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Immune cell age plays role in retinal damage in age-related macular degeneration

Studying a mouse model of age-related macular degeneration, the leading cause of blindness in older Americans, scientists at Washington University School of Medicine in St. Louis have found age is key in determining whether damaging blood vessels will form beneath the retina and contribute to vision loss.

2 Nov 2007

Researchers discover new gene responsible for Brugada syndrome

Researchers at the University of Pittsburgh School of Medicine have identified a new gene responsible for a rare, inherited form of sudden cardiac arrest, known as Brugada syndrome.

1 Nov 2007

Discovery of gene variant linked to prostate cancer in African Americans

Researchers report a newly identified genetic variation that is linked to higher incidence of prostate cancer in African American men.

1 Nov 2007

Harvard 'Brainbow' helps chart neural circuits

By activating multiple fluorescent proteins in neurons, neuroscientists at Harvard University are imaging the brain and nervous system as never before, rendering their cells in a riotous spray of colors dubbed a "Brainbow."

1 Nov 2007

Scientists to map lethal bacteria in three dimensions

A scientist slides on a pair of plastic 3-D glasses and an unearthly blue multi-armed creature -- an image right out of a sci-fi horror flick -- seems to leap out of the computer screen into the laboratory.

1 Nov 2007

New genetic variant associated with prostate cancer in African-Americans

Two tiny genetic variations may provide the best clues yet for finding more precise ways to estimate prostate cancer risk and improve screening and early detection for men of African descent, report researchers from the University of Chicago and the Translational Genomics Research Institute, Phoenix, AZ, in the December 2007 issue of Genome Research, published early online.

1 Nov 2007

ADH2 and ALDH2 are associated with esophageal cancer

As the seventh leading cause of cancer death worldwide, the occurrence of esophageal cancer varies by geographic area, ethnic group and gender.

1 Nov 2007

New model of esophageal cancer

In the November 1st issue of G&D, a team of scientists led by Dr. Anil Rustgi (UPENN) presents an innovative new model of esophageal cancer, which holds great promise as an experimental platform to investigate the etiology and possible treatment of this devastating disease.

1 Nov 2007

HIV arrived in U.S. from Haiti 10 years earlier than previously believed

The most widespread HIV subtype outside Africa likely emerged in Haiti in the 1960s and arrived in the U.S. a few years later -- about 10 years earlier than previously believed -- according to a study published Tuesday in the Proceedings of the National Academy of Sciences, the Los Angeles Times reports.

31 Oct 2007

Scripps design new type of vaccine that could one day be used in humans to block the onset of infection

In hopes of combating the growing scourge of antibiotic-resistant bacteria, in particular drug-resistant staph bacteria, a team of scientists from the Scripps Research Institute has designed a new type of vaccine that could one day be used in humans to block the onset of infection.

31 Oct 2007

Significant improvement over current test for human papillomavirus

Iowa State University researchers have developed a technology that detects a single molecule of the virus associated with cervical cancer in women.

31 Oct 2007

The role of growth factor in vertebrae formation

The Stowers Institute's Pourquié Lab has demonstrated the role of fibroblast growth factor (FGF) in the embryonic process of somitogenesis, an event required for vertebrae formation, in a paper posted to the Web site of the journal Development.

31 Oct 2007

Family ties determine who gets heart disease

The genetic family ties that bind brothers and sisters also link their risk for developing clogged arteries and having potentially fatal heart attacks, scientists at Johns Hopkins report.

31 Oct 2007

New brain marker predicts cognitive decline and the development of Alzheimer's disease

Duke University Medical Center researchers have used imaging technology to identify a new marker that may help identify those at greatest risk for cognitive decline and the development of Alzheimer's disease.

31 Oct 2007

Sensitivity to smells explained

Some people are oblivious to the odor in the locker room after a game, while others wrinkle their noses at the slightest whiff of sweat.

31 Oct 2007

How can some people live at high altitudes and thrive while others struggle?

The answer for Tibetans who live at altitudes around 14,000 feet is increased nitric oxide (NO) levels. High levels of NO circulate in various forms in the blood and produce the physiological mechanisms that cause the increased blood flow that maintains oxygen delivery despite hypoxia - low levels of oxygen in the ambient air and the bloodstream.

31 Oct 2007

Lithium commonly used to treat bi-polar disorder increases lifespan in Nematode worms

Nematode worms treated with lithium show a 46 percent increase in lifespan, raising the tantalizing question of whether humans taking the mood affecting drug are also taking an anti-aging medication.

31 Oct 2007

Stanford scientists find gene that gives dogs black fur

A discovery about the genetics of coat color in dogs could help explain why humans come in different weights and vary in our abilities to cope with stress, a team led by researchers from the Stanford University School of Medicine reports.

30 Oct 2007

AIDS first came to the U.S. from Haiti almost 40 years ago

According to the latest research, the AIDS virus invaded the United States from Haiti, sometime around 1969, it then flourished and spread worldwide

30 Oct 2007

Risk factors that may contribute to the onset of Amyotrophic Lateral Sclerosis

Researchers in Rensselaer Polytechnic Institute's Social and Behavioral Research Lab (SBRL) are leading a study to investigate potential environmental, lifestyle, and medical variables that may contribute to the onset of Amyotrophic Lateral Sclerosis (ALS).

29 Oct 2007