Sleep News and Research

Latest Sleep News and Research

C. elegans, free-living soil nematodes, pave way for better anesthetics

Ten genes that may make patients more or less susceptible to a common anesthetic agent have been identified by researchers using tiny worms and sophisticated technology that eliminates the activity of individual genes.

23 Oct 2005

Testosterone may improve women's sex lives after menopause

The addition of testosterone to hormone therapy in women after menopause enhances their sexual function. However, it may also reduce HDL cholesterol (the "good" cholesterol) in women, according to a systematic review of current evidence.

23 Oct 2005

Tourette syndrome linked to SLITRK1 gene

Tourette syndrome is a distressing condition which affects one in every 100 people.

17 Oct 2005

Astrocytes modulate adenosine - thought to be important in controlling wake-to-sleep transitions and epileptic seizures

Researchers at the University of Pennsylvania School of Medicine have demonstrated that star-shaped glial cells in the brain called astrocytes are directly involved in regulating communication between neurons.

10 Oct 2005

Babies should not be asleep in the same bed that their parents are sleeping in

Revised American Academy of Pediatrics' guidelines on preventing sudden infant death syndrome (SIDS) recommend putting babies to sleep in their own cribs instead of in their parents' beds.

10 Oct 2005

United States has a major weight problem and it will get worse

A large, community-based study -- considered the first study to assess the long-term risk of developing overweight and obesity in adults -- found that over 30 years, nine out of 10 men and seven out of 10 women were overweight or became overweight. In addition, more than one in three were obese or became obese.

4 Oct 2005

The biomedical and sociological effects of sleep restriction

In spring 2005 a large European research and training network was established to investigate the causes and implications of poor sleep from the medical as well as from the social point of view.

3 Oct 2005

First direct clues about how the brain alters the state of consciousness during sleep

In the human brain, cells talk to one another through the routine exchange of electrical signals. But when people fall into a deep sleep, the higher regions of the brain - regions that during waking hours are a bustling grid of neural dialogue - apparently lose their ability to communicate effectively, causing consciousness to fade.

3 Oct 2005

Music helps people with chronic obstructive pulmonary disease focus on their breathing

Before the music can begin, the harmonica teacher makes sure everyone is in position. "Sit up straight. Feet on the floor. Try to breathe from the belly," she says.

28 Sep 2005

Temperature can regulate the circadian clock in zebrafish

The biological clock controls the circadian rhythms of a wide range of physiological and behavioral processes, from fluctuating hormone levels to sleep - wake cycles and feeding patterns.

27 Sep 2005

New method to measure circadian cycles

Everyone knows morning people and late-night owls. 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.

27 Sep 2005

Bariatric surgery is a safe option for treating obese patients who have coronary artery disease

The findings are important because coronary artery disease patients can see a significant benefit with a successful procedure. The resulting weight loss is also followed by an improvement in blood pressure, cholesterol, blood sugar and sleep apnea, all factors linked to coronary artery disease.

12 Sep 2005

Key cellular switch that controls glucose production in liver cells

In many patients with type 2 diabetes, the liver acts like a sugar factory on overtime, churning out glucose throughout the day, even when blood sugar levels are high. Scientists at the Salk Institute for Biological Studies discovered a key cellular switch that controls glucose production in liver cells.

12 Sep 2005

Long hours equal to alcohol in impairing young doctors

Fatigued medical residents' performance on attention tests and on a driving simulator is comparable - or worse - than their performance after drinking three to four cocktails, according to research from Brown Medical School and University of Michigan.

6 Sep 2005

Children who use community health centers may be at a particularly high risk of being obese

Children who use community health centers may be at a particularly high risk of being obese, according to a new study. This association between obesity and the type of health delivery system used was present regardless of race, ethnicity or geographic characteristics.

6 Sep 2005

Treating nighttime heartburn improves sleep and boosts quality of life

The first major multi-center, randomized, double-blind, placebo-controlled trial addressing therapy for gastroesophageal reflux disease (GERD) related sleep disorders is published in the September issue of The American Journal of Gastroenterology.

1 Sep 2005

Vagus nerve stimulation (VNS) therapy for treatment-resistant depression proves effective for some patients

Vagus nerve stimulation (VNS) therapy, a treatment recently approved by the Food and Drug Administration for treatment-resistant depression, produced a positive response in more than 25 percent of patients in a national, yearlong study led by UT Southwestern Medical Center psychiatrists

31 Aug 2005

Inexpensive method to assess the stability and quality of sleep

Using information hidden in the beat-to-beat changes of the heart's electrical signals, researchers at Beth Israel Deaconess Medical Center (BIDMC) have developed an inexpensive method to assess the stability and quality of sleep, which could be used to help understand the mechanisms of sleep control and diagnose sleep disorders, as well as to test the efficacy of sleep aids and other medications.

29 Aug 2005

Neurotransmitter orexin influences reward processing - associated with pleasure and reward pathways in the brain

Researchers at the University of Pennsylvania School of Medicine have discovered that the recently identified neurotransmitter orexin (also known as hypocretin) influences reward processing by activating neurons in the lateral hypothalamus region of the brain.

28 Aug 2005

Acupuncture relieves symptoms of fibromyalgia

Fibromyalgia patients treated with six sessions of acupuncture experienced significant symptomatic improvement compared to a group given simulated acupuncture sessions according to a new Mayo Clinic study.

25 Aug 2005