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Patel SR, Sawyer AM, Gottlieb DJ. Con: can comparing adherent to non-adherent patients provide useful estimates of the effect of continuous positive airway pressure? Sleep 2024; 47:zsae063. [PMID: 38451903 DOI: 10.1093/sleep/zsae063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 02/26/2024] [Indexed: 03/09/2024] Open
Affiliation(s)
- Sanjay R Patel
- Division of Pulmonary Allergy, Critical Care and Sleep Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Amy M Sawyer
- Department of Biobehavioral Health Sciences, University of Pennsylvania School of Nursing, Philadelphia, PA, USA
| | - Daniel J Gottlieb
- Medical Service, VA Boston Healthcare System, and Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham & Women's Hospital, Boston, MA, USA
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Cao Y, Feng Y, Xia N, Zhang JC. Evaluating the impact of shift work on the risk of cardiometabolic disease: A Mendelian randomization study. Nutr Metab Cardiovasc Dis 2024:S0939-4753(24)00307-7. [PMID: 39271386 DOI: 10.1016/j.numecd.2024.08.010] [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] [Received: 05/23/2024] [Revised: 08/13/2024] [Accepted: 08/15/2024] [Indexed: 09/15/2024]
Abstract
BACKGROUND AND AIMS Evidence is increasingly suggesting that shift work is a risk factor for cardiometabolic disease. However, the causal relationship between shift work and cardiometabolic disease is not yet fully understood. In this study, we employed two-sample Mendelian randomization (MR) to investigate the causal relationship between shift work and the risk of cardiometabolic outcomes. METHODS AND RESULTS Genome-wide association study (GWAS) statistics for shift work were obtained from the UK Biobank. Mendelian randomization analyses were conducted to explore the causal effects of shift work on cardiometabolic outcomes, using single-nucleotide polymorphisms (SNPs) as instrumental variables. The results suggested a causal effect between shift work and body mass index, body fat percentage, triglycerides, high-density lipoprotein, type 2 diabetes, hypertension, and cardiorespiratory fitness. After correcting for multiple tests, only body mass index and high-density lipoprotein showed significant associations. No causal effects were found between shift work and overweight, obesity, total cholesterol, low-density lipoprotein, fasting glucose, 2-h glucose, fasting insulin, coronary artery disease, myocardial infarction, heart failure, atrial fibrillation, or ischemic stroke. CONCLUSION This MR study provides genetic evidence for a suggestive causal link between shift work and certain cardiometabolic outcomes. Our research may have the significance of providing insight into public hygiene to improve the understanding of shift work and cardiometabolic disease risk. Further experimental studies are needed to confirm our findings.
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Affiliation(s)
- Ye Cao
- Department of Cardiology, Fujian Provincial Hospital, Fuzhou University Affiliated Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou 350001, Fujian, PR China; Department of Cardiology, Renmin Hospital, Hubei University of Medicine, Shiyan 442000, Hubei, PR China
| | - Yi Feng
- Department of Cardiology, Renmin Hospital, Hubei University of Medicine, Shiyan 442000, Hubei, PR China
| | - Nan Xia
- Department of Cardiology, Renmin Hospital, Hubei University of Medicine, Shiyan 442000, Hubei, PR China
| | - Jian-Cheng Zhang
- Department of Cardiology, Fujian Provincial Hospital, Fuzhou University Affiliated Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou 350001, Fujian, PR China.
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Soltanzadeh A, Eyvazlou M, Mohammad-Ghasemi M, Sadeghi-Yarandi M, Rahimkhani M, Ghasemi N, Bonyadi M, Sadeghi-Yarandi M. Investigating the relationship between shift work schedule and blood and metabolic parameters: a 10-years retrospective cohort study. Sci Rep 2024; 14:17297. [PMID: 39068300 PMCID: PMC11283525 DOI: 10.1038/s41598-024-68378-8] [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: 04/05/2024] [Accepted: 07/23/2024] [Indexed: 07/30/2024] Open
Abstract
Shift work has become increasingly common in modern society. Shift work has been associated with a range of negative health outcomes. Therefore, this 10-years retrospective cohort study, aimed to investigate the relationship between shift work and blood and metabolic parameters. This retrospective cohort study was conducted in a metal parts manufacturing industry in 2023. In this study, 204 shift workers and 204 day workers were examined. All the studied blood and metabolic parameters were collected by reviewing the medical records of all participants during a 10-years period (2013-2022). Moreover, the amounts of physical, chemical, and ergonomics harmful agents in the work environment were investigated. All the collected data were analyzed using SPSS version 25.0. The values of Body Mass Index (BMI), Red Blood Cell Count (RBC), Platelets Count (PLT), Thyroid-Stimulating Hormone Level (TSH), Fasting Blood Sugar Level (FBS), Creatinine, Triglyceride (TG), Liver Enzymes level (SGOT and SGPT), and Systolic Blood Pressure (SBP) were higher among the shift work employees, and a significant difference was observed between the values of these parameters between the two groups. The results of logistic regression showed that the highest effect of shift work was observed on the parameters of FBS, TG, SGPT, TSH, Physical activity, BMI, Sleep duration, PLT, and Sleep quality with beta coefficient values of 0.49, 0.33, 0.29, 0.29, 0.20, 0.18, 0.14, 0.13 and, 0.11, respectively (p-value < 0.01). The present study contributes to a growing body of evidence that blood and metabolic factors are likely to be influenced by shift work. These findings have important implications for policy makers, highlighting the need for interventions to mitigate the negative health effects of shift work on workers.
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Affiliation(s)
- Ahmad Soltanzadeh
- Department of Occupational Health, School of Public Health, Qom University of Medical Sciences, Qom, Iran
| | - Meysam Eyvazlou
- Department of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mostafa Mohammad-Ghasemi
- Department of Environmental Science and Engineering, West Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Mansoureh Sadeghi-Yarandi
- Department of Counseling, Faculty of Humanities, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Monireh Rahimkhani
- Lab Medical Sciences Department, Allied Medical Sciences Faculty, Tehran University of Medical Sciences, Tehran, Iran
| | - Neda Ghasemi
- Department of Ergonomics, Faculty of Health, Yazd University of Medical Sciences, Yazd, Iran
| | - Mojdeh Bonyadi
- Clinical Research Development Center, Imam Reza Hospital, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mohsen Sadeghi-Yarandi
- Department of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
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Guo Y, Lv L, Gao H, Feng R, Guo M. Causal relationship between breakfast skipping and myocardial infarction: Two-sample Mendelian randomization. Medicine (Baltimore) 2024; 103:e38895. [PMID: 39058860 PMCID: PMC11272345 DOI: 10.1097/md.0000000000038895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Accepted: 06/20/2024] [Indexed: 07/28/2024] Open
Abstract
While observational studies suggest a connection between skipping breakfast and myocardial infarction (MI), the causal nature of this relationship is unclear. This study aims to investigate the genetic causal relationships between breakfast skipping and MI through Mendelian randomization (MR). Employing genetic data from a public genome-wide association study, this research focuses on genetic variations linked to breakfast skipping and MI. The primary analytical method was the inverse variance-weighted approach, complemented by additional methods like MR-Egger, weighted median, and mode analyses. It also includes heterogeneity and horizontal pleiotropy tests such as the Cochrane Q test, MR-Egger intercept, and MR-PRESSO tests, with a leave-one-out analysis for enhanced sensitivity assessment reliability. The study discovered a notable association between breakfast skipping and an increased risk of MI (odds ratios: 1.34, 95% confidence intervals: 1.03-1.76, P = .027). The test revealed no heterogeneity or multiplicity, and the sensitivity analysis confirmed the robustness of the results. Our MR analysis suggests that habitual breakfast skipping might elevate the likelihood of MI, underlining the importance of regular breakfast consumption in potentially mitigating heart attack risks.
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Affiliation(s)
- Yuli Guo
- Department of Cardiology, The First Hospital of Shanxi Medical University, School of Medicine, Shanxi Medical University, Taiyuan, China
| | - Luo Lv
- Department of Cardiology, The Second Hospital of Shanxi Medical University, School of Medicine, Shanxi Medical University, Taiyuan, China
| | - Hui Gao
- Department of Cardiology, The First Hospital of Shanxi Medical University, School of Medicine, Shanxi Medical University, Taiyuan, China
| | - Ruiting Feng
- Department of Cardiology, The First Hospital of Shanxi Medical University, School of Medicine, Shanxi Medical University, Taiyuan, China
| | - Min Guo
- Department of Cardiology, The First Hospital of Shanxi Medical University, School of Medicine, Shanxi Medical University, Taiyuan, China
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Li M, Zhang Y, Huang M, Fan Y, Wang D, Ma Z, Ye T, Fan F. Prevalence, correlates, and mental health outcomes of social jetlag in Chinese school-age adolescents: A large-scale population-based study. Sleep Med 2024; 119:424-431. [PMID: 38781665 DOI: 10.1016/j.sleep.2024.05.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 05/15/2024] [Accepted: 05/16/2024] [Indexed: 05/25/2024]
Abstract
BACKGROUND This cross-sectional study aimed to examine the prevalence and correlates of social jetlag (SJL) in Chinese adolescents, as well as to test the relationships between SJL and mental health problems. METHODS A total of 106979 students (Mage = 13.0 ± 1.8 years; Nmale = 58296 [54.5 %]) from Shenzhen, China completed an online survey from May 24th to June 5th, 2022. Information on sociodemographics, lifestyles, sleep characteristics, anxiety symptoms, and depressive symptoms was collected by a self-administered questionnaire. Multivariate and binary logistic regression were adopted for data analysis. RESULTS 17.8 % of participants experienced SJL ≥ 2 h. To adjust the accumulated sleep debt, sleep-corrected SJL (SJLsc) was calculated and 8.3 % of individuals self-reported SJLsc ≥ 2 h. Both SJL and SJLsc show an increasing trend with age. Risk factors of SJL included females, poor parental marital status, being overweight, physically inactive, smoking, drinking, and having a late chronotype. Moreover, males, having siblings, boarding at school, short sleep duration, experiencing insomnia, and frequent nightmares were significantly associated with an increased risk of SJLsc. After adjusting for all covariates, adolescents with SJLsc ≥ 2 h were more likely to have anxiety symptoms (OR: 1.35, 95 % CI: 1.24-1.48) and depressive symptoms (OR: 1.35, 95 % CI: 1.25-1.46) than those with SJLsc < 1 h. CONCLUSIONS SJL is common among Chinese school-age adolescents. This study is valuable for the development of prevention and intervention strategies for SJL in adolescents at the population level. Additionally, the strong links between SJLsc and emotional problems underscore the critical significance of addressing SJL as a key aspect of adolescent well-being.
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Affiliation(s)
- Min Li
- School of Psychology, Centre for Studies of Psychological Applications, Guangdong Key Laboratory of Mental Health and Cognitive Science, Ministry of Education Key Laboratory of Brain Cognition and Educational Science, Guangdong Emergency Response Technology Research Center for Psychological Assistance in Emergencies, South China Normal University, Guangzhou, China
| | - Yifan Zhang
- School of Psychology, Centre for Studies of Psychological Applications, Guangdong Key Laboratory of Mental Health and Cognitive Science, Ministry of Education Key Laboratory of Brain Cognition and Educational Science, Guangdong Emergency Response Technology Research Center for Psychological Assistance in Emergencies, South China Normal University, Guangzhou, China
| | - Meijiao Huang
- School of Psychology, Centre for Studies of Psychological Applications, Guangdong Key Laboratory of Mental Health and Cognitive Science, Ministry of Education Key Laboratory of Brain Cognition and Educational Science, Guangdong Emergency Response Technology Research Center for Psychological Assistance in Emergencies, South China Normal University, Guangzhou, China
| | - Yunge Fan
- School of Psychology, Centre for Studies of Psychological Applications, Guangdong Key Laboratory of Mental Health and Cognitive Science, Ministry of Education Key Laboratory of Brain Cognition and Educational Science, Guangdong Emergency Response Technology Research Center for Psychological Assistance in Emergencies, South China Normal University, Guangzhou, China
| | - Dongfang Wang
- School of Psychology, Centre for Studies of Psychological Applications, Guangdong Key Laboratory of Mental Health and Cognitive Science, Ministry of Education Key Laboratory of Brain Cognition and Educational Science, Guangdong Emergency Response Technology Research Center for Psychological Assistance in Emergencies, South China Normal University, Guangzhou, China
| | - Zijuan Ma
- School of Psychology, Centre for Studies of Psychological Applications, Guangdong Key Laboratory of Mental Health and Cognitive Science, Ministry of Education Key Laboratory of Brain Cognition and Educational Science, Guangdong Emergency Response Technology Research Center for Psychological Assistance in Emergencies, South China Normal University, Guangzhou, China
| | - Tingting Ye
- Xin'an Middle School Group Foreign Language School, Shenzhen, China
| | - Fang Fan
- School of Psychology, Centre for Studies of Psychological Applications, Guangdong Key Laboratory of Mental Health and Cognitive Science, Ministry of Education Key Laboratory of Brain Cognition and Educational Science, Guangdong Emergency Response Technology Research Center for Psychological Assistance in Emergencies, South China Normal University, Guangzhou, China.
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Jiang J, Chen G, Song X, Lu J, Wang J, Ding F, Ba L, Mei J. Effects of chronotype on sleep, mood and cardiovascular circadian rhythms in rotating night shift medical workers. Int Arch Occup Environ Health 2024; 97:461-471. [PMID: 38429581 DOI: 10.1007/s00420-024-02060-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 02/23/2024] [Indexed: 03/03/2024]
Abstract
PURPOSE Whether chronotype affects the health outcomes of night shift work populations is unknown. This study aimed to assess the influence of different chronotypes in the rotating night shift population on sleep status, mood, blood pressure (BP), and heart rate variability (HRV), as well as the circadian rhythm of BP and HRV. METHODS A total of 208 rotating night shift workers were included. All participants completed structured questionnaires to assess chronotype, mood and sleep status. During their daily lives outside of the night shift, they underwent 24-hour Holter electrocardiogram monitoring and 24-hour ambulatory blood pressure monitoring. Day-time and night-time BP and BP dipping were obtained. Day-time and night-time HRV values (SDNN, RMSSD, LF, HF, LF nu, SD1, SD2 and SD2/SD1) were calculated and fitted to the cosine period curve. Three circandian parameters (mesor, amplitude and acrophase) were extracted to quantify the circadian rhythm of the HRV indices. RESULTS Among all three groups, E-type showed more fatigue and sleepiness. In addition, E-type showed blunted diastolic BP dipping. Notably, E-type showed association with higher RMSSD, LF, HF and SD1 in the night time, and higher mesors of RMSSD and LF and amplitude of SD2/SD1 in circadian analysis. CONCLUSION Chronotype is a factor affecting fatigue, sleepiness and cardiovascular circadian rhythms of rotating night shift workers. Chronotype should be taken into consideration for managing night-shift rotation to promote occupational health.
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Affiliation(s)
- Jinzhen Jiang
- Department of Neurology, Wuhan No.1 Hospital, Wuhan, 430022, People's Republic of China
- The First Clinical Medical Institute, Hubei University of Chinese Medicine, Wuhan, 430065, Hubei, People's Republic of China
| | - Guohua Chen
- Department of Neurology, Wuhan No.1 Hospital, Wuhan, 430022, People's Republic of China
| | - Xinhua Song
- Department of Neurology, Wuhan No.1 Hospital, Wuhan, 430022, People's Republic of China
- The First Clinical Medical Institute, Hubei University of Chinese Medicine, Wuhan, 430065, Hubei, People's Republic of China
| | - Jiajia Lu
- Electrocardiogram Unit, Wuhan No.1 Hospital, Wuhan, 430022, People's Republic of China
| | - Jing Wang
- Department of Neurology, Wuhan No.1 Hospital, Wuhan, 430022, People's Republic of China
| | - Fengfei Ding
- Department of Pharmacology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China
| | - Li Ba
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China.
| | - Junhua Mei
- Department of Neurology, Wuhan No.1 Hospital, Wuhan, 430022, People's Republic of China.
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Henson J, Covenant A, Hall AP, Herring L, Rowlands AV, Yates T, Davies MJ. Waking Up to the Importance of Sleep in Type 2 Diabetes Management: A Narrative Review. Diabetes Care 2024; 47:331-343. [PMID: 38394635 DOI: 10.2337/dci23-0037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 09/27/2023] [Indexed: 02/25/2024]
Abstract
For the first time, the latest American Diabetes Association/European Association for the Study of Diabetes (ADA/EASD) consensus guidelines have incorporated a growing body of evidence linking health outcomes associated with type 2 diabetes to the movement behavior composition over the whole 24-h day. Of particular note, the importance of sleep as a key lifestyle component in the management of type 2 diabetes is promulgated and presented using three key constructs: quantity, quality, and timing (i.e., chronotype). In this narrative review we highlight some of the key evidence justifying the inclusion of sleep in the latest consensus guidelines by examining the associations of quantity, quality, and timing of sleep with measures of glycemia, cardiovascular disease risk, and mortality. We also consider potential mechanisms implicated in the association between sleep and type 2 diabetes and provide practical advice for health care professionals about initiating conversations pertaining to sleep in clinical care. In particular, we emphasize the importance of measuring sleep in a free-living environment and provide a summary of the different methodologies and targets. In summary, although the latest ADA/EASD consensus report highlights sleep as a central component in the management of type 2 diabetes, placing it, for the first time, on a level playing field with other lifestyle behaviors (e.g., physical activity and diet), the evidence base for improving sleep (beyond sleep disorders) in those living with type 2 diabetes is limited. This review should act as a timely reminder to incorporate sleep into clinical consultations, ongoing diabetes education, and future interventions.
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Affiliation(s)
- Joseph Henson
- NIHR Leicester Biomedical Research Centre, Diabetes Research Centre, College of Life Sciences, University of Leicester, U.K
| | - Alix Covenant
- NIHR Leicester Biomedical Research Centre, Diabetes Research Centre, College of Life Sciences, University of Leicester, U.K
| | - Andrew P Hall
- University Hospitals of Leicester NHS Trust, Leicester, U.K
- Hanning Sleep Laboratory, Leicester General Hospital, Leicester, U.K
| | - Louisa Herring
- NIHR Leicester Biomedical Research Centre, Diabetes Research Centre, College of Life Sciences, University of Leicester, U.K
- University Hospitals of Leicester NHS Trust, Leicester, U.K
| | - Alex V Rowlands
- NIHR Leicester Biomedical Research Centre, Diabetes Research Centre, College of Life Sciences, University of Leicester, U.K
- Alliance for Research in Exercise, Nutrition and Activity (ARENA), UniSA Allied Health and Human Performance, University of South Australia, Adelaide, Australia
| | - Thomas Yates
- NIHR Leicester Biomedical Research Centre, Diabetes Research Centre, College of Life Sciences, University of Leicester, U.K
| | - Melanie J Davies
- NIHR Leicester Biomedical Research Centre, Diabetes Research Centre, College of Life Sciences, University of Leicester, U.K
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Baidoo VYA, Alexandria SJ, Zee PC, Knutson KL. The association between timing of dietary macronutrient and sodium consumption and sleep duration and quality. SLEEP ADVANCES : A JOURNAL OF THE SLEEP RESEARCH SOCIETY 2024; 5:zpae007. [PMID: 38314117 PMCID: PMC10838122 DOI: 10.1093/sleepadvances/zpae007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 01/05/2024] [Indexed: 02/06/2024]
Abstract
Study Objective The objective of this study was to examine the association between the timing of dietary macronutrients and sodium intake and sleep quantity and quality. Methods This was a cross-sectional study that included 34 adults between 21 and 50 years of age. The main outcome measures were objective sleep measures assessed from three nights of wrist actigraphy including sleep duration, fragmentation, and wake after sleep onset (WASO), and one night of polysomnography (PSG), including rapid eye movement (REM) sleep, non-REM stage 2 (N2), stage 3 (N3), and WASO. Multiple linear regression models and linear mixed models were used to estimate the associations between sleep measures and dietary measures (carbohydrates, fats, saturated fats, proteins, and sodium). Dietary timing was examined in two ways: (1) the average amount of each nutrient consumed within 3 hours of sleep start, and (2) the interval between the final intake of each nutrient and sleep. Results Average fat intake within 3 hours of sleep was associated with greater WASO from PSG (β = 4.48, p = 0.01). No other associations were found between the macronutrients or sodium intake (p > 0.05) within 3 hours of sleep and the sleep parameters from PSG or actigraphy. Similarly, no associations were found between any of the PSG or actigraphy sleep measures and the interval between final nutrient intakes and sleep with sleep duration. Conclusions The study suggests that greater fat but not carbohydrate, protein, saturated fat, or sodium intake close to sleep may be associated with greater sleep disruption; however, no other associations were observed.
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Affiliation(s)
- Velarie Yaa Ansu Baidoo
- Postdoctoral fellow, Center for Circadian and Sleep Medicine, Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Shaina J Alexandria
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago IL, USA
| | - Phyllis C Zee
- Center for Circadian and Sleep Medicine, Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Kristen L Knutson
- Center for Circadian and Sleep Medicine, Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
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Chen Y, Hu Y, Li R, Kang W, Zhao A, Lu R, Yin Y, Tong S, Yuan J, Li S. Association of residential greenness with chronotype among children. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 903:166011. [PMID: 37541519 DOI: 10.1016/j.scitotenv.2023.166011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 07/18/2023] [Accepted: 08/01/2023] [Indexed: 08/06/2023]
Abstract
BACKGROUND The association between residential greenness and chronotype remains unclear, especially among children. The current study aimed to explore the associations between residential greenness and chronotype parameters in children and examine potential pathways for these associations. METHODS In this cross-sectional study, 16,421 children ages 3-12 were included. Two satellite-derived vegetation indices, i.e., the normalized difference vegetation index (NDVI) and the enhanced vegetation index (EVI), were used to estimate residential greenness. The mid-sleep point on a workday (MSW) and the mid-sleep point on free days (MSF) were considered. And mid-sleep time on free days adjusted for sleep debt (MSFsc) was used as an indicator of chronotype. In addition to multivariable linear regression models, subgroup analyses were conducted to explore effect modifiers, and mediation analyses were used to explore possible mediating mechanisms of air pollutants underlying the associations. RESULTS An interquartile range (IQR) increase in both NDVI500-m and EVI500-m was significantly associated with an earlier MSFsc of -0.061 (95 % confidence interval (CI): -0.072, -0.049) and -0.054 (95 % CI: -0.066, -0.042), respectively. Non-linear dose response relationships were discovered between greenness indices and MSFsc and MSF. The results of stratified analyses showed the effect of residential greenness on MSW was stronger among primary school children and individuals with higher household income than among kindergarten children and those with lower household income. The joint mediation effects of PM2.5, PM1, PM10, NO2, and SO2 on the associations of NDVI500-m and EVI500-m with MSFsc were 89.6 % and 76.0 %, respectively. CONCLUSIONS Higher levels of residential greenness may have beneficial effects on an earlier chronotype in the child population, by reducing the effects of air pollutants, especially PM2.5. Our research hopes to promote the deployment of green infrastructure and healthy urban design strategies.
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Affiliation(s)
- Yiting Chen
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yabin Hu
- Department of Clinical Epidemiology and Biostatistics, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Rong Li
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wenhui Kang
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Anda Zhao
- Department of Nutrition, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ruoyu Lu
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yong Yin
- Department of Respiratory Medicine, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shilu Tong
- National Institute of Environmental Health, Chinese Centers for Disease Control and Prevention, Beijing, China; School of Public Health, Anhui Medical University, Hefei, China; Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China; School of Public Health and Social Work, Queensland University of Technology, Brisbane, QLD, Australia.
| | - Jiajun Yuan
- Child Health Advocacy Institute, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Shenghui Li
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China; MOE-Shanghai Key Laboratory of Children's Environmental Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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Xiao Q, Durbin J, Bauer C, Yeung CHC, Figueiro MG. Alignment Between 24-h Light-Dark and Activity-Rest Rhythms Is Associated With Diabetes and Glucose Metabolism in a Nationally Representative Sample of American Adults. Diabetes Care 2023; 46:2171-2179. [PMID: 37734073 DOI: 10.2337/dc23-1034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 08/31/2023] [Indexed: 09/23/2023]
Abstract
OBJECTIVE The alignment between environmental stimuli (e.g., dark, light) and behavior cycles (e.g., rest, activity) is an essential feature of the circadian timing system, a key contributor to metabolic health. However, no previous studies have investigated light-activity alignment in relation to glycemic control in human populations. RESEARCH DESIGN AND METHODS The analysis included ∼7,000 adults (aged 20-80 years) from the National Health and Nutrition Examination Survey (NHANES) (2011-2014) with actigraphy-measured, multiday, 24-h activity and light data. We used phasor analysis to derive phasor magnitude and phasor angle, which measures coupling strength and phase difference between the activity-rest and light-dark cycles, respectively. We used multinomial logistic regression and multiple linear regression to study phasor magnitude and phasor angle in relation to diabetes (primary outcome) and multiple secondary biomarkers of glycemic control. RESULTS Lower alignment strength (i.e., a shorter phasor magnitude) and more delayed activity relative to the light cycle (i.e., a larger phasor angle) were both associated with diabetes. Specifically, compared with individuals in the quintiles indicating the most proper alignment (Q5 for phasor magnitude and Q1 for phasor angle), those in the quintiles with the most impaired alignment had a >70% increase in the odds of diabetes for phasor magnitude (odds ratio 1.76 [95% CI 1.39, 2.24]) and for phasor angle (1.73 [1.34, 2.25]). Similar associations were observed for biomarkers for glucose metabolism. The results were generally consistent across diverse sociodemographic and obesity groups. CONCLUSIONS The alignment pattern between 24-h activity-rest and light-dark cycles may be a critical factor in metabolic health.
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Affiliation(s)
- Qian Xiao
- Department of Epidemiology, Human Genetics and Environmental Sciences, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX
- Center for Spatial-Temporal Modeling for Applications in Population Sciences, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX
| | - John Durbin
- Light and Health Research Center, Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Cici Bauer
- Center for Spatial-Temporal Modeling for Applications in Population Sciences, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX
- Department of Biostatistics and Data Science, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX
| | - Chris Ho Ching Yeung
- Department of Epidemiology, Human Genetics and Environmental Sciences, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX
| | - Mariana G Figueiro
- Light and Health Research Center, Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY
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Yan L, Chen J, Li F, Chen Y, Mei Z, Chen L. Circadian Rhythm and the Risk of Cardiovascular Diseases: Genetic Evidence. Aging Dis 2023:AD.2023.1018. [PMID: 37962466 DOI: 10.14336/ad.2023.1018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 10/18/2023] [Indexed: 11/15/2023] Open
Affiliation(s)
- Lili Yan
- Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, China
| | - Jun Chen
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Fuhao Li
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Yijie Chen
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Ziwei Mei
- Lishui municipal central hospital, Lishui, Zhejiang, China
| | - Lei Chen
- Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, China
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Rastmanesh R, Gulcin Sagdicoglu Celep A, Wall-Medrano A. Editorial: Undetermined implications of chronutrition: a missing curriculum in medicine. Front Nutr 2023; 10:1290017. [PMID: 37841399 PMCID: PMC10576553 DOI: 10.3389/fnut.2023.1290017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 09/18/2023] [Indexed: 10/17/2023] Open
Affiliation(s)
| | | | - Abraham Wall-Medrano
- Coordinación de Ciencias Químico-Biológicas, Instituto de Ciencias Biomédicas, Universidad Autónoma de Ciudad Juárez, Ciudad Juárez, Chihuahua, Mexico
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13
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BaHammam AS, Pirzada A. Timing Matters: The Interplay between Early Mealtime, Circadian Rhythms, Gene Expression, Circadian Hormones, and Metabolism-A Narrative Review. Clocks Sleep 2023; 5:507-535. [PMID: 37754352 PMCID: PMC10528427 DOI: 10.3390/clockssleep5030034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/24/2023] [Accepted: 09/04/2023] [Indexed: 09/28/2023] Open
Abstract
Achieving synchronization between the central and peripheral body clocks is essential for ensuring optimal metabolic function. Meal timing is an emerging field of research that investigates the influence of eating patterns on our circadian rhythm, metabolism, and overall health. This narrative review examines the relationship between meal timing, circadian rhythm, clock genes, circadian hormones, and metabolic function. It analyzes the existing literature and experimental data to explore the connection between mealtime, circadian rhythms, and metabolic processes. The available evidence highlights the importance of aligning mealtime with the body's natural rhythms to promote metabolic health and prevent metabolic disorders. Specifically, studies show that consuming meals later in the day is associated with an elevated prevalence of metabolic disorders, while early time-restricted eating, such as having an early breakfast and an earlier dinner, improves levels of glucose in the blood and substrate oxidation. Circadian hormones, including cortisol and melatonin, interact with mealtimes and play vital roles in regulating metabolic processes. Cortisol, aligned with dawn in diurnal mammals, activates energy reserves, stimulates appetite, influences clock gene expression, and synchronizes peripheral clocks. Consuming meals during periods of elevated melatonin levels, specifically during the circadian night, has been correlated with potential implications for glucose tolerance. Understanding the mechanisms of central and peripheral clock synchronization, including genetics, interactions with chronotype, sleep duration, and hormonal changes, provides valuable insights for optimizing dietary strategies and timing. This knowledge contributes to improved overall health and well-being by aligning mealtime with the body's natural circadian rhythm.
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Affiliation(s)
- Ahmed S. BaHammam
- The University Sleep Disorders Center, Department of Medicine, College of Medicine, King Saud University, Riyadh 11324, Saudi Arabia
| | - Abdulrouf Pirzada
- North Cumbria Integrated Care (NCIC), National Health Service (NHS), Carlisle CA2 7HY, UK;
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14
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Davis JK, Mark S, Mackin L, Paul SM, Cooper BA, Conley YP, Hammer MJ, Levine JD, Miaskowski C. Sleep disturbance and decrements in morning energy contribute to a higher symptom burden in oncology patients. Sleep Med 2023; 108:124-136. [PMID: 37354746 DOI: 10.1016/j.sleep.2023.06.004] [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] [Received: 04/14/2023] [Revised: 05/29/2023] [Accepted: 06/02/2023] [Indexed: 06/26/2023]
Abstract
OBJECTIVE/BACKGROUND An emerging area of research is the relationship between sleep disturbance and decrements in energy. Given the paucity of research on the co-occurrence of these two symptoms, study purposes were to identify subgroups of oncology patients with distinct joint sleep disturbance AND morning energy profiles and evaluate for differences among the subgroups in demographic, clinical, and sleep disturbance characteristics, as well as the severity of other common symptoms and QOL outcomes. PATIENTS/METHODS Patients (n = 1336) completed measures of sleep disturbance and energy 6 times over two cycles of chemotherapy. All of the other measures were completed at enrollment. Latent profile analysis was used to identify the distinct joint sleep disturbance and morning energy profiles. RESULTS Three distinct profiles were identified (i.e., Low Sleep Disturbance and High Morning Energy (Normal, 20.6%), Moderate Sleep Disturbance and Low Morning Energy (Moderately Severe, 52.1%), Very High Sleep Disturbance and Very Low Morning Energy (Very Severe, 27.3%). Compared to Normal class, other two classes were more likely to be female, less likely to be employed, and had higher comorbidity burden and poorer functional status. Symptom scores and QOL outcomes exhibited a dose response effect (i.e., as the profile worsened, symptom scores increased and QOL scores decreased). CONCLUSIONS Given the associations between sleep disturbance and decrements in energy and a higher symptom burden, poorer QOL outcomes, and increased mortality, assessment of these two symptoms needs to be a high priority for clinicians and appropriate interventions initiated.
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Affiliation(s)
| | - Sueann Mark
- School of Nursing, University of California, San Francisco, CA, USA.
| | - Lynda Mackin
- School of Nursing, University of California, San Francisco, CA, USA.
| | - Steven M Paul
- School of Nursing, University of California, San Francisco, CA, USA.
| | - Bruce A Cooper
- School of Nursing, University of California, San Francisco, CA, USA.
| | - Yvette P Conley
- School of Nursing, University of Pittsburgh, Pittsburgh, PA, USA.
| | | | - Jon D Levine
- School of Medicine, University of California, San Francisco, CA, USA.
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15
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Zuraikat FM, Jelic S, St-Onge MP. Wake up! It's time to recognize the importance of sleep in metabolic health. Obesity (Silver Spring) 2023; 31:1188-1191. [PMID: 37140407 PMCID: PMC10322183 DOI: 10.1002/oby.23776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 03/22/2023] [Indexed: 05/05/2023]
Affiliation(s)
- Faris M Zuraikat
- Department of Medicine, Columbia University Irving Medical Center, New York, New York, USA
| | - Sanja Jelic
- Department of Medicine, Columbia University Irving Medical Center, New York, New York, USA
| | - Marie-Pierre St-Onge
- Department of Medicine, Columbia University Irving Medical Center, New York, New York, USA
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