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Tag: "remove" at biology news

Imaging Lymph Nodes with Nanoparticles

...procedure are substantial,not least because it can remove the problem of different observersassessing data differently.And what is more, once the data have been collected and assessed it ispossible to reconstruct a virtual picture of the patient's lymph nodes,thus potentially allowing accurate surgical remo...

Gene therapy converts dead bone graft to new, living tissue

... calcium. In an average year, a healthy person may remove and rebuild 10 percent of his or her bone structure. This process of teardown and rebuilding is triggered in the dead bone when Schwarz paints it with the genetically modified virus. New blood vessels begin to grow around and into the bone splint, s...

Enzyme shown to help protect genomic stability

...e job of Ubp10, as identified in this study, is to remove ubiquitin from certain histones where ubiquitin is associated with gene activation and to maintain low levels of the ubiquitin molecule at those sites. Interestingly, Ubp10 appears to work similarly and in concert with another enzyme called Sir2, wh...

Purdue proves concept of using nano-materials for drug discovery

...ugs. These proteins act as tiny pumps that quickly remove chemotherapy drugs from tumor cells, making the treatment less effective. Cancer cells exposed to chemotherapy drugs produce a disproportionately large number of the pumps, causing the cells to become progressively more resistant to anticancer drugs....

First-ever Compounds To Target Only Metastatic Cells Are Highly Effective Against Breast, Prostate, And Colon Cancers

...oo many cases it's simply impossible to completely remove the tumor," Dr. Huang explained. "So recently the idea of targeting cell migration -- metastasis -- has become an alternative strategy that's gained a lot of interest among researchers." If compounds could be found that slowed or halted cancer sprea...

Introduced foxes transformed vegetation on Aleutian Islands from lush grasslands to tundra

... Efforts by the U.S. Fish and Wildlife Service to remove introduced foxes from the Aleutian islands have been largely successful. Seabirds are beginning to make a comeback on islands previously colonized by foxes, and in some places the vegetation has begun to look lusher. But it is likely to take decades ...

Implanted Devices Detect High-Risk Heart Failure Patients

... (digoxin), relax blood vessels (ACE inhibitors)or remove the excess buildup of fluid in the lungs (diuretics). Implantable devices are the latest options in preventing arrhythmias that can lead to sudden death, with CRT-Ds being the latest technology. CRT-Ds perform two main functions. First, the devices ...

Chemists identify immune system mechanism for methamphetamine binges

...cine-like reaction." Just as a vaccine is able to remove invading pathogens by using antibodies to the pathogen, antibodies to methamphetamine attack and begin to clear the drug, Janda says. If the antibodies prevent some of the drug from reaching its place of action in the brain's pleasure center, users m...

Transgenic plants remove more selenium from polluted soil than wild plants, new tests show

...burial. In contrast, they say that using plants to remove contaminants ? a process called phytoremediation -- provides one of the most cost-effective methods of cleaning polluted soil available. "Phytoremediation can help clean up the selenium, but the thing that's holding people up from using plants more ...

New lab technique identifies high levels of pathogens in therapy pool

...been installed that have been shown to capture and remove up to 95 percent of "Mycobacterium avium" aerosols. A 2004 study by Pace and his colleagues using the same molecular technique found that billions of microbes, in the form of "soap scum," can be found in a one-inch-square section of a normal home sh...

Chemicals in tattoo inks need closer scrutiny

...mpositions of tattoo inks. For example, surgery to remove tattoos is becoming more widespread, and not knowing the composition makes the procedure more difficult. "Once the components of a tattoo ink have been identified, doctors removing the inks can use their knowledge of the chemical characteristics of t...

Defenseless plants arm themselves with metals

...ions for the development of crops that may one day remove metal and other contaminants from the environment. "Our goal is to find the high-level regulator - the one gene or group of genes that turns a plant into a hyperaccumulator," said David Salt, associate professor of plant molecular physiology in Purd...

Nano-bumps could help repair clogged blood vessels

...eries to prop them open during or after surgery to remove dangerous plaque deposits from the vessels. The stents, which are made of titanium and other metals, enable the arteries to grow new tissue after vessel-clogging plaque deposits have been removed. A major problem, however, is that the body often perc...

Anammox bacteria produce nitrogen gas in oceans' snackbar

...iant whales. The newly discovered anammox bacteria remove ammonium from the ocean, which as a result can not...ox bacteria present at this depth is sufficient to remove the ammonium that rises up from deeper waters and the seafloor. A unique combination of microbiologi...

Chromosome Deletion Predicts Aggressive Neuroblastoma

...oblastoma are low risk, and resolve after surgeons remove the tumor. Other cases are more aggressive, and are more likely to resist initial treatment, or to cause a relapse. Identifying the correct risk level allows doctors to treat aggressive cancers appropriately, while not subjecting children with low-ri...

Marine sponge yields nanoscale secrets

...ean next to the UCSB campus, said Morse. "When you remove the tissue you're left with a handful of fiberglass needles as fine as spun glass or cotton. This primitive skeleton supports the structure of the sponge, and we've discovered how this glass is made biologically." The newly reported research describ...

Red delicious, Northern Spy apples have most antioxidants, chemists find

...oduction of LDL receptors in the liver, which help remove cholesterol from the blood. This mechanism is similar to that of statin drugs, researchers say. In March, these findings were presented at the ACS national meeting in San Diego. * Breast cancer. Rats exposed to a known carcinogen and then fed the hu...

Scientists generate patient-specific stem cells, Science study says

...ble cell types. Scientists must also find a way to remove the remaining animal components from the laboratory procedures. Currently, the procedure for isolating non-reproductive cells for the nuclear transfer method involves animal enzymes and serum. In a Science "Policy Forum" related to the team's latest...

SuperLigands - a database of ligand structures derived from the Protein Data Bank

...ble cell types. Scientists must also find a way to remove the remaining animal components from the laboratory procedures. Currently, the procedure for isolating non-reproductive cells for the nuclear transfer method involves animal enzymes and serum. In a Science "Policy Forum" related to the team's latest...

Future diabetes drugs may target new protein interaction

...e vast majority of proteins, only uses sirtuin1 to remove its "decorations," called acetyl groups. Most other proteins can have the groups plucked off by a number of different enzymes. "PGC1 is a 'clean' target for sirtuin1," says Puigserver. "If sirtuin1 isn't available, PGC1 becomes covered in acetyl gro...

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