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Circadian Response Current Events | Circadian Response News
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Renal colic shows a circadian pattern
Renal colic (spasms of pain in the back usually caused by kidney stones) occurs in a circadian pattern, finds a study in this week’s BMJ. view more (2002-03-27)
Temperature sensing by the circadian clock
In the September 1 issue of G&D, Dr. Michael Brunner and colleagues have uncovered the molecular mechanism whereby temperature affects circadian patterns in the fungus Neurospora. view more (2005-08-17)
A novel method to measure circadian cycles
The variation in individual circadian rhythms is an anecdotal as well as experimentally verified fact. But, until now, to systematically study circadian differences (and thereby hope to rout out the underlying genetic causes), scientists have had to rely on prolonged behavioural observation. view more (2005-09-27)
Appetite, consumption controlled by clockwork genes at cross-purposes in flies
One of the pioneers in research on sleep:wake circadian genes, Amita Sehgal, Ph.D., has discovered that fruit flies' appetite and consumption are controlled by two rival sets of clocks, one in neurons and the other in the fly fat body, which is analogous to the liver. view more (2009-12-07)
Flowers to Order
How do growers ensure their Poinsettias are ready for Christmas or their roses for Valentine’s Day? Professor Andrew Millar (Warwick University) will present current work on Thursday 3 April (in session P9.9) which could help breeders to schedule their crops more accurately. Like most organisms, plants possess a ‘clock’ which... view more... (2003-03-31)
New fruit fly protein illuminates circadian response to light
Researchers at the University of Pennsylvania School of Medicine have identified a new protein required for the circadian response to light in fruit flies. view more (2006-06-30)
Researchers propose new molecule to explain circadian clock
The internal clock in living beings that regulates sleeping and waking patterns -- usually called the circadian clock -- has often befuddled scientists due to its mysterious time delays. Molecular interactions that regulate the circadian clock happen within milliseconds, yet the body clock resets about every 24 hours. view more (2007-08-28)
Circadian surprise: A heat sensor for body-clock synchronization
New research on the fruit-fly brain points to a possible mechanism by which temperature influences the body clock, according to scientists from Queen Mary, University of London. view more (2009-10-30)
Study led by Scripps Research scientist reveals little-known cell networks vital to circadian rhythm
Circadian rhythm is the basic 24-hour cycle that involves various behaviors, including sleeping and eating, in all living organisms. In mammals, the circadian clock is organized hierarchically in a series of multiple oscillators. view more (2007-05-04)
Cicardian system suffers and protects from prenatal cocaine exposure
Researchers from Boston University School of Medicine (BUSM) have shown that prenatal cocaine exposure in zebrafish (which share the majority of the same genes with humans) can alter neuronal development and acutely dysregulate the expression of circadian genes and those affecting melatonin signaling, growth and neurotransmission. view more (2007-07-11)
Faulty body clock may make kids bipolar
Malfunctioning circadian clock genes may be responsible for bipolar disorder in children. Researchers writing in the open access journal BMC Psychiatry found four versions of the regulatory gene RORB that were associated with pediatric bipolar disorder. view more (2009-11-12)
Actigraphy is a useful way to assess and manage sleep disorders
Actigraphy, the use of a portable device that records movement over extended periods of time, and has been used extensively in the study of sleep and circadian rhythms, provides an acceptably accurate estimate of sleep patterns in normal, healthy adult populations and in-patients suspected of certain sleep disorders. view more (2007-04-02)
Texas A&M researchers find new mechanism for circadian rhythm
Molecules that may hold the key to new ways to fight cancer and other diseases have been found to play an important role in regulating circadian rhythm, says Liheng Shi, a researcher in Texas A&M's Department of Veterinary Integrative Biosciences. view more (2009-10-21)
Plants' internal clock can improve climate-change models
The ability of plants to tell the time, a mechanism common to all living beings, enables them to survive, grow and reproduce. view more (2009-07-06)
Seasonal weight changes linked to metabolic syndrome
Seasonal changes in weight increase the risk for metabolic syndrome, a group of scientists from National Public Health Institute, Helsinki, Finland, reports in a study published in the January 23 issue of the online, open-access journal PLoS ONE. view more (2008-01-23)
When it comes to sleep research, fruit flies and people make unlikely bedfellows
You may never hear fruit flies snore, but rest assured that when you're asleep they are too. According to research published in the January 2009 issue of the journal GENETICS, scientists from the University of Missouri-Kansas City have shown that the circadian rhythms (sleep/wake cycles) of fruit flies and vertebrates are regulated by some of the... view more... (2009-01-13)
Mouse vision has a rhythm all its own
In the eyes of mammals, visual information is processed on a daily schedule set within the eyes themselves-not one dictated by the brain, according to a new report in the August 24 issue of the journal Cell, a publication of Cell Press. view more (2007-08-24)
New Approach Sheds Light on Ways Circadian Disruption Affects Human Health
Growing evidence indicates that exposure to irregular patterns of light and darkness can cause the human circadian system to fall out of synchrony with the 24-hour solar day, negatively affecting human health - but scientists have been unable to effectively study the relationship between circadian disruptions and human maladies. view more (2008-07-17)
Gene controlling circadian rhythms linked to drug addiction, UT Southwestern researchers find
The gene that regulates the body's main biological clocks also may play a pivotal role in drug addiction, researchers at UT Southwestern Medical Center have found. view more (2005-06-14)
Hebrew University, US scientists find clue to mystery of biological clock
How does our biological system know that it is supposed to operate on a 24-hour cycle? Scientists at the Hebrew University of Jerusalem have discovered that a tiny molecule holds the clue to the mystery. view more (2009-11-30)
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