurophysiology Lab, Baker Heart and Diabetes Institute, Melbourne, Australia.
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, Australia.
- Turner Institute for Brain and Mental Health, Monash University, Melbourne, Australia.
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12
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Cui H, Xu R, Wan Y, Ling Y, Jiang Y, Wu Y, Guan Y, Zhao Q, Zhao G, Zaid M. Relationship of sleep duration with incident cardiovascular outcomes: a prospective study of 33,883 adults in a general population. BMC Public Health 2023; 23:124. [PMID: 36653782 PMCID: PMC9847128 DOI: 10.1186/s12889-023-15042-x] [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: 11/02/2022] [Accepted: 01/12/2023] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Studies on the effect of sleep duration on cardiovascular health have contradictory findings. Underlying health issues may have led to inconsistent results and warrant consideration. We aim to assess the relationship of night sleep duration with incident cardiovascular disease (CVD) in a general population, taking into consideration underlying chronic diseases. METHODS Data from Shanghai Suburban Adult Cohort and Biobank with a median follow-up of 5.1 years was used, including 33,883 adults aged 20-74 years old. Incident CVD cases were reported and recorded by the Center for Disease Prevention and Control in Songjiang, Shanghai. We used Cox proportional hazard regression models and restricted cubic spline (RCS) analysis to explore the relationship between different sleep groups and sleep duration with incident CVD outcomes, through stratification by gender and age, as well as different health conditions, with adjustments for potential confounders. RESULTS Long sleep duration (> 9 h) compared to > 7 to ≤ 8 h was associated with overall incident CVD in participants aged ≥ 50 years old: HR(95%CI) = 2.07 (1.15, 3.74) for 50-59y and 1.43 (1.04, 1.93) for 60-74y. RCS analysis showed a J-shaped relationship between sleep and CVD risk in those ≥ 50y, which was confirmed only in those with a chronic health condition. Non-linear relationships between sleep and CVD risk factors, such as BMI, blood glucose and glycated haemoglobin, were observed. CONCLUSIONS Long sleep duration is associated with increased risk of CVD in people ≥ 50y. However, CVD risk factors and underlying health conditions such as hypertension, and diabetes, may play a driving role in the relationship.
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Affiliation(s)
- Hui Cui
- grid.8547.e0000 0001 0125 2443Department of Epidemiology, School of Public Health, Fudan University, Shanghai, 200032 China
| | - Rong Xu
- grid.8547.e0000 0001 0125 2443Department of Epidemiology, School of Public Health, Fudan University, Shanghai, 200032 China
| | - Yiming Wan
- grid.8547.e0000 0001 0125 2443Department of Epidemiology, School of Public Health, Fudan University, Shanghai, 200032 China
| | - Yong Ling
- grid.8547.e0000 0001 0125 2443Department of Epidemiology, School of Public Health, Fudan University, Shanghai, 200032 China
| | - Yonggen Jiang
- Songjiang District Center for Disease Control and Prevention, Shanghai, 200032 China
| | - Yiling Wu
- Songjiang District Center for Disease Control and Prevention, Shanghai, 200032 China
| | - Ying Guan
- Songjiang District Center for Disease Control and Prevention, Shanghai, 200032 China
| | - Qi Zhao
- grid.8547.e0000 0001 0125 2443Department of Social Medicine, School of Public Health, Fudan University, Shanghai, 200032 China
| | - Genming Zhao
- grid.8547.e0000 0001 0125 2443Department of Epidemiology, School of Public Health, Fudan University, Shanghai, 200032 China
| | - Maryam Zaid
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, 200032, China.
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13
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Fang Y, He Y, Huang Y, Ran L, Song W, Hao J, Yao D, Li R, Pan D, Qin T, Wang M. Sleep duration, daytime napping, and risk of incident stroke: Nuances by metabolic syndrome from the China health and retirement longitudinal study. Front Cardiovasc Med 2022; 9:976537. [PMID: 36119748 PMCID: PMC9478414 DOI: 10.3389/fcvm.2022.976537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 08/12/2022] [Indexed: 11/13/2022] Open
Abstract
Background and purposeThe relationship between sleep duration and stroke are inconclusive in China, especially in those individuals with metabolic syndrome. We aimed to investigate the association between sleep duration and incident stroke in participants with metabolic syndrome or its specific components in China.Materials and methodsData were taken from the 2011 and 2015 waves of China Health and Retirement Longitudinal Study (CHARLS). Habitual sleep duration (≤6, 6∼8 [reference], >8 h), daytime napping (0, 1∼60 [reference], and >60 min) were determined by self-reported questionnaires. Metabolic syndrome was defined by blood assessment and biomarkers combined with self-reported doctors’ diagnosis. Incident stroke was determined by reported stroke from 2011 to 2015 wave. Cross-sectional and longitudinal associations between sleep and (incident) stroke at baseline and 4-year follow-up period were tested among the population with metabolic syndrome and its components.ResultsA U-shaped relationship was observed between sleep duration and stroke in cross-sectional analysis. Sleep ≤ 6 h/night had a greater risk of incident stroke (hazard ratio [HR] 1.65; 95% confidence interval [CI] 1.04–2.61) compared with sleep 6∼8 h/night. And the HR of stroke was 1.62 (95%CI, 1.03–2.53) for sleep < 7 h/day compared to 7∼9 h/day. These associations were more evident in the female and individuals aged 45–65 years. Furthermore, the effect of short sleep duration on incident stroke was different in each component of metabolic syndrome, which was more pronounced in participants with elevated blood pressure. And a significant joint effect of sleeping ≤ 6 h/night and no napping on risk of stroke was observed (HR 1.82, 95%CI 1.06–3.12).ConclusionShort sleep duration was an independent risk factor for incident stroke, especially among females, individuals aged 45–65 years, or those with some components of metabolic syndrome, such as hypertension. Napping could buffer the risk of short sleep duration on incident stroke.
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Affiliation(s)
- Yuanyuan Fang
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuqin He
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yanzhu Huang
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lusen Ran
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wenhui Song
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiahuan Hao
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Di Yao
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Rong Li
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Dengji Pan
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tingting Qin
- Department of Biliary-Pancreatic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Tingting Qin,
| | - Minghuan Wang
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Minghuan Wang,
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14
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Feingold CL, Smiley A. Healthy Sleep Every Day Keeps the Doctor Away. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:10740. [PMID: 36078455 PMCID: PMC9518120 DOI: 10.3390/ijerph191710740] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/24/2022] [Accepted: 08/25/2022] [Indexed: 06/15/2023]
Abstract
When one considers the big picture of their health, sufficient sleep may often go overlooked as a keystone element in this picture. Insufficient sleep in either quality or duration is a growing problem for our modern society. It is essential to look at what this means for our health because insufficient sleep increases our risks of innumerable lifechanging diseases. Beyond increasing the risk of developing these diseases, it also makes the symptoms and pathogenesis of many diseases worse. Additionally, consistent quality sleep can not only improve our physical health but has also been shown to improve mental health and overall quality of life. Substandard sleep health could be a root cause for numerous issues individuals may be facing in their lives. It is essential that physicians take the time to learn about how to educate their patients on sleep health and try to work with them on an individual level to help motivate lifestyle changes. Facilitating access to sleep education for their patients is one way in which physicians can help provide patients with the tools to improve their sleep health. Throughout this paper, we will review the mechanisms behind the relationship between insufficient sleep health and chronic disease and what the science says about how inadequate sleep health negatively impacts the overall health and the quality of our lives. We will also explain the lifechanging effects of sufficient sleep and how we can help patients get there.
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15
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Lu Y, Wiltshire HD, Baker JS, Wang Q. Effects of Low-Volume High-Intensity Interval Exercise on 24 h Movement Behaviors in Inactive Female University Students. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19127177. [PMID: 35742425 PMCID: PMC9223473 DOI: 10.3390/ijerph19127177] [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: 05/08/2022] [Revised: 06/05/2022] [Accepted: 06/09/2022] [Indexed: 11/23/2022]
Abstract
The purpose of this study was to examine if low-volume, high-intensity interval exercise (HIIE) was associated with changes in 24-h movement behaviors. A quasi-experimental study design was used. We collected accelerometry data from 21 eligible participants who consistently wore an ActiGraph for a period of two-weeks. Differences in behaviors were analyzed using a paired t-test and repeated measures analysis of variance. Regression analysis was used to explore relationships with factors that impacted changes. The results indicated a compensatory increase in sedentary time (ST) (4.4 ± 6.0%, p < 0.01) and a decrease in light-intensity physical activity (LPA) (−7.3 ± 16.7%, p < 0.05). Meanwhile, moderate-intensity physical activity (MPA), vigorous-intensity physical activity (VPA), and total physical activity (TPA) increased following exercise (p < 0.001). Sleep duration and prolonged sedentary time were reduced (p < 0.05). Exercise intensity and aerobic capacity were associated with changes in ST. The results from the study indicate that participating in a low-volume HIIE encouraged participants who were previously inactive to become more active. The observations of increases in ST may have displaced a prolonged sitting time. The decrease in sleeping time observed may be reflecting an increased sleep quality in connection with increased higher-intensity PA.
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Affiliation(s)
- Yining Lu
- Faculty of Sport Science, Ningbo University, Ningbo 315000, China;
- Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff CF5 2YB, UK;
| | - Huw D. Wiltshire
- Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff CF5 2YB, UK;
| | - Julien S. Baker
- Centre for Health and Exercise Science Research, Department of Sport, Physical Education and Health, Hong Kong Baptist University, Kowloon Tong, Hong Kong;
| | - Qiaojun Wang
- Faculty of Sport Science, Ningbo University, Ningbo 315000, China;
- Correspondence: ; Tel.: +86-13805885586
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Associations between genetic loci, environment factors and mental disorders: a genome-wide survival analysis using the UK Biobank data. Transl Psychiatry 2022; 12:17. [PMID: 35017462 PMCID: PMC8752606 DOI: 10.1038/s41398-022-01782-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 12/10/2021] [Accepted: 12/22/2021] [Indexed: 11/08/2022] Open
Abstract
It is well-accepted that both environment and genetic factors contribute to the development of mental disorders (MD). However, few genetic studies used time-to-event data analysis to identify the susceptibility genetic variants associated with MD and explore the role of environment factors in these associations. In order to detect novel genetic loci associated with MD based on the time-to-event data and identify the role of environmental factors in them, this study recruited 376,806 participants from the UK Biobank cohort. The MD outcomes (including overall MD status, anxiety, depression and substance use disorders (SUD)) were defined based on in-patient hospital, self-reported and death registry data collected in the UK Biobank. SPACOX approach was used to identify the susceptibility loci for MD using the time-to-event data of the UK Biobank cohort. And then we estimated the associations between identified candidate loci, fourteen environment factors and MD through a phenome-wide association study and mediation analysis. SPACOX identified multiple candidate loci for overall MD status, depression and SUD, such as rs139813674 (P value = 8.39 × 10-9, ZNF684) for overall MD status, rs7231178 (DCC, P value = 2.11 × 10-9) for depression, and rs10228494 (FOXP2, P value = 6.58 × 10-10) for SUD. Multiple environment factors could influence the associations between identified loci and MD, such as confide in others and felt hated. Our study identified novel candidate loci for MD, highlighting the strength of time-to-event data based genetic association studies. We also observed that multiple environment factors could influence the association between susceptibility loci and MD.
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Reyes S, Rimkus CDM, Lozoff B, Algarin C, Peirano P. Nighttime Sleep Characteristics and White Matter Integrity in Young Adults. Nat Sci Sleep 2022; 14:1363-1373. [PMID: 35965887 PMCID: PMC9364986 DOI: 10.2147/nss.s360311] [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: 01/28/2022] [Accepted: 07/07/2022] [Indexed: 11/23/2022] Open
Abstract
PURPOSE Sleep is essential for life and plays a key role for optimal physiology, brain functioning, and health. Evidence suggests a relation between sleep and cerebral white matter integrity. Human studies report that sleep duration shows a U-shaped association with brain functioning. We hypothesized that participants with longer or shorter sleep time in the nighttime period show altered microstructural white matter integrity. PARTICIPANTS AND METHODS Seventy-three young adult participants were evaluated. Sleep-wake cycle parameters were assessed objectively using actigraphy. Diffusion tensor imaging studies were performed to assess white matter integrity using fractional anisotropy and mean, axial, and radial diffusivities. Relations between white matter microstructure indexes and sleep parameters were investigated through tract-based spatial statistics. Participants were grouped according to their nocturnal total sleep time: 27 in the Reference sleep group (6.5-8.0 h), 23 in the Short sleep group (<6.5 h) and 23 in the Long sleep group (>8.0 h). RESULTS Compared with the Reference sleep group, participants in the Long sleep group showed lower fractional anisotropy (p < 0.05) and higher radial diffusivity (p < 0.05) values in white matter tracts linked to sleep regulation (corona radiata, body of the corpus callosum, superior longitudinal fasciculus, and anterior thalamic radiation). CONCLUSION This pattern of reduced fractional anisotropy and increased radial diffusivity in the Long sleep group indicates an association between sleep duration and lower integrity of myelin sheaths. Because myelin is continuously remodeled in the brain, nighttime sleep characteristics appear to be a key player for its quality and maintenance.
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Affiliation(s)
- Sussanne Reyes
- Laboratory of Sleep and Functional Neurobiology, Institute of Nutrition and Food Technology (INTA), University of Chile, Santiago, Chile
| | - Carolina de Medeiros Rimkus
- Laboratory of Medical Investigation (LIM-44), Department of Radiology and Oncology, Faculty of Medicine, University of Sao Paulo, São Paulo, São Paulo, Brazil
| | - Betsy Lozoff
- Department of Pediatrics and Environmental Health Sciences, University of Michigan, Ann Arbor, MI, USA
| | - Cecilia Algarin
- Laboratory of Sleep and Functional Neurobiology, Institute of Nutrition and Food Technology (INTA), University of Chile, Santiago, Chile
| | - Patricio Peirano
- Laboratory of Sleep and Functional Neurobiology, Institute of Nutrition and Food Technology (INTA), University of Chile, Santiago, Chile
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