Circadian Rhythm News and Research

Latest Circadian Rhythm News and Research

Researchers zero in on sleep gene

Zeroing in on the core cellular mechanisms of sleep, researchers at University of Wisconsin Medical School have identified for the first time a single gene mutation that has a powerful effect on the amount of time fruit flies sleep.

27 Apr 2005

Sydney Research Institute raises concerns about sleepy doctors

Professor Ron Grunstein, Head of the Sleep and Circadian Research Group and Dr Naomi Rogers, chronobiologist both of the Woolcock Institute of Medical Research, have questioned the ability of doctors in Australia's hospitals to do their job properly given the long hours many are expected to work.

27 Apr 2005

Brain system that controls the sleep/wake cycle might also play a role in regulating appetite and metabolism

A new mouse study suggests that a brain system that controls the sleep/wake cycle might also play a role in regulating appetite and metabolism. Mice with a mutation in a gene called "Clock," which helps drive circadian rhythm, ate significantly more and gained more weight.

22 Apr 2005

Body's 24-hour internal clock linked to obesity and diabetes

Obesity and diabetes in both adults and children are rising at alarming rates and a wide range of culprits -- super-sized food portions, lack of exercise due to television, computers, suburban sprawl and loss of gym classes, high-fat and fast foods, sugar-laden drinks and psychological trauma -- have been blamed.

21 Apr 2005

Gene could be cause of early bird disorder

A sleep disorder which makes people nod off early and wake fully alert before dawn is now thought to be caused by a mutant gene.

4 Apr 2005

A circadian rhythm gene discovered

A few rare people who consistently nod off early, then wake up wide-eyed much before dawn, can blame a newly-found mutant gene for their sleep troubles, Howard Hughes Medical Institute researchers announced today.

30 Mar 2005

New directions toward the treatment of bipolar disorder

While lithium treatment has proven to be a godsend for many of the two million Americans with bipolar disorder, it is not without its downside. People on the drug may develop hypothyroidism, tremors, cognitive impairment, and excessive thirst and urination and gain weight.

23 Mar 2005

Vasoactive intestinal polypeptide needed by the brain's biological clock to coordinate daily rhythms

A biologist at Washington University in St. Louis is giving the VIP treatment to laboratory mice in hopes of unraveling more clues about our biological clock.

7 Mar 2005

Melanopsin plays a key role in the inner workings of the eye

A Brown University team has found that a protein called melanopsin plays a key role in the inner workings of mysterious, spidery cells in the eye called intrinsically photosensitive retinal ganglion cells, or ipRGCs.

26 Jan 2005

Lack of sleep could make you fat

Lack of sleep could make you fat. In an editorial published in the Jan. 10 issue of the Archives of Internal Medicine, two Northwestern University researchers stress the need to better understand the growing epidemic of obesity in the United States by studying how loss of sleep alters the complex metabolic pathways that control appetite, food intake and energy expenditure.

10 Jan 2005

Biological clock affects the patterns of heart-rate control in healthy individuals

In a newly reported, first-ever finding, physicists from Boston University and physiologists from Boston’s Brigham and Women’s Hospital (BWH) have found that the body’s biological clock affects the patterns of heart-rate control in healthy individuals independent of sleep/wake cycle or other behavior influences.

21 Dec 2004

Effective management of insomnia begins with recognition and adequate assessment

A seminar in this week’s issue of THE LANCET outlines the common but poorly understood condition of insomnia, concluding that awareness and assessment of insomnia by family doctors is a priority.

29 Nov 2004

Discovery of gene mutation in fruit flies that alters sensitivity to crack cocaine

Researchers at the University of California, San Francisco (UCSF) and New York University have discovered a gene mutation in fruit flies that alters sensitivity to crack cocaine and also regulates their internal body clock.

23 Nov 2004

Discovery of internal molecular clock that governs the metabolism of sugars and fats within the body

Researchers at the University of Pennsylvania School of Medicine have discovered that components of the internal molecular clock of mammals have an important role in governing the metabolism of sugars and fats within the body.

4 Nov 2004

First study to measure the influence of night-shift work on hormone levels that may affect breast-cancer risk

Three years ago, investigators at Fred Hutchinson Cancer Research Center made headlines nationwide when they published the results of a population-based study that suggested women who work the graveyard shift have an increased risk of breast cancer as opposed to women who work the day shift.

26 Oct 2004

Chemical pathways of serotonin in the nervous system pave way for future pharmaceutical treatments for depression

From mollusks to mammals, newly discovered chemical pathways of serotonin in the nervous system are paving a path toward future pharmaceutical treatments for depression and other disorders.

10 Sep 2004

Experts consider evidence of link between the rise in childhood leukaemia and increased light at night

International experts will today consider the evidence for a link between the rise in childhood leukaemia and increased light at night at an international scientific conference in London.

8 Sep 2004

Conference – Childhood leukaemia: incidence, causal mechanisms and prevention

The advances in treating childhood leukaemia over the last forty years have been one of cancer’s outstanding success stories – but the fall in mortality has diverted attention from a rise in incidence, a London conference will hear today (Monday 6 September).

5 Sep 2004

Circadian rhythm research may lead to greater understanding of jet lag and human diseases

Our biological clock, or circadian rhythm, is upset by travelling across time zones, but very soon the body adjusts to the new day/night cycle.

30 Aug 2004

Enzyme activation key to body clock

Feel like time is repeating itself and won’t move on? It could be your internal clock is backpedaling because your PKG-II is out of whack.

20 Aug 2004

Circadian Rhythm News and Research

Latest Circadian Rhythm News and Research

Researchers zero in on sleep gene

Sydney Research Institute raises concerns about sleepy doctors

Brain system that controls the sleep/wake cycle might also play a role in regulating appetite and metabolism

Body's 24-hour internal clock linked to obesity and diabetes

Gene could be cause of early bird disorder

A circadian rhythm gene discovered

New directions toward the treatment of bipolar disorder

Vasoactive intestinal polypeptide needed by the brain's biological clock to coordinate daily rhythms

Melanopsin plays a key role in the inner workings of the eye

Lack of sleep could make you fat

Biological clock affects the patterns of heart-rate control in healthy individuals

Effective management of insomnia begins with recognition and adequate assessment

Discovery of gene mutation in fruit flies that alters sensitivity to crack cocaine

Discovery of internal molecular clock that governs the metabolism of sugars and fats within the body

First study to measure the influence of night-shift work on hormone levels that may affect breast-cancer risk

Chemical pathways of serotonin in the nervous system pave way for future pharmaceutical treatments for depression

Experts consider evidence of link between the rise in childhood leukaemia and increased light at night

Conference – Childhood leukaemia: incidence, causal mechanisms and prevention

Circadian rhythm research may lead to greater understanding of jet lag and human diseases

Enzyme activation key to body clock

Achieving and maintaining ISO/IEC 27001 and BS 10012 certifications

Expanding research and clinical options for children with cancer

Examining how pain could play a direct protective role in the gut

Circadian Rhythm News and Research

Latest Circadian Rhythm News and Research

Achieving and maintaining ISO/IEC 27001 and BS 10012 certifications

Expanding research and clinical options for children with cancer

Examining how pain could play a direct protective role in the gut

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