Clinical trials: Biological Rhythm
Healthy, Habitual; Drinking
The Influence of Fluid Intake on Daily Biological Rhythm and Mental Performance in Healthy Young Adults
Chronic low water intake may raise the risk of morbidity and mortality by influencing key water regulating hormones (e.g., AVP), which are known to modulate glucoregulation and renal function.
- Conditions
- Healthy, Habitual; Drinking, Stress, Physiological, Stress, Psychological
- Trial name
- NCT05491122
- Testing
- Increasing or decreasing daily total fluid intake
- Where
- United Kingdom
- Volunteers
- 71 people, healthy volunteers welcome
- Sponsor
- Liverpool John Moores University
Circadian Rhythm Disorders, Sepsis
Functionality of Endogenous Biological Clock in Sepsis
The aim of the current study is to demonstrate dysregulation of immune system΄s circadian rhythms as a consequence of sepsis, as well as marked malfunction of the central circadian clock in comparison with patients without sepsis…
- Trial name
- NCT04063332
- Where
- 2 sites in Greece
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- University of Athens
Bipolar Disorder, Schizophrenia
Sleep, Obesity and Mental Disease - Biological Markers for the Evaluation of Circadian Rhythmicity
Introduction 16.8% of the Danish adult population are obese (Body Mass Index> 30 kg / m2). Obesity increases the risk of lifestyle diseases such as type-2 diabetes and non-alcoholic fatty liver.
- Conditions
- Bipolar Disorder, Schizophrenia, Obesity, Circadian Rhythm Disorders
- Trial name
- SOMBER (NCT05413486)
- Testing
- Observational
- Where
- Denmark
- Volunteers
- 86 people, healthy volunteers welcome
- Sponsor
- Esbjerg Hospital - University Hospital of Southern Denmark
Circadian Misalignment, Sex Differences
Does Circadian Misalignment Have Sex-Specific Effects on Metabolism?
This study will test whether biological sex influences how the body responds to circadian misalignment-a mismatch between the internal body clock and the timing of sleep and eating (as can occur with shift work or jet lag).
- Trial name
- NCT07441265
- Testing
- Day shift, Night shift
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital
Shift-Work Sleep Disorder
Biological Rhythms Impact of 12 Hours Shift Work
Nonstandard time-schedules work are widespread in the world of work. Shift and night work have been shown to be responsible for a desynchronization of biological rhythms, associated with melatonin secretion impairment and sleep…
- Trial name
- MELACTI-12 (NCT03153917)
- Testing
- melatonin and cortisol sampling
- Where
- France
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Hospices Civils de Lyon
Sleep Disorders, Circadian Rhythm
Effects of Vitamin B12 on the Body's Internal Clock
Circadian rhythms are 24-hour cycles that influence natural functions in the body such as heart rate, blood pressure, and body temperature. Circadian rhythms provide the body with an internal clock and affect sleep patterns.
- Trial name
- NCT00120484
- Testing
- Vitamin B12
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital
Menstrual Irregularity
Increased Calorie Intake to Reverse Energy Deficiency in Exercising Women: Impact on Bone and Menstrual Cyclicity
The purpose of this study is to examine the effects of increased food intake on the menstrual cycle and bone health in physically active women who have irregular or absent menstrual cycles.
- Trial name
- NCT00392873
- Testing
- EAMD+Calories
- Where
- United States
- Volunteers
- 233 people, healthy volunteers welcome
- Sponsor
- Penn State University
Unspecified Disorder of Vestibular Function, Bilateral
Biological Rhythms and Vestibular System
The purpose of this study is to study the relationship between the vestibular system and chronobiology
- Trial name
- REHAB_Rn'V (NCT01839409)
- Testing
- vestibular stimulation
- Where
- France
- Volunteers
- 96 people, healthy volunteers welcome
- Sponsor
- University Hospital, Caen
Polycystic Ovary Syndrome, Diminished Ovarian Reserve
Clinical Trial of Anovulatory Infertility
This project aims to study the expression of clock genes and related proteins in follicular fluid and granulosa cells, depicting the periodic, amplitude, and phase changes of biological clock genes and related proteins in women…
- Conditions
- Polycystic Ovary Syndrome, Diminished Ovarian Reserve, Ovulation Disorder
- Trial name
- NCT06601452
- Testing
- a compound prescription of Chinese medicine
- Where
- China
- Volunteers
- 650 people, healthy volunteers welcome
- Sponsor
- Affiliated Hospital of Nanjing University of Chinese Medicine
Healthy, Obese
Circadian Rhythmicity in Cold-induced Thermogenesis
This study aims to investigate whether maximum cold-induced non-shivering thermogenesis (e.g. thermogenesis as a consequence of BAT activity) differs between morning and evening.
- Conditions
- Healthy, Obese, Glucose Intolerance
- Trial name
- COLDR (NCT04406922)
- Testing
- Personalized cooling protocol
- Where
- Netherlands
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Leiden University Medical Center
Circadian Rhythms, Feeding Patterns
Effect of Nutrient Delivery Pattern on Biological Rhythms in Human Skeletal Muscle
Recent work has established biological rhythms in human skeletal muscle. It remains unknown how the timing and pattern of meals influences these rhythms.
- Trial name
- NCT03906409
- Testing
- Constant, Bolus
- Where
- United Kingdom
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- University of Bath