Blood Vessel News and Research

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Blood Vessels are tubes through which the blood circulates in the body. Blood vessels include a network of arteries, arterioles, capillaries, venules, and veins.

Low-dose aspirin might prevent the cardiovascular damage known to arise from use of the painkiller rofecoxib (Vioxx)

Their findings that a chemical imbalance might underlie such damage could also lead to the development of anti-inflammatory drugs without the adverse side effects, the researchers said.

20 Sep 2005

New study dispels role of B vitamins in preventing heart attacks

According to the findings of a new study, by giving B vitamins to heart attack survivors their risk of having another attack is not reduced, and it may in fact do more harm than good.

6 Sep 2005

Stents may be too expensive to use in all patients

A device that improves outcome in patients with coronary artery disease may be too expensive to use in all patients, suggests a study published early online and in the upcoming issue of The Lancet.

6 Sep 2005

Can a new combination treatment prevent a secondary stroke in children with sickle cell anemia?

St. Jude Children’s Research Hospital will lead a national Phase III clinical trial to investigate whether a new combination treatment can prevent a secondary stroke in children with sickle cell anemia (SCA) and eliminate the need for nightly injections with a drug that reduces iron overload in these patients.

1 Sep 2005

Simple new way to modify collagen, paving the way for better infection-fighting bandages

Collagen often pops up in beauty products and supermodel lips. But by mating collagen with a molecular hitchhiker, materials scientists at Johns Hopkins hope to create some important medical advances.

30 Aug 2005

Viagra fights heart and lung diseases

German researchers have reported on the impact of Viagra on pulmonary hypertension at the Frontiers of Vascular Medicine Conference at Monash University this week.

30 Aug 2005

Ways to avoid hazards of heart bypass under study

The heart-lung bypass machine that stills the heart while surgeons bypass an adult’s clogged arteries or repair a baby’s malformed heart can also trigger a potentially deadly inflammatory response.

28 Aug 2005

Nitric oxide synthase plays a role in peripheral vascular disease

The enzyme nitric oxide synthase plays a role in peripheral vascular disease, a common disease that impairs the mobility of 25 percent of people over the age of 50, according to a Yale study in the Proceedings of the National Academy of Sciences (PNAS).

26 Aug 2005

Chronic use of nitroglycerin for chest pain could lead to mitochondrial damage

Definitive evidence to explain how the drug nitroglycerin relieves chest pain has resulted from a new study by Howard Hughes Medical Institute investigators at Duke University Medical Center. Nitroglycerin relaxes blood vessels to boost blood flow, yet the mechanism by which the drug works has remained a matter of scientific controversy.

16 Aug 2005

Little convincing evidence that dietary antioxidant supplements such as vitamin E prevent heart disease

Instead there has been a surprise finding, which relates to a synthetic antioxidant, the drug Probucol, which is no longer prescribed in Australia.

11 Aug 2005

Over-supply of blood sugar could be a major cause of erectile dysfunction in diabetic men

Researchers have found that one particular simple sugar, present in increased levels in diabetics, interferes with the chain of events needed to achieve and maintain erection and can lead to permanent penile impairment over time.

9 Aug 2005

Scientists identify protein that may inhibit cellular movement

Scientists from the University of North Carolina at Chapel Hill School of Medicine and the UNC Lineberger Comprehensive Cancer Center have identified a protein that may inhibit cellular movement, or migration.

8 Aug 2005

Signs of atherosclerosis seen in apparently healthy young adults

Young adults who seem to be healthy, but have a clustering of heart disease risks factors known as metabolic syndrome, tend to have signs of thickening of their carotid artery walls, which is an early indication of atherosclerosis, according to a new study in the Aug 2, 2005, issue of the Journal of the American College of Cardiology.

2 Aug 2005

Arf gene prevents excessive growth of blood vessels in the developing eye

A gene better known for its role in preventing cancer also plays a key role in the developing embryo, where the gene prevents excessive growth of blood vessels, according to investigators at St. Jude Children's Research Hospital.

2 Aug 2005

Bone marrow may be source of new egg-cell generation

Last year a group of Massachusetts General Hospital (MGH) researchers announced surprising findings that female mice - contrary to longstanding theories of mammalian reproductive physiology - retained the ability to make new egg cells or oocytes into adulthood.

27 Jul 2005

New breakthrough on the origins of Alzheimer's disease

Scientists from the Flanders Interuniversity Institute for Biotechnology (VIB) associated with the University of Antwerp have achieved a new breakthrough in their research on the origins of Alzheimer's disease.

27 Jul 2005

Multiple rare mutations within a single gene may increase risk for autism

While debate still rages over the 'cause' of autism, mounting evidence suggests that genetic factors play a major role in the disease.

25 Jul 2005

ev3 announces FDA approval of treatment for brain vascular disorder

ev3 today announced that its majority-owned subsidiary Micro Therapeutics has received pre-market application (PMA) approval from the U.S. Food and Drug Administration (FDA) to commercialize its Onyx Liquid Embolic System (Onyx) for the treatment of arterio-venous malformations (AVMs), a vascular disorder in the brain.

21 Jul 2005

Stress test has less effect on blood vessels when hormone cortisol is blocked

Negative effects of the hormone cortisol on the inner lining of blood vessels, the endothelium, may explain how stressful events trigger heart attacks and other cardiovascular problems, according to a new study in the July 19, 2005, issue of the Journal of the American College of Cardiology.

21 Jul 2005

New research suggests that accumulation of amyloid-beta peptides in cerebral blood vessels causes vascular damage in Alzheimer's disease

New research suggests that accumulation of amyloid-â peptides in cerebral blood vessels, as opposed to the brain itself, may be a more important pathological mediator of Alzheimer's disease. Two independent yet related articles describe such findings in the August issue of The American Journal of Pathology.

21 Jul 2005