Tag: "escaped" at biology news

Researchers identify distinctive signature for metastatic prostate cancer

... have found that in some cancers, this pathway has escaped the normal control mechanisms and helped spur uncontrolled cell proliferation. These include cancers arising in organs of the gastrointestinal tract, such as the stomach, pancreas, esophagus and biliary tract. According to Beachy, since all these ca...

Songbirds escaped from Australasia, conquered rest of world

...a, as previously thought. Instead, their ancestors escaped from a relatively small area--Australasia (Australia, New Zealand and nearby islands) and New Guinea--about 45 million years ago and went on to populate every other continent save Antarctica. The study, led by Keith Barker of the University of Minnes...

Microscopy scans show how brain cells process energy

...." If that seems like a fine point, it is one that escaped scientists who developed PET and fMRI (functional magnetic resonance imaging) scanning technologies, as well as the medical personnel who use those diagnostic tools everyday without knowing exactly what the images represent. PET and fMRI are not reco...

Protein keeps cold fish from becoming frozen flounder, new study shows

...ver the past 30 years, but this antifreeze protein escaped everyone's notice. We're excited to have found it." The research, conducted with Christopher Marshall from Queen's Department of Biochemistry and Garth Fletcher from the Ocean Sciences Centre at Memorial University, is published today in the journal ...

Researchers find no safe place to sit in California tick-infested forest

... roller to pick up ticks that might otherwise have escaped their attention. All told, they found a total of 86 nymphal ticks on their bodies during the field trials. "Activities that were riskiest involved considerable contact with wood," said Steinlein. "Of the six behaviors we analyzed, sitting still on l...

Studies offer new insight into HIV vaccine development

...o weakened the virus. To model the transmission of escaped viruses between people, the team inoculated monkeys with the mutant virus strain. They discovered that most of the escape mutations were lost as the virus grew in the monkeys, often restoring original sequences that killer cells could recognize. ...

MBL scientists confirm evolutionary exception

...imals have evolved without sexual reproduction and escaped extinction. "We can now use belloid rotifers to test the theories about why sex is important," says Mark Welch. "Any good theory will now have to account for why the bdelloids are an exception." Note to Editors: The paper entitled "Cytogenetic evid...

RNA lariat may tie up loose ends to decades-old mystery of retrovirus life cycle

...icate. He surmises that the lariat structure had escaped detection for so long because of its transient nature. As the RNA is being transcribed into DNA, another part of the viral machinery "chews up" and destroys the RNA. Yeast cells are common laboratory models because they are structurally similar to h...

US develops lethal new viruses

...use or rabbit populations around the world if they escaped from a lab. However, this discovery also means some bioterrorists might be more tempted to use the same trick to modify a pox virus that infects humans. Such a disease, like anthrax, would infect only those directly exposed to it. It would not sprea...

Wolves are rebalancing Yellowstone ecosystem

... "The last period when aspen trees in Yellowstone escaped the effects of elk browsing to generate trees into the forest overstory was the 1920s," Ripple said, "which is also when wolves were removed from the park." But in at least one place - America's first national park - there is now cause for hope. Whi...

Scientists determine identity, cell locale and quantity of nearly all proteins in an organism

...y technical reasons, some of the proteins may have escaped successful tagging. Nonetheless, the project was easily thorough enough to net some striking findings. For example, the research revealed that of the 4,200 yeast proteins scrutinized, a full 527 of them -- or about one in eight - work in the energy-c...

Researchers urge caution over using ginseng in early pregnancy

...1 might have caused less severe abnormalities that escaped detection by their research assessments, which were designed to study only gross abnormalities. Ginsenoside Rb1 is only one of the ginsenosides in commercially available ginseng. More than 20 had been identified and previous studies had shown that di...

Salmon farms pose significant threat to salmon fisheries in the Pacific Northwest, researchers find

...wrote, noting that well over a million salmon have escaped from farms in Washington and British Columbia during the past decade. Most of the escapees were Atlantic salmon (Salmo salar), which, although not indigenous to the Pacific Northwest, are the main species raised in West Coast fish farms. "Escapees ar...

Trade Center debris pile was a chemical factory, says new study

...undant chlorine from papers and plastics, and then escaped to the surface as metal-rich gases. These then either burned or chemically decomposed into very fine particles capable of penetrating deeply into human lungs. In the trade-center air samples, Cahill identified four classes of particles that have bee...

Designer diseases

... by contrast, were only too happy when calicivirus escaped from a research station on Wardang Island in 1995. For them, the arrival of the Spanish virus would be a disaster, allowing rabbit populations to boom. If the potential for international conflict is obvious, the means of preventing it is not. None of...

Historical coral reef declines featured in this week's Science

...s demonstrate that no reef system in the world has escaped human disturbances. This result will resolve much scientific and reef management confusion on the causes of coral reef decline and will help advance the use of ocean use planning and zoning, particularly fishing prohibition zones or marine reserves, ...

Parasites prevent ants from protecting coffee plants

...ith phorids, and some caterpillars on those plants escaped ant attacks altogether. The system illustrates what ecologists call a trophic cascade, in which changes higher up in the food chain cascade or trickle down to affect organisms at lower levels. "Having phorids in the system cascades down to affect Azt...

Researchers discover strategy that shields HIV from destruction

... replicating virus population in infected patients escaped antibody recognition. "Before these findings, the role of antibodies in combating the virus that causes AIDS was not altogether clear. The new data suggest a more active role for HIV-1-neutralizing antibodies in virus containment and an unexpected m...

Pacific Northwest chemist wins national award for computer-based research

...eing stable and safe, but easily broken down if it escaped in the atmosphere. What became HFC 134A was on the market within 10 years. Dixon, who said he was enticed away from his boyhood interest in physics by "a great chemistry teacher in high school," received his undergraduate degree from the California I...

U of A scientist finds Atlantic salmon escapes higher than government reports

...ry Research Bulletin that outlines how he measured escaped farmed Atlantic salmon in a region of intense salm...1998, Volpe confirmed that Atlantic salmon, having escaped from B.C. salmon farms, had successfully reproduced in a Vancouver Island river. Multinational compa...

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(Date:4/14/2014)... orphaned by HIV/AIDS in South Africa may provide insight ... behavior issues in other areas of the world, which ... that could lead to successful interventions. , A ... United Nations mentions that due to the HIV/AIDS pandemic, ... African, children are at an increased risk for mental ...
(Date:4/14/2014)... A new study shows that moderate to severe ... risk of stroke, cancer and death. , Results of ... to severe obstructive sleep apnea were four times more ... times more likely to have a stroke (HR = ... (HR = 3.4), and 2.5 times more likely to ...
(Date:4/14/2014)... Dallas study involving serious youth offenders, the answer to one ... seven years: "How long do you think you,ll live?", According ... offending over time., Author Dr. Alex Piquero said the study ... of them offend at very high rates and commit more ... much later in life offend much less., "In a lot ...
(Date:4/14/2014)... with symptoms increasing dramatically during some of the most important ... has found. , Depressive symptoms increased on average by 68 ... young men, who were around 25 years old when they ... their children. The results of the study were published April ... is the first to identify when young fathers are at ...
(Date:4/14/2014)... Lower weight babies and babies who aren,t breastfed ... risk of developing chronic inflammation and related health ... study. , "There were good reasons to hypothesize ... inflammation in adulthood," says Thomas McDade (Northwestern University), ... in the Child & Brain Development program. "It ...
Breaking Medicine News(10 mins):Health News:Researchers identify children with emotional behavior difficulties 2Health News:Researchers identify children with emotional behavior difficulties 3Health News:Study links severe sleep apnea to increased risk of stroke, cancer and death 2Health News:UT Dallas study: Youth who fail to envision future commit more crimes 2Health News:Young dads at high risk of depression, too 2Health News:Low birth weight, less breastfeeding create later health risks 2
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