Blood Vessels News and Research

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Scientists use patient's own stem cells to treat heart failure

Researchers at the University of Utah are enrolling people in a new clinical trial that uses a patient's own stem cells to treat ischemic and non-ischemic heart failure.

17 Nov 2008

Scientists discover new cause of fatal brain injury from acute viral meningitis

In a November 16 advance, online publication of the journal Nature, the researchers say their discovery revamps common beliefs about how such potentially lethal infections may be ravaging the brain and suggests the possibility of new treatments.

17 Nov 2008

Hypertension may develop undetected in young African-American men

Young and healthy African-American men have higher central blood pressure and their blood vessels are stiffer compared to their white counterparts, signs that the African American men are developing hypertension early and with little outward sign, according to a new study.

17 Nov 2008

Discovery of new mechanism that regulates formation of blood vessels

Researchers in one of the external groups of the Instituto Gulbenkian de Ciencia (IGC), in Portugal, have discovered a novel mechanism which regulates the process whereby new blood vessels are formed and wounds heal, including chronic wounds, such as those found in diabetic patients and those suffering from morbid obesity.

17 Nov 2008

Angioplasty safer in community hospitals when team has more experience

Heart experts at Johns Hopkins have evidence that life-saving coronary angioplasty at community hospitals is safer when physicians and hospital staff have more experience with the procedure.

12 Nov 2008

New method of viewing cancer cells shows how breast cancer spreads

In a breakthrough study appearing in advance online publication of Nature Methods, researchers at Albert Einstein College of Medicine of Yeshiva University describe for the first time a method of viewing individual breast cancer cells for several days at a time.

12 Nov 2008

Nanomatrix stent coating designed to mimic natural endothelium

A nanomatrix for stent coating designed at the University of Alabama at Birmingham (UAB) mimics natural endothelium, the substance that lines blood vessels, and promises the potential to prevent post-operative tissue scaring along the blood vessel wall, greatly reducing the possibility of future thrombosis, or blockage at the stent site.

11 Nov 2008

Joyful music has a healthy effect on blood vessel function

Listening to your favorite music may be good for your cardiovascular system.

11 Nov 2008

Catheter ablation works better than drugs for heart rhythm disorder

Treating a common heart rhythm disorder by burning heart tissue with a catheter works dramatically better than drug treatments, a major international study has found.

11 Nov 2008

Sex hormones may affect atherosclerosis

Naturally produced sex hormones may influence the risk and progression of atherosclerosis, or hardening of the arteries, Johns Hopkins researchers report in a recent study.

11 Nov 2008

Medicine, math and engineering combine to reveal how sepsis and less severe infections occur

It's a leading cause of death, but no one knows for sure how and why it happens. It's a major source of health care costs, adding days or weeks to the hospital stays and lost work time of millions of people. But no one fully understands how best to fight it.

11 Nov 2008

Drug-eluting better than bare metal stents in diabetics

Drug-eluting stents reduced the risk of revascularization, heart attack and death in diabetics as compared with bare-metal stents in the largest observational comparison, researchers reported at the American Heart Association's Scientific Sessions 2008.

11 Nov 2008

Tailored anti-clotting medications reduce adverse effects after percutaneous coronary intervention

Individually tailored anti-clotting medication dosing significantly cut the rate of adverse events after non-emergent percutaneous coronary intervention (PCI) with stenting, researchers reported at the American Heart Association's Scientific Sessions 2008. Results of the Tailored Clopidogrel Loading Dose According to Platelet Reactivity Monitoring to Prevent Stent Thrombosis study were presented as a late-breaking clinical trial.

11 Nov 2008

Timing is everything for some heart attack patients

There is strong evidence that getting to the hospital quickly during a heart attack is critical, since early treatment saves both lives and heart muscle. And if the responsible coronary artery is completely blocked, it should be opened as soon as possible.

11 Nov 2008

Obesity raises levels of hormone leptin

Obese people who don't have high cholesterol or diabetes might think they're healthy - despite the extra pounds.

11 Nov 2008

Obstructive sleep apnea may be risk factor for sudden cardiac death

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

11 Nov 2008

New technology to control the motion of bacteria that produce cellulose - biomaterial and medical implant potential

Two Virginia Tech engineers have put bacteria to work as tiny weavers of biomaterials and medical implants.

11 Nov 2008

Diabetes and foot problems

Bradford Miller has had diabetes for nine years, and he knows the importance of quick treatment for related problems such as swelling and numbness in the feet.

11 Nov 2008

Daily rhythms in endothelial cells may explain why heart attacks occur most often in early morning hours

It's not just the stress of going to work. Daily rhythms in the activity of cells that line blood vessels may help explain why heart attacks and strokes occur most often in early morning hours, researchers from Emory University School of Medicine have found.

11 Nov 2008

Medtronic announces U.S. trial data on transcatheter valve for congenital heart disease

Today at the annual scientific sessions of the American Heart Association, the first U.S. clinical trial data on the Melody transcatheter pulmonary valve were presented. These findings also represent the first U.S. data on transcatheter valves in a population with congenital heart disease and the first reported U.S. data on the use of a transcatheter valve in the pulmonary position. The Melody valve is currently investigational in the U.S.

10 Nov 2008