Melatonin News and Research

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Melatonin, also known chemically as N-acetyl-5-methoxytryptamine, is a naturally occurring compound found in animals, plants, and microbes. In animals, circulating levels of the hormone melatonin vary in a daily cycle, thereby allowing the entrainment of the circadian rhythms of several biological functions.

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

MT2 gene mutations may increase risk of diabetes

Researchers in Lille and Paris demonstrated that mutations in the melatonin receptor gene (melatonin or the "hormone of darkness" induces sleep) lead to an almost sevenfold increase in the risk of developing diabetes.

31 Jan 2012

Study finds link between body clock hormone melatonin, type 2 diabetes

A study published in Nature Genetics today has found new evidence for a link between the body clock hormone melatonin and type 2 diabetes. The study found that people who carry rare genetic mutations in the receptor for melatonin have a much higher risk of type 2 diabetes.

30 Jan 2012

Study reveals key role of melatonin receptor in sleep regulation

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."

14 Dec 2011

Study: Tart cherry juice improves overall sleep efficiency

Americans seeking a better night's sleep may need to look no further than tart cherry juice, according to a new study in the European Journal of Nutrition. An international team of researchers found that when adults had two daily glasses of tart cherry juice, they slept 39 minutes longer, on average, and had up to 6 percent increase in overall sleep efficiency (significantly less non-sleep time in bed), compared to when they drank a non-cherry, fruit cocktail.

9 Dec 2011

Drinking cherry juice improves quality and duration of sleep

Drinking cherry juice significantly improves both the quality and duration of sleep, according to new findings from Northumbria University.

2 Nov 2011

Circadian disruption and sleep restriction increase risk of MS in teens

Researchers from Sweden have uncovered an association between shift work and increased risk of multiple sclerosis. Those who engage in off-hour employment before the age of 20 may be at risk for MS due to a disruption in their circadian rhythm and sleep pattern. Findings of this novel study appear today in Annals of Neurology, a journal published by Wiley-Blackwell on behalf of the American Neurological Association and Child Neurology Society.

18 Oct 2011

Autism Speaks announces 10 new research grants

Autism Speaks, the world's largest autism science and advocacy organization, today announced the awarding of 10 new research grants totaling $1,782,934 in funding over the next three years. The selected studies will evaluate the effectiveness of a broad array of promising behavioral and medical treatments for core symptoms and associated medical issues in children, adolescents, and adults with autism spectrum disorders.

13 Oct 2011

RAZCER (Rapid Astrazeneca and CARO Evaluation of Radio-modifiers) awards announced - five Canadians win

Five leading Canadian radiation oncologists receive RAZCER Awards of $22,727 each for novel studies of radiation-drug interactions that have the potential to either protect normal tissues or sensitize tumours, and thus to enhance the effectiveness of radiation therapy for cancer patients. A selection committee of members of the Canadian Association of Radiation Oncology (CARO) selected the 2011 recipients from among a field of 12 applicants. Astrazeneca provides the funds for the RAZCER Award as an educational grant.

13 Oct 2011

Rotating shift pattern may not disrupt circadian rhythm or melatonin production

Recent research suggests that the modern day-day-night-night shift pattern for shift workers may not be as disruptive or as potentially carcinogenic as older, more extreme shift patterns.

28 Sep 2011

Exposure to 'white' LED light suppresses melatonin production

Exposure to the light of white LED bulbs, it turns out, suppresses melatonin 5 times more than exposure to the light of High Pressure Sodium bulbs that give off an orange-yellow light. "Just as there are regulations and standards for 'classic' pollutants, there should also be regulations and rules for the pollution stemming from artificial light at night," says Prof. Abraham Haim of the University of Haifa.

12 Sep 2011

Age-related lens yellowing linked to sleep disorders

A natural yellowing of the eye lens that absorbs blue light has been linked to sleep disorders in a group of test volunteers, according to a study in the September 1 issue of the journal Sleep. As this type of lens discoloration worsened with age, so did the risk of insomnia.

2 Sep 2011

New findings on human brain's photosensitivity

Valkee, inventor of the world's first bright-light headset, and scientists from the University of Oulu will present new findings on human brain's photosensitivity at the Scandinavian Physiology Society Annual Meeting 2011, August 12-14.

11 Aug 2011

Insufficient sleep can reduce benefit of hormones released during sleep

Nearly half of all Americans reported having difficulty sleeping. The Center for Disease Control and Prevention has reported that about 35% of people surveyed in 12 states said they slept less than 7 hours a night on average.

29 Jun 2011

New insights into 'sundowning' syndrome

New research provides the best evidence to date that the late-day anxiety and agitation sometimes seen in older institutionalized adults, especially those with dementia, has a biological basis in the brain.

28 Jun 2011

Tips to get better sleep

Your life is already tense — teens rebelling, house under renovation, work life in overload, bills piling up, elderly parents declining — yet the demands requiring your attention and time continue to grow, overflowing into sleep-time territory. Oftentimes, mass marketing's solutions to women's challenging lifestyles focus on quick fixes and more consumer goods.

18 May 2011

Melatonin can help fight obesity and risks associated with it

University of Granada researchers have proven that melatonin -a natural hormone produced by the body- helps in controlling weight gain -even without reducing the intake of food-, improves blood lipid profile -as it reduces triglicerids-, increases HDL cholesterol and reduces LDL cholesterol.

29 Apr 2011

New study sheds light on sleep problems in children with autism

The current prevalence of autism spectrum disorder is alarmingly high. Although there is no cure for autism, it is possible to manage and treat the comorbid medical conditions associated with autism. One of these conditions, sleeping disturbance, can be challenging to treat.

27 Apr 2011

Vanda to initiate tasimelteon Phase IIb/III clinical trial in Major Depressive Disorder

Vanda Pharmaceuticals Inc. today announced its plans to initiate a Phase IIb/III clinical trial of tasimelteon in patients with Major Depressive Disorder (MDD). The trial is expected to begin during the second half of 2011. Tasimelteon is currently being evaluated in Phase III clinical trials for the treatment of Non-24-Hour Sleep/Wake Disorder (N24HSWD) in blind individuals without light perception.

31 Mar 2011

Dementia & Alzheimer’s drug trial with sleep hormone melatonin

A new drug is in the making that could improve the quality of life for people with dementia. Glasgow-based medical research company CPS Research is conducting a clinical trial using a drug containing the sleep hormone melatonin, which it is hoped will reduce the symptoms associated with the illness.

28 Mar 2011