Bonn, 24th November 2010. Metformin, a drug used in type 2-diabetes might have the potential to also act against Alzheimer’s disease. This has been shown in a study from scientists of the German Center for Neurodegenerative Diseases (DZNE), the Univ…
Young children’s helpfulness is tempered when they see that the person they intend to help has harmed another person. But it also diminishes when they see that the object of their attention meant to harm another, even if no harm was done.
That’s t…
Neurons communicate via chemical transmitters which they store in the bubble-like synaptic vesicles and release as required. To be able to react reliably to stimulation, neurons must have a certain number of “acutely releasable” vesicles. With…
Atmospheric fine particles affect the Earth’s radiation balance by interacting with solar radiation and by participating in cloud formation. Biogenic volatile organic compounds are key players in new particle formation processes. Hence, terrestrial …
Air Force Office of Scientific Research-supported physicists at the University of California, Berkeley in collaboration with researchers from the Max Planck Institute of Quantum Optics and the U.S. Department of Energy’s Lawrence Berkeley National L…
“Please hold absolutely still”: This instruction is crucial for patients being examined by magnetic resonance imaging (MRI). It is the only way to obtain clear images for diagnosis. Up to now, it was therefore almost impossible to image moving …
The majority of rare diseases are hereditary. But despite significant progress in genome research, in most cases their exact cause remains unclear. The discovery of the underlying genetic defect is, however, a prerequisite for their definitive…
Pathogens make themselves feel at home in the human body, invading cells and living off the plentiful amenities on offer. However, researchers at the Max Planck Institute for Infection Biology, Berlin, together with colleagues at Harvard Unive…
The amount of gaseous mercury in the atmosphere has dropped sharply from its peak in the 1980s and has remained relatively constant since the mid 1990s. This welcome decline may result from control measures undertaken in western Europe and North America, but scientists who have just concluded a study of atmospheric mercury say they cannot reconcile the amounts actually found with current understanding of natural and manmade sources of the element.
Using a multiple-gene analysis technique, German researchers have gained new insights into specific genetic alterations that lead to congenital heart defects, according to a report in today’s rapid access issue of Circulation: Journal of the American Heart Association. The technique, called microarray analysis, allowed investigators to identify specific patterns of gene expression in the entire human genome associated with common types of congenital heart defects. They sought to demonstrate the feasibility of using gene array analysis to study congenital heart defects. But their findings could represent an early step toward developing effective strategies to improve the quality of life in children and adults with heart defects.
Researchers say they’ve successfully tracked a star racing around a dark mass at the center of our Milky Way galaxy, offering strong support for the theory that a black hole is at the center of our little corner of space. Astronomers at the Max Planck Institute for Astrophysics tracked the orbit of the closest known star to the black hole candidate Sagittarius A*, a dark mass 3,000,000 times the mass of the sun. Following the star for 10 years, they found that it does indeed orbit Sagittarius A*. Approaching the black hole’s maw, the star reaches its highest velocity, whizzing past it at 5,000 kilometers per second.