Brightsurf Science News & Current Events

November 14, 2010
Penn study: Hospital CPR quality is worse at night
CPR quality is worse during in-hospital cardiac arrests occurring overnight than those that happen during the day, according to a new University of Pennsylvania School of Medicine study that will be presented at the American Heart Association's annual Scientific Sessions on Nov.

Symptoms of obese heart failure patients improved after bariatric surgery
A small Mayo Clinic study has found that morbidly obese heart failure patients who undergo bariatric surgery gain long-lasting and meaningful improvements in disease symptoms and quality of life.

Light technology to combat hospital infections
Researchers at the University of Strathclyde in Glasgow, Scotland, have developed a pioneering lighting system that can decontaminate air and exposed surfaces in hospitals and other clinical environments.

GUMC: fMRI predicts outcome to talk therapy in children with an anxiety disorder
A brain scan with functional MRI is enough to predict which patients with pediatric anxiety disorder will respond to

Smoking among some adults dropped dramatically in past three decades
Smoking among some adults dropped during the past three decades, with greater decreases among those with higher incomes and more education.

Patients receiving dialysis are at a heightened risk for sudden cardiac death
Approximately 500,000 Americans require dialysis to treat kidney disease; of that population nearly half of the deaths that occur are caused by cardiovascular disease.

Virtual reality helps researchers track how brain responds to surroundings
New tools inspired by video games are revealing how the brain senses and responds to its surroundings, finds new human and animal research.

DNA sequence variations linked to electrical signal conduction in the heart
Scientists studying genetic data from nearly 50,000 people have uncovered several DNA sequence variations associated with the electrical impulses that make the heart beat.

Tiny molecules protect from the dangers of sex
Pathogenic fungi have been found to protect themselves against unwanted genetic mutations during sexual reproduction, according to researchers at Duke University Medical Center.

Vitamin D deficiency does not increase stroke risk among blacks
Vitamin D deficiency doubled risks of fatal stroke among white people, but had no effect on stroke death in blacks.

Poor sleep quality increases inflammation, community study finds
People who sleep poorly or do not get enough sleep have higher levels of inflammation, a risk factor for heart disease and stroke, researchers have found.

Less salt in teenagers' diet may improve heart health in adulthood
Small decreases in salt consumption among teens could reduce high blood pressure, heart disease and stroke in adulthood.

Mental introspection increases as brain areas begin to act in sync
Neuroscientists at Georgetown University Medical Center can now show, using functional MRI images, why it is that behavior in children and young adolescents veers toward the egocentric rather than the introspective.

Embryonic stem cell culturing grows from art to science
A team of researchers at the University of Wisconsin-Madison reports the development of a fully defined culture system that promises a more uniform and, for cells destined for therapy, safer product.

New protocol reduces children's radiation exposure during cardiac procedures
Radiation exposure during cardiac procedures to diagnose and treat pediatric heart rhythm disturbances is not insignificant.

Pitt-led team develops nanoscale light sensor compatible with 'Etch-a-Sketch' nanoelectronic platform
Pitt, UW-Madison researchers overcome one of nanotechnology's most daunting challenges by creating a nanoscale light sensor that can be combined with near-atomic-size electronic circuitry to produce hybrid optic and electronic devices, as reported in Nature Photonics.

Spleen might be source or damaging cells at spinal cord injury site
The spleen, an organ that helps the body fight infections, might also be a source of the cells that end up doing more harm than good at the site of a spinal cord injury, new research suggests.

Death of spouse, child may cause higher heart rate, other dangers
Immediately after the death of a loved one, bereaved spouses and parents can experience an increase in their heart rate and other heart rhythm abnormalities -- possibly increasing the risk of heart attack and sudden cardiac death.

Women with high job strain have 40 percent increased risk of heart disease
Women who report high job strain have increased risk of heart disease.

A new read on DNA sequencing
A new technique for reading the DNA code relies on a fundamental property of matter known as quantum tunneling, which operates at the subatomic scale.

Research uncovers extensive natural recovery after spinal cord injury
A study led by researchers in the Department of Neurosciences at the University of California, San Diego School of Medicine shows unexpected and extensive natural recovery after spinal cord injury in primates.

Common links between obesity and drug abuse found
New animal research helps explain why some eat without hunger or to excess.

Molecular fossil
In today's world of sophisticated organisms proteins are the stars.

Light to moderate drinking linked to fewer heart problems in male bypass patients
Male heart bypass patients who drank light to moderate amounts of alcohol daily were less likely to require additional heart procedures or suffer a heart attack or stroke, compared to non-drinking patients.

Vitamin D deficit doubles risk of stroke in whites, but not in blacks
Low levels of vitamin D, the essential nutrient obtained from milk, fortified cereals and exposure to sunlight, doubles the risk of stroke in whites, but not in blacks, according to a new report by researchers at Johns Hopkins.

New animal research shows effects of prenatal drug exposure and early life infections on the brain
New findings released today help identify the long-term impact of the prenatal environment and early parental care on the brain.

Studies expand oxytocin's role beyond 'cuddle hormone'
New research suggests the chemical oxytocin -- dubbed the

Bat brains offer clues as to how we focus on some sounds and not others
How do you know what to listen to? In the middle of a noisy party, how does a mother suddenly focus on a child's cry, even if it isn't her own?

Synchronizing a failing heart
One of the largest, most extensive worldwide investigations into heart failure, led by the University of Ottawa Heart Institute, conclusively proves that a new therapeutic implant synchronizes and strengthens a fading heart beat while reducing risk of death by 24 percent compared to the current treatment.

Sunday news tips
The following are a list of presentations at the American Heart Association Science Sessions 2010 meeting. is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to