Blood Vessels News and Research

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Immune cells known as macrophages linked to growth of lymph vessels in eyes,

Scientists at Schepens Eye Research Institute have discovered that a particular immune cell contributes to the growth of new lymph vessels, which aid in healing. This cell, known as a macrophage, is called in by the body during the wound healing process.

6 Sep 2005

Human tissue grown from stem cells, available for transplant in the next four years

A team of researchers from the University of Liverpool in the UK have embarked on an ambitious project which could see human tissue grown from stem cells, available for transplant in the next four years.

5 Sep 2005

Carbohydrate known as OGT2378 inhibits tumor growth

A non-toxic chemical compound that prevents cancer cells from producing a critical membrane component has been shown to suppress tumor growth and tumor size in mice without unwanted side effects, according to researchers at the Children’s National Medical Center in Washington, D.C.

30 Aug 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

When it comes to heart bypass surgery, women twice as likely to die

According to a new study when it comes to heart bypass surgery, women are nearly twice as likely as men to die from complications.

30 Aug 2005

Designer molecules that combine metals such as copper with natural organic materials could treat diseases in the body

That's the finding of chemists at Ohio State University, who have successfully tested such molecules against portions of HIV and Hepatitis C virus RNA in the laboratory. They've also created molecules that act like ACE, or angiotensin-converting enzyme, inhibitors - drugs that are used to lower blood pressure.

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

Statins reduce heart attack deaths by 50%

According to a U.S. study, giving a heart attack patient a statin drug as soon as possible reduces the chance he or she will die by 50 percent.

30 Aug 2005

Dental problems caused by radiation, chemotherapy should be treated before a child undergoes immunosuppression as part of bone marrow transplantation therapy

Many children who undergo bone marrow transplantation (BMT) as part of cancer treatment already have dental abnormalities that leave them vulnerable to potentially life-threatening bacterial infections, according to investigators at St. Jude Children's Research Hospital. A report on this study appears in the prepublication online edition of Bone Marrow Transplantation.

29 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

UCI study helps identify one reason why women have lower stroke risk than men

Estrogen's role as an inhibitor of toxic-free radicals in cerebral blood vessels may be a key reason why premenopausal women have a lower stroke risk than men.

26 Aug 2005

Non-invasive imaging may help predict type 1 diabetes and response to treatment in humans

A key obstacle to early detection of type 1 diabetes - as well as to rapid assessment of the effectiveness of therapeutic intervention - has been the lack of direct, non-invasive technologies to visualize inflammation in the pancreas, an early manifestation of disease.

22 Aug 2005

Reasons for complications with kidney failure patients

Mayo Clinic researchers searching for explanations of high mortality rates among kidney failure patients undergoing hemodialysis are focusing their attention on the use of heparin, a drug used to reduce clotting of the blood.

18 Aug 2005

Good news for the hundreds of thousands of cancer patients who undergo radiation therapy

Scientists report that they have a better understanding of the complex effects of radiation on tumor biology and that specific radiation treatment regimens may enhance the effectiveness of radiotherapy, even in tumor populations that have been notoriously difficult to treat.

16 Aug 2005

New study shows even non-prescription painkillers raise blood pressure in women

According to a new U.S. study women who take higher doses of common, over-the-counter painkillers, such as Ibuprofen and even Tylenol, have higher blood pressure than women who do not.

16 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

Genomes of Trypanosoma brucei and Trypanosoma cruzi sequenced

Oxford scientists have contributed to the genome sequencing of two parasites which cause major health problems in the developing world.

15 Aug 2005

Fluorescence spectroscopy able to detect the presence of inflammatory cells that are associated with critical atherosclerotic plaques

Because atherosclerotic plaque typically builds up without symptoms and leads to more than 1 million deaths in America each year, the search is on to develop early detection devices that will enable physicians to offer treatment before the disease progresses to advanced stages.

13 Aug 2005

Pre-mRNA that codes for inflammatory protein identified

In a discovery that upends a longstanding tenet of human biology, University of Utah School of Medicine researchers have shown that a key process in gene regulation can occur in human platelets, unique cells that are unusual because they don't have a nucleus (anucleate).

11 Aug 2005