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Current Circadian Clock News and Events, Circadian Clock News Articles.
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Night owls can 'retrain' their body clocks to improve mental well-being and performance
A simple tweak to the sleeping patterns of 'night owls' -- people with extreme late sleeping and waking habits -- could lead to significant improvements in sleep/wake timings, improved performance in the mornings, better eating habits and a decrease in depression and stress. (2019-06-09)
Teens sleep longer, are more alert for homework when school starts later
Preliminary findings from a new study of middle school and high school students suggest that they got more sleep and were less likely to feel too sleepy to do homework after their district changed to later school start times. (2019-06-07)
Fishing a line coupled with clockwork for daily rhythm
Cells harbor molecular clocks that generate a circadian oscillation of about 24 h. (2019-06-06)
Rapamycin retards epigenetic ageing of keratinocytes
Age, as we know it, is clearly an inappropriate measurement because it is based purely on the passing of time, irrespective of biological changes in our body. (2019-06-05)
Sleep, wake, repeat: How do plants work on different time zones?
Researchers at the Earlham Institute, UK, have developed a new method to reliably measure plant circadian clocks and how different plants respond to day and night, and that these circadian rhythms change as they age. (2019-06-03)
The body responds to variations in light between the day and night independently of the brain
In mice whose body clock -- an internal mechanism located in the brain -- does not work properly, each tissue still knows what time it is and has the capacity to respond to changes in light intensity. (2019-05-31)
Circadian clock and fat metabolism linked through newly discovered mechanism
Princeton University researchers found that the enzyme Nocturnin, known for its role in fat metabolism and circadian rhythm, acts on two well-established molecules in metabolism. (2019-05-30)
UCI research helps shed new light on circadian clocks
Can your liver sense when you're staring at a television screen or cellphone late at night? (2019-05-30)
Researchers investigate hormonal links between diet and obesity
Scientists have found another hint that time of day may play a role in how the body burns fuel, with implications for weight gain and heart health. (2019-05-23)
The insulin under the influence of light
By understanding how the brain links the effects of insulin to light, researchers (UNIGE) are deciphering how insulin sensitivity fluctuates according to circadian cycles. (2019-05-21)
Seasonal clock changing helps to synchronize human sleep/wake cycle across latitude
In winter, the sleep/wake cycle is dominated by sunrise. Wake-up times tend to occur during the winter twilight regulated by the circadian photorecpetive mechanism. (2019-05-20)
Eliminating extended work shifts improves sleep duration for senior resident physicians
A new study led by investigators from Brigham and Women's Hospital comparing the work hours and sleep obtained by pediatric resident physicians working extended shifts with those whose scheduled shift lengths were limited to no more than 16 consecutive hours found that hours of sleep per week increased under a modified schedule. (2019-05-20)
Circadian mechanism may not be driver behind compound linked to obesity and diabetes
SR9009 is a compound that can lead to a wide range of health benefits in animals, including reduced risk of obesity and type 2 diabetes. (2019-05-20)
NIST team demonstrates heart of next-generation chip-scale atomic clock
Physicists at the National Institute of Standards and Technology (NIST) and partners have demonstrated an experimental, next-generation atomic clock--ticking at high 'optical' frequencies -- that is much smaller than usual, made of just three small chips plus supporting electronics and optics. (2019-05-17)
Being sick in the morning can be different from being sick at night
In a review published May 17, 2019 in the journal Trends in Immunology, researchers discuss how time of day affects the severity of afflictions ranging from allergies to heart attacks. (2019-05-17)
Dead zones in circadian clocks
Circadian clocks of organisms respond to light signals during night but do not respond in daytime. (2019-05-14)
A new way to wind the development clock of cardiac muscle cells
A study published in the journal Stem Cells describes a new and unexpected way to accelerate the maturation of induced pluripotent stem cells into cardiac muscle cells. (2019-05-14)
Study questions current regulations on light pollution and calls for paradigm shift
Researchers from the Universities of Granada and Krakow have warned that Spain's current legislation on light pollution fails to take into account all the necessary factors -- including human vision itself. (2019-05-09)
Researchers discover 'daywake,' a siesta-suppressing gene
Rutgers researchers have identified a siesta-suppressing gene in fruit flies, which sheds light on the biology that helps many creatures, including humans, balance the benefits of a good nap against those of getting important activities done during the day. (2019-05-09)
Pregnancy shifts the daily schedule forward
New research from Washington University in St. Louis finds that women and mice both shift their daily schedules earlier by up to a few hours during the first third of their pregnancy. (2019-04-30)
Circadian rhythm disruption tips the cell-cycle balance toward tumor growth
Disrupting normal circadian rhythms promotes tumor growth and suppresses the effects of a tumor-fighting drug, according to a new study publishing April 30, 2019 in the open-access journal PLOS Biology by Yool Lee, Amita Sehgal, and colleagues at the University of Pennsylvania. (2019-04-30)
Chronic disruptions to circadian rhythms promote tumor growth, reduce efficacy of therapy
In a study published today in the journal PLOS Biology, researchers at Penn Medicine show circadian disruptions trigger an increase in cell proliferation that, ultimately, shifts the cell-cycle balance and stimulates the growth of tumors in mice. (2019-04-30)
Study links gene to sleep problems in autism
Research conducted by a team of Washington State University researchers has found that sleep problems in patients with autism spectrum disorder may be linked to a mutation in the gene SHANK3 that in turn regulates the genes of the body's 24-hour day and night cycle. (2019-04-29)
Gestational diabetes in India and Sweden
Indian women are younger and leaner than Swedish women when they develop gestational diabetes, a new study from Lund University shows. (2019-04-26)
MRC researchers discover how eating feeds into the body clock
The Medical Research Council (MRC)-funded study, published today in the journal Cell, is the first to identify insulin as a primary signal that helps communicate the timing of meals to the cellular clocks located across our body, commonly known as the body clock. (2019-04-25)
Researchers create the first maps of two melatonin receptors essential for sleep
An international team of researchers used an X-ray laser at the Department of Energy's SLAC National Accelerator Laboratory to create the first detailed maps of two melatonin receptors that tell our bodies when to go to sleep or wake up and guide other biological processes. (2019-04-24)
A good night's sleep may be in sight
Having a map of the two cell receptors for melatonin could lead to better drugs to address insomnia or other conditions affected by those receptors. (2019-04-24)
Surrey academics weigh into the debate on daylight saving time and school start time
A switch to permanent daylight saving time will undo any positive effects on sleep of delaying school start times, according to researchers from the University of Surrey. (2019-04-22)
Permanent daylight savings may cancel out changes to school start times
Several states in the US, including California, Washington, Florida, and North Carolina, are now considering doing away with the practice by making daylight savings time (DST) permanent. (2019-04-22)
Two studies explore whether time of day can affect the body's response to exercise
Two papers appearing April 18, 2019 in the journal Cell Metabolism confirm that the circadian clock is an important factor in how the body responds to physical exertion. (2019-04-18)
In mice, feeding time influences the liver's biological clock
The timing of food intake is a major factor driving the rhythmic expression of most genes in the mouse liver, researchers report April 16, 2019 in the journal Cell Reports. (2019-04-16)
New super-accurate optical atomic clocks pass critical test
Researchers have measured an optical clock's ticking with record-breaking accuracy while also showing the clock can be operated with unprecedented consistency. (2019-04-11)
NASA Twins Study finds spaceflight affects gut bacteria
During his yearlong stay on the International Space Station (ISS), astronaut Scott Kelly experienced a shift in the ratio of two major categories of bacteria in his gut microbiome. (2019-04-11)
Research identifies genetic causes of poor sleep
The largest genetic study of its kind ever to use accelerometer data to examine how we slumber has uncovered a number of parts of our genetic code that could be responsible for causing poor sleep quality and duration. (2019-04-05)
U of G study reveals why heart failure patients suffer depression, impaired thinking
A new study by University of Guelph researchers explains why heart failure patients often have trouble with thinking and depression, pointing to ways to prevent and treat both heart and brain maladies through the emerging field of circadian medicine. (2019-04-05)
WVU researchers identify how light at night may harm outcomes in cardiac patients
In a study funded by the National Institutes of Health, West Virginia University neuroscientists linked white light at night--the kind that typically illuminates hospital rooms--to inflammation, brain-cell death and higher mortality risk in cardiac patients. (2019-04-03)
Circadian clock plays unexpected role in neurodegenerative diseases
Northwestern University researchers induced jet lag in a fruit fly model of Huntington disease and found that jet lag protected the flies' neurons. (2019-04-02)
Special journal issue highlights shift work science, solutions
Shift work and non-standard work schedules provide clear economic benefits in a 24/7 society, but also come with issues related to insufficient sleep, misalignment of the biological clock, and other factors that influence the safety, health and well-being of workers. (2019-04-01)
U of T Mississauga study identifies 'master pacemaker' for biological clocks
What makes a biological clock tick? According to a new study from U of T Mississauga, the surprising answer lies with a gene typically associated with stem and cancer cells. (2019-03-27)
BPA exposure during pregnancy can alter circadian rhythms
Exposure to the widely used chemical bisphenol A (BPA) during pregnancy, even at levels lower than the regulated 'safe' human exposure level, can lead to changes in circadian rhythms, according to a mice study to be presented Monday at ENDO 2019, the Endocrine Society's annual meeting in New Orleans, La. (2019-03-24)
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