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Timothy syndrome provides clues about enzyme role in arrhythmias

A University of Iowa study provides insight into a calcium-sensing enzyme already known to play a role in irregular heartbeats and other critical functions.

12 Dec 2008

Researchers find tamoxifen's power comes from endoxifen

Mayo Clinic researchers have discovered that a chemical known as endoxifen appears to be the primary metabolite responsible for the effectiveness of tamoxifen in treating breast cancer, and that it works against cancer in an entirely unexpected way.

12 Dec 2008

Food you eat can immediately impact cognitive behavior

A new study from the psychology department at Tufts University shows that when dieters eliminate carbohydrates from their meals, they performed more poorly on memory-based tasks than when they reduce calories, but maintain carbohydrates.

12 Dec 2008

New understanding on how the brain controls onset of puberty

A team of scientists from the University of Cambridge and the University of Cukurova in Turkey have taken a major step to understanding how the brain controls the onset of puberty.

12 Dec 2008

Heart regenerates after infarction

Up until today scientists assumed that the adult heart is unable to regenerate. Now, researchers and cardiologists from the Max Delbrück Center for Molecular Medicine (MDC) Berlin-Buch and the Charité - Universitätsmedizin Berlin (Germany) have been able to show that this dogma no longer holds true.

12 Dec 2008

Gene therapy used to treat periodontal disease

Scientists at the University of Michigan have shown that gene therapy can be used to successfully stop the development of periodontal disease, the leading cause of tooth loss in adults.

12 Dec 2008

Exercise suppresses appetite by affecting appetite hormones

A vigorous 60-minute workout on a treadmill affects the release of two key appetite hormones, ghrelin and peptide YY, while 90 minutes of weight lifting affects the level of only ghrelin, according to a new study.

12 Dec 2008

Enzyme that mutates antibodies also targets cancer-causing gene

The human immune system is in a perpetual state of self-experimentation. It expertly mutates and shuffles the DNA of its own cells to evolve new defenses against the vast array of microbes that try to invade our bodies.

12 Dec 2008

Researchers capture never before seen undulations of "dancing chromosomes"

The rhythm of life may beat far deeper than anyone previously thought. And it may gyrate and pulse in a way that rivals the sensuous choreography of "Dirty Dancing."

12 Dec 2008

Men inherit tendency to have more sons or more daughters from their parents

A Newcastle University study involving thousands of families is helping prospective parents work out whether they are likely to have sons or daughters.

12 Dec 2008

Enzyme that mutates antibodies also targets a cancer-causing oncogene

Rockefeller University scientists have discovered that the same enzyme that enables the immune system's defensive creativity is also responsible for a particular genetic malfunction - a translocation of one piece of DNA to the wrong chromosome - that causes Burkitt's lymphoma.

12 Dec 2008

Amputees can experience prosthetic hand as their own

Scientists at Karolinska Institutet and Lund University in Sweden have succeeded in inducing people with an amputated arm to experience a prosthetic rubber hand as belonging to their own body.

12 Dec 2008

Mathematical models of adaptive immunity

More than five million people die every year from infectious diseases, despite the availability of numerous antibiotics and vaccines. The discovery of penicillin to treat bacterial infections, along with the development of vaccines for previously incurable virus diseases such as polio and smallpox, achieved great reductions in mortality during the mid-20th century.

11 Dec 2008

Decline in teen marijuana use stalls - trends in cigarette and alcohol use continues to fall

There are signs that the ongoing decline in teen marijuana use in recent years has stalled; however the downward trend in cigarette and alcohol use continues, according to the 2008 Monitoring the Future (MTF) Survey. Results were announced today at a news conference.

11 Dec 2008

An enzyme that mutates antibodies also targets a cancer-causing oncogene

11 Dec 2008

University at Buffalo driver simulation study targets high-risk teen drivers

Using the bells and whistles of a state-of-the-art entertainment arcade, a University at Buffalo Graduate School of Education project aims to improve the driving habits of teenagers at the very top of the risk pool, and at the same time bring child and parent together for a happier, better functioning family.

11 Dec 2008