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Zhu MQ, Oliveros H, Marín C, Mora-Plazas M, Villamor E. Middle childhood and adolescence sleep duration and behavior problems in adolescence. Dev Psychopathol 2024; 36:338-348. [PMID: 36373262 DOI: 10.1017/s0954579422001237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
We examined the associations of middle childhood and adolescence nighttime sleep duration with adolescence internalizing and externalizing behavior problems per the Youth Self-Report (YSR) and the Child Behavior Checklist (CBCL) questionnaires, in a cohort of 889 Colombian schoolchildren. We estimated adjusted differences with 95% confidence intervals (CI) in mean behavior problem t-scores in standardized units between recommended sleep duration categories and as a continuous exposure using multiple linear regression and restricted cubic spline models, respectively. Compared with sleep duration within recommendations, middle childhood sleep above recommendations was related to 4.6 (95% CI: 1.6, 7.6; p = .004) and 5.4 (95% CI: 1.2, 9.7; p = .01) adjusted units higher YSR and CBCL externalizing problem scores, respectively. In continuous exposure analyses, this association seemed restricted to children aged ≥11 years. Longer sleep, both in categories and as a continuous exposure, was also associated with increased CBCL internalizing problems. Results did not differ by sex or weekend/weekday sleep. Sleeping under recommendations in middle childhood was not significantly related to behavior problems; nevertheless, shorter sleep in adolescence, in both categorical and continuous scales, was significantly related to behavior problems. In conclusion, behavior problems in adolescence are associated with longer sleep in middle childhood and shorter sleep in adolescence.
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Affiliation(s)
- Mia Q Zhu
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - Henry Oliveros
- Facultad de Medicina, Universidad de La Sabana, Chía, Colombia
| | - Constanza Marín
- Facultad de Medicina, Universidad de La Sabana, Chía, Colombia
| | | | - Eduardo Villamor
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI, USA
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Ding X, Pan Y, Chen Y, Li Y. Association between dependency and long sleep duration among elderly people: a community-based study. Psychogeriatrics 2023; 23:789-799. [PMID: 37332148 DOI: 10.1111/psyg.12998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 05/22/2023] [Accepted: 06/06/2023] [Indexed: 06/20/2023]
Abstract
BACKGROUND Long sleep duration is a common sleep disorder among elderly people. Dependency increases with increasing age. This study aimed to assess the association between dependency and long sleep duration among elderly people. METHODS This study is a population-based cross-sectional study. A total of 1152 participants aged ≥ 60 years were selected from 26 locations in China by a complex multistage sampling design. Data were collected through face-to-face interviews. Sleep duration was measured using the Pittsburgh Sleep Quality Index. Dependency was assessed using Minnesota Multiphasic Personality Inventory-II. Hierarchical multiple linear regression analysis was used to evaluate the efficacy of sleep-related factors and psychological factors for sleep duration. Analysis of covariance and logistic regression analysis were performed to evaluate the association between the dependency score and sleep duration, and the strength of dependency effect on sleep duration. RESULTS A total of 1120 participants were valid for the analysis. Among them, 15.8% of participants had a dependency score ≥60 points. The results of hierarchical multiple linear regression analysis showed that sleep duration was positively associated with dependency scores. Analysis of covariance indicated a J-shaped association between dependency scores and sleep duration. The results of logistic regression analysis showed dependency was significantly associated with long sleep duration, and the odds ratio was 3.52 (95% CI, 1.87-6.63; P < 0.001). CONCLUSION Dependency was significantly associated with long sleep duration among elderly people. The results suggested that dependent intervention may be a strategy that needs urgent implementation to reduce long sleep duration among elderly people.
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Affiliation(s)
- XiWen Ding
- Department of Social Medicine, School of Public Health, Zhejiang University, Hangzhou, China
| | - YiYang Pan
- Department of Social Medicine, School of Public Health, Zhejiang University, Hangzhou, China
| | - Yuan Chen
- Department of Social Medicine, School of Public Health, Zhejiang University, Hangzhou, China
- Zhejiang Provincial People's Hospital, Hangzhou, China
| | - Ying Li
- Department of Social Medicine, School of Public Health, Zhejiang University, Hangzhou, China
- School of medicine, Zhejiang University, Hangzhou, China
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3
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Cai C, Atanasov S. Long Sleep Duration and Stroke-Highly Linked, Poorly Understood. Neurol Int 2023; 15:764-777. [PMID: 37489354 PMCID: PMC10366725 DOI: 10.3390/neurolint15030048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 06/20/2023] [Accepted: 06/21/2023] [Indexed: 07/26/2023] Open
Abstract
Stroke is one of the leading causes of disability and mortality. Both short and long sleep durations are associated with adverse health outcomes. Cross-sectional studies have shown an increased prevalence of stroke in long sleepers. Long sleep duration increases stroke incidence and mortality in prospective epidemiological studies. Accumulating evidence suggests that the magnitude of the association between sleep and stroke appears to be stronger for longer sleep than shorter sleep, yielding a J-shaped curve. Potential links between long sleep duration and stroke include increased incidence of diabetes and atrial fibrillation, elevated levels of inflammation, arterial stiffness, and blood pressure variability. Long sleep duration is a strong marker and a plausible risk factor for stroke and should be considered in future scoring for risk stratification and stroke prevention.
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Affiliation(s)
- Chumeng Cai
- Department of Neuroscience, College of Natural Sciences, The University of Texas at Austin, Austin, TX 78712-0805, USA
| | - Strahil Atanasov
- Division of Pulmonary Critical Care & Sleep Medicine, University of Texas Medical Branch, Galveston, TX 77555-0561, USA
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4
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Chen M, Lu C, Zha J. Long Sleep Duration Increases the Risk of All-Cause Mortality Among Community-Dwelling Older Adults With Frailty: Evidence From NHANES 2009-2014. J Appl Gerontol 2022; 42:1078-1088. [PMID: 36560922 DOI: 10.1177/07334648221147917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Objectives: The aim of this study was to determine the effect of sleep duration on all-cause mortality among older adults with frailty. Methods: The prospective cohort study included 5705 community participants aged 60 or above in the National Health and Nutrition Examination Survey (NHANES). Health indicators were selected in the NHANES to obtain the frailty index and sleep duration. The risk of all-cause mortality was estimated by a Cox proportional hazard model. Results: During the follow-up, long sleep duration was associated with higher all-cause mortality (adjusted HR = 1.28, 95% CI 1.03-1.59). The hazard of all-cause mortality was the lowest from the beginning of sleep until sleep duration reached 5.8 hours among older adults with frailty. Discussion: Long sleep duration was associated with higher all-cause mortality among older adults with frailty. There was a U-shaped relationship between sleep duration and all-cause mortality.
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Affiliation(s)
- Mingzhuang Chen
- Divison of Medical Affairs, 117556The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Chao Lu
- First Affiliated Hospital, 91594Anhui University of Science and Technology, Huainan, China
| | - Jingru Zha
- Office of Party, 117556The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
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5
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Noh JW, Kim J, Lee Y, Kwon YD. Factors Related to Oversleeping in Korean Young Adults, with a Focus on Sociodemographic Factors. Int J Environ Res Public Health 2022; 19:10485. [PMID: 36078200 PMCID: PMC9518058 DOI: 10.3390/ijerph191710485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/21/2022] [Accepted: 08/22/2022] [Indexed: 06/15/2023]
Abstract
Young adults the year after high school experience changes in lifestyle and circumstances and tend to experience more oversleeping. However, there are few studies on oversleeping in young adults. This study aims to identify the sociodemographic factors related to oversleeping among young adults in Korea using nationally representative data. This study analyzed self-reported and cross-sectional data in 2016 from a sample of 1876 participants from the Korean Children and Youth Panel Survey, which included respondents one year after high school graduation. Oversleeping was defined as sleeping 9 or more hours a day on average. Logistic regression models were analyzed to test a multivariate association between independent sociodemographic variables and oversleeping. Over one-tenth of young adults reported oversleeping. Oversleeping was associated with household income (OR = 0.99, p = 0.011) and smoking (OR = 1.52, p = 0.041). In addition, when compared to non-working college students, college students who were working (OR = 2.58, p = 0.021), non-students who were working (OR = 1.68, p = 0.048), and non-students who were not working (OR = 3.07, p < 0.001) were more likely to report oversleeping. Oversleeping among young adults was associated with major sociodemographic factors including household income (-), smoking (+), and academic and working status (+). These findings suggest the significant role of sociodemographic factors as predictors of oversleeping and emphasize the importance of examining various factors to achieve a better understanding of oversleeping in young adults.
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Affiliation(s)
- Jin-Won Noh
- Division of Health Administration, College of Software and Digital Healthcare Convergence, Yonsei University, Wonju 26493, Korea
| | - Jinseok Kim
- Department of Social Welfare, Seoul Women’s University, Seoul 01797, Korea
| | - Yejin Lee
- Department of Public Health, Graduate School, Korea University, Seoul 02841, Korea
| | - Young Dae Kwon
- Department of Humanities and Social Medicine, College of Medicine, Catholic Institute for Healthcare Management, The Catholic University of Korea, Seoul 06591, Korea
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Takaesu Y, Shimura A, Komada Y, Futenma K, Ishii M, Sugiura K, Watanabe K, Inoue Y. Association of sleep duration on workdays or free days and social jetlag with job stress. Psychiatry Clin Neurosci 2021; 75:244-249. [PMID: 34008308 DOI: 10.1111/pcn.13274] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 04/19/2021] [Accepted: 05/09/2021] [Indexed: 01/04/2023]
Abstract
AIM The aim of this study was to investigate the impact of sleep problems on job stress in office workers. METHODS This study included 4645 office workers from 29 companies who completed the study questionnaires between April 2017 and April 2019 in Japan. Sleep duration was assessed based on the participants' subjective sleep schedule on workdays and free days. The midpoint of sleep on free days (sleep-corrected) and social jetlag were calculated in accordance with the Munich Chronotype Questionnaire. To assess job stress, we used the 57-item Brief Job Stress Questionnaire. RESULTS Multivariate logistic regression analysis revealed that the following factors were significantly associated with high job stress in office workers: a sleep duration <6 h on workdays (OR = 1.77, 95% CI = 1.46-2.15, P < 0.001), a sleep duration <6 h on free days (OR = 1.40, 95% CI = 1.05-1.87, P = 0.022), a sleep duration of at least 8 h on free days (OR = 1.31, 95% CI = 1.06-1.60, P = 0.011), and more than 2 h of social jetlag (OR = 1.33, 95% CI = 1.04-1.70, P = 0.022). CONCLUSION This study suggests that insufficient sleep, long sleep durations on free days, and social jetlag may be associated with high job stress in office workers.
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Affiliation(s)
- Yoshikazu Takaesu
- Department of Neuropsychiatry, Kyorin University School of Medicine, Mitaka, Japan.,Department of Neuropsychiatry, University of the Ryukyus, Nishihara, Japan
| | - Akiyoshi Shimura
- Department of Psychiatry, Tokyo Medical University, Tokyo, Japan
| | - Yoko Komada
- Meiji Pharmaceutical University, Kiyose, Japan
| | - Kunihiro Futenma
- Department of Sleep Disorders, Ureshinogaoka Samariyabito Hospital, Okinawa, Japan
| | - Miho Ishii
- Department of Neuropsychiatry, Kyorin University School of Medicine, Mitaka, Japan
| | - Ko Sugiura
- Department of Economics, University of Houston, Houston, Texas, USA.,Department of R&D, Children and Future Co., Ltd., Tokyo, Japan
| | - Koichiro Watanabe
- Department of Neuropsychiatry, Kyorin University School of Medicine, Mitaka, Japan
| | - Yuichi Inoue
- Department of Psychiatry, Tokyo Medical University, Tokyo, Japan
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7
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Liu W, Zhang R, Tan A, Ye B, Zhang X, Wang Y, Zou Y, Ma L, Chen G, Li R, Moore JB. Long sleep duration predicts a higher risk of obesity in adults: a meta-analysis of prospective cohort studies. J Public Health (Oxf) 2019; 41:e158-e168. [PMID: 30107483 DOI: 10.1093/pubmed/fdy135] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 07/04/2018] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The connections between long sleep duration and obesity or weight gain warrant further examination. This meta-analysis aimed to evaluate whether long sleep duration was associated with the risk of obesity, weight gain, body mass index (BMI) change or weight change in adults. METHODS PubMed, Embase, Cochrane Library, Elsevier Science Direct, Science Online, MEDLINE and CINAHL were searched for English articles published before May 2017. A total of 16 cohort studies (n = 329 888 participants) from 8 countries were included in the analysis. Pooled relative risks (RR) or regression coefficients (β) with 95% confidence intervals (CI) were estimated. Heterogeneity and publication bias were tested, and sensitivity analysis was also performed. RESULTS We found that long sleep duration was associated with higher risk of obesity (RR [95% CI] = 1.04 [1.00-1.09], P = 0.037), but had no significant associations with weight gain, BMI change or weight change. Long sleep duration increased the risk of weight gain in three situations: among men, in studies with <5 years follow-up, and when sleep duration was 9 or more hours. CONCLUSIONS Long sleep duration was associated with risk of obesity in adults. More cohort studies with objective measures are needed to confirm this relationship.
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Affiliation(s)
- Wenjia Liu
- Department of Healthcare Management, School of Health Sciences, Wuhan University, 115 Donghu Road, Wuhan, China
| | - Rui Zhang
- College of Life Sciences, South-Central University for Nationalities, Wuhan, China
| | - Anran Tan
- Department of Healthcare Management, School of Health Sciences, Wuhan University, 115 Donghu Road, Wuhan, China
| | - Bo Ye
- Department of Healthcare Management, School of Health Sciences, Wuhan University, 115 Donghu Road, Wuhan, China
| | - Xinge Zhang
- Department of Healthcare Management, School of Health Sciences, Wuhan University, 115 Donghu Road, Wuhan, China
| | - Yueqiao Wang
- Department of Healthcare Management, School of Health Sciences, Wuhan University, 115 Donghu Road, Wuhan, China
| | - Yuliang Zou
- Department of Healthcare Management, School of Health Sciences, Wuhan University, 115 Donghu Road, Wuhan, China
| | - Lu Ma
- Department of Healthcare Management, School of Health Sciences, Wuhan University, 115 Donghu Road, Wuhan, China
| | - Guoxun Chen
- Department of Nutrition, the University of Tennessee, Knoxville, TN, USA
| | - Rui Li
- Department of Healthcare Management, School of Health Sciences, Wuhan University, 115 Donghu Road, Wuhan, China
| | - Justin B Moore
- Department of Family & Community Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC, USA
- Department of Epidemiology & Prevention, Wake Forest School of Medicine, Winston-Salem, NC, USA
- Department of Implementation Science, Wake Forest School of Medicine, Winston-Salem, NC, USA
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8
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Tempaku P, Hirotsu C, Mazzotti D, Xavier G, Maurya P, Brietzke E, Belangero S, Poyares D, Bittencourt L, Tufik S. Long Sleep Duration, Insomnia, and Insomnia With Short Objective Sleep Duration Are Independently Associated With Short Telomere Length. J Clin Sleep Med 2018; 14:2037-2045. [PMID: 30518442 DOI: 10.5664/jcsm.7532] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 08/31/2018] [Indexed: 12/30/2022]
Abstract
STUDY OBJECTIVES We aimed to determine the association between short telomere length, sleep parameters, and sleep disorders in an adult general population sample. METHODS As part of the EPISONO cohort (São Paulo, Brazil), 925 individuals answered questionnaires, underwent a full-night polysomnography and clinical assessment, and had peripheral blood collected for DNA extraction. Insomnia was diagnosed based on the Diagnostic and Statistical Manual of Mental Disorders, 4th edition; and obstructive sleep apnea was defined according to apnea-hypopnea index. For the objective insomnia phenotype, we combined insomnia diagnosis with total sleep time from polysomnography with a cutoff of 360 minutes, allowing the classification of six groups. Self-reported sleep duration was used to classify the individuals as short (< 6 hours), average (6 to 8 hours) and long (> 8 hours) sleepers. The leukocyte telomere length was measured using quantitative real-time polymerase chain reaction. Based on its distribution, we considered leukocyte telomere length < 10th percentile as short telomere and leukocyte telomere length ≥ 10th percentile as non-short telomere. RESULTS After adjusting for sex, age, and body mass index, only insomnia disorder (odds ratio [OR] = 2.654, 95% confidence interval [CI] = 1.025-6.873, P = .044), insomnia disorder total sleep time < 360 minutes (OR = 4.205, 95% CI = 1.097-16.117, P = .036) and long sleepers (OR = 2.177, 95% CI = 1.189- 3.987, P = .012) were associated with short telomere. CONCLUSIONS Our findings support the existence of an association among insomnia, insomnia phenotype, and self-reported long sleep duration with the maintenance of telomere length. COMMENTARY A commentary on this article appears in this issue on page 1975.
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Affiliation(s)
- Priscila Tempaku
- Department of Psychobiology, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Camila Hirotsu
- Department of Psychobiology, Universidade Federal de São Paulo, São Paulo, Brazil.,Center for Investigation and Research in Sleep, Department of Internal Medicine, Lausanne University Hospital, Lausanne, Switzerland
| | - Diego Mazzotti
- Center for Sleep and Circadian Neurobiology, University of Pennsylvania, Philadelphia
| | - Gabriela Xavier
- LINC-Interdisciplinary Laboratory of Clinical Neurosciences, Universidade Federal de São Paulo, São Paulo, Brazil.,Department of Morphology and Genetics, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Pawan Maurya
- Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, Brazil.,Department of Biochemistry, Central University of Haryana, Mahendergarh, India
| | - Elisa Brietzke
- Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Sintia Belangero
- LINC-Interdisciplinary Laboratory of Clinical Neurosciences, Universidade Federal de São Paulo, São Paulo, Brazil.,Department of Morphology and Genetics, Universidade Federal de São Paulo, São Paulo, Brazil.,Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Dalva Poyares
- Department of Psychobiology, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Lia Bittencourt
- Department of Psychobiology, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Sergio Tufik
- Department of Psychobiology, Universidade Federal de São Paulo, São Paulo, Brazil
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Matsui K, Takaesu Y, Inoue T, Inada K, Nishimura K. Effect of aripiprazole on non-24-hour sleep-wake rhythm disorder comorbid with major depressive disorder: a case report. Neuropsychiatr Dis Treat 2017; 13:1367-1371. [PMID: 28579782 PMCID: PMC5449127 DOI: 10.2147/ndt.s136628] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Patients with non-24-hour sleep-wake rhythm disorder (N24SWD) exhibit a sleep pattern that is asynchronous with the external light-dark cycle, typically involving a cycling, relapsing-remitting pattern of sleep disturbances, including nighttime insomnia and daytime sleepiness. Here, we report the case of a patient with N24SWD comorbid with major depressive disorder, who was successfully treated with a low dose of aripiprazole. CASE PRESENTATION A 47-year-old female presented with an 8-year complaint of difficulty falling asleep and waking up in the morning. The patient was diagnosed with major depressive disorder at the age of 35 years and was treated with various antidepressants since that time. At the age of 40 years, the patient's sleep-wake cycle began to extend without exacerbation of depressive symptoms. The patient was diagnosed with N24SWD at the age of 43 years. Ramelteon 8 mg/d and then melatonin 1 mg/d were administered, but these did not provide effective treatment. In January 2016, after treatment with aripiprazole 3 mg/d in the morning for 4 weeks, the patient's sleep-wake cycle became markedly synchronized to the environmental light-dark cycle. Her sleep-wake cycle remained synchronized when the same dose of aripiprazole was administered for at least 6 months. CONCLUSION Treatment-refractory asynchrony of the sleep-wake cycle in an N24SWD patient with depression was successfully treated with aripiprazole. Although the detailed mechanism of action is unclear, aripiprazole may be an appropriate treatment for patients with circadian rhythm sleep-wake disorders.
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Affiliation(s)
- Kentaro Matsui
- Department of Psychiatry, Tokyo Women’s Medical University
- Japan Somnology Center, Neuropsychiatric Research Institute
| | - Yoshikazu Takaesu
- Japan Somnology Center, Neuropsychiatric Research Institute
- Department of Psychiatry, Tokyo Medical University, Tokyo, Japan
| | - Takeshi Inoue
- Department of Psychiatry, Tokyo Medical University, Tokyo, Japan
| | - Ken Inada
- Department of Psychiatry, Tokyo Women’s Medical University
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10
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Affiliation(s)
- Tomoyuki Kawada
- Nippon Medical School, Tokyo, Japan (Department of Hygiene and Public Health).
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11
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Kim TJ, Kim CK, Kim Y, Jung S, Jeong HG, An SJ, Ko SB, Yoon BW. Prolonged sleep increases the risk of intracerebral haemorrhage: a nationwide case-control study. Eur J Neurol 2016; 23:1036-43. [PMID: 26945678 DOI: 10.1111/ene.12978] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Accepted: 01/18/2016] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND PURPOSE Although abnormal sleep duration is positively associated with increased risk for cardiovascular disease and mortality, the specific impact on intracerebral haemorrhage (ICH) risk remains unclear. The relationship between sleep duration and the risk of ICH was investigated in our study. METHODS A nationwide, multicentre matched case-control study was performed to investigate the risk factors for haemorrhagic stroke, using patients from 33 hospitals in Korea. In all, 490 patients with ICH and 980 age- and sex-matched controls were enrolled. Detailed information regarding sleep, sociodemographic factors, lifestyle and medical history before ICH onset was obtained using qualified structured questionnaires. Sleep duration was categorized and the adjusted odds ratios (ORs) and 95% confidence intervals (CIs) were estimated using a conditional logistic regression with 7 h as the reference duration. RESULTS The number of subjects with long sleep duration, more than 8 h, was significantly greater in the ICH group than in the control group (≥8 h, 30.4% vs. 22.6%, P = 0.002). After controlling for relevant confounding factors, longer sleep duration was found to be independently associated with the risk of ICH in a dose-response manner (8 h, OR 1.57, 95% CI 1.00-2.47; ≥9 h, OR 5.00, 95% CI 2.18-11.47). CONCLUSIONS Our study suggested that long sleep duration is positively associated with an increased ICH risk in a dose-dependent manner. Further studies on the relationship linking long sleep duration with increased risk of ICH are required.
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Affiliation(s)
- T J Kim
- Department of Neurology, Seoul National University Hospital, Seoul, South Korea
| | - C K Kim
- Department of Neurology, Seoul National University Hospital, Seoul, South Korea
| | - Y Kim
- Department of Neurology, Bucheon St Mary's Hospital, Gyeonggi-do, South Korea
| | - S Jung
- Department of Radiology, Seoul National University Bundang Hospital, Gyeonggi-do, Korea
| | - H-G Jeong
- Department of Neurology, Seoul National University Hospital, Seoul, South Korea
| | - S J An
- Department of Neurology, Seoul National University Hospital, Seoul, South Korea
| | - S-B Ko
- Department of Neurology, Seoul National University Hospital, Seoul, South Korea
| | - B-W Yoon
- Department of Neurology, Seoul National University Hospital, Seoul, South Korea
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12
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Ge B, Guo X. Short and long sleep durations are both associated with increased risk of stroke: a meta-analysis of observational studies. Int J Stroke 2014; 10:177-84. [PMID: 25366107 DOI: 10.1111/ijs.12398] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Accepted: 08/25/2014] [Indexed: 12/22/2022]
Abstract
BACKGROUND There is uncertainty about the relationship between sleep duration and stroke risk. AIM We aimed to clarify the relationship between sleep duration and risk of stroke by using epidemiological evidence. METHODS We searched MEDLINE and EMBASE to identify all studies that might be looking at the association between sleep duration and stroke, including both cohort and cross-sectional studies. Pooled hazard ratios (HRs) and odds ratios (ORs) were calculated through a random-effects model. RESULTS Our study included a total of 12 cohort studies and 6 cross-sectional studies. Pooled results from the cohort studies showed that short sleep duration was associated with a higher risk for stroke [HR, 1.13; 95% confidence interval (CI) 1.02-1.25], and that long sleep duration also increases the risk of having a stroke (HR, 1.40; 95% CI, 1.16-1.64). Results from cross-sectional studies confirmed the relationship between stroke and inappropriate sleep duration, either too little sleep or too much. For short sleep duration, the OR was 1.71 (1.39-2.02); for long sleep duration, the OR was 2.12 (1.51-2.73). CONCLUSION Both short and long sleep durations have a significant association with higher risk of stroke.
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Affiliation(s)
- Beihai Ge
- Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Department of Internal Medicine, People's Hospital of Chibi City, Chibi, China
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