News tagged with circadian
Winter blues see the light
(Medical Xpress) -- It happens every year — the shortened daylight hours of the winter months always seem to affect one’s mood. People of all ages can develop seasonal affective disorder (SAD), a type of clinical ...
Medicine & Health / Psychology & Psychiatry
Feb 07, 2012 |
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Examining evolution from a cellular perspective
The evolutionary processes of unicellular and multicellular organisms are continually under debate. John Torday, Ph.D., a lead investigator at Los Angeles Biomedical Research Institute (LA BioMed), has recently co-authored ...
Jan 25, 2012 |
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Disruption of biological clocks causes neurodegeneration, early death
New research at Oregon State University provides evidence for the first time that disruption of circadian rhythms – the biological "clocks" found in many animals – can clearly cause accelerated neurodegeneration, ...
Medicine & Health / Neuroscience
Jan 10, 2012 |
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How exposure to irregular light affects plant circadian rhythms
Scientists know that plants can actually "sense" day length, and "schedule" their growth to coincide with specific environmental conditions. These natural events are based on the circadian clock, a 24-hour ...
Dec 14, 2011 |
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Tireless research reveals secrets of the 'sleep hormone'
A team from the Research Institute of the McGill University Health Centre (RI-MUHC) and McGill University has made a major breakthrough by unraveling the inner workings of melatonin, also known as the "sleep hormone." The ...
Medicine & Health / Neuroscience
Dec 13, 2011 |
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Researchers identify structure of circadian clock protein
(PhysOrg.com) -- Feeling jet-lagged? You may need your internal clock reset. New Cornell research has taken a major step toward treating jet lag and other more serious syndromes by advancing our understanding ...
Nov 15, 2011 |
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Research team shows skin stem cells run by circadian clock
(PhysOrg.com) -- Most everyone has heard of the circadian rhythm or the internal clock that people have that tells them when to do things, such as go to sleep. In fact, researchers have actually located where this “clock” ...
Nov 10, 2011 |
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Differences in jet lag severity could be rooted in how circadian clock sets itself
It's no secret that long-distance, west-to-east air travel – Seattle to Paris, for example – can raise havoc with a person's sleep and waking patterns, and that the effects are substantially less pronounced when ...
Oct 13, 2011 |
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Circadian clock may impact organ transplant success
Health care providers assess blood and tissue type as well as organ size and health to enhance transplant success. New research indicates that checklist might also need to include the circadian clock.
Oct 04, 2011 |
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Failure of brain's clock could play role in causing neuropsychiatric disorders
(Medical Xpress) -- Neuropsychiatric disorders are the second largest cause of morbidity and premature mortality worldwide. The scientific community has widely accepted that people who battle neuropsychiatric disorders such ...
Medicine & Health / Psychology & Psychiatry
Sep 21, 2011 |
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Circadian cycle even more important to life than previously suspected: study
Researchers at USC were surprised recently to discover just how much the rising and setting of the sun drives life on Earth – even in unexpected places.
Sep 12, 2011 |
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Body clock found to regulate platelet function
Researchers at Brigham and Women's Hospital (BWH) have demonstrated that the circadian system, the body's internal clock, regulates human platelet function and causes a peak in platelet activation corresponding to the known ...
Medicine & Health / Cardiology
Sep 09, 2011 |
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Circadian clocks in a blind fish
Do animals that have evolved for millions of years underground, completely isolated from the day-night cycle, still "know" what time it is? Does a normal circadian clock persist during evolution under constant darkness? A ...
Sep 06, 2011 |
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Glowing, blinking bacteria reveal how cells synchronize biological clocks
Biologists have long known that organisms from bacteria to humans use the 24 hour cycle of light and darkness to set their biological clocks. But exactly how these clocks are synchronized at the molecular level to perform ...
Sep 01, 2011 |
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Manipulating plants' circadian clock may make all-season crops possible
Yale University researchers have identified a key genetic gear that keeps the circadian clock of plants ticking, a finding that could have broad implications for global agriculture.
Sep 01, 2011 |
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