Popular Circadian Clock News and Current Events

Popular Circadian Clock News and Current Events, Circadian Clock News Articles.
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Brain neurons help keep track of time
Turning the theory of how the human brain perceives time on its head, a novel analysis in mice reveals that dopamine neuron activity plays a key role in judgment of time, slowing down the internal clock. (2016-12-08)

Army project brings quantum internet closer to reality
A US Army research result brings the quantum internet a step closer. Such an internet could offer the military security, sensing and timekeeping capabilities not possible with traditional networking approaches. (2019-09-26)

Does extra sleep on the weekends repay your sleep debt? No, researchers say
Insufficient sleep and untreated sleep disorders put people at increased risk for metabolic problems, including obesity and diabetes. But is extra sleep on the weekends enough to reduce those risks? The short answer, according to new findings reported in Current Biology on Feb. 28, is 'no.' (2019-02-28)

Optical Atomic Clock: A long look at the captured atoms
In the case of one of the candidates for an optical clock which is developed at Physikalisch-Technische Bundesanstalt, an optical grating clock with strontium atoms, the loading of cold atoms into an optical grating has been optimized to such an extent that approx. 106 strontium atoms are loaded into the grating within 150 milliseconds at a temperature of a few microkelvin. There, the atoms remain stored for over one second and are available for a precision measurement of the optical frequency. (2008-02-05)

Alignment of mother and offspring body clock could prevent diseases such as heart disease and obesity
The care provided by a mother can impact the body clock and health of offspring after birth, according to new research published in The Journal of Physiology. By reducing abnormalities in the body clock of offspring, it may be possible to develop therapies for serious lifestyle-related diseases, such as heart disease and obesity. (2018-05-11)

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)

Physics: Toward a practical nuclear pendulum
Researchers from Ludwig-Maximilians-Universitaet (LMU) Munich have, for the first time, measured the lifetime of an excited state in the nucleus of an unstable element. This is a major step toward a nuclear clock that could keep even better time than today's best atomic timekeepers. (2017-01-27)

More people miss NHS appointments when the clocks go forward
The number of missed hospital outpatient appointments increases following the clock change on March 25 2018. Patients are 5% more likely to miss an appointment in the week after the clocks go forward compared with the previous week. NHS figures show that there were 8 million missed appointments in 2016/17. Each hospital outpatient appointment costs £120 so missed appointments represent a significant financial issue for the NHS and have a negative impact on patient care. (2018-03-23)

Financial stress is associated with migraine, if you have specific circadian gene variants
People with a specific variation in the CLOCK gene have more migraines under financial stress. This work, the first time that the genetics of circadian rhythms has been shown to have an effect on migraine, is presented at the ECNP conference in Paris. (2017-09-02)

Outdoor light at night linked with increased breast cancer risk in women
Women who live in areas with higher levels of outdoor light at night may be at higher risk for breast cancer than those living in areas with lower levels, according to a large long-term study from Harvard T.H. Chan School of Public Health. The link was stronger among women who worked night shifts. (2017-08-17)

Timing is everything, to our genes
Salk scientists discover critical gene activity follows a biological clock, affecting diseases of the brain and body. (2018-02-08)

Research shows why we struggle to get good night's sleep as we get older
New research has identified the way age impairs the ability of the circadian clock in mammals to re-set itself when exposed to light, resulting in disruption to sleeping patterns and consequent threats to wellbeing. (2018-03-27)

Systems biology approach identifies nutrient regulation of biological clock in plants
Using a systems biological analysis of genome-scale data from the model plant Arabidopsis, an international team of researchers identified that the master gene controlling the biological clock is sensitive to nutrient status. The study will appear in the latest issue of the Proceedings of the National Academy of Sciences. (2008-03-14)

Shedding light on new treatment options for perimenopausal depression and sleep problems
Light therapy has long been a recognized treatment option for depression. But can it help perimenopausal women struggling with depression and sleep problems as the result of hormone changes? A new study from the University of California suggests that it can by altering a woman's natural sleep/wake cycle. Preliminary study results will be presented during The North American Menopause Society (NAMS) Annual Meeting in San Diego, Oct. 3-6, 2018. (2018-10-03)

Later circadian timing of food intake is associated with increased body mass index
BWH investigators examine the relationships between body fat and body mass index, and the timing of food consumption, to time of day and to the body's circadian or body clock. (2017-09-08)

'Cyclops' algorithm spots daily rhythms in cells
Humans, like virtually all other complex organisms on Earth, have adapted to their planet's 24-hour cycle of sunlight and darkness. That circadian rhythm is reflected in human behavior, of course, but also in the molecular workings of our cells. Now scientists have developed a powerful tool for detecting and characterizing those molecular rhythms -- a tool that could have many new medical applications. (2017-04-25)

Revisiting existing drugs finds molecules that control body clocks
Using drug repurposing, a team of researchers led by animal biologists at Nagoya University has discovered compounds that can either shorten or lengthen the circadian rhythm in human cells. A hormone, also known as a common anti-aging supplement demonstrated period-shortening activities, and when it was fed to mice, jet lag symptoms were significantly reduced. (2018-04-18)

Feeling sleepy is all in your genes
Genes responsible for our 24-hour body clock influence not only the timing of sleep, but also appear to be central to the actual restorative process of sleep, according to research published in the online open access journal BMC Neuroscience. The study identified changes in the brain that lead to the increased desire and need for sleep during time spent awake. (2007-10-17)

NUS researchers confine mature cells to turn them into stem cells
Recent research led by Professor G.V. Shivashankar of the Mechanobiology Institute at the National University of Singapore and the FIRC Institute of Molecular Oncology in Italy, has revealed that mature cells can be reprogrammed into re-deployable stem cells without direct genetic modification -- by confining them to a defined geometric space for an extended period of time. (2018-07-09)

Circadian rhythm-metabolism link discovered
UC Irvine researchers have found a molecular link between circadian rhythms -- our own body clock -- and metabolism. The discovery reveals new possibilities for the treatment of diabetes, obesity and other related diseases. (2008-07-24)

Secrets of succulents' water-wise ways revealed
Plant scientists at the University of Liverpool have revealed new insights into the mechanisms that allow certain plants to conserve water and tolerate drought. The research, which is published in The Plant Cell, could be used to help produce new crops that can thrive in previously inhospitable, hot and dry regions across the world. (2017-11-16)

Mouse mutants with sleep defects may shed light on the mysteries of sleep
The first unbiased genetic screen for sleep defects in mice has yielded two interesting mutants, Sleepy, which sleeps excessively, and Dreamless, which lacks rapid eye movement (REM) sleep. The findings are the first step towards discovering the biochemistry that controls the switch from wakefulness to sleep, the researchers say. (2016-11-02)

Wound healing guided by cellular clock
Providing insight into why wound healing outcomes vary depending on the time of the injury, researchers report that fibroblasts -- cells critical to this process -- contribute to healing differently based on cues from their circadian clocks. (2017-11-08)

Salk scientists curb growth of cancer cells by blocking access to key nutrients
Salk researchers have discovered how to curb the growth of cancer cells by blocking the cells' access to certain nutrients. (2018-01-10)

Human daily rhythms: Clocks vs. light/dark cycle
From time use surveys in 17 European countries and two American countries (located from 35º to 61º latitude) this study characterizes laborer's primary activities and get them positioned along the daily and yearly cycle of light and dark. (2018-04-03)

UCI-led study reveals how fasting can improve overall health
In a University of California, Irvine-led study, researchers found evidence that fasting affects circadian clocks in the liver and skeletal muscle, causing them to rewire their metabolism, which can ultimately lead to improved health and protection against aging-associated diseases. The study was published recently in Cell Reports. (2019-01-14)

Melatonin may help treat blood cancers
Researchers have examined the potential benefits of melatonin, a hormone made by a small gland in the brain, for treating blood cancers such as leukemia and lymphoma. (2017-09-01)

Bright light therapy at midday helped patients with bipolar depression
Daily exposure to bright white light at midday significantly decreased symptoms of depression and increased functioning in people with bipolar disorder, a recent Northwestern Medicine study found. More than 68 percent of patients who received midday bright light achieved a normal level of mood, compared to 22.2 percent of patients who received a dim placebo light. (2017-10-10)

Early to bed, early to rise
In an upcoming G&D paper, a team of German scientists presents a genetic basis for understanding human morning lark behavior. Dr. Achim Kramer (Charité Universitaetsmedizin Berlin) and colleagues have uncovered a genetic cause for the human familial advanced sleep phase syndrome (FASPS), which causes people to both go to sleep and wake up very early. (2006-09-19)

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 might have an answer, at least in fruit flies. In a recent study of fruit flies, they identified a gene that controls sleep. (2008-07-29)

Despite benefits, half of parents against later school start times
Leading pediatrics and sleep associations agree: Teens shouldn't start school so early. Yet University of Michigan research finds parents are split almost down the middle on whether they support delays in school start times that might permit their 13- to 17-year-olds to sleep later on school days. (2017-08-18)

University of Guelph researchers discover why females have heart health advantage
University of Guelph Prof. Tami Martino has revealed in a first-ever study the biological reasons why females have a heart health advantage over men and it's tied to ovarian hormones. Essentially the interplay between female ovarian hormones and a circadian 'clock' molecule protects the heart health of women until they reach menopause. (2017-10-04)

Alcohol interferes with body's ability to regulate sleep
Researchers from the University of Missouri School of Medicine have found that drinking alcohol to fall asleep interferes with sleep homeostasis, the body's sleep-regulating mechanism. (2014-12-10)

What makes circadian clocks tick?
Circadian clocks arose as an adaptation to dramatic swings in daylight hours and temperature caused by the Earth's rotation, but we still don't fully understand how they work. During the 62nd Biophysical Society Meeting, held Feb. 17-21, Andy LiWang, University of California, Merced, will present his lab's work studying the circadian clock of blue-green colored cyanobacteria. LiWang's group discovered that how the proteins move hour by hour is central to cyanobacteria's circadian clock function. (2018-02-18)

Study: Sleeping sickness not just a sleeping disorder
An international study from the Instituto de Medicina Molecular shows one of Africa's most lethal diseases is actually a circadian rhythm disorder caused by the acceleration of biological clocks controlling a range of vital functions besides sleep. (2018-01-04)

Mapping neural networks to strengthen circadian rhythms
While the evidence behind this age-related weakening of the circadian rhythm has been established in medical literature, the mechanisms behind it, and the connectivity structure of the neurons, have remained elusive. To better understand these neuronal and hormonal mechanisms and help develop potential treatments, researchers have conducted experimental analyses of the SCN's connections, with the goal of determining its degree of heterogeneity. They discuss their work in this week's CHAOS. (2016-05-31)

E-cigarettes may lead to accumulation of fat in the liver
Using e-cigarettes may lead to an accumulation of fat in the liver, a study of mice exposed to the devices suggests. The research will be presented Sunday, March 18, at ENDO 2018, the Endocrine Society's 100th annual meeting in Chicago, Ill. (2018-03-18)

How birds can detect the Earth's magnetic field
Researchers at Lund University in Sweden have made a key discovery about the internal magnetic compass of birds. Biologists have identified a single protein without which birds probably would not be able to orient themselves using the Earth's magnetic field. (2018-04-06)

Clock protein controls daily cycle of gene expression by regulating chromosome loops
It's well known that the human body functions on a 24-hour schedule. The up-and-down daily cycles of a long-studied clock protein called Rev-erb coordinates the ebb and flow of gene expression by tightening and loosening loops in chromosomes, according to new research. (2018-02-09)

What fluffy bunnies can tell us about domestication: It didn't go the way you think
It turns out that nobody knows when rabbits were domesticated. Despite a well-cited story of the domestic bunny's origins, a review published on Feb. 14 in Trends in Ecology and Evolution finds that historical and archaeological records and genetic methods all suggest different timeframes for its domestication. But the researchers involved in the study don't think this puzzle is a dead end. Instead, they believe it's an indication that domestication happens on a continuum. (2018-02-14)

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