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Current Circadian Clock News and Events, Circadian Clock News Articles.
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Biological clock disruptions increase breast cancer risk, UGA study finds
The disruption of a person's circadian rhythm -- their 24-hour biological clock -- has been linked to an increased risk of breast cancer, according to new University of Georgia research. The culprit, in this study in particular, is artificial light. 'Exposure to artificial light leads to a significantly higher risk for developing breast cancer,' said Chunla He, a biostatistics graduate student in the UGA College of Public Health. (2014-10-17)

Jet lag can cause obesity by disrupting the daily rhythms of gut microbes
Organisms ranging from bacteria to humans have circadian clocks to help them synchronize their biological activities to the time of day. A Cell study now reveals that gut microbes in mice and humans have circadian rhythms that are controlled by the biological clock of the host in which they reside. Disruption of the circadian clock in the host alters the rhythms and composition of the microbial community, leading to obesity and metabolic problems. (2014-10-16)

Using a novel biological aging clock, UCLA researchers find obesity accelerates aging of the liver
Using a recently developed biomarker of aging known as an epigenetic clock, UCLA researchers working closely with a German team of investigators have found for the first time that obesity greatly accelerates aging of the liver. (2014-10-10)

Treasure trove of ancient genomes helps recalibrate the human evolutionary clock
To improve the modeling and reading of the branches on the human tree of life, authors Francois Balloux et al, compiled the most comprehensive DNA set to date, a new treasure trove of 146 ancient (including Neanderthal and Denisovian) and modern human full mitochondrial genomes (amongst a set of 320 available worldwide). (2014-10-08)

Penn Medicine study finds tongue fat and size may predict sleep apnea in obese adults
Obesity is a risk factor for many health problems, but a new Penn Medicine study published this month in the journal Sleep suggests having a larger tongue with increased levels of fat may be a sign of obstructive sleep apnea in obese adults. (2014-10-06)

Seed science might save the world
Seeds' resilience will help meet the future needs of agronomy to feed the world. (2014-10-02)

At dusk and dawn: Scientists pinpoint biological clock's synchronicity
Scientists have uncovered how pacemaker neurons are synchronized at dusk and dawn in order to maintain the proper functioning of their biological clocks. Their findings enhance our understanding of how sleep-wake cycles are regulated and offer promise for addressing related afflictions. (2014-09-30)

Eyeless Mexican cavefish eliminate circadian rhythm to save energy
The Mexican tetra fish has two variants, a fully-eyed fish living close to the surface and a blind, deep water, cave-dwelling fish. Scientists in this study used these two fish to study evolutionary adaptation in fish residing in near or total darkness. (2014-09-24)

Genetic switch regulates a plant's internal clock based on temperature
Scientists have found the molecular cog in a plant's biological clock that modulates its speed based on temperature. (2014-09-22)

The Miriam Hospital again earns the Joint Commission's Primary Stroke Center Certification
The Miriam Hospital has for the fifth time been designated by the Joint Commission as a Primary Stroke Center. The advanced certification recognizes The Miriam Hospital Stroke Center, which cares for over 650 patients a year, as providing the highest quality stroke care. (2014-09-15)

UNC researchers find final pieces to the circadian clock puzzle
UNC researchers discovered how two genes -- Period and Cryptochrome -- keep the circadian clocks in cells in proper rhythm with the 24-hour day. The finding has implications for drug development for various diseases including cancer and conditions such as jetlag and season affective disorder. (2014-09-14)

Syracuse University physicists explore biomimetic clocks
Working with a team of scientists from the Technical University of Munich, Brandeis University, and Leiden University in the Netherlands, M. Cristina Marchetti and Mark Bowick, professors in the Soft Matter Program in the Syracuse University College of Arts and Sciences, have engineered and studied 'active vesicles.' These purely synthetic, molecularly thin sacs are capable of transforming energy, injected at the microscopic level, into organized, self-sustained motion. (2014-09-05)

Breakthrough study identifies genetic link between the circadian clock and seasonal timing
University of Leicester researchers uncover new insights into day-length measurement in flies. (2014-09-04)

Changing temperature powers sensors in hard-to-reach places
University of Washington researchers have taken inspiration from a centuries-old clock design and created a power harvester that uses natural fluctuations in temperature and pressure as its power source. (2014-09-03)

Researching fundamental rhythms of life
Casey Diekman, assistant professor of mathematical sciences at New Jersey Institute of Technology, is helping to gain greater insight into the biological clock that sets the pace for daily life. (2014-08-26)

JILA team finds first direct evidence of 'spin symmetry' in atoms
Joint Institute for Laboratory Astrophysics physicists led by theorist Ana Maria Rey and experimentalist Jun Ye have observed the first direct evidence of symmetry in the magnetic properties -- or nuclear 'spins' -- of atoms. The advance could spin off practical benefits such as the ability to simulate and better understand exotic materials such as superconductors. (2014-08-21)

Treatment for overactive bladder and irritable bowel syndrome advanced through pioneering research
Researchers at the University of Surrey have discovered how the receptors responsible for contractions in the bladder, regulate the body's clock genes. The new study, published today in The FASEB Journal, has found that this clock activity in turn regulates the cycle of all cells in the body. The team of researchers also discovered that the local biological clock and its control are weakened in aging bladders, demonstrating the importance of the clock in bladder physiology and aging. (2014-08-21)

Researchers obtain key insights into how the internal body clock is tuned
Researchers at University of Texas Southwestern Medical Center have found a new way that internal body clocks are regulated by a type of molecule known as long non-coding RNA. (2014-08-18)

Tick-tock: How to quite literally speed up a woman's biological clock
The metaphor of a ticking clock is often used to refer to a woman's growing urge -- from puberty onwards to menopause -- to conceive before her childbearing years are over. New research in Springer's journal Human Nature shows that there's more truth to this phrase than you might think. (2014-08-13)

Single gene controls jet lag
Salk researchers have discovered a master gene responsible for sleep and wake cycles, offering hope for a drug that could help reset sleep. (2014-08-13)

Ten-year study highlights sleep deficiency and sleep medication use in astronauts
In an extensive study of sleep monitoring and sleeping pill use in astronauts, researchers from Brigham and Women's Hospital Division of Sleep and Circadian Disorders, Harvard Medical School, and the University of Colorado found that astronauts suffer considerable sleep deficiency in the weeks leading up to and during space flight. The research also highlights widespread use of sleeping medication use among astronauts. (2014-08-07)

When highest perceptual ability occurs in a day?
Many previous chronobiological studies have reported on detection of circadian fluctuation in performing simple motor tasks, fine skilled movement, and anaerobic exercise. However, to the best of our knowledge, literature concerning variation of sensory function according to the circadian cycle is lacking. (2014-08-04)

Management of anticoagulant-associated intracerebral hemorrhage
This supplement covers the current knowledge of anticoagulant-associated intracerebral hemorrhage and methods in use for management of the condition. (2014-08-01)

Strict genomic partitioning by biological clock separates key metabolic functions
Much of the liver's metabolic function is governed by circadian rhythms -- our own body clock -- and UC Irvine researchers have now found two independent mechanisms by which this occurs. (2014-07-31)

Dimly lit working environments: Correcting your body clock is possible!
Researchers at Inserm, led by Claude Gronfier, have, for the first time, conducted a study under real conditions on the body clocks of members of the international polar research station Concordia. The researchers have shown that a particular kind of artificial light is capable of ensuring that their biological rhythms are correctly synchronized despite the absence of sunlight. (2014-07-30)

Drugs used to treat lung disease work with the body clock
Scientists from The University of Manchester have discovered why medication to treat asthma and pneumonia can become ineffective. Findings, published in Nature Medicine, show that drugs widely used to treat lung diseases work with the body clock. (2014-07-27)

Exposure to dim light at night may make breast cancers resistant to tamoxifen
For rats bearing human breast tumors, exposure to dim light at night made the tumors resistant to the breast cancer drug tamoxifen, according to data published in Cancer Research, a journal of the American Association for Cancer Research. The negative effects of dim light exposure on tamoxifen treatment were overcome by giving rats a melatonin supplement during the night. (2014-07-25)

Total darkness at night is key to success of breast cancer therapy -- Tulane study
Exposure to light at night, which shuts off nighttime production of the hormone melatonin, renders breast cancer completely resistant to tamoxifen, a widely used breast cancer drug, says a new study by Tulane University School of Medicine cancer researchers. (2014-07-25)

'Comb on a chip' powers new NIST/Caltech atomic clock design
NIST and CalTech researchers have demonstrated a novel design for a small atomic clock that is based on a chip-scale frequency comb, or a microcomb. (2014-07-22)

Lipoic acid helps restore, synchronize the 'biological clock'
Researchers have discovered a possible explanation for the surprisingly large range of biological effects that are linked to a micronutrient called lipoic acid: It appears to reset and synchronize circadian rhythms, or the 'biological clock' found in most life forms. (2014-07-17)

First comprehensive library of master genetic switches in plants
Researchers have created the first comprehensive library of genetic switches in plants, setting the stage for scientists around the globe to better understand how plants adapt to environmental changes and to design more robust plants for future food security. (2014-07-17)

In development, it's all about the timing
Closely related organisms share most of their genes, but these similarities belie major differences in behavior, intelligence, and physical appearance. Scientists are beginning to appreciate that the timing of the events that happen during development plays a decisive role in defining an organism. Today, a team of scientists at CSHL has identified LIN-42 as a key regulator of developmental timing, governing a broad range of events throughout maturation. (2014-07-17)

Timing is not only ticking
Max Planck researchers discover that a Doppler effect influences segmentation. (2014-07-14)

What you eat may affect your body's internal biological clock
Food not only nourishes the body but also affects its internal biological clock, which regulates the daily rhythm of many aspects of human behavior and biology. Researchers reporting in the Cell Press journal Cell Reports provide new insights into how adjusting the clock through dietary manipulation may help patients with various conditions and show that insulin may be involved in resetting the clock. (2014-07-10)

Sun-like stars reveal their ages
A new technique for measuring the age of a star using its spin -- gyrochronology -- is coming into its own. Today astronomers are presenting the gyrochronological ages of 22 sun-like stars. Before this, only two sun-like stars had measured spins and ages. (2014-07-10)

Scripps Florida scientists uncover new compounds that could affect circadian rhythm
Scientists from the Florida campus of The Scripps Research Institute have discovered a surprising new role for a pair of compounds that have the potential to alter circadian rhythm, the complex physiological process, present in most living things, that responds to a 24-hour cycle of light and dark. At least one of these compounds could be developed as a chemical probe to uncover new therapeutic approaches to a range of disorders, including diabetes and obesity. (2014-07-08)

Contradictory findings about the effect of the full moon on sleep
According to folklore, the full moon affects human sleep. International researchers are trying to determine whether there is any truth to the belief. Studies by a team at The University of Gothenburg in Sweden have found that people actually sleep 20 minutes less when the moon is full. (2014-07-08)

Preconceptional factors in the prediction of fertility and the reproductive lifespan
A project in Denmark whose aim is to assess the reliability of preconceptional lifestyle and biological factors as predictors of fertility has found a pronounced effect of the contraceptive pill on markers used to assess 'ovarian reserve,' a predictor of future reproductive lifespan. (2014-07-01)

A study warns of the risk entailed when night owls -- 'evening-type' people -- drive early in the morning
Researchers from the University of Granada have shown that individual chronotype -- that is, whether you are a 'morning-type' or an 'evening-type', depending on the time of day when your physiological functions are more active -- markedly influences driving performance. (2014-06-27)

Cell division discovery could optimise timing of chemotherapy and explain some cancers
Research led by the University of Warwick in collaboration with groups in Nice and Rotterdam has been able to demonstrate how the cycle of cell division in mammalian cells synchronizes with the body's own daily rhythm, its circadian clock. The study not only helps to explain why people with sustained disrupted circadian rhythms can be more susceptible to cancer, it may also help establish the optimal time of day to administer chemotherapy. (2014-06-24)

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