blood vessels

New Way to Study How Breast Cancer Spreads

harminka — Thu, 13 Nov 2008 08:43:52 -0600

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. The study, by scientists in Einstein's Gruss Lipper Biophotonics Center, provides detail on how cancer cells invade surrounding tissue and reach blood vessels.

Yale researchers unravel mystery of brain aneurysms

harminka — Mon, 10 Nov 2008 02:44:49 -0600

Yale researchers have taken the first critical steps in unraveling the mysteries of brain aneurysms, the often fatal rupturing of blood vessels that afflicts 500,000 people worldwide each year and nearly killed Vice President-elect Joseph Biden two decades ago.

Cancer drugs my build and not tear down blood vessels

harminka — Mon, 10 Nov 2008 01:27:03 -0600

Scientists have thought that one way to foil a tumor from generating blood vessels to feed its growth – a process called angiogenesis – was by creating drugs aimed at stopping a key vessel growth-promoting protein. But now the opposite seems to be true.

New look at mini-strokes

harminka — Fri, 10 Oct 2008 07:35:51 -0500

Like a burning fire, the brain is in constant need of oxygen, and when a blood vessel is blocked during a stroke, part of the brain becomes starved of oxygen and nutrients. When this happens, neurons in that part of the brain die off, leading to permanent loss of function in the parts of the body those neurons serve.

Study finds antioxidant deficiency linked to pulmonary hypertension

harminka — Wed, 24 Sep 2008 01:31:17 -0500

A recent study shows that a loss of antioxidants in the endothelial cells that line blood vessels in the lungs contributes to the loss of vasodilator effects and, ultimately, to the development of pulmonary hypertension. The findings appear in Clinical and Translational Science.

Healthy blood vessels may prevent fat growth

harminka — Tue, 23 Sep 2008 11:34:38 -0500

The cells lining blood vessels are known to be important for maintaining health, but researchers at the Indiana University School of Medicine believe these cells may perform an unsuspected task – controlling the development of fat cells. Their findings are reported in the September issue of the journal Stem Cells.

Better treatment for severe blood loss

harminka — Tue, 29 Apr 2008 08:30:12 -0500

Intravenous administration of isotonic fluids is the standard emergency treatment in the U.S. for patients with severe blood loss, but UC San Diego bioengineering researchers have reported improved resuscitation with a radically different approach.

Human vascular system in mice

harminka — Mon, 14 Apr 2008 13:29:28 -0500

The formation of new blood vessels, or angiogenesis, is an Achilles’ heel of tumor growth, because tumors depend on the supply of oxygen and nutrients for survival. Therefore, for some years now substances called angiogenesis inhibitors have been used in cancer treatment to suppress this process.

Leaky blood vessels open up nerve cells to toxic assault in Lou Gehrig's disease

harminka — Mon, 07 Apr 2008 13:23:40 -0500

Leaky blood vessels that lose their ability to protect the spinal cord from toxins may play a role in the development of amyotrophic lateral sclerosis, better known as ALS or Lou Gehrig’s disease, according to research published in the April issue of Nature Neuroscience.

Significant dementia risk attributable to small blood vessel damage

harminka — Mon, 07 Apr 2008 08:44:09 -0500

Autopsy data of 221 men and women found that the brains of one-third of individuals who had dementia before death showed evidence of small, cumulative blood vessel damage that can arise from hypertension or diabetes.

Stem cells from hair follicles may help grow new blood vessels

harminka — Sat, 29 Mar 2008 03:26:03 -0500

For a rich source of stem cells to be engineered into new blood vessels or skin tissue, clinicians may one day look no further than the hair on their patients' heads, according to new research published earlier this month by University at Buffalo engineers.

Basis created for directing and filming blood vessels

harminka — Thu, 27 Mar 2008 11:21:27 -0500

A new method of filming blood-vessel cells that move in accordance with targeted signals has been developed by researchers at Uppsala University in collaboration with researchers at the University of California.