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Clearance of beta amyloid accumulation within neurons stops memory decline in mice

Researchers at UC Irvine have identified a trigger at the molecular level that marks the onset of memory decline in mice genetically engineered to develop brain lesions – in the form of plaques and tangles – associated with Alzheimer’s disease. The trigger is a protein called “beta amyloid” that accumulates within neurons in the mice’s brains. Although several researchers have studied the

Research by a University of Nottingham expert has shed new light on a genetic mystery that has its origins millions of years ago.

A study by Dr Angus Davison has helped to uncover new facts about the most common organic compound found on earth — a substance called cellulose. Cellulose is found in large amounts in all crops and plant life, making it one of the foundations of modern farming, human diet and the global economy.There is just one problem with it: most animals are unable to

Discovery points to new class of astronomical objects

Astronomers at Sweet Briar College and the Naval Research Laboratory (NRL) have detected a powerful new bursting radio source whose unique properties suggest the discovery of a new class of astronomical objects. The researchers have monitored the center of the Milky Way Galaxy for several years and reveal their findings in the March 3, 2005 edition of the journal, “Nature.”

Principal investigator, Dr. Scott Hyman, pr

An international team of astronomers using the world’s largest X-ray and optical telescopes have spotted the most distant massive object ever detected, a cluster of galaxies 9 billion light years distant from Earth.

The cluster of galaxies is so far away that the light detected by the team is much older than the Earth itself. The galaxy cluster, if it is even still there, would be at least 11 billion years old now. “By capturing this ancient, 9-billion-year-old light, we

In a new and novel study, scientists are looking to nature — specifically, to ants, bees and viruses — for ways to improve human collaboration during disaster relief efforts.

At the center of the scientists’ sights are a sub-group of their own species — specifically, civil engineers, who historically have had a limited role in such efforts, especially those involving critical physical infrastructures.

Supported by a five-year $2.37 million grant from the Nationa

Physicians have long been puzzled by a condition called intracranial arterial dolichoectasia, in which the larger arteries of the brain become elongated and misshapen. Typically, it has been considered a complication of atherosclerosis (“hardening of the arteries”), and not directly life-threatening. However, there is recent evidence that people with dolichoectasia are more likely to have aortic aneurysms, a potentially fatal weakening of the main artery that carries blood out from the heart