Circadian Rhythm News and Research

Latest Circadian Rhythm News and Research

Inadequate sleep linked to higher diabetes risk

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12 Apr 2012

Two Rev-erb proteins work together to control fat metabolism

The 24-hour internal clock controls many aspects of human behavior and physiology, including sleep, blood pressure, and metabolism. Disruption in circadian rhythms leads to increased incidence of many diseases, including metabolic disease and cancer. Each cell of the body has its own internal timing mechanism, which is controlled by proteins that keep one another in check.

7 Apr 2012

Powerful link between circadian rhythms and metabolism

The discovery of a major gear in the biological clock that tells the body when to sleep and metabolize food may lead to new drugs to treat sleep problems and metabolic disorders, including diabetes.

7 Apr 2012

New synthetic small molecules could treat obesity, diabetes and sleep disorders

Scientists from the Florida campus of The Scripps Research Institute have synthesized a pair of small molecules that dramatically alter the core biological clock in animal models, highlighting the compounds' potential effectiveness in treating a remarkable range of disorders-including obesity, diabetes, high cholesterol, and serious sleep disorders.

30 Mar 2012

Circadian rhythms control production of metabolites

By analyzing the hundreds of metabolic products present in the liver, researchers with the UC Irvine Center for Epigenetics & Metabolism have discovered that circadian rhythms - our own body clock - greatly control the production of such key building blocks as amino acids, carbohydrates and lipids.

20 Mar 2012

Obesity appears to increase risk of mortality tied to sleeping pills

Obesity appears to significantly increase the risk of death tied to sleeping pills, nearly doubling the rate of mortality even among those prescribed 18 or fewer pills in a year, researchers reported Friday.

17 Mar 2012

Conference highlights studies on metabolism, aging and monarch butterfly migration

The Genetics Society of America's 53rd Annual Drosophila Research Conference, March 7-11 at the Sheraton Chicago Hotel & Towers, will showcase diverse efforts to understand basic biological processes through the easy-to-study fruit fly, Drosophila melanogaster, and other insects.

12 Mar 2012

Daylight-saving time may increase risk of heart attack

Daylight-saving time this year begins March 11, and while we all might look forward to another hour of sunshine a University of Alabama at Birmingham expert says the time change is not necessarily good for your health.

8 Mar 2012

Nitrogen balance occurs with a precise 24-hour rhythm in mammals

Researchers at Case Western Reserve University School of Medicine demonstrated that nitrogen balance, the process of utilizing amino acids and disposing of their toxic byproducts, occurs with a precise 24-hour rhythm - also known as circadian rhythm - in mammals. Disruption of this cycle has a direct impact on survival of organisms, and may predispose one to life altering diseases including diabetes and cardiovascular disease.

7 Mar 2012

Sleeping pills may increase risk of cancer-related death

People are relying on sleeping pills more than ever to get a good night's rest, but a new study by Scripps Clinic researchers links the medications to a 4.6 times higher risk of death and a significant increase in cancer cases among regular pill users.

28 Feb 2012

Circadian rhythm can influence a heart attack

Researchers have found that a biological clock can influence a heart attack. The risk of “sudden cardiac death” peaks in the morning and rises again in the evening as shown in lab animals.

23 Feb 2012

First molecular evidence links body's natural circadian rhythms to SCD

A fundamental discovery reported in the March 1st issue of the journal Nature, uncovers the first molecular evidence linking the body's natural circadian rhythms to sudden cardiac death (SCD). Ventricular arrhythmias, or abnormal heart rhythms, are the most common cause of sudden cardiac death: the primary cause of death from heart disease.

23 Feb 2012

Scientists discover missing link between body's biological clock and sugar metabolism system

Scientists have discovered a missing link between the body's biological clock and sugar metabolism system, a finding that may help avoid the serious side effects of drugs used for treating asthma, allergies and arthritis.

20 Dec 2011

Working night shifts may raise risk of diabetes: Study

About 26% percent of the American workforce, including health-care workers and sanitation staff, need to work night shifts. Earlier research has shown that regular night shifts may disrupt the circadian rhythm, raising the risk of heart disease, obesity, ulcers and even depression.

8 Dec 2011

Circadian activity rhythm linked to subsequent development of dementia or MCI

Older women with weaker circadian rhythms, who are less physically active or are more active later in the day are more likely to develop dementia or mild cognitive impairment than women who have a more robust circadian rhythm or are more physically active earlier in the day. That's the finding of a new study in the latest issue of the Annals of Neurology.

7 Dec 2011

New First Choice infographic explores issue of SAD and winter blues

First Choice, one of the UK's leading leisure travel companies, has released an infographic that sheds light on how the lack of sunshine during the winter months is affecting a large proportion of the population in northern countries.

24 Nov 2011

Infarct size associated with time of day onset of ischemia

The size of a heart attack and subsequent left-ventricular function are significantly different based on the time of day onset of ischemia, according to a first of its kind study in humans, published online Nov. 17 in Circulation Research.

22 Nov 2011

Study reveals role of circadian rhythms in regenerative capacity of skin stem cells

The investigation reveals the role of the daily biological clock (circadian rhythms) in the regenerative capacity of skin stem cells. Disruption of this rhythm results in premature tissue ageing and a greater predisposition to the development of skin tumours. The

10 Nov 2011

Vanda third quarter total revenues increase to $8.0 million

Vanda Pharmaceuticals Inc., a biopharmaceutical company focused on the development and commercialization of products for central nervous system disorders, today announced financial and operational results for the third quarter and nine months ended September 30, 2011.

4 Nov 2011

Ten rules for good sleep

Generally, it is always easier to stay up an hour later than to go to sleep an hour earlier, so most people have relatively little problem setting the clocks back in the Fall. This is because our basic circadian rhythm (the "body clock") actually seems to be programmed for a longer than 24 hour day: it runs a little slow.

4 Nov 2011