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Tag: "adding" at biology news

Agent slows aging in mice

...t to be highly toxic for people,” Miller cautions, adding that the Food and Drug Administration doesn’t evaluate the safety of such herbal remedies....

Studies to find better ways to preserve human eggs, ovarian tissue under way

...es and still get no ice formation,” says Dr. Song, adding that ice formation aside, it is difficult to thaw rock-solid tissue at room temperature in a matter of seconds, meaning the current approach could have extremely limited use. A study he published in March 2000 in Nature Biotechnology showed the ap...

Exploring the dark matter of the genome

...tend to become more abundant near the centromeres, adding up to hundreds of thousands or even millions of bases in length. In these "seas" of satellite DNA there are "islands" of moderate-length repeats totaling only tens or hundreds of kilobases, made up of transposons or fragments of transposons. In o...

In nature, proteins sweep up nanoparticles

...ial to control their mobility in the subsurface by adding constituents that drive aggregation,” says Banfield. The scientists also sought to understand the mechanism by which proteins promote nanoparticle aggregation. They found that the presence of cysteine, an amino acid that is a building block to mos...

How plague-causing bacteria disarm host defense

...cies could still be a threat today," said Navarro, adding that scientists had isolated an antibiotic-resistant strain of this species. In addition Y. pseudotuberculosis and Y. enterocolitica are big words for nasty, little bugs that cause what's commonly known as food poisoning. All three bacteria species...

'Virtual Patient' to simulate real-time organ motions for radiation therapy

...When used in conjunction with existing 3-D models, adding the fourth dimension of time could significantly improve the accuracy and effectiveness of radiation treatment for lung and liver cancers. X. George Xu, professor of nuclear and biomedical engineering, and Suvranu De, associate professor of mechan...

Human stem cell treatment restores motor function in paralyzed rats

...and enhance their therapeutic benefit,” Johe said, adding that the goal is to provide a significant gain in functional mobility of the patient’s legs. This study builds on Marsala’s previous work in rat models using human neuronal stem cells, published in October 2004 in the European Journal of Neuroscie...

Alien plants attack using 'resource conservation' as weapon, researchers say

...s with the thought in mind that we better consider adding species that are really resource efficient," Vitousek said. "And then we can hunt those down." ...

Anthrax paralyzes immune cells with lethal toxin, UF research shows

...that patients with anthrax bleed," Southwick said, adding that victims of inhalational anthrax often suffer hemorrhages in their lungs and lymph nodes. "No one understands why, and it could very well be due to paralysis of platelets." During and Southwick are currently looking for additional proteins target...

Dealing deadly cancers a knockout punch

... or reverse the growth of advanced cancers without adding harmful side effects," said Dr. Mettinger. ...

Cow protein aids in treatment of gastrointestinal disorder

...e American Journal of Gastroenterology, finds that adding a bovine protein called lactoferrin to the existin...,?says lead author Nicola de Bortoli, M.D., Ph.D., adding that “data suggest that antibiotic resistance is frequent and clinicians are realizing that use of a...

Leukemia drug turns mini-molecules up, cancer genes down

...aused the drop in Bcl-2 activity. They did this by adding additional amounts of the two miRNAs to leukemia c...shed a cause and effect relationship as before, by adding additional let-7 to untreated leukemia cells. "Overall," Garzon says, "our findings show that AT...

Scientists see DNA get 'sunburned' for the first time

... molecule. UV light excites the DNA molecule by adding energy, said Bern Kohler, associate professor of chemistry at Ohio State. Some exited energy states last a long time, and others a short time. The energy often decays away harmlessly, but occasionally it triggers a chemical reaction that alters the D...

New success in engineering plant oils

...KASII that normally elongates fatty acid chains by adding two carbon atoms. The longer 18-carbon chains are more likely to be acted on by enzymes that desaturate the fat. So the scientists hypothesized that if they could prevent the chain lengthening by reducing the levels of KASII, they could decrease the ...

UCI scientists reconstruct migration of avian flu virus

...igration of H5N1 through its evolutionary history, adding new details that identify the relative importance of the geographic and evolutionary advances the virus makes. From 192 samples obtained across Eurasia, the UCI team reconstructed the virus's geographic reach and evolution. The analysis shows that...

Scientists genetically engineer tomatoes with enhanced folate content

...m in many underdeveloped countries, however, where adding folic acid is impractical or simply too expensive. "There are even folate deficiency issues in Europe, where addition of folic acid to foods has not been very widely practiced," Gregory said. "Theoretically, you could bypass this whole problem by ...

Cambodian vulture nests offer hope for species

...he population. Chansocheat remains optimistic, adding "We have the backing of local people and of the Government. If we can find financial support to extend what we know is already a successful strategy, then we should be able to conserve these species forever." ...

MIT model helps researchers 'see' brain development

...t 42 points that shows only the coarsest folds. By adding more points, she created increasingly finer-grained domains of smaller, higher-resolution folds. Finally, Yu modeled biological growth using a technique recommended by Grant that allowed her to identify the age at which each type of fold, coarse o...

New details on how the immune system recognizes influenza

... antibody targets." Plans for the future include adding data on epitopes that are involved in autoimmune diseases and epitopes that trigger allergic and asthmatic reactions. Dr. Sette and his colleagues have also built numerous tools for analyzing and visualizing the data and for predicting immunity again...

Discovery could lead to better control of hemorrhagic fever viruses

...ore efficiently when iron levels are low, and that adding iron to cultured cells makes them less susceptible to infection. Choe notes that New World hemorrhagic fever outbreaks mostly occur in poor rural areas, where people are often deficient in micronutrients, including iron, possibly predisposing them to...

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