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Tag: "invasive" at biology news

Tamoxifen for breast cancer prevention does not benefit most women

...tion, it has been shown to reduce the incidence of invasive breast cancer among high-risk women by up to 49 percent. However, tamoxifen is associated with significant adverse effects, including cataracts requiring surgery, deep vein thromboses, endometrial cancer and stroke. Women taking tamoxifen, if they ...

Nanowire arrays can detect signals along individual neurons

...rude: Micropipette electrodes poked into cells are invasive and harmful, and microfabricated electrode arrays are too bulky to detect activity at the level of individual axons and dendrites, the neuronal projections responsible for electrical signal propagation and inter-neuron communication. By contrast, ...

Antarctic Treaty Meeting moves to protect frozen continent from non-native species

...ntarctica ?the world's last great wilderness ?from invasive non-native species have been agreed at a meeting of Antarctic experts in Edinburgh. Scientists and policy makers at the Antarctic Treaty Consultative Meeting, which finished at Edinburgh International Conference Centre on Friday 23 June, agreed new ...

Speeding discovery of the 'human cancer genome'

...mouse melanomas that independently developed their invasive ability revealed just one consistently elevated protein, called Nedd9. To find out whether Nedd9 could play a role in skin cancer's spread, the researchers blocked the protein in both mouse and human metastatic melanoma cells. Cancer cells without...

Rice scientists make first nanoscale pH meter

...to be physically removed via biopsy ?a painful and invasive procedure ?and visually evaluated under a microsco... measure the pH inside the tumor with nothing more invasive than an injection. Halas's LANP team created the pH sensor using nanoshells, optically tuned nanopa...

Cincinnati surgeons report new treatment for often-fatal injury

...nati (UC) surgeons have developed a new, minimally invasive method for repairing a common and deadly form of a...eated--and potentially saved--with these minimally invasive techniques." Standard "open" treatment for this type of injury can work, says Dr. Giglia, but it pu...

U of MN uses robotic surgery techniques in cardiac cell therapy research

...to damaged heart tissue in pigs. Using minimally invasive robotic surgery equipment, researchers injected th...re, open surgery can be risky; finding a minimally invasive technique to deliver cell therapy to the damaged cardiac tissue would reduce the risk to patients," ...

The loss of a protein favors lung tumor growth

...h was reduced, independently of their anchoring or invasive capacity, two key characteristics for production of metastasis. Early detection Lung cancer is one of the major causes of death, along with cardiovascular diseases, both in Europe and in the U.S., due to the fact that it is generally detected at ...

Study shows hope for ridding lakes of clawed invader

...se of a rare victory in the war against introduced invasive species. Since 2001, the UW-Madison researchers, aided by a small army of undergraduate students and the Wisconsin Department of Natural Resources (DNR), has succeeded in significantly reducing the population of rusty crayfish in Sparkling Lake thr...

Single cell amoeba increases MRSA numbers 1000- fold

...tible to biocides and antimicrobials, and are more invasive than the same bacteria which have grown freely. Replication within amoebae may have the same effect on MRSA. Amoebae, as cysts, are often dispersed by air currents, providing another means of spreading any trapped bacteria. "We need more research i...

Tetracycline plus teeth equal gray smile

... teeth darkened by tetracycline stains. Typically, invasive as well as costly treatment options, such as veneers, crowns and bonding, served as the only treatment options to help these individuals hide such stains and boost their self-esteem. However, Kim L. Capehart, DDS, MBA, AGD member and clinician, wi...

Mayo Clinic researchers discover cancer cells may move via wave stimulation

...uire cancerous traits such as excessive growth and invasive movement that constitute metastasis. These waves are important for helping to keep these cancer-growth commands at bay. Studying human pancreatic tumor cells, the Mayo researchers found that the waves store up to half the activated Epidermal Growth ...

Marrow-derived stem cells deliver new cytokine to kill brain tumor cells, offer protection

...rk into human clinical trials. Gliomas are highly invasive tumors with poorly defined borders that intermingl...are especially challenging because of their highly invasive and migratory characteristics," said Keith L. Black, M.D., director of the Maxine Dunitz Neurosurgic...

Radiotherapy advance points way to noninvasive brain cancer treatment

...nts that stretch survival limits are exceptionally invasive surgeries to remove the tumor and radiation treatm...dolinium. The approach might some day lead to less invasive treatment and possibly a cure of this disease. "It's the most lethal cancer there is. The only good...

'Biobullets' fight harmful mussels

...developed a "biobullet" that could help control an invasive mollusk that has ravaged U.S. waterways for nearly two decades clogging water pipes, virtually wiping out some native mussels species and causing billions of dollars in industrial damage. The new microcapsules, which contain toxins that dissolve with...

Growth factor-promoting angiogenesis expressed in tumor cells and normal neurons

...so raises the disturbing possibility that standard invasive procedures such as surgical biopsies or partial tumor resections may be inducing a proangiogenic response, or trigger, within the brain," cautions Dr. Fine. ...

Invasive exotic plants helped by natural enemies

Although conventional wisdom suggests that invasive exotic plants thrive because they escape the natur...rgest general scientific organization. Each year, invasive exotic species cause an estimated $120 billion in damage in the United States, not to mention the un...

Outsmarting the smartie bug

...ease, such as ear and sinus infections, and rarer, invasive disease, such as pneumonia and meningitis. About o...ll be due to the pneumococcus. More significantly, invasive disease is a major cause of death: around 1 million people, mostly young children in developing coun...

Robot assisted surgery more accurate than conventional surgery

...e will be able to develop a new generation of less invasive procedures without the risks of error, providing faster recovery and better functional outcomes for patients." The study involved both surgeons and engineers from Imperial College, with medical robotics engineers designing the Acrobot prototype, and...

Exotic crab poised for widespread UK invasion

...y and or conditions become favourable. "With most invasive species, such as the grey squirrel, the problem is not recognised until it is too late to do anything and you can not eliminate it without taking drastic environmental measures. "This study shows there is a need for a monitoring system for the mit...

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