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Findings with lab mice may lead to novel cholesterol-lowering drugs against heart disease

Two people eat the same egg, cheese and ham muffin for breakfast, yet one absorbs significantly more cholesterol into his or her blood than the other. Why?
The answer, and all of its implications for combating heart disease, remains stubbornly hidden within our DNA. In recent genetic studies with lab mice, however, researchers at The Rockefeller University have begun to close in on the culpr

Rensselaer researchers have developed an automated system, called RPI-Trace3D, that can swiftly map capillaries in a live tumor. What used to take days of manually tracing the vessels, now takes two minutes. The diagnostic tool, in use at Harvard Medical School and at Northeastern University, is a boon to oncologists who aim to understand how blood vessels form in tumors.

For the first time, medical scientists can quickly and precisely measure blood vessel properties to quantify the effects

Neuroscientists trying to tease out the mechanisms underlying the basis of human sympathy have found that such feelings trigger brain activity not only in areas associated with emotion but also in areas associated with performing an action. But, when people act in socially inappropriate ways this activity is replaced by increased activity in regions associated with social conflict.

Understanding the neurophysiology of such basic human characteristics as sympathy is important because some peo

Cytomegalovirus, hidden in most people, begins to give up secrets of its stealth

Princeton scientists have taken an important step toward understanding a virus that infects and lies dormant in most people, but emerges as a serious illness in transplant patients, some newborns and other people with weakened immune systems.

The virus, called human cytomegalovirus, enters the bone marrow and can hide there for a lifetime. Until now, however, scientists had not been able to stud

Scientists are to go below ground in seven tropical countries to search for the largest source of untapped life left on Earth.

Experts know that, millimetres below the surface in the twilight, subterranean world, of the earthworm and the nematode, tens of thousands of new species of tiny organisms including bacteria, fungi, insects, mites and worms await discovery.

Scientists are also convinced that unraveling the secrets of how they operate may be the key to restoring the fe

Researchers in the Materials Sciences Division (MSD) of Lawrence Berkeley National Laboratory, working with crystal-growing teams at Cornell University and Japan’s Ritsumeikan University, have learned that the band gap of the semiconductor indium nitride is not 2 electron volts (2 eV) as previously thought, but instead is a much lower 0.7 eV.

The serendipitous discovery means that a single system of alloys incorporating indium, gallium, and nitrogen can convert virtually the full spectru