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Li Y, Fang W, Qiu H, Yu H, Dong W, Sun Z. Diurnal biological effects of correlated colour temperature and its exposure timing on alertness, cognition, and mood in an enclosed environment. APPLIED ERGONOMICS 2024; 119:104304. [PMID: 38718532 DOI: 10.1016/j.apergo.2024.104304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 04/06/2024] [Accepted: 05/01/2024] [Indexed: 06/11/2024]
Abstract
Artificial lighting, which profits from the non-visual effects of light, is a potentially promising solution to support residents' psychophysiological health and performance at specific times of the day in enclosed environments. However, few studies have investigated the non-visual effects of daytime correlated colour temperature (CCT) and its exposure timing on human alertness, cognition, and mood. However, the neural mechanisms underlying these effects are largely unknown. The current study evaluated the effects of daytime CCT and its exposure timing on markers of subjective experience, cognitive performance, and cerebral activity in a simulated enclosed environment. Forty-two participants participated a single-blind laboratory study with a 4 within (CCT: 4000 K vs. 6500 K vs. 8500 K vs. 12,000 K) × 2 between (exposure timing: morning vs. afternoon) mixed design. The results showed time of the day dependent benefits of the daytime CCT on subjective experience, vigilant attention, response inhibition, working memory, emotional perception, and risk decisions. The results of the electroencephalogram (EEG) revealed that lower-frequency EEG bands, including theta, alpha, and alpha-theta, were quite sensitive to daytime CCT intervention, which provides a valuable reference for trying to establish the underlying mechanisms that support the performance-enhancement effects of exposure to CCT in the daytime. However, the results revealed no consistent intervention pattern across these measurements. Therefore, future studies should consider personalised optimisation of daytime CCT for different cognitive demands.
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Affiliation(s)
- YanJie Li
- School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, No. 3 Shang Yuan Cun, Haidian District, 100044 Beijing, China.
| | - WeiNing Fang
- School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, No. 3 Shang Yuan Cun, Haidian District, 100044 Beijing, China; State Key Laboratory of Advanced Rail Autonomous Operation, Beijing Jiaotong University, No. 3 Shang Yuan Cun, Haidian District, 100044 Beijing, China.
| | - HanZhao Qiu
- School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, No. 3 Shang Yuan Cun, Haidian District, 100044 Beijing, China.
| | - Hongqiang Yu
- National Key Laboratory of Human Factors Engineering, China Astronaut Research and Training Center, Haidian District, 100094 Beijing, China.
| | - WenLi Dong
- School of Automation and Intelligence, Beijing Jiaotong University, No. 3 Shang Yuan Cun, Haidian District, 100044 Beijing, China.
| | - Zhe Sun
- School of Automation and Intelligence, Beijing Jiaotong University, No. 3 Shang Yuan Cun, Haidian District, 100044 Beijing, China.
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Royle ML, Connolly EJ. Changes in Restless Sleep, Self-Control, and Alcohol-Related Problems with Police from Late Adolescence to Adulthood. J Youth Adolesc 2024; 53:1728-1742. [PMID: 38446288 DOI: 10.1007/s10964-024-01958-z] [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: 09/25/2023] [Accepted: 02/14/2024] [Indexed: 03/07/2024]
Abstract
Sleep quality is crucial for healthy adolescent brain development, which has downstream effects on self-control and involvement in risky behaviors, such as alcohol use. While previous studies have found that sleep and facets of self-control are associated with patterns of alcohol use, few have assessed whether these constructs are tied to alcohol-related problems with law enforcement during the transitional period from adolescence to adulthood. The current study uses self-report panel data from ages 16 to 27 from a population-based sample of U.S. youth (N = 956; 36.86% female). The goal of the current study is to assess the association between changes in restless sleep, impulsivity, sensation seeking, and problems with police during or shortly after consuming alcohol from adolescence to adulthood to begin to address this gap in the existing literature. Results from a multivariate latent growth curve model reveal that faster increases in restless sleep and slower declines in impulsivity are associated with slower declines in police contact. Correlated changes between restless sleep, impulsivity, and police contact are slightly greater from ages 16-21 than for ages 22-27, with males showing stronger associations. The reported results suggest that identifying developmental mechanisms between changes in poor sleep, impulsivity, and alcohol use behaviors during this life-course phase will be crucial moving forward to help divert youth away from alcohol-related contact with the police.
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Affiliation(s)
- Meghan L Royle
- Department of Criminal Justice and Criminology, Sam Houston State University, Huntsville, TX, 77340, USA.
| | - Eric J Connolly
- Department of Criminal Justice and Criminology, Sam Houston State University, Huntsville, TX, 77340, USA
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3
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Bonilla P, Shanks A, Nerella Y, Porcu A. Effects of chronic light cycle disruption during adolescence on circadian clock, neuronal activity rhythms, and behavior in mice. Front Neurosci 2024; 18:1418694. [PMID: 38952923 PMCID: PMC11215055 DOI: 10.3389/fnins.2024.1418694] [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: 04/16/2024] [Accepted: 05/29/2024] [Indexed: 07/03/2024] Open
Abstract
The advent of artificial lighting, particularly during the evening and night, has significantly altered the predictable daily light and dark cycles in recent times. Altered light environments disrupt the biological clock and negatively impact mood and cognition. Although adolescents commonly experience chronic changes in light/dark cycles, our understanding of how the adolescents' brain adapts to altered light environments remains limited. Here, we investigated the impact of chronic light cycle disruption (LCD) during adolescence, exposing adolescent mice to 19 h of light and 5 h of darkness for 5 days and 12 L:12D for 2 days per week (LCD group) for 4 weeks. We showed that LCD exposure did not affect circadian locomotor activity but impaired memory and increased avoidance response in adolescent mice. Clock gene expression and neuronal activity rhythms analysis revealed that LCD disrupted local molecular clock and neuronal activity in the dentate gyrus (DG) and in the medial amygdala (MeA) but not in the circadian pacemaker (SCN). In addition, we characterized the photoresponsiveness of the MeA and showed that somatostatin neurons are affected by acute and chronic aberrant light exposure during adolescence. Our research provides new evidence highlighting the potential consequences of altered light environments during pubertal development on neuronal physiology and behaviors.
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Affiliation(s)
| | | | | | - Alessandra Porcu
- Department of Drug Discovery and Biomedical Science, University of South Carolina, Columbia, SC, United States
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Nian J, Lan W, Wang Z, Zhang X, Yao H, Zhang F. Exploring the metabolic implications of blue light exposure during daytime in rats. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 278:116436. [PMID: 38723383 DOI: 10.1016/j.ecoenv.2024.116436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 04/11/2024] [Accepted: 05/03/2024] [Indexed: 05/26/2024]
Abstract
Excessive exposure to light is a global issue. Artificial light pollution has been shown to disrupt the body's natural circadian rhythm. To investigate the impacts of light on metabolism, we studied Sprague-Dawley rats chronically exposed to red or blue light during daytime or nighttime. Rats in the experimental group were exposed to extended light for 4 hours during daytime or nighttime to simulate the effects of excessive light usage. Strikingly, we found systemic metabolic alterations only induced by blue light during daytime. Furthermore, we conducted metabolomic analyses of the cerebrospinal fluid, serum, heart, liver, spleen, adrenal, cerebellum, pituitary, prostate, spermatophore, hypothalamus and kidney from rats in the control and blue light exposure during daytime. Significant changes in metabolites have been observed in cerebrospinal fluid, serum, hypothalamus and kidney of rats exposed to blue light during daytime. Metabolic alterations observed in rats encompassing pyruvate metabolism, glutathione metabolism homocysteine degradation, phosphatidylethanolamine biosynthesis, and phospholipid biosynthesis, exhibit analogous patterns to those inherent in specific physiological processes, notably neurodevelopment, cellular injury, oxidative stress, and autophagic pathways. Our study provides insights into tissue-specific metabolic changes in rats exposed to blue light during the daytime and may help explain potential mechanisms of photopathogenesis.
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Affiliation(s)
- Jingjing Nian
- Key Laboratory of Gastrointestinal Cancer, Ministry of Education, School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350122, PR China
| | - Wenning Lan
- Key Laboratory of Gastrointestinal Cancer, Ministry of Education, School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350122, PR China
| | - Ziran Wang
- Key Laboratory of Gastrointestinal Cancer, Ministry of Education, School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350122, PR China
| | - Xiaojing Zhang
- Key Laboratory of Gastrointestinal Cancer, Ministry of Education, School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350122, PR China
| | - Hong Yao
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, PR China
| | - Fangrong Zhang
- Key Laboratory of Gastrointestinal Cancer, Ministry of Education, School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350122, PR China; Fujian Key Laboratory of Tumor Microbiology, Department of Medical Microbiology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, PR China.
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Hou TW, Yang CC, Lai TH, Wu YH, Yang CP. Light Therapy in Chronic Migraine. Curr Pain Headache Rep 2024:10.1007/s11916-024-01258-y. [PMID: 38865075 DOI: 10.1007/s11916-024-01258-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/08/2024] [Indexed: 06/13/2024]
Abstract
PURPOSE OF REVIEW This review assesses the effectiveness and safety of light therapy, particularly green light therapy, as an emerging non-pharmacological treatment for chronic migraine (CM). It aims to highlight alternative or complementary approaches to traditional pharmacological remedies, focusing the need for diverse treatment options. RECENT FINDINGS Despite sensitivity to light being a defining feature of migraine, light therapy has shown promising signs in providing substantial symptom relief. Studies have provided insights into green light therapy's role in managing CM. These studies consistently demonstrate its efficacy in reducing the frequency, severity, and symptoms of migraines. Additional benefits observed include improvements in sleep quality and reductions in anxiety. Importantly, green light therapy has been associated with minimal side effects, indicating its potential as a suitable option for migraine sufferers. In addition to green light, other forms of light therapy, such as infrared polarized light, low-level laser therapy (LLLT), and intravascular irradiation of blood (ILIB), are also being explored with potential therapeutic effects. Light therapies, especially green light therapy, are recognized as promising, safe, and non-pharmacological interventions for treating CM. They have been shown to be effective in decreasing headache frequency and enhancing the overall quality of life. However, current studies, often limited by small sample sizes, prompt more extensive clinical trials to better understand the full impact of light therapies. The exploration of other light-based treatments, such as LLLT and ILIB, warrants further research to broaden the scope of effective migraine management strategies.
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Affiliation(s)
- Tsung-Wei Hou
- Department of Neurology, Taichung Veteran General Hospital, Taichung, Taiwan
| | - Cheng-Chia Yang
- Department of Healthcare Administration, Asia University, Taichung, Taiwan
| | - Tzu-Hsien Lai
- Department of Neurology, Far Eastern Memorial Hospital, New Taipei, Taiwan
- School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Ying-Hui Wu
- Department of Family Medicine, Kuang-Tien General Hospital, Taichung, Taiwan.
| | - Chun-Pai Yang
- Department of Neurology, Kuang Tien General Hospital, Taichung, Taiwan.
- Ph.D. Program in Translational Medicine, National Chung Hsing University, Taichung, Taiwan.
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Tota M, Karska J, Kowalski S, Piątek N, Pszczołowska M, Mazur K, Piotrowski P. Environmental pollution and extreme weather conditions: insights into the effect on mental health. Front Psychiatry 2024; 15:1389051. [PMID: 38863619 PMCID: PMC11165707 DOI: 10.3389/fpsyt.2024.1389051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 05/13/2024] [Indexed: 06/13/2024] Open
Abstract
Environmental pollution exposures, including air, soil, water, light, and noise pollution, are critical issues that may implicate adverse mental health outcomes. Extreme weather conditions, such as hurricanes, floods, wildfires, and droughts, may also cause long-term severe concerns. However, the knowledge about possible psychiatric disorders associated with these exposures is currently not well disseminated. In this review, we aim to summarize the current knowledge on the impact of environmental pollution and extreme weather conditions on mental health, focusing on anxiety spectrum disorders, autism spectrum disorders, schizophrenia, and depression. In air pollution studies, increased concentrations of PM2.5, NO2, and SO2 were the most strongly associated with the exacerbation of anxiety, schizophrenia, and depression symptoms. We provide an overview of the suggested underlying pathomechanisms involved. We highlight that the pathogenesis of environmental pollution-related diseases is multifactorial, including increased oxidative stress, systematic inflammation, disruption of the blood-brain barrier, and epigenetic dysregulation. Light pollution and noise pollution were correlated with an increased risk of neurodegenerative disorders, particularly Alzheimer's disease. Moreover, the impact of soil and water pollution is discussed. Such compounds as crude oil, heavy metals, natural gas, agro-chemicals (pesticides, herbicides, and fertilizers), polycyclic or polynuclear aromatic hydrocarbons (PAH), solvents, lead (Pb), and asbestos were associated with detrimental impact on mental health. Extreme weather conditions were linked to depression and anxiety spectrum disorders, namely PTSD. Several policy recommendations and awareness campaigns should be implemented, advocating for the advancement of high-quality urbanization, the mitigation of environmental pollution, and, consequently, the enhancement of residents' mental health.
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Affiliation(s)
- Maciej Tota
- Faculty of Medicine, Wroclaw Medical University, Wroclaw, Poland
| | - Julia Karska
- Department of Psychiatry, Wroclaw Medical University, Wroclaw, Poland
| | - Szymon Kowalski
- Faculty of Medicine, Wroclaw Medical University, Wroclaw, Poland
| | - Natalia Piątek
- Faculty of Medicine, Wroclaw Medical University, Wroclaw, Poland
| | | | - Katarzyna Mazur
- Faculty of Medicine, Wroclaw Medical University, Wroclaw, Poland
| | - Patryk Piotrowski
- Department of Psychiatry, Wroclaw Medical University, Wroclaw, Poland
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Muntyanu A, Milan R, Kaouache M, Ringuet J, Gulliver W, Pivneva I, Royer J, Leroux M, Chen K, Yu Q, Litvinov IV, Griffiths CEM, Ashcroft DM, Rahme E, Netchiporouk E. Tree-Based Machine Learning to Identify Predictors of Psoriasis Incidence at the Neighborhood Level: A Populational Study from Quebec, Canada. Am J Clin Dermatol 2024; 25:497-508. [PMID: 38498268 DOI: 10.1007/s40257-024-00854-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/15/2024] [Indexed: 03/20/2024]
Abstract
BACKGROUND Psoriasis is a major global health burden affecting ~ 60 million people worldwide. Existing studies on psoriasis focused on individual-level health behaviors (e.g. diet, alcohol consumption, smoking, exercise) and characteristics as drivers of psoriasis risk. However, it is increasingly recognized that health behavior arises in the context of larger social, cultural, economic and environmental determinants of health. We aimed to identify the top risk factors that significantly impact the incidence of psoriasis at the neighborhood level using populational data from the province of Quebec (Canada) and advanced tree-based machine learning (ML) techniques. METHODS Adult psoriasis patients were identified using International Classification of Disease (ICD)-9/10 codes from Quebec (Canada) populational databases for years 1997-2015. Data on environmental and socioeconomic factors 1 year prior to psoriasis onset were obtained from the Canadian Urban Environment Health Consortium (CANUE) and Statistics Canada (StatCan) and were input as predictors into the gradient boosting ML. Model performance was evaluated using the area under the curve (AUC). Parsimonious models and partial dependence plots were determined to assess directionality of the relationship. RESULTS The incidence of psoriasis varied geographically from 1.6 to 325.6/100,000 person-years in Quebec. The parsimonious model (top 9 predictors) had an AUC of 0.77 to predict high psoriasis incidence. Amongst top predictors, ultraviolet (UV) radiation, maximum daily temperature, proportion of females, soil moisture, urbanization, and distance to expressways had a negative association with psoriasis incidence. Nighttime light brightness had a positive association, whereas social and material deprivation indices suggested a higher psoriasis incidence in the middle socioeconomic class neighborhoods. CONCLUSION This is the first study to highlight highly variable psoriasis incidence rates on a jurisdictional level and suggests that living environment, notably climate, vegetation, urbanization and neighborhood socioeconomic characteristics may have an association with psoriasis incidence.
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Affiliation(s)
- Anastasiya Muntyanu
- Department of Experimental Medicine, McGill University, Montreal, Canada
- Division of Dermatology, University of Toronto, Toronto, Canada
| | - Raymond Milan
- Department of Experimental Medicine, McGill University, Montreal, Canada
| | - Mohammed Kaouache
- Centre for Outcomes Research and Evaluation, Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | - Julien Ringuet
- Centre de Recherche Dermatologique de Québec, Québec, Canada
| | - Wayne Gulliver
- Faculty of Medicine, Memorial University of Newfoundland, St. John's, NL, Canada
| | | | | | | | | | - Qiuyan Yu
- Ecological and Biological Sciences, Exponent Inc, Menlo Park, USA
| | - Ivan V Litvinov
- Division of Dermatology, Department of Medicine, McGill University Health Centre, Montreal General Hospital, Montreal, QC, Canada
| | | | - Darren M Ashcroft
- School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Global Psoriasis Atlas, Manchester, UK
| | - Elham Rahme
- Department of Medicine, Division of Clinical Epidemiology, McGill University, Montreal, QC, Canada
| | - Elena Netchiporouk
- Division of Dermatology, Department of Medicine, McGill University Health Centre, Montreal General Hospital, Montreal, QC, Canada.
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Liddie JM, Vieira CLZ, Coull BA, Sparrow D, Koutrakis P, Weisskopf MG. Associations between solar and geomagnetic activity and cognitive function in the Normative Aging study. ENVIRONMENT INTERNATIONAL 2024; 187:108666. [PMID: 38648690 PMCID: PMC11146138 DOI: 10.1016/j.envint.2024.108666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 03/22/2024] [Accepted: 04/15/2024] [Indexed: 04/25/2024]
Abstract
BACKGROUND Studies show that changes in solar and geomagnetic activity (SGA) influence melatonin secretion and the autonomic nervous system. We evaluated associations between solar and geomagnetic activity and cognitive function in the Normative Aging Study from 1992 to 2013. METHODS We used logistic and linear generalized estimating equations and regressions to evaluate the associations between moving averages of sunspot number (SSN) and Kp index (a measure of geomagnetic activity) and a binary measure for Mini-Mental State Examination (MMSE) scores (≤25 or > 25) and six other cognitive tests as continuous measures, combined into one global composite score and considered separately. RESULTS A one-IQR increase in same-day SSN and Kp index were associated with 17% (95% CI: 3%, 34%) and 19% (95% CI: 4%, 36%) increases in the odds of low MMSE score. We observed small increases in the global cognitive score with increasing SSN, although we observed decreases specifically in relation to the backwards digit span test. CONCLUSIONS Periods of high SGA were associated with cognitive function. SGA may not equally impact all aspects of cognitive function, as evidenced by differences in associations observed for the MMSE, global cognitive score, and individual cognitive tests. Given that much of the pathology of cognitive decline in the elderly remains unexplained, studies specifically targeting decline and with longer follow-up periods are warranted.
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Affiliation(s)
- Jahred M Liddie
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
| | - Carolina L Z Vieira
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
| | - Brent A Coull
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - David Sparrow
- VA Normative Aging Study, Veterans Affairs Boston Healthcare System, Boston, MA, USA; Department of Medicine, Boston University Chobanian and Avedisian School of Medicine, Boston, MA, USA
| | - Petros Koutrakis
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Marc G Weisskopf
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
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Alenazi SA, Hasham SH, Hanif I, Hussain S, Abderahim M, Alanazi AM, Alhudhayyiri BF, Alanazi AF, Alanazi AM, Elmorsy E. Association of Screen Time Exposure With Autism Spectrum Disorder in Four to Six-Year-Old Children in Arar City, Saudi Arabia. Cureus 2024; 16:e61447. [PMID: 38947650 PMCID: PMC11214804 DOI: 10.7759/cureus.61447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/26/2024] [Indexed: 07/02/2024] Open
Abstract
Background Autism spectrum disorder (ASD) is a psychopathologic disorder caused by several factors. The early signs include poor interaction and communication, delayed milestones, and repeated behavior patterns. This study aimed to assess the relationship between screen time and ASD severity and investigate the types of electronic devices associated with ASD in children aged four to six years in Arar City, Kingdom of Saudi Arabia (KSA). Methodology A cross-sectional study was conducted in primary healthcare centers (PHCs) in Arar City, KSA. The study enrolled all parents with children aged four to six years attending the PHCs in Arar City, KSA. Results The total sample size was 199 participants. Regarding the relationship between screen time exposure and ASD, there were variable screen time exposure durations, with 22.6% of children exposed for less than an hour, 30.7% for one to two hours, and 46.7% for more than two hours. Moreover, the type of electronic devices to which children were exposed varied, with smartphones being the most prevalent (68.3%). In terms of the age of children since exposure to electronic devices, the data indicated that 30.2% were exposed before the age of two, 35.2% between two and three years, and 34.7% after three years of age. Regarding the relationship with sociodemographic characteristics, there was a statistically significant relationship with the mother's age at birth (p = 0.050), mother's education level (p = 0.009), father's education level (p = 0.049), whether the child was suffering from any chronic or neurological disease (p = 0.008), age since the child was exposed to electronic devices (p = 0.049), and screen time exposure duration (p = 0.040). Conclusions The study highlights the significant association between screen time exposure and the development of ASD in children. Public awareness of this associated risk among caregivers is recommended to follow the protective guidelines. Further research and interventions are needed to better understand and address the impact of screen media use on children's neurodevelopment and overall well-being.
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Affiliation(s)
| | | | - Irfan Hanif
- Pediatrics, Northern Border University, Arar, SAU
| | | | | | | | | | - Abdullah F Alanazi
- Medical School, Faculty of Medicine, Northern Border University, Arar, SAU
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Harding BN, Palomar-Cros A, Valentín A, Espinosa A, Sánchez de Miguel A, Castaño-Vinyals G, Pollán M, Perez B, Moreno V, Kogevinas M. Comparing Data from Three Satellites on Artificial Light at Night (ALAN): Focusing on Blue Light's Influence on Colorectal Cancer in a Case-Control Study in Spain. ENVIRONMENTAL HEALTH PERSPECTIVES 2024; 132:57702. [PMID: 38758117 PMCID: PMC11100459 DOI: 10.1289/ehp14414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 04/26/2024] [Accepted: 04/29/2024] [Indexed: 05/18/2024]
Affiliation(s)
- Barbara N. Harding
- Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiology and Public Health (CIBERESP), El Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Anna Palomar-Cros
- Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiology and Public Health (CIBERESP), El Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Fundació Institut Universitari per a la Recerca a l’Atenció Primària de Salut Jordi Gol i Gurina (IDIAPJGol), Barcelona, Spain
| | - Antonia Valentín
- Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiology and Public Health (CIBERESP), El Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Hospital del Mar Medical Research Institute (IMIM), Barcelona, Spain
| | - Ana Espinosa
- Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiology and Public Health (CIBERESP), El Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Hospital del Mar Medical Research Institute (IMIM), Barcelona, Spain
| | - Alejandro Sánchez de Miguel
- Environment and Sustainability Institute, University of Exeter, Penryn, UK
- Departamento Física de la Tierra y Astrofísica, Universidad Complutense de Madrid, Madrid, Spain
| | - Gemma Castaño-Vinyals
- Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiology and Public Health (CIBERESP), El Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Hospital del Mar Medical Research Institute (IMIM), Barcelona, Spain
| | - Marina Pollán
- CIBER Epidemiology and Public Health (CIBERESP), El Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Department of Epidemiology of Chronic Diseases, National Centre for Epidemiology, Instituto de Salud Carlos III, Madrid, Spain
| | - Beatriz Perez
- CIBER Epidemiology and Public Health (CIBERESP), El Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Department of Epidemiology of Chronic Diseases, National Centre for Epidemiology, Instituto de Salud Carlos III, Madrid, Spain
| | - Victor Moreno
- CIBER Epidemiology and Public Health (CIBERESP), El Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Oncology Data Analytics Program, Catalan Institute of Oncology (ICO), L’Hospitalet de Llobregat, Spain
- Colorectal Cancer Group, ONCOBELL Program, Institut de Recerca Biomedica de Bellvitge (IDIBELL), L’Hospitalet de Llobregat, Spain
- Department of Clinical Sciences, Faculty of Medicine and health Sciences and Universitat de Barcelona Institute of Complex Systems (UBICS), University of Barcelona (UB), L’Hospitalet de Llobregat, Spain
| | - Manolis Kogevinas
- Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiology and Public Health (CIBERESP), El Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Hospital del Mar Medical Research Institute (IMIM), Barcelona, Spain
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Qiu T, Fang Q, Tian X, Feng Z, Cao Y, Li Y, Tu Y, Bai J, Liu Y. Postnatal nighttime light exposure and infant temperament at age 12 months: mediating role of genus Akkermansia. Eur Child Adolesc Psychiatry 2024:10.1007/s00787-024-02445-3. [PMID: 38691180 DOI: 10.1007/s00787-024-02445-3] [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: 01/05/2024] [Accepted: 04/19/2024] [Indexed: 05/03/2024]
Abstract
The gut microbiome has been reported to be associated with nighttime light (NTL) exposure and temperament. However, the specific role of infant gut microbiome plays in NTL exposure and temperament is unclear. This study investigated the potential mediating role of infants' gut microbiome in correlations between NTL exposure and temperament. Demographic information, stool samples, and temperament scores were collected from 40 infants. Temperament was evaluated using the Infants Behavior Questionnaire-Revised (IBQ-R). The gut microbiota was analyzed using 16S rRNA sequencing. Cumulative and lagged effects of NTL exposure were calculated based on residential address (NTLpoint) and a concentric 1 km radius buffer zone around the address (NTL1000m), respectively. Mediation models were utilized for assessing the mediating effects of the gut microbiome. The gut microbiome of infants with higher fear scores was characterized by a higher abundance of Akkermansia and Clostridium_sensu_stricto_1 and a lower abundance of Bacteroides. Mediation models indicated Akkermansia played a full mediating role in associations between NTLpoint, NTL1000m and fear in specific time periods. Genus Akkermansia explained 24.46% and 33.50% of associations between fear and cumulative exposure to NTLpoint and NTL1000m, respectively. This study provides evidence for the mediating role of Akkermansia between NTL exposure and fear. However, further experimental is required to elucidate the mechanisms through which the gut microbiome mediates between NTL exposure and temperament in infants.
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Affiliation(s)
- Tianlai Qiu
- Center for Women's and Children's Health Research, Wuhan University School of Nursing; Research Center for Lifespan Health, Wuhan University, 169 Donghu Road, Wuhan, 430071, China
| | - Qingbo Fang
- Center for Women's and Children's Health Research, Wuhan University School of Nursing; Research Center for Lifespan Health, Wuhan University, 169 Donghu Road, Wuhan, 430071, China
| | - Xuqi Tian
- Center for Women's and Children's Health Research, Wuhan University School of Nursing; Research Center for Lifespan Health, Wuhan University, 169 Donghu Road, Wuhan, 430071, China
| | - Zijun Feng
- Center for Women's and Children's Health Research, Wuhan University School of Nursing; Research Center for Lifespan Health, Wuhan University, 169 Donghu Road, Wuhan, 430071, China
| | - Yanan Cao
- Center for Women's and Children's Health Research, Wuhan University School of Nursing; Research Center for Lifespan Health, Wuhan University, 169 Donghu Road, Wuhan, 430071, China
| | - Yanting Li
- Center for Women's and Children's Health Research, Wuhan University School of Nursing; Research Center for Lifespan Health, Wuhan University, 169 Donghu Road, Wuhan, 430071, China
| | - Yiming Tu
- Center for Women's and Children's Health Research, Wuhan University School of Nursing; Research Center for Lifespan Health, Wuhan University, 169 Donghu Road, Wuhan, 430071, China
| | - Jinbing Bai
- Emory University Nell Hodgson Woodruff School of Nursing, 1520 Clifton Road, Atlanta, GA, 30322, USA
| | - Yanqun Liu
- Center for Women's and Children's Health Research, Wuhan University School of Nursing; Research Center for Lifespan Health, Wuhan University, 169 Donghu Road, Wuhan, 430071, China.
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12
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Primavera D, Cossu G, Marchegiani S, Preti A, Nardi AE. Does the Dysregulation of Social Rhythms Syndrome (DYMERS) be Considered an Essential Component of Panic Disorders? Clin Pract Epidemiol Ment Health 2024; 20:e17450179293272. [PMID: 38774791 PMCID: PMC11107449 DOI: 10.2174/0117450179293272240328053722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 02/01/2024] [Accepted: 02/21/2024] [Indexed: 05/24/2024]
Abstract
This editorial explores the role of hyperactivity and social rhythm dysregulation in bipolar disorder (BD) and related syndromes. Social Rhythm Dysregulation Syndrome (DYMERS) is proposed as a common vulnerability across various disorders, including panic disorder (PD), attention deficit hyperactivity disorder, and post-traumatic stress disorder. A study conducted on a sample of elderly individuals participating in an active aging study investigated whether individuals with PD exhibit higher biological rhythm dysregulation compared to those without PD. The sample, consisting of 119 individuals, revealed that those with a lifetime PD diagnosis scored significantly higher on the dysregulation of biological rhythms scale compared to those without panic disorder. A higher prevalence of depressive episodes was found in individuals with PD at the time of the interview. Notably, a small sample of elderly individuals with panic disorder, voluntarily selected for a physical exercise trial, showed a significantly higher level of dysregulation of social rhythms compared to those without panic disorder. This study opens a debate on the accuracy of paper and pencil screening tests for bipolar disorders, especially regarding false positives in individuals with panic disorder. Our hypothesis is that DYMERS could be a shared vulnerability substrate for various disorders, serving as a basis for bipolar onset in the presence of a hyperactivity profile, even with genetic features. The data collected from older adults suggest that social rhythm dysregulation is a typical feature of PD, regardless of the coexistence of a depressive episode. While the study has limitations due to a small sample size, the findings warrant careful analysis and suggest the need for larger-scale replication studies. If confirmed, the dysregulation of rhythms and its association with depressive disorders highlight a significant area of vulnerability for serious psychopathological disorders, emphasizing the importance of extending research to younger populations.
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Affiliation(s)
- Diego Primavera
- Department of Medical Sciences and Public Health, University of Cagliari, Italy Section of Psychiatry, Cagliari, Italy
| | - Giulia Cossu
- Department of Medical Sciences and Public Health, University of Cagliari, Italy Section of Psychiatry, Cagliari, Italy
| | | | - Antonio Preti
- Department of Neuroscience “Rita Levi Montalcini”, University of Turin, Turin, Italy
| | - Antonio Egidio Nardi
- Institute of Psychiatry, Federal University of Rio de Janeiro, Rio de Janeiro Brasil
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13
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Bazaz MR, Asthana A, Dandekar MP. Chitosan revokes controlled-cortical impact generated neurological aberrations in circadian disrupted mice via TLR4-NLRP3 axis. Eur J Pharmacol 2024; 969:176436. [PMID: 38423243 DOI: 10.1016/j.ejphar.2024.176436] [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: 10/15/2023] [Revised: 02/16/2024] [Accepted: 02/16/2024] [Indexed: 03/02/2024]
Abstract
The severity of inevitable neurological deficits and long-term psychiatric disorders in the aftermath of traumatic brain injury is influenced by pre-injury biological factors. Herein, we investigated the therapeutic effect of chitosan lactate on neurological and psychiatric aberrations inflicted by circadian disruption (CD) and controlled-cortical impact (CCI) injury in mice. Firstly, CD was developed in mice by altering sporadic day-night cycles for 2 weeks. Then, CCI surgery was performed using a stereotaxic ImpactOne device. Mice subjected to CCI displayed a significant disruption of motor coordination at 1-, 3- and 5-days post-injury (DPI) in the rotarod test. These animals showed anxiety- and depression-like behaviors in the elevated plus maze and forced-swim test at 14 and 15 DPI, respectively. Notably, mice subjected to CD + CCI exhibited severe cognitive impairment in Y-maze and novel object recognition tasks. The compromised neurological, psychiatric, and cognitive functions were mitigated in chitosan-treated mice (1 and 3 mg/mL). Immunohistochemistry and real-time PCR assay results revealed the magnified responses of prima facie biomarkers like glial-fibrillary acidic protein and ionized calcium-binding adaptor molecule 1 in the pericontusional brain region of the CD + CCI group, indicating aggravated inflammation. We also noted the depleted levels of brain-derived neurotrophic factor and augmented expression of toll-like receptor 4 (TLR4)-leucine-rich-containing family pyrin domain-containing 3 (NLRP3) signaling [apoptosis-associated-speck-like protein (ASC), caspase-1, and interleukin 1-β] in the pericontusional area of CD + CCI group. CCI-induced changes in the astrocyte-glia and aggravated immune responses were ameliorated in chitosan-treated mice. These results suggest that the neuroprotective effect of chitosan in CCI-induced brain injury may be mediated by inhibition of the TLR4-NLRP3 axis.
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Affiliation(s)
- Mohd Rabi Bazaz
- Department of Biological Sciences (Pharmacology and Toxicology), National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad, 500037, India
| | - Amit Asthana
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad, 500037, India
| | - Manoj P Dandekar
- Department of Biological Sciences (Pharmacology and Toxicology), National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad, 500037, India.
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14
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Kumari R, Verma V, Singaravel M. Simulated Chronic Jet Lag Affects the Structural and Functional Complexity of Hippocampal Neurons in Mice. Neuroscience 2024; 543:1-12. [PMID: 38354900 DOI: 10.1016/j.neuroscience.2024.01.026] [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: 06/14/2023] [Revised: 12/21/2023] [Accepted: 01/29/2024] [Indexed: 02/16/2024]
Abstract
There has been a long history that chronic circadian disruption such as jet lag or shift work negatively affects brain and body physiology. Studies have shown that circadian misalignment act as a risk factor for developing anxiety and mood-related depression-like behavior. Till date, most studies focused on simulating jet lag in model animals under laboratory conditions by repeated phase advances or phase delay only, while the real-life conditions may differ. In the present study, adult male mice were subjected to simulated chronic jet lag (CJL) by alternately advancing and delaying the ambient light-dark (LD) cycle by 9 h every 2 days, thereby covering a total of 24 days. The effect of CJL was then examined for a range of stress and depression-related behavioral and physiological responses. The results showed that mice exposed to CJL exhibited depression-like behavior, such as anhedonia. In the open field and elevated plus maze test, CJL-exposed mice showed increased anxiety behavior compared to LD control. In addition, CJL-exposed mice showed an increased level of serum corticosterone and proinflammatory cytokine, TNF-α in both serum and hippocampus. Moreover, CJL-exposed mice exhibited a reduction in structural complexity of hippocampal CA1 neurons along with decreased expression of neurotrophic growth factors, BDNF and NGF in the hippocampus compared to LD control. Taken together, our findings suggest that simulated chronic jet lag adversely affects structural and functional complexity in hippocampal neurons along with interrelated endocrine and inflammatory responses, ultimately leading to stress, anxiety, and depression-like behavior in mice.
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Affiliation(s)
- Ruchika Kumari
- Chronobiology Lab, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Vivek Verma
- Chronobiology Lab, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Muniyandi Singaravel
- Chronobiology Lab, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India.
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15
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Vani V, Ojha P, Gadhvi MA, Dixit A. Attentional Correlates of Colored Lights: Considerations for Cognitive Testing. Neuroscience 2024; 543:83-89. [PMID: 38403240 DOI: 10.1016/j.neuroscience.2024.02.010] [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: 12/30/2023] [Revised: 02/05/2024] [Accepted: 02/12/2024] [Indexed: 02/27/2024]
Abstract
Attention, an important index of cognitive function, can be affected amidst colored lights. This work investigated the effects of colored lights on the performance in attention task. Participants (N = 42) performed in one, two, and three letter cancellation task (LCT) during four lighting conditions. The order of LCT and the colored light sessions were randomized. The performance in LCT was evaluated through % accuracy, % omission, and % error. A repeated measures ANOVA showed a statistically significant difference in % accuracy in one LCT (F(2.46, 100.8) = 24.45, p < 0.001), two LCT (F(2.57, 105.4) = 20.53, p < 0.001), and three LCT (F(2.66, 109.22) = 17.96, p < 0.001) among the four colored lights. In addition, % omission revealed a statistically significant difference in one LCT (F(2.46, 100.8) = 24.43, p < 0.001), two LCT (F(2.57, 105.4) = 20.57, p < 0.001), and three LCT (F(2.66, 109.16) = 18.21, p < 0.001) among the four lights. There was no statistically significant difference in % error in one LCT (F(2.05, 84.1) = 1.23, p = 0.3), two LCT (F(2.66, 109.06) = 0.62, p = 0.971), three LCT (F(2.62, 107.53) = 0.97, p = 0.4) among the four lighting conditions. Colored lights affect attention-related cognitive processing. The attentional correlates of white and red lights are more compared to green, and blue lights. Lighting condition should be an important consideration for cognitive testing, for designing workspaces, educational settings, and other environments where attention plays a crucial role.
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Affiliation(s)
- Vakode Vani
- Department of Physiology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
| | - Pooja Ojha
- Department of Physiology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India.
| | - Mahesh Arjundan Gadhvi
- Department of Physiology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
| | - Abhinav Dixit
- Department of Physiology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
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16
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Wang C, Zhao Y, Hong Q, Lei Y, Wang S, Wang W, Wei W, Sun C, Han T. The association between blue light exposure and incidence of type 2 diabetes: A prospective study of UK biobank. ENVIRONMENTAL RESEARCH 2024; 246:118070. [PMID: 38157962 DOI: 10.1016/j.envres.2023.118070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 12/22/2023] [Accepted: 12/26/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND Type 2 diabetes (T2D) is the most common type of diabetes. However, research on the relationship between blue light exposure and diabetes development is limited. OBJECTIVE The present study aimed to investigate the relationship between blue light exposure and T2D incidence and whether it is affected by sleep duration, physical activity, outdoor activity time, and genetic susceptibility. METHODS A total of 471,686 participants without diabetes were recruited from the UK Biobank cohort. T2D incidence was assessed using hospital inpatient records. Blue light exposure was calculated based on the time spent watching TV, using a computer, and playing computer games, which was determined using an online questionnaire. Cox proportional hazards regression models were used to assess the survival relationship between blue light exposure and T2D, as well as the potential modification effects. RESULT A total of 18,738 cases of T2D were documented during the median follow-up of 13.04 years. After adjusting for potential confounders, the participants with heavy blue light exposure had a greater risk of T2D compared to those with mild blue light exposure (hazard ratio (HR) = 1.17, 95% confidence interval (CI): 1.12-1.23). A significant association between blue light exposure and T2D risk was observed among the participants with heavy physical activity (HR = 1.39, 95%CI: 1.25-1.55), healthy sleep habits (HR = 1.23, 95%CI: 1.10-1.36), higher outdoor activity time (HR = 1.14, 95%CI: 1.07-1.22), or high genetic susceptibility (HR = 1.24, 95%CI: 1.14-1.35). However, this association became non-significant among the participants with low genetic susceptibility (HR = 1.05, 95%CI: 0.97-1.15). CONCLUSION The present study showed that blue light exposure is associated with a greater risk of T2D independent of classical T2D risk factors.
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Affiliation(s)
- Cheng Wang
- Department of Environmental Hygiene, School of Public Health, Harbin Medical University, Harbin 150081, China
| | - Yang Zhao
- Department of Environmental Hygiene, School of Public Health, Harbin Medical University, Harbin 150081, China
| | - Qianqi Hong
- Department of Environmental Hygiene, School of Public Health, Harbin Medical University, Harbin 150081, China; Harbin Center for Disease Control and Prevention, Harbin 150056, China
| | - Yating Lei
- Department of Occupational Health, Public Health College, Harbin Medical University, Harbin150081, China
| | - Shengyuan Wang
- Department of Occupational Health, Public Health College, Harbin Medical University, Harbin150081, China
| | - Weiqi Wang
- Department of Environmental Hygiene, School of Public Health, Harbin Medical University, Harbin 150081, China
| | - Wei Wei
- The National Key Discipline, Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, Harbin 150081, China; Key Laboratory of Precision Nutrition and Health, Ministry of Education, China
| | - Changhao Sun
- The National Key Discipline, Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, Harbin 150081, China; Key Laboratory of Precision Nutrition and Health, Ministry of Education, China.
| | - Tianshu Han
- The National Key Discipline, Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, Harbin 150081, China; Key Laboratory of Precision Nutrition and Health, Ministry of Education, China.
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17
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Carta MG, Fornaro M, Primavera D, Nardi AE, Karam E. Dysregulation of mood, energy, and social rhythms syndrome (DYMERS): A working hypothesis. J Public Health Res 2024; 13:22799036241248022. [PMID: 38680762 PMCID: PMC11047225 DOI: 10.1177/22799036241248022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Accepted: 04/02/2024] [Indexed: 05/01/2024] Open
Abstract
A syndrome centered on the dysregulation of behavioral rhythms (DBR) is discussed. Recent pandemic brought to observe: (1) Having a DBR affecting sleep patterns, eating habits, and social interactions, before the lockdown period, was a determinant for depressive episodes during the lockdown; (2) In tighter lockdowns, DBR triggered depressive episodes in bipolar patients; (3) DBR in healthcare workers under pressure was a determinant of burnout; (4) DBR influenced the course of chronic diseases by altering immune responses. In addition, it was found that scoring positive on the Mood Disorder Questionnaire (MDQ) was closely associated with the dysregulation of sleep rhythms. MDQ is a screening tool for bipolar disorder (BD), criticized for detecting too many false positives. Studies showed that positivity to the MDQ implied a severe impairment of quality of life even in people without psychiatric diagnoses. According to this evidence, three different hyperactivation levels could be proposed (from normality to pathology): firstly, an adaptive increase in energy (e.g. athletes performing well); secondly, a DBR determined from the continuous stimulation of stress hormones, with possible positive scores on the MDQ without a diagnosis of bipolar disorder, like in burnout syndromes and, thirdly, hyperactivity during manic episodes. The Dysregulation of Mood, Energy, and Social Rhythms Syndrome (DYMERS), the second level of the scale, is proposed as a working hypothesis. DYMERS is also seen as a vulnerable condition that may evolve in other disorders (including BD) according to the individual susceptibility (including genetic predisposition) and the specific nature/level of the stressor.
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Affiliation(s)
| | - Michele Fornaro
- Section of Psychiatry - Department of Neuroscience, Reproductive Sciences, and Dentistry, University School of Medicine Federico II, Naples, Italy
| | - Diego Primavera
- Department of Medical Sciences and Public Health, University of Cagliari, Italy
| | - Antonio Egidio Nardi
- Laboratory Panic and Respiration, Institute of Psychiatry (IPUB), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Elie Karam
- Institute for Development, Research, Advocacy and Applied Care (IDRAAC), Beirut, Lebanon and Department of Psychiatry and Clinical Psychology, St Georges University of Beirut, Beirut, Lebanon
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18
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Mahoney HL, Schmidt TM. The cognitive impact of light: illuminating ipRGC circuit mechanisms. Nat Rev Neurosci 2024; 25:159-175. [PMID: 38279030 DOI: 10.1038/s41583-023-00788-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/19/2023] [Indexed: 01/28/2024]
Abstract
Ever-present in our environments, light entrains circadian rhythms over long timescales, influencing daily activity patterns, health and performance. Increasing evidence indicates that light also acts independently of the circadian system to directly impact physiology and behaviour, including cognition. Exposure to light stimulates brain areas involved in cognition and appears to improve a broad range of cognitive functions. However, the extent of these effects and their mechanisms are unknown. Intrinsically photosensitive retinal ganglion cells (ipRGCs) have emerged as the primary conduit through which light impacts non-image-forming behaviours and are a prime candidate for mediating the direct effects of light on cognition. Here, we review the current state of understanding of these effects in humans and mice, and the tools available to uncover circuit-level and photoreceptor-specific mechanisms. We also address current barriers to progress in this area. Current and future efforts to unravel the circuits through which light influences cognitive functions may inform the tailoring of lighting landscapes to optimize health and cognitive function.
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Affiliation(s)
- Heather L Mahoney
- Department of Neurobiology, Northwestern University, Evanston, IL, USA.
| | - Tiffany M Schmidt
- Department of Neurobiology, Northwestern University, Evanston, IL, USA.
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19
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Zhu S, Chen G, Liu Y, Dong GH, Yang BY, Wang L, Li N, Li S, Tan J, Guo Y. Outdoor light at night and depressive symptoms in male veterans: a multicenter cross-sectional study in China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2024; 34:1615-1626. [PMID: 37401722 DOI: 10.1080/09603123.2023.2230922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 06/25/2023] [Indexed: 07/05/2023]
Abstract
Previous studies have indicated depression was associated with environmental exposures, but evidence is limited for the association between outdoor light at night (LAN) and depression. This study aims to examine the association between long-term outdoor LAN exposure and depressive symptoms using data from the Chinese Veteran Clinical Research platform. A total of 6445 male veterans were selected from 277 veteran communities in 18 cities of China during 2009‒2011. Depressive symptoms were evaluated using the Chinese version of the Center for Epidemiological Studies Depression scale. Outdoor LAN was estimated using the Global Radiance Calibrated Nighttime Lights data. The odds ratio and 95% confidence intervals of depressive symptoms at the high level of outdoor LAN exposure against the low level during the 1 years before the investigation was 1.49 (1.15, 1.92) with p-value for trend < 0.01, and those associated with per interquartile range increase in LAN exposure was 1.22 (1.06, 1.40).
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Affiliation(s)
- Shifu Zhu
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Gongbo Chen
- Climate, Air Quality Research Unit, School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
| | - Yuewei Liu
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Guang-Hui Dong
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Bo-Yi Yang
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Luning Wang
- Geriatric Neurology Department of the Second Medical Center & National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China
| | - Nan Li
- Research Center of Clinical Epidemiology, Peking University Third Hospital, Beijing, China
| | - Shanshan Li
- Climate, Air Quality Research Unit, School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
| | - Jiping Tan
- Geriatric Neurology Department of the Second Medical Center & National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China
| | - Yuming Guo
- Climate, Air Quality Research Unit, School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
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20
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Mattam S, Thomas RH, Akansha EO, Jathanna JS, Poojary RR, Sarpangala S, Jose J, Theruveethi N. Influence of white-light-emitting diodes on primary visual cortex layer 5 pyramidal neurons (V1L5PNs) and remodeling by blue-light-blocking lenses. Int Ophthalmol 2024; 44:118. [PMID: 38416231 PMCID: PMC10901925 DOI: 10.1007/s10792-024-03036-6] [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: 11/24/2022] [Accepted: 01/12/2024] [Indexed: 02/29/2024]
Abstract
Studies have explored the consequences of excessive exposure to white-light-emitting diodes (LEDs) in the retina. Hence, we aimed to assess the implications of such exposure on structural alterations of the visual cortex, learning and memory, and amelioration by blue-light-blocking lenses (BBLs). Eight-week-old Wistar rats (n = 24) were used for the experiment and divided into four groups (n = 6 in each group) as control, white LED light exposure (LE), BBL Crizal Prevencia-1 (CP), and DuraVision Blue-2 (DB). Animals in the exposure group were exposed to white LED directly for 28 days (12:12-h light/dark cycle), whereas animals in the BBL groups were exposed to similar light with BBLs attached to the LEDs. Post-exposure, a Morris water maze was performed for memory retention, followed by structural analysis of layer 5 pyramidal neurons in the visual cortex. We observed a significant difference (P < 0.001) in the functional test on day 1 and day 2 of training in the LE group. Structural analysis of Golgi-Cox-stained visual cortex layer 5 pyramidal neurons showed significant alterations in the apical and basal branching points (p < 0.001) and basal intersection points (p < 0.001) in the LE group. Post hoc analysis revealed significant changes between (p < 0.001) LE and CP and (p < 0.001) CP and DB groups. Constant and cumulative exposure to white LEDs presented with structural and functional alterations in the visual cortex, which are partly remodeled by BBLs.
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Affiliation(s)
- Susmitha Mattam
- Department of Optometry, Manipal College of Health Professions, Manipal Academy of Higher Education, Manipal, 576104, India
- Sankara College of Optometry, Hyderabad, 500032, India
| | - R Huban Thomas
- Department of Anatomy, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Elizebeth O Akansha
- Department of Optometry, Manipal College of Health Professions, Manipal Academy of Higher Education, Manipal, 576104, India
- University of Houston College of Optometry, Houston, USA
| | - Judith S Jathanna
- Department of Optometry, Manipal College of Health Professions, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Radhika R Poojary
- Department of Optometry, Manipal College of Health Professions, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Shailaja Sarpangala
- Department of Ophthalmology, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Judy Jose
- Department of Optometry, Manipal College of Health Professions, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Nagarajan Theruveethi
- Department of Optometry, Manipal College of Health Professions, Manipal Academy of Higher Education, Manipal, 576104, India.
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21
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Alaasam VJ, Hui C, Lomas J, Ferguson SM, Zhang Y, Yim WC, Ouyang JQ. What happens when the lights are left on? Transcriptomic and phenotypic habituation to light pollution. iScience 2024; 27:108864. [PMID: 38318353 PMCID: PMC10839644 DOI: 10.1016/j.isci.2024.108864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 10/30/2023] [Accepted: 01/08/2024] [Indexed: 02/07/2024] Open
Abstract
Artificial light at night (ALAN) is a ubiquitous pollutant worldwide. Exposure can induce immediate behavioral and physiological changes in animals, sometimes leading to severe health consequences. Nevertheless, many organisms persist in light-polluted environments and may have mechanisms of habituating, reducing responses to repeated exposure over time, but this has yet to be tested experimentally. Here, we tested whether zebra finches (Taeniopygia guttata) can habituate to dim (0.3 lux) ALAN, measuring behavior, physiology (oxidative stress and telomere attrition), and gene expression in a repeated measures design, over 6 months. We present evidence of tolerance to chronic exposure, persistent behavioral responses lasting 8 weeks post-exposure, and attenuation of responses to re-exposure. Oxidative stress decreased under chronic ALAN. Changes in the blood transcriptome revealed unique responses to past exposure and re-exposure. Results demonstrate organismal resilience to chronic stressors and shed light on the capacity of birds to persist in an increasingly light-polluted world.
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Affiliation(s)
| | - Cassandra Hui
- Department of Biology, University of Nevada-Reno, Reno 89503, NV, USA
| | - Johnathan Lomas
- Department of Biochemistry & Molecular Biology, University of Nevada-Reno, Reno 89503, NV, USA
| | | | - Yong Zhang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Cambridge-Suda Genomic Resource Center, Suzhou Medical College, Soochow University, Suzhou 215123, China
| | - Won Cheol Yim
- Department of Biochemistry & Molecular Biology, University of Nevada-Reno, Reno 89503, NV, USA
| | - Jenny Q. Ouyang
- Department of Biology, University of Nevada-Reno, Reno 89503, NV, USA
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22
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Yáñez-Gómez F, Gálvez-Melero L, Ledesma-Corvi S, Bis-Humbert C, Hernández-Hernández E, Salort G, García-Cabrerizo R, García-Fuster MJ. Evaluating the daily modulation of FADD and related molecular markers in different brain regions in male rats. J Neurosci Res 2024; 102:e25296. [PMID: 38361411 DOI: 10.1002/jnr.25296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 12/22/2023] [Accepted: 01/02/2024] [Indexed: 02/17/2024]
Abstract
Fas-Associated protein with Death Domain (FADD), a key molecule controlling cell fate by balancing apoptotic versus non-apoptotic functions, is dysregulated in post-mortem brains of subjects with psychopathologies, in animal models capturing certain aspects of these disorders, and by several pharmacological agents. Since persistent disruptions in normal functioning of daily rhythms are linked with these conditions, oscillations over time of key biomarkers, such as FADD, could play a crucial role in balancing the clinical outcome. Therefore, we characterized the 24-h regulation of FADD (and linked molecular partners: p-ERK/t-ERK ratio, Cdk-5, p35/p25, cell proliferation) in key brain regions for FADD regulation (prefrontal cortex, striatum, hippocampus). Samples were collected during Zeitgeber time (ZT) 2, ZT5, ZT8, ZT11, ZT14, ZT17, ZT20, and ZT23 (ZT0, lights-on or inactive period; ZT12, lights-off or active period). FADD showed similar daily fluctuations in all regions analyzed, with higher values during lights off, and opposite to p-ERK/t-ERK ratios regulation. Both Cdk-5 and p35 remained stable and did not change across ZT. However, p25 increased during lights off, but exclusively in striatum. Finally, no 24-h modulation was observed for hippocampal cell proliferation, although higher values were present during lights off. These results demonstrated a clear daily modulation of FADD in several key brain regions, with a more prominent regulation during the active time of rats, and suggested a key role for FADD, and molecular partners, in the normal physiological functioning of the brain's daily rhythmicity, which if disrupted might participate in the development of certain pathologies.
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Affiliation(s)
- Fernando Yáñez-Gómez
- IUNICS, University of the Balearic Islands, Palma, Spain
- Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain
- Department of Medicine, University of the Balearic Islands, Palma, Spain
| | - Laura Gálvez-Melero
- IUNICS, University of the Balearic Islands, Palma, Spain
- Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain
| | - Sandra Ledesma-Corvi
- IUNICS, University of the Balearic Islands, Palma, Spain
- Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain
| | - Cristian Bis-Humbert
- IUNICS, University of the Balearic Islands, Palma, Spain
- Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain
| | - Elena Hernández-Hernández
- IUNICS, University of the Balearic Islands, Palma, Spain
- Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain
| | - Glòria Salort
- IUNICS, University of the Balearic Islands, Palma, Spain
- Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain
| | - Rubén García-Cabrerizo
- IUNICS, University of the Balearic Islands, Palma, Spain
- Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain
- Department of Medicine, University of the Balearic Islands, Palma, Spain
| | - M Julia García-Fuster
- IUNICS, University of the Balearic Islands, Palma, Spain
- Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain
- Department of Medicine, University of the Balearic Islands, Palma, Spain
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Primavera D, Aviles Gonzalez CI, Romano F, Kalcev G, Pinna S, Minerba L, Scano A, Orrù G, Cossu G. Does the Response to a Stressful Condition in Older Adults with Life Rhythm Dysregulations Provide Evidence of the Existence of the "Dysregulation of Mood, Energy, and Social Rhythms Syndrome"? Healthcare (Basel) 2023; 12:87. [PMID: 38200993 PMCID: PMC10778618 DOI: 10.3390/healthcare12010087] [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: 10/11/2023] [Revised: 12/21/2023] [Accepted: 12/22/2023] [Indexed: 01/12/2024] Open
Abstract
OBJECTIVE The COVID-19 lockdown periods have given rise to the "Dysregulation of Mood, Energy, and Social Rhythms Syndrome" (DYMERS). This syndrome is characterized by a poor regulation of biological, social, and behavioral rhythms, including sleep, nutrition, and social contacts. The purpose of this cohort study was to examine whether older adults with pre-existing DYMERS had a more negative perception of their health-related quality of life (H-QoL) during the COVID-19 pandemic lockdown, regardless of the presence of concurrent mood disorders. METHOD The entire study population (N = 93; age > 65 year) was categorized based on whether they exhibited dysregulated rhythms at the outset of the study. A comparison was made between DYMERS-positive individuals and DYMERS-negative individuals, and we assessed their H-QoL at the conclusion of the study. We also compared the H-QoL of individuals in the cohort who did not have a positive depression score to understand the impact of the rhythm dysregulation alone. RESULTS The frequency of individuals with a critical health-related quality of life score (SF12 < 25) was higher in the cohort with pre-existing DYMERS during lockdown (33.33% vs. 6.17%). This difference remained significant even when only individuals without depressive symptomatology were considered (27.27% vs. 2.60%). CONCLUSION The results of this study indicate that DYMERS can exert a substantial influence on health-related quality of life (H-QoL), even when mood disturbances are not present. Additional research is required to investigate the relationship between DYMERS and other psychiatric conditions as well as its nature as a standalone disorder.
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Affiliation(s)
- Diego Primavera
- Department of Medical Sciences and Public Health, University of Cagliari, 09042 Cagliari, Italy; (D.P.); (G.K.); (S.P.); (L.M.)
| | - Cesar Ivan Aviles Gonzalez
- Department of Medical Sciences and Public Health, University of Cagliari, 09042 Cagliari, Italy; (D.P.); (G.K.); (S.P.); (L.M.)
- Nursing Program, Faculty of Health Sciences, Universidad Popular del Cesar, Valledupar 200002, Colombia
| | - Ferdinando Romano
- Chair of Public Health, La Sapienza University, Rome, Italy 00185 Rome, Italy;
| | - Goce Kalcev
- Department of Medical Sciences and Public Health, University of Cagliari, 09042 Cagliari, Italy; (D.P.); (G.K.); (S.P.); (L.M.)
| | - Samantha Pinna
- Department of Medical Sciences and Public Health, University of Cagliari, 09042 Cagliari, Italy; (D.P.); (G.K.); (S.P.); (L.M.)
| | - Luigi Minerba
- Department of Medical Sciences and Public Health, University of Cagliari, 09042 Cagliari, Italy; (D.P.); (G.K.); (S.P.); (L.M.)
| | - Alessandra Scano
- Department of Surgical Sciences, University of Cagliari, 09042 Cagliari, Italy; (A.S.); (G.O.)
| | - Germano Orrù
- Department of Surgical Sciences, University of Cagliari, 09042 Cagliari, Italy; (A.S.); (G.O.)
| | - Giulia Cossu
- Department of Medical Sciences and Public Health, University of Cagliari, 09042 Cagliari, Italy; (D.P.); (G.K.); (S.P.); (L.M.)
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24
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Carr C, Borges D, Lewis K, Heron J, Wilson S, Broome MR, Jones I, Di Florio A, Morales-Muñoz I. Sleep and Postpartum Psychosis: A Narrative Review of the Existing Literature. J Clin Med 2023; 12:7550. [PMID: 38137618 PMCID: PMC10744103 DOI: 10.3390/jcm12247550] [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: 10/19/2023] [Revised: 12/01/2023] [Accepted: 12/05/2023] [Indexed: 12/24/2023] Open
Abstract
Sleep problems are extremely common during the postpartum period. The role of sleep in the development of postpartum psychosis (PP) is, however, still under-researched. This narrative review aims to (1) provide a summary of the existing evidence for the associations between sleep problems and PP, (2) discuss the relevant risk factors associated with sleep problems and PP, and (3) suggest future lines of research in this area. Some of the existing literature suggests an association between sleep problems, specifically insomnia, sleep loss and sleep disruption during pregnancy and postpartum, and PP, with the most relevant risk factors including history of bipolar disorder and time of delivery. However, it is still unclear whether the previously mentioned sleep problems are a symptom of, or a trigger for PP. Thus, further research is needed to identify the specific role of sleep problems in PP, using longitudinal designs and more objective measures of sleep. This will allow appropriate detection, intervention and support for women experiencing and/or at risk for PP.
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Affiliation(s)
- Camilla Carr
- Institute for Mental Health, School of Psychology, University of Birmingham, Birmingham B15 2TT, UK; (C.C.); (D.B.)
| | - Daniela Borges
- Institute for Mental Health, School of Psychology, University of Birmingham, Birmingham B15 2TT, UK; (C.C.); (D.B.)
- Coventry and Warwickshire Partnership NHS Trust, Coventry CV6 6NY, UK
| | - Katie Lewis
- Division of Psychological Medicine and Clinical Neuroscience, Cardiff University, Cardiff CF24 4HQ, UK
| | - Jessica Heron
- Institute for Mental Health, School of Psychology, University of Birmingham, Birmingham B15 2TT, UK; (C.C.); (D.B.)
- Action on Postpartum Psychosis, Swansea SA3 9BT, UK
| | - Sally Wilson
- Action on Postpartum Psychosis, Swansea SA3 9BT, UK
| | - Matthew R. Broome
- Institute for Mental Health, School of Psychology, University of Birmingham, Birmingham B15 2TT, UK; (C.C.); (D.B.)
- Birmingham Women’s and Children’s NHS Foundation Trust, Birmingham B4 6NH, UK
| | - Ian Jones
- Division of Psychological Medicine and Clinical Neuroscience, Cardiff University, Cardiff CF24 4HQ, UK
| | - Arianna Di Florio
- Division of Psychological Medicine and Clinical Neuroscience, Cardiff University, Cardiff CF24 4HQ, UK
| | - Isabel Morales-Muñoz
- Institute for Mental Health, School of Psychology, University of Birmingham, Birmingham B15 2TT, UK; (C.C.); (D.B.)
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25
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Tong JCK, Wun AHL, Chan TTH, Lau ESL, Lau ECF, Chu HHK, Lau APS. Simulation of vertical dispersion and pollution impact of artificial light at night in urban environment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 902:166101. [PMID: 37558066 DOI: 10.1016/j.scitotenv.2023.166101] [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: 07/31/2023] [Accepted: 08/05/2023] [Indexed: 08/11/2023]
Abstract
The use of artificial light at night (ALAN) enables social and commercial activities for urban living. However, the excessive usage of lighting causes nuisance and waste of energy. Light is provided to illuminate target areas on the street level where activities take place, yet light can also cause trespass to residents at the floors above. While regulations are beginning to cover light design, simulation tools for the outdoor environment have also become more popular for assessing the design condition. Simulation tools allow visualisation of the impact of the selected light sources on those who are affected. However, this cause-and-effect relationship is not easy to determine in the complex urban environment. The current work offers a simple methodology that takes site survey results and correlates them with the simulation model to determine lighting impact on the investigated area in 3D. Four buildings in two mixed commercial and residential streets in Hong Kong were studied. Data collection from each residential building requires lengthy work and permission from each household. Therefore, a valid lighting simulation model could help determine the light pollution impact in the area. A light model using DIALux is developed and calibrated by correlating the simulated data with the actual measured data. The correlation value R2 achieved ranged from 0.95 to 0.99, verifying the accuracy of this model and matched from 340 lx to 46 lx for the lower to higher floors of one building and 10 lx to 4 lx for floors of another building. This model can also be applied to human health research, by providing light-level data on residential windows in an area or determining the environmental impact of a development project.
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Affiliation(s)
- Jimmy C K Tong
- Sustainability, Arup, Hong Kong, Level 5 Festival Walk, 80 Tat Chee Avenue, Kowloon Tong, Kowloon, Hong Kong.
| | - Anthonio H L Wun
- The Green Earth, Hong Kong, Room 703, 7/F, Kwai Cheong Centre, No.50 Kwai Cheong Road, Kwai Chung, Hong Kong.
| | - Thomas T H Chan
- The Green Earth, Hong Kong, Room 703, 7/F, Kwai Cheong Centre, No.50 Kwai Cheong Road, Kwai Chung, Hong Kong.
| | - Edmond S L Lau
- The Green Earth, Hong Kong, Room 703, 7/F, Kwai Cheong Centre, No.50 Kwai Cheong Road, Kwai Chung, Hong Kong.
| | - Edwin C F Lau
- The Green Earth, Hong Kong, Room 703, 7/F, Kwai Cheong Centre, No.50 Kwai Cheong Road, Kwai Chung, Hong Kong.
| | - Hahn H K Chu
- The Green Earth, Hong Kong, Room 703, 7/F, Kwai Cheong Centre, No.50 Kwai Cheong Road, Kwai Chung, Hong Kong.
| | - Arthur P S Lau
- Division of Environment and Sustainability, The Hong Kong University of Science and Technology, Hong Kong, Clear Water Bay, Kowloon, Hong Kong.
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26
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Kumar A, Prabhat A, Kumar V, Bhardwaj SK. Artificial night illumination disrupts sleep, and attenuates mood and learning in diurnal animals: evidence from behavior and gene expression studies in zebra finches. Photochem Photobiol Sci 2023; 22:2247-2257. [PMID: 37329435 DOI: 10.1007/s43630-023-00447-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 06/06/2023] [Indexed: 06/19/2023]
Abstract
This study investigated the effects of an illuminated night on sleep, mood, and cognitive performance in non-seasonal diurnal zebra finches that were exposed for 6 weeks to an ecologically relevant dimly lit night (12L:12dLAN; 150 lx: 5 lx) with controls on the dark night (12L:12D; 150 lx: < 0.01 lx). Food and water were provided ad libitum. Under dLAN (dim light at night), birds showed disrupted nocturnal (frequent awakenings) and overall decreased sleep duration. They also exhibited a compromised novel object exploration, a marker of the bird's mood state, and committed more errors, took significantly longer duration to learn with low retrieval performance of the learned task when tested for a color-discrimination (learning) task under the dLAN. Further, compared to controls, there was reduced mRNA expression level of genes involved in the neurogenesis, neural plasticity (bdnf, dcx and egr1) and motivation (th, drd2, taar1 and htr2c; dopamine synthesis and signaling genes) in the brain (hippocampus (HP), nidopallium caudolaterale (NCL), and midbrain) of birds under dLAN. These results show concurrent negative behavioral and molecular neural effects of the dimly illuminated nights, and provide insights into the possible impact on sleep and mental health in diurnal species inhabiting an increasingly urbanized ecosystem.
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Affiliation(s)
- Ashwani Kumar
- Department of Zoology, Chaudhary Charan Singh University, Meerut, Uttar Pradesh, 250004, India
| | - Abhilash Prabhat
- Department of Zoology, Chaudhary Charan Singh University, Meerut, Uttar Pradesh, 250004, India
| | - Vinod Kumar
- Department of Zoology, University of Delhi, Delhi, 110007, India
| | - Sanjay Kumar Bhardwaj
- Department of Zoology, Chaudhary Charan Singh University, Meerut, Uttar Pradesh, 250004, India.
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27
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Sangma JT, Trivedi AK. Light at night: effect on the daily clock, learning, memory, cognition, and expression of transcripts in different brain regions of rat. Photochem Photobiol Sci 2023; 22:2297-2314. [PMID: 37337065 DOI: 10.1007/s43630-023-00451-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 06/12/2023] [Indexed: 06/21/2023]
Abstract
The rapid increase in urbanization is altering the natural composition of the day-night light ratio. The light/dark cycle regulates animal learning, memory, and mood swings. A study was conducted to examine the effect of different quantity and quality of light at night on the daily clock, learning, memory, cognition, and expression of transcripts in key learning centers. Treatment was similar for experiments one to three. Rats were exposed for 30 days to 12 h light and 12 h dark with a night light of 2 lx (dLAN group), 250 lx (LL), or without night light (LD). In experiment one, after 28 days, blood samples were collected and 2 days later, animals were exposed to constant darkness. In experiment two, after 30 days of treatment, animals were subjected to various tests involving learning, memory, and cognition. In experiment three, after 30 days of treatment, animals were sampled, and transcript levels of brain-derived neurotrophic factor, tyrosine kinase, Growth-Associated Protein 43, Neurogranin, microRNA-132, cAMP Response Element-Binding Protein, Glycogen synthase kinase-3β, and Tumor necrosis factor α were measured in hippocampus, thalamus, and cortex tissues. In experiment four, animals were exposed to night light of 0.019 W/m2 but of either red (640 nm), green (540 nm), or blue (450 nm) wavelength for 30 days, and similar tests were performed as mentioned in experiment 2. While in experiment five, after 30 days of respective wavelength treatments, all animals were sampled for gene expression studies. Our results show that exposure to dLAN and LL affects the daily clock as reflected by altered melatonin secretion and locomotor activity, compromises the learning, memory, and cognitive ability, and alterations in the expression levels of transcripts in the hypothalamus, cortex, and thalamus. The effect is night light intensity dependent. Further, blue light at night has less drastic effects than green and red light. These results could be of the potential use of framing the policies for the use of light at night.
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Affiliation(s)
- James T Sangma
- Department of Zoology, Mizoram University, Aizawl, Mizoram, 796004, India
| | - Amit K Trivedi
- Department of Zoology, Mizoram University, Aizawl, Mizoram, 796004, India.
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28
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Ajayi OM, Wynne NE, Chen SC, Vinauger C, Benoit JB. Sleep: An Essential and Understudied Process in the Biology of Blood-Feeding Arthropods. Integr Comp Biol 2023; 63:530-547. [PMID: 37429615 PMCID: PMC10503478 DOI: 10.1093/icb/icad097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 07/01/2023] [Accepted: 07/03/2023] [Indexed: 07/12/2023] Open
Abstract
Understanding the biology of blood-feeding arthropods is critical to managing them as vectors of etiological agents. Circadian rhythms act in the regulation of behavioral and physiological aspects such as blood feeding, immunity, and reproduction. However, the impact of sleep on these processes has been largely ignored in blood-feeding arthropods, but recent studies in mosquitoes show that sleep-like states directly impact host landing and blood feeding. Our focus in this review is on discussing the relationship between sleep and circadian rhythms in blood-feeding arthropods along with how unique aspects such as blood gluttony and dormancy can impact sleep-like states. We highlight that sleep-like states are likely to have profound impacts on vector-host interactions but will vary between lineages even though few direct studies have been conducted. A myriad of factors, such as artificial light, could directly impact the time and levels of sleep in blood-feeding arthropods and their roles as vectors. Lastly, we discuss underlying factors that make sleep studies in blood-feeding arthropods difficult and how these can be bypassed. As sleep is a critical factor in the fitness of animal systems, a lack of focus on sleep in blood-feeding arthropods represents a significant oversight in understanding their behavior and its role in pathogen transmission.
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Affiliation(s)
- Oluwaseun M Ajayi
- Department of Biological Sciences, University of Cincinnati, Cincinnati, OH 45221, USA
| | - Nicole E Wynne
- Department of Biochemistry, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - Shyh-Chi Chen
- Department of Biological Sciences, University of Cincinnati, Cincinnati, OH 45221, USA
| | - Clément Vinauger
- Department of Biochemistry, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - Joshua B Benoit
- Department of Biological Sciences, University of Cincinnati, Cincinnati, OH 45221, USA
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29
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Huang F, Huang Q, Zheng L, Zhang W, Yang Q, Yang J, Wang Y, Wang Z, Li W, Zeng L, Li S. Effect of 40 Hz light flicker on behaviors of adult C57BL/6J mice. Brain Res 2023; 1814:148441. [PMID: 37271490 DOI: 10.1016/j.brainres.2023.148441] [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: 03/20/2023] [Revised: 05/18/2023] [Accepted: 05/30/2023] [Indexed: 06/06/2023]
Abstract
40 Hz light flicker can activate multiple brain regions of wild-type mice. However, there are no systematic studies on the behavioral effects of 40 Hz light flicker on wild-type mice. Adult wild-type C57BL/6J mice were treated with 40 Hz light flicker (200 lx, 40 Hz, 1 h/day for 3 weeks) to evaluate its effects on several behaviors, including mood, locomotor activity, memory, social interaction, mechanical pain, and sense of smell. In the open field test, the elevated zero-maze test, forced swimming test, and tail suspension test, 40 Hz mice showed no anxiety and depression-like behaviors. In the rotarod test, no differences were found between the anti-fatigue ability and motor coordination ability. In memory-related tests, 40 Hz mice showed the short-term cognitive enhancement in the novel object recognition test. Interestingly, 40 Hz mice showed no enhanced the long-term memory performance in the contextual fear conditioning test, and tone-cued fear conditioning test. Besides, 40 Hz mice increased their exploration of social cues that were unfamiliar to them and differed significantly from their own experiences. In terms of sensory abilities, 40 Hz mice had unchanged pain sensitivity in the von Frey fiber test and significant enhancement in the olfactory ability in the food-seeking test. In conclusion, this 40 Hz light stimulation paradigm has high safety and can improve the specific behavioral ability, which provides a theoretical basis for the future use of 40 Hz light flicker as a disease prevention or treatment method.
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Affiliation(s)
- Fankai Huang
- Department of Basic Medicine, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang 310015, China
| | - Qiankai Huang
- Department of Basic Medicine, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang 310015, China
| | - Leyan Zheng
- Department of Basic Medicine, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang 310015, China
| | - Wenchong Zhang
- Department of Basic Medicine, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang 310015, China
| | - Qi Yang
- Department of Basic Medicine, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang 310015, China; School of Pharmacy, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Jing Yang
- Department of Basic Medicine, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang 310015, China; Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang 310015, China
| | - Yu Wang
- Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Zhong Wang
- Zhejiang Qianjiahui Electric Appliance Equipment Co., Ltd, Wenling Taizhou City, Zhejiang, China
| | - Weiyun Li
- Department of Basic Medicine, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang 310015, China; Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang 310015, China.
| | - Linghui Zeng
- Department of Basic Medicine, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang 310015, China; Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang 310015, China.
| | - Shanshan Li
- Department of Basic Medicine, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang 310015, China; Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang 310015, China.
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30
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Lee EH, Park JE, Gotina L, Han YE, Viswanath ANI, Yoo S, Moon B, Hwang JY, Park WK, Cho Y, Song C, Min SJ, Hwang EM, Lee H, Pae AN, Roh EJ, Oh SJ. Novel potent blockers for TWIK-1/TREK-1 heterodimers as potential antidepressants. Biomed Pharmacother 2023; 165:115139. [PMID: 37454597 DOI: 10.1016/j.biopha.2023.115139] [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: 05/09/2023] [Revised: 06/23/2023] [Accepted: 07/07/2023] [Indexed: 07/18/2023] Open
Abstract
TREK-1 (TWIK-related potassium channel-1) is a subunit of the two-pore domain potassium (K2p) channel and is widely expressed in the brain. TREK-1 knockout mice were shown to have antidepressant-like effects, providing evidence for the channel's potential as a therapeutic target. However, currently there is no good pharmacological inhibitor specifically targeting TREK-1 containing K2p channels that also displays similar antidepressant-like effects. Here, we sought to find selective and potent inhibitors for TREK-1 related dimers both in vitro and in vivo. We synthesized and evaluated 2-hydroxy-3-phenoxypropyl piperidine derivatives yielding a library from which many TREK-1 targeting candidates emerged. Among these, hydroxyl-phenyl- (2a), piperidino- (2g), and pyrrolidino- (2h) piperidinyl substituted compounds showed high potencies to TREK-1 homodimers with significant antidepressant-like effects in forced swim test and tail suspension test. Interestingly, these compounds were found to have high potencies to TWIK-1/TREK-1 heterodimers. Contrastingly, difluoropiperidinyl-4-fluorophenoxy (3e) and 4-hydroxyphenyl-piperidinyl-4-fluorophenoxy (3j) compounds had high potencies to TREK-1 homodimer but lower potency to TWIK-1/TREK-1 heterodimers without significant antidepressant-like effects. We observed positive correlation between inhibition potency to TWIK-1/TREK-1 and immobility time, and no correlation between inhibition potency to TREK-1 homodimer and immobility time. This was consistent with molecular docking simulations of selected compounds to TREK-1 homodimeric and TWIK-1/TREK-1 heterodimeric models. Existing antidepressant fluoxetine was also found to potently inhibit TWIK-1/TREK-1 heterodimers. Our study reveals novel potent TWIK-1/TREK-1 inhibitors 2a, 2g, and 2h as potential antidepressants and suggest that the TWIK-1/TREK-1 heterodimer could be a potential novel molecular therapeutic target for antidepressants.
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Affiliation(s)
- Elliot H Lee
- Brain Science Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea; Department of Anesthesiology and Pain Medicine, SMG-SNU Boramae Medical Center, College of Medicine, Seoul National University, Seoul, Republic of Korea
| | - Jung-Eun Park
- Chemical Kinomics Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea; Department of Chemistry, Sogang University, Baekbeomno 35, Mapo-gu, Seoul, Republic of Korea
| | - Lizaveta Gotina
- Brain Science Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea; Division of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology, Seoul 02792, Republic of Korea
| | - Young-Eun Han
- Brain Science Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Ambily Nath Indu Viswanath
- Brain Science Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea; Division of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology, Seoul 02792, Republic of Korea
| | - Seonguk Yoo
- Center for Advanced Biomolecular Recognition, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea; Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Bongjin Moon
- Department of Chemistry, Sogang University, Baekbeomno 35, Mapo-gu, Seoul, Republic of Korea
| | - Jin-Young Hwang
- Department of Anesthesiology and Pain Medicine, SMG-SNU Boramae Medical Center, College of Medicine, Seoul National University, Seoul, Republic of Korea
| | - Woo Kyu Park
- Rare Disease Therapeutic Technology Center, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | - Yoonjeong Cho
- Brain Science Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Chiman Song
- Chemical Kinomics Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea; Division of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology, Seoul 02792, Republic of Korea; Biomedical Research Division, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Sun-Joon Min
- Department of Chemical & Molecular Engineering/Applied Chemistry, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan, Gyeonggi-do 15588, Republic of Korea
| | - Eun Mi Hwang
- Brain Science Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea; Division of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology, Seoul 02792, Republic of Korea
| | - Hyunbeom Lee
- Center for Advanced Biomolecular Recognition, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea; Department of HY-KIST Bio-convergence, Hanyang University, Seoul 04763, Republic of Korea
| | - Ae Nim Pae
- Brain Science Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea; Division of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology, Seoul 02792, Republic of Korea.
| | - Eun Joo Roh
- Chemical Kinomics Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea; Division of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology, Seoul 02792, Republic of Korea.
| | - Soo-Jin Oh
- Brain Science Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea.
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Lunsford-Avery JR. Light regularity: illuminating opportunities to enhance adolescent health. Sleep 2023; 46:zsad086. [PMID: 36975756 PMCID: PMC10424166 DOI: 10.1093/sleep/zsad086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Indexed: 03/29/2023] Open
Affiliation(s)
- Jessica R Lunsford-Avery
- Corresponding author: Jessica R. Lunsford-Avery, Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, 2400 Pratt Street, 7th Floor, Durham, NC 27705, USA.
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Mader IM. Recovery from (treatment-resistant) depression after lifestyle changes and micronutrient precision supplementation: a preliminary field study in patients. BMC Psychol 2023; 11:229. [PMID: 37568156 PMCID: PMC10422823 DOI: 10.1186/s40359-023-01263-7] [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: 11/13/2022] [Accepted: 07/26/2023] [Indexed: 08/13/2023] Open
Abstract
BACKGROUND AND PURPOSE The incidence of depression is increasing, despite continued advances in psychological and pharmacological interventions. New treatment approaches are urgently needed. Here we assess the effects on depression of individualized micronutrient supplementation, in concert with a standard set of lifestyle changes. METHODS We conducted a small field-study with 17 participants in Austria. Patients with depression (n = 11) and healthy volunteers (n = 6) underwent laboratory serum analysis and filled out the DASS-21 and a questionnaire about their medical history and condition. The list of parameters to be tested in the serum analysis was derived from an expert heuristic compilation of factors known to influence depression, narrowed down to a workable list to be tested in this initial study. On the basis of the results, the participants (n = 17) received individualized recommendations for micronutrient supplementation, in collaboration with their treating physician. Participants followed the individual supplementation regime for two months, along with a standard set of lifestyle changes. After two months the laboratory serum analyses, the DASS-21, and the questionnaire were repeated. RESULTS All patients with micronutrient deficiencies were in the patient group; none of the healthy volunteers showed any micronutrient deficiencies. After two months of precision supplementation and lifestyle changes, all but one patient had recovered from their depression or had considerably improved. The one patient who didn't recover was the only one with a known trigger of their depression (trauma). Of 11 patients with depression, the trigger was unknown for the other ten. CONCLUSIONS These results have promising implications for further research, treatment, drug development, and public health. We propose that systematic screening of patients with symptoms of depression be developed for future research, medical care, and practice. Psychiatry and psychotherapy may see improved results once they no longer have to push against the underlying constraints of existing micronutrient deficiencies.
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Siraji MA, Spitschan M, Kalavally V, Haque S. Light exposure behaviors predict mood, memory and sleep quality. Sci Rep 2023; 13:12425. [PMID: 37528146 PMCID: PMC10394000 DOI: 10.1038/s41598-023-39636-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 07/28/2023] [Indexed: 08/03/2023] Open
Abstract
Ample research has shown that light influences our emotions, cognition, and sleep quality. However, little work has examined whether different light exposure-related behaviors, such as daytime exposure to electric light and nighttime usage of gadgets, especially before sleep, influence sleep quality and cognition. Three-hundred-and-one Malaysian adults (MeanAge±SD = 28 ± 9) completed the Light Exposure Behavior Assessment tool that measured five light exposure behaviors. They also completed the Morningness-Eveningness Questionnaire, Positive and Negative Affect Schedule, Pittsburgh Sleep Quality Index, and single items assessing trouble in memory and concentration. A partial least square structural equation model, showing 72.72% predictive power, revealed that less use of wearable blue filters outdoors during the day and more within one hour before sleep predicted early peak time (direct effect = -0.25). Increased time spent outdoors predicted a positive affect (direct effect = 0.33) and a circadian phase advancement (direct effect: rising time = 0.14, peak time = 0.20, retiring time = 0.17). Increased use of mobile phone before sleep predicted a circadian phase delay (direct effect: retiring time = -0.25; rising time = -0.23; peak time = -0.22; morning affect = -0.12), reduced sleep quality (direct effect = 0.13), and increased trouble in memory and concentration (total effect = 0.20 and 0.23, respectively). Increased use of tunable, LED, or dawn-simulating electric light in the morning and daytime predicted a circadian phase advancement (direct effect: peak time = 0.15, morning affect = 0.14, retiring time = 0.15) and good sleep quality (direct effect = -0.16). The results provide valuable insights into developing a healthy light diet to promote health and wellness.
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Affiliation(s)
- Mushfiqul Anwar Siraji
- Department of Psychology, Jeffrey Cheah School of Medicine and Health Sciences and Intelligent Lighting Laboratory, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor Darul Ehsan, Malaysia
| | - Manuel Spitschan
- Max Planck Institute for Biological Cybernetics, Translational Sensory & Circadian Neuroscience, Tübingen, Germany
- Department of Sport and Health Sciences (TUM SG), Technical University of Munich, Munich, Germany
| | - Vineetha Kalavally
- Department of Electrical and Computer Systems Engineering and Intelligent Lighting Laboratory, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor Darul Ehsan, Malaysia
| | - Shamsul Haque
- Department of Psychology, Jeffrey Cheah School of Medicine and Health Sciences and Intelligent Lighting Laboratory, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor Darul Ehsan, Malaysia.
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Collery A, Browne JA, O'Brien C, Sheridan JT, Murphy BA. Optimised Stable Lighting Strengthens Circadian Clock Gene Rhythmicity in Equine Hair Follicles. Animals (Basel) 2023; 13:2335. [PMID: 37508112 PMCID: PMC10376498 DOI: 10.3390/ani13142335] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 07/13/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
Hair follicles (HF) represent a useful tissue for monitoring the circadian clock in mammals. Irregular light exposure causes circadian disruption and represents a welfare concern for stabled horses. We aimed to evaluate the impact of two stable lighting regimes on circadian clock gene rhythmicity in HF from racehorses. Two groups of five Thoroughbred racehorses in training at a commercial racehorse yard were exposed to standard incandescent light or a customized LED lighting system. The control group received light from incandescent bulbs used according to standard yard practice. The treatment group received timed, blue-enriched white LED light by day and dim red LED light at night. On weeks 0 and 20, mane hairs were collected at 4 h intervals for 24 h. Samples were stored in RNAlater at -20 °C. RNA was isolated and samples interrogated by quantitative PCR for the core clock genes: ARNTL, CRY1, PER1, PER2, NR1D2, and the clock-controlled gene DBP. Cosinor analyses revealed 24 h rhythmicity for NR1D2 and PER2 and approached significance for CRY1 (p = 0.013, p = 0.013, and p = 0.051, respectively) in week 20 in the treatment group only. No rhythmicity was detected in week 0 or in week 20 in the HF of control horses. Results suggest that lighting practices in racehorse stables may be improved to better stimulate optimum functioning of the circadian system.
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Affiliation(s)
- Aileen Collery
- School of Agriculture and Food Science, University College Dublin, Belfield, D04 V1W8 Dublin, Co. Dublin, Ireland
| | - John A Browne
- School of Agriculture and Food Science, University College Dublin, Belfield, D04 V1W8 Dublin, Co. Dublin, Ireland
| | | | - John T Sheridan
- School of Electrical, Electronic and Mechanical Engineering, University College Dublin, Belfield, D04 V1W8 Dublin, Co. Dublin, Ireland
| | - Barbara A Murphy
- School of Agriculture and Food Science, University College Dublin, Belfield, D04 V1W8 Dublin, Co. Dublin, Ireland
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35
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Sun X, Tan J, Chen Y, Liu Y, Dong GH, Yang BY, Li N, Wang L, Li S, Chen G, Guo Y. The association between long-term exposure to outdoor artificial light at night and poor sleep quality among Chinese veterans: A multi-city study. Int J Hyg Environ Health 2023; 252:114218. [PMID: 37429120 DOI: 10.1016/j.ijheh.2023.114218] [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: 01/03/2023] [Revised: 06/26/2023] [Accepted: 07/01/2023] [Indexed: 07/12/2023]
Abstract
BACKGROUND A handful of previous studies have reported the association between exposure to outdoor artificial light at night (ALAN) and sleep problems. However, evidence for such association is limited in low- and middle-income countries. This study aimed to examine the association between outdoor ALAN exposure and sleep quality in veterans across different regions of China. METHODS Within the network of the Chinese Veteran Clinical Research Platform, we selected 7258 participants from 277 veteran communities in 18 cities across China during December 2009 and December 2011, using a multi-stage stratified cluster sampling strategy. Face-to-face interviews with the participants were conducted by trained investigators. We used the Pittsburgh Sleep Quality Index (PSQI) to assess participants' sleep quality. We defined poor sleep quality as a PSQI global score >7. The 3-year average exposure to outdoor ALAN prior to the baseline interview was calculated using satellite imagery data, according to participants' geolocation information. The association of ALAN exposure with sleep quality was examined using the mixed-effects logistic regression models with natural cubic splines. RESULTS The exposure-response curve for sleep quality associated with ALAN exposure was nonlinear, with a threshold value of 49.20 nW/cm2/sr for the 3-year average exposure to outdoor ALAN prior to the baseline interview. Higher ALAN exposure above the threshold was associated with increased risk of poor sleep quality. After adjusting for potential confounders, the odds ratios (and 95%CI, 95% confidence intervals) were 1.15 (0.97, 1.36) and 1.45 (1.17, 1.78) at the 75th and 95th percentiles of ALAN against the threshold. The association of ALAN exposure with poor sleep quality was more pronounced in veterans with depression than those without. Higher OR of poor sleep quality at the 75th percentile of ALAN against the threshold was observed in veterans with depression than those without [2.09 (1.16, 3.76) vs. 1.09 (0.92, 1.30)]. CONCLUSIONS Long-term exposure to outdoor ALAN was associated with higher risk of poor sleep quality in Chinese veterans. Effective outdoor ALAN management may help to reduce the burden of sleep disorders in Chinese veterans.
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Affiliation(s)
- Xinyi Sun
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Jiping Tan
- Geriatric Neurology Department of the Second Medical Center & National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, 100039, China
| | - Yan Chen
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Yuewei Liu
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Guang-Hui Dong
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Bo-Yi Yang
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Nan Li
- Research Center of Clinical Epidemiology, Peking University Third Hospital, Beijing, 100191, China
| | - Luning Wang
- Geriatric Neurology Department of the Second Medical Center & National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, 100039, China
| | - Shanshan Li
- Climate, Air Quality Research Unit, School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, 3004, Australia
| | - Gongbo Chen
- Climate, Air Quality Research Unit, School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, 3004, Australia.
| | - Yuming Guo
- Climate, Air Quality Research Unit, School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, 3004, Australia.
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Lyall LM, Sangha N, Zhu X, Lyall DM, Ward J, Strawbridge RJ, Cullen B, Smith DJ. Subjective and objective sleep and circadian parameters as predictors of depression-related outcomes: A machine learning approach in UK Biobank. J Affect Disord 2023; 335:83-94. [PMID: 37156273 DOI: 10.1016/j.jad.2023.04.138] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 04/25/2023] [Accepted: 04/29/2023] [Indexed: 05/10/2023]
Abstract
BACKGROUND Sleep and circadian disruption are associated with depression onset and severity, but it is unclear which features (e.g., sleep duration, chronotype) are important and whether they can identify individuals showing poorer outcomes. METHODS Within a subset of the UK Biobank with actigraphy and mental health data (n = 64,353), penalised regression identified the most useful of 51 sleep/rest-activity predictors of depression-related outcomes; including case-control (Major Depression (MD) vs. controls; postnatal depression vs. controls) and within-case comparisons (severe vs. moderate MD; early vs. later onset, atypical vs. typical symptoms; comorbid anxiety; suicidality). Best models (of lasso, ridge, and elastic net) were selected based on Area Under the Curve (AUC). RESULTS For MD vs. controls (n(MD) = 24,229; n(control) = 40,124), lasso AUC was 0.68, 95 % confidence interval (CI) 0.67-0.69. Discrimination was reasonable for atypical vs. typical symptoms (n(atypical) = 958; n(typical) = 18,722; ridge: AUC 0.74, 95 % CI 0.71-0.77) but poor for remaining models (AUCs 0.59-0.67). Key predictors across most models included: difficulty getting up, insomnia symptoms, snoring, actigraphy-measured daytime inactivity and lower morning activity (~8 am). In a distinct subset (n = 310,718), the number of these factors shown was associated with all depression outcomes. LIMITATIONS Analyses were cross-sectional and in middle-/older aged adults: comparison with longitudinal investigations and younger cohorts is necessary. DISCUSSION Sleep and circadian measures alone provided poor to moderate discrimination of depression outcomes, but several characteristics were identified that may be clinically useful. Future work should assess these features alongside broader sociodemographic, lifestyle and genetic features.
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Affiliation(s)
- Laura M Lyall
- School of Health and Wellbeing, University of Glasgow, Glasgow, UK; Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK.
| | - Natasha Sangha
- School of Health and Wellbeing, University of Glasgow, Glasgow, UK; Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - Xingxing Zhu
- School of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Donald M Lyall
- School of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Joey Ward
- School of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Rona J Strawbridge
- School of Health and Wellbeing, University of Glasgow, Glasgow, UK; Health Data Research, UK; Cardiovascular Medicine Unit, Department of Medicine Solna, Karolinska Institute, Stockholm, Sweden
| | - Breda Cullen
- School of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Daniel J Smith
- School of Health and Wellbeing, University of Glasgow, Glasgow, UK; Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
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Waddell H, Stevenson TJ, Mole DJ. The role of the circadian rhythms in critical illness with a focus on acute pancreatitis. Heliyon 2023; 9:e15335. [PMID: 37089281 PMCID: PMC10119767 DOI: 10.1016/j.heliyon.2023.e15335] [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: 09/26/2022] [Revised: 01/20/2023] [Accepted: 04/03/2023] [Indexed: 04/25/2023] Open
Abstract
Circadian rhythms are responsible for governing various physiological processes, including hormone secretion, immune responses, metabolism, and the sleep/wake cycle. In critical illnesses such as acute pancreatitis (AP), circadian rhythms can become dysregulated due to disease. Evidence suggests that time of onset of disease, coupled with peripheral inflammation brought about by AP will impact on the circadian rhythms generated in the central pacemaker and peripheral tissues. Cells of the innate and adaptive immune system are governed by circadian rhythms and the diurnal pattern of expression can be disrupted during disease. Peak circadian immune cell release and gene expression can coincide with AP onset, that may increase pancreatic injury, tissue damage and the potential for systemic inflammation and multiple organ failure to develop. Here, we provide an overview of the role of circadian rhythms in AP and the underpinning inflammatory mechanisms to contextualise ongoing research into the chronobiology and chronotherapeutics of AP.
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Affiliation(s)
- Heather Waddell
- Medical Research Council Centre for Inflammation Research, Queen's Medical Research Institute, The University of Edinburgh, Edinburgh, EH16 4TJ, UK
| | - Tyler J. Stevenson
- Institute of Biodiversity and Animal Health and Comparative Medicine, College of Medical Veterinary and Life Sciences, University of Glasgow, Glasgow, G61 1QH, UK
| | - Damian J. Mole
- Medical Research Council Centre for Inflammation Research, Queen's Medical Research Institute, The University of Edinburgh, Edinburgh, EH16 4TJ, UK
- Clinical Surgery, School of Clinical Sciences and Community Health, The University of Edinburgh, Edinburgh, EH16 4SB, UK
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Ngo HVV, Oster H, Andreou C, Obleser J. Circadian rhythms in auditory hallucinations and psychosis. Acta Physiol (Oxf) 2023; 237:e13944. [PMID: 36744985 DOI: 10.1111/apha.13944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 01/31/2023] [Accepted: 02/01/2023] [Indexed: 02/07/2023]
Abstract
Circadian rhythms are imprinted in all organisms and influence virtually all aspects of physiology and behavior in adaptation to the 24-h day-night cycle. This recognition of a circadian timekeeping system permeating essentially all healthy functioning of body and mind quickly leads to the realization that, in turn, human ailments should be probed for the degree to which they are rooted in or marked by disruptions and dysregulations of circadian clock functions in the human body. In this review, we will focus on psychosis as a key mental illness and foremost one of its cardinal symptoms: auditory hallucinations. We will discuss recent empirical evidence and conceptual advances probing the potential role of circadian disruption in auditory hallucinations. Moreover, a dysbalance in excitation and inhibition within cortical networks, which in turn drive a disinhibition of dopaminergic signaling, will be highlighted as central physiological mechanism. Finally, we will propose two avenues for experimentally intervening on the circadian influences to potentially alleviate hallucinations in psychotic disorders.
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Affiliation(s)
- Hong-Viet V Ngo
- Department of Psychology, University of Lübeck, Lübeck, Germany
- Center of Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany
| | - Henrik Oster
- Center of Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany
- Institute of Neurobiology, University of Lübeck, Lübeck, Germany
| | - Christina Andreou
- Center of Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany
- Department of Psychiatry and Psychotherapy, University of Lübeck, Lübeck, Germany
| | - Jonas Obleser
- Department of Psychology, University of Lübeck, Lübeck, Germany
- Center of Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany
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Wang G, Liu YF, Yang Z, Yu CX, Tong Q, Tang YL, Shao YQ, Wang LQ, Xu X, Cao H, Zhang YQ, Zhong YM, Weng SJ, Yang XL. Short-term acute bright light exposure induces a prolonged anxiogenic effect in mice via a retinal ipRGC-CeA circuit. SCIENCE ADVANCES 2023; 9:eadf4651. [PMID: 36947616 PMCID: PMC10032603 DOI: 10.1126/sciadv.adf4651] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
Light modulates mood through various retina-brain pathways. We showed that mice treated with short-term acute bright light exposure displayed anxiety-related phenotypes in a prolonged manner even after the termination of the exposure. Such a postexposure anxiogenic effect depended upon melanopsin-based intrinsically photosensitive retinal ganglion cell (ipRGC) activities rather than rod/cone photoreceptor inputs. Chemogenetic manipulation of specific central nuclei demonstrated that the ipRGC-central amygdala (CeA) visual circuit played a key role in this effect. The corticosterone system was likely to be involved in this effect, as evidenced by enhanced expression of the glucocorticoid receptor (GR) protein in the CeA and the bed nucleus of the stria terminalis and by the absence of this effect in animals treated with the GR antagonist. Together, our findings reveal a non-image forming visual circuit specifically designed for "the delayed" extinction of anxiety against potential threats, thus conferring a survival advantage.
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Affiliation(s)
- Ge Wang
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, China
| | - Yun-Feng Liu
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, China
| | - Zhe Yang
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, China
| | - Chen-Xi Yu
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, China
| | - Qiuping Tong
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, China
| | - Yu-Long Tang
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, China
| | - Yu-Qi Shao
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, China
| | - Li-Qin Wang
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, China
| | - Xun Xu
- Department of Ophthalmology, Shanghai General Hospital, National Clinical Research Center for Eye Diseases, Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, Shanghai, China
| | - Hong Cao
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, China
| | - Yu-Qiu Zhang
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, China
| | - Yong-Mei Zhong
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, China
| | - Shi-Jun Weng
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, China
| | - Xiong-Li Yang
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, China
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Banasiak M, Wilkerson A, Safranek S. Evaluating Occupant Light Exposure and Usage Patterns in an Inpatient Behavioral Health Unit. HERD-HEALTH ENVIRONMENTS RESEARCH & DESIGN JOURNAL 2023; 16:89-108. [PMID: 36855952 PMCID: PMC10133784 DOI: 10.1177/19375867221150226] [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: 03/02/2023]
Abstract
OBJECTIVE To (1) evaluate the use case for tunable lighting in inpatient behavioral health, (2) describe differences in staff lighting exposures between static and tunable lighting conditions using wearable sensors, and (3) document occupant lighting control usage patterns. BACKGROUND Tunable lighting fixtures can vary the amount of light and spectral content, so have been offered as a way to address light and health considerations. Before we can understand potential health benefits of tunable lighting, it is helpful to understand how occupant exposures under tunable lighting differ from those under more traditional lighting systems. METHODS Tunable lighting benefits and challenges for inpatient behavioral health were carefully detailed during design. Light exposure measurements were recorded at an old site with static fluorescent lighting and a new site with tunable light-emitting diode (LED) lighting. Behavioral health inpatient unit staff participants voluntarily wore a light measurement device to estimate light exposure. At the new site, controls usage data were recorded each time a button was pressed on a lighting control station. RESULTS While general observations can be made about the data between sites, there is notable variation at both sites depending on the day and hour. Button press data revealed that occupants used the full capability of the tunable lighting system to support different activities and needs. CONCLUSION Understanding the relationship between occupant well-being and light requires a holistic research approach including thoughtful design accounting for real-world constraints, detailed measurement of light exposure, and understanding how occupants interact and make use of new technology.
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Affiliation(s)
| | | | - Sarah Safranek
- Pacific Northwest National Laboratory, Portland, OR, USA
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Andrade Correia LT, Coimbra DG, Gitaí DLG, Gitaí LLG, de Andrade TG. Associations between chronotype, sleep quality, maternal mental health, and child development in mother-infant dyads. Sleep Med 2023; 106:90-96. [PMID: 37075531 DOI: 10.1016/j.sleep.2023.03.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 03/06/2023] [Accepted: 03/23/2023] [Indexed: 04/03/2023]
Abstract
OBJECTIVE/BACKGROUND Studies on circadian rhythms throughout development and their physiological and behavioral impacts at early stages are still scarce. Previous studies have shown that mother-infant interactions are important for both sleep and child development. In this cross-sectional study we investigated whether infants' chronotype, sleep and development were associated with their respective mothers' chronotype, sleep, mental health and socioeconomic status. PATIENTS/METHODS the following were used to evaluate mothers: the Morningness-Eveningness Questionnaire (MEQ), Pittsburgh Sleep Quality Index (PSQI), Epworth Sleepiness Scale (ESS) and Self-Reporting Questionnaire 20 (SRQ-20). To assess the infants' characteristics, the following were used: the 19th question from the Morningness-Eveningness Questionnaire (MEQ), infant nocturnal midpoint of sleep (iMSF), Brief Infant Sleep Questionnaire (BISQ) and Ages and Stages Questionnaire-3 (ASQ3). Socioeconomic aspects were assessed using the Brazilian Economic Class Criterion of the Brazilian Association of Research Companies (ABEP). RESULTS A hundred and eight mother-infant dyads participated in the study. Sleep disorders were observed in 38 (35%) infants and atypical development (ASQ3) in 35 (32%). The infants' sleep phases were partially explained by the mother's chronotype. Infants' sleep duration was negatively correlated with sleep latency, which was higher in the group with atypical development. Mothers of infants with sleep disorders or discordant chronotypes (32%) had higher Pittsburgh scores (worse sleep quality) and higher SRQ-20 scores (screen for Common Mental Disorders). CONCLUSIONS We found evidence for the contribution of sleep quality and chronotypes to mothers' mental health and infant development. However, further studies are needed to confirm the influence of sleep and circadian phenotypes in the early stages.
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Affiliation(s)
| | - Daniel Gomes Coimbra
- Circadian Medicine Center, Faculty of Medicine, Federal University of Alagoas, Maceió, Alagoas, Brazil.
| | - Daniel Leite Góes Gitaí
- Department of Cellular and Molecular Biology, Institute of Biological Sciences and Health, Federal University of Alagoas, Brazil.
| | - Lívia Leite Góes Gitaí
- Circadian Medicine Center, Faculty of Medicine, Federal University of Alagoas, Maceió, Alagoas, Brazil.
| | - Tiago Gomes de Andrade
- Circadian Medicine Center, Faculty of Medicine, Federal University of Alagoas, Maceió, Alagoas, Brazil.
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Cooper R, Di Biase MA, Bei B, Allen NB, Schwartz O, Whittle S, Cropley V. Development of morning-eveningness in adolescence: implications for brain development and psychopathology. J Child Psychol Psychiatry 2023; 64:449-460. [PMID: 36325967 PMCID: PMC10952670 DOI: 10.1111/jcpp.13718] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/14/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND Morning-evening preference is defined as an individual's preference for a morning- or evening-oriented rhythm. Across adolescence, a preference for eveningness becomes more predominant. Although eveningness is cross-sectionally associated with internalizing and externalizing psychopathology, few studies have examined developmental changes in eveningness and its potential biological substrates. Here, we investigated the longitudinal relationships among the trajectory of eveningness preference, internalizing and externalizing psychopathology and white matter development, across adolescence. METHODS Two-hundred and nine adolescents (49% male) were assessed longitudinally at four separate time points between 12 and 19 years of age. Morning-evening preference and internalizing and externalizing symptoms were assessed at each time point. Diffusion-weighted images were acquired on a subset of participants at the final two time points to estimate changes in global mean fractional anisotropy (FA). Linear mixed models were performed to estimate the change in eveningness over time. A series of linear regression models assessed the influence of change in eveningness on psychopathology and white matter development at age 19. RESULTS Across the sample, a preference for eveningness became more predominant by 19 years of age. Greater individual-level change towards eveningness significantly predicted greater severity in externalizing, but not internalizing, symptoms at 19 years of age. In contrast, change in psychopathology from 12 to 19 years of age was not associated with morning-eveningness at age 19. A change towards eveningness predicted an attenuated increase in FA between 17 and 19 years of age. CONCLUSIONS This study suggests that developmental changes in morning-evening preference may predict both neurodevelopmental and psychological outcomes in adolescents.
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Affiliation(s)
- Rebecca Cooper
- Melbourne Neuropsychiatry CentreThe University of Melbourne and Melbourne HealthMelbourneVictoriaAustralia
| | - Maria A. Di Biase
- Melbourne Neuropsychiatry CentreThe University of Melbourne and Melbourne HealthMelbourneVictoriaAustralia
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's HospitalHarvard Medical SchoolBostonMassachusettsUSA
| | - Bei Bei
- Turner Institute for Brain and Mental Health, School of Psychological SciencesMonash UniversityMelbourneVictoriaAustralia
| | | | - Orli Schwartz
- Orygen Centre for Youth Mental HealthMelbourneVictoriaAustralia
| | - Sarah Whittle
- Melbourne Neuropsychiatry CentreThe University of Melbourne and Melbourne HealthMelbourneVictoriaAustralia
| | - Vanessa Cropley
- Melbourne Neuropsychiatry CentreThe University of Melbourne and Melbourne HealthMelbourneVictoriaAustralia
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Cirrincione L, Plescia F, Malta G, Campagna M, Lecca LI, Skerjanc A, Carena E, Baylon V, Theodoridou K, Fruscione S, Cannizzaro E. Evaluation of Correlation between Sleep and Psychiatric Disorders in a Population of Night Shift Workers: A Pilot Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:3756. [PMID: 36834452 PMCID: PMC9967097 DOI: 10.3390/ijerph20043756] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 02/13/2023] [Accepted: 02/19/2023] [Indexed: 06/07/2023]
Abstract
BACKGROUND Insomnia is the perception of inadequate, insufficient or non-restorative sleep. Of all sleep-related disorders, insomnia is the most common. It is important to remember that the sleep-wake cycle also plays a central role in the genesis of anxiety and depression. The aim of our study is to evaluate the association between sleep disturbances and anxiety and depression in a group of workers of both sexes who perform night shift work. METHODS Information on sleep disorders was collected by administering the Insomnia Severity Index (ISI) questionnaire. Statistical analysis was conducted using the Chi-square test to assess whether there were any differences between sex for those who were healthy or who were diagnosed with psychiatric disorders. RESULTS The results showed that there was a good percentage of subjects with insomnia problems, impairing normal daily activities and promoting the onset of fatigue, daytime sleepiness, cognitive performance deficits and mood disorders. CONCLUSION We highlighted how anxious and depressive anxiety disorders are more pronounced in people who suffer from altered sleep-wake rhythms. Further research in this direction could prove to be fundamental for understanding the genesis of the onset of other disorders as well.
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Affiliation(s)
- Luigi Cirrincione
- Department of Health Promotion Sciences Maternal and Child Care, Internal Medicine and Medical Specialties ‘Giuseppe D’Alessandro’, University of Palermo, Via del Vespro 133, 90127 Palermo, Italy
| | - Fulvio Plescia
- Department of Health Promotion Sciences Maternal and Child Care, Internal Medicine and Medical Specialties ‘Giuseppe D’Alessandro’, University of Palermo, Via del Vespro 133, 90127 Palermo, Italy
| | - Ginevra Malta
- Department of Health Promotion Sciences Maternal and Child Care, Internal Medicine and Medical Specialties ‘Giuseppe D’Alessandro’, University of Palermo, Via del Vespro 133, 90127 Palermo, Italy
| | - Marcello Campagna
- Department of Medical Sciences and Public Health, University of Cagliari, 09127 Cagliari, Italy
| | - Luigi Isaia Lecca
- Department of Medical Sciences and Public Health, University of Cagliari, 09127 Cagliari, Italy
| | - Alenka Skerjanc
- Clinical Institute for Occupational, Traffic and Sports Medicine, University Medical Centre Ljubljana, 1000 Ljubljana, Slovenia
| | - Elisa Carena
- Department of Sciences of Public Health and Pediatrics, University of Turin, 10126 Turin, Italy
| | - Vincenzo Baylon
- Newton Lewis Institute Scientific Research-Life Science Park, 3000 San Gwann, Malta
| | - Kelly Theodoridou
- Department of Microbiology, Andreas Syggros University Hospital Athens Greece, 10552 Athens, Greece
| | - Santo Fruscione
- Department of Health Promotion Sciences Maternal and Child Care, Internal Medicine and Medical Specialties ‘Giuseppe D’Alessandro’, University of Palermo, Via del Vespro 133, 90127 Palermo, Italy
| | - Emanuele Cannizzaro
- Department of Health Promotion Sciences Maternal and Child Care, Internal Medicine and Medical Specialties ‘Giuseppe D’Alessandro’, University of Palermo, Via del Vespro 133, 90127 Palermo, Italy
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Wentzel M, Janse van Rensburg J, Terblans JJ. Radiology blues: Comparing occupational blue-light exposure to recommended safety standards. SA J Radiol 2023; 27:2522. [PMID: 36756358 PMCID: PMC9900293 DOI: 10.4102/sajr.v27i1.2522] [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: 07/25/2022] [Accepted: 11/28/2022] [Indexed: 02/04/2023] Open
Abstract
Background The blue-light hazard is a well-documented entity addressing the detrimental health effects of high-energy visible light photons in the range of 305 nm - 450 nm. Radiologists spend long hours in front of multiple light-emitting diode (LED)-based diagnostic monitors emitting blue light, predisposing them to potentially higher blue-light dosages than other health professionals. Objectives The authors aimed to quantify the blue light that radiology registrars are exposed to in daily viewing of diagnostic monitors and compared this with international occupational safety standards. Method A limited cross-sectional observational study was conducted. Four radiology registrars at two academic hospitals in Bloemfontein from 01 October 2021 to 30 November 2021 participated. Diagnostic monitor viewing times on a standard workday were determined. Different image modalities obtained from 01 June 2019 to 30 November 2019 were assessed, and blue-light radiance was determined using a spectroscope and image analysis software. Blue-light radiance values were compared with international safety standards. Results Radiology registrars spent on average 380 min in front of a diagnostic display unit daily. Blue-light radiance from diagnostic monitors was elevated in higher-intensity images such as chest radiographs and lower for darker images like MRI brain studies. The total blue-light radiance from diagnostic display units was more than 10 000 times below the recommended threshold value for blue-light exposure. Conclusion Blue-light radiance from diagnostic displays measured well below the recommended values for occupational safety. Hence, blue-light exposure from diagnostic monitors does not significantly add to the occupational health burden of radiologists. Contribution Despite spending long hours in front of diagnostic monitors, radiologists' exposure to effective blue-light radiance from monitors was far below hazardous values. This suggests that blue-light exposure from diagnostic monitors does not increase the occupational health burden of radiologists.
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Affiliation(s)
- Mari Wentzel
- Department of Clinical Imaging Science, Faculty of Health Sciences, University of the Free State, Bloemfontein, South Africa
| | - Jacques Janse van Rensburg
- Department of Clinical Imaging Science, Faculty of Health Sciences, University of the Free State, Bloemfontein, South Africa
| | - Jacobus J. Terblans
- Department of Physics, Faculty of Natural and Agricultural Sciences, University of the Free State, Bloemfontein, South Africa
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Urbanová L, Sebalo Vňuková M, Anders M, Ptáček R, Bušková J. The Updating and Individualizing of Sleep Hygiene Rules for Non-clinical Adult Populations. Prague Med Rep 2023; 124:329-343. [PMID: 38069641 DOI: 10.14712/23362936.2023.26] [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] [Indexed: 12/18/2023] Open
Abstract
Sleep hygiene is essential for the prevention of somatic and mental disorders, including the prevention of sleep disorders. However, it does not typically address individual differences. The aim of this review is threefold: first, to outline the empirical evidence for particular components of sleep hygiene rules; second, to indicate the importance of individualized sleep hygiene application with regard to the varying degree of validity of sleep hygiene rules in the population; third, to highlight a new field of sleep hygiene, namely light hygiene. PubMed and Google Scholar were used to identify studies that were published between 2007 and 2022. A search was conducted for studies related to sleeping rules topics: sleep regularity, regular exercise, alcohol, caffeine, napping, relaxation and meditation, food intake and light exposure. In applying these sleep hygiene principles, it is essential to pay attention to individual variables such as age, genetic predisposition, health status, and substance (caffeine, alcohol) possible dependence.
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Affiliation(s)
- Lucie Urbanová
- Department of Psychiatry, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic.
| | - Martina Sebalo Vňuková
- Department of Psychiatry, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Martin Anders
- Department of Psychiatry, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Radek Ptáček
- Department of Psychiatry, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Jitka Bušková
- Department of Sleep Medicine, National Institute of Mental Health, Klecany, Czech Republic
- Third Faculty of Medicine, Charles University, Prague, Czech Republic
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Meyer C, Schoettner K, Amir S. The effects of circadian desynchronization on alcohol consumption and affective behavior during alcohol abstinence in female rats. Front Behav Neurosci 2022; 16:1044783. [PMID: 36620855 PMCID: PMC9813852 DOI: 10.3389/fnbeh.2022.1044783] [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: 09/15/2022] [Accepted: 12/02/2022] [Indexed: 12/24/2022] Open
Abstract
Disruption of circadian rhythmicity distorts physiological and psychological processes and has major consequences on health and well-being. A chronic misalignment within the internal time-keeping system modulates alcohol consumption and contributes to stress-related psychiatric disorders which are known to trigger alcohol misuse and relapse. While there is growing evidence of the deleterious impact of circadian disruption on male physiology and behavior, knowledge about the effect in females remains limited. The present study aims to fill the gap by assessing the relationship between internal desynchronization and alcohol intake behavior in female rats. Female Wistar rats kept under standard 24-h, 22-h light-dark conditions, or chronic 6-h advanced phase shifts, were given intermittent access to 20% alcohol followed by an extended alcohol deprivation period. Alcohol consumption under altered light-dark (LD) conditions was assessed and emotional behavior during alcohol abstinence was evaluated. Internally desynchronization in female rats does not affect alcohol consumption but alters scores of emotionality during alcohol abstinence. Changes in affective-like behaviors were accompanied by reduced body weight gain and estrous irregularities under aberrant LD conditions. Our data suggest that internal desynchronization caused by environmental factors is not a major factor contributing to the onset and progression of alcohol abuse, but highlights the need of maintaining circadian hygiene as a supportive remedy during alcohol rehabilitation.
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Carta MG, Kalcev G, Scano A, Primavera D, Orrù G, Gureye O, Cossu G, Nardi AE. Is Bipolar Disorder the Consequence of a Genetic Weakness or Not Having Correctly Used a Potential Adaptive Condition? Brain Sci 2022; 13:brainsci13010016. [PMID: 36671999 PMCID: PMC9856125 DOI: 10.3390/brainsci13010016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/09/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022] Open
Abstract
It is hypothesized that factors associated with bipolar disorder could, uer defined conditions, produce adaptive behaviors. The aim is to verify whether a genetic feature associated with bipolar disorder can be found in people without bipolar disorder but with hyperactivity/exploration traits. Healthy old adults (N = 40) recruited for a previous study on exercise were subdivided using a previously validated tool into those with and without hyperactivity/exploration traits and compared with a group of old patients with bipolar disorder (N = 21). The genetic variant RS1006737 of CACNA1C was analyzed using blood samples, DNA extraction, real-time PCR, FRET probes, and SANGER method sequencing. People with hyperactivity/exploration traits and without bipolar disorder were like people with bipolar disorder regarding the frequency of the genetic variant (OR = 0.79, CI95%: 0.21-2.95), but were different from people without either hyperactivity/exploration traits and bipolar disorder (OR = 4.75, CI95%: 1.19-18.91). The combined group of people with hyperactivity/exploration traits without bipolar disorder plus people with bipolar disorder had a higher frequency of the variant than people without either hyperactivity/exploration traits or bipolar disorder (OR = 4.25, CI95%: 1.24-14.4). To consider the genetic profile of bipolar disorder not an aberrant condition opens the way to a new approach in which the adaptive potential would be a central point in psychosocial treatment in addition to drug therapy. Future research can confirm the results of our study.
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Affiliation(s)
- Mauro Giovanni Carta
- Department of Medical Sciences and Public Health, University of Cagliari, Monserato Blocco I (CA), 09042 Cagliari, Italy
| | - Goce Kalcev
- International Ph.D. in Innovation Sciences and Technology, University of Cagliari, Via Università 40, 09124 Cagliari, Italy
| | - Alessandra Scano
- Department of Surgical Sciences, University of Cagliari, Asse Didattico Medicina P2—Monserrato (CA), 09042 Cagliari, Italy
- Correspondence:
| | - Diego Primavera
- Department of Medical Sciences and Public Health, University of Cagliari, Monserato Blocco I (CA), 09042 Cagliari, Italy
| | - Germano Orrù
- Department of Surgical Sciences, University of Cagliari, Asse Didattico Medicina P2—Monserrato (CA), 09042 Cagliari, Italy
| | - Oye Gureye
- WHO Collaborating Centre for Research and Training in Mental Health, Neuroscience and Substance Abuse, Department of Psychiatry, University of Ibadan, Oduduwa Road, Ibadan 200132, Nigeria
| | - Giulia Cossu
- Department of Medical Sciences and Public Health, University of Cagliari, Monserato Blocco I (CA), 09042 Cagliari, Italy
| | - Antonio Egidio Nardi
- Laboratory Panic and Respiration, Institute of Psychiatry (Ipub), Federal University of Rio De Janeiro (Ufrj), Rio De Janeiro 22725, Brazil
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Wei X, Huang Z, Jiang L, Li Y, Zhang X, Leng Y, Jiang C. Charting the landscape of the environmental exposome. IMETA 2022; 1:e50. [PMID: 38867899 PMCID: PMC10989948 DOI: 10.1002/imt2.50] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 07/13/2022] [Accepted: 07/30/2022] [Indexed: 06/14/2024]
Abstract
The exposome depicts the total exposures in the lifetime of an organism. Human exposome comprises exposures from environmental and humanistic sources. Biological, chemical, and physical environmental exposures pose potential health threats, especially to susceptible populations. Although still in its nascent stage, we are beginning to recognize the vast and dynamic nature of the exposome. In this review, we systematically summarize the biological and chemical environmental exposomes in three broad environmental matrices-air, soil, and water; each contains several distinct subcategories, along with a brief introduction to the physical exposome. Disease-related environmental exposures are highlighted, and humans are also a major source of disease-related biological exposures. We further discuss the interactions between biological, chemical, and physical exposomes. Finally, we propose a list of outstanding challenges under the exposome research framework that need to be addressed to move the field forward. Taken together, we present a detailed landscape of environmental exposome to prime researchers to join this exciting new field.
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Affiliation(s)
- Xin Wei
- Zhejiang Provincial Key Laboratory of Cancer Molecular Cell Biology, Life Sciences InstituteZhejiang UniversityHangzhouZhejiangChina
| | - Zinuo Huang
- Zhejiang Provincial Key Laboratory of Cancer Molecular Cell Biology, Life Sciences InstituteZhejiang UniversityHangzhouZhejiangChina
| | - Liuyiqi Jiang
- Zhejiang Provincial Key Laboratory of Cancer Molecular Cell Biology, Life Sciences InstituteZhejiang UniversityHangzhouZhejiangChina
| | - Yueer Li
- Zhejiang Provincial Key Laboratory of Cancer Molecular Cell Biology, Life Sciences InstituteZhejiang UniversityHangzhouZhejiangChina
| | - Xinyue Zhang
- Department of GeneticsStanford UniversityStanfordCaliforniaUSA
| | - Yuxin Leng
- Department of Intensive Care UnitPeking University Third HospitalBeijingChina
| | - Chao Jiang
- Zhejiang Provincial Key Laboratory of Cancer Molecular Cell Biology, Life Sciences InstituteZhejiang UniversityHangzhouZhejiangChina
- Zhejiang Provincial Key Laboratory of Pancreatic Disease, First Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiangChina
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Iacobelli P. Circadian dysregulation and Alzheimer’s disease: A comprehensive review. BRAIN SCIENCE ADVANCES 2022. [DOI: 10.26599/bsa.2022.9050021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
Alzheimer’s disease (AD), the foremost variant of dementia, has been associated with a menagerie of risk factors, many of which are considered to be modifiable. Among these modifiable risk factors is circadian rhythm, the chronobiological system that regulates sleep‐wake cycles, food consumption timing, hydration timing, and immune responses amongst many other necessary physiological processes. Circadian rhythm at the level of the suprachiasmatic nucleus (SCN), is tightly regulated in the human body by a host of biomolecular substances, principally the hormones melatonin, cortisol, and serotonin. In addition, photic information projected along afferent pathways to the SCN and peripheral oscillators regulates the synthesis of these hormones and mediates the manner in which they act on the SCN and its substructures. Dysregulation of this cycle, whether induced by environmental changes involving irregular exposure to light, or through endogenous pathology, will have a negative impact on immune system optimization and will heighten the deposition of Aβ and the hyperphosphorylation of the tau protein. Given these correlations, it appears that there is a physiologic association between circadian rhythm dysregulation and AD. This review will explore the physiology of circadian dysregulation in the AD brain, and will propose a basic model for its role in AD‐typical pathology, derived from the literature compiled and referenced throughout.
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Affiliation(s)
- Peter Iacobelli
- Department of Arts and Sciences, University of South Carolina, Columbia, USA
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Kim M, Son GI, Cho YH, Kim GH, Yun SE, Kim YJ, Chung J, Lee E, Park JJ. Reduced branched-chain aminotransferase activity alleviates metabolic vulnerability caused by dim light exposure at night in Drosophila. J Neurogenet 2022:1-11. [DOI: 10.1080/01677063.2022.2144292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Mari Kim
- Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Gwang-Ic Son
- Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Yun-Ho Cho
- Department of Physiology, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Gye-Hyeong Kim
- Department of Physiology, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Sung-Eun Yun
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju, Republic of Korea
| | - Young-Joon Kim
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju, Republic of Korea
| | - Jongkyeong Chung
- SRC Center for Systems Geroscience, Institute of Molecular Biology and Genetics, School of Biological Sciences, Seoul National University, Seoul, Republic of Korea
| | - Eunil Lee
- Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Joong-Jean Park
- Department of Physiology, College of Medicine, Korea University, Seoul, Republic of Korea
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