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Current Melatonin News and Events, Melatonin News Articles.
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Study shows melatonin supplements may make standing a hazard for the cardiovascular-challenged
For insomniacs and jet-lagged travelers, melatonin supplements may enable a good night's sleep. However, a study by a Penn State Milton S. Hershey Medical Center researcher suggests that melatonin supplements may make symptoms worse for the half a million people - many of them women and the elderly - with orthostatic intolerance. (2003-09-15)

Jefferson and Brigham and Women's researchers find blue light important for setting biological clock
Researchers from Brigham and Women's Hospital (BWH) in Boston and Jefferson Medical College have found that the body's natural biological clock is more sensitive to shorter wavelength blue light than it is to the longer wavelength green light, which is needed to see. The discovery proves what scientists have suspected over the last decade: a second, non-visual photoreceptor system drives the body's internal clock, which sets sleep patterns and other physiological and behavioral functions. (2003-09-10)

Asthma patients cautioned about melatonin
People with asthma should consider limiting the use of melatonin as a sleep aid, according to researchers from the National Jewish Medical and Research Center. Pulmonologist Rand Sutherland, M.D., M.P.H., and his colleagues report in the September issue of the Journal of Allergy and Clinical Immunology that higher levels of endogenous melatonin were associated with an overnight loss of lung function in asthma patients. Widely available supplements can raise melatonin blood levels 10 to 100 times higher than normal peak levels. (2003-09-08)

Mayo Clinic study shows melatonin helps alleviate violent sleep disorder symptoms
A Mayo Clinic study shows that melatonin successfully alleviates many patients' symptoms of REM-sleep behavior disorder (RBD), a violent sleep condition that manifests during rapid eye movement (REM) sleep, a stage of deep sleep in which most dreaming occurs. (2003-09-08)

In men chronically exposed to magnetic fields, no disruptions of melatonin exists
A new study offers direction for those examining the illnesses of those working or living near large electrical facilities. (2003-07-29)

Biological clock more influenced by temperature than light
Getting over jet lag may be as simple as changing the temperature --your brain temperature, that is. That's a theory proposed by Erik Herzog, Ph.D. assistant professor of biology in Arts & Sciences at Washington University in St. Louis. Herzog has found that the biological clocks of rats and mice respond directly to temperature changes. (2003-07-14)

Researchers search for cause of delayed sleep phase syndrome
Two new research studies to determine the cause of Delayed Sleep Phase Syndrome (DSPS), a serious sleep disorder thought to affect between 500,000 and several million Americans, are being undertaken by researchers at Rush-Presbyterian-St. Luke's Medical Center. (2003-07-11)

Is there an unexpected price for late night high tech excitement?
The bright computer display screen contributes to metaltonin suppression, which has been blamed for the tendency to insomnia in the elderly. (2003-06-17)

Use of medication to treat pediatric insomnia is common, study finds
Although guidelines do not exist for the use of medication to treat pediatric sleep disorders, about 75 percent of pediatricians surveyed had recommended some type of medication for that purpose within the previous six months. Pediatric sleep disturbances are among the most common and challenging complaints, and a set of clinical experience-based guidelines needs to be developed, according to a study in the May Pediatrics. (2003-05-05)

Jefferson neuroscientists probing the power of light to influence human health
Neuroscientist George Brainard contends that light can both heal and harm. He should know. He has spent much of the past two decades trying to understand how the brain interprets, reacts to and uses light independently of the visual system. He and others at the Farber Institute for Neurosciences at Thomas Jefferson University in Philadelphia, for example, have clarified how the human eye uses light to regulate melatonin production - and the body's biological clock. (2003-02-14)

Use public funds to test jet lag drug, say researchers
The hormone melatonin has long been used to prevent and treat jet lag, but in many countries it cannot be sold because it is not licensed. Researchers in this week's BMJ argue that if use of the drug is in the public interest, then public funds should be used to get it adequately tested to be licensed. (2003-02-06)

Massage helps infants, mothers get good night's sleep together
Studies have associated massage therapy with a host of benefits, including enhanced mother-infant interaction for depressed mothers, infant relaxation and decreased crying for colicky infants. Now a small study suggests it may help newborns develop a more regular sleep cycle as well -- which may mean more hours of uninterrupted sleep for mothers. (2002-12-13)

The Lancet Oncology (TLO) June 2002
This review highlights how death from cancer in central-eastern Europe is still rising, despite the fact that cancer deaths for the whole of Europe have been falling over the past decade. (2002-06-01)

Exposure to light and sleep pattern alteration
Each person's circadian rhythm, or biological clock, influences when we are tired, hungry, more or less sensitive to drugs and other stimuli, and even cues the secretion of hormones throughout each 24-hour period. In a study presented at the annual meeting of the American Academy of Neurology, researchers demonstrate the degree to which light exposure, as well as alterations in sleep patterns, can affect the timing of the circadian clock. (2002-04-18)

The body's production of melatonin may be the reason why the elderly can't get a good night's sleep
Changes in the rhythmic action of the body producing Melatonin may be why the elderly don't sleep as well according to study published in the February 2002 edition of the American Journal of Physiology--Endocrinology and Metabolism. (2002-02-12)

'Night eating syndrome' may be related to the performance of the body -- not the mind
Study results published in the February 2002 edition of the American Journal of Physiology -- Endocrinology and Metabolism indicate that the midnight raid on the refrigerator may not be just appetite. (2002-02-12)

Internal clock not ready for Mars time
The human internal clock fails to adapt to non-24-hour days and that takes its toll on astronauts, international travelers and shift workers. Shuttle missions typically operate on 23.5-hour days, and astronauts exploring Mars would experience a 24.65-hour day. (2001-12-21)

Immune system in mice affected by changes in daylight
Researchers here have discovered how seasonal changes in the length of the day affect the immune system in mice. The results might have implications for people who use melatonin supplements for health reasons. The Ohio State University study found that changes in the length of daylight in autumn trigger enhancements of the mice's immune system in preparation for the challenges of winter. (2001-10-25)

Light at night and working the graveyard shift linked to increased risk of breast cancer
Women who work the graveyard shift may face an up to 60 percent increased risk of breast cancer, according to a Fred Hutchinson Cancer Research Center study (2001-10-16)

Health in a 24-hour society
The increasing demand of many societies for people to work outside office hours could have negative influences on health, legal, and economic outcomes, suggest authors of a review article in this week's issue of THE LANCET. (2001-09-20)

Jefferson neuroscientists uncover novel receptor in the human eye to control body's biological clock
Neuroscientists have clarified how the human eye uses light to regulate melatonin production and the body's biological clock. They have discovered what appears to be a fifth human (2001-08-09)

Exercise effects dependent on time of day
Peak athletic performance may be related to time of day, suggests a University of Chicago study being presented to the Endocrine Society's annual meeting. The study shows that the response of the systems regulating energy metabolism and some hormones differs according to when in the day exercise is performed. (2001-06-19)

Individualized timing key to success of light therapy for winter depression
Synchronizing light therapy with a person's biological clock doubles its effectiveness as a treatment for winter depression, Columbia University researchers have demonstrated. (2001-01-13)

Memory, forgetfulness help hamsters time breeding
A study shows that hamsters time their breeding by (2000-05-04)

Link between suicide and exposure to magnetic fields
Prolonged exposure to low frequency electromagnetic fields may increase the risk of suicide, suggests a study of US electricians in Ocupational and Environmental Medicine. Electromagnetic fields may reduce the production of melatonin, a hormone that maintains daily circadian rhythms, including the sleep and wake cycle. Reduced levels of melatonin are associated with depression. (2000-03-14)

Largest study finds evidence of association between EMFs and exposed worker suicide
A large and detailed study of the possible link between exposure to low frequency electromagnetic fields (EMFs) and suicide among electric utility workers has uncovered what appears to be a distinct association. (2000-03-14)

High rates of skin cancer among airline pilots
Rates of skin cancer among airline pilots are up to 10 times higher than expected, shows research published in Occupational and Environmental Medicine. Pilots regularly flying over five time zones seem to be at particular risk, the research shows, suggesting that disturbances in circadian rhythms may be implicated. (2000-02-16)

Study casts doubt that melatonin goes down as age goes up: Older buyers take note
A new study contradicts the popular notion that melatonin levels in older people fall with age. For most healthy people, concentrations of melatonin in plasma probably do not decline with aging. (1999-11-04)

Jefferson researchers show melatonin's potential benefits in preventing Parkinson's damage
Melatonin could be a key to someday understanding how to treat Parkinson's disease. Scientists at Jefferson Medical College have shown in the laboratory and in test animals that melatonin is effective in preventing a particular type of brain cell damage similar to that found in Parkinson's. (1999-10-23)

UB scientists discover role of melatonin in bone formation
University at Buffalo researchers have shown for the first time that melatonin, a hormone produced naturally by the pineal gland and used widely as a supplement to diminish jet lag and improve sleep patterns, may play an important role in promoting bone growth. (1999-09-20)

Early to rise: Research offers clues to older people's sleep habits
A new study indicates that older healthy individuals tend to arise earlier in the morning, but that both older and younger healthy people share the same circadian period of a little more than 24 hours, countering the belief that the circadian clock has a 25-hour period that shortens in duration with age. (1999-06-25)

Melatonin: More Than You Bargain For?
People who take the popular supplement melatonin hoping for antioxidant or sleep benefits may be getting more than they bargain for, according to Louisiana State University chemists. Their newly released findings show melatonin reacts with chemicals in the body to form compounds that could alter behavior. (1999-05-25)

New Way To Make Astronauts Sleep
Astronauts seem to sleep best when covered in electrodes, according to the latest research into orbital insomnia. A researcher in Boston found that covering astronauts in monitoring equipment made them sleep better than when taking NASA's usual remedy for insomnia, the hormone melatonin. (1999-04-21)

Melatonin Shapes Brain Structure In Songbirds
Scientists have found that the hormone melatonin is a critical regulator of brain plasticity in birds, controlling mating-related song bursts and fine-tuning the profound effects of testosterone. Now the question is: Does it have a similar effect on humans? (1999-04-14)

Researchers Determine Three Dimensional Structure Of Melatonin Producing Enzyme
Researchers from two NIH institutes have determined the three-dimensional structure of an enzyme that produces melatonin--a key hormone that regulates the body's internal clock. The accomplishment may lead to the eventual design of drugs to fight jet lag, to help shift workers adjust to variable schedules, and to combat depression. (1999-02-02)

Internal Clocks Keep Everything From Humans To Algae Ticking
Vanderbilt University researcers studying biological clocks experiment with different light cycles. (1998-03-02)

Melatonin May Ease Insomnia Associated With Depression In Lag Period Before Antidepressants Take Effect
Northwestern University Medical School researchers have launched a study to determine the effectiveness of melatonin to relieve insomnia in the initial weeks of Prozac¨ therapy. They believe the hormone melatonin may not only improve sleep but also diminish depression that has been exacerbated by sleep deprivation (1997-03-13)

Northwestern Neuroscientists Report Findings In Studies on Alzheimer's Disease
Research findings on Alzheimer's disease, stress and depression, alcoholism and addiction will be reported by scientists from Northwestern University at the Neuroscience Society annual conference in Washington, DC from Nov. 16-21. Other presentations by Northwestern researchers will cover: the cerebrocortex, genes and biorhythms, as well as reconstruction of neurocircuitry and motor, cellular and systems neuroscience (1996-11-16)

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