vascular 2 2

Tag: "vascular" at biology news

Team of international scientists departs today to discover the unknown in China's Himalayan region

...analysis shows that an estimated 50 percent of all vascular plants and 42 percent of terrestrial vertebrates exist only in these 34 hotspots. Results from the expedition will be shared with numerous entities, such as the Chinese government, environmental organizations and scientists to develop strategies to ...

Why do aneurysms form? New studies suggest leading role for white blood cells

...normal. In both cases, says senior author and U-M vascular surgeon Gilbert Upchurch, M.D., the rodents that h...search Fund. Upchurch is an associate professor of vascular surgery and the Leland Ira Doan Research Professor of Vascular Surgery at the U-M Medical School. ...

Ants, not evil spirits, create devil's gardens in the Amazon rainforest, study finds

... purposes, and the basic circulatory system of all vascular plants," she says. A census of the rainforest from 2002 to 2004 revealed that devil's gardens grew by 0.7 percent per year. "Using this growth rate, we estimate that the largest devil's garden in our plot, with 351 plants, is 807 years old," the aut...

Stem cells bring fast direct improvement, without differentiation, in acute renal failure

...insults" lead to destruction of kidney tubular and vascular cells, initiating a significant inflammatory response. Recovery of kidney function that is adequate for patient survival depends primarily on the protection and regeneration of destroyed and injured cells. Yet virtually no progress has been made tow...

Researchers develop gene therapy to reverse pulmonary arterial hypertension

...y targeting survivin selectively induces pulmonary vascular apoptosis and reverses pulmonary arterial hypertension. It's published in the June issue of The Journal of Clinical Investigation. In an accompanying editorial entitled Lessons learned from cancer may help in the treatment of pulmonary hypertension, ...

Israeli scientists successfully transplant frozen-thawed ovaries in sheep

...aw the right ovary from eight sheep, including the vascular pedicles (the attachment that contains the main blood vessels), and replace the ovary up to a fortnight later, either at the original site or by grafting it on to the pedicle of the (removed) left ovary. Of the five sheep where normal blood flow resu...

UK is first to administer new anti-clotting technology

...is simple: we want to help patients with heart and vascular disorders by being at the forefront. Our research efforts are clearly bringing Kentuckians closer to the leading edge of the best medicine has to offer," Moliterno said. ...

Researchers learn how blood vessel cells cope with their pressure-packed job

...ne arteries can make them healthy and resistant to vascular diseases. UCSD researchers stretched cells in a w...ne arteries can make them healthy and resistant to vascular diseases. Bioengineering researchers at UCSD's Jacobs School of Engineering will report in the Nov....

UT Southwestern researchers unravel control of growing blood vessels

...re with it and thereby potentially prevent various vascular disorders in humans," said Dr. Eric Olson, chairman of molecular biology and senior author of the paper. The work appears in the August issue of the journal Developmental Cell. There are three types of muscles in the body ?skeletal, cardiac and smoo...

Researchers show how air pollution can cause heart disease

... the researchers also examined various measures of vascular inflammation, which is involved in atherosclerosis on a number of levels. In the aortas of PM2.5–exposed mice, for example, they found increased levels of macrophages, immune cells that are an important ingredient in plaque deposits and also active p...

Feds give researchers ok for safety test of adult stem cells in patients with heart disease

...xisting therapies include drugs, gene therapy, and vascular interventions for relief of arterial obstructions. In 2003, approximately 750,000 coronary artery bypass graft (CABG) surgeries were performed worldwide and approximately 1.8 million balloon angioplasty procedures were performed. While these interve...

Group proves it's possible to grow new lung alveoli by growing new blood vessels

... It seems possible that by augmenting or restoring vascular growth, overall lung growth and ultimately lung fu...hébaud. Knowing that a particular protein, VEGF, a vascular endothelial growth factor, is crucial for the normal development of the lung, and that angiopoeitin-...

Genetic key to growth of new arteries is identified

...esponse to blocked arteries. A team led by SFVAMC vascular surgeon Rajabrata Sarkar, MD, PhD, has demonstrate... of the study, Sarkar and his group mimicked human vascular disease in the femoral arteries of normal mice and of mice that lacked the MMP2 gene, which encodes ...

Bioengineers create stable networks of blood vessels

...ther, detailed microscopic studies showed that the vascular networks were stable as implants for up to six wee... is often an association of nerve connections with vascular networks, they tested to see if a combination of the blood vessel-forming and nerve-forming cells wo...

Plants give pests sock in the gut

...were able to determine that Mir1-CP is made in the vascular bundles, or strands of conducting vessels in the s...rts feeding, the enzyme is probably transported to vascular tissue that conducts sugars and other metabolic products upward from the leaves, as well as to the s...

Heart-healthy compound in chocolate identified

..., at least in part, responsible for the beneficial vascular effects that are observed after the consumption of...e laboratory, flavanols administered to samples of vascular tissue caused the tissue to relax. Pure epicatechin consumed by humans had much the same effect as ...

Botox could help target resistant tumors for treatment

...mined strategies that transiently opened the tumor vascular bed to alleviate tumor hypoxia. "Hypoxia is a sou... The tumors were then examined for three days, for vascular and perfusion changes as well as responses to anti-cancer therapies. In tests on oxygenation, cellul...

Basic research leads to a novel cancer therapy

...ue just a few cubic millimetres in size can create vascular endothelial growth factor (VEGF), which triggers blood vessel development. Ullrich found some of the most important evidence in research on animals, conducted with colleagues Birgit Millauer and the late Werner Risau, formerly of the Max Planck Inst...

Molecular force field helps cancer cells defend against attack

...prevent FAK from linking with the protein known as vascular endothelial growth factor receptor 3, or VEGFR-3. The protein is tied to the growth of channels in the lymph system that serve as cellular superhighways for cancer spread and is found in breast, colon and thyroid tumors. Cance and colleagues were th...

Free-radical busting antioxidants might not promote healthy hearts

...lled Probucol (Lorelco) in laboratory rodents with vascular disease. Probucol reduces the risk of heart disease in humans, but is no longer prescribed in the US and Australia because of adverse side effects: a tendency to lower good cholesterol along with the bad and the potential to induce an irregular heart...

1 2 3 4 5