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.

UCLA team uses brain aneurysm treatment technique to treat irregular heart rhythms

For the first time, a UCLA team has used a technique normally employed in treating brain aneurysms to treat severe, life-threatening irregular heart rhythms in two patients.

15 Mar 2013

Researchers develop new plug-and-play method to assemble complex cell microenvironments

Researchers at Columbia Engineering have developed a new "plug-and-play" method to assemble complex cell microenvironments that is a scalable, highly precise way to fabricate tissues with any spatial organization or interest—such as those found in the heart or skeleton or vasculature.

12 Mar 2013

Transfusion of older blood adversely affects patients undergoing cardiac surgery or critical care

Transfusion of donated blood more than three weeks old results in impaired blood vessel function, a new study of hospital patients shows.

11 Mar 2013

Abbott announces data from MitraClip system study on mitral regurgitation

Abbott today announced data from the EVEREST II (Endovascular Valve Edge-to-Edge REpair STudy) High Surgical Risk cohort evaluating the company's first-in-class catheter-based MitraClip System for the treatment of mitral regurgitation (MR).

11 Mar 2013

Study shows reduction of brain capillaries in mice immunized with amyloid beta

University of British Columbia researchers have successfully normalized the production of blood vessels in the brain of mice with Alzheimer's disease (AD) by immunizing them with amyloid beta, a protein widely associated with the disease.

8 Mar 2013

High HDL levels block development of aneurysms in the aorta

New research provides early evidence that 'good' cholesterol may possess anti-aneurysm forming properties. In laboratory-based investigations, scientists found that increased levels of high-density lipoproteins (HDL), the so-called good cholesterol, blocked the development of aneurysms - dangerous 'ballooning' in the wall of a blood vessel - in the body's largest artery, the aorta.

7 Mar 2013

Screening healthy adults could potentially prevent rare genetic disorders

Millions of people unknowingly carry rare gene mutations that put them at high risk of developing preventable diseases such as colorectal cancer, breast cancer, and several catastrophic blood vessel disorders.

6 Mar 2013

tRNA synthetases play unexpected and critical role in cancer metastasis

Studied for decades for their essential role in making proteins within cells, several amino acids known as tRNA synthetases were recently found to have an unexpected - and critical - additional role in cancer metastasis in a study conducted collaboratively in the labs of Karen Lounsbury, Ph.D., University of Vermont professor of pharmacology, and Christopher Francklyn, Ph.D., UVM professor of biochemistry.

5 Mar 2013

Investigators identify seven new genetic regions associated with AMD

An international group of investigators has identified seven new genetic regions associated with age-related macular degeneration (AMD), a common cause of blindness in older individuals. The findings, reported online March 3 in Nature Genetics, could point to new biological pathways and therapeutic targets for AMD.

4 Mar 2013

NO triggers RGS4 degradation to coordinate angiogenesis and cardiomyocyte growth

Myocardial hypertrophy, a thickening of the heart muscle, is an adaptation that occurs with increased stress on the heart, such as high blood pressure. As the heart muscle expands, it also requires greater blood flow to maintain access to oxygen and nutrients, necessitating an expansion of the cardiac vasculature.

2 Mar 2013

Scientists identify two populations of human cells that migrate to the intestine

Researchers at Wake Forest Baptist Medical Center and colleagues have identified a special population of adult stem cells in bone marrow that have the natural ability to migrate to the intestine and produce intestinal cells, suggesting their potential to restore healthy tissue in patients with inflammatory bowel disease (IBD).

28 Feb 2013

Combined complement mutations affect individuals' risk of aHUS and prognosis

Certain gene mutations affect individuals' risk of developing a serious kidney condition, as well as their prognosis after being diagnosed with the disease, according to a study appearing in an upcoming issue of the Journal of the American Society of Nephrology (JASN).

22 Feb 2013

Two new non-invasive technologies can improve early identification of tumor response to therapy

The research was published early in the January issue of the journal Technology in Cancer Research and Treatment. The article describes experiments using ultrasonic molecular imaging (USMI) and Dynamic Contrast Enhanced-Perfusion Imaging (DCE-PI) to measure response to therapy for pancreatic cancer.

21 Feb 2013

Plasma plays a crucial part in determining how blood flows

Blood flows differently than water. Anyone who has ever cut themselves knows that blood flows viscously and rather erratically. The similarity between blood and ketchup is something not only filmmakers are aware of. Experts refer to these materials as "non-Newtonian fluids," of which ketchup and blood are prime examples.

20 Feb 2013

Stroke specialists offer guidance on questions about thrombolytic therapy use

One of the most challenging issues in stroke care involves the use of clot-busting drugs such as tPA. When given quickly enough and to the right patient, such drugs can minimize stroke damage by dissolving blood clots that cause most strokes. But these blood-thinning drugs also increase the risk of brain hemorrhages and other complications.

16 Feb 2013

Blocking C5a protein prevents low birth weight in babies born to pregnant women with malaria

An international team of tropical medicine researchers have discovered a potential method for preventing low birth weight in babies born to pregnant women who are exposed to malaria. Low birth weight is the leading cause of infant death globally.

14 Feb 2013

CATT study clarifies value of genetic testing for age-related macular degeneration

New findings from a landmark clinical trial show that although certain gene variants may predict whether a person is likely to develop age-related macular degeneration (AMD), a potentially blinding eye disease that afflicts more than nine million Americans, these genes do not predict how patients will respond to Lucentis- and Avastin-, the two medications most widely used to treat the "wet" form of AMD.

13 Feb 2013

Study questions high rate of cesarean deliveries in women with aneurysms

For women with aneurysms involving the brain blood vessels, pregnancy and delivery don't appear to increase the risk of aneurysm rupture, reports a paper in the February issue of Neurosurgery, official journal of the Congress of Neurological Surgeons.

11 Feb 2013

Sunitinib shows promise against metastatic renal cell carcinoma

Findings from clinical trial patients with metastatic renal cell carcinoma, a common kidney cancer, show they did not have accelerated tumor growth after treatment with sunitinib, in contrast to some study results in animals. Sunitinib is one of several drugs, either on the market or undergoing testing, that target blood vessel growth.

10 Feb 2013

Positive results from NCI-sponsored bevacizumab trial on cervical cancer

Patients with advanced, recurrent, or persistent cervical cancer that was not curable with standard treatment who received the drug bevacizumab (Avastin) lived 3.7 months longer than patients who did not receive the drug, according to an interim analysis of a large, randomized clinical trial.