PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

Study is first to find significant link between sleepiness and vitamin D

New research suggests that race plays an important role in the complex relationship between daytime sleepiness and vitamin D levels

2012-12-15
(Press-News.org) DARIEN, IL – A new study suggests that there is a significant correlation between excessive daytime sleepiness and vitamin D, and race plays an important factor.

Results show that in patients with normal vitamin D levels, progressively higher levels of daytime sleepiness were correlated inversely with progressively lower levels of vitamin D. Among patients with vitamin D deficiency, sleepiness and vitamin D levels were associated only among black patients. Surprisingly, this correlation was observed in a direct relationship, with higher vitamin D levels associated with a higher level of sleepiness among black patients.

"While we found a significant correlation between vitamin D and sleepiness, the relationship appears to be more complex than we had originally thought," said David McCarty, MD, the study's principal investigator. "It's important to now do a follow-up study and look deeper into this correlation."

The study, appearing online in the Dec. 15 issue of the Journal of Clinical Sleep Medicine, involved a consecutive series of 81 sleep clinic patients who complained of sleep problems and nonspecific pain. All patients eventually were diagnosed with a sleep disorder, which in the majority of cases was obstructive sleep apnea. Vitamin D level was measured by blood sampling, and sleepiness was determined using the Epworth Sleepiness Scale.

According to the authors, this is the first study to demonstrate a significant relationship between sleepiness and vitamin D. They noted that it is logical for race to affect this relationship because increased skin pigmentation is an established risk factor for low vitamin D.

The study was not designed to examine causality. However, the authors' previous and current research suggests that suboptimal levels of vitamin D may cause or contribute to excessive daytime sleepiness, either directly or by means of chronic pain.

INFORMATION:

To request a copy of the study, "Vitamin D, Race, and Excessive Daytime Sleepiness", or to arrange an interview with an AASM spokesperson, please contact Communications Coordinator Lynn Celmer at 630-737-9700, ext. 9364, or lcelmer@aasmnet.org.

The peer-reviewed Journal of Clinical Sleep Medicine is published bimonthly and is the official publication of the American Academy of Sleep Medicine, a professional membership society that is the leader in setting standards and promoting excellence in sleep medicine health care, education and research (www.aasmnet.org).

The American Academy of Sleep Medicine considers sleep disorders an illness that has reached epidemic proportions. Board-certified sleep medicine physicians in an AASM-accredited sleep center provide effective treatment. AASM encourages patients to talk to their doctors about sleep problems or visit www.sleepeducation.com for a searchable directory of sleep centers.

END



ELSE PRESS RELEASES FROM THIS DATE:

Low adiponcetin associated with increased pancreatic cancer risk

2012-12-15
Low prediagnostic levels of circulating adiponectin were associated with an increased risk of pancreatic cancer, according to a study published December 14 in the Journal of the National Cancer Institute. Pancreatic cancer is the fourth leading cause of cancer death in the U.S., but its etiology remains unclear. Adiponectin, a hormone secreted from fat cells, has insulin-sensitizing and anti-inflammatory properties. Low adiponectin plasma levels are associated with the insulin resistance that manifests in obesity and diabetes mellitus, both of which are risk factors ...

McLean study finds long-term anabolic-androgenic steroid use may impact visuospatial memory

2012-12-15
Belmont, MA—The long-term use of anabolic-androgenic steroids (AAS) may severely impact the user's ability to accurately recall the shapes and spatial relationships of objects, according to a recent study conducted by McLean Hospital and Harvard Medical School investigators. In the study, published today online in the journal Drug and Alcohol Dependence, McLean Hospital Research Psychiatrist Harrison Pope, MD, used a variety of tests to determine whether AAS users developed cognitive defects due to their admitted history of abuse. "Our work clearly shows that while ...

CU-Boulder team develops swarm of pingpong-ball-sized robots

2012-12-15
University of Colorado Boulder Assistant Professor Nikolaus Correll likes to think in multiples. If one robot can accomplish a singular task, think how much more could be accomplished if you had hundreds of them. Correll and his computer science research team, including research associate Dustin Reishus and professional research assistant Nick Farrow, have developed a basic robotic building block, which he hopes to reproduce in large quantities to develop increasingly complex systems. Recently the team created a swarm of 20 robots, each the size of a pingpong ball, ...

Research explores how children reason, think about others

2012-12-15
Two new studies published in Psychological Science, a journal of the Association for Psychological Science, explore the development of reasoning and perspective-taking in children. How to Pass the False-Belief Task Before Your Fourth Birthday As social creatures, humans must constantly monitor each other's intentions, beliefs, desires, and other mental states. A particularly important social skill is the ability to take another person's perspective and understand what the person knows, even when that knowledge may ultimately be false. Past research has shown that before ...

Carriers of gene variant appear less likely to develop heart disease

2012-12-15
BOSTON (December 14, 2012) –Scientists at the Jean Mayer USDA Human Nutrition Research Center on Aging (HNRCA) at Tufts University have discovered a new gene mechanism that appears to regulate triglyceride levels. This pathway may protect carriers of a gene variant against cardiovascular disease, especially among those with greater intakes of polyunsaturated fat (PUFA). The findings, published online this week in the American Journal of Human Genetics, contribute to research efforts to develop gene-specific diets that could potentially improve general health and complement ...

Improved techniques may help recovery and prevent incidents of missing drivers with dementia

2012-12-15
Tampa, FL (Dec. 14, 2012)— A new study focusing on how people with dementia become lost while driving, how missing drivers are found, and the role of public notification systems like Silver Alert in these discoveries suggests techniques that may help recover drivers with dementia and prevent potentially harmful incidents. The study was led by principal investigator Meredeth A. Rowe, RN, PhD, FGSA, FAAN, professor and endowed chair at the University of South Florida College of Nursing. The findings were published online last month in the Journal of the American Geriatrics ...

Video-based test to study language development in toddlers and children with autism

Video-based test to study language development in toddlers and children with autism
2012-12-15
Parents often wonder how much of the world their young children really understand. Though typically developing children are not able to speak or point to objects on command until they are between eighteen months and two years old, they do provide clues that they understand language as early as the age of one. These clues provide a point of measurement for psychologists interested in language comprehension of toddlers and young children with autism, as demonstrated in a new video-article published in JoVE (Journal of Visualized Experiments). In the assessment, psychologists ...

UCSB physicists make strides in understanding quantum entanglement

UCSB physicists make strides in understanding quantum entanglement
2012-12-15
(Santa Barbara, Calif.) –– While some theoretical physicists make predictions about astrophysics and the behavior of stars and galaxies, others work in the realm of the very small, which includes quantum physics. Such is the case at UC Santa Barbara, where theoretical physicists at the Kavli Institute for Theoretical Physics (KITP) cover the range of questions in physics. Recently, theoretical physicists at KITP have made important strides in studying a concept in quantum physics called quantum entanglement, in which electron spins are entangled with each other. Using ...

Raising the blockade

2012-12-15
At crucial points in the metabolism of all organisms, a protein with the unwieldy name of Translation Elongation Factor P (EF-P, for short) takes center stage. What it actually does during protein synthesis has only now been elucidated – by researchers at Ludwig-Maximilians-Universität in Munich. The research group led by Kirsten Jung, Professor of Microbiology at LMU, actually focused on how bacteria cope with stress, for example how the receptor meolecule CadC monitors the acidity in the environment and alerts the cell to take countermeasures to protect itself. However, ...

Physical constant passes the alcohol test

Physical constant passes the alcohol test
2012-12-15
This press release is available in German. The mass ratio of protons and electrons is deemed to be a universal constant. And rightly so, as the latest radio-astronomy observations of a distant galaxy have shown. Scientists at the VU University of Amsterdam and the Max Planck Institute for Radio Astronomy in Bonn used the 100-metre radio telescope in Effelsberg to measure absorption lines of the methanol molecule at a number of characteristic frequencies. The researchers analysed the spectrum of the simplest of all the alcohols in a very distant galaxy. The result: to ...

LAST 30 PRESS RELEASES:

Gene therapy delivers lasting immune protection in children with rare disorder

New world record set for fastest human whole genome sequencing, representing significant step towards revolutionizing genomic care in the NICU

Shedding light on materials in the physical, biological sciences

Study finds emotional tweets by politicians don’t always win followers and can backfire with diverse audiences

Paul “Bear” Bryant Awards announce 2025 Coach of the Year Award watch list

$3 million National Institute on Aging grant will provide much-needed support to underserved dementia caregivers

Study links obesity-driven fatty acids to breast cancer, warns against high-fat diets like keto

Did lead limit brain and language development in Neanderthals and other extinct hominids?

New study reveals alarming mental health and substance use disparities among LGBTQ+ youth

U.K. food insecurity is associated with mental health conditions

At least eight bat species commute or forage over pig farms in Northern Italy

Ancient teeth reveal mammalian responses to climate change in Southeast Asia

Targeting young adults beginning university may be especially effective for encouraging pro-environmental behaviors

This robotic skin allows tiny robots to navigate complex, fragile environments

‘Metabots’ shapeshift from flat sheets into hundreds of structures

Starting university boosts recycling and greener travel, a University of Bath study finds

How cilia choreograph their “Mexican wave”, enabling marine creatures to swim

Why women's brains face higher risk: scientists pinpoint X-chromosome gene behind MS and Alzheimer's

Ancient lead exposure shaped evolution of human brain

How the uplift of East Africa shaped its ecosystems: Climate model simulations reveal Miocene landscape transformation

Human Organ Chip technology sets stage for pan-influenza A CRISPR RNA therapies

Research alert: Bacterial chatter slows wound healing

American Society of Anesthesiologists names Patrick Giam, M.D., FASA, new president

High-entropy alloy nanozyme ROS biocatalyst treating tendinopathy via up-regulation of PGAM5/FUNDC1/GPX4 pathway

SwRI’s Dr. Pablo Bueno named AIAA Associate Fellow

Astronomers detect radio signals from a black hole tearing apart a star – outside a galactic center

Locking carbon in trees and soils could help ‘stabilize climate for centuries’ – but only if combined with underground storage

New research shows a tiny, regenerative worm could change our understanding of healing

Australia’s rainforests first to switch from carbon sink to source

First-trimester mRNA COVID-19 vaccination and risk of major congenital anomalies

[Press-News.org] Study is first to find significant link between sleepiness and vitamin D
New research suggests that race plays an important role in the complex relationship between daytime sleepiness and vitamin D levels