Circadian Rhythm News and Research RSS Feed - Circadian Rhythm News and Research

Circadian Rhythm is the regular recurrence, in cycles of about 24 hours, of biological processes or activities, such as sensitivity to drugs and stimuli, hormone secretion, sleeping, feeding, etc. This rhythm seems to be set by a 'biological clock' which seems to be set by recurring daylight and darkness.
Scientists identify key pathway that regulates 'switch' between wakefulness and sleep

Scientists identify key pathway that regulates 'switch' between wakefulness and sleep

Falling asleep and waking up are key transitions in everyone's day. Millions of people have trouble with these transitions - they find it hard to fall asleep or stay asleep at night, and hard to stay awake during the day. Despite decades of research, how these transitions work - the neurobiological mechanics of our circadian rhythm - has remained largely a mystery to brain scientists. [More]
Chronic lack of sleep, irregular sleep-wake cycles may increase risk of Parkinson's disease

Chronic lack of sleep, irregular sleep-wake cycles may increase risk of Parkinson's disease

Chronic lack of sleep and irregular sleep-wake cycles may be risk factors of Parkinson's disease, new work by researchers at the Lewis Katz School of Medicine at Temple University suggests. In an animal model, the researchers show that disturbances in circadian rhythm that exist before Parkinson's onset dramatically worsen motor and learning deficits brought on by the disease. [More]
Genetic variants associated with preference to mornings or nights

Genetic variants associated with preference to mornings or nights

23andMe, Inc., the leading personal genetics company, today announced the results of a genome-wide association study (GWAS) identifying genetic variants associated with being a morning person. [More]
Human body clock study paves way for drug treatment of osteoarthritis

Human body clock study paves way for drug treatment of osteoarthritis

A University of Manchester biologist has for the first time established that the painful and debilitating symptoms endured by osteoarthritis sufferers are intrinsically linked to the human body clock. [More]
Lucimed offers Luminette light therapy glasses for people suffering from seasonally induced issues

Lucimed offers Luminette light therapy glasses for people suffering from seasonally induced issues

For millions of people, the arrivalof fall and winter are unwelcome events. A change in seasons often brings a change in their physical and mental health, due to fewer hours of sunlight. [More]
Jet lag-like sleep disruptions promote memory problems, chemical alterations in the brain

Jet lag-like sleep disruptions promote memory problems, chemical alterations in the brain

Chemical changes in brain cells caused by disturbances in the body's day-night cycle may be a key underlying cause of the learning and memory loss associated with Alzheimer's disease, according to a University of California, Irvine study. [More]
Melatonin and the circadian rhythm: an interview with Professor Kennaway, University of Adelaide

Melatonin and the circadian rhythm: an interview with Professor Kennaway, University of Adelaide

The production of melatonin is controlled by a part of the brain called the suprachiasmatic nucleus (SCN) and its timing fine-tuned by our exposure to light during the morning. [More]

AASM's new guideline provides updated recommendations for treatment of circadian rhythm sleep-wake disorders

A new clinical practice guideline published by the American Academy of Sleep Medicine provides clinicians with updated recommendations for the treatment of intrinsic circadian rhythm sleep-wake disorders (CRSWDs). [More]
Cancer-causing gene disrupts internal rhythm, metabolic pathways in cancer cells

Cancer-causing gene disrupts internal rhythm, metabolic pathways in cancer cells

Myc is a cancer-causing gene responsible for disrupting the normal 24-hour internal rhythm and metabolic pathways in cancer cells, found a team led by researchers from the Perelman School of Medicine at the University of Pennsylvania. Postdoctoral fellow Brian Altman, PhD, and doctoral student Annie Hsieh, MD, both from the lab of senior author Chi Van Dang, MD, PhD, director Abramson Cancer Center, study body clock proteins associated with cancer cells. [More]
Envision inaugurates 10th Annual Conference, honors outstanding achievements in low vision rehabilitation

Envision inaugurates 10th Annual Conference, honors outstanding achievements in low vision rehabilitation

Envision, the Wichita, Kan.-based not-for-profit organization that supports those who are blind and visually impaired, officially opened its 10th Annual Conference at The Grand Hyatt in downtown Denver this morning with a session honoring outstanding commitment to improving the quality of life of those who are blind and visually impaired and keynote addresses from two individuals representing the great athletic accomplishments those with vision loss can achieve. [More]
UAB sleep medicine physician offers tips on insomnia

UAB sleep medicine physician offers tips on insomnia

Have trouble sleeping or waking up? You are not alone. The American Academy of Sleep Medicine estimates 30-35 percent of adults complain of insomnia. It is common in groups such as older adults, women, people under stress, and people with certain medical and mental health problems. [More]
Circadian factors, host gender could help understand microbiome and its effect on inflammatory bowel disease

Circadian factors, host gender could help understand microbiome and its effect on inflammatory bowel disease

By now, the old saw, "You are what you eat," has been well-used in describing the microbiome. However axiomatic that phrase may be, a new study has also found that who and when that consumption is done can affect microbiome make-up. [More]
Poor sleep linked to negative mood in women with bipolar disorder

Poor sleep linked to negative mood in women with bipolar disorder

Poor sleep is associated with negative mood in women with bipolar disorder, according to researchers at Penn State College of Medicine and University of Michigan Medical School. [More]
New York Blue Light Symposium highlights three measures to counter consequences of artificial illumination

New York Blue Light Symposium highlights three measures to counter consequences of artificial illumination

The New York Blue Light Symposium convened in New York from June 26-27, 2015. The event was sponsored by the International Blue Light Society (Senior Representative: Kazuo Tsubota), which was founded to research and release findings on the effects of blue light on the human body. [More]
NASA study explores how the human body responds to stress and fatigue in space

NASA study explores how the human body responds to stress and fatigue in space

Several Human Research Program investigations are being conducted aboard the International Space Station as part of NASA's One-Year Mission (1YM) to learn more about how the human body responds to stress in a long-duration, low-gravity environment. [More]
ITbM researchers find new molecules that change circadian rhythm in mammals

ITbM researchers find new molecules that change circadian rhythm in mammals

A team of chemists and biologists at the Institute of Transformative Bio-Molecules, Nagoya University have succeeded in finding new molecules that change the circadian rhythm in mammals by applying synthetic chemistry methods, which makes use of highly selective metal catalysts. [More]
New study aims to find the genetic causes of substance addiction

New study aims to find the genetic causes of substance addiction

A new study aims to find the genetic causes specific symptoms of substance addiction, which could lead to a more nuanced way of looking at substance abuse, and ways to treat it. [More]
Discovery of molecular reset button for internal body clock could help treat different disorders

Discovery of molecular reset button for internal body clock could help treat different disorders

An international team of scientists has discovered what amounts to a molecular reset button for our internal body clock. Their findings reveal a potential target to treat a range of disorders, from sleep disturbances to other behavioral, cognitive, and metabolic abnormalities, commonly associated with jet lag, shift work and exposure to light at night, as well as with neuropsychiatric conditions such as depression and autism. [More]
New Johns Hopkins mobile app educates care providers on improving sleep, overall health of patients

New Johns Hopkins mobile app educates care providers on improving sleep, overall health of patients

Experts from the Johns Hopkins Center for Sleep hope to help patients get a better night’s sleep by providing health care staff members with a basic educational tool on their smartphones. [More]
UConn Health cancer epidemiologist reveals effect of artificial light on health

UConn Health cancer epidemiologist reveals effect of artificial light on health

Modern life, with its preponderance of inadequate exposure to natural light during the day and overexposure to artificial light at night, is not conducive to the body's natural sleep/wake cycle. [More]
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