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Parasites that live inside cells use loophole to thwart immune system

St. Jude Children's Research Hospital scientists have discovered a mechanism by which intracellular pathogens can shut down one of the body's key chemical weapons against them: nitric oxide.

4 Nov 2008

Parasites that live inside cells use loophole to thwart immune system

St. Jude Children's Research Hospital scientists have discovered a mechanism by which intracellular pathogens can shut down one of the body's key chemical weapons against them: nitric oxide. The researchers found that the microbes block nitric oxide production by subverting the biochemical machinery used by immune cells called macrophages to produce the chemical.

3 Nov 2008

Important steps towards the development of a human vaccine against malaria

Every day 2,000 children die from malaria in Africa alone. The infection is transmitted from human to human by biting mosquitoes and remains one of the world's most devastating diseases. Despite many years of effort a vaccine is still not available but is urgently needed, if we are to make an impact on this enormous problem.

31 Oct 2008

Cancer requires support from immune system to develop, researchers report

Tumors that grow around nerves in a rare genetic disease need cooperation from cells from the immune system in order to grow, reports a team of scientists, including researchers from UT Southwestern Medical Center.

30 Oct 2008

Purple tomatoes the latest in the arsenal against cancer

British scientists have developed purple tomatoes which they believe may possibly help fight cancer.

27 Oct 2008

Genetically modified tomatoes rich in anthocyanins

Researchers from the John Innes Centre in Norwich, Great Britain, in collaboration with other European centres participating to the FLORA project, have obtained genetically modified tomatoes rich in anthocyanins, a category of antioxidants belonging to the class of flavonoids. These tomatoes, added to the diet of cancer-prone mice, showed a significant protective effect by extending the mice lifespan. The research has been published in the 26 October issue of Nature Biotechnology.

26 Oct 2008

Fatty acids may be the culprit in Alzheimer's

According to new research from the U.S. controlling the level of a fatty acid in the brain could help treat Alzheimer's disease (AD).

21 Oct 2008

Kinaxo partners with Boehringer Ingelheim

Kinaxo Biotechnologies GmbH announced today that it has entered into a two-year collaboration with Boehringer Ingelheim. Under the agreement Kinaxo will apply its new platform technologies to studies on drug mode of action and target identification. Financial details of the agreement were not disclosed.

13 Oct 2008

FDA licenses Kogenate FS to prevent joint damage in children with hemophilia A

The U.S. Food and Drug Administration has approved a new use for the blood product Kogenate FS to reduce the frequency of bleeding episodes and prevent joint damage in children with the most severe form of hemophilia.

12 Oct 2008

On the trail of a targeted therapy for blood cancer

Investigators from the Herman B Wells Center for Pediatric Research at the Indiana University School of Medicine are focusing on a family of blood proteins that they hope holds a key to decreasing the toxic effects of chemotherapy in children and adults.

12 Oct 2008

Ginkgo biloba may prevent brain cell damage after a stroke

Working with genetically engineered mice, researchers at Johns Hopkins have shown that daily doses of a standardized extract from the leaves of the ginkgo tree can prevent or reduce brain damage after an induced stroke.

12 Oct 2008

Discovery of important fat precursor cell

To understand where fat comes from, you have to start with a skinny mouse. By using such a creature, and observing the growth of fat after injections of different kinds of immature cells, Rockefeller University scientists have discovered an important fat precursor cell that may in time explain how changes in the numbers of fat cells might increase and lead to obesity.

5 Oct 2008

A DNA-based vaccine shows promise against avian flu

Though it has fallen from the headlines, a global pandemic caused by bird flu still has the United States' Centers for Disease Control and Prevention on high alert. Yet, to date, the only vaccines that have proven even semi-effective are produced in chicken eggs, take five to six months to prepare and act against a single variant of the H5N1 virus, which mutates incredibly quickly.

30 Sep 2008

Pain is not a symptom of arthritis, pain causes arthritis

Pain is more than a symptom of osteoarthritis, it is an inherent and damaging part of the disease itself, according to a study published today in journal Arthritis and Rheumatism.

29 Sep 2008

Muscle stem cell identity confirmed

A single cell can repopulate damaged skeletal muscle in mice, say scientists at the Stanford University School of Medicine, who devised a way to track the cell's fate in living animals. The research is the first to confirm that so-called satellite cells encircling muscle fibers harbor an elusive muscle stem cell.

17 Sep 2008

Phase I trial for new tuberculosis vaccine

This week, a new vaccine "VPM1002" has entered the clinical phase I trial in Neuss, Germany, where it is being tested for safety on voluntary subjects. VPM1002 is based on a vaccine that has been in use since 1921, and has been genetically engineered to prevent infection with tuberculosis bacteria much more effectively than its predecessor.

11 Sep 2008

Killing bacteria isn't enough to restore immune function after infection, researchers find

A bacterial molecule that initially signals to animals that they have been invaded must be wiped out by a special enzyme before an infected animal can regain full health, researchers at UT Southwestern Medical Center have found.

10 Sep 2008

Discovery of gene that could help develop HIV/AIDS vaccine

In an article published in the journal Science on Thursday, researchers announced that they have discovered a gene, called Apobec3, that might help in the development of an HIV/AIDS vaccine, Reuters Health reports.

9 Sep 2008

Framing the concept of a gene

Even scientists define 'a gene' in different ways, so it comes as little surprise that the media also have various ways of framing the concept of a gene, according to a new study appearing in the October 2008 issue of EMBO reports.

4 Sep 2008

Researchers find genetic proof on how osteoarthritis destroys cartilage

A team of orthopaedic researchers has found definitive, genetic proof of how the most common form of arthritis destroys joint cartilage in nearly 21 million aging Americans, according to a study published online Sept. 2 in the Journal of Bone and Mineral Research. The findings serve as an important foundation for the design of new treatments for osteoarthritis (OA), researchers said.

2 Sep 2008