View clinical trials related to Circadian Rhythm Disorders.
Filter by:Most ICU patients experience sleep and circadian disruption (SCD), which causes a profound negative impact on patients, such as prolonged mechanical ventilation, glucose intolerance, and the occurrence of delirium. In order to better promote the alignment of circadian rhythm in ICU patients, this project will explore the prevalence of SCD and a series of influencing factors contributing to SCD in ICU patients, to help construct targeted intervention programs in the future.
Circadian rest-activity rhythm disorders are common in patients with cancer, particularly in advanced disease. A recent international e-Delphi study has outlined recommendations for the assessment and reporting of the disorder and subsequently an observation study is underway assessing a cohort of patients with advanced cancer. Affected patients are eligible to enter a feasibility study assessing a non-pharmacological multi-modal intervention.
Shift work is a well-known risk factor for the development of overweight and obesity, which may lead to downstream effects such as increased risk of cardiometabolic diseases and cancer. However, the biological and behavioral mechanisms underlying the obesogenicity of night shift work are not well understood. Population-based mechanistic studies in real life shift workers are needed to address how night shift work impacts metabolic health. The investigators aim to characterize the behavioural, environmental, and biological mechanisms and pathways for the association of night shift work and obesity across Europe. The investigators will conduct a cross sectional study in 5 European countries (Austria, Denmark, Germany, Netherlands and Poland) and recruit 1000 rotating night shift workers and day workers (200/country) from the health sector and different industries. Night and day workers will be age-frequency (3 age groups), gender and (where possible) working tasks matched. Participants will complete online questionnaires and report their diet habits in a mobile app. Body composition, dietary behavior and sensory preferences will be tested. Biologic specimens (blood, urine, saliva, hair and feces) will be collected at the workplace on a day where participants are working on a day shift (or a day off). In a subsample (Austria and Netherlands) shift workers will provide biological samples (spot blood, urine and saliva) both on a day shift and on a night shift. Biomarkers including hormones, cellular immunity and inflammation, parameters linked to gut health and metabolism of fat and sugar, appetite, oxidative stress, metabolomics and microbiota will be measured. The investigators hypothesize that compared to day workers, night shift workers will experience disrupted levels of pre-obesity markers. Higher circadian disruption, sleep disruption and mistimed eating patterns workers will be associated with more disrupted biomarker profiles. Among rotating shift workers, night shift will be associated with acute disrupted melatonin production, metabolomic profiles and composition of oral microbiota compared to a day shift.
The aim of this randomized controlled trial (RCT) is to clarify the effect of bright light therapy on motor symptoms and sleep disorders in patients with Parkinson's disease.
Circadian rhythms plays an important role for healthy. And critical illness contributes to the disruption of circadian rhythms. Not only right but also feeding can affect the circadian clock gene expression. In a investigators' previous study, some metabolic indicators (the albumin level, total cholesterol level and total bile acid level) and the increases in lymphocyte counts in the sequential feeding group were different from those in the continuous feeding group. Investigators think sequential feeding may adjust circadian clock gene expression for its effect on metabolism and immunity. Moreover, sequential feeding did alter the abundances of some gut microbes to some degree in the investigators' previous study. Investigators think sequential feeding may adjust gut flora rhythms.
Circadian rest-Activity Rhythm disorders (CARDs) are common in patients with cancer, particularly in advanced disease. CARDs are associated with increased symptoms, poorer quality of life, poorer response to anticancer treatments and shorter survival. The goal of this observational study is to see how common CARDs are in patients with advanced cancer and to characterise their rest and activity patterns in more detail. A recent study has outlined a standard way to assess and diagnose a CARD. This study aims to assess patients with advanced cancer for a CARD using a novel screening tool against this newly formed diagnostic criteria. Potentially modifiable risk factors will be considered along with associations between CARDs and symptoms, sleep preferences, sleep quality, daytime sleepiness, quality of life measures and predictors of survival.
Research on the sustainment of implemented evidence-based psychological treatments in routine practice settings, such as community mental health centers, is limited. The goal of this study is to test sustainment predictors, mechanisms, and outcomes of the Transdiagnostic Intervention for Sleep and Circadian Dysfunction (TranS-C) in community mental health centers after implementation efforts have ended. CMHC providers have been trained to deliver a "Standard" or "Adapted" version of TranS-C. Researchers will compare these two groups to evaluate differences--and possible mechanisms--with respect to sustainment outcomes.
An observational clinical study on the changes of intestinal flora between people with circadian rhythm disorders and healthy controls was conducted to explore the relationship between circadian rhythm disorders and human intestinal microorganisms. To reveal the effects of circadian rhythm disorder on human intestinal microorganisms and metabolism on other potential diseases. In this study, 40 people with circadian disorders and 40 healthy controls were recruited. During the study, blood, urine and fecal samples of the subjects were obtained once, and the obtained biological samples were tested and analyzed by serum, urine metabolomics and fecal metagenomics. Subjects were also evaluated on the following scales : Circadian Type Inventory（CTI ）. The Epworth Sleeping Scale ( ESS ), Fatigue Scale-14 ( FS-14 ), Maslach Burnout Inventory-General Survey ( MBI-GS ), Athens Insomnia Scale ( AIS ), Insomnia Severity Index ( ISI ), Pittsburgh sleep quality index ( PSQI ), Bristol Stool Scale, Gastrointestinal Symptom Rating Scale ( GSRS ), Connor-Davidson resi.
The goal of this clinical study is to assess the effects of different photobiomodulation (PBM) conditions in men and women between 25 and 65 years old with daytime sleepiness/drowsiness and /or mild mood complaints but be otherwise healthy. The main question it aims to answer are: 1. Does PBM significantly affect health and well-being? 2. Are PBM effects wavelength dependent? 3. Are PBM effects pulse dependent? 4. Are the eyes needed to assert an PBM effect or is exposure only to the skin sufficient? 5. What are the cellular, metabolic pathways underlying the systemic effects of PBM. Participants will have to: 1. Exposed themselves 5 times per week during 2 weeks to the PBM stimuli between 9:30 and 12:30. 2. A week before the baseline measurement, participants will have to start wearing a Fitbit Versa 3, and will have to continuously wear until the end of the study. 3. In the afternoon of the baseline day as well as in the afternoons after 5 and 10 PBM sessions (week 1 and week 2, respectively), participants will have to go to the lab for blood withdraw. 4. In the evening of the baseline day as well as in the evenings after 5 and 10 PBM sessions (week 1 and week 2, respectively), participants will have to collect saliva samples as well as to complete questionnaires. It will be a double-blind placebo-controlled field study with a between subject comparison.
Shift work is associated with disturbed life rhythms resulting from chronic exposure to circadian misalignment and sleep restriction, with long-term participation in most shift schedules causing serious health problems. Epidemiological data show that shift workers are at increased risk of sleepiness, fatigue and insomnia, cardiovascular disease, breast cancer and shift-work disorder. Prevalence estimates of shift-work disorder vary between 5% and 26,5%. Given these widespread and serious health and functional consequences of shift work, there is a necessity for treatments that improve shift workers' health and work performance. Most non-pharmacological recommendations mention improved scheduling, bright-light exposure, napping, psychoeducation fostering sleep hygiene, and cognitive-behavioral interventions. The effects of shift work on the health, fatigue and sleepiness of drivers have been robustly investigated in observational studies, as well as the effects of single measures such as scheduling or resting times. But studies on the effectiveness of countermeasures against the adverse impact of shift work are sparse, especially for high-risk populations such as professional drivers and controlled intervention studies are lacking. Several other investigators expounded the need for a multi-level approach to managing occupational sleep-related fatigue and workplace interventions to promote sleep and health of shift workers. Highlighting the high public-health burden associated with lack of recuperative sleep, the authors pointed out the pressing need to develop policies and implement programs aimed at improving workers' sleep health. With SHIFTPLAN, the investigators aim to fill this gap in comprehensive approaches. To their knowledge, this is the first randomised controlled trial to systematically gauge the effect of a multimodal program that includes ergonomic shift scheduling and an educational program on well-defined health, sleep and performance outcomes in professional drivers.