ScienceDaily Top Science Headlines
for Sunday, January 3, 2010
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Tasmanian devil facial tumor disease: Nervous culprit found (January 3, 2010) -- Cells that protect nerves are the likely origin of the devil facial tumor disease that has been devastating Australia's Tasmanian devil population, an international team of scientists has discovered. ... > full story
Scientists identify DNA that regulates antibody production (January 3, 2010) -- Performance enhancers are the currency of a competitive society. But there's one that we have always had: For millions of years, segments of our DNA have improved the performance of our genome, revving up protein production at those times we need it most. New research now show that these genome enhancers regulate how our bodies make germ-fighting antibodies, molecules that keep savvy viruses and bacteria at bay. ... > full story
Small changes in protein chemistry play large role in Huntington's disease (January 3, 2010) -- Investigators studying the toxic protein at the root of Huntington's disease have found that small biochemical changes to the protein have a large effect on its toxicity. These changes could be exploited or mimicked to develop a drug treatment for Huntington's. ... > full story
Molecular anchor links the two inheritable diseases Fanconi anemia and Bloom's syndrome (January 3, 2010) -- A new study establishes a molecular link that bridges two rare inherited disorders and explains why these diseases result in genetic instability. The research may lead to a better understanding of the complex mechanisms that enable cells to repair damaged DNA. ... > full story
Fungus contaminant in corn, peanuts, soybeans: Chlorophyll effective against aflatoxin (January 3, 2010) -- A new study has found that chlorophyll and its derivative chlorophyllin are effective in limiting the absorption of aflatoxin in humans. Aflatoxin is produced by a fungus that is a contaminant of grains including corn, peanuts and soybeans; it is known to cause liver cancer -- and can work in concert with other health concerns, such as hepatitis. ... > full story
The Skinny On 'Lean' Education (January 3, 2010) -- Educators should learn from the "Just-In-Time" and "Lean" production techniques used by the automotive industry if they are to add value to the student experience as quickly and effectively as possible. ... > full story
How the Moon gets its exosphere (January 2, 2010) -- Several decades ago scientists discovered that the Moon, long thought to have no atmosphere, actually does have an extremely thin exosphere. Scientists generally believe that the ions that make up the lunar exosphere are generated at the Moon's surface by interaction with solar photons, plasma in the Earth's magnetosphere, or micrometeorites. However, scientists have been uncertain about which processes are the main contributors of lunar exosphere ions. ... > full story
High fat diet increases inflammation in the mouse colon (January 2, 2010) -- Colorectal cancer, the third most common type of cancer worldwide, has been linked to an increased prevalence of the Western diet: one high in fat and low in fiber, vitamin D and calcium. Now, scientists have shown what happens to colon tissue when mice are fed such a diet: an inflammatory response that could be the trigger for carcinogenic processes. ... > full story
Imaging study shows HIV particles assembling around genome of infected cell (January 2, 2010) -- HIV is a wily and lethal replicator. In less than 25 years, it's killed more than 25 million people. Scientists are exploring exactly how this virus reproduces because they would like to find a way to abort the process. Now, just two years after scientists witnessed the birth of a single HIV particle in real time, the same team has zoomed in for a closer look at how the virus packages its genetic material as it assembles beneath the surface of an infected cell. ... > full story
Use of telemedicine for ICU patients not linked with improvement in survival (January 2, 2010) -- Remote monitoring of patients in intensive care units (ICUs) was not associated with an overall improvement in the risk of death or length of stay in the ICU or hospital, according to a new study. ... > full story
Making payments via cell phones (January 2, 2010) -- New security technology allows people to make payments via mobile phones. The technology is designed to work in almost all situations: person to person, in a shop or restaurant, at a vending machine, online, or as part of a telephone conversation. ... > full story
Earlier bedtimes may help protect adolescents against depression and suicidal thoughts (January 2, 2010) -- New research finds that adolescents with bedtimes that were set earlier by parents were significantly less likely to suffer from depression and to think about committing suicide, suggesting that earlier bedtimes could have a protective effect by lengthening sleep duration and increasing the likelihood of getting enough sleep. ... > full story
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