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Ancient African exodus mostly involved men

Modern humans left Africa over 60,000 years ago in a migration that many believe was responsible for nearly all of the human population that exist outside Africa today.

21 Dec 2008

FDA approves Gleevec (imatinib mesylate) to prevent gastrointestinal stromal tumor

The U.S. Food and Drug Administration has approved Gleevec (imatinib mesylate) for a new indication – keeping cancer from growing in patients following surgical removal of a gastrointestinal stromal tumor or GIST.

21 Dec 2008

Rockefeller microbiologist tests safety of spiked eggnog

With one in every 20,000 eggs contaminated with Salmonella bacteria, drinking homemade eggnog can be something of a gamble. But an experiment designed to test whether the alcohol in spiked eggnog can kill the deadly bugs suggests that, in general, few bacteria survive in a mixture containing both raw eggs and 20 percent rum and bourbon.

21 Dec 2008

Researchers identify gene linked to inherited form of fatal lung disease

Researchers at UT Southwestern Medical Center have determined that a mutation in a gene known for its role in defending the lungs against invading pathogens is responsible for some inherited cases of a lethal lung disease affecting older adults. The same mutation may also be associated with lung cancer, the researchers said.

21 Dec 2008

Remote sensing helps tackle tropical disease schistosomiasis in southern China

Scientists are looking to outer space for help in their attempt to prevent new outbreaks of the tropical disease schistosomiasis in southern China.

18 Dec 2008

VistaGen, WARF sign license agreement for human embryonic stem cell technology

VistaGen Therapeutics and the Wisconsin Alumni Research Foundation (WARF) have signed a license for human embryonic stem cell patents for the development and commercialization of stem cell-based research tools.

18 Dec 2008

Two common biomarkers help predict stroke risk

Two common biomarkers have now been shown to improve the ability to predict who will suffer from a stroke.

18 Dec 2008

Scientists develop method for generating novel stem cells

The study, which appears in the December 18 online version of Cell Stem Cell and the January 2009 print edition of the journal, provides proof of principle that alternative sources of stem cells can be created.

18 Dec 2008

Sulfurous ping-pong in the urinary tract

Transfer of information is a basic property of biological systems. Common examples include transfer of genetic information or nerve impulses.

18 Dec 2008

Study looks at brain and movement planning

When you first notice a door handle, your brain has already been hard at work. Your visual system first sees the handle, then it sends information to various parts of the brain, which go on to decipher out the details, such as color and the direction the handle is pointing. As the information about an object is sent further along the various brain pathways, more and more details are noticed-in that way, a simple door handle turns into a silver-plated-antique-style-door-handle-facing-right.

18 Dec 2008

Stem cells may 'ignite' bowel cancer development

Cancer Research UK scientists have discovered for the first time that stem cells could be the root cause of bowel cancer, according to a study published in Nature.

18 Dec 2008

Stem cells and leukemia battle for marrow microenvironment

Learning how leukemia takes over privileged "niches" within the bone marrow is helping researchers develop treatment strategies that could protect healthy blood-forming stem cells and improve the outcomes of bone marrow transplantation for leukemia and other types of cancer.

18 Dec 2008

Researchers look at processes asbestos fibers use to trigger cancer in human cells

Ohio State University scientists believe they are the first in the world to study the molecular underpinnings of cancer by probing individual bonds between an asbestos fiber and human cells.

18 Dec 2008

Cellular reprogramming, the 'Breakthrough of the Year' according to AAAS

In its annual list of the year's top ten scientific breakthroughs, the journal Science has given top honors to research that produced "made-to-order" cell lines by reprogramming cells from ill patients.

18 Dec 2008

Next generation intermittent urinary catheters

Rochester Medical Corporation (NASDAQ:ROCM) today announced the introduction of Magic3(TM), its new line of intermittent urinary catheters.

18 Dec 2008

Ultrafine polishing with silica nanoparticles protects teeth

Clarkson University Center for Advanced Materials Processing Professor Igor Sokolov and graduate student Ravi M. Gaikwad have discovered a new method of protecting teeth from cavities by ultrafine polishing with silica nanoparticles.

18 Dec 2008

New understanding of ion channels in the body

A discovery by Canada-U.S. biophysicists will improve the understanding of ion channels, akin to little 'nano-machines' or 'nano-valves' in our body, which when they malfunction can cause genetic illnesses that attack muscles, the central nervous system and the heart.

18 Dec 2008

Patients with skin disease psoriasis need evaluation of coronary artery disease risk

According to new recommendations in the December 10 issue of The American Journal of Cardiology (AJC), published by Elsevier, new research is called for and patients with severe forms of the skin disease psoriasis should receive evaluation and possible treatment to reduce their risk of coronary artery disease (CAD).

18 Dec 2008

Racial differences in self-rated health at similar levels of physical functioning

When asked by health care professionals about their health, older African-American adults consistently report poorer health than whites of the same age do - even if both groups are functioning extremely well, a new study finds.

18 Dec 2008