Archive for 'Science'
Simulated gene therapy
Posted on 30. Apr, 2009 by admin.
First large-scale computer simulation of gene therapy
COLLEGE PARK, MARYLAND, April 29, 2009 — In a recent issue of The Journal of Chemical Physics, published by the American Institute of Physics (AIP), a group of researchers at the University of California, Berkeley and Los Alamos National Laboratory describe the first comprehensive, molecular-level numerical study of gene [...]
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Darwin in a test tube
Posted on 30. Apr, 2009 by admin.
Scientists at Scripps Research make molecules that evolve and compete, mimicking behavior of Darwin’s finches
As described in an article published this week in an advance, online edition of the journal Proceedings of the National Academy of Sciences (PNAS), the work demonstrates some of the classic principles of evolution. For instance, research shows that when different [...]
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Native Americans descended from a single ancestral group, DNA study confirms
Posted on 30. Apr, 2009 by admin.
DNA evidence shows that Native Americans and Greenlanders are more closely related to each other than to any other existing Asian populations, except those that live at the very edge of the Bering Strait
For two decades, researchers have been using a growing volume of genetic data to debate whether ancestors of Native Americans emigrated to [...]
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African-American teens’ perceptions of racial discrimination
Posted on 30. Apr, 2009 by admin.
A three-year study of African American youths’ perceptions of racial discrimination has found that many Black teens consider themselves victims of racial discrimination, and these perceptions are linked to how they feel about being Black, particularly their views of how the broader society sees African Americans.
The study, by researchers at the University of North Carolina [...]
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Matrix protein key to fighting viruses
Posted on 30. Apr, 2009 by admin.
Researchers from Durham University’s Centre for Bioactive Chemistry are developing methods that show how proteins interact with cell membranes when a virus strikes. Using their approach, the team hopes to find new ways to disrupt and disarm ‘enveloped viruses’ before they spread in our bodies.
Team members, Dr John Sanderson and Dr Paul Yeo from Durham [...]
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World’s largest DNA scan for autism uncovers new gene variant for disorder
Posted on 29. Apr, 2009 by admin.
Gene most active in brain regions critical to language, social behavior
UCLA scientists, in partnership with 30 research institutions across the country, have identified a new gene variant that is highly common in autistic children. And when researchers scrutinized the activity of the gene, known as CDH10, in the fetal brain, they discovered that it is [...]
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Gladstone scientists identify key factors in heart cell creation
Posted on 28. Apr, 2009 by admin.
Sequence of transcription factors may drive proces to repair damaged hearts
Scientists at the Gladstone Institute of Cardiovascular Disease have identified for the first time key genetic factors that drive the process of generating new heart cells. The discovery, reported in the current issue of the journal Nature, provides important new directions on how stem cells [...]
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Brain works best when cells keep right rhythms, new Stanford studies suggest
Posted on 28. Apr, 2009 by admin.
STANFORD, Calif. — It is said that each of us marches to the beat of a different drum, but new Stanford University research suggests that brain cells need to follow specific rhythms that must be kept for proper brain functioning. These rhythms don’t appear to be working correctly in such diseases as schizophrenia and autism, [...]
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Young dinosaurs roamed together, died together
Posted on 16. Mar, 2009 by admin.
A herd of young birdlike dinosaurs met their death on the muddy margins of a lake some 90 million years ago, according to a team of Chinese and American paleontologists that excavated the site in the Gobi Desert in western Inner Mongolia.
The Sudden sudden death of the herd in a mud trap provides a rare [...]
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