1
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Poon K, Ho MSH, Tai APL, Leung MK, Chan MCM, Lau WKW. Mediating roles of sleep quality and resilience in the relationships between chronotypes and mental health symptoms. Sci Rep 2024; 14:5874. [PMID: 38467740 PMCID: PMC10928116 DOI: 10.1038/s41598-024-56688-w] [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: 11/23/2023] [Accepted: 03/09/2024] [Indexed: 03/13/2024] Open
Abstract
Sleep and mental health are intrinsically intertwined, but not every individual with problems sleeping develops a mental health disorder. This study examined the association among chronotypes, resilience, sleep quality and mental health symptoms amongst otherwise healthy individuals. Two hundred adults (Mage = 27.75 ± 5.11, 68% female) with no previous diagnosis of mental illness were recruited and filled in a set of questionnaires measuring chronotypes, sleep quality, depression and anxiety symptoms. The findings from the path analysis showed that the morning type had a statistically significant direct effect on a range of sleep quality indices. These included better subjective sleep quality, shortened sleep latency, and fewer daytime dysfunctions, as well as a higher level of resilience. However, it did not significantly affect depression and anxiety symptoms. In addition, the morning type had statistically significant indirect effects on a higher level of resilience and fewer depression and anxiety symptoms through the mediating effect of sleep quality indices. Findings from this study support that morning type is associated with better resilience and psychological health, which is mediated through better sleep quality.
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Affiliation(s)
- Kean Poon
- School of Education, The University of New South Wales, Sydney, Australia
| | - Mimi S H Ho
- Department of Special Education and Counselling, The Education University of Hong Kong, Hong Kong, China
| | - Alan P L Tai
- Department of Special Education and Counselling, The Education University of Hong Kong, Hong Kong, China
| | - Mei-Kei Leung
- Department of Counselling and Psychology, Hong Kong Shue Yan University, Hong Kong, China
| | - Meanne C M Chan
- Wofoo Joseph Lee Consulting and Counselling Psychology Research Centre, Lingnan University of Hong Kong, Room 213, LBY Building, 8 Castle Peak Road, Tuen Mun, Hong Kong, China.
| | - Way K W Lau
- Department of Health Sciences, Hong Kong Metropolitan University, Room F1229, 12/F, 1 Sheung Shing Street, Ho Man Tin, Kowloon, Hong Kong, China.
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2
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Hu H, Long Y, Song G, Chen S, Xu Z, Li Q, Wu Z. Dysfunction of Prkcaa Links Social Behavior Defects with Disturbed Circadian Rhythm in Zebrafish. Int J Mol Sci 2023; 24:ijms24043849. [PMID: 36835261 PMCID: PMC9961154 DOI: 10.3390/ijms24043849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 02/03/2023] [Accepted: 02/07/2023] [Indexed: 02/17/2023] Open
Abstract
Protein kinase Cα (PKCα/PRKCA) is a crucial regulator of circadian rhythm and is associated with human mental illnesses such as autism spectrum disorders and schizophrenia. However, the roles of PRKCA in modulating animal social behavior and the underlying mechanisms remain to be explored. Here we report the generation and characterization of prkcaa-deficient zebrafish (Danio rerio). The results of behavioral tests indicate that a deficiency in Prkcaa led to anxiety-like behavior and impaired social preference in zebrafish. RNA-sequencing analyses revealed the significant effects of the prkcaa mutation on the expression of the morning-preferring circadian genes. The representatives are the immediate early genes, including egr2a, egr4, fosaa, fosab and npas4a. The downregulation of these genes at night was attenuated by Prkcaa dysfunction. Consistently, the mutants demonstrated reversed day-night locomotor rhythm, which are more active at night than in the morning. Our data show the roles of PRKCA in regulating animal social interactions and link the social behavior defects with a disturbed circadian rhythm.
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Affiliation(s)
- Han Hu
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), College of Fisheries, Research Center of Fishery Resources and Environment, Southwest University, Chongqing 400715, China
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Yong Long
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
- Correspondence: (Y.L.); (Z.W.); Tel.: +86-27-6878-0100 (Y.L.); +86-23-6836-6018 (Z.W.)
| | - Guili Song
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Shaoxiong Chen
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
- College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China
| | - Zhicheng Xu
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), College of Fisheries, Research Center of Fishery Resources and Environment, Southwest University, Chongqing 400715, China
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Qing Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Zhengli Wu
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), College of Fisheries, Research Center of Fishery Resources and Environment, Southwest University, Chongqing 400715, China
- Correspondence: (Y.L.); (Z.W.); Tel.: +86-27-6878-0100 (Y.L.); +86-23-6836-6018 (Z.W.)
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3
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Sun X, Yu W, Wang M, Hu J, Li Y. Association between rest-activity rhythm and cognitive function in the elderly: The U.S. National Health and Nutrition Examination Survey, 2011-2014. Front Endocrinol (Lausanne) 2023; 14:1135085. [PMID: 36967786 PMCID: PMC10034093 DOI: 10.3389/fendo.2023.1135085] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 01/30/2023] [Indexed: 03/12/2023] Open
Abstract
BACKGROUND Circadian rhythm plays an essential role in various physiological and pathological processes related to cognitive function. The rest-activity rhythm (RAR) is one of the most prominent outputs of the circadian system. However, little is known about the relationships between RAR and different domains of cognitive function in older adults. The purpose of this study was to examine the relationships between RAR and various fields of cognitive function in older Americans. METHODS This study included a total of 2090 older adults ≥ 60 years old from the National Health and Nutrition Examination Survey (NHANES) in 2011-2014. RAR parameters were derived from accelerometer recordings. Cognitive function was assessed using the word learning subtest developed by the Consortium to Establish a Registry for Alzheimer's disease (CERAD W-L), the Animal Fluency Test (AFT) and the Digital Symbol Substitution Test (DSST). Linear regression was used to determine the relationships between RAR parameters (IS, IV, RA, L5, M10) and cognitive function scores (CERAD W-L, AFT, DSST). RESULTS After adjusting for potential confounders, lower IS and M10 were associated with lower CERAD W-L scores (P=0.033 and P=0.002, respectively). Weaker RA and higher L5 were associated with lower AFT scores (P<0.001 and P=0.001, respectively). And lower IS, RA, and higher L5 were associated with lower DSST scores (P=0.019, P<0.001 and P<0.001, respectively). In addition, the results of sensitivity analysis were similar to those of our main analyses. The main correlation results between the RAR indicators and cognitive function were robust. CONCLUSIONS This study suggested that the weakened and/or disrupted RAR was associated with cognitive decline in different domains in Americans over the age of 60.
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Affiliation(s)
- Xinyi Sun
- Department of Neurology, Peking University Shenzhen Hospital, Shenzhen, China
- National Key Discipline, Department of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin, China
| | - Weiwei Yu
- Department of Neurology, Peking University Shenzhen Hospital, Shenzhen, China
| | - Mingsi Wang
- Department of Health Economics, College of Health Management of Harbin Medical University, Harbin, China
- *Correspondence: Yunong Li, ; Jun Hu, ; Mingsi Wang,
| | - Jun Hu
- Department of Neurology, Peking University Shenzhen Hospital, Shenzhen, China
- *Correspondence: Yunong Li, ; Jun Hu, ; Mingsi Wang,
| | - Yunong Li
- Department of Neurology, Peking University Shenzhen Hospital, Shenzhen, China
- *Correspondence: Yunong Li, ; Jun Hu, ; Mingsi Wang,
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4
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Chen XQ, Jiang XM, Zheng QX, Wang HW, Xue H, Pan YQ, Liao YP, Gao XX. Prevalence and risk factors of sub-health and circadian rhythm disorder of cortisol, melatonin, and temperature among Chinese midwives. Front Public Health 2023; 11:1142995. [PMID: 36875391 PMCID: PMC9975388 DOI: 10.3389/fpubh.2023.1142995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 01/23/2023] [Indexed: 02/17/2023] Open
Abstract
Objective This study aimed to explore the influencing factors of sub-health and circadian rhythm disorder among midwives and whether circadian rhythm disorder was associated with sub-health. Methods A multi-center cross-sectional study was conducted among 91 Chinese midwives from six hospitals through cluster sampling. Data were collected by demographic questionnaire, Sub-Health Measurement Scale version 1.0, and circadian rhythm detection. Minnesota single and population mean cosine methods were used to analyze the rhythm of cortisol, melatonin, and temperature. Binary logistic regression, nomograph model, and forest plot were performed to identify variables associated with midwives' sub-health. Results There were 65 midwives with sub-health and 61, 78, and 48 midwives with non-validation of circadian rhythms of cortisol, melatonin, and temperature among 91 midwives, respectively. Midwives' sub-health was significantly related to age, duration of exercise, weekly working hours, job satisfaction, cortisol rhythm, and melatonin rhythm. Based on these six factors, the nomogram was presented with significant predictive performance for sub-health. Furthermore, cortisol rhythm was significantly associated with physical, mental, and social sub-health, whereas melatonin rhythm was significantly correlated with physical sub-health. Conclusion Sub-health and circadian rhythm disorder were generally common among midwives. Nurse administrators are supposed to pay attention and take measures to prevent sub-health and circadian rhythm disorder among midwives.
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Affiliation(s)
- Xiao-Qian Chen
- Fujian Maternity and Child Health Hospital College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian, China.,Fujian Obstetrics and Gynecology Hospital, Fuzhou, Fujian, China
| | - Xiu-Min Jiang
- Fujian Maternity and Child Health Hospital College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian, China
| | - Qing-Xiang Zheng
- Fujian Maternity and Child Health Hospital College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian, China.,Fujian Obstetrics and Gynecology Hospital, Fuzhou, Fujian, China
| | - Hai-Wei Wang
- Fujian Maternity and Child Health Hospital College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian, China
| | - Heng Xue
- Fujian Maternity and Child Health Hospital College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian, China
| | - Yu-Qing Pan
- School of Nursing, Fujian Medical University, Fuzhou, Fujian, China
| | - Yan-Ping Liao
- School of Nursing, Fujian Medical University, Fuzhou, Fujian, China
| | - Xiao-Xia Gao
- School of Nursing, Fujian Medical University, Fuzhou, Fujian, China
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5
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Gangopadhyay A, Ibrahim R, Theberge K, May M, Houseknecht KL. Non-alcoholic fatty liver disease (NAFLD) and mental illness: Mechanisms linking mood, metabolism and medicines. Front Neurosci 2022; 16:1042442. [PMID: 36458039 PMCID: PMC9707801 DOI: 10.3389/fnins.2022.1042442] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 10/21/2022] [Indexed: 09/26/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease in the world and one of the leading indications for liver transplantation. It is one of the many manifestations of insulin resistance and metabolic syndrome as well as an independent risk factor for cardiovascular disease. There is growing evidence linking the incidence of NAFLD with psychiatric illnesses such as schizophrenia, bipolar disorder and depression mechanistically via genetic, metabolic, inflammatory and environmental factors including smoking and psychiatric medications. Indeed, patients prescribed antipsychotic medications, regardless of diagnosis, have higher incidence of NAFLD than population norms. The mechanistic pharmacology of antipsychotic-associated NAFLD is beginning to emerge. In this review, we aim to discuss the pathophysiology of NAFLD including its risk factors, insulin resistance and systemic inflammation as well as its intersection with psychiatric illnesses.
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Affiliation(s)
| | | | | | | | - Karen L. Houseknecht
- Department of Biomedical Sciences, College of Osteopathic Medicine, University of New England, Biddeford, ME, United States
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6
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Alves Facundo L, Brant VM, Guerreiro RC, Andrade HDA, Louzada FM, Silva A, Mello MTD. Sleep regularity in athletes: Comparing sex, competitive level and sport type. Chronobiol Int 2022; 39:1381-1388. [PMID: 35950541 DOI: 10.1080/07420528.2022.2108716] [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: 11/03/2022]
Abstract
This study aims to describe the athletes' sleep regularity using the Sleep Regularity Index (SRI) and determine whether factors, such as sex, competitive level and sport type, could affect the sleep/wake rhythm. It is a descriptive, cross-sectional study consisting of 172 athletes (25 ± 7 y old; 45 women). Seventy-three competed in team sports and 99 in individual sports. Furthermore, 56 competed in the international level, 95 in the national and 21 in the regional. We recorded the SRI values for at least 5 d via continuous actigraphy. We recorded a mean SRI value of 73 ± 12. We found no significant differences between athletes' sleep parameters in relation to sleep regularity. Furthermore, SRI data showed no correlations (Spearman's ρ) with sleep parameters, bed time and wake time. Female athletes (p = 0.001) and individual sport athletes (p = 0.001) reported better sleep regularity than their counterparts. International-level athletes reported better sleep regularity than those in other competitive levels (national: p = 0.001; regional: p = 0.024). Our study showed that international level athletes, female athletes and individual sport athletes reported better sleep regularity. Additionally, SRI data showed no correlation with athletes' sleep parameters, bed and wake time.
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Affiliation(s)
- Lucas Alves Facundo
- Center for Studies in Psychobiology and Exercise, Federal University of Minas Gerais, Belo Horizonte, Brazil.,Sports Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Valdênio Martins Brant
- Center for Studies in Psychobiology and Exercise, Federal University of Minas Gerais, Belo Horizonte, Brazil.,Sports Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Renato Carvalho Guerreiro
- Center for Studies in Psychobiology and Exercise, Federal University of Minas Gerais, Belo Horizonte, Brazil.,Sports Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Henrique de Araújo Andrade
- Center for Studies in Psychobiology and Exercise, Federal University of Minas Gerais, Belo Horizonte, Brazil.,Sports Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | | | - Andressa Silva
- Center for Studies in Psychobiology and Exercise, Federal University of Minas Gerais, Belo Horizonte, Brazil.,Sports Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Marco Túlio de Mello
- Center for Studies in Psychobiology and Exercise, Federal University of Minas Gerais, Belo Horizonte, Brazil.,Sports Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
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7
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Mazri FH, Manaf ZA, Shahar S, Mat Ludin AF, Abdul Basir SM. Development and Evaluation of Integrated Chrono-Nutrition Weight Reduction Program among Overweight/Obese with Morning and Evening Chronotypes. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19084469. [PMID: 35457337 PMCID: PMC9029858 DOI: 10.3390/ijerph19084469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 03/23/2022] [Accepted: 03/24/2022] [Indexed: 12/07/2022]
Abstract
This paper describes the development of an integrated chrono-nutrition weight reduction program and the evaluation of the attendance, retention, satisfaction and compliance towards the chrono-nutrition components among morning and evening chronotypes for overweight/obese non-shift workers. The present study was conducted in two phases: Phase I was composed of needs assessments on the chronotypes’ dietary patterns and chrono-nutrition through a scoping review and integrating the chrono-nutrition components (temporal eating pattern, meal timing and sleeping habits) alongside the existing weight reduction module, SLIMSHAPE™. Phase II consisted of a feasibility study to evaluate the integrated chrono-nutrition weight reduction program (SLIMSHAPE™ Chrono). A total of 91 overweight/obese non-shift workers participated in the 12-week weight reduction program (Age: 39.6 ± 6.3 years; 74.7% women; BMI: 31.2 ± 4.5 kg/m2). Low attrition rate was recorded, with 85 participants (93.4%) completing the pre- and post-intervention assessments. Overall, morning and evening chronotypes had increased their % energy intake in the early eating window (MT: 64.8 vs. 67.2%, ET: 62.7 vs. 65.6%, Mean difference (MD): 2.8, 95%CI: 0.3, 5.1, p = 0.028) and reduced their intake in the late eating window (MT: 35.2 vs. 32.8%, ET: 37.3 vs. 34.4%, MD: −2.8, 95%CI: −5.1, −0.3, p = 0.028) and earlier midpoint of eating (MT: 14:02 vs. 13:49; ET: 14:27 vs. 14:18, 95%CI: −0.4, −0.02, p = 0.029) and had a reduced night eating syndrome score (MT: 10.0 vs. 8.9; ET: 10.7 vs. 8.9, MD: −1.5, 95%CI: −2.5, −0.5, p = 0.004). There was no significant change in the first (MT: 08:12 vs. 08:04, ET: 08:24 vs. 08:22, MD: −0.1, 95%CI: −0.2, 0.03, p = 0.170) and last mealtime (MT: 19:52 vs. 19:33, ET: 20:29 vs. 20:14, MD: −0.3, 95%CI: −0.6, −0.04, p = 0.081), eating duration (MT: 11.7 vs. 11.5 h, ET: 12.1 vs. 11.9 h, MD: −0.2, 95%CI: −0.6, 0.2, p = 0.251) and the elapse time between sleep onset and last meal (MT: 3.1 vs. 3.5 h, ET: 3.5 vs. 3.2 h, MD: 0.1, 95%CI: −0.3, 0.4, p = 0.678). In terms of sleep, evening chronotypes increased their sleep duration (MD: 0.8 h, 95% CI: 0.4, 1.2, p < 0.001) and reduced social jetlag (MD: 19 min, 95% CI: 1.7, 36.3, p = 0.031) post-intervention compared to morning chronotypes. The integrated chrono-nutrition weight reduction program among morning and evening chronotypes improved the temporal pattern of energy intake, meal timing, night eating syndrome and sleep habits post-intervention. The chrono-nutrition practice could be a potentially modifiable behavior as an adjunct strategy in weight management.
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Affiliation(s)
- Fatin Hanani Mazri
- Dietetic Program and Centre for Healthy Aging and Wellness, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia; (F.H.M.); (S.S.); (S.M.A.B.)
| | - Zahara Abdul Manaf
- Dietetic Program and Centre for Healthy Aging and Wellness, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia; (F.H.M.); (S.S.); (S.M.A.B.)
- Correspondence:
| | - Suzana Shahar
- Dietetic Program and Centre for Healthy Aging and Wellness, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia; (F.H.M.); (S.S.); (S.M.A.B.)
| | - Arimi Fitri Mat Ludin
- Biomedical Science Program and Centre for Healthy Aging and Wellness, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia;
| | - Siti Munirah Abdul Basir
- Dietetic Program and Centre for Healthy Aging and Wellness, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia; (F.H.M.); (S.S.); (S.M.A.B.)
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8
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Koreki A, Kusudo K, Suzuki H, Nozaki S, Onaya M, Bowes A, Sado M. Are Analogue or Digital Clocks Friendlier for People Living with Dementia? Dement Geriatr Cogn Dis Extra 2021; 11:207-212. [PMID: 34703454 PMCID: PMC8460955 DOI: 10.1159/000518350] [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: 07/01/2021] [Accepted: 07/04/2021] [Indexed: 11/28/2022] Open
Abstract
Background In ageing population, it is desirable to reduce the impact of cognitive decline on daily life. While various types of dementia-friendly environments have been proposed, the question still remains regarding whether analogue or digital clocks are friendlier for people with dementia. Methods In clinical practice, we normally use our original clock reading test (10 analogue and 10 digital clocks) to assess patients' ability to read a clock. In the present study, a retrospective medical record survey was conducted. Fifty-five participants who had done the test were identified. The result of the test was compared between analogue and digital clocks. Additionally, to assess specific ability to read analogue clocks, an “analogue-digital gap” was defined as the difference between patients' performance for analogue and digital clocks. Univariate and multivariate analyses were conducted to detect significant factors associated with reading ability specific to analogue clocks. Results The analogue clock proved less readable than the digital clock, even after adjusting for MMSE total score (p = 0.003). Multivariate analysis revealed reading ability of the analogue clock was significantly associated with MMSE calculation and clock drawing test (p = 0.009 and 0.040, respectively). Conclusions In the present study, the digital clock was friendlier than the analogue clock for patients with dementia. Compared to the digital clock, reading analogue clocks might require more widespread cognition, such as working memory and visuospatial processing. While our finding was a general tendency, and individual assessment is necessary, it might help the development of personalized environmental adjustments.
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Affiliation(s)
- Akihiro Koreki
- Department of Psychiatry, National Hospital Organization Shimofusa Psychiatric Medical Center, Chiba, Japan
| | - Keisuke Kusudo
- Department of Psychiatry, National Hospital Organization Shimofusa Psychiatric Medical Center, Chiba, Japan
| | - Hisaomi Suzuki
- Department of Psychiatry, National Hospital Organization Shimofusa Psychiatric Medical Center, Chiba, Japan
| | - Shoko Nozaki
- Department of Psychiatry, National Hospital Organization Shimofusa Psychiatric Medical Center, Chiba, Japan
| | - Mitsumoto Onaya
- Department of Psychiatry, National Hospital Organization Shimofusa Psychiatric Medical Center, Chiba, Japan
| | - Alison Bowes
- Faculty of Social Sciences, University of Stirling, Stirling, United Kingdom
| | - Mitsuhiro Sado
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
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9
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Kim M, Liotta EM, Maas MB, Braun RI, Garcia-Canga B, Ganger DR, Ladner DP, Reid KJ, Zee PC. Rest-activity rhythm disturbance in liver cirrhosis and association with cognitive impairment. Sleep 2021; 44:6047598. [PMID: 33367862 DOI: 10.1093/sleep/zsaa288] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 11/20/2020] [Indexed: 11/12/2022] Open
Abstract
Cognitive impairment and disturbed sleep-wake rhythms are disabling complications of liver cirrhosis, yet there is limited understanding of how they are related. We tested the hypothesis that alterations of sleep, rest-activity, and light exposure patterns are associated with worse cognition in cirrhosis. A total of 54 ambulatory adult patients with cirrhosis and 41 age-/gender-matched healthy controls wore wrist actigraphy for rest-activity and light measurements and completed Patient-Reported Outcomes Measurement Information System sleep instruments for self-reported sleep quality. We used standard nonparametric descriptors to characterize rest-activity and light patterns, and wake after sleep onset and sleep efficiency to assess objective sleep quality. The NIH Toolbox cognition battery was used for objective cognitive evaluation using T-scores from a demographically adjusted population reference. Spearman's correlation and multivariable models were used to explore associations between measures of cognition, sleep, rest-activity, and light. Cognition was significantly impaired in cirrhosis patients. Sleep quality was worse in cirrhosis patients by subjective and objective measures compared with controls. Cirrhosis patients exhibited fragmented and dampened rest-activity rhythms, lower daytime and higher nighttime light exposure compared with controls. Worse working memory and processing speed was associated with lower daytime activity level, higher rest-activity fragmentation, lower day-to-day stability, and greater nocturnal light exposure. No association was found between cognition and sleep quality. Rest-activity fragmentation and abnormal light exposure patterns are common in patients with liver disease and are associated with the severity of cognitive impairment. Further research is needed to investigate the effects of timed bright light and exercise intervention on cognitive function in patients with liver disease.
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Affiliation(s)
- Minjee Kim
- Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL
- Center for Circadian and Sleep Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL
- Northwestern University Transplant Outcomes Research Collaborative (NUTORC), Comprehensive Transplant Center (CTC), Feinberg School of Medicine, Chicago, IL
| | - Eric M Liotta
- Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL
- Northwestern University Transplant Outcomes Research Collaborative (NUTORC), Comprehensive Transplant Center (CTC), Feinberg School of Medicine, Chicago, IL
- Division of Transplant, Department of Surgery, Northwestern Medicine, Chicago, IL
| | - Matthew B Maas
- Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL
- Center for Circadian and Sleep Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Rosemary I Braun
- Center for Circadian and Sleep Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL
- Biostatistics Division, Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL
- Department of Engineering Sciences and Applied Mathematics, Northwestern University, Evanston, IL
| | - Blas Garcia-Canga
- Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Daniel R Ganger
- Northwestern University Transplant Outcomes Research Collaborative (NUTORC), Comprehensive Transplant Center (CTC), Feinberg School of Medicine, Chicago, IL
- Division of Transplant, Department of Surgery, Northwestern Medicine, Chicago, IL
- Department of Medicine, Northwestern Medicine, Chicago, IL
| | - Daniela P Ladner
- Northwestern University Transplant Outcomes Research Collaborative (NUTORC), Comprehensive Transplant Center (CTC), Feinberg School of Medicine, Chicago, IL
- Division of Transplant, Department of Surgery, Northwestern Medicine, Chicago, IL
- Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Kathryn J Reid
- Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL
- Center for Circadian and Sleep Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Phyllis C Zee
- Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL
- Center for Circadian and Sleep Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL
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10
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Stefani O, Cajochen C. Should We Re-think Regulations and Standards for Lighting at Workplaces? A Practice Review on Existing Lighting Recommendations. Front Psychiatry 2021; 12:652161. [PMID: 34054611 PMCID: PMC8155670 DOI: 10.3389/fpsyt.2021.652161] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 04/14/2021] [Indexed: 11/13/2022] Open
Abstract
Nowadays lighting projects often include temporal variations of the light, both spectrally and in terms of intensity to consider non-visual effects of light on people. However, as of today there are no specific regulations. Compliance with common lighting standards that address visual aspects of light, often means that only little non-visually effective light reaches the eye. In this practice review we confront existing regulations and standards on visual lighting aspects with new recommendations on non-visual aspects and highlight conflicts among them. We conclude with lighting recommendations that address both aspects.
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Affiliation(s)
- Oliver Stefani
- Centre for Chronobiology, Psychiatric Hospital of the University of Basel, Basel, Switzerland
- Transfaculty Research Platform Molecular and Cognitive Neurosciences (MCN), University of Basel, Basel, Switzerland
| | - Christian Cajochen
- Centre for Chronobiology, Psychiatric Hospital of the University of Basel, Basel, Switzerland
- Transfaculty Research Platform Molecular and Cognitive Neurosciences (MCN), University of Basel, Basel, Switzerland
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