Chenxi Liao, Mizuho Akimoto, Mariya Petrova Bivolarova, Chandra Sekhar, Jelle Laverge, Xiaojun Fan, Li Lan, Pawel Wargocki
We performed a survey of the types of bedroom ventilation in Danish dwellings (January-February 2020) and the associated subjective sleep quality. Five hundred and seventeen people responded. Their median age was 33 years old and 55.4% of them were males. We used an online questionnaire and collected information on the type of bedroom ventilation, bedroom airing behaviour by the respondents, the bedroom environment, building surroundings and location, and sleep disturbance caused by stuffy air, noise, and the thermal environment...
July 24, 2021: Science of the Total Environment
José Francisco López-Gil, Anelise R Gaya, Cézane P Reuter, Cristiano Israel Caetano, Rafael Gomes Sentone, Hallyne Bergamini Silva Caetano, Javier Brazo-Sayavera
The pandemic has affected children's behaviors and this fact has an effect on their healthy habits, such as sleep and diet. The aim of the current study was to determinate the prevalence of sleep-related problems and its relationship with eating habits in children from the south of Brazil during the pandemic. Parents/legal guardians of 3-17 years old participants responded to a online survey distributed using the snowball sampling strategy in Brazil. The survey was conducted in April, 2020. Participants were asked for their sleep duration and sleep-related problems, as well as for their eating habits...
July 7, 2021: Sleep Medicine
Mengying Yang, Jiaxing Huang, Shuhui Zhang, Xin Zhao, Daofu Feng, Xizeng Feng
As a highly effective plant hormone, the overuse of 6-benzylaminopurine (6-BA) may pose potential threats to organisms and the environment. Melatonin is widely known for its regulation of sleep rhythm, and it also shows a beneficial effect in a variety of adverse situations. In order to investigate the harm of 6-BA to vertebrates and whether melatonin can reverse the toxicity induced by 6-BA, we analyzed the circadian rhythm and cardiovascular system of zebrafish, and further clarified the role of the thyroid endocrine system...
July 28, 2021: Ecotoxicology and Environmental Safety
Gülçin Benbir Şenel, Ömer Aydın, Ezgi Tanrıöver Aydın, Mahmut Reha Bayar, Derya Karadeniz
AIM: Sleep spindles have an important role in the pathophysiology and perception of sleep. We aimed to investigate the link between sleep spindles and microstructural architecture of sleep in regard to psychiatric characteristics in paradoxical insomnia. METHOD: A total of 40 participants (20 with paradoxical insomnia, 20 healthy controls) were included in the study. All participants were evaluated by somnologists and undergone a full-night polysomnography at sleep laboratory...
July 28, 2021: International Journal of Psychophysiology
Mi Lu, Fang Fang, Zhenjia Wang, Lei Xu, John E Sanderson, Xiaojun Zhan, Lianping He, Chan Wu, Yongxiang Wei
BACKGROUND: Limited evidence is available regarding the association between obstructive sleep apnea (OSA) and coronary plaque assessed using quantitative coronary computed tomographic angiography (CCTA). RESEARCH QUESTION: Are there any associations of OSA severity-related indices with the presence and burden of coronary plaque? STUDY DESIGN AND METHODS: Cross-sectional data from 692 patients who underwent sleep monitoring and CCTA were used for this study...
July 28, 2021: Chest
Leila Tarokh, Vladyslav V Vyazovskiy
No abstract text is available yet for this article.
July 30, 2021: Sleep
Ling Bai, Gong-Jun Ji, Yongxia Song, Jinmei Sun, Junjie Wei, Fang Xue, Lu Zhu, Rui Li, Yanfang Han, Liu Zhang, Jinying Yang, Bensheng Qiu, Guo-Rong Wu, Jing Zhang, Jingfang Hong, Kai Wang, Chunyan Zhu
With the growing population and rapid change in the social environment, nurses in China are suffering from high rates of stress; however, the neural mechanism underlying this occupation related stress is largely unknown. In this study, mental status was determined for 81 nurses and 61 controls using the Symptom Checklist 90 (SCL-90) scale. A subgroup (n = 57) was further scanned by resting-state functional MRI with two sessions. Based on the SCL-90 scale, "somatic complaints" and "diet/sleeping" exhibited the most prominent difference between nurses and controls...
July 31, 2021: Human Brain Mapping
Michaela S Gusman, Kevin J Grimm, Adam B Cohen, Leah D Doane
STUDY OBJECTIVES: This study examined associations between average and intraindividual trajectories of stress, sleep duration, and sleep quality in college students before, during, and after transitioning to online learning due to the COVID-19 pandemic. METHODS: One hundred and sixty-four first-year college students answered twice-weekly questionnaires assessing stress exposure and perception, sleep duration, and sleep quality from January until May, 2020 (N=4,269 unique observations)...
July 31, 2021: Sleep
Alex Catherine Staines, Niall Broomfield, Laura Pass, Faith Orchard, Jessica Bridges
Research indicates a bidirectional relationship between sleep and anxiety, with findings suggesting anxiety can precede poor sleep and vice versa. Evidence suggests sleep-related thought processes associated with anxiety are involved in the maintenance of insomnia. Previous meta-analyses provide some evidence to suggest cognitive behavioural therapy for insomnia moderately improves anxiety, yet little research has investigated the effect of other sleep interventions on anxiety symptoms. The aim of this meta-analysis was to review whether non-pharmacological sleep interventions have an impact on anxiety symptoms immediately post-intervention...
July 30, 2021: Journal of Sleep Research
Reyila Abudoureyimu, Mulalibieke Heizhati, Lin Wang, Mei Li, Delian Zhang, Zhongrong Wang, Zhikang Yang, Jing Hong, Nanfang Li
OBJECTIVES: Uncertainty remains about the association of potassium (K) intake and sleepiness. Therefore, we aimed to explore the relationship between K excretion using 24-h urine samples and excessive daytime sleepiness (EDS) in the general population. METHODS: In a cross-sectional study, we used multi-stage proportional random sampling to obtain a study sample aged ≥ 18 years from Emin, China between March and June 2019. We collected timed 24-h urine specimens and conducted EDS assessments using the Epworth Sleepiness Scale (ESS) questionnaire...
July 31, 2021: Sleep & Breathing
Jessica K Salwen-Deremer, Michael T Smith, Hannah G Haskell, Colleen Schreyer, Corey A Siegel
BACKGROUND: Poor sleep is common in inflammatory bowel disease (IBD), predicting increased risk of flares, surgery, and/or hospitalization and reducing quality of life. AIMS: To profile specific sleep disorder symptoms in IBD, informing intervention efforts. METHODS: 312 adults with Crohn's disease or ulcerative colitis were recruited from an academic medical center in New Hampshire, USA. Participants completed online surveys about sleep including well-validated measures of sleep quality, insomnia, restless leg syndrome, sleep apnea, and circadian rhythms...
July 30, 2021: Digestive Diseases and Sciences
M Stemerdink, B García-Bohórquez, R Schellens, G Garcia-Garcia, E Van Wijk, J M Millan
Usher syndrome (USH) is a rare, autosomal recessively inherited disorder resulting in a combination of sensorineural hearing loss and a progressive loss of vision resulting from retinitis pigmentosa (RP), occasionally accompanied by an altered vestibular function. More and more evidence is building up indicating that also sleep deprivation, olfactory dysfunction, deficits in tactile perception and reduced sperm motility are part of the disease etiology. USH can be clinically classified into three different types, of which Usher syndrome type 2 (USH2) is the most prevalent...
July 30, 2021: Human Genetics
Kazuomi Kario, Satoshi Hoshide, Michiaki Nagai, Yukie Okawara, Hiroshi Kanegae
There is a lack of data on how nighttime blood pressure (BP) might modify the relationship between sleep duration and cardiovascular disease (CVD) risk. Self-reported sleep duration data were available for 2253/2562 patients from the J-HOP Nocturnal BP study; of these, 2236 had complete follow-up data (mean age 63.0 years, 83% using antihypertensive drugs). CVD outcomes included stroke, coronary artery disease (CAD), and atherosclerotic CVD (ASCVD [stroke + CAD]). Associations between sleep duration and nighttime home BP (measured using a validated, automatic, oscillometric device) were determined...
July 30, 2021: Hypertension Research: Official Journal of the Japanese Society of Hypertension
Hanxiao Liu, Xinxing Wang, Lu Chen, Liang Chen, Stella E Tsirka, Shaoyu Ge, Qiaojie Xiong
Microglia are important for brain homeostasis and immunity, but their role in regulating vigilance remains unclear. We employed genetic, physiological, and metabolomic methods to examine microglial involvement in the regulation of wakefulness and sleep. Microglial depletion decreased stable nighttime wakefulness in mice by increasing transitions between wakefulness and non-rapid eye movement (NREM) sleep. Metabolomic analysis revealed that the sleep-wake behavior closely correlated with diurnal variation of the brain ceramide, which disappeared in microglia-depleted mice...
July 30, 2021: Nature Communications
Lingyu Liu, Hu Deng, Xiaping Tang, Yingxian Lu, Jiayao Zhou, Xiaofei Wang, Yanyu Zhao, Bing Huang, Yigong Shi
Electromagnetic radiation (EMR) in the environment has increased sharply in recent decades. The effect of environmental EMR on living organisms remains poorly characterized. Here, we report the impact of wireless-range EMR on the sleep architecture of mouse. Prolonged exposure to 2.4-GHz EMR modulated by 100-Hz square pulses at a nonthermal output level results in markedly increased time of wakefulness in mice. These mice display corresponding decreased time of nonrapid eye movement (NREM) and rapid eye movement (REM)...
August 3, 2021: Proceedings of the National Academy of Sciences of the United States of America
Joshua Tulk, Joshua A Rash, John Thoms, Richard Wassersug, Brian Gonzalez, Sheila N Garland
OBJECTIVES: This paper (1) sought to compare sleep, mood and physical symptom profiles of men with prostate cancer (PCa) who experienced subjective and objective cancer-related cognitive impairment (CRCI) during the first year of treatment and (2) examine if fluctuations in mood and physical symptoms are associated with change in subjective or objective CRCI. METHODS: This prospective observational cohort study examined 24 new patients with PCa receiving androgen deprivation therapy (ADT) and radiation therapy (RT) during the first 12 months of treatment...
July 30, 2021: BMJ Supportive & Palliative Care
Valentin Mocanu, Gabriel Marcil, Jerry T Dang, Daniel W Birch, Noah J Switzer, Shahzeer Karmali
BACKGROUND: The effects of preoperative weight loss on bariatric surgery outcomes are still unclear, despite the practice being adopted by bariatric centers worldwide. Ongoing studies are needed for routine adoption of this practice given the multiple issues patients face with following difficult preoperative weight loss protocols. OBJECTIVES: The aim of this study was to characterize the prevalence of preoperative weight loss and evaluate its impact on outcomes following elective bariatric surgery...
July 7, 2021: Surgery for Obesity and Related Diseases
José Ángel Rubiño-Díaz, Cristina Nicolau-Llobera, Aida Martin-Reina, Rubén Rial-Planas, Francesca Canellas
INTRODUCTION: Bright light exposure during the day has a positive effect on health and its deficit can cause multiple physiological and cognitive disorders, including depression. The aim of this study was to evaluate the effect of bright light therapy (BLT) on the quality of sleep and mood emotional state; cognitive status, global deterioration and quality of life in institutionalized elderly. MATERIAL AND METHODS: This is a study with repeated measures design. Thirty-seven older people admitted to a nursing home...
July 27, 2021: Revista Española de Geriatría y Gerontología
Bethany Sander, Amira Muftah, Laurie Sykes Tottenham, Julia A Grummisch, Jennifer L Gordon
BACKGROUND: The menopause transition is associated with an increased risk of depression. While the mechanisms behind this increased risk are not well understood, the changing perimenopausal hormonal environment has been hypothesized to play a role. The current study examined the potential influence of testosterone and the ratio of testosterone to estradiol as a potential contributor to depressed mood in the menopause transition. METHODS: Fifty non-depressed perimenopausal women ages 45-55 were recruited for this study...
July 30, 2021: Biology of Sex Differences
Mi Lu, Zhenjia Wang, Xiaojun Zhan, Yongxiang Wei
BACKGROUND: We aimed to perform a systematic review and meta-analysis of the association between obstructive sleep apnea (OSA) and cardiac as well as coronary impairment evaluated using imaging modalities. Finding of this study will provide more robust evidence regarding OSA-induced cardiovascular damage. METHODS: We systematically searched through PubMed, EMBASE, and Cochrane library databases for relevant literatures on the association between OSA and cardiovascular damage evaluated using imaging modalities, and manually searched the references of selected articles for additional relevant articles...
July 30, 2021: Systematic Reviews
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