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Deng H, Liu L, Tang X, Lu Y, Wang X, Zhao Y, Shi Y. Impact of specific electromagnetic radiation on wakefulness in mice. Proc Natl Acad Sci U S A 2024; 121:e2313903121. [PMID: 38557178 PMCID: PMC11009626 DOI: 10.1073/pnas.2313903121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 02/22/2024] [Indexed: 04/04/2024] Open
Abstract
Electromagnetic radiation (EMR) in the environment, particularly in the microwave range, may constitute a public health concern. Exposure to 2.4 GHz EMR modulated by 100 Hz square pulses was recently reported to markedly increase wakefulness in mice. Here, we demonstrate that a similar wakefulness increase can be induced by the modulation frequency of 1,000 Hz, but not 10 Hz. In contrast to the carrier frequency of 2.4 GHz, 935 MHz EMR of the same power density has little impact on wakefulness irrespective of modulation frequency. Notably, the replacement of the 100 Hz square-pulsed modulation by sinusoidal-pulsed modulation of 2.4 GHz EMR still allows a marked increase of wakefulness. In contrast, continuous sinusoidal amplitude modulation of 100 Hz with the same time-averaged power output fails to trigger any detectable change of wakefulness. Therefore, alteration of sleep behavior by EMR depends upon not just carrier frequency but also frequency and mode of the modulation. These results implicate biological sensing mechanisms for specific EMR in animals.
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Affiliation(s)
- Hu Deng
- Beijing Advanced Innovation Center for Structural Biology & Frontier Research Center for Biological Structure, Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing100084, China
- Peking University Huilongguan Clinical Medical School, Beijing Huilongguan Hospital, Beijing100096, China
| | - Lingyu Liu
- Beijing Advanced Innovation Center for Structural Biology & Frontier Research Center for Biological Structure, Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing100084, China
| | - Xiaping Tang
- Westlake Laboratory of Life Sciences and Biomedicine, School of Life Sciences, Westlake University, Hangzhou310024, Zhejiang Province, China
- Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou310024, Zhejiang Province, China
- Institute of Biology, Westlake Institute for Advanced Study, Hangzhou310024, Zhejiang Province, China
| | - Yingxian Lu
- Beijing Advanced Innovation Center for Structural Biology & Frontier Research Center for Biological Structure, Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing100084, China
| | - Xiaofei Wang
- Beijing Advanced Innovation Center for Structural Biology & Frontier Research Center for Biological Structure, Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing100084, China
| | - Yanyu Zhao
- Westlake Laboratory of Life Sciences and Biomedicine, School of Life Sciences, Westlake University, Hangzhou310024, Zhejiang Province, China
- Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou310024, Zhejiang Province, China
- Institute of Biology, Westlake Institute for Advanced Study, Hangzhou310024, Zhejiang Province, China
| | - Yigong Shi
- Beijing Advanced Innovation Center for Structural Biology & Frontier Research Center for Biological Structure, Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing100084, China
- Westlake Laboratory of Life Sciences and Biomedicine, School of Life Sciences, Westlake University, Hangzhou310024, Zhejiang Province, China
- Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou310024, Zhejiang Province, China
- Institute of Biology, Westlake Institute for Advanced Study, Hangzhou310024, Zhejiang Province, China
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Gaskin CJ, Venegas Hargous C, Stephens LD, Nyam G, Brown V, Lander N, Yoong S, Morrissey B, Allender S, Strugnell C. Sleep behavioral outcomes of school-based interventions for promoting sleep health in children and adolescents aged 5 to 18 years: a systematic review. Sleep Adv 2024; 5:zpae019. [PMID: 38584765 PMCID: PMC10996385 DOI: 10.1093/sleepadvances/zpae019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 01/24/2024] [Indexed: 04/09/2024]
Abstract
Study Objectives Insufficient sleep is common among children and adolescents, and can contribute to poor health. School-based interventions potentially could improve sleep behavior due to their broad reach, but their effectiveness is unclear. This systematic review focused on the effects of school-based interventions on sleep behavior among children and adolescents aged 5 to 18 years. Methods Five electronic databases were searched for randomized controlled trials of sleep health interventions initiated or conducted in school settings and in which behavioral sleep outcomes were measured. Cochrane risk of bias tools were used to assess study quality. Results From the 5303 database records and two papers from other sources, 21 studies (22 papers) met the inclusion criteria for this review. These studies involved 10 867 children and adolescents at baseline from 13 countries. Most studies (n = 15) were conducted in secondary schools. Sleep education was the most common intervention, either alone (n = 13 studies) or combined with other initiatives (stress management training, n = 2; bright light therapy, n = 1; health education, n = 1). Interventions were typically brief in terms of both the intervention period (median = 4 weeks) and exposure (median = 200 minutes). Behavioral outcomes included actigraphy-measured and self-reported sleep patterns, and sleep hygiene. All outcomes had high risk of bias or some concerns with bias. Sleep education interventions were typically ineffective. Later school start times promoted longer sleep duration over 1 week (1 study, high risk of bias). Conclusions Current evidence does not provide school-based solutions for improving sleep health, perhaps highlighting a need for complex, multi-component interventions (e.g. whole-of-school approaches) to be trialed.
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Affiliation(s)
- Cadeyrn J Gaskin
- Faculty of Health, Deakin University, Geelong, VIC 3220, Australia
| | | | - Lena D Stephens
- Faculty of Health, Deakin University, Geelong, VIC 3220, Australia
| | - Gunchmaa Nyam
- Faculty of Health, Deakin University, Geelong, VIC 3220, Australia
| | - Victoria Brown
- Faculty of Health, Deakin University, Geelong, VIC 3220, Australia
| | - Natalie Lander
- Faculty of Health, Deakin University, Geelong, VIC 3220, Australia
| | - Serene Yoong
- Faculty of Health, Deakin University, Geelong, VIC 3220, Australia
| | | | - Steven Allender
- Faculty of Health, Deakin University, Geelong, VIC 3220, Australia
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Popiolek-Kalisz J, Cakici C, Szczygiel K, Przytula A. The Impact of Education Level on Individual Lifestyle Behaviors among Dietetics Students and Professionals. Clocks Sleep 2024; 6:85-96. [PMID: 38390948 PMCID: PMC10885025 DOI: 10.3390/clockssleep6010007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 01/23/2024] [Accepted: 02/07/2024] [Indexed: 02/24/2024] Open
Abstract
Lifestyle and habits are acquired in the family environment and then shaped by the potential influence of the environment and received education. In recent years, there has been growing interest in understanding the relationship between sleep and dietary behaviors in various health professionals, including medical and dietetics professionals and students, as well as their self-perceived knowledge and attitudes. Despite the importance of this topic, there is a lack of research on the assessment of individual behaviors in dietetics students and professionals. The aim of this study was to assess the impact of education level on individual behaviors regarding nutrition, sleep, and physical activity in dietetics students and professionals. 71 dietetics students and professionals were enrolled in this study. Their overall knowledge, sleep, and nutritional behavior were assessed with a validated Questionnaire of Eating Behaviors at the beginning of their dietetics university education and then prospectively after a year. It was also compared to dieticians who already graduated. The analysis showed that the educational level did not correlate with sleep length or the physical activity level. However, the educational level was correlated with dietary knowledge and properly self-assessed by the participants. Significant differences were observed in both the prospective and comparative analyses. The educational level and knowledge were not correlated with eating behaviors. The self-assessment of nutritional behaviors also did not correlate with the objective assessment. Sleep length did not correlate with BMI, but it was inversely correlated with overall and healthy diet scores and knowledge levels. On the other hand, physical activity levels were positively correlated with healthy diet scores. Dietary education results in better nutritional knowledge; however, it does not significantly impact individual nutritional behaviors among dietetics students and professionals. Moreover, the inverse relationship between sleep length and nutritional knowledge and behaviors, as well as the positive relationship between physical activity level and dietary behaviors, shows that nutritional aspects of lifestyle are probably prioritized among dietetic students and professionals, with an acknowledgment of the role of physical activity and a neglect of sleep hygiene importance. Dietetics students should be advised to use their theoretical knowledge not only to guide their patients but also to implement it in their own lives.
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Affiliation(s)
- Joanna Popiolek-Kalisz
- Clinical Dietetics Unit, Department of Bioanalytics, Medical University of Lublin, ul. Chodzki 7, 20-093 Lublin, Poland
- Department of Cardiology, Cardinal Wyszynski Hospital in Lublin, al. Krasnicka 100, 20-718 Lublin, Poland
| | - Cansu Cakici
- Department of Nutrition and Dietetics, Institute of Health Sciences, Aydın Adnan Menderes University, 09010 Efeler, Aydın, Turkey
| | - Karolina Szczygiel
- Clinical Dietetics Unit, Department of Bioanalytics, Medical University of Lublin, ul. Chodzki 7, 20-093 Lublin, Poland
| | - Agata Przytula
- Clinical Dietetics Unit, Department of Bioanalytics, Medical University of Lublin, ul. Chodzki 7, 20-093 Lublin, Poland
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Alothman SA, Al Baiz AA, Alzaben AS, Khan R, Alamri AF, Omer AB. Factors Associated with Lifestyle Behaviors among University Students-A Cross-Sectional Study. Healthcare (Basel) 2024; 12:154. [PMID: 38255042 PMCID: PMC10815065 DOI: 10.3390/healthcare12020154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/05/2023] [Accepted: 01/06/2024] [Indexed: 01/24/2024] Open
Abstract
Lifestyle behaviors are daily habits influenced by social and environmental factors. This study examined lifestyle behaviors and their associations with sociodemographics, comorbidities, and pain in Saudi university students during the academic year 2021 and 2022. All students received the study invitation via university emails to complete an online questionnaire. The questionnaire included four sections (sociodemographics, health-related information, desired health promotion activities, and a lifestyle behavior assessment) via Health-Promoting Lifestyle Profile II (HPLP-II). The associations between study variables were assessed using Pearson's correlation and multiple linear regression. The study questionnaire was completed by 1112 students. No correlation was found between sociodemographics and lifestyle-behavior-related factors except for students in the College of Science who appeared to have good lifestyle behaviors (an increase in HPLP II total scores of 3.69). Students with mental health issues have poorer lifestyle behaviors and spend more time sitting (p < 0.00). Students without disabilities have lower scores in health responsibility, physical activity, nutrition, and stress management, while auditory disability specifically lowers health responsibility (p < 0.00). Pain was not associated with any assessed lifestyle behaviors. This study identified several significant correlations and differences between variables such as age, sedentary behavior, sleep duration, disability status, college major, and lifestyle behaviors among PNU students. These findings provide insights into the factors that influence students' health-promoting behaviors and can help guide interventions for promoting healthier lifestyles on campus. Targeted health promotion strategies at an early age could help in decreasing overall noncommunicable disease incidents later in life. The study results should be interpreted taking into consideration that the collected data were cross-sectional and self-reported. In conclusion, the findings of this study clearly demonstrate the need for specific lifestyle and health-promoting programs that are directed toward university students.
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Affiliation(s)
- Shaima A. Alothman
- Lifestyle and Health Research, Health Sciences Research Center, Princess Nourah Bint Abdulrahman University, Riyadh 11564, Saudi Arabia;
| | - Alia Abdulaziz Al Baiz
- Department of Epidemiology and Biostatistics, Health Sciences Research Center, Princess Nourah Bint Abdulrahman University, Riyadh 11564, Saudi Arabia;
| | - Abeer Salman Alzaben
- Department of Health Sciences, College of Health and Rehabilitation Sciences, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia;
| | - Ruqaiyah Khan
- Department of Basic Health Sciences, Deanship of Preparatory Year for Health Colleges, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia;
| | - Ali Faris Alamri
- King Abdullah Bin Abdulaziz University Hospital, Princess Nourah Bint Abdulrahman University, Riyadh 13415, Saudi Arabia;
| | - Asma B. Omer
- Department of Health Sciences, College of Health and Rehabilitation Sciences, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia;
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Corral-Pérez J, Casals C, Ávila-Cabeza-de-Vaca L, González-Mariscal A, Mier A, Espinar-Toledo M, García-Agua Soler N, Vázquez-Sánchez MÁ. Associations Between Physical Activity and Inactivity Levels on Physical Function and Sleep Parameters of Older Adults With Frailty Phenotype. J Appl Gerontol 2023:7334648231218095. [PMID: 38038169 DOI: 10.1177/07334648231218095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2023] Open
Abstract
This study investigated the relationship between physical activity, inactivity, physical function, and sleep in older adults with a frailty phenotype. A total of 184 pre-frail/frail older adults were included. Physical activity, inactive behavior, and sleep parameters were assessed using a wrist-worn accelerometer. Participants were categorized into four groups based on their levels of inactivity and physical activity. The results showed that individuals with lower levels of inactivity had better lower body mean velocity and sleep regularity than those with higher levels of inactivity. Physically active older adults exhibited faster gait speed and performed better in lower body strength tests than physically inactive participants. Further analysis revealed that specific combinations of inactivity and physical activity were associated with varying levels of physical function. The findings highlight the importance of physical activity and the negative impact of inactivity on physical function and sleep in older adults with a frailty phenotype.
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Affiliation(s)
- Juan Corral-Pérez
- ExPhy Research Group, Department of Physical Education, Instituto de Investigación e Innovación Biomédica de Cádiz (INiBICA), Universidad de Cádiz, Spain
| | - Cristina Casals
- ExPhy Research Group, Department of Physical Education, Instituto de Investigación e Innovación Biomédica de Cádiz (INiBICA), Universidad de Cádiz, Spain
| | - Laura Ávila-Cabeza-de-Vaca
- ExPhy Research Group, Department of Physical Education, Instituto de Investigación e Innovación Biomédica de Cádiz (INiBICA), Universidad de Cádiz, Spain
| | - Andrea González-Mariscal
- ExPhy Research Group, Department of Physical Education, Instituto de Investigación e Innovación Biomédica de Cádiz (INiBICA), Universidad de Cádiz, Spain
| | - Alba Mier
- ExPhy Research Group, Department of Physical Education, Instituto de Investigación e Innovación Biomédica de Cádiz (INiBICA), Universidad de Cádiz, Spain
| | - Milagrosa Espinar-Toledo
- Rincón de la Victoria Clinical Management Unit, Malaga-Guadalhorce Health District, Malaga, Spain
| | - Nuria García-Agua Soler
- Department of Pharmacology, Institute of Biomedical Research in Malaga (IBIMA), University of Malaga, Spain
| | - María Á Vázquez-Sánchez
- Department of Nursing, Faculty of Health Sciences, PASOS Research Group, UMA REDIAS Network of Law and Artificial Intelligence Applied to Health and Biotechnology, University of Malaga, Spain
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Vitale JA, Borghi S, Piacentini MF, Banfi G, La Torre A. To Sleep Dreaming Medals: Sleep Characteristics, Napping Behavior, and Sleep-Hygiene Strategies in Elite Track-and-Field Athletes Facing the Olympic Games of Tokyo 2021. Int J Sports Physiol Perform 2023; 18:1412-1419. [PMID: 37730209 DOI: 10.1123/ijspp.2023-0144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 07/20/2023] [Accepted: 08/11/2023] [Indexed: 09/22/2023]
Abstract
PURPOSE Few data are available on sleep characteristics of elite track-and-field athletes. Our study aimed to assess (1) differences in sleep between sexes and among different track-and-field disciplines, (2) the effect of individualized sleep-hygiene strategies on athletes' sleep parameters, and (3) daytime nap characteristics in track-and-field athletes. METHODS Sleep characteristics of 16 elite Olympic-level track-and-field athletes (male: n = 8; female: n = 8) were assessed during the preseason period, at baseline (T0), and during the in-season period, after the adoption of individualized sleep-hygiene strategies (T1). Sleep parameters were objectively monitored by actigraphy for a minimum of 10 days, for each athlete, at both T0 and T1. A total of 702 nights were analyzed (T0 = 425; T1 = 277). RESULTS Female athletes displayed better sleep efficiency (88.69 [87.69-89.68] vs 91.72 [90.99-92.45]; P = .003, effect size [ES]: 0.44), lower sleep latency (18.99 [15.97-22.00] vs 6.99 [5.65-8.32]; P < .001, ES: 0.65), higher total sleep time (07:03 [06:56-07:11] vs 07:18 [07:10-07:26]; P = .030, ES: 0.26), earlier bedtime (00:24 [00:16-00:32] vs 00:13 [00:04-00:22]; P = .027, ES: 0.18), and lower nap frequency (P < .001) than male athletes. Long-distance runners had earlier bedtime (00:10 [00:03-00:38] vs 00:36 [00:26-00:46]; P < .001, ES: 0.41) and wake-up time (07:41 [07:36-07:46] vs 08:18 [08:07-08:30]; P < .001, ES: 0.61), higher nap frequency, but lower sleep efficiency (88.79 [87.80-89.77] vs 91.67 [90.95-92.38]; P = .013, ES: 0.44), and longer sleep latency (18.89 [15.94-21.84] vs 6.69 [5.33-8.06]; P < .001, ES: 0.67) than athletes of short-term disciplines. Furthermore, sleep-hygiene strategies had a positive impact on athletes' total sleep time (429.2 [423.5-434.8] vs 451.4 [444.2-458.6]; P < .001, ES: 0.37) and sleep latency (14.33 [12.34-16.32] vs 10.67 [8.66-12.68]; P = .017, ES: 0.19). CONCLUSIONS Sleep quality and quantity were suboptimal at baseline in Olympic-level track-and-field athletes. Large differences were observed in sleep characteristics between sexes and among different track-and-field disciplines. Given the positive effect of individualized sleep-hygiene strategies on athlete's sleep, coaches should implement sleep education sessions in the daily routine of top-level athletes.
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Affiliation(s)
| | - Stefano Borghi
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | | | - Giuseppe Banfi
- IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - Antonio La Torre
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
- IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
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Pandey V, Mohan R, Kumar A, Gangadevi P, Kurien N. The Impact of the COVID-19 Outbreak on Lifestyle-Related Behavior Among the General Population. Cureus 2023; 15:e45756. [PMID: 37872892 PMCID: PMC10590493 DOI: 10.7759/cureus.45756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/22/2023] [Indexed: 10/25/2023] Open
Abstract
INTRODUCTION Coronavirus has affected more than 200 countries around the world. Due to lockdowns, people have limited outdoor activities and started adopting new and healthy lifestyle behaviors. METHOD A cross-sectional study was conducted to explore the impact of COVID-19 on lifestyle-related behavior. Data were collected from different regions of North India using Google Forms (Google, Inc., Mountain View, CA, USA) with the help of a standardized questionnaire. Both descriptive and inferential statistics were used for analysis. The p-value was set at <0.05. RESULTS A total of 468 responses were recorded (mean age: 28.51 years). A significant improvement was found in the intake of fruits and vegetables as well as pulses, eggs, or meat during the COVID-19 pandemic. Participation in household chores and screen time in watching mobile or television were significantly increased. The majority (44.4%) of participants had stable weight, and 37.8% gained weight during the COVID-19 pandemic. The anxiety they felt in a day also increased, which was predominantly due to fear of COVID-19. During the COVID-19 pandemic, a significant association was found between physical activity scores and gender, residence, nature of work, and hours of work of study subjects. CONCLUSION There is an improvement in healthy eating behavior, quality of sleep, and participation in household chores during the COVID-19 pandemic. Further, domains of lifestyle can be explored to bring a positive style of living for the achievement of healthy lifestyle behavior by the general population.
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Affiliation(s)
- Vandna Pandey
- College of Nursing, All India Institute of Medical Sciences, Jodhpur, IND
| | - Remiya Mohan
- College of Nursing, All India Institute of Medical Sciences, Jodhpur, IND
| | - Ashok Kumar
- College of Nursing, All India Institute of Medical Sciences, Jodhpur, IND
| | - P Gangadevi
- College of Nursing, All India Institute of Medical Sciences, Jodhpur, IND
| | - Nancy Kurien
- College of Nursing, All India Institute of Medical Sciences, Jodhpur, IND
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Yang E, Wang J, Woodie LN, Greene MW, Kaddoumi A. Oleocanthal Ameliorates Metabolic and Behavioral Phenotypes in a Mouse Model of Alzheimer's Disease. Molecules 2023; 28:5592. [PMID: 37513464 PMCID: PMC10385639 DOI: 10.3390/molecules28145592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/15/2023] [Accepted: 07/21/2023] [Indexed: 07/30/2023] Open
Abstract
Aging is a major risk factor for Alzheimer's disease (AD). AD mouse models are frequently used to assess pathology, behavior, and memory in AD research. While the pathological characteristics of AD are well established, our understanding of the changes in the metabolic phenotypes with age and pathology is limited. In this work, we used the Promethion cage systems® to monitor changes in physiological metabolic and behavioral parameters with age and pathology in wild-type and 5xFAD mouse models. Then, we assessed whether these parameters could be altered by treatment with oleocanthal, a phenolic compound with neuroprotective properties. Findings demonstrated metabolic parameters such as body weight, food and water intake, energy expenditure, dehydration, and respiratory exchange rate, and the behavioral parameters of sleep patterns and anxiety-like behavior are altered by age and pathology. However, the effect of pathology on these parameters was significantly greater than normal aging, which could be linked to amyloid-β deposition and blood-brain barrier (BBB) disruption. In addition, and for the first time, our findings suggest an inverse correlation between sleep hours and BBB breakdown. Treatment with oleocanthal improved the assessed parameters and reduced anxiety-like behavior symptoms and sleep disturbances. In conclusion, aging and AD are associated with metabolism and behavior changes, with the changes being greater with the latter, which were rectified by oleocanthal. In addition, our findings suggest that monitoring changes in metabolic and behavioral phenotypes could provide a valuable tool to assess disease severity and treatment efficacy in AD mouse models.
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Affiliation(s)
- Euitaek Yang
- Department of Drug Discovery and Development, Harrison College of Pharmacy, Auburn University, 720 S Donahue Dr., Auburn, AL 36849, USA
| | - Junwei Wang
- Department of Drug Discovery and Development, Harrison College of Pharmacy, Auburn University, 720 S Donahue Dr., Auburn, AL 36849, USA
| | - Lauren N Woodie
- Department of Nutrition, College of Human Sciences, Auburn University, Auburn, AL 36849, USA
| | - Michael W Greene
- Department of Nutrition, College of Human Sciences, Auburn University, Auburn, AL 36849, USA
| | - Amal Kaddoumi
- Department of Drug Discovery and Development, Harrison College of Pharmacy, Auburn University, 720 S Donahue Dr., Auburn, AL 36849, USA
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Woods S, Basco J, Clemens S. Effects of iron-deficient diet on sleep onset and spinal reflexes in a rodent model of Restless Legs Syndrome. Front Neurol 2023; 14:1160028. [PMID: 37273717 PMCID: PMC10234126 DOI: 10.3389/fneur.2023.1160028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 05/02/2023] [Indexed: 06/06/2023] Open
Abstract
Restless Legs Syndrome (RLS) is a common sensorimotor and a sleep disorder that affects 2.5-10% of the European and North American populations. RLS is also often associated with periodic leg movements during sleep (PLMS). Despite ample evidence of genetic contributions, the underlying mechanisms that elicit the sensory and motor symptoms remain unidentified. Clinically, RLS has been correlated with an altered central iron metabolism, particularly in the brain. While several animal models have been developed to determine the outcome of an altered iron homeostasis on brain function, the potential role of an altered iron homeostasis on sleep and sensorimotor circuits has not yet been investigated. Here, we utilize a mouse model to assess the effects of an iron-deficient (ID) but non-anemic state on sleep time and episodes, and sensorimotor reflexes in male and female mice. We found that animals on the ID diet displayed an increased expression of the transferrin receptor in the spinal cord, confirming the results of previous studies that focused only on the impact of ID in the brain. We also demonstrate that the ID diet reduced hematocrit levels compared to controls but not into the anemic range, and that animals on the ID diet exhibited RLS-like symptoms with regard to sleep onset and spinal cord reflex excitability. Interestingly, the effects on the spinal cord were stronger in females than in males, and the ID diet-induced behaviors were rescued by the return of the animals to the control diet. Taken together, these results demonstrate that diet-induced ID changes to CNS function are both inducible and reversible, and that they mimic the sleep and sensorimotor RLS symptoms experienced in the clinic. We therefore propose replacing the commonly used phrase "brain iron deficiency" (BID) hypothesis in the RLS research field with the term "iron deficiency in the central nervous system" (ID-CNS), to include possible effects of altered iron levels on spinal cord function.
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Perez Zarate R, Colman O, Blake SC, Watson A, Lee YTH, Grooms K, Quader ZS, Welsh JA, Gazmararian JA. Factors That Influence Sleep Behaviors of High School Students: Findings From a Semi-Rural Community in Georgia. J Sch Health 2023; 93:411-419. [PMID: 36807316 DOI: 10.1111/josh.13312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 11/12/2022] [Accepted: 02/05/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Inadequate sleep has been shown to have detrimental effects on academic performance, physical, mental, and emotional health among adolescents. Factors that influence sleep have been identified. However, most literature is currently limited to urban settings. This study sought to identify factors that influence sleep habits among high school students in a semi-rural community. METHODS Twelve focus groups were conducted in-person with separate groups of students, parents, and school staff in October 2019. Discussions focused on sleep experiences, knowledge, environment, and factors influencing sleep. Data were coded using grounded theory approach. Themes were identified through summative content analysis. RESULTS Four major themes were identified: (1) inadequate sleep adversely affects academic performance and emotional health; (2) students face a gap in knowledge regarding sleep duration; (3) academic and nonacademic activities compete with sleep needs; and (4) night-time use of technology negatively influences sleep habits. CONCLUSIONS Our findings suggest that high school students do not get adequate sleep, largely due to the demands of academic and extracurricular activities and the use of electronics at night. These results can guide the development of targeted sleep education and intervention programs.
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Affiliation(s)
- Raul Perez Zarate
- Department of Behavioral Sciences and Health Education, Rollins School of Public Health, Emory University, Atlanta, GA
| | - Olivia Colman
- Center for the Study of Human Health, College of Arts and Sciences, Emory University, Atlanta, GA
| | - Sarah C Blake
- Department of Health Policy and Management, Rollins School of Public Health, Emory University, Atlanta, GA
| | - Autumn Watson
- Department of Behavioral Sciences and Health Education, Rollins School of Public Health, Emory University, Atlanta, GA
| | - Yi-Ting H Lee
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA
| | - Kya Grooms
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA
| | - Zerleen S Quader
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA
| | - Jean A Welsh
- Department of Pediatrics, School of Medicine; Children's Healthcare of Atlanta, Emory University, Atlanta, GA
| | - Julie A Gazmararian
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, Atlanta, GA
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11
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Wu Z, Hu H, Wang C, Rao J, Wu J, Shi Y, Fu Y, Cheng X, Li P. Sleep Patterns Modify the Association between Vitamin D Status and Coronary Heart Disease: Results from NHANES 2005-2008. J Nutr 2023; 153:1398-1406. [PMID: 36863481 DOI: 10.1016/j.tjnut.2022.11.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 10/26/2022] [Accepted: 11/09/2022] [Indexed: 03/02/2023] Open
Abstract
BACKGROUND Although an increased risk of coronary heart disease (CHD) has been reported in individuals with low vitamin D status, this remains controversial. Growing evidence suggests that sleep behaviors may influence vitamin D endocrine functions. OBJECTIVES We explored the association between serum 25-hydroxyvitamin D [[25(OH)D] concentrations and CHD and whether sleep behaviors modify this relationship. METHODS A cross-sectional analysis of 7511 adults aged ≥20 y in 2005-2008 National Health and Nutrition Examination Survey (NHANES) that included serum 25(OH)D concentrations and provided information on sleep behaviors and history of CHD was performed. Logistic regression models were used to assess the association between serum 25(OH)D concentrations and CHD, whereas stratified analyses and multiplicative interaction tests were used to evaluate the modification effect of overall sleep patterns and each sleep factor on this relationship. The overall sleep patterns integrated 4 sleep behaviors (sleep duration, snoring, insomnia, and daytime sleepiness) in the form of healthy sleep score. RESULTS Serum 25(OH)D concentrations were inversely associated with risk of CHD (P < 0.01). Hypovitaminosis D [serum 25(OH)D <50nmol/L] was associated with a 71% increased risk of CHD (OR: 1.71; 95% CI: 1.28, 2.28; P < 0.01) compared with that in participants with sufficient vitamin D [serum 25(OH)D ≥75nmol/L], and the association was more evident and stable among participants with poor sleep patterns (P-interaction < 0.01). Among the individual sleep behaviors, sleep duration had the strongest interaction with 25(OH)D (P-interaction < 0.05). The association between serum 25(OH)D concentrations and risk of CHD was more pronounced in participants with sleep duration <7 h/d or >8 h/d compared with those with sleep duration 7-8 h/d. CONCLUSIONS These findings suggest that the influence of lifestyle-related behavioral risk factors, such as sleep behaviors (especially sleep duration), need to be considered when evaluating the association between serum 25(OH)D concentrations and CHD as well as the clinical benefits of vitamin D supplementation.
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Affiliation(s)
- Zuxiang Wu
- Department of Cardiology, the Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China; Jiangxi Provincial Cardiovascular Disease Clinical Medical Research Center, Nanchang, Jiangxi, China
| | - Huan Hu
- Department of Cardiology, the Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China; Jiangxi Provincial Cardiovascular Disease Clinical Medical Research Center, Nanchang, Jiangxi, China
| | - Chenxi Wang
- Department of Cardiology, the Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China; Jiangxi Provincial Cardiovascular Disease Clinical Medical Research Center, Nanchang, Jiangxi, China
| | - Jingan Rao
- Department of Cardiology, the Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China; Jiangxi Provincial Cardiovascular Disease Clinical Medical Research Center, Nanchang, Jiangxi, China
| | - Ji Wu
- Department of Cardiology, the Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China; Jiangxi Provincial Cardiovascular Disease Clinical Medical Research Center, Nanchang, Jiangxi, China
| | - Yumeng Shi
- Department of Cardiology, the Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China; Jiangxi Provincial Cardiovascular Disease Clinical Medical Research Center, Nanchang, Jiangxi, China
| | - Yang Fu
- Department of Cardiology, the Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China; Jiangxi Provincial Cardiovascular Disease Clinical Medical Research Center, Nanchang, Jiangxi, China
| | - Xiaoshu Cheng
- Department of Cardiology, the Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China; Jiangxi Provincial Cardiovascular Disease Clinical Medical Research Center, Nanchang, Jiangxi, China; Center for Prevention and Treatment of Cardiovascular Diseases, the Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Ping Li
- Department of Cardiology, the Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China; Jiangxi Provincial Cardiovascular Disease Clinical Medical Research Center, Nanchang, Jiangxi, China; Center for Prevention and Treatment of Cardiovascular Diseases, the Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.
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12
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Ning J, Zhang W, Chen SF, Li HQ, Wang RZ, Feng J, Cheng PW, Dong Q, Yu JT. Association of sleep behaviors with white matter hyperintensities and microstructural injury: a cross-sectional and longitudinal analysis of 26,354 participants. Sleep 2023; 46:7024535. [PMID: 36728016 DOI: 10.1093/sleep/zsad020] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 12/10/2022] [Indexed: 02/03/2023] Open
Abstract
STUDY OBJECTIVES This study assessed the associations between sleep behaviors with white matter macro and microstructure. METHODS A total of 26354 participants in the UK Biobank (mean [standard deviation], age, 63.7 [7.5] years, 53.4% female) were included in this study. A healthy sleep score integrated sleep behaviors including chronotype, insomnia, sleep duration, daytime sleepiness, and snoring. Linear and non-linear relationships were calculated between individual and aggregate sleep behaviors with white matter hyperintensities (WMH) and microstructural injury. RESULTS A "U-shaped" relationship was revealed between sleep duration and WMH, and the lowest WMH was at 7.7h per night. Four unhealthy sleep behaviors including late chronotype, sleep duration (>8h or <7h), excessive daytime sleepiness, and snoring significantly increased WMH burden. Lower healthy sleep score was linked with increased WMH burden (β=0.164, 95%CI=0.110-0.218), and worse microstructure in association and thalamic white matter tracts. Increased body mass index, glycated hemoglobin A1c, and systolic blood pressure were potential mediators of the relationships between unhealthy sleep behaviors and increased WMH. However, higher BMI and low-density lipoprotein were revealed as protective mediators between snoring and improved white matter integrity including lower MD and higher ICVF. CONCLUSIONS Unhealthy sleep behaviors were associated with increased WMH burden and worse white matter microstructure in specific tracts across middle and older age. These findings provide the potential to improve white matter integrity by reversing unhealthy sleep behaviors.
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Affiliation(s)
- Jing Ning
- Department of Neurology and National Center for Neurological Disorders, Huashan Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontier Center for Brain Science, Shanghai Medical College, Fudan university, Shanghai, China
| | - Wei Zhang
- Institute of Science and Technology for Brain-Inspired Intelligence, Fudan university, Shanghai, China
- Key Laboratory of Computational Neuroscience and Brain Inspired Intelligence, Fudan university, Ministry of Education, China
| | - Shu-Fen Chen
- Department of Neurology and National Center for Neurological Disorders, Huashan Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontier Center for Brain Science, Shanghai Medical College, Fudan university, Shanghai, China
| | - Hong-Qi Li
- Department of Neurology and National Center for Neurological Disorders, Huashan Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontier Center for Brain Science, Shanghai Medical College, Fudan university, Shanghai, China
| | - Rong-Ze Wang
- Department of Neurology and National Center for Neurological Disorders, Huashan Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontier Center for Brain Science, Shanghai Medical College, Fudan university, Shanghai, China
| | - Jianfeng Feng
- Institute of Science and Technology for Brain-Inspired Intelligence, Fudan university, Shanghai, China
- Key Laboratory of Computational Neuroscience and Brain Inspired Intelligence, Fudan university, Ministry of Education, China
- Fudan ISTBI-ZJNU Algorithm Centre for Brain-Inspired Intelligence, Zhejiang Normal University, Jinhua, China
| | - Prof Wei Cheng
- Institute of Science and Technology for Brain-Inspired Intelligence, Fudan university, Shanghai, China
- Key Laboratory of Computational Neuroscience and Brain Inspired Intelligence, Fudan university, Ministry of Education, China
- Fudan ISTBI-ZJNU Algorithm Centre for Brain-Inspired Intelligence, Zhejiang Normal University, Jinhua, China
| | - Qiang Dong
- Department of Neurology and National Center for Neurological Disorders, Huashan Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontier Center for Brain Science, Shanghai Medical College, Fudan university, Shanghai, China
| | - Jin-Tai Yu
- Department of Neurology and National Center for Neurological Disorders, Huashan Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontier Center for Brain Science, Shanghai Medical College, Fudan university, Shanghai, China
- Institute of Science and Technology for Brain-Inspired Intelligence, Fudan university, Shanghai, China
- Key Laboratory of Computational Neuroscience and Brain Inspired Intelligence, Fudan university, Ministry of Education, China
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13
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Tam AYC, Zha LW, So BPH, Lai DKH, Mao YJ, Lim HJ, Wong DWC, Cheung JCW. Depth-Camera-Based Under-Blanket Sleep Posture Classification Using Anatomical Landmark-Guided Deep Learning Model. Int J Environ Res Public Health 2022; 19:13491. [PMID: 36294072 PMCID: PMC9603239 DOI: 10.3390/ijerph192013491] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 10/11/2022] [Accepted: 10/15/2022] [Indexed: 06/16/2023]
Abstract
Emerging sleep health technologies will have an impact on monitoring patients with sleep disorders. This study proposes a new deep learning model architecture that improves the under-blanket sleep posture classification accuracy by leveraging the anatomical landmark feature through an attention strategy. The system used an integrated visible light and depth camera. Deep learning models (ResNet-34, EfficientNet B4, and ECA-Net50) were trained using depth images. We compared the models with and without an anatomical landmark coordinate input generated with an open-source pose estimation model using visible image data. We recruited 120 participants to perform seven major sleep postures, namely, the supine posture, prone postures with the head turned left and right, left- and right-sided log postures, and left- and right-sided fetal postures under four blanket conditions, including no blanket, thin, medium, and thick. A data augmentation technique was applied to the blanket conditions. The data were sliced at an 8:2 training-to-testing ratio. The results showed that ECA-Net50 produced the best classification results. Incorporating the anatomical landmark features increased the F1 score of ECA-Net50 from 87.4% to 92.2%. Our findings also suggested that the classification performances of deep learning models guided with features of anatomical landmarks were less affected by the interference of blanket conditions.
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Affiliation(s)
- Andy Yiu-Chau Tam
- Department of Biomedical Engineering, Faculty of Engineering, The Hong Kong Polytechnic University, Hong Kong 999077, China
| | - Li-Wen Zha
- Department of Bioengineering, Imperial College, London SW7 2AZ, UK
| | - Bryan Pak-Hei So
- Department of Biomedical Engineering, Faculty of Engineering, The Hong Kong Polytechnic University, Hong Kong 999077, China
| | - Derek Ka-Hei Lai
- Department of Biomedical Engineering, Faculty of Engineering, The Hong Kong Polytechnic University, Hong Kong 999077, China
| | - Ye-Jiao Mao
- Department of Biomedical Engineering, Faculty of Engineering, The Hong Kong Polytechnic University, Hong Kong 999077, China
| | - Hyo-Jung Lim
- Department of Biomedical Engineering, Faculty of Engineering, The Hong Kong Polytechnic University, Hong Kong 999077, China
| | - Duo Wai-Chi Wong
- Department of Biomedical Engineering, Faculty of Engineering, The Hong Kong Polytechnic University, Hong Kong 999077, China
| | - James Chung-Wai Cheung
- Department of Biomedical Engineering, Faculty of Engineering, The Hong Kong Polytechnic University, Hong Kong 999077, China
- Research Institute of Smart Ageing, The Hong Kong Polytechnic University, Hong Kong 999077, China
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14
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Kullik L, Kellmann M, Puta C, Jakowski S. Sleep behavior and training load in adolescent elite basketball players during COVID-19 pandemic development. Chronobiol Int 2022; 39:1454-1464. [PMID: 36036080 DOI: 10.1080/07420528.2022.2117051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The COVID-19 pandemic caused strong restrictions in organized sports. Specifically, adolescent athletes, whose daily routine is usually determined by school and practice schedules, experienced a sudden lifestyle change. The aim of this study was to examine sleep and training patterns of German elite adolescent basketball players (N = 115, 15.70 ± 1.22 years, female = 32.17%) during different phases of the 2021 lockdown. Sleep and training behavior were documented by a subjective monitoring over 10 days at three different lockdown phases in February, April, and June/July. A linear mixed model approach was conducted for the statistical analyses. Sleep duration and time in bed decreased between phase 1 (prohibition of organized sports) and phase 3 (normal training conditions), while sleep efficiency and quality increased. There was no change in training duration over time, but in training intensity, which peaked in the third phase. This study contains meaningful evidence to analyze the lockdown-related return to practice process. Athletes were able to maintain training duration with alternative protocols during pandemic conditions. Interestingly, athletes slept less under non-lockdown conditions, but reported a better sleep quality. It is recommended to consider athletes' individual preferences when planning training and recovery schedules.
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Affiliation(s)
- Lisa Kullik
- Department of Sport Psychology, Faculty of Sport Science, Ruhr University Bochum, Bochum, Germany
| | - Michael Kellmann
- Department of Sport Psychology, Faculty of Sport Science, Ruhr University Bochum, Bochum, Germany.,School of Human Movement and Nutrition Sciences, The University of Queensland, Brisbane, Australia
| | - Christian Puta
- Department of Sports Medicine and Health Promotion, Friedrich-Schiller-University Jena, Jena, Germany.,Center for Interdisciplinary Prevention of Diseases Related to Professional Activities, Friedrich-Schiller-University Jena, Jena, Germany
| | - Sarah Jakowski
- Department of Sport Psychology, Faculty of Sport Science, Ruhr University Bochum, Bochum, Germany
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15
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Tanioka K, Kayaba M, Tomishima S, Komada Y, Inoue Y. Changes in sleep behavior, sleep problems, and psychological distress/health-related quality of life of young Japanese individuals before and during the COVID-19 pandemic. Chronobiol Int 2022; 39:781-791. [PMID: 35139703 DOI: 10.1080/07420528.2022.2034839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Social restrictions during the coronavirus disease (COVID-19) pandemic have impacted sleep behavior and sleep problems, and their related daytime functioning in young adults. However, no studies have examined such changes in young individuals from countries with mild infection intensity and social restrictions. Therefore, we focused on sleep behaviors and sleep issues in young people in Japan. This study was conducted before and after the pandemic (October 2019 and May 2020, respectively). In total, 2,222 (1,371 students and 851 workers) individuals participated and completed anonymous Web-based questionnaires concerning demographic characteristics, sleep behaviors, sleep problems using the Japanese version of the Epworth Sleepiness Scale (JESS) and the Athens Insomnia Scale (AIS-J), psychological distress using the Japanese version of the Kessler Psychological Distress Scale, and health-related quality of life (HRQoL) evaluated with the Short Form-8 (SF-8). A significantly delayed sleep phase was observed in the second survey compared to the first (p < .001) and was more pronounced in students than in workers (p < .001). The total sleep time, social jetlag degree, and JESS, AIS-J, and SF-8 scores were significantly improved after the pandemic (p < .001, p < .001, p < .001, p < .001, p < .05, and p < .001, respectively). Careful monitoring of whether these modest changes can lead to adjustment concerns is needed.
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Affiliation(s)
- Kosuke Tanioka
- Department of Somnology, Tokyo Medical University, Tokyo, Japan.,Japan Somnology Center, Neuropsychiatric Research Institute, Tokyo, Japan
| | - Momoko Kayaba
- Department of Somnology, Tokyo Medical University, Tokyo, Japan
| | | | - Yoko Komada
- Department of Somnology, Tokyo Medical University, Tokyo, Japan.,Liberal Arts, Meiji Pharmaceutical University, Tokyo, Japan
| | - Yuichi Inoue
- Department of Somnology, Tokyo Medical University, Tokyo, Japan.,Japan Somnology Center, Neuropsychiatric Research Institute, Tokyo, Japan
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16
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Abstract
OBJECTIVE To investigate the associations between sleep behaviors and female infertility. METHODS We conducted a cross-sectional study composed of 2175 U.S. women 18-44 years of age from the National Health and Nutrition Examination Survey (NHANES) (2015-2018). Bedtime/waketime and sleep duration were extracted from the sleep disorder questionnaire. Self-reported infertility was defined as a binary variable based on the participants' response to the question, "Have you ever attempted to become pregnant over a period of at least a year without becoming pregnant?". Multivariate logistic regression analyses were done to explore the relationship between sleep behaviors and female infertility. RESULTS Bedtime (OR=1.24; 95% CI, 1.10-1.40, P = 0.001) and waketime (OR=1.14; 95% CI, 1.01-1.28, P = 0.037) were associated with infertility. Waketime of 08:00 was the inflection point, above which the probability of infertility increased rapidly (OR=1.41; 95% CI, 1.11-1.79, P = 0.004). Sleep-wake behavior was significantly associated with infertility (OR=1.34; 95% CI, 1.16-1.53, P < 0.001) and participants with early-bed/early-rise behavior had the lowest risk. CONCLUSIONS Among U.S. women 18-44 years of age, bedtime and waketime were significantly linearly and non-linearly correlated with infertility, respectively. Early-bed/early-rise behavior was associated with the lowest infertility rate. Further study is needed because the timing of sleep behaviors are modifiable factors and could be a novel strategy to cope with infertility.
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Affiliation(s)
- Zhu Liang
- Department of Obstetrics and Gynecology, Center for Reproductive Medicine, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Key Laboratory for Reproductive Medicine of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jianqiao Liu
- Department of Obstetrics and Gynecology, Center for Reproductive Medicine, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Key Laboratory for Reproductive Medicine of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- *Correspondence: Jianqiao Liu,
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17
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Tam AY, So BP, Chan TT, Cheung AK, Wong DW, Cheung JC. A Blanket Accommodative Sleep Posture Classification System Using an Infrared Depth Camera: A Deep Learning Approach with Synthetic Augmentation of Blanket Conditions. Sensors (Basel) 2021; 21:5553. [PMID: 34450994 DOI: 10.3390/s21165553] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 08/14/2021] [Accepted: 08/17/2021] [Indexed: 02/06/2023]
Abstract
Surveillance of sleeping posture is essential for bed-ridden patients or individuals at-risk of falling out of bed. Existing sleep posture monitoring and classification systems may not be able to accommodate the covering of a blanket, which represents a barrier to conducting pragmatic studies. The objective of this study was to develop an unobtrusive sleep posture classification that could accommodate the use of a blanket. The system uses an infrared depth camera for data acquisition and a convolutional neural network to classify sleeping postures. We recruited 66 participants (40 men and 26 women) to perform seven major sleeping postures (supine, prone (head left and right), log (left and right) and fetal (left and right)) under four blanket conditions (thick, medium, thin, and no blanket). Data augmentation was conducted by affine transformation and data fusion, generating additional blanket conditions with the original dataset. Coarse-grained (four-posture) and fine-grained (seven-posture) classifiers were trained using two fully connected network layers. For the coarse classification, the log and fetal postures were merged into a side-lying class and the prone class (head left and right) was pooled. The results show a drop of overall F1-score by 8.2% when switching to the fine-grained classifier. In addition, compared to no blanket, a thick blanket reduced the overall F1-scores by 3.5% and 8.9% for the coarse- and fine-grained classifiers, respectively; meanwhile, the lowest performance was seen in classifying the log (right) posture under a thick blanket, with an F1-score of 72.0%. In conclusion, we developed a system that can classify seven types of common sleeping postures under blankets and achieved an F1-score of 88.9%.
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18
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Mostarda C, Barboza CDA, Cutrim AL, Silva-Filho AC, Dias CJ, Brito-Monzani JDO, Rodrigues B. Obesity as an additional factor for autonomic imbalance and poor sleep behavior in chronic obstructive pulmonary disease: a case-control study. Clinics (Sao Paulo) 2021; 76:e1826. [PMID: 33503172 PMCID: PMC7798128 DOI: 10.6061/clinics/2021/e1826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 09/02/2020] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVES We compared the autonomic modulation and sleep behavior of eutrophic and overweight patients with chronic obstructive pulmonary disease (COPD). METHODS COPD participants were divided into the overweight and eutrophic groups. Pulmonary function, blood pressure, body composition, autonomic modulation, and the Pittsburgh Sleep Quality Index score were assessed. Participants performed the six-minute walk test for functional assessment. RESULTS Spirometric variables obtained in eutrophic and overweight individuals with COPD showed no statistically different results. We observed that the SDNN index indicated lower overall variability (p=0.003), and root mean square of successive differences between normal heart beats (RMSSD) (p=0.04) indicated lower parasympathetic modulation in the overweight group than observed in the eutrophic group. The indexes of the frequency domain presented lower values of total variability (p<0.01), low frequency bands (p<0.01), and high frequency (p=0.02), suggesting a higher sympathetic modulation and reduced parasympathetic modulation of the overweight group compared to eutrophic group. The overweight group also showed reduced sleep quality than the eutrophic group. CONCLUSION Overweight COPD patients showed lower autonomic modulation and impaired sleep quality, latency, and efficiency as compared eutrophic subjects. These results reinforce the importance of weight control and the acquisition of healthy habits in this population.
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Affiliation(s)
- Cristiano Mostarda
- Laboratorio de Adaptacoes Cardiovasculares ao Exercicio (LACORE), Universidade Federal do Maranhao, Sao Luis, MA, BR
- Programa de Pos-Graduacao em Educacao Fisica, Universidade Federal do Maranhao, Sao Luis, MA, BR
- Centro de Reabilitacao Cardiopulmonar, Hospital Universitario “Presidente Dutra”, Universidade Federal do Maranhao, Sao Luis, MA, BR
| | | | - Ana Lídia Cutrim
- Laboratorio de Adaptacoes Cardiovasculares ao Exercicio (LACORE), Universidade Federal do Maranhao, Sao Luis, MA, BR
- Programa de Pos-Graduacao em Educacao Fisica, Universidade Federal do Maranhao, Sao Luis, MA, BR
| | - Antonio Carlos Silva-Filho
- Laboratorio de Adaptacoes Cardiovasculares ao Exercicio (LACORE), Universidade Federal do Maranhao, Sao Luis, MA, BR
- Programa de Pos-Graduacao em Educacao Fisica, Universidade Federal do Maranhao, Sao Luis, MA, BR
| | - Carlos José Dias
- Laboratorio de Adaptacoes Cardiovasculares ao Exercicio (LACORE), Universidade Federal do Maranhao, Sao Luis, MA, BR
- Centro de Reabilitacao Cardiopulmonar, Hospital Universitario “Presidente Dutra”, Universidade Federal do Maranhao, Sao Luis, MA, BR
| | - Janaina De Oliveira Brito-Monzani
- Laboratorio de Adaptacoes Cardiovasculares ao Exercicio (LACORE), Universidade Federal do Maranhao, Sao Luis, MA, BR
- Programa de Pos-Graduacao em Educacao Fisica, Universidade Federal do Maranhao, Sao Luis, MA, BR
| | - Bruno Rodrigues
- Faculdade de Educacao Fisica, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, BR
- *Corresponding author. E-mail:
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Abstract
Purpose: Major changes in the timing, duration, and function of sleep occur during childhood. These changes include the transition from habitual napping to infrequent napping. This transition is likely to reflect, at least in part, neurocognitive development. This study sought to identify factors that discriminate between four groups of children with different teacher-reported responses to naptime in childcare: those who nap (nappers), sometimes nap (transitioners), do not nap (resters), and neither nap, nor lie still (problem nappers). Methods: Standardized observations of sleep and sleep behaviors, daytime behaviors across a number of domains, and direct neurocognitive assessment of 158 preschool aged children (aged 49-72 months; 54% male) attending childcare centers in Queensland (QLD), Australia, were adopted as part of a large longitudinal study of early childhood, the Effective Early Education Experiences (E4Kids) study. Discriminant function analysis was used to examine how age, parent education, nighttime sleep duration, cognitive functioning, behavior problems, and temperament differentiated the four groups. Results: Three discriminant functions were identified and defined as maturation (strong loadings of nighttime sleep duration, cognitive function, and age), socioeconomic status (parental education), and behavioral problems (externalizing behavior, temperament, and internalizing behavior). These functions accounted for 62.9%, 32.6%, and 4.5% of the between-groups variance, respectively. Children defined as nappers (n=44) had significantly shorter duration of nighttime sleep, were younger, and had lower cognitive functioning scores than did other groups. Problem nappers, (n=25) were more likely to have parents with lower levels of education than did transitioners (n=41). Standard behavior and temperament measures did not significantly differentiate the groups. Conclusion: The findings support an interaction between cognitive development, sleep behaviors, and the individual needs and circumstances of children. Further research in this area could make a strong contribution to theory and practice in early childhood education, and a strong contribution to understanding of children's development.
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Affiliation(s)
- Simon S Smith
- Institute for Social Science Research (ISSR), The University of Queensland, Brisbane, QLD, Australia
| | - Shannon L Edmed
- Institute for Social Science Research (ISSR), The University of Queensland, Brisbane, QLD, Australia
| | - Sally L Staton
- Institute for Social Science Research (ISSR), The University of Queensland, Brisbane, QLD, Australia
| | - Cassandra L Pattinson
- Brain Tissue and Injury Branch, National Institute of Nursing Research, National Institutes of Health, Bethesda, MD, USA
| | - Karen J Thorpe
- Institute for Social Science Research (ISSR), The University of Queensland, Brisbane, QLD, Australia
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Abul Khair SB, Dhanushkodi NR, Ardah MT, Chen W, Yang Y, Haque ME. Silencing of Glucocerebrosidase Gene in Drosophila Enhances the Aggregation of Parkinson's Disease Associated α-Synuclein Mutant A53T and Affects Locomotor Activity. Front Neurosci 2018; 12:81. [PMID: 29503608 PMCID: PMC5820349 DOI: 10.3389/fnins.2018.00081] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 02/01/2018] [Indexed: 01/20/2023] Open
Abstract
Background: Mutations in glucocerebrosidase (GBA), a lysosomal enzyme are the most common genetic risk factor for developing Parkinson's disease (PD). We studied how reduced GCase activity affects α-synuclein (α-syn) and its mutants (A30P and A53T) aggregation, neurodegeneration, sleep and locomotor behavior in a fly model of PD. Methods: We developed drosophila with GBA gene knockdown (RNAi) (with reduced GCase activity) that simultaneously expresses either wildtype (WT) or mutants such as A30P or A53T α-syn. Western blot and confocal microscopy were performed to study the α-syn aggregation and neurodegeneration in these flies. We also studied the sleep and locomotor activity of those flies using Drosophila activity monitor (DAM) system. Results: Western blot analysis showed that GBA RNAi A53T α-syn flies (30 days old) had an increased level of Triton insoluble synuclein (that corresponds to α-syn aggregates) compared to corresponding A53T flies without GBA RNAi (control), while mRNA expression of α-syn remained unchanged. Confocal imaging of whole brain staining of 30 days old drosophila showed a statistically significant decrease in neuron numbers in PPL1 cluster in flies expressing α-syn WT, A30P and A53T in the presence GBA RNAi compared to corresponding control. Staining with conformation specific antibody for α-syn aggregates showed an increased number of neurons staining for α-syn aggregates in A53T fly brain with GBA RNAi compared to control A53T flies, thus confirming our protein analysis finding that under decreased GBA enzyme activity, mutant A53T aggregates more than the control A53T without GBA silencing. Sleep analysis revealed decreased total activity in GBA silenced flies expressing mutant A53T compared to both A53T control flies and GBA RNAi flies without synuclein expression. Conclusion: In A53T flies with reduced GCase activity, there is increased α-syn aggregation and dopamine (DA) neuronal loss. This study demonstrates that reduced GCase activity both in the context of heterozygous GBA1 mutation associated with PD and in old age, contribute to increased aggregation of mutant α-syn A53T and exacerbates the phenotype in a fly model of PD.
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Affiliation(s)
- Salema B Abul Khair
- Department of Biochemistry, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Nisha R Dhanushkodi
- Department of Biochemistry, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Mustafa T Ardah
- Department of Biochemistry, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Wenfeng Chen
- Institute of Life Sciences, Fuzhou University, Fuzhou, China
| | - Yufeng Yang
- Institute of Life Sciences, Fuzhou University, Fuzhou, China
| | - M Emdadul Haque
- Department of Biochemistry, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
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21
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Abstract
The aim of this study is to investigate the effects of romaine lettuce leaves extract (RE), skullcap root extract (SE) and their mixture on sleep behaviors in vertebrate models. HPLC analysis showed that RE contains lactucopicrin (0.02±0.01 mg/g extract), chlorogenic acid (4.05±0.03 mg/g extract), caffeic acid (2.38±0.03 mg/g extract), and chicoric acid (7.02±0.32 mg/g extract) as main phenolic compounds, while SE includes baicalin (99.4±0.5 mg/g extract), baicalein (8.28±0.21 mg/g extract), and wogonin (3.09±0.32 mg/g extract). The mixture of RE (100 mg/g extract) and SE (40 mg/g extract) increased total sleep time by 50.9% compared with the control in pentobarbital-induced sleep model. In electroencephalography (EEG) analysis, RE/SE mixture significantly increased Non-Rapid Eye Movement (NREM), in which delta wave was enhanced by around 40% compared with normal control, leading to the increase of sleep time. In caffeine-induced wake model, RE/SE mixture greatly decreased (53%) caffeine-induced wake time, showing a similar level to normal control. In addition, caffeine-induced decreased of NREM and delta wave effectively increased with RE/SE mixture; NREM and delta wave increased by 85% and 108%, respectively. Furthermore, RE/SE mixture was shown to bind to a gamma-aminobutyric acid type A (GABAA)-benzodiazepine (BZD) receptor stronger than RE or SE single extract. Taken together, RE/SE mixture effectively improved sleep behavior with the increase of NREM via GABAA-BZD receptor binding. RE/SE mixture can be used as an herbal agent for sleep disorders.
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Affiliation(s)
- Ki-Bae Hong
- Department of Biological Sciences and Environmental Sciences Program, Southern Illinois University-Edwardsville
| | - Sung Hee Han
- BK21Plus, College of Health Science, Korea University
| | - Yooheon Park
- Dongguk University Research Institute of Biotechnology
| | - Hyung Joo Suh
- Department of Public Health Sciences, Korea University
| | - Hyeon-Son Choi
- Department of Food Science and Technology, Seoul Women's University
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22
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Whittaker DS, Wang H, Loh DH, Cachope R, Colwell CS. Possible use of a H3R antagonist for the management of nonmotor symptoms in the Q175 mouse model of Huntington's disease. Pharmacol Res Perspect 2017; 5:e00344. [PMID: 28971617 PMCID: PMC5625154 DOI: 10.1002/prp2.344] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2017] [Revised: 07/11/2017] [Accepted: 07/14/2017] [Indexed: 12/12/2022] Open
Abstract
Huntington's disease (HD) is an autosomal dominant, neurodegenerative disorder characterized by motor as well as nonmotor symptoms for which there is currently no cure. The Q175 mouse model of HD recapitulates many of the symptoms identified in HD patients including disruptions of the sleep/wake cycle. In this study, we sought to determine if the daily administration of the histamine-3 receptor (H3R) antagonist/inverse agonist 6-[(3-cyclobutyl-2,3,4,5-tetrahydro-1H-3-benzazepin-7-yl)oxy]-N-methyl-3-pyridinecarboxamide hydrochloride (GSK189254) would improve nonmotor symptoms in the Q175 line. This class of drugs acts on autoreceptors found at histaminergic synapses and results in increased levels of histamine (HA). HA is a neuromodulator whose levels vary with a daily rhythm with peak release during the active cycle and relatively lower levels during sleep. H3Rs are widely expressed in brain regions involved in cognitive processes and activation of these receptors promotes wakefulness. We administered GSK189254 nightly to homozygote and heterozygote Q175 mice for 4 weeks and confirmed that the plasma levels of the drug were elevated to a therapeutic range. We demonstrate that daily treatment with GSK189254 improved several behavioral measures in the Q175 mice including strengthening activity rhythms, cognitive performance and mood as measured by the tail suspension test. The treatment also reduced inappropriate activity during the normal sleep time. The drug treatment did not alter motor performance and coordination as measured by the challenging beam test. Our findings suggest that drugs targeting the H3R system may show benefits as cognitive enhancers in the management of HD.
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Affiliation(s)
- Daniel S. Whittaker
- Department of Psychiatry & Biobehavioral SciencesUniversity of CaliforniaLos AngelesCalifornia90095‐1751
| | - Huei‐Bin Wang
- Department of Psychiatry & Biobehavioral SciencesUniversity of CaliforniaLos AngelesCalifornia90095‐1751
| | - Dawn H. Loh
- Department of Psychiatry & Biobehavioral SciencesUniversity of CaliforniaLos AngelesCalifornia90095‐1751
| | - Roger Cachope
- CHDI Foundation6080 Center DriveSuite 100Los AngelesCalifornia90045
| | - Christopher S. Colwell
- Department of Psychiatry & Biobehavioral SciencesUniversity of CaliforniaLos AngelesCalifornia90095‐1751
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23
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Abstract
BACKGROUND The sleep and cognitive dysfunction are common in major depressive disorders (MDDs). Recently, the 2-pore domain potassium channel twik-related K(+) channel 1 (TREK-1) has been identified to be closely related to the etiology of MDD. However, whether TREK-1 is involved in the regulation of sleep and cognition is still unknown. METHODS The present study tried to dissect the role of outwardly rectifying K+ channel-1 (ORK1) (TREK-1 homolog in Drosophila) in sleep and cognition in Drosophila. The mutant and over-expressed lines of ork1 were generated using Drosophila genetics. Sleep analysis and short-term memory experiments were used to test sleep time and short-term memory of the mutant and over-expressed ORK1 lines, respectively. RESULTS Our results showed that the learning index of ork1 mutant lines was increased compared with the wild type. However, ork1 mutant could obviously decrease sleep time in Drosophila. Contrary to the ork1 mutant lines, we also found that ORK1 over-expression could increase sleep time and decreased learning index in Drosophila. CONCLUSION Results from this study suggest that ORK1 might play an important role in the regulation of sleep time and short-term memory in Drosophila.
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Abstract
Sleep behavior remains one of the most enigmatic areas of life. The unanswered questions range from "why do we sleep?" to "how we can improve sleep in today's society?" Identification of mutations responsible for altered circadian regulation of human sleep lead to unique opportunities for probing these territories. In this review, we summarize causative circadian mutations found from familial genetic studies to date. We also describe how these mutations mechanistically affect circadian function and lead to altered sleep behaviors, including shifted or shortening of sleep patterns. In addition, we discuss how the investigation of mutations can not only expand our understanding of the molecular mechanisms regulating the circadian clock and sleep duration, but also bridge the pathways between clock/sleep and other human physiological conditions and ailments such as metabolic regulation and migraine headaches.
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Affiliation(s)
- William C. Hallows
- Department of Neurology, University of California San Francisco, San Francisco, CA, USA
| | - Louis J. Ptáček
- Department of Neurology, University of California San Francisco, San Francisco, CA, USA
- Howard Hughes Medical Institute, University of California San Francisco, San Francisco, CA, USA
| | - Ying-Hui Fu
- Department of Neurology, University of California San Francisco, San Francisco, CA, USA
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25
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Abstract
PURPOSE OF REVIEW Sleep-wake problems such as night wakings, excessive crying, or difficulties in falling asleep are frequent behavioral issues during childhood. Maturational changes in sleep and circadian regulation likely contribute to the development and maintenance of such problems. This review highlights the recent research examining bioregulatory sleep mechanisms during development and provides a model for predicting sleep-wake behavior in young humans. RECENT FINDINGS Findings demonstrate that circadian and sleep homeostatic processes exhibit maturational changes during the first two decades of life. The developing interaction of both processes may be a key determinant of sleep-wake and crying behavior in infancy. Evidence shows that the dynamics of sleep homeostatic processes slow down in the course of childhood (i.e., sleep pressure accumulates more slowly with increasing age) enabling children to be awake for consolidated periods during the day. Another current topic is the adolescent sleep phase delay, which appears to be driven primarily by maturational changes in sleep homeostatic and circadian processes. SUMMARY The two-process model of sleep regulation is a valuable framework for understanding and predicting sleep-wake behavior in young humans. Such knowledge is important for improving anticipatory guidance, parental education, and patient care, as well as for developing appropriate social policies.
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Affiliation(s)
- Oskar G. Jenni
- Child Development Center, Department of Pediatrics, University Children’s Hospital Zürich, Zürich, Switzerland
| | - Monique K. LeBourgeois
- Center for the Study of Human Development, Department of Psychiatry and Human Behavior, Brown University, Providence, Rhode Island, USA
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