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Tag: "spreading" at biology news

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

...ocused radiation therapy, designed to kill rapidly spreading cancer cells, also can destroy dynamic reproductive tissue. “I don’t think when you are faced with the reality that you may die, your fertility is the most important thing you are thinking or talking about, but there are a lot of women interested...

Mice with a migraine show signs of brain damage

...e initial throes of a phenomenon known as cortical spreading depression, which is thought to underlie many migr... Nedergaard studied a phenomenon known as cortical spreading depression, or CSD. The process is now considered by many scientists as the basis for some migraines...

Cancer patients monitor fatigue in real time

...Cancer can cause fatigue directly or indirectly by spreading to the bone marrow, causing anemia and by forming toxic substances in the body that interfere with normal cell functions. "People who are having problems breathing -- another symptom of some cancers -- may also experience fatigue." According to...

Survival of the rarest: Fruit flies shed light on the evolution of behavior

...as a rare strain of the flu has a better chance of spreading through a population that is already immune to more common strains of the virus. In this case, flies carry one of two versions of the foraging gene (either the "rover" or "sitter" type). Rover larvae move around more than sitter larvae while feeding ...

'Short-circuit' found in ocean circulation

... diffused by the circulation. Measurements of this spreading of the helium were used to deduce the ‘short-circuit? ...

Spud origin controversy solved

...vated potatoes first appearing in Europe and later spreading worldwide, were first recorded outside of the Americas in 1567 on the Canary Islands Archipelago. Today, scientists believe that the remnant landraces of these early potatoes still grow in on the Canary Islands. For years, researchers have debated...

Deconstructing brain wiring, one neuron at a time

...drawbacks. First, once inside the brain, they keep spreading from cell to cell without stopping. Second, they c...to use a virus that is missing a gene required for spreading across synapses but to provide the missing gene by some other means within the initially infected ce...

UCI scientists reconstruct migration of avian flu virus

...toral researcher and lead author of the study. "By spreading across a large area, the virus in essence can run multiple experiments in multiple locations, increasing the likelihood that it will mutate into a form that can be transmitted from human to human." Avian flu has been isolated almost exclusively am...

Nanotextured implant materials: blending in, not fighting back

...meter features strongly favored the adsorption and spreading of fibronectin, a protein that helps endothelial cells quickly coat the graft. Webster and Haberstroh's next step will be to test such nanostructured implants in live animals. If the same behavior holds true for materials placed in the body, the r...

Synthetic peptide targets latent papilloma virus infections

...the body, it would effectively stop the virus from spreading or generating warts, which can progress to cancer. "We're optimistic that this will work generally for many different genetic variants of human papilloma virus, though it's too early to say how many of the genotypes of this virus will respond," sai...

Study identifies risk factors for spread of respiratory infections in hospitals

... can spread from one patient to adjacent patients, spreading infection. Health care staff working while sic...ways of ventilating hospitals and clinics to avoid spreading of droplets," said Dr. Sung. "These findings are relevant not only for SARS," he concluded, "but ...

Out of Africa -- Bacteria, as well

...p continually increases." However, while man was spreading throughout the world, human populations had to repeatedly pass through what scientists call genetic bottlenecks: when a population shrinks, the gene pool also becomes smaller. These losses in genetic diversity linger, even when the population starts ...

Researchers discover new details about HIV-1 entry and infection

...le LC may harbor viable virus for some time before spreading it to other cells. These results reveal that it is necessary to consider mechanisms of viral entry into both CD4+ T and LC when searching for an effective way to interfere with infection through the vaginal epithelium. "Our findings provide exciti...

Whitefly spreads emerging plant viruses

A tiny whitefly is responsible for spreading a group of plant viruses that cause devastating disease on food, fiber, and ornamental crops, say plant pathologists with The American Phytopathological Society (APS). According to Judith Brown, professor of plant sciences at the University of Ariz...

Multiple malaria infection inhibits spread of parasite

...e in the mosquito. This prevents the parasite from spreading further. The presence of this immunity, the so-called transmission-reducing activity, is determined using a laboratory test. Van der Kolk discovered that people who are often infected with malaria could quickly acquire this immunity. He also found th...

Brown team finds crucial protein role in deadly prion spread

...4 acts like the wind, blowing apart the flower and spreading the seeds." Serio said that prions still multiply without fragmentation. However, she said, they do so at a much slower rate. So a drug that blocked the activity of Hsp104 could seriously slow progression of prion-related diseases. ...

Immunization rates hit record high in poor countries

...patent for a new method of cheaply and effectively spreading the fungus, and other similar "biological controls," that might beat back the adelgid without having to use expensive, toxic pesticides. They call their approach a "whey-based fungal micro-factory." Instead of growing fungi in a conventional facto...

Fungal factories may save hemlock forests

...patent for a new method of cheaply and effectively spreading the fungus, and other similar "biological controls," that might beat back the adelgid without having to use expensive, toxic pesticides. They call their approach a "whey-based fungal micro-factory." Instead of growing fungi in a conventional facto...

New UD technology removes viruses from drinking water

...technology could help prevent plant pathogens from spreading to other plants," she said. This UD research underscores the importance of interdisciplinary study in solving problems. "There are lots of exciting things you can discover working together," Jin said, smiling. "In this project, we all need each...

New approach could lower antibiotic requirements by 50 times

...tant Staphylococcus aureus) for example is rapidly spreading through hospitals, affecting more than 8,000 people in the UK every year. MRSA infection can lead to septic shock and death. ...

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