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Kuchel GA. AGS/NIA Conference Series on delirium, sleep disorders, and urinary incontinence. J Am Geriatr Soc 2024; 72:1620-1622. [PMID: 38433532 PMCID: PMC11090761 DOI: 10.1111/jgs.18806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 01/06/2024] [Indexed: 03/05/2024]
Affiliation(s)
- George A Kuchel
- UConn Center on Aging, UConn Health, Farmington, Connecticut, USA
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Abadir P, Whitson H. Geriatric research through the lens of AGS/NIA U13: Two decades of interdisciplinary dialogues that have propelled the field. J Am Geriatr Soc 2024; 72:1623-1626. [PMID: 38363144 DOI: 10.1111/jgs.18810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 01/09/2024] [Accepted: 01/14/2024] [Indexed: 02/17/2024]
Affiliation(s)
- Peter Abadir
- Department of Medicine, Division of Geriatrics Medicine and Gerontology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Heather Whitson
- Department of Medicine, Duke University, Durham, North Carolina, USA
- Durham VA GRECC, Durham VA Geriatrics Research, Education, and Clinical Center, Durham, North Carolina, USA
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Hyväri S, Elo S, Kukkohovi S, Lotvonen S. Utilizing activity sensors to identify the behavioural activity patterns of elderly home care clients. Disabil Rehabil Assist Technol 2024; 19:585-594. [PMID: 36067090 DOI: 10.1080/17483107.2022.2110951] [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: 11/29/2021] [Revised: 06/22/2022] [Accepted: 08/03/2022] [Indexed: 10/14/2022]
Abstract
PURPOSE The behavioural activity pattern is a behavioural and biological 24-hour rhythm. Ageing, diseases and memory disorders can change this pattern. Home care staff can utilize knowledge about the behavioural activity pattern of elderly home care clients in many ways. The purpose of this study was to evaluate whether home care staff could identify the behavioural activity pattern of elderly home care clients using activity sensors, namely, actigraphs and motion sensors, could identify the behavioural activity rhythms. MATERIALS AND METHODS A total of four elderly home care clients and one elderly home rehabilitation client took part in the study. The participants wore actigraphs on their wrist and motion sensors were installed in their apartment. In addition to sensor data, home care staff answered one open-ended question during each home care visit. The data collection period was two weeks. Both quantitative and qualitative methods were used in the analysis. RESULTS The behavioural activity pattern was easy to identify from the motion sensor data, whereas actigraph data were difficult to interpret. The home care staff members' answers to open-ended questions reinforced the reliability of motion sensor data. CONCLUSIONS Motion sensors are relatively cheap, unobtrusive and reliable way to identify and detect changes in the behavioural activity patterns of elderly home care clients.Implications for rehabilitationMotion sensors are cheap, user-friendly and highly accepted technology for identifying and monitoring behavioural activity rhythm.Home care staff members can use the data about elderly home care client's behavioural activity rhythm to monitor deviations to the rhythm and detect changes in client's health.The information about behavioural activity rhythm can also be utilized in planning home care visits and interventions.
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Affiliation(s)
- Sauli Hyväri
- Research Unit of Health Sciences and Technology, GeroNursing Centre, University of Oulu, Oulu, Finland
| | - Satu Elo
- Future Health Services, Lapland University of Applied Sciences, Kemi, Finland
| | - Saara Kukkohovi
- Research Unit of Health Sciences and Technology, GeroNursing Centre, University of Oulu, Oulu, Finland
| | - Sinikka Lotvonen
- Research Unit of Health Sciences and Technology, GeroNursing Centre, University of Oulu, Oulu, Finland
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Dichter MN, Dörner J, Wilfling D, Berg A, Klatt T, Möhler R, Haastert B, Meyer G, Halek M, Köpke S. Intervention for sleep problems in nursing home residents with dementia: a cluster-randomized study. Int Psychogeriatr 2024:1-14. [PMID: 38186227 DOI: 10.1017/s1041610223004489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
OBJECTIVE To reduce sleep problems in people living with dementia using a multi-component intervention. DESIGN Cluster-randomized controlled study with two parallel groups and a follow-up of 16 weeks. SETTING Using external concealed randomization, 24 nursing homes (NH) were allocated either to the intervention group (IG, 12 clusters, 126 participants) or the control group (12 clusters, 116 participants). PARTICIPANTS Participants were eligible if they had dementia or severe cognitive impairment, at least two sleep problems, and residence of at least two weeks in a NH. INTERVENTION The 16-week intervention consists of six components: (1) assessment of sleep-promoting activities and environmental factors in NHs, (2) implementation of two "sleep nurses," (3) basic education, (4) advanced education for staff, (5) workshops to develop sleep-promoting concepts, and (6) written information and education materials. The control group (CG) received standard care. MEASUREMENTS Primary outcome was ≥ two sleep problems after 16 weeks assessed with the Sleep Disorders Inventory (SDI). RESULTS Twenty-two clusters (IG = 10, CG = 12) with 191 participants completed the study. At baseline, 90% of people living with dementia in the IG and 93% in the CG had at least two sleep problems. After 16 weeks, rates were 59.3% (IG) vs 83.8% (CG), respectively, a difference of -24.5% (95% CI, -46.3% - -2.7%; cluster-adjusted odds ratio 0.281; 95% CI 0.087-0.909). Secondary outcomes showed a significant difference only for SDI scores after eight and 16 weeks. CONCLUSIONS The MoNoPol-Sleep intervention reduced sleep problems of people living with dementia in NH compared to standard care.
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Affiliation(s)
- Martin Nikolaus Dichter
- Institute of Nursing Science, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Jonas Dörner
- Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Witten, Germany
- School of Nursing Science, Faculty of Health, Witten/Herdecke University, Witten, Germany
| | - Denise Wilfling
- Institute of Social Medicine and Epidemiology, Nursing Research Group, University of Lübeck, Lübeck, Germany
| | - Almuth Berg
- Institute of Health and Nursing Sciences, Martin Luther University Halle-Wittenberg, Medical Faculty, Halle (Saale), Germany
| | - Thomas Klatt
- Institute of Health and Nursing Sciences, Martin Luther University Halle-Wittenberg, Medical Faculty, Halle (Saale), Germany
| | - Ralph Möhler
- Institute for Health Services Research and Health Economics, Centre for Health and Society, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
| | | | - Gabriele Meyer
- Institute of Health and Nursing Sciences, Martin Luther University Halle-Wittenberg, Medical Faculty, Halle (Saale), Germany
| | - Margareta Halek
- School of Nursing Science, Faculty of Health, Witten/Herdecke University, Witten, Germany
| | - Sascha Köpke
- Institute of Nursing Science, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
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Griffiths J, Seesen M, Sirikul W, Siviroj P. Malnutrition, Depression, Poor Sleep Quality, and Difficulty Falling Asleep at Night Are Associated with a Higher Risk of Cognitive Frailty in Older Adults during the COVID-19 Restrictions. Nutrients 2023; 15:2849. [PMID: 37447178 DOI: 10.3390/nu15132849] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 06/18/2023] [Accepted: 06/22/2023] [Indexed: 07/15/2023] Open
Abstract
The COVID-19 restrictions, such as social isolation and disruption of daily routines, can have detrimental effects, including increased stress, anxiety, sleep disturbance, and physical and cognitive decline among older adults. This study aimed to examine the association between nutritional status, depression, sleep quality, falling asleep at night, and cognitive frailty (CF) among older Thai adults during the COVID-19 pandemic. This cross-sectional study included 408 older adults with an average age of 70.54 (5.49) years. CF was determined using Fried's frailty phenotype and the Montreal Cognitive Assessment Basic. The Mini Nutritional Assessment-Short Form, Pittsburgh Sleep Quality Index, and geriatric depression assessment were used for assessment. Multiple logistic regression analysis demonstrated that participants who were malnourished (OR 3.786; 95%CI 1.719-8.335), depressed (OR 5.003; 95%CI 2.399-10.434), had poor sleep quality (OR 1.613; 95%CI 1.041-2.500), and engaged in difficulty falling asleep (OR 1.809; 95%CI 1.022-3.203) had a higher risk of CF compared to those who did not exhibit these factors. Therefore, malnutrition, depression, poor sleep quality, and difficulty falling asleep were identified as risk factors for CF among older adults in Thailand linked to the impact of the COVID-19 pandemic. It is crucial to develop interventions to prevent CF resulting from the mentioned variables.
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Affiliation(s)
- Jiranan Griffiths
- Department of Occupational Therapy, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Mathuramat Seesen
- Department of Community Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Wachiranun Sirikul
- Department of Community Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
- Center of Data Analytics and Knowledge Synthesis for Health Care, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Penprapa Siviroj
- Department of Community Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
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Olatunde K, Patton S. Association Between Insomnia and Healthcare Utilization: A Scoping Review of the Literature. Am J Lifestyle Med 2023. [DOI: 10.1177/15598276231164953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
Abstract
Insomnia is a sleep disorder that affects significant portion of the population. It can result in adverse health outcomes and increased healthcare utilization. The purpose of this review was to identify existing research on the association between insomnia and healthcare utilization. A five-stage scoping review process was conducted guided by the Joanna Briggs Institute process. Data sources searched through 2022 were PubMed, HINARI, Google Scholar and Cochrane, with additional studies identified through hand searching. Descriptive and exploratory analyses were conducted from the findings of the selected studies. After reviewing 124 references, 23 studies were selected. A strong and positive association between insomnia and healthcare utilization and healthcare costs was identified. We also found that insomnia was associated with absenteeism from work, lower work performance ratings, disability, difficulties in daily activities, and life dissatisfaction. An unexpected theme that emerged from the included studies is that there is a large population with persistent insomnia who do not seek help that could benefit from improved management. Findings suggest that identifying and managing insomnia could result in a decrease in healthcare utilization and costs. Further research is needed to determine the most effective methods of identifying and managing insomnia.
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Affiliation(s)
- Kolade Olatunde
- Department of Public Policy/Health Policy, University of Arkansas, Fayetteville, AR, USA
| | - Susan Patton
- Department of Nursing, University of Arkansas, Fayetteville, AR, USA
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7
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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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Irwin MR. Sleep disruption induces activation of inflammation and heightens risk for infectious disease: Role of impairments in thermoregulation and elevated ambient temperature. Temperature (Austin) 2022; 10:198-234. [PMID: 37332305 PMCID: PMC10274531 DOI: 10.1080/23328940.2022.2109932] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 07/25/2022] [Accepted: 07/30/2022] [Indexed: 10/15/2022] Open
Abstract
Thermoregulation and sleep are tightly coordinated, with evidence that impairments in thermoregulation as well as increases in ambient temperature increase the risk of sleep disturbance. As a period of rest and low demand for metabolic resources, sleep functions to support host responses to prior immunological challenges. In addition by priming the innate immune response, sleep prepares the body for injury or infection which might occur the following day. However when sleep is disrupted, this phasic organization between nocturnal sleep and the immune system becomes misaligned, cellular and genomic markers of inflammation are activated, and increases of proinflammatory cytokines shift from the nighttime to the day. Moreover, when sleep disturbance is perpetuated due to thermal factors such as elevated ambient temperature, the beneficial crosstalk between sleep and immune system becomes further imbalanced. Elevations in proinflammatory cytokines have reciprocal effects and induce sleep fragmentation with decreases in sleep efficiency, decreases in deep sleep, and increases in rapid eye movement sleep, further fomenting inflammation and inflammatory disease risk. Under these conditions, sleep disturbance has additional potent effects to decrease adaptive immune response, impair vaccine responses, and increase vulnerability to infectious disease. Behavioral interventions effectively treat insomnia and reverse systemic and cellular inflammation. Further, insomnia treatment redirects the misaligned inflammatory- and adaptive immune transcriptional profiles with the potential to mitigate risk of inflammation-related cardiovascular, neurodegenerative, and mental health diseases, as well as susceptibility to infectious disease.
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Affiliation(s)
- Michael R. Irwin
- University of California, Los Angeles – Cousins Center for Psychoneuroimmunology, Semel Institute for Neuroscience and Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine, Los Angeles, California, USA
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9
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Yoshimura S, Miyano I, Yasuda N. Associations of sleep duration with the incidence of needed support/long-term care certification according to presence or absence of sleep complaints in community-dwelling Japanese older adults. Arch Gerontol Geriatr 2022; 101:104712. [DOI: 10.1016/j.archger.2022.104712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 04/17/2022] [Accepted: 04/28/2022] [Indexed: 11/16/2022]
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Abstract
The timing, duration, and consolidation of sleep result from the interaction of the circadian timing system with a sleep-wake homeostatic process. When aligned and functioning optimally, this allows for wakefulness throughout the day and a long consolidated sleep episode at night. Changes to either the sleep regulatory process or how they interact can result in an inability to fall asleep at the desired time, difficulty remaining asleep, waking too early, and/or difficulty remaining awake throughout the day. This mismatch between the desired timing of sleep and the ability to fall asleep and remain asleep is a hallmark of a class of sleep disorders called the circadian rhythm sleep-wake disorders. In this updated article, we discuss typical changes in the circadian regulation of sleep with aging; how age influences the prevalence, diagnosis, and treatment of circadian rhythm sleep disorders; and how neurologic diseases in older patient impact circadian rhythms and sleep.
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Affiliation(s)
- Jee Hyun Kim
- Department of Neurology, Ewha Womans University Seoul Hospital, Ewha Womans University College of Medicine, Gonghangdae-ro 260, Gangseo-gu, Seoul, Republic of Korea
| | - Alexandria R Elkhadem
- Division of Sleep and Circadian Disorders, Department of Medicine, Brigham and Women's Hospital, 221 Longwood Avenue BLI438, Boston, MA 02115, USA
| | - Jeanne F Duffy
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA.
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Vaughan CP, Markland AD, Huang AJ, Alessi CA, Guzman A, Martin JL, Bliwise DL, Johnson II TM, Burgio KL, Fung CH. Considerations for integrated cognitive behavioural treatment for older adults with coexisting nocturia and insomnia. Age Ageing 2022; 51:6527735. [PMID: 35165690 PMCID: PMC8844541 DOI: 10.1093/ageing/afac024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Indexed: 11/14/2022] Open
Abstract
Nocturia and chronic insomnia disorder are common conditions that frequently coexist in older adults. Existing medication treatments for each condition have risks, particularly in older adults. While treatment guidelines recommend starting with behavioural therapy for each condition, no existing program simultaneously addresses nocturia and insomnia. Existing behavioural interventions for nocturia or insomnia contain concordant and discordant components. An expert panel (including geriatricians with sleep or nocturia research expertise, sleep psychologists and a behavioural psychologist) was convened to combine and reconcile elements of behavioural treatment for each condition. Concordant treatment recommendations involve using situational self-management strategies such as urge suppression or techniques to influence homeostatic drive for sleep. Fluid modification such as avoiding alcohol and evening caffeine and regular self-monitoring through a daily diary is also appropriate for both conditions. The expert panel resolved discordant recommendations by eliminating overnight completion of voiding diaries (which can interfere with sleep) and discouraging routine overnight voiding (a stimulus control strategy). The final product is an integrated cognitive behavioural treatment that is delivered by advanced practice providers weekly over 5 weeks. This integrated program addresses the common scenario of coexisting nocturia and chronic insomnia disorder.
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Affiliation(s)
- Camille P Vaughan
- Address correspondence to: Camille P. Vaughan, 1841 Clifton Road, NE, Room 533, Atlanta, GA 30329, USA. Tel: 404 728 6902.
| | - Alayne D Markland
- Dept of Veterans Affairs Birmingham/Atlanta Geriatric Research, Education, and Clinical Center, Birmingham, AL & Atlanta, GA, USA,Dept of Medicine, Division of Gerontology, Geriatrics, and Palliative Care, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Alison J Huang
- Dept of Medicine, University of California, San Francisco, CA 94115, USA
| | - Cathy A Alessi
- Dept of Medicine, University of California, Los Angeles, CA 90095, USA,Geriatric Research, Education, and Clinical Center; Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, CA 90073, USA
| | - Andrew Guzman
- Dept of Medicine, University of California, Los Angeles, CA 90095, USA,Geriatric Research, Education, and Clinical Center; Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, CA 90073, USA
| | - Jennifer L Martin
- Dept of Medicine, University of California, Los Angeles, CA 90095, USA,Geriatric Research, Education, and Clinical Center; Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, CA 90073, USA
| | - Donald L Bliwise
- Sleep Program, Emory University School of Medicine, Atlanta, GA 30329, USA
| | - Theodore M Johnson II
- Dept of Medicine, Division of Geriatrics & Gerontology, Emory University, Atlanta, GA 30329, USA,Dept of Veterans Affairs Birmingham/Atlanta Geriatric Research, Education, and Clinical Center, Birmingham, AL & Atlanta, GA, USA,Dept of Medicine, Division of General Internal Medicine, Emory University, Atlanta, GA 30329, USA,Dept of Family and Preventive Medicine, Emory University, Atlanta, GA 30329, USA
| | - Kathryn L Burgio
- Dept of Veterans Affairs Birmingham/Atlanta Geriatric Research, Education, and Clinical Center, Birmingham, AL & Atlanta, GA, USA,Dept of Medicine, Division of Gerontology, Geriatrics, and Palliative Care, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Constance H Fung
- Dept of Medicine, University of California, Los Angeles, CA 90095, USA,Geriatric Research, Education, and Clinical Center; Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, CA 90073, USA
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Huang Q, Tian C, Zeng XT. Poor Sleep Quality in Nurses Working or Having Worked Night Shifts: A Cross-Sectional Study. Front Neurosci 2021; 15:638973. [PMID: 34413721 PMCID: PMC8369413 DOI: 10.3389/fnins.2021.638973] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 06/07/2021] [Indexed: 11/23/2022] Open
Abstract
Night shifts are part of clinical care. It is unclear whether poor sleep quality of nurses working both consecutive night shifts and day shifts after quitting night shifts is common. In this cross-sectional study, Pittsburgh Sleep Quality Index (PSQI) was used to assess sleep quality as study outcome. Univariable and multivariable linear and logistic regressions were performed to compare PSQI score and prevalence of poor sleep quality between 512 nurses currently working consecutive night shifts and 174 nurses having worked night shifts in the past. The prevalence of poor sleep quality was 62.11% in nurses working consecutive night shifts and 55.75% in nurses having worked night shifts before. In multivariable regressions with adjustment for potential confounders, compared with nurses working consecutive night shifts, nurses having worked past night shifts reported decreased PSQI score [mean difference: −0.82 (95% CI: −1.27 to −0.38, p < 0.001)] and lower poor sleep quality [odds ratio (OR): 0.49 (95% CI: 0.29 to 0.80, p = 0.005)]. In nurses working consecutive night shifts, a rising curve that plateaued at the end was observed between years of consecutive night shifts and PSQI score, p = 0.004. To explore the change in PSQI score after quitting night shift, we constructed a hypothetical prospective cohort from the cross-sectional data. Here, 98 pairs of nurses with consecutive and past night shifts were matched for the number of night shift years, religion, marital status, living condition, hypertension, and hyperlipidemia. In each pair, a hypothetical change in PSQI score was calculated between the two types of nurses and hypothetical years after quitting night shifts was obtained from the matched nurse with past night shifts. A U-shaped curve between change in PSQI and years after quitting night shifts was observed, p = 0.007. The rising curve and U-shaped curve together formed an S-shaped curve, which mapped the change in sleep quality. These results based on the hypothetical cohort constructed from cross-sectional data suggested the presence of persistent poor sleep quality in night shift nurses. Also, we support early and continuous sleep hygiene education and reflection for an optimal strategy for when to cease working night shifts with regard to sleep-related problems.
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Affiliation(s)
- Qiao Huang
- Center for Evidence-Based and Translational Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.,Department of Evidence-Based Medicine and Clinical Epidemiology, Second School of Clinical Medicine, Wuhan University, Wuhan, China.,School of Nursing, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chong Tian
- School of Nursing, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xian-Tao Zeng
- Center for Evidence-Based and Translational Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.,Department of Evidence-Based Medicine and Clinical Epidemiology, Second School of Clinical Medicine, Wuhan University, Wuhan, China.,Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
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13
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Liu H, Wang M, Xu L, Li M, Zhao M. Neuroprotective effect of miR-204-5p downregulation against isoflurane-induced learning and memory impairment via targeting EphB2 and inhibiting neuroinflammation. Hum Exp Toxicol 2021; 40:1746-1754. [PMID: 33878909 DOI: 10.1177/09603271211009970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Isoflurane, one of the most commonly used inhalational anesthetics, is usually used in surgery patients and often causes long-term learning and memory impairment. The aim of this study was to explore the role of microRNA-204-5p (miR-204-5p) in isoflurane-induced learning and memory impairment in rats. METHODS The Morris Water Maze (MWM) test was used to estimate the spatial learning and memory abilities of laboratory rats. Enzyme-linked immunosorbent assay (ELISA) was used to determine interleukin-6 (IL-6), interleukin-1β (IL-1β), and tumor necrosis factor-α (TNF-α) concentrations in the hippocampal tissues. The expression level of miR-204-5p was determined by using quantitative reverse transcription polymerase chain reaction (qRT-PCR). The potential target genes of miR-204-5p were predicted and verified by the TargetScan and dual-luciferase reporter assay, respectively. RESULTS Isoflurane-induced rats showed significantly higher neurological function scores, higher escape latency and shorter time spent in the original quadrant. Isoflurane could significantly induce neuroinflammation, and the expression of miR-204-5p was increased in the hippocampal tissue of rats exposed to isoflurane. Moreover, downregulation of miR-204-5p attenuated the effect of isoflurane treatment on the escape latency and the time in the original quadrant, and inflammatory cytokines level was downregulated by inhibiting the expression of miR-204-5p. EphB2 was verified as a direct target gene of miR-204-5p. CONCLUSION Downregulated miR-204-5p exerts protective effects against isoflurane-induced learning and memory impairment via targeting EphB2 and inhibiting neuroinflammation. MiR-204-5p could serve as a potential therapeutic target for the lightening of cognitive dysfunction induced by isoflurane.
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Affiliation(s)
- H Liu
- Anesthesiology Department, Jinan Third People's Hospital, Jinan, Shandong, People's Republic of China
| | - M Wang
- Anesthesiology Department, Jinan Third People's Hospital, Jinan, Shandong, People's Republic of China
| | - L Xu
- Anesthesiology Department, Jinan Third People's Hospital, Jinan, Shandong, People's Republic of China
| | - M Li
- Anesthesiology Department, Jinan Third People's Hospital, Jinan, Shandong, People's Republic of China
| | - M Zhao
- Anesthesiology Department, Jinan Third People's Hospital, Jinan, Shandong, People's Republic of China
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Characteristics of multicomponent, nonpharmacological interventions to reduce or avoid sleep disturbances in nursing home residents: a systematic review. Int Psychogeriatr 2021; 33:245-273. [PMID: 32498737 DOI: 10.1017/s1041610220000733] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Dementia guidelines propose the use of nonpharmacological interventions for sleep disturbances for older people. Based on available reviews, it seems most likely that multicomponent interventions have the strongest potential to be effective in improving sleep. However, a detailed description of multicomponent interventions is missing. This systematic review aims to identify, describe, and summarize multicomponent, nonpharmacological interventions to reduce or avoid sleep disturbances in nursing home residents. METHODS This review followed established methodological frameworks for systematic evidence syntheses. A computerized search was conducted in December 2018, using the databases PubMed, CINAHL, Scopus, and Cochrane Library. Two independent reviewers assessed all search results to identify eligible studies and assessed studies' methodological quality following the Cochrane Risk of Bias methodology for randomized controlled trials and the CASP Appraisal Checklist for controlled trials.Evaluation studies of any design investigating multicomponent interventions were included, except case studies. Components of included intervention programs were analyzed applying the TIDieR and CReDECI 2 criteria. RESULTS A total of 2056 studies were identified through the database search; ten publications about nine interventions met the inclusion criteria and were included in the review. The identified interventions can be summarized assigned to the categories "daytime activities," "nighttime activities," "staff training," and "light exposure." The approaches showed similarities and differences in procedures, materials, modes of delivery, intervention provider, and intervention period. None of the studies described any intended interactions between components or considered context characteristics in intervention modeling as well as internal and external facilitators or barriers influencing delivery of intervention. We identified positive or mixed positive effects for sleep-related outcomes for the mentioned categories. CONCLUSIONS The analysis of included interventions demonstrates somehow promising results, although findings are difficult to interpret as interventions were not well described, and the challenges of developing and evaluating complex interventions were not sufficiently acknowledged.
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Dichter MN, Berg A, Hylla J, Eggers D, Wilfling D, Möhler R, Haastert B, Meyer G, Halek M, Köpke S. Evaluation of a multi-component, non-pharmacological intervention to prevent and reduce sleep disturbances in people with dementia living in nursing homes (MoNoPol-sleep): study protocol for a cluster-randomized exploratory trial. BMC Geriatr 2021; 21:40. [PMID: 33430785 PMCID: PMC7802225 DOI: 10.1186/s12877-020-01997-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 12/29/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Sleep problems are highly prevalent in people with dementia. Nevertheless, there is no "gold standard" intervention to prevent or reduce sleep problems in people with dementia. Existing interventions are characterized by a pronounced heterogeneity as well as insufficient knowledge about the possibilities and challenges of implementation. The aim of this study is to pilot and evaluate the effectiveness of a newly developed complex intervention to prevent and reduce sleep problems in people with dementia living in nursing homes. METHODS This study is a parallel group cluster-randomized controlled trial. The intervention consists of six components: (1) the assessment of established sleep-promoting interventions and an appropriate environment in the participating nursing homes, (2) the implementation of two "sleep nurses" as change agents per nursing home, (3) a basic education course for nursing staff: "Sleep problems in dementia", (4) an advanced education course for nursing staff: "Tailored problem-solving" (two workshops), (5) workshops: "Development of an institutional sleep-promoting concept" (two workshops with nursing management and sleep nurses) and (6) written information and education material (e.g. brochure and "One Minute Wonder" poster). The intervention will be performed over a period of 16 weeks and compared with usual care in the control group. Overall, 24 nursing homes in North, East and West Germany will be included and randomized in a 1:1 ratio. The primary outcome is the prevalence of sleep problems in people with dementia living in nursing homes. Secondary outcomes are quality of life, quality of sleep, daytime sleepiness and agitated behavior of people with dementia, as well as safety parameters like psychotropic medication, falls and physical restraints. The outcomes will be assessed using a mix of instruments based on self- and proxy-rating. A cost analysis and a process evaluation will be performed in conjunction with the study. CONCLUSIONS It is expected that the intervention will reduce the prevalence of sleep problems in people with dementia, thus not only improving the quality of life for people with dementia, but also relieving the burden on nursing staff caused by sleep problems. TRIAL REGISTRATION Current controlled trials: ISRCTN36015309 . Date of registration: 06/11/2020.
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Affiliation(s)
- Martin N Dichter
- Institute of Nursing Science, University Hospital of Cologne, Gleuler Straße 176-178, D-50935, Cologne, Germany.
- Neurodegenerative Diseases (DZNE), Witten, Stockumer Straße 12, 58453, Witten, Germany.
- School of Nursing Science, Witten/Herdecke University, Stockumer Straße 12, 58453, Witten, Germany.
| | - Almuth Berg
- Institute for Health and Nursing Science, Medical Faculty, Martin Luther University Halle-Wittenberg, 06112, Halle (Saale), Germany
| | - Jonas Hylla
- Neurodegenerative Diseases (DZNE), Witten, Stockumer Straße 12, 58453, Witten, Germany
- School of Nursing Science, Witten/Herdecke University, Stockumer Straße 12, 58453, Witten, Germany
| | - Daniela Eggers
- Institute of Social Medicine and Epidemiology, University of Lübeck, Ratzeburger Allee 160, 23562, Lübeck, Germany
| | - Denise Wilfling
- Institute of Social Medicine and Epidemiology, University of Lübeck, Ratzeburger Allee 160, 23562, Lübeck, Germany
| | - Ralph Möhler
- Institute for Health Services Research and Health Economics, Center for Health and Society, Faculty of Medicine, Heinrich-Heine University Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany
- School of Public health, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld, Germany
| | | | - Gabriele Meyer
- Institute for Health and Nursing Science, Medical Faculty, Martin Luther University Halle-Wittenberg, 06112, Halle (Saale), Germany
| | - Margareta Halek
- Neurodegenerative Diseases (DZNE), Witten, Stockumer Straße 12, 58453, Witten, Germany
- School of Nursing Science, Witten/Herdecke University, Stockumer Straße 12, 58453, Witten, Germany
| | - Sascha Köpke
- Institute of Nursing Science, University Hospital of Cologne, Gleuler Straße 176-178, D-50935, Cologne, Germany
- Institute of Social Medicine and Epidemiology, University of Lübeck, Ratzeburger Allee 160, 23562, Lübeck, Germany
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Garbarino S, Lanteri P, Sannita WG, Bragazzi NL, Scoditti E. Circadian Rhythms, Sleep, Immunity, and Fragility in the Elderly: The Model of the Susceptibility to Infections. Front Neurol 2021; 11:558417. [PMID: 33391142 PMCID: PMC7775525 DOI: 10.3389/fneur.2020.558417] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 12/02/2020] [Indexed: 11/13/2022] Open
Affiliation(s)
- Sergio Garbarino
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics and Maternal/Child Sciences, Polyclinic Hospital San Martino Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), University of Genova, Genova, Italy
| | - Paola Lanteri
- Department of Diagnostics and Applied Technology, Neurophysiopathology Center, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Istituto Neurologico Carlo Besta, Milan, Italy
| | - Walter G Sannita
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics and Maternal/Child Sciences, Polyclinic Hospital San Martino Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), University of Genova, Genova, Italy
| | - Nicola L Bragazzi
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics and Maternal/Child Sciences, Polyclinic Hospital San Martino Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), University of Genova, Genova, Italy.,Laboratory for Industrial and Applied Mathematics, Department of Mathematics and Statistics, York University, Toronto, ON, Canada
| | - Egeria Scoditti
- National Research Council, Institute of Clinical Physiology, Lecce, Italy
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17
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Trajectory analysis of sleep maintenance problems in midlife women before and after surgical menopause: the Study of Women's Health Across the Nation (SWAN). ACTA ACUST UNITED AC 2021; 27:278-288. [PMID: 31934947 DOI: 10.1097/gme.0000000000001475] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Investigate temporal patterns of sleep maintenance problems in women who became surgically menopausal (hysterectomy with bilateral oophorectomy) before their final menstrual period and examine whether presurgery trajectories of sleep maintenance problems are related to problems staying asleep postsurgery. METHODS Longitudinal analysis of sleep self-reports collected every 1 to 2 years from 1996 to 2013 from 176 surgically menopausal women in the Study of Women's Health Across the Nation, a seven-site community-based, multiethnic/multiracial, cohort study. Median follow-up was 15.3 years (4.2 years presurgery, 10.2 years postsurgery). Group-based trajectory modeling was used to identify patterns of problems staying asleep, and the presurgery trajectories were used to predict similar postsurgery sleep problems. RESULTS Four trajectory patterns of sleep maintenance problems were identified: low (33.5% of women), moderate (33.0%), increasing during presurgery (19.9%), and high (13.6%). One-fifth of women reported a presurgery increase in these problems. Postsurgically, problems staying asleep remained associated with similar levels of presurgical problems, even after adjusting for postsurgical early morning awakening, frequent vasomotor symptoms, and bodily pain score (βlow = -1.716, βmoderate = -1.144, βincreasing = -0.957, βhigh = -1.021; all P values <0.01). CONCLUSIONS Sleep maintenance problems were relatively stable across time postsurgery. These data are remarkably consistent with our trajectory results across the natural menopause, suggesting that presurgical assessment of sleep concerns could help guide women's expectations postsurgically. Although reassuring that sleep complaints do not worsen postsurgically for most surgically menopausal women, referral to a sleep specialist should be considered if sleep symptoms persist or worsen after surgery.
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18
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Association between conventional or blue-light-filtering intraocular lenses and survival in bilateral cataract surgery patients. iScience 2020; 24:102009. [PMID: 33490917 PMCID: PMC7809500 DOI: 10.1016/j.isci.2020.102009] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 12/17/2020] [Accepted: 12/23/2020] [Indexed: 11/24/2022] Open
Abstract
Circadian rhythms regulate adaptive alterations in mammalian physiology and are maximally entrained by the short wavelength blue spectrum; cataracts block the transmission of light, particularly blue light. Cataract surgery is performed with two types of intraocular lenses (IOL): (1) conventional IOL that transmit the entire visible spectrum and (2) blue-light-filtering (BF) IOL that block the short wavelength blue spectrum. We hypothesized that the transmission properties of IOL are associated with long-term survival. This retrospective cohort study of a 15-hospital healthcare system identified 9,108 participants who underwent bilateral cataract surgery; 3,087 were implanted with conventional IOL and 6,021 received BF-IOL. Multivariable Cox proportional hazards models that included several a priori determined subgroup and sensitivity analyses yielded estimates supporting that conventional IOL compared with BF-IOL may be associated with significantly reduced risk of long-term death. Confirming these differences and identifying any potential causal mechanisms await the conduct of appropriately controlled prospective translational trials. Risk of all-cause mortality in 9,108 patients after bilateral cataract surgery Comparison of conventional intraocular lenses to blue-light-filtering intraocular lenses Conventional lenses that transmit the entire visible spectrum may improve survival Glaucoma patients particularly may benefit from conventional intraocular lenses
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19
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Wall J, Xie H, Wang X. Interaction of Sleep and Cortical Structural Maintenance From an Individual Person Microlongitudinal Perspective and Implications for Precision Medicine Research. Front Neurosci 2020; 14:769. [PMID: 32848551 PMCID: PMC7411006 DOI: 10.3389/fnins.2020.00769] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 06/30/2020] [Indexed: 12/18/2022] Open
Abstract
Sleep and maintenance of brain structure are essential for the continuity of a person's cognitive/mental health. Interestingly, whether normal structural maintenance of the brain and sleep continuously interact in some way over day-week-month times has never been assessed at an individual-person level. This study used unconventional microlongitudinal sampling, structural magnetic resonance imaging, and n-of-1 analyses to assess normal interactions between fluctuations in the structural maintenance of cerebral cortical thickness and sleep duration for day, week, and multi-week intervals over a 6-month period in a healthy adult man. Correlation and time series analyses provided indications of "if-then," i.e., "if" this preceded "then" this followed, sleep-to-thickness maintenance and thickness maintenance-to-sleep bidirectional inverse interactions. Inverse interaction patterns were characterized by concepts of graded influences across nights, bilaterally positive relationships, continuity across successive weeks, and longer delayed/prolonged effects in the thickness maintenance-to-sleep than sleep-to-thickness maintenance direction. These interactions are proposed to involve normal circadian/allostatic/homeostatic mechanisms that continuously influence, and are influenced by, cortical substrate remodeling/turnover and sleep/wake cycle. Understanding interactions of individual person "-omics" is becoming a central interest in precision medicine research. The present n-of-1 findings contribute to this interest and have implications for precision medicine research use of a person's cortical structural and sleep "-omics" to optimize the continuous maintenance of that individual's cortical structure, sleep, and cognitive/mental health.
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Affiliation(s)
- John Wall
- Department of Neurosciences, University of Toledo College of Medicine and Life Sciences, Toledo, OH, United States
| | - Hong Xie
- Department of Neurosciences, University of Toledo College of Medicine and Life Sciences, Toledo, OH, United States
| | - Xin Wang
- Department of Neurosciences, University of Toledo College of Medicine and Life Sciences, Toledo, OH, United States
- Department of Psychiatry, University of Toledo College of Medicine and Life Sciences, Toledo, OH, United States
- Department of Radiology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, United States
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20
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Ye B, Zhu Y, Wang X, Wei S, Liang Y. Association between sleep-wake habits and use of health care services of middle-aged and elderly adults in China. Aging (Albany NY) 2020; 12:3926-3935. [PMID: 32092045 PMCID: PMC7066913 DOI: 10.18632/aging.102860] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 02/04/2020] [Indexed: 05/07/2023]
Abstract
OBJECTIVE To examine the relationship between sleep-wake habits and the use of health care services. RESULTS The proportions of the participants who were "early to bed" and "late to bed" were 48.7% and 51.3%, respectively. In the full sample, compared with those who were early to bed and early to rise, participants who went to bed late were more likely to report physician visits (late to bed and early to rise: OR = 1.13, 95% CI: 1.08-1.19, late to bed and late to rise: OR = 1.27, 95% CI: 1.18-1.38, respectively). We found no significant association between sleep-wake habits and the number of hospitalization. CONCLUSIONS Those middle-aged and elderly people who stayed up late and got up late are more likely to visit the doctors than those who went to bed early and got up early. METHODS We obtained data from a cohort study of retired employees in China, and 36,601 (95.59%) involved in the present study. The participants were allocated into 4 sleep-wake habits groups: Early-bed/Early-rise, Early-bed/Late-rise, Late-bed/Early-rise, and Late-bed/Late-rise. We explored the association between sleep-wake habits with the number of physician visits and hospitalizations.
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Affiliation(s)
- Beizhu Ye
- School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Yimei Zhu
- School of Media, Communication and Sociology, University of Leicester, Leicester LE1 7JA, UK
| | - Xiaoyu Wang
- School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Sheng Wei
- School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Yuan Liang
- School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
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21
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Camello-Almaraz C, Martin-Cano FE, Santos FJ, Espin MT, Antonio Madrid J, Pozo MJ, Camello PJ. Age-Induced Differential Changes in the Central and Colonic Human Circadian Oscillators. Int J Mol Sci 2020; 21:ijms21020674. [PMID: 31968581 PMCID: PMC7013976 DOI: 10.3390/ijms21020674] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 01/10/2020] [Accepted: 01/16/2020] [Indexed: 12/31/2022] Open
Abstract
Aging modifies not only multiple cellular and homeostatic systems, but also biological rhythms. The circadian system is driven by a central hypothalamic oscillator which entrains peripheral oscillators, in both cases underlain by circadian genes. Our aim was to characterize the effect of aging in the circadian expression of clock genes in the human colon. Ambulatory recordings of the circadian rhythms of skin wrist temperature, motor activity and the integrated variable TAP (temperature, activity and position) were dampened by aging, especially beyond 74 years of age. On the contrary, quantitative analysis of genes expression in the muscle layer of colonic explants during 24 h revealed that the circadian expression of Bmal1, Per1 and Clock genes, was larger beyond that age. In vitro experiments showed that aging induced a parallel increase in the myogenic contractility of the circular colonic muscle. This effect was not accompanied by enhancement of Ca2+ signals. In conclusion, we describe here for the first time the presence of a molecular oscillator in the human colon. Aging has a differential effect on the systemic circadian rhythms, that are impaired by aging, and the colonic oscillator, that is strengthened in parallel with the myogenic contractility.
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Affiliation(s)
- Cristina Camello-Almaraz
- Department of Physiology, Institute of Molecular Pathology Biomarkers, University of Extremadura, Campus Universitario, 10003 Cáceres, Spain; (C.C.-A.); (F.E.M.-C.); (M.J.P.)
| | - Francisco E. Martin-Cano
- Department of Physiology, Institute of Molecular Pathology Biomarkers, University of Extremadura, Campus Universitario, 10003 Cáceres, Spain; (C.C.-A.); (F.E.M.-C.); (M.J.P.)
| | - Francisco J. Santos
- Surgery Department, University Hospital, Servicio Extremeño de Salud, Avda Universidad, 10004 Cáceres, Spain;
| | - Mª Teresa Espin
- Faculty of Medicine, Infanta Cristina University Hospital, Servicio Extremeño de Salud, Avda Elbas, 06080 Badajoz, Spain;
| | - Juan Antonio Madrid
- Chronobiology Lab, Department of Physiology, College of Biology, University of Murcia, Mare Nostrum Campus, IMIB-Arrixaca, 30100 Murcia, Spain;
| | - Maria J. Pozo
- Department of Physiology, Institute of Molecular Pathology Biomarkers, University of Extremadura, Campus Universitario, 10003 Cáceres, Spain; (C.C.-A.); (F.E.M.-C.); (M.J.P.)
| | - Pedro J. Camello
- Department of Physiology, Institute of Molecular Pathology Biomarkers, University of Extremadura, Campus Universitario, 10003 Cáceres, Spain; (C.C.-A.); (F.E.M.-C.); (M.J.P.)
- Correspondence:
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22
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Murillo-Rodríguez E, Budde H, Veras AB, Rocha NB, Telles-Correia D, Monteiro D, Cid L, Yamamoto T, Machado S, Torterolo P. The Endocannabinoid System May Modulate Sleep Disorders in Aging. Curr Neuropharmacol 2020; 18:97-108. [PMID: 31368874 PMCID: PMC7324886 DOI: 10.2174/1570159x17666190801155922] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 07/15/2019] [Accepted: 07/17/2019] [Indexed: 12/12/2022] Open
Abstract
Aging is an inevitable process that involves changes across life in multiple neurochemical, neuroanatomical, hormonal systems, and many others. In addition, these biological modifications lead to an increase in age-related sickness such as cardiovascular diseases, osteoporosis, neurodegenerative disorders, and sleep disturbances, among others that affect activities of daily life. Demographic projections have demonstrated that aging will increase its worldwide rate in the coming years. The research on chronic diseases of the elderly is important to gain insights into this growing global burden. Novel therapeutic approaches aimed for treatment of age-related pathologies have included the endocannabinoid system as an effective tool since this biological system shows beneficial effects in preclinical models. However, and despite these advances, little has been addressed in the arena of the endocannabinoid system as an option for treating sleep disorders in aging since experimental evidence suggests that some elements of the endocannabinoid system modulate the sleep-wake cycle. This article addresses this less-studied field, focusing on the likely perspective of the implication of the endocannabinoid system in the regulation of sleep problems reported in the aged. We conclude that beneficial effects regarding the putative efficacy of the endocannabinoid system as therapeutic tools in aging is either inconclusive or still missing.
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Affiliation(s)
- Eric Murillo-Rodríguez
- Laboratorio de Neurociencias Moleculares e Integrativas, Escuela de Medicina, División Ciencias de la Salud, Universidad Anáhuac Mayab, Mérida, Yucatán, México
- Intercontinental Neuroscience Research Group
| | - Henning Budde
- Intercontinental Neuroscience Research Group
- Faculty of Human Sciences, Medical School Hamburg, Hamburg, Germany
| | - André Barciela Veras
- Intercontinental Neuroscience Research Group
- Dom Bosco Catholic University, Campo Grande, Mato Grosso do Sul, Brazil
| | - Nuno Barbosa Rocha
- Intercontinental Neuroscience Research Group
- School of Health, Polytechnic Institute of Porto, Porto, Portugal
| | - Diogo Telles-Correia
- Intercontinental Neuroscience Research Group
- University of Lisbon, Faculty of Medicine, Lisbon, Portugal
| | - Diogo Monteiro
- Intercontinental Neuroscience Research Group
- Sport Science School of Rio Maior-Polytechnic Institute of Santarém, Rio Maior, Portugal
- Research Center in Sport, Health and Human Development-CIDESD, Vila Real, Portugal
| | - Luis Cid
- Intercontinental Neuroscience Research Group
- Sport Science School of Rio Maior-Polytechnic Institute of Santarém, Rio Maior, Portugal
- Research Center in Sport, Health and Human Development-CIDESD, Vila Real, Portugal
| | - Tetsuya Yamamoto
- Intercontinental Neuroscience Research Group
- Graduate School of Technology, Industrial and Social Sciences, Tokushima University, Tokushima, Japan
| | - Sérgio Machado
- Intercontinental Neuroscience Research Group
- Laboratory of Physical Activity Neuroscience, Physical Activity Sciences Postgraduate Program, Salgado de Oliveira University, Niterói, Brazil
| | - Pablo Torterolo
- Intercontinental Neuroscience Research Group
- Laboratorio de Neurobiología del Sueño, Departamento de Fisiología, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
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23
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Bernstein JPK, De Vito A, Weitzner DS, MacAulay R, Calamia M, Brouillette R, Foil H, Carmichael OT, Keller JN. Examining Relationships between Multiple Self-Reported Sleep Measures and Gait Domains in Cognitively Healthy Older Adults. Gerontology 2019; 66:47-54. [PMID: 31071713 DOI: 10.1159/000499737] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Accepted: 03/20/2019] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Gait-related changes in older adulthood may be related to changes in cognition (e.g., executive functioning), and recent work suggests that different self-reported measures of sleep may be tied to contrasting aspects of executive functioning. However, the relationship between these self-reported sleep measures and gait domains has not been explored. Such an investigation would be useful in helping to determine which older adults might exhibit changes in gait as well as experience other gait-associated changes (e.g., increased fall risk). OBJECTIVE To examine associations between different aspects of self-reported sleep and gait domains in a sample of cognitively healthy older adults. METHOD A total of 423 older adults (mean age 69.9 years, range 50-92) completed self-report measures of sleep quality, daytime sleepiness, and sleep-related distress. The participants also completed an objective, electronic measure of both single-task and dual-task gait (i.e., GAITRite). Principal component analyses were used to elucidate the solution for each gait condition, and multiple linear regression was used to examine the contributions of sleep measures to variability in gait performance. RESULTS A 5-component solution of the single-task condition and a 4-component solution of the dual-task condition were identified. Multiple linear regressions revealed that a poorer sleep quality was associated with greater single-task and dual-task asymmetry. Greater daytime sleepiness was associated with increased dual-task gait variability and postural control. After controlling for the effects of other facets of sleep, sleep-related distress was not associated with any gait domain. CONCLUSIONS Among cognitively healthy older adults,sleep quality and daytime sleepiness, but not sleep-related distress, are associated with aspects of gait. Patients who report these symptoms should be assessed and monitored for possible changes in gait.
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Affiliation(s)
- John P K Bernstein
- Department of Psychology, Louisiana State University, Baton Rouge, Louisiana, USA,
| | - Alyssa De Vito
- Department of Psychology, Louisiana State University, Baton Rouge, Louisiana, USA
| | - Daniel S Weitzner
- Department of Psychology, Louisiana State University, Baton Rouge, Louisiana, USA
| | - Rebecca MacAulay
- Department of Psychology, University of Maine, Orono, Maine, USA
| | - Matthew Calamia
- Department of Psychology, Louisiana State University, Baton Rouge, Louisiana, USA.,Institute for Dementia Research and Prevention, Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA
| | - Robert Brouillette
- Institute for Dementia Research and Prevention, Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA
| | - Heather Foil
- Institute for Dementia Research and Prevention, Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA
| | | | - Jeffrey N Keller
- Institute for Dementia Research and Prevention, Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA
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24
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Gould CE, Spira AP, Liou-Johnson V, Cassidy-Eagle E, Kawai M, Mashal N, O'Hara R, Beaudreau SA. Association of Anxiety Symptom Clusters with Sleep Quality and Daytime Sleepiness. J Gerontol B Psychol Sci Soc Sci 2019; 73:413-420. [PMID: 28379498 DOI: 10.1093/geronb/gbx020] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Indexed: 11/15/2022] Open
Abstract
Objectives To better understand links between anxiety and sleep disturbances in older adults, we examined the association of different phenotypic presentations of anxiety (i.e., affective, cognitive, and somatic clusters) with global sleep quality and daytime sleepiness. Methods 109 community-dwelling adults aged 66-92 years old (57% female) completed assessments of global sleep quality (Pittsburgh Sleep Quality Index), daytime sleepiness (Epworth Sleepiness Scale), affective anxiety symptoms (Geriatric Anxiety Scale (GAS) affective subscale), cognitive anxiety symptoms (GAS cognitive subscale), and somatic anxiety symptoms (GAS somatic subscale). Results In hierarchical regression models adjusted for depressive symptoms and health status, greater affective and somatic anxiety were associated with poorer global sleep quality (affective B = 0.30, p = .01; somatic B = 0.41, p = .01). Somatic and cognitive anxiety were associated with greater daytime sleepiness (somatic B = 0.74, p < .001; cognitive B = 0.30, p = .03), but these associations were attenuated by covariates added to the models. Discussion These findings indicate that anxiety symptom clusters are differentially associated with specific sleep-related disturbances, underscoring the complex relationship of late-life anxiety to sleep. Results suggest that personalized treatments, such as targeted sleep interventions, may improve specific anxiety-symptom domains, or vice versa.
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Affiliation(s)
- Christine E Gould
- Geriatric Research Education and Clinical Center (GRECC), Veterans Affairs Palo Alto Health Care System, California.,Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, California
| | - Adam P Spira
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.,Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Johns Hopkins Center on Aging and Health, Baltimore, Maryland
| | - Victoria Liou-Johnson
- Pacific Graduate School of Psychology, Palo Alto University, California.,Sierra Pacific Mental Illness Research Education and Clinical Centers (MIRECC), Veterans Affairs Palo Alto Health Care System, California
| | - Erin Cassidy-Eagle
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, California
| | - Makoto Kawai
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, California.,Sierra Pacific Mental Illness Research Education and Clinical Centers (MIRECC), Veterans Affairs Palo Alto Health Care System, California
| | - Nehjla Mashal
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, California.,Sierra Pacific Mental Illness Research Education and Clinical Centers (MIRECC), Veterans Affairs Palo Alto Health Care System, California
| | - Ruth O'Hara
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, California.,Sierra Pacific Mental Illness Research Education and Clinical Centers (MIRECC), Veterans Affairs Palo Alto Health Care System, California
| | - Sherry A Beaudreau
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, California.,Sierra Pacific Mental Illness Research Education and Clinical Centers (MIRECC), Veterans Affairs Palo Alto Health Care System, California
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25
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Hennawy M, Sabovich S, Liu CS, Herrmann N, Lanctôt KL. Sleep and Attention in Alzheimer's Disease. THE YALE JOURNAL OF BIOLOGY AND MEDICINE 2019; 92:53-61. [PMID: 30923473 PMCID: PMC6430169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Individuals with Alzheimer's disease (AD) present with a wide variety of symptoms, including sleep disruption and sleep disorders. Conversely, disordered sleep has been associated with an increased risk of developing AD. Both conditions individually have adverse effects on attention, which can be further divided into selective, sustained, divided, and alternating attention. The neural mechanisms underpinning sleep problems in AD involve the disruption of the circadian system. This review comprehensively discusses the types of attention impairments, the relationship between AD pathology and sleep disruption, and the effect of sleep issues on attention in AD. Recommendations for future research include addressing the lack of consistency among study designs and outcomes, and the need to continue exploring the biology of sleep and attention in AD.
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Affiliation(s)
- Mirna Hennawy
- Neuropsychopharmacology Research Group, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Solomon Sabovich
- Neuropsychopharmacology Research Group, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Celina S. Liu
- Neuropsychopharmacology Research Group, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, ON, Canada,Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - Nathan Herrmann
- Neuropsychopharmacology Research Group, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, ON, Canada,Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Krista L. Lanctôt
- Neuropsychopharmacology Research Group, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, ON, Canada,Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada,Department of Psychiatry, University of Toronto, Toronto, ON, Canada,To whom all correspondence should be addressed: Krista L. Lanctôt, Sunnybrook Health Sciences Centre, 2075 Bayview Ave, Room FG08, Toronto, ON. M4N 3M5, Canada; Fax: 416-480-6022,
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Sagha Zadeh R, Capezuti E, Eshelman P, Woody N, Tiffany J, Krieger AC. Non-pharmacological solutions to sleep and circadian rhythm disruption: voiced bedside experiences of hospice and end-of-life staff caregivers. BMC Palliat Care 2018; 17:131. [PMID: 30579339 PMCID: PMC6303860 DOI: 10.1186/s12904-018-0385-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Accepted: 12/09/2018] [Indexed: 12/29/2022] Open
Abstract
Background Sleep disturbance is a significant issue, particularly for patients with advanced terminal illness. Currently, there are no practice-based recommended approaches for managing sleep and circadian disruptions in this population. To address this gap, a cross-sectional focus group study was performed engaging 32 staff members at four hospices/end-of-life programs in three demographically diverse counties in New York State. Methods Participants responded to structured open-ended questions. Responses were transcribed and subjected to qualitative content analysis. The themes and recommendations for improved practice that emerged were tabulated using Atlas TI qualitative software. Results This report details the experiences of hospice and end-of-life care staff in managing sleep and circadian disruptions affecting patients and analyzes their recommendations for improving care. Caregivers involved in the study described potential interventions that would improve sleep and reduce circadian disruptions. They particularly highlighted a need for improved evaluation and monitoring systems, as well as sleep education programs for both formal and informal caregivers. Conclusions The voiced experiences of frontline hospice and end-of-life caregivers confirmed that disruption in sleep and circadian rhythms is a common issue for their patients and is not effectively addressed in current research and practice. The caregivers’ recommendations focused on management strategies and underscored the need for well-tested interventions to promote sleep in patients receiving end-of-life care. Additional research is needed to examine the effectiveness of systematic programs that can be easily integrated into the end-of-life care process to attenuate sleep disturbances.
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Affiliation(s)
- Rana Sagha Zadeh
- Health Design Innovations Lab (affiliated with Cornell's Institute for Healthy Futures), Design and Environmental Analysis, Cornell University, 2425 Martha Van Rensselaer Hall, Ithaca, NY, 14853-4401, USA.
| | - Elizabeth Capezuti
- W.R. Hearst Foundation Chair in Gerontology, Hunter College of the City University of New York, New York, NY, USA
| | - Paul Eshelman
- Health Design Innovations Lab (affiliated with Cornell's Institute for Healthy Futures), Design and Environmental Analysis, Cornell University, 2425 Martha Van Rensselaer Hall, Ithaca, NY, 14853-4401, USA
| | - Nicole Woody
- Healthcare Strategy & Operations Consultant, New York, NY, USA
| | - Jennifer Tiffany
- Cornell University Cooperative Extension-NYC Programs, Outreach and Community Engagement, Bronfenbrenner Center for Translational Research, Ithaca, NY, USA
| | - Ana C Krieger
- Center for Sleep Medicine, Weill Cornell Medical Center, New York, NY, USA
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Kravitz HM, Kazlauskaite R, Joffe H. Sleep, Health, and Metabolism in Midlife Women and Menopause: Food for Thought. Obstet Gynecol Clin North Am 2018; 45:679-694. [PMID: 30401550 DOI: 10.1016/j.ogc.2018.07.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Sleep and metabolism are essential components of health. Metabolic health depends largely on individual's lifestyle. Disturbances in sleep health, such as changes in sleep patterns that are associated with menopause/reproductive aging and chronologic aging, may have metabolic health consequences. Sleep restriction and age-related changes in sleep and circadian rhythms may influence changes in appetite and reproductive hormones, energy expenditure, and body adiposity. In this article, the authors describe how menopause-related sleep disturbance may affect eating behavior patterns, immunometabolism, immunometabolic dysfunction, and associations between sleep and metabolic outcomes.
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Affiliation(s)
- Howard M Kravitz
- Department of Psychiatry, Rush University Medical Center, Rush West Campus, 2150 West Harrison Street, Room 278, Chicago, IL 60612, USA; Department of Preventive Medicine, Rush University Medical Center, 1700 West Van Buren Street, Triangle Office Building, Suite 470, Chicago, IL, USA.
| | - Rasa Kazlauskaite
- Department of Medicine, Division of Endocrinology and Metabolism, Rush University Medical Center, 1750 West Harrison Street, Suite 604w Jelke, Chicago, IL 60612, USA
| | - Hadine Joffe
- Department of Psychiatry and Connors Center for Women's Health, Brigham and Women's Hospital, Dana Farber Cancer Institute, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA
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Cattaneo G, Bartrés-Faz D, Morris TP, Sánchez JS, Macià D, Tarrero C, Tormos JM, Pascual-Leone A. The Barcelona Brain Health Initiative: A Cohort Study to Define and Promote Determinants of Brain Health. Front Aging Neurosci 2018; 10:321. [PMID: 30405394 PMCID: PMC6204574 DOI: 10.3389/fnagi.2018.00321] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 09/24/2018] [Indexed: 01/25/2023] Open
Abstract
The Barcelona Brain Health Initiative (BBHI) is an ongoing prospective longitudinal study focused on identifying determinants of brain health. The main objectives are: (i) to characterize lifestyle, cognitive, behavioral and environmental markers related to a given individual's cognitive and mental functions in middle to old age, (ii) to assess the biological determinants predictive of maintenance of brain health, and (iii) to evaluate the impact of a controlled multi-dimensional lifestyle intervention on improving and maintaining brain health. The BBHI cohort consists of >4500 healthy participants aged 40-65 years followed through online questionnaires (Phase I) assessing participants' self-perceived health and lifestyle factors in seven different domains: overall health, physical exercise, cognitive activity, sleep, nutrition, social interactions, and life purpose. In Phase II a sub-group of 1,000 individuals is undergoing detailed in-person evaluations repeated at two-yearly intervals. These evaluations will provide deep phenotyping of brain function, including medical, neurological and psychiatric examinations, assessment of physical fitness, neuropsychological assessments, structural and functional brain magnetic resonance imaging, electroencephalography and perturbation-based non-invasive brain stimulation evaluations of brain activity, as well as collection of biological samples. Finally, in Phase III a further sub-group of 500 participants will undergo a similar in-person assessment before and after a multi-dimensional intervention to optimize lifestyle habits and evaluate its effects on cognitive and brain structure and function. The intervention group will receive remote supervision through an ICT-based solution, with the support of an expert in health and lifestyle coaching strategies aimed at promoting adherence. On the other hand, the control group will not have this coaching support, and will only receive education and recommendations about healthy habits. Results of this three-part initiative shall critically contribute to a better understanding of the determinants to promote and maintain brain health over the lifespan.
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Affiliation(s)
- Gabriele Cattaneo
- Institut Guttmann, Institut Universitari de Neurorehabilitació adscrit a la UAB, Badalona, Spain
- Institut d’Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - David Bartrés-Faz
- Institut Guttmann, Institut Universitari de Neurorehabilitació adscrit a la UAB, Badalona, Spain
- Institut d’Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Departament de Medicina, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, Barcelona, Spain
| | - Timothy P. Morris
- Institut Guttmann, Institut Universitari de Neurorehabilitació adscrit a la UAB, Badalona, Spain
- Universitat Autònoma de Barcelona, Barcelona, Spain
- Fundació Institut d’Investigació en Ciències de la Salut Germans Trias i Pujol, Badalona, Spain
| | - Javier Solana Sánchez
- Institut Guttmann, Institut Universitari de Neurorehabilitació adscrit a la UAB, Badalona, Spain
- Universitat Autònoma de Barcelona, Barcelona, Spain
- Fundació Institut d’Investigació en Ciències de la Salut Germans Trias i Pujol, Badalona, Spain
| | - Dídac Macià
- Institut Guttmann, Institut Universitari de Neurorehabilitació adscrit a la UAB, Badalona, Spain
- Universitat Autònoma de Barcelona, Barcelona, Spain
- Fundació Institut d’Investigació en Ciències de la Salut Germans Trias i Pujol, Badalona, Spain
| | - Clara Tarrero
- Institut Guttmann, Institut Universitari de Neurorehabilitació adscrit a la UAB, Badalona, Spain
- Universitat Autònoma de Barcelona, Barcelona, Spain
- Fundació Institut d’Investigació en Ciències de la Salut Germans Trias i Pujol, Badalona, Spain
| | - Josep M. Tormos
- Institut Guttmann, Institut Universitari de Neurorehabilitació adscrit a la UAB, Badalona, Spain
- Universitat Autònoma de Barcelona, Barcelona, Spain
- Fundació Institut d’Investigació en Ciències de la Salut Germans Trias i Pujol, Badalona, Spain
| | - Alvaro Pascual-Leone
- Institut Guttmann, Institut Universitari de Neurorehabilitació adscrit a la UAB, Badalona, Spain
- Berenson-Allen Center for Noninvasive Brain Stimulation, Division of Cognitive Neurology, Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
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Martinez-Nicolas A, Madrid JA, García FJ, Campos M, Moreno-Casbas MT, Almaida-Pagán PF, Lucas-Sánchez A, Rol MA. Circadian monitoring as an aging predictor. Sci Rep 2018; 8:15027. [PMID: 30301951 PMCID: PMC6177481 DOI: 10.1038/s41598-018-33195-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 09/25/2018] [Indexed: 12/14/2022] Open
Abstract
The ageing process is associated with sleep and circadian rhythm (SCR) frailty, as well as greater sensitivity to chronodisruption. This is essentially due to reduced day/night contrast, decreased sensitivity to light, napping and a more sedentary lifestyle. Thus, the aim of this study is to develop an algorithm to identify a SCR phenotype as belonging to young or aged subjects. To do this, 44 young and 44 aged subjects were recruited, and their distal skin temperature (DST), activity, body position, light, environmental temperature and the integrated variable TAP rhythms were recorded under free-living conditions for five consecutive workdays. Each variable yielded an individual decision tree to differentiate between young and elderly subjects (DST, activity, position, light, environmental temperature and TAP), with agreement rates of between 76.1% (light) and 92% (TAP). These decision trees were combined into a unique decision tree that reached an agreement rate of 95.3% (4 errors out of 88, all of them around the cut-off point). Age-related SCR changes were very significant, thus allowing to discriminate accurately between young and aged people when implemented in decision trees. This is useful to identify chronodisrupted populations that could benefit from chronoenhancement strategies.
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Affiliation(s)
- A Martinez-Nicolas
- Chronobiology Lab, Department of Physiology, College of Biology, University of Murcia, Mare Nostrum Campus, IUIE, IMIB-Arrixaca, Murcia, Spain
- Ciber Fragilidad y Envejecimiento Saludable (CIBERFES), Madrid, Spain
| | - J A Madrid
- Chronobiology Lab, Department of Physiology, College of Biology, University of Murcia, Mare Nostrum Campus, IUIE, IMIB-Arrixaca, Murcia, Spain
- Ciber Fragilidad y Envejecimiento Saludable (CIBERFES), Madrid, Spain
| | - F J García
- Ciber Fragilidad y Envejecimiento Saludable (CIBERFES), Madrid, Spain
- Geriatrics Section, Hospital Virgen del Valle, Toledo, Spain
| | - M Campos
- Department of Computer Science and Systems, University of Murcia, IMIB-Arrixaca, Murcia, Spain
| | - M T Moreno-Casbas
- Ciber Fragilidad y Envejecimiento Saludable (CIBERFES), Madrid, Spain
- Nursing and Healthcare Research Unit (Investén-isciii), Madrid, Spain
| | - P F Almaida-Pagán
- Chronobiology Lab, Department of Physiology, College of Biology, University of Murcia, Mare Nostrum Campus, IUIE, IMIB-Arrixaca, Murcia, Spain
- Ciber Fragilidad y Envejecimiento Saludable (CIBERFES), Madrid, Spain
| | - A Lucas-Sánchez
- Chronobiology Lab, Department of Physiology, College of Biology, University of Murcia, Mare Nostrum Campus, IUIE, IMIB-Arrixaca, Murcia, Spain
- Ciber Fragilidad y Envejecimiento Saludable (CIBERFES), Madrid, Spain
| | - M A Rol
- Chronobiology Lab, Department of Physiology, College of Biology, University of Murcia, Mare Nostrum Campus, IUIE, IMIB-Arrixaca, Murcia, Spain.
- Ciber Fragilidad y Envejecimiento Saludable (CIBERFES), Madrid, Spain.
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Capezuti E, Sagha Zadeh R, Pain K, Basara A, Jiang NZ, Krieger AC. A systematic review of non-pharmacological interventions to improve nighttime sleep among residents of long-term care settings. BMC Geriatr 2018; 18:143. [PMID: 29914382 PMCID: PMC6006939 DOI: 10.1186/s12877-018-0794-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 04/27/2018] [Indexed: 12/21/2022] Open
Abstract
Background Disturbances in sleep and circadian rhythms are common among residents of long-term care facilities. In this systematic review, we aim to identify and evaluate the literature documenting the outcomes associated with non-pharmacological interventions to improve nighttime sleep among long-term care residents. Methods The Preferred Reporting Items for Systematic Reviews guided searches of five databases (MEDLINE, Embase, CINAHL, Scopus, and Cochrane Library) for articles reporting results of experimental or quasi-experimental studies conducted in long-term care settings (nursing homes, assisted-living facilities, or group homes) in which nighttime sleep was subjectively or objectively measured as a primary outcome. We categorized each intervention by its intended use and how it was administered. Results Of the 54 included studies evaluating the effects of 25 different non-pharmacological interventions, more than half employed a randomized controlled trial design (n = 30); the others used a pre-post design with (n = 11) or without (n = 13) a comparison group. The majority of randomized controlled trials were at low risk for most types of bias, and most other studies met the standard quality criteria. The interventions were categorized as environmental interventions (n = 14), complementary health practices (n = 12), social/physical stimulation (n = 11), clinical care practices (n = 3), or mind-body practices (n = 3). Although there was no clear pattern of positive findings, three interventions had the most promising results: increased daytime light exposure, nighttime use of melatonin, and acupressure. Conclusions Non-pharmacological interventions have the potential to improve sleep for residents of long-term care facilities. Further research is needed to better standardize such interventions and provide clear implementation guidelines using cost-effective practices. Electronic supplementary material The online version of this article (10.1186/s12877-018-0794-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Elizabeth Capezuti
- Hunter College School of Nursing and the Graduate Center, City University of New York, 425 E. 25th Street, New York, NY, 10011, USA.
| | - Rana Sagha Zadeh
- Design and Environmental Analysis, Cornell University, 170 Martha Van Rensselaer Hall, Ithaca, NY, 14853-4401, USA
| | - Kevin Pain
- Weill Cornell Medicine, Samuel J. Wood Library & C.V. Starr Biomedical Information Center, 1300 York Avenue Room, C-115, New York, NY, 10065-4896, USA
| | - Aleksa Basara
- Department of Economics, Cornell University, 170 Martha Van Rensselaer Hall, Ithaca, NY, 14853-4401, USA
| | - Nancy Ziyan Jiang
- Health Design Innovations Lab, Department of Design & Environmental Analysis, Cornell University, 170 Martha Van Rensselaer Hall, Ithaca, NY, 14853-4401, USA
| | - Ana C Krieger
- Departments of Medicine, Neurology and Genetic Medicine, Weill Cornell Medical College, Cornell University, 425 E. 61st St., 5th Floor, New York, NY, 10065, USA
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Capezuti E, Sagha Zadeh R, Woody N, Basara A, Krieger AC. An Integrative Review of Nonpharmacological Interventions to Improve Sleep among Adults with Advanced Serious Illness. J Palliat Med 2018; 21:700-717. [PMID: 29337603 PMCID: PMC6909694 DOI: 10.1089/jpm.2017.0152] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/15/2017] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Sleep fragmentation is common among those with advanced serious illness. Nonpharmacological interventions to improve sleep have few, if any, adverse effects and are often underutilized in these settings. OBJECTIVE We aimed to summarize the literature related to nonpharmacological interventions to improve sleep among adults with advanced serious illness. METHODS We systematically searched six electronic databases for literature reporting sleep outcomes associated with nonpharmacological interventions that included participants with advanced serious illness during the period of 1996-2016. RESULTS From a total of 2731 results, 42 studies met the inclusion criteria. A total of 31 individual interventions were identified, each evaluated individually and some in combination with other interventions. Twelve of these studies employed either multiple interventions within an intervention category (n = 8) or a multicomponent intervention consisting of interventions from two or more categories (n = 5). The following intervention categories emerged: sleep hygiene (1), environmental (6), physical activity (4), complementary health practices (11), and mind-body practices (13). Of the 42 studies, 22 demonstrated a statistically significant, positive impact on sleep and represented each of the categories. The quality of the studies varied considerably, with 17 studies classified as strong, 17 as moderate, and 8 as weak. CONCLUSIONS Several interventions have been demonstrated to improve sleep in these patients. However, the small number of studies and wide variation of individual interventions within each category limit the generalizability of findings. Further studies are needed to assess interventions and determine effectiveness and acceptability.
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Affiliation(s)
- Elizabeth Capezuti
- School of Nursing, Hunter College and The Graduate Center, City University of New York, New York, New York
| | - Rana Sagha Zadeh
- Department of Design and Environmental Analysis, Cornell University, Ithaca, New York
| | - Nicole Woody
- Healthcare Strategy and Operations Consultant, New York, New York
| | - Aleksa Basara
- Department of Economics, Health Design Innovations Laboratory, Department of Design and Environmental Analysis, Cornell University, Ithaca, New York
| | - Ana C. Krieger
- Departments of Medicine, Neurology, and Genetic Medicine, Center for Sleep Medicine, Weill Cornell Medical Center, New York, New York
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Gulia KK, Kumar VM. Sleep disorders in the elderly: a growing challenge. Psychogeriatrics 2018; 18:155-165. [PMID: 29878472 DOI: 10.1111/psyg.12319] [Citation(s) in RCA: 243] [Impact Index Per Article: 40.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 10/27/2017] [Accepted: 01/15/2018] [Indexed: 12/24/2022]
Abstract
In contrast to newborns, who spend 16-20 h in sleep each day, adults need only about sleep daily. However, many elderly may struggle to obtain those 8 h in one block. In addition to changes in sleep duration, sleep patterns change as age progresses. Like the physical changes that occur during old age, an alteration in sleep pattern is also a part of the normal ageing process. As people age, they tend to have a harder time falling asleep and more trouble staying asleep. Older people spend more time in the lighter stages of sleep than in deep sleep. As the circadian mechanism in older people becomes less efficient, their sleep schedule is shifted forward. Even when they manage to obtain 7 or 8 h sleep, they wake up early, as they have gone to sleep quite early. The prevalence of sleep disorders is higher among older adults. Loud snoring, which is more common in the elderly, can be a symptom of obstructive sleep apnoea, which puts a person at risk for cardiovascular diseases, headaches, memory loss, and depression. Restless legs syndrome and periodic limb movement disorder that disrupt sleep are more prevalent in older persons. Other common medical problems of old age such as hypertension diabetes mellitus, renal failure, respiratory diseases such as asthma, immune disorders, gastroesophageal reflux disease, physical disability, dementia, pain, depression, and anxiety are all associated with sleep disturbances.
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Affiliation(s)
- Kamalesh K Gulia
- Division of Sleep Research, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, India
| | - Velayudhan Mohan Kumar
- Division of Sleep Research, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, India
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Tighe CA, Bramoweth AD. Recent Developments in the Management of Insomnia in Later Life. CURRENT TREATMENT OPTIONS IN PSYCHIATRY 2018; 5:195-210. [PMID: 37560530 PMCID: PMC10411142 DOI: 10.1007/s40501-018-0145-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/11/2023]
Abstract
Purpose of review Insomnia impacts a significant proportion of older adults yet is not an inevitable consequence of aging and is amenable to intervention. The aim of this narrative review is to provide an overview of recent recommendations and empirical findings regarding the management of insomnia in older adults. Recent findings The treatment of insomnia with cognitive behavioral therapy for insomnia (CBT-I) continues to be empirically supported and the recommended first-line intervention for adults. Accumulating evidence indicates that other non-pharmacological therapies for insomnia, such as mindfulness-based therapies, light therapy, and physical activity interventions, as well as treatment delivered by non-clinician "sleep coaches" also positively impact insomnia symptoms. Finally, recent systematic reviews offer guidelines and recommendations for pharmacological management of insomnia. Summary CBT-I remains the recommended first-line treatment for insomnia across adult ages. There is a continued need to increase the availability and optimize the delivery of CBT-I and other therapies for older adults with insomnia to maximize treatment benefits. There is also evidence for some benefit of pharmacological agents to treat insomnia; however, these are not without risks, particularly in the geriatric population.
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Affiliation(s)
- Caitlan A. Tighe
- VISN 4 Mental Illness Research, Education and Clinical Center (MIRECC), VA Pittsburgh Healthcare System, Research Office Building (151R-U), University Drive C, Pittsburgh, PA, 15240, USA
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Adam D. Bramoweth
- VISN 4 Mental Illness Research, Education and Clinical Center (MIRECC), VA Pittsburgh Healthcare System, Research Office Building (151R-U), University Drive C, Pittsburgh, PA, 15240, USA
- Center for Health Equity Research and Promotion (CHERP), VA Pittsburgh Healthcare System, Pittsburgh, PA, USA
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Hughes JM, Song Y, Fung CH, Dzierzewski JM, Mitchell MN, Jouldjian S, Josephson KR, Alessi CA, Martin JL. Measuring Sleep in Vulnerable Older Adults: A Comparison of Subjective and Objective Sleep Measures. Clin Gerontol 2018; 41:145-157. [PMID: 29283797 PMCID: PMC5809246 DOI: 10.1080/07317115.2017.1408734] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
OBJECTIVES This study compared subjective (questionnaire) and objective (actigraphy) sleep assessments, and examined agreement between these methods, in vulnerable older adults participating in a Veterans Administration Adult Day Health Care (ADHC) program. METHODS 59 ADHC participants (95% male, mean age = 78 years) completed sleep questionnaires and 72 continuous hours of wrist actigraphy. Linear regression was used to examine agreement between methods and explore discrepancies in subjective/objective measures. RESULTS Disturbed sleep was common, yet there was no agreement between subjective and objective sleep assessment methods. Compared with objective measures, one-half of participants reported worse sleep efficiency (SE) on questionnaires while one-quarter over-estimated SE. Participants reporting worse pain had a greater discrepancy between subjective and objective SE. CONCLUSIONS Vulnerable older adults demonstrated unique patterns of reporting sleep quality when comparing subjective and objective methods. Additional research is needed to better understand how vulnerable older adults evaluate sleep problems. CLINICAL IMPLICATIONS Objective and subjective sleep measures may represent unique and equally important constructs in this population. Clinicians should consider utilizing both objective and subjective sleep measures to identify individuals who may benefit from behavioral sleep treatments, and future research is needed to develop and validate appropriate sleep assessments for vulnerable older adults.
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Affiliation(s)
- Jaime M Hughes
- a Center for Health Services Research in Primary Care , Durham VA Medical Center , Durham , North Carolina , USA
| | - Yeonsu Song
- b Geriatric Research, Education, and Clinical Center , VA Greater Los Angeles Healthcare System , Los Angeles , California , USA.,c David Geffen School of Medicine , University of California at Los Angeles , Los Angeles , California , USA
| | - Constance H Fung
- b Geriatric Research, Education, and Clinical Center , VA Greater Los Angeles Healthcare System , Los Angeles , California , USA.,c David Geffen School of Medicine , University of California at Los Angeles , Los Angeles , California , USA
| | - Joseph M Dzierzewski
- d Department of Psychology , Virginia Commonwealth University , Richmond , Virginia , USA
| | - Michael N Mitchell
- b Geriatric Research, Education, and Clinical Center , VA Greater Los Angeles Healthcare System , Los Angeles , California , USA
| | - Stella Jouldjian
- b Geriatric Research, Education, and Clinical Center , VA Greater Los Angeles Healthcare System , Los Angeles , California , USA
| | - Karen R Josephson
- b Geriatric Research, Education, and Clinical Center , VA Greater Los Angeles Healthcare System , Los Angeles , California , USA
| | - Cathy A Alessi
- b Geriatric Research, Education, and Clinical Center , VA Greater Los Angeles Healthcare System , Los Angeles , California , USA.,c David Geffen School of Medicine , University of California at Los Angeles , Los Angeles , California , USA
| | - Jennifer L Martin
- b Geriatric Research, Education, and Clinical Center , VA Greater Los Angeles Healthcare System , Los Angeles , California , USA.,c David Geffen School of Medicine , University of California at Los Angeles , Los Angeles , California , USA
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Della Monica C, Johnsen S, Atzori G, Groeger JA, Dijk DJ. Rapid Eye Movement Sleep, Sleep Continuity and Slow Wave Sleep as Predictors of Cognition, Mood, and Subjective Sleep Quality in Healthy Men and Women, Aged 20-84 Years. Front Psychiatry 2018; 9:255. [PMID: 29988413 PMCID: PMC6024010 DOI: 10.3389/fpsyt.2018.00255] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 05/24/2018] [Indexed: 12/16/2022] Open
Abstract
Sleep and its sub-states are assumed to be important for brain function across the lifespan but which aspects of sleep associate with various aspects of cognition, mood and self-reported sleep quality has not yet been established in detail. Sleep was quantified by polysomnography, quantitative Electroencephalogram (EEG) analysis and self-report in 206 healthy men and women, aged 20-84 years, without sleep complaints. Waking brain function was quantified by five assessments scheduled across the day covering objectively assessed performance across cognitive domains including sustained attention and arousal, decision and response time, motor and sequence control, working memory, and executive function as well as self-reports of alertness, mood and affect. Controlled for age and sex, self-reported sleep quality was negatively associated with number of awakenings and positively associated with the duration of Rapid Eye Movement (REM) sleep, but no significant associations with Slow Wave Sleep (SWS) measures were observed. Controlling only for age showed that associations between objective and subjective sleep quality were much stronger in women than in men. Analysis of 51 performance measures demonstrated that, after controlling for age and sex, fewer awakenings and more REM sleep were associated significantly with better performance on the Goal Neglect task, which is a test of executive function. Factor analysis of the individual performance measures identified four latent variables labeled Mood/Arousal, Response Time, Accuracy, and Visual Perceptual Sensitivity. Whereas Mood/Arousal improved with age, Response Times became slower, while Accuracy and Visual perceptual sensitivity showed little change with age. After controlling for sex and age, nominally significant association between sleep and factor scores were observed such that Response Times were faster with more SWS, and Accuracy was reduced where individuals woke more often or had less REM sleep. These data identify a positive contribution of SWS to processing speed and in particular highlight the importance of sleep continuity and REM sleep for subjective sleep quality and performance accuracy across the adult lifespan. These findings warrant further investigation of the contribution of sleep continuity and REM sleep to brain function.
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Affiliation(s)
- Ciro Della Monica
- Surrey Clinical Research Centre, Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
| | - Sigurd Johnsen
- Surrey Clinical Research Centre, Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
| | - Giuseppe Atzori
- Surrey Clinical Research Centre, Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
| | - John A Groeger
- Division of Psychology, Nottingham Trent University, Nottingham, United Kingdom
| | - Derk-Jan Dijk
- Surrey Clinical Research Centre, Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom.,Surrey Sleep Research Centre, Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
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Bauer IE, Diniz BS, Meyer TD, Teixeira AL, Sanches M, Spiker D, Zunta-Soares G, Soares JC. Increased reward-oriented impulsivity in older bipolar patients: A preliminary study. J Affect Disord 2018; 225:585-592. [PMID: 28886499 PMCID: PMC5626658 DOI: 10.1016/j.jad.2017.08.067] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 08/02/2017] [Accepted: 08/20/2017] [Indexed: 10/19/2022]
Abstract
OBJECTIVE Impulsivity is a well-established trait of bipolar disorder (BD) that persists across mood phases. It is, however, still unknown whether, in BD, impulsivity remains stable or varies in intensity over the lifespan. This cross-sectional study compared impulsive behavior in older euthymic BD patients and healthy individuals using a range of self-rating and behavioral measures of impulsivity. METHODS 28 BD patients (56.07 ± 4.08 years, 16 women) and 15 healthy controls (HC; 55.1 ± 3.95 years, 6 women) were administered the Barratt Impulsivity Scale (BIS) and selected tasks of the Cambridge Neuropsychological Test Automated Batter (CANTAB) reflecting impulsivity. Multivariate analysis of variance controlled for age compared impulsivity measures across BD and HC. RESULTS BD patients displayed poor decision making, risk taking, and increased delay aversion. Other measures of impulsivity such as response inhibition, sustained cognitive control, and BIS scores were, overall, comparable between BD and HC. CONCLUSIONS These preliminary findings suggest that, in BD, aspects of impulsivity related to reward-based decision making persist into late adulthood. Large scale, longitudinal studies are needed to evaluate the relationship of age to impulsivity over time, and explore the link between impulsivity and illness progression in elderly individuals with BD.
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Affiliation(s)
- Isabelle E. Bauer
- University of Texas Health Science Center at Houston, McGovern Medical School, Department of Psychiatry and Behavioral Sciences, 77054 Houston, TX, United States
| | - Breno Satler Diniz
- University of Texas Health Science Center at Houston, McGovern Medical School, Department of Psychiatry and Behavioral Sciences, 77054 Houston, TX, United States
| | - Thomas D. Meyer
- University of Texas Health Science Center at Houston, McGovern Medical School, Department of Psychiatry and Behavioral Sciences, 77054 Houston, TX, United States
| | - Antonio Lucio Teixeira
- University of Texas Health Science Center at Houston, McGovern Medical School, Department of Psychiatry and Behavioral Sciences, 77054 Houston, TX, United States
| | - Marsal Sanches
- University of Texas Health Science Center at Houston, McGovern Medical School, Department of Psychiatry and Behavioral Sciences, 77054 Houston, TX, United States,Archway Mental Health Services, 58502 Bismarck, ND, United States
| | - Danielle Spiker
- University of Texas Health Science Center at Houston, McGovern Medical School, Department of Psychiatry and Behavioral Sciences, 77054 Houston, TX, United States
| | - Giovana Zunta-Soares
- University of Texas Health Science Center at Houston, McGovern Medical School, Department of Psychiatry and Behavioral Sciences, 77054 Houston, TX, United States
| | - Jair C. Soares
- University of Texas Health Science Center at Houston, McGovern Medical School, Department of Psychiatry and Behavioral Sciences, 77054 Houston, TX, United States
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Fung CH, Veasey SC. Research Priorities in the Area of Sleep/Circadian Rhythm and Aging Research: Commentary on "Report and Research Agenda of the American Geriatrics Society and National Institute on Aging Bedside-to-Bench Conference on Sleep, Circadian Rhythms, and Aging: New Avenues for Improving Brain Health, Physical Health, and Functioning". Sleep 2018; 40:3827950. [PMID: 28510765 DOI: 10.1093/sleep/zsx065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Constance H Fung
- Geriatric Research, Education and Clinical Center and Sleep Center, VA Greater Los Angeles Healthcare System, Los Angeles, CA
| | - Sigrid C Veasey
- Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA.,Department of Medicine, University of Pennsylvania, Philadelphia, PA
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