Blood Vessels News and Research

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Heidelberg scientists identify single protein responsible for varicose veins

Dr. Thomas Korff and his group at the Division of Cardiovascular Physiology of Heidelberg University's Institute of Physiology and Pathophysiology have now shown that the pathological remodeling processes causing varicose veins are mediated by a single protein.

5 Nov 2011

JDC receives NIDDK grant for research into diabetic retinopathy, kidney disease

Joslin Diabetes Center has received a $3.9 million DP3 grant from the National Institute of Diabetes and Digestive and Kidney Diseases, part of the National Institutes of Health, to identify protective factors that enable many Joslin 50-Year Medalists to remain free of commonly occurring diabetes complications.

3 Nov 2011

New laser technique could create tissue scaffolds, microneedles

In the emerging field of tissue engineering, scientists encourage cells to grow on carefully designed support scaffolds. The ultimate goal is to create living structures that might one day be used to replace lost or damaged tissue, but the manufacture of appropriately detailed scaffolds presents a significant challenge that has kept most tissue engineering applications confined to the research lab.

3 Nov 2011

Study reveals new role for the 'hormone of love'

Much of the body's chemistry is controlled by the brain - from blood pressure to appetite to food metabolism. In a study published recently in Developmental Cell, a team of scientists led by Dr. Gil Levkowitz of the Weizmann Institute has revealed the exact structure of one crucial brain area in which biochemical commands are passed from the brain cells to the bloodstream and from there to the body. In the process, they discovered a surprising new role for the 'hormone of love,' showing that it helps to direct the development of this brain structure.

3 Nov 2011

Edwards Lifescience receives FDA approval for Sapien Transcatheter Heart Valve

The U.S. Food and Drug Administration today approved the first artificial heart valve that can replace an aortic heart valve damaged by senile aortic valve stenosis without open-heart surgery.

3 Nov 2011

TriVascular receives FDA approval for Ovation stent graft system to treat AAA

The U.S. Food and Drug Administration has approved a stent graft system that provides patients with small arteries the option of less invasive surgery to repair their potentially life-threatening abdominal aortic aneurysm.

3 Nov 2011

Young microenvironment rejuvenates old stem cells

Old stem cells can be rejuvenated by being placed in a young microenvironment, research from The University of Texas Health Science Center San Antonio shows. This raises the possibility that patients' own stem cells may one day be rescued and banked to treat their age-related diseases.

2 Nov 2011

Penn surgeons perform first bilateral hand transplantation

For the first time in the Delaware Valley Region, a patient has undergone a complex and intricate bilateral hand transplant that could significantly enhance the quality-of-life for persons with multiple limb loss.

2 Nov 2011

Massive clotting can destroy placenta and cause miscarriages

Researchers at St. Michael's Hospital have identified a potential new cause for unexplained miscarriages in mice.

2 Nov 2011

Knife-edge scanning microscopy rapidly maps new blood vessels in organs

Like normal tissue, tumors thrive on nutrients carried to them by the blood stream. The rapid growth of new blood vessels is a hallmark of cancer, and studies have shown that preventing blood vessel growth can keep tumors from growing, too. To better understand the relationship between cancer and the vascular system, researchers would like to make detailed maps of the complete network of blood vessels in organs. Unfortunately, the current mapping process is time-consuming: using conventional methods, mapping a one-centimeter block of tissue can take months.

1 Nov 2011

Stanford Hospital uses new device to treat brain aneurysm

If Barbara Maluo's brain aneurysm had been discovered a few months ago, she would have had few viable treatment options. She was one of the 10 to 15 percent of brain aneurysm patients diagnosed each year with aneurysms so large and wide that they cannot be reliably treated using conventional methods of treatment.

1 Nov 2011

Infiltration of white blood cells into blood vessels may explain high blood pressure in pregnancy

Virginia Commonwealth University School of Medicine researchers have discovered that the infiltration of white blood cells into an expectant mother's blood vessels may explain high blood pressure in pregnancy.

1 Nov 2011

Fat cells play a major role in mediating ovarian cancer metastasis

A large pad of fat cells that extends from the stomach and covers the intestines provides nutrients that promote the spread and growth of ovarian cancer, reports a research team based at the University of Chicago in the journal Nature Medicine, published online October 30th, 2011.

31 Oct 2011

'Heroes of Hope Race for Brain Tumor Research' event to be held on Nov. 6

Veronica Cappalonga, 28, knows a lot about living with cancer. Diagnosed at age 6 with leukemia and at 22 with a malignant brain tumor, the Los Angeles (Mar Vista area) resident will walk in the Nov. 6 Heroes of Hope Race for Brain Tumor Research - not only to help fundraise, but also to show that survivors can fight these diseases with dignity.

29 Oct 2011

Researchers uncover biochemical signals that trigger generation of new lung alveoli

Researchers at Weill Cornell Medical College say they have taken an important step forward in their quest to "turn on" lung regeneration -- an advance that could effectively treat millions of people suffering from respiratory disorders.

29 Oct 2011

Platform approach to chemically incorporate homing receptors onto surface of cells

Stem cell therapies hold enormous potential to address some of the most tragic illnesses, diseases, and tissue defects world-wide. However, the inability to target cells to tissues of interest poses a significant barrier to effective cell therapy.

28 Oct 2011

Patients with ANCA-associated vasculitis harbor Flt1 protein that blocks blood vessel repair

In some kidney diseases, patients have high blood levels of a protein that blocks blood vessel repair, according to a study appearing in an upcoming issue of the Journal of the American Society Nephrology.

28 Oct 2011

Special hospital team reduces cumulated risk of stroke in TIA patients

Patients who had a transient ischaemic attack (TIA), sometimes referred to as a "mini stroke", were much less likely to experience further vascular events in the first year if their care was co-ordinated by a special hospital team.

28 Oct 2011

Novel technique saves Gulf War veteran's forearm

A plastic surgeon at UT Southwestern Medical Center recently used a novel technique to save the arm of a Gulf War veteran who was rushed to Parkland Memorial Hospital after a horrific accident.

28 Oct 2011

Novel stem cells method may eliminate need for antirejection drugs in transplants

Surgical researchers at the University of Washington, Seattle, have pioneered a method using stem cells that may one day eliminate the need for antirejection drugs in transplants. Primary investigator David Mathes, MD, FACS, and his research fellow Jeff Chang, MD, MS, presented their findings today at the 2011 Clinical Congress of the American College Surgeons.

28 Oct 2011