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Researchers equip E. coli with a "riboswitch" chemo-navigational system

Using an innovative method to control the movement of Escherichia coli in a chemical environment, Emory University scientists have opened the door to powerful new opportunities in drug delivery, environmental cleanup and synthetic biology.

11 May 2007

Catheter-based aortic valve replacement is set to take off

Twenty years ago, few interventional cardiologists could have imagined that during their professional careers it would be possible to replace a diseased aortic valve using catheter-based techniques, rather than open-chest surgery.

11 May 2007

Researchers tackle traumatic brain injury

Researchers from the Uniformed Services University of the Health Sciences (USU) are pursuing efforts to find new ways to prevent and to treat the increasing numbers of combat troops who are suffering from injuries due to traumatic brain injury (TBI).

11 May 2007

Ritalin abuse is on the rise among teens

College is hard enough. But throw in end-of-semester exams, term papers and standardized tests, and there just aren't enough hours in the day. Enter Ritalin, the latest drug of choice among sleep-deprived students struggling to make the grade.

11 May 2007

Researchers discover how antibiotic linezolid inhibits bacterial growth

Researchers at the University of Illinois at Chicago, in collaboration with research teams from Pharmacia & Upjohn and Pfizer, have discovered precisely how the antibiotic linezolid inhibits bacterial growth.

11 May 2007

Identification of 200 new proteins that interact with the mutated protein that causes Huntington's disease

The identification of more than 200 new proteins that interact with the mutated protein that causes Huntington's disease opens the door to developing treatments for the fatal neurodegenerative disorder, said a Baylor College of Medicine researcher who took part in the work that appears online today in the journal Public Library of Science Genetics.

11 May 2007

Simple procedural change may reduce cardiac arrests outside pediatric ICUs

A simple procedural change may significantly reduce cardiopulmonary arrests outside a pediatric hospital's intensive care unit, according to a study reported at the American Heart Association's 8th Scientific Forum on Quality of Care and Outcomes Research in Cardiovascular Disease and Stroke.

11 May 2007

Percutaneous aortic valve replacement safe

Catheter techniques are expanding into new territory, successfully aiding in the replacement of narrowed, calcified aortic valves in patients too sick to withstand open-chest surgery.

11 May 2007

Stent thrombosis

Over the last year, it's been rare to utter the word "stent" without at least thinking "thrombosis," an uncommon but serious complication that's been on the minds of interventional cardiologists and patients alike.

11 May 2007

Patients with 'bleeding' strokes less likely to receive medications and counseling to prevent recurrent strokes

Patients with a hemorrhagic ("bleeding") stroke are significantly less likely to receive medications and counseling to prevent recurrent strokes compared to patients with an ischemic (clot-caused) stroke, researchers reported at the American Heart Association's 8th Scientific Forum on Quality of Care and Outcomes Research in Cardiovascular Disease and Stroke.

11 May 2007

Novel catheter technique for patching holes in the heart

A novel catheter technique for patching holes in the heart may make it possible for many patients to avoid surgery altogether and others to regain enough strength to safely undergo surgical repair at a later date, according to a study reported at the 30th Annual Scientific Sessions of the Society for Cardiovascular Angiography and Interventions.

11 May 2007

New host species for avian influenza A virus (H5N1)

In a new study published online in the open-access journal PLoS Pathogens, Dr. Vincent J. Munster, of Erasmus Medical Center, Rotterdam, and colleagues identify new host species for avian influenza A virus (H5N1) and provide important information on the distinctions between the ecology and epidemiology of various global strains of the virus.

11 May 2007

Most women 55 years and younger who have heart attacks don't recognize warning signs

Women younger than 55 years represent less than 5 percent of all hospitalized heart disease patients, but because so many heart attacks occur in the United State each year, even this small percentage affects a large number of people.

11 May 2007

MR spectroscopy of choline levels shows promise as a marker of fetal lung maturity

The researchers performed high resolution MRS on 15 amniotic fluid samples for evaluation of fetal lung maturity between 34 and 40 weeks gestation and were analyzed using trimethysilylpropionic acid (TSP) as a reference standard.

11 May 2007

New research on attitude formation

A new study by researchers from Duke, USC, and UPenn is the first to explore how questioning can affect our behavior when we have mixed feelings about an issue.

11 May 2007

Breakthrough on cytomegalovirus transmission

Researchers at the La Jolla Institute for Allergy & Immunology have shown that cytomegalovirus (CMV) in the salivary glands can be reduced , and in some cases eliminated , through the use of antibodies to enhance the disease-fighting power of the immune system.

11 May 2007