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Tag: "vein" at biology news

UCLA scientists transform HIV into cancer-seeking missile

...DS virus. They injected the camouflaged HIV into a vein in the mouse's tail and used a special optical camera to watch the carrier's movement. "The virus traveled through the animal's bloodstream and homed straight to the cancer cells in the lungs, where the melanoma had migrated," said Chen. When the r...

Pulsating ultrasound enhances gene therapy for tumors

...jected an easily measurable reporter gene into the vein in their tails. The reporter gene in this study--a fluorescent-green protein found in deep-sea invertebrates--was visible in all sections of the tumors exposed to pulsed-HIFU. Tumors not targeted with pulsed-HIFU showed negligible signs of the gene. ...

Sugar beet virus mutation requires Texas touch

... in 2002 when a new strain of beet necrotic yellow vein virus emerged. The new strain threatened sugar be...ion in the world, Rush said. Beet necrotic yellow vein virus, which causes the disease known as rhizomania, was found near Hereford in 1986 by a California...

Columbia study shows widely used artery clearing device does not help patients during heart attack

...mmonly and successfully used during angioplasty in vein grafts and stenting in carotid arteries. The study, published in the March 2 issue of the Journal of the American Medical Association, found that the devices were successful in removing debris from the arteries in angioplasties during heart attacks, ...

Promising therapies for haemophilia & heart disease

...ollaborators shows that the events leading to deep vein thrombosis are reduced. P-selectin inhibitors have also been shown to be anti-thrombotic in early human trials" Measurement of P-selectin levels in the blood stream may provide a new diagnostic tool to identify people at risk of heart disease and st...

New cell transplantation technique restores insulin production in diabetics

...und guidance to inject donor cells into the portal vein of diabetic patients, which is accessed through the skin," said co-author Saravanan Krishnamoorthy, M.D., radiology resident at the University of Minnesota in Minneapolis. "This is a safe method of cell transplantation that could potentially become a...

Carnegie Mellon develops non-invasive technique to detect transplant rejection at cellular level

...t involve threading a catheter through the jugular vein to the heart's right ventricle and snipping out several tiny pieces of tissue. A pathologist then tests the tissue to identify the presence of immune cells (such as macrophages) as well as other pathological changes in the transplanted heart tissue t...

Nanotechnology may find disease before it starts

...d a solution of silica nanoparticles into the tail vein of each mouse. They then anesthetized the animals and placed them on their backs on a warm imaging table. Rosol said that Liu and her team are working on creating biodegradable nanoparticles. For the purposes of this study, however, the researchers ...

Researchers develop portable 'vein finder' for faster, more accurate injections

...h Research Institute (GTRI). "Even if you locate a vein at the skin's surface, it's still easy to miss whe...pler technology isn't new, the novel aspect of our vein finder is the system's design, which makes it both portable and economical," says Peter Rogers, a pr...

Heparin prepared synthetically could replace animal-derived drug

...ing catheters, knee and hip replacements, and deep vein thrombosis. The annual worldwide sales of heparin are estimated at $3 billion. "We have synthetically prepared heparin in quantities large enough for use in human medical treatments by engineering recently discovered heparin biosynthetic enzymes," s...

New device could cut chemotherapy deaths

...of injecting the chemical into a cancer sufferer's vein so that it is carried around the body. As well as reducing the side-effects, the new drug delivery vehicle, known as Fibrasorb, could also cut the numbers of patients who die from the effects of chemotherapy because they need such high doses to tack...

UF scientists test improved gene therapy method for hereditary heart conditions

...ng corrective genes with a single injection into a vein holds promise for long-lasting treatments of hered...can deliver a much lower dose of the vector into a vein like any other drug, and the corrective gene collects in the heart." Scientists say gene therapy l...

Tamoxifen for breast cancer prevention does not benefit most women

...fects, including cataracts requiring surgery, deep vein thromboses, endometrial cancer and stroke. Women taking tamoxifen, if they do develop breast cancer, are also more likely to develop an estrogen receptor-negative tumor, which has a worse prognosis. (Cancers prevented by tamoxifen are mostly estrogen...

DOE JGI finishes 100th microbial genome

...NA sequencing has opened a particularly productive vein to mine in exploring and expanding the frontier of microbiology. Especially where, through conventional culture methods, we are unable to shed light on the metabolic profiles of these microorganisms and their environmental implications, DNA sequencin...

Researchers offer clues to how leaves patterns are formed

...However, the theory argued that in each individual vein auxin could only run one way at any given time, ma...s and watch how auxin was being transported during vein formation. Thanks to this approach, the team identified cells within individual veins that transport...

Study shows pine bark naturally decreases severe chronic venous insufficiency

...ling can lead to dangerous conditions such as deep vein thrombosis (DVT). Previous studies have shown Pycnogenol® to be effective in encouraging improved circulation and helping to prevent travel-related DVT. Like varicose veins, spider veins also develop if edema is left untreated. "Chronic venous ins...

Jefferson scientists find high glucose before surgery raises risk of dangerous complications

... an increased risk of developing blood clots, deep vein thrombosis and even pulmonary embolism after surge...have raised levels due to pre-surgery stress. Deep vein thrombosis occurs in approximately two million Americans each year. Pulmonary embolism (PE), which c...

St. Jude announces breakthrough in eye cancer treatment

...therapy, a drug is infused into the body through a vein and then circulates, often causing toxic side effects that are especially challenging in children. After demonstrating that nutlin-3 is effective when applied directly to the eye, the St. Jude team modified the treatment by combining this molecule ...

Researchers show that veins stiffen as we age

...to structural changes, such as a thickening of the vein walls," Farquhar said. "Hardening of the arteries ...ercise training may blunt age-related increases in vein stiffness," Farquhar notes. In the second phase of the UD study, now under way, the research team ...

Students invent protective pouch to enhance cell therapy

... basically creating a small bio-reactor inside the vein to produce insulin and other proteins that the bod...ian can snake into the abdomen through the femoral vein in the leg. Using real-time imaging technology, an interventional radiologist can view and guide the...

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