Brightsurf Science News & Current Events

November 13, 2005
New microscope allows scientists to track a functioning protein with atomic-level precision
A Stanford University research team has designed the first microscope sensitive enough to track the real-time motion of a single protein down to the level of its individual atoms.

Gene variants predict heart muscle damage after cardiac surgery
Duke University Medical Center researchers have found that patients with six specific variants of genes involved in the body's immune response are significantly more likely to suffer damage of heart tissue after cardiac surgery.

'Sharp' older brains are not the same as younger brains
Researchers working with rats have found the first solid evidence that still 'sharp' older brains store and encode memories differently than younger brains.

SWI/SNF and erythropoiesis
A research team headed by Dr. Scott Bultman (University of North Carolina) has identified an essential role for the mammalian SWI/SNF chromatin remodeling complex in red blood cell formation, to be published online ahead of print in G&D.

Major advances in techniques, devices, medications spur update of PCI guidelines
The PCI guidelines are being jointly released by the American College of Cardiology, American Heart Association, and Society for Cardiovascular Angiography and Interventions.

Heart mapping technique safely guides catheter repair of arrhythmia
In experiments with dogs, Johns Hopkins researchers successfully used a 3D map of the heart and sensor-guided catheter to perform cardiac ablation, a mainstay treatment that stops abnormally fast and potentially fatal heartbeats, or arrhythmias.

Mayo researchers lead team that discovers role of dendritic cells in childhood autoimmune disease
Mayo Clinic researchers, working with colleagues at the University of Minnesota and University of Pittsburgh, are the first to describe a new role for a specialized cell of the immune system in children suffering from a rare muscle-damaging disease known as juvenile dermatomyositis (JDM).

Drug not effective in preventing bypass vein clogging
A new drug, edifoligide, designed to prevent the clogging of veins used in coronary bypass surgery was no more effective than a placebo, according to the results of a Phase III clinical trial led by researchers at Duke Clinical Research Institute (DCRI).

Chilling can cause colds
For the first time, new research by Claire Johnson and Professor Ron Eccles at Cardiff University's Common Cold Centre supports the folklore of chilling and colds.

Limiting the damage in stroke
Scientists at the Universities of Heidelberg and Ulm and a unit of the European Molecular Biology Laboratory (EMBL) in Monterotondo, Italy, have discovered that a specific signal within brain cells may determine whether they live or die after a stroke.

Most NSAIDs raise risk of death after heart attack
Taking either COX-2 inhibitors or other non-steroidal anti-inflammatory drugs (NSAIDs) after a heart attack, especially in high doses, increases the risk of death, researchers reported at the American Heart Association's Scientific Sessions 2005.

Jefferson biologist coaxing human embryonic stem cells to make dopamine with simpler, faster method
For all of the promise embryonic stem cells hold for therapies for neurodegenerative diseases such as Parkinson's disease, they are notoriously difficult to use.

Study links low selenium levels with higher risk of osteoarthritis
People without enough selenium in their bodies face a higher risk of knee osteoarthritis, a first-of-its-kind new study suggests.

Pretreating vein graft does not help prevent graft failure in coronary artery bypass surgery
Pretreating a vein graft with edifoligide prior to coronary bypass graft surgery does not lower the rate of graft failure, according to a study in the November 16 issue of JAMA.
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