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Tag: "invasive" at biology news

Fat stem cells being studied as option for breast reconstruction

...ncer survivors might one day avoid the prospect of invasive breast reconstruction surgery, opting instead for ...can Cancer Society, more than 214,000 new cases of invasive breast cancer will be diagnosed by the end of 2006. For women who require mastectomy, the loss of on...

MIT nanoparticles may help detect, treat tumors

...mble when they are exposed to proteases inside of invasive tumors," said Sangeeta N. Bhatia, M.D., Ph.D., associate professor of the Harvard-MIT Division of Health Sciences & Technology (HST) and Electrical Engineering and Computer Science (EECS). "When they assemble they should get stuck inside the tumo...

Fire ant-attacking fly spreading rapidly in Texas

..., originally from Brazil and Argentina, to control invasive fire ants without pesticides. The fly larvae develop inside the ants and kill their host. Dr. Ed LeBrun, a researcher at BFL, developed the new flytraps that allowed him to map the spread of the first species of phorid fly successfully introduced. ...

Researchers find that bumblebees' flower choice matters

...ng whether the inclusion of purple loosestrife, an invasive weed that chokes wetlands, will affect the seed production of monkey flower. She has set out the garden in a grid of numbered holes. In this way, she can rotate the kinds of potted plants that are dropped in each morning and the density of each sp...

3-D ultrasound scanner could guide robotic surgeries

...e being increasingly used for performing minimally invasive "laparoscopic" surgeries on the heart or other organs, Smith said. In such operations, surgeons work through tiny "keyhole" incisions, and the new scanner would provide surgeons a more realistic view of the organ they are working on. "All the techn...

MRSA vaccine shows promise in mouse study

...otics. So, generating protective immunity against invasive S. aureus has become an important goal." Previous vaccine attempts using killed or live attenuated bacteria, or selected bacterial subunits, produced, at best, only partial immunity. "For S. aureus vaccines to succeed," said Schneewind, "we need t...

Thermal imaging shatters arousal gender gap myth

...ik. "But compared to previous techniques involving invasive measures or electrodes, this is minimally invasive and the same measurements are used for men and women, which makes it very interesting that the data ...

Cutting calories slightly can reduce aging damage

...rove the quality of life than to have to resort to invasive procedures." In the study, which followed the rats over their lifespan, one group of animals ate as much food as they wanted and did not exercise, another group of animals exercised lightly and were fed slightly less than they would have eaten if al...

Species unique to tidal marshes face threats

...hes. They are also threatened by toxic wastes and invasive species. Greenberg and his coauthors argue for an expanded research program to try to understand how species will respond to these threats. BioScience publishes commentary and peer-reviewed articles covering a wide range of biological fields, with a...

Major initiative proposed to address amphibian crisis

...e habitat loss due to agriculture or urbanization, invasive species, and various fungal diseases have all been implicated. In viewing this issue, some biologists have called amphibians the "canary in the coal mine" - the first clear and sweeping biological example of environmental change, pollution and toxic...

Researchers unveil strategy for creating actively-programmed anti-cancer molecules

...200,000 U.S. women are diagnosed with new cases of invasive breast cancer each year and that more than 40,000 of these women will die of the disease-usually the end result of metastasis. The therapeutic use of monoclonal antibodies has expanded rapidly over the last several years precisely because of their ...

Research links protein to breast-cancer migration

...oid them will help develop new drugs that can kill invasive cells that have become resistant to standard treat...ancer mortality. "When breast-cancer cells become invasive they become less responsive to treatment and the disease becomes more difficult for a clinician to m...

Coming soon: 3-D imaging that flies 'through' and 'around' cancer

...t and characterize cancer, spare someone from more invasive medical procedures, lead to better disease detection rates of colon cancer, provide surgical guidance and detect which tumors may be easier to biopsy," detailed Andrew Quon, clinical assistant professor of radiology/diagnostic radiology at California...

Pak1 expression increases tamoxifen resistance in breast cancer patients

...that the presence of this protein may lead to more invasive breast cancer. Goran Landberg, M.D., Lund University in Malmö, Sweden, and colleagues examined Pak1 expression in 403 premenopausal women with breast cancer. The women participated in a clinical trial where they were randomly assigned to receive ...

Invasive species alter habitat to their benefit

...mental changes in northern Michigan wetlands where invasive cattails have taken hold. The cattails, they found...attail species: the native broad-leaf cattail; the invasive narrow-leaf cattail, which was introduced on the east coast in the early 19th century and eventually...

Mussels evolve quickly to defend against invasive crabs

... University of New Hampshire (UNH) have found that invasive crab species may precipitate evolutionary change i...paper is called "Divergent induced responses to an invasive predator in marine mussel populations." "It's the blending of ecological and evolutionary time," s...

Possible birthplace of malignant brain tumors identified

...ates replenishment of brain cells in adults causes invasive tumor-like growths in mice. Removing the abnormal stimulation causes the growths to regress--a finding the researchers said suggests a possible treatment for the lethal, aggressive brain tumors called malignant gliomas. Arturo Alvarez-Buylla and Er...

Bubbles go high-tech to fight tumors

...struction of surrounding tissue, without extremely invasive procedures, Bull said. The emboli must be delivered by a catheter placed into the body at the tumor site. Gas bubbles, on the other hand, allow very precise delivery because their formation can be controlled and directed from the outside, by a foc...

UC Davis researchers move biotechnology closer to replacing electronic pacemakers

... would provide a more permanent, reliable and less invasive alternative to implanted electronic devices. "Our ... nodes in pigs' hearts. This is the same minimally invasive technique cardiologists use in clinics to destroy the heart cells that cause abnormal electrical dis...

New genetic test for breast cancer

...r in women, with an estimated 235,000 new cases of invasive breast cancer expected in the United States and Canada in 2006. Nearly 140,000 of these women will have estrogen receptor-positive breast cancer that has not yet spread to the lymph nodes. The standard treatment is surgery to remove the tumor, pl...

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