Circadian Rhythms Current Events | Circadian Rhythms News | 6
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Study: Length of children's sleep duration varies; can influence their weight, behavior
The duration of a child's sleep can vary, depending on the time of day, week and year. Further, children who don't get enough nightly sleep are more likely to be overweight and have behavioral problems, according to a study published in the January 1 issue of the journal SLEEP. view more (2008-01-02)
Protein shown to rally biological clock
A biologist at Washington University in St. Louis and his collaborators have identified the factor in mammalian brain cells that keeps cells in synchrony so that functions like the wake-sleep cycle, hormone secretion and loco motor behaviors are coordinated daily over a 24-hour period. view more (2006-11-30)
Insomnia in women with breast cancer linked to heart rate dysregulation
A study in the October 15 issue of the Journal of Clinical Sleep Medicine shows that respiratory sinus arrhythmia (RSA) is a significant predictor of insomnia in women with breast cancer and confirmed that longer nocturnal wake episodes were associated with a flatter diurnal cortisol slope. view more (2008-10-15)
Rising childhood leukaemia incidence prompts conference
London, UK: The advances in treating childhood leukaemia over the last forty years have been one of cancer's outstanding success stories - but the fall in mortality has diverted attention from a rise in incidence, a London conference will hear today (Monday 6 September). view more (2004-09-04)
Rhythm gene discovered
University of Utah biologists found a gene that controls rhythmic events in a worm's life: swallowing food, laying eggs and pooping. view more (2005-10-07)
Searching for shut eye: Penn study identifies possible sleep gene
While scientists and physicians know what happens if you don't get six to eight hours of shut-eye a night, investigators have long been puzzled about what controls the actual need for sleep. Researchers at the University of Pennsylvania School of Medicine might have an answer, at least in fruit flies. In a recent study of fruit flies, they... view more... (2008-07-30)
New UK Musical Work Inspired By Japanese Art
A new musical work by University of Sussex composer and music lecturer Ed Hughes will be premiered during the Brighton Festival on May 8, 2004. The piece, Memory of Colour, is a Brighton Festival commission to accompany an exhibition that includes a celebrated art installation, Surface of the Lake, by Japanese artist Teruyoshi Yoshida. Yoshida's... view more... (2004-04-26)
Consumption of fish oil does not appear to protect against abnormal heart rhythms
Patients with an implantable cardioverter defibrillator did not have a significantly lower risk of serious abnormal heart rhythms or death by consuming fish oil supplements, which had been thought to have a protective effect. view more (2006-06-14)
Researchers discover stem cell 'guide' that may be key for targeting neural stem cell treatments
UC Irvine School of Medicine researchers have discovered how new neurons born from endogenous neural stem cells are sent to regions of the brain where they can replace old and dying cells, a finding that suggests how stem cell therapies can be specifically targeted to brain regions affected by neurodegenerative diseases or by stroke. view more (2005-06-24)
Scientists unravel the molecular basis of monarch butterfly migration
Since its discovery, the annual migration of eastern North American monarch butterfly has captivated the human imagination and spirit. That millions of butterflies annually fly up to 2000 miles to reach a cluster of pine groves in central Mexico comprising just 70 square miles is for many an awesome and mysterious occurrence. view more (2008-01-09)
Rotating shift workers have lower levels of serotonin
People who work rotating shifts have significantly lower levels of serotonin, a hormone and neurotransmitter in the central nervous system believed to play an important role in the regulation of sleep. view more (2007-08-01)
Maternal depression is associated with significant sleep disturbance in infants
A study in the May 1 issue of the journal SLEEP suggests that babies born to mothers with depression are more likely to suffer from significant sleep disturbances at 2 weeks postpartum that continue until 6 months of age. view more (2009-05-01)
Musical training might be good for the heart
Musical training might be good for the heart, suggests a small study, which shows that it is musical tempo, rather than style, that is the greatest stress buster. view more (2005-09-29)
Jamaican lizards' shows of strength mark territory at dawn, dusk
What does Jack LaLanne have in common with a Jamaican lizard? Like the ageless fitness guru, the lizards greet each new day with vigorous push-ups. That's according to a new study showing that male Anolis lizards engage in impressive displays of reptilian strength -- push-ups, head bobs, and threatening extension of a colorful neck flap called a... view more... (2008-08-28)
Respiratory rhythms can help predict insomnia
The breathing and heart rates and cortisol levels of women with metastatic breast cancer can be used to predict if they'll suffer from chronic insomnia and sleep disruptions, a common complaint from patients who want to maintain their quality of life. view more (2008-10-21)
A resetting signal keeps circadian rhythm on track in Drosophila fruit flies
A Brandeis University study published this week in Nature shows for the first time that a molecular signal maintains coherence among brain clock cells that regulate daily activity of Drosophila melanogaster (fruit flies). view more (2005-11-10)
Role of Thyroid Hormones in Slumber Under Investigation at Rutgers-Camden
While the thyroid has long been linked to metabolism, cutting-edge research underway at Rutgers University-Camden is investigating the possibility that thyroid hormones have an important role in sleep regulation. view more (2007-08-08)
Pacemakers Could Protect Patients With Epilepsy From Sudden Unexplained Death (pp 2157, 2212)
Results of a UK study in this week's issue of THE LANCET highlight how interruptions to the heart's rhythm is an under-reported consequence of epileptic seizures, and that the use of cardiac pacemakers by some epilepsy patients could play a future role in protecting against sudden unexplained death. view more (2004-12-15)
Different Processes Govern Sight, Light Detection
A Johns Hopkins University biologist, in research with implications for people suffering from seasonal affective disorder and insomnia, has determined that the eye uses light to reset the biological clock through a mechanism separate from the ability to see. view more (2008-04-28)
Study identifies pathway required for normal reproductive development
Massachusetts General Hospital (MGH) clinical researchers, in collaboration with basic scientists from the University of California, Irvine (UC Irvine) have identified a new molecular pathway required for normal development of the reproductive, olfactory and circadian systems in both humans and mice. view more (2007-10-16)
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