Brightsurf Science News & Current Events

November 12, 2003
Caregivers for patients with dementia need more support before patient dies, less after
Findings from the first major study to follow family members who provide care to an elderly loved one with dementia show the vast majority of caregivers need more support before the death of their loved one than after, a realization that could lead to new interventions that consider the well-being of the caregiver as well as the comfort of the patient.

Estrogen receptor-a disruption and vasodilation in coronary arteries
In women, the risk of coronary heart disease increases significantly after menopause.

Heart attacks rose at Brooklyn hospital after terrorist attack
The number of heart attack cases surged at a Brooklyn, New York, hospital in the two months after the Sept.

Nicotine exposure in aging hearts
New study in rats suggests that nicotine at concentrations found in the blood of smokers may increase atrial vulnerability to inducible atrial tachycardia and atrial fibrillation in normal adult atria with no atrial disease.

News tips for Wednesday, Nov. 12, 2003
To complement our news releases, here are additional news tips reported by the American Heart Association's News Media Relations from more than 3,700 abstracts.

Procedure cures atrial fibrillation
An innovative procedure completely cures the overwhelming majority of patients with the most common form of irregular heartbeat, by stopping haywire electrical signals in areas of heart muscle and some of the veins that connect to it.

Teaching hospital physicians report trouble obtaining specialty services for the uninsured
U.S. teaching hospitals, many of which are located in inner-city areas, are often considered key providers of health services to uninsured and underinsured patients.

Natural selection in a nutshell
If they could, many women would likely take a page out of the red squirrel's book.

Major mutations, not many small changes, might lead way to new species
Experiments with monkeyflowers add to the debate over what causes one species to become two: Do new species arise according to the 150-year-old Darwin theory of evolution that says it takes a hundred small genetic changes, each with mounting effect, or does speciation get kick-started by a few mutations that cause large effects?

Stem cells from human peripheral blood protect against acute stroke in rats
Enriched stem cells from the circulating blood of human donors improved functional recovery when transplanted into the brains of rats with strokes, report researchers from the University of South Florida and Medical College of Georgia.

Sixth annual child advocacy award dinner
On Wednesday, December 3, 2003, The NYU Child Study Center will host its sixth annual dinner at the Regent Wall Street.

Low infection rate in Arrow Lionheart* European trial
The results of the first study of the Arrow LionHeart*, a heart assist device conceived of and developed at Penn State College of Medicine in cooperation with Arrow International, Inc., show low incidence of infection and few device failures.

Transparent fish provide window on blood formation and marrow transplantation
HHMI researchers have developed powerful new techniques to see in unprecedented detail how blood-forming cells develop in zebrafish.

New memory device could offer smaller, simpler way to archive data
Engineers at Princeton University and Hewlett-Packard have invented a combination of materials that could lead to cheap and super-compact electronic memory devices for archiving digital images or other data.

UCLA researchers to test experimental pill
Researchers at UCLA's Jonsson Cancer Center are seeking volunteers with advanced colorectal cancer for two final phase studies that test the cancer-fighting powers of an experimental pill designed to cut off the blood supply that feeds oxygen and nutrients to the tumor.

Brookhaven Lab scientist helps create a new form of the element carbon
A new phase of the element carbon, a superhard compressed graphite, has been identified by a research team that includes a scientist from the National Synchrotron Light Source (NSLS) at the U.S.

Dying nerves cause even more harm after spinal cord injury
A new study in rats has found that after severe spinal cord injury, molecules intended to help nerves communicate can attack the tissue surrounding the initial injury and cause further damage.

Tissue-engineered valves give diseased hearts new life
Heart valves engineered from patients' own tissue may offer a new treatment for valvular heart disease, researchers reported today at the American Heart Association's Scientific Sessions 2003.

Implanted stimulator for Parkinson's disease impairs cognitive function
Investigators at Washington University School of Medicine in St. Louis have found that stimulating the brain's subthalamic nucleus (STN) to control motor symptoms of Parkinson's disease has an unintended consequence: It interferes with cognitive function.

Salk news: Diabetes first steps
A Salk Institute study has identified the first molecular steps that can lead to adult diabetes.

Survival improves in clinical trial for severe birth defect, with or without fetal surgery
Newborns with a severe birth defect that hampers lung growth have an equal chance of survival whether they are treated with maternal/fetal surgery or receive their first operation after birth -- if the infant receives life support from the moment of birth from a highly experienced neonatal intensive care team.

Research sheds new light on evolution
For more than a century, scientists have concluded that a species evolves or adapts by going through an infinite number of small genetic changes over a long period of time.

Observing a burst with sunglasses
Using ESO's Very Large Telescope, astronomers made the first detailed study of the changes of the polarisation of an optical gamma-ray burst afterglow with time.

Painless way to gauge muscle pain
Magnetic resonance elastography (MRE) is a new painless way of pinpointing precisely which areas of deep muscle are causing pain or stiffness.

Heart failure consumes significant health care resources
In the first such analysis of the costs of heart failure, Duke University Medical Center researchers have found that elderly patients with the debilitating heart disorder have health care expenditures up to three times higher than similar patients without heart failure.

ESA's first step towards Mars Sample Return
What is the next best thing to humans landing on Mars and exploring the wonders of the Red Planet?

OHSU researchers reveal relationship between weight gain and female hormones
Scientists at OHSU noted a correlation between hormone changes in women normally associated with menopause and weight gain.

New pathway discovered at Stanford provides insight into heart disease
A new signaling pathway appears to play a critical role in the development of heart disease, according to researchers at Stanford University School of Medicine.

Visualizing Alzheimer's disease
Using recently developed techniques for imaging individual cells in living animals, a team led by researchers at Washington University School of Medicine in St.

Genetics mutations resulting in delayed puberty are focus of MCG study
Identifying genetic mutations that delay puberty in a small number of children may also lead to better infertility treatment and birth control, says a Medical College of Georgia physician-scientist.

Hearing aid research gets federal boost
A four-year, $6.5 million award from the National Institutes of Health to support the biomimetic acoustic sensor research of Professor Ron Miles is expected to lead to a revolution in hearing aid technology within the next four years.

Granny gorilla knows best
A captive female gorilla has been spotted teaching her daughter how to take care of her newborn baby.

Women treated more aggressively for hypertension, yet results similar to men
Duke University Medical Center researchers have found an interesting paradox about gender differences in heart disease - women have a greater burden of hypertension than their male counterparts and they receive more aggressive treatment for it, yet they obtain no better blood pressure control.

Novel sensors help clear the air
Traditional analytical techniques are in danger of being replaced by new competing technologies, which are not only more advanced but also more convenient.

NIA statement on IOM testosterone report
The National Institute on Aging (NIA) commends the Institute of Medicine (IOM) for its thoughtful report evaluating the pros and cons of conducting clinical trials of testosterone replacement in older men.

Antiplatelet drug found to reduce risk of recurrent heart attacks and stroke is cost-effective
The antiplatelet medicine clopidogrel is not only effective in reducing the risk of recurrent heart attack and stroke, it is also extremely cost-effective, according to data presented today by researchers from Emory University at the American Heart Association's Scientific Sessions.

ESA and the EU: The start of a new partnership
Negotiations on a framework agreement for structured cooperation between ESA and the European Community have been concluded.

Rice geophysicist to lead multinational ocean drilling effort
Rice University geoscientist Manik Talwani has been named the first president of IMI, a not-for-profit corporation that has qualified to fill the role of the central management office for the Integrated Ocean Drilling Program (IODP).

Family factors affect drug use by Mexican-American teens
As Mexican-American teens become more

Hello, will you be my friend?
Whether you want to meet a business partner or soul-mate, intelligent tags could provide those ice-breaker questions often required at networking conferences or parties.

One in four patients at risk if surgery delayed after failed angioplasty
Duke Clinical Research Institute and Canadian cardiologists have estimated that 25 percent of patients who unexpectedly require emergency heart surgery after a failed angioplasty are at risk of harm or death if any delays to the surgery are encountered.

Cardiac MRI detects thinned heart muscle previously deemed unsalvageable
Duke University Medical Center researchers have used cardiac magnetic resonance imaging (MRI) to demonstrate that heart muscle that had been

With flu season coming, don't forget...exercise?
With winter around the corner, Americans are lining up for flu shots, stocking up on cough and cold medicines, and taking inventory of what antibiotics they may again need.

Research shows women crime victims fear crime less than men
New research by the University of Warwick shows that women who have been victims of crime are much less fearful of ordinary crime than men.

Bullied children at risk of depression, antisocial behavior
Young children who are bullied at school show signs of antisocial and depressive behavior as a result, according to a new study.
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