Brightsurf Science News & Current Events

November 09, 2008
Quintet of proteins forms new, early-warning blood test before heart attack strikes
A team of Johns Hopkins biochemists has identified a mixed bag of five key proteins out of thousands secreted into blood draining from the heart's blood vessels that may together or in certain quantities form the basis of a far more accurate early warning test than currently in use of impending heart attack in people with severely reduced blood flow, or ischemia.

AAO-SOE Joint Meeting Nov. 9 glaucoma research highlights
Glaucoma-related highlights of today's scientific program of the 2008 Joint Meeting of the American Academy of Ophthalmology and European Society of Ophthalmology include a study that correlates optic nerve damage in glaucoma patients with carotid artery narrowing and potentially elevated risk for stroke, and a survey that looks at how the practice of fasting, common to the world's seven major religions, may affect patient compliance with treatment for glaucoma and other eye diseases.

Annuals converted into perennials
Scientists from VIB at Ghent University have succeeded in converting annual plants into perennials.

Simple brain mechanisms explain arbitrary human visual decisions
Scientists report in Nature Neuroscience that a simple decision-making task does not involve the frontal lobes, where many of the higher aspects of human cognition, including self-awareness, are thought to originate.

Cancer risk from cardiac CT overstated: Medical University of South Carolina researchers
Radiology and cardiovascular researchers from the Medical University of South Carolina in Charleston, S.C., today presented new data that shows the risk of cancer from exposure to radiation during computed tomography for cardiovascular disease has been overstated and that new estimates are several times lower than previously published conclusions.

Cancer drugs my build and not tear down blood vessels
Scientists have thought that one way to foil a tumor from generating blood vessels to feed its growth -- a process called angiogenesis -- was by creating drugs aimed at stopping a key vessel growth-promoting protein.

Tumors grow faster without blood-supply promoting molecule
Dense networks of blood vessels thought to spur cancer's growth could actually hinder rather than promote tumor progression.

Hispanics less likely to have repeat revascularizations 1 year after angioplasty
Hispanics undergoing balloon procedures or stenting to open blocked arteries are less likely to require further revascularization procedures.

HIV's disguises no match for 'bionic assassins'
HIV is a master of disguise, able to rapidly change its identity and hide undetected in infected cells.

Sleep apnea may be risk factor for sudden cardiac death, Mayo Clinic research concludes
After studying the sleep characteristics of nearly 11,000 adults in an overnight sleep laboratory, Mayo Clinic researchers suggest that obstructive sleep apnea -- and, in particular, the low nighttime oxygen saturation of the blood it causes -- may be a risk factor for sudden cardiac death.

Flu shots may cut risk of blood clots forming in veins
Flu shots may reduce the risk of blood clots forming in veins by 26 percent.

Mental health linked to stillbirth and newborn deaths
Women with a history of serious mental illness are much more likely to have babies that are stillborn or die within the first month of life, new research reveals.

Researchers discover new risk factor for cardiovascular disease, and a way to control it
A team of international researchers -- including scientists from the McGill University Health Center and McGill University -- have discovered that having high levels of particular protein puts patients at increased risk of developing cardiovascular disease.

MP3 headphones interfere with implantable defibrillators, pacemakers
MP3 player headphones can cause potentially dangerous interactions with pacemakers and implantable defibrillators.

New findings on the role of inflammation in prevention of coronary heart disease
New results from three studies being presented at the AHA Scientific Sessions in New Orleans and published in scientific journals today provide the strongest evidence to date that a simple blood test for high-sensitivity C-reactive protein is a useful marker for cardiovascular disease.

T cell-based HIV vaccine candidate demonstrates positive results
New findings show that a T cell-based strategy remains a viable course to follow in the development of an HIV-1 vaccine.

Annual medical ethics conference celebrates 20 years of disputes
The 20th annual conference of the MacLean Center for Clinical Medical Ethics at the University of Chicago will honor the Center's founder and director, Mark Siegler, M.D., and examine his work and influence on the field.

Yale researchers unravel mystery of brain aneurysms
Yale researchers have taken the first critical steps in unraveling the mysteries of brain aneurysms, the often fatal rupturing of blood vessels that afflicts 500,000 people worldwide each year and nearly killed Vice President-elect Joseph Biden two decades ago.

Sedimentary records link Himalayan erosion rates and monsoon intensity through time
Throughout history, the changing fortunes of human societies in Asia have been linked to variations in the precipitation resulting from seasonal monsoons.

Urgent action on international coral reef crisis
Coral reef scientists and policy makers from the world's most prominent coral reef nations are meeting in Australia this week to develop urgent action plans to rescue the world's richest center of marine biodiversity from gradual decline.

Scientists announce major progress towards historic Census of Marine Life in 2010
In a report on progress toward the first Census of Marine Life, more than 2,000 scientists from 82 nations announce astonishing examples of recent new finds from the world's ocean depths.

Low-dose aspirin does not appear to reduce risk of CV events in patients with diabetes
Low-dose aspirin as primary prevention did not appear to significantly reduce the risk of a combined end point of coronary, cerebrovascular and peripheral vascular events in patients with type-2 diabetes, according to a new study in JAMA.

Engineered killer T cell recognizes HIV-1's lethal molecular disguises
Researchers at the University of Pennsylvania School of Medicine and colleagues in the United Kingdom have engineered T cells able to recognize HIV-1 strains that have evaded the immune system.

Data expand clinical utility of deCODE's DNA-based risk tests for heart attack, AF and stroke
Presentations by deCODE genetics and independent scientists at the American Heart Association Scientific Sessions 2008 are expected to expand on the clinical utility of evaluating individual risk of heart attack or of atrial fibrillation and stroke by measuring genetic markers that are the basis of the deCODE MI and deCODE AF tests.

Vitamins E and C supplements not effective for prevention of cardiovascular disease in men
Neither vitamin E nor vitamin C supplements reduced the risk of major cardiovascular events in a large, long-term study of male physicians, according to a study in the Nov.

New small-scale generator produces alternating current by stretching zinc oxide wires
Researchers have developed a new type of small-scale electric power generator able to produce alternating current through the cyclical stretching and releasing of zinc oxide wires encapsulated in a flexible plastic substrate with two ends bonded.

Heart failure hospitalization rates rise among nation's seniors
The number of patients over age 65 hospitalized for heart failure increased by 131 percent between 1980 and 2006.

1918 Spanish flu records could hold the key to solving future pandemics
Ninety years after Australian scientists began their race to stop the spread of Spanish flu in Australia, University of Melbourne researchers are hoping records from the 1918 epidemic may hold the key to preventing future deadly pandemic outbreaks.
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