Daily non-political popular news in brief.
Chemical signature of manic depression discovered by scientists
02-05-2008 · EurekAlert!People with manic depression have a distinct chemical signature in their brains, according to a new study. The research, published today in the journal Molecular Psychiatry, may also indicate how the mood stabilisers used to treat the disorder counteract the changes in the brain that it appears to cause.
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- Scientists see DNA get 'sunburned' for the first time
02-01-2007 · EurekAlert!
For the first time, scientists have observed DNA being damaged by ultraviolet (UV) light. Chemists used a special technique to watch strands of DNA in the laboratory sustain damage in real time. They observed the most common chemical reaction among a family of reactions on the DNA molecule that are linked to sunburn, and discovered that this key reaction happens with astounding speed.
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- St. Louis University scientists identify chemical that triggers Parkinson's disease
10-30-2007 · EurekAlert!
Researchers at the St. Louis University School of Medicine have discovered the key brain chemical that causes Parkinson's disease -- a breakthrough finding that could pave the way for new, far more effective therapies to treat one of the most common and debilitating neurological disorders.
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- New depression model advances disease frontiers
11-09-2006 · EurekAlert!
For over 30 years, scientists believed that monoamines are low in the brain during major depressive episodes. However, no one ever found a convincing explanation for monoamine loss. Dr. Jeffrey Meyer and colleagues discovered that higher levels of MAO-A is the primary process that lowers monoamine levels. Having more MAO-A leads to greater breakdown of chemicals like serotonin. Based on these results, and work from previous publications, Dr. Meyer developed an advanced monoamine model of depression.
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- Truly sick or simply scared?
08-19-2007 · EurekAlert!
Scientists at Pacific Northwest National Laboratoryhave discovered a way to increase the sensitivity of test strips thatwill enable creation of a portable biosensor that can address a majorconcern associated with incidents involving chemical or nerve agents-- the need to quickly distinguish between individuals who have beenexposed and the "worried well."
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- HU scientist finds way to catch terrorists red-handed
10-31-2007 · EurekAlert!
A scientist at the Hebrew University of Jerusalem has discovered a way to literally catch terrorists red-handed.A new chemical spray detector developed by Professor Joseph Almog of the Hebrew University's Casali Institute of Applied Chemistry detects the homemade explosive urea nitrate. When sprayed on cotton swabs taken from the hands of a suspect, if they have had recent contact with urea nitrate, the chemical will turn a blood red hue.
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- Scripps research scientists discover chemical triggers for aggression in mice
12-06-2007 · EurekAlert!
A group of scientists at the Scripps Research Institute has discovered specific pheromone compounds responsible for eliciting aggressive behavior in mice. They have also identified the first step in the neurological pathway that triggers the aggressive response.
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- Alzheimer's prevention role discovered for prions
07-03-2007 · EurekAlert!
A role for prion proteins, the much debated agents of mad cow disease and vCJD, has been identified. It appears that the normal prions produced by the body help to prevent the plaques that build up in the brain to cause Alzheimer’s disease. The possible function for the mysterious proteins was discovered by a team of scientists led by Medical Research Council funded scientist Professor Nigel Hooper of the University of Leeds.
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- Scientists uncover link between ocean's chemical processes and microscopic floating plants
03-07-2007 · EurekAlert!
Scientists have discovered that increased levels of ocean acidity and carbon dioxide concentrations have resulted in unexpected changes in oceanic chemical processes. Their research results are published in the March 7, 2007, issue of the journal Geophysical Research Letters.
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- MLK scientist developed solder's 'holy grail'
05-29-2007 · Massachusetts Institute of Technology (MIT)
As a professor of mechanical engineering at Yale, Ainissa G. Ramirez discovered a universal solder, sought by researchers for decades. Ramirez is also dedicated to introducing middle-school kids to scientists through her 'Science Saturdays' program.
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- Bio-inspired assembly of nanoparticle building blocks
11-27-2006 · EurekAlert!
Rice University chemists have discovered how to assemble gold and silver nanoparticle building blocks into larger structures based on a novel method that harkens back to one of nature's oldest known chemical innovations -- the self-assembly of lipid membranes that surround all living cells. The research appears in the Nov. 29 issue of the Journal of the American Chemical Society. It could help scientists design everything from better catalysts to potent new anti-cancer drugs.
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