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Researchers identify immune dysfunction in melanoma patients

Researchers at the Stanford University School of Medicine have begun to shed light on why the human immune system isn't able to stop such cancers as melanoma, suggesting answers that could pave the way for better treatment of this often-fatal illness.

9 May 2007

Research sheds light on memory by erasing it

For years, scientists have studied the molecular basis of memory storage, trying to find the molecules that store memory, just as DNA stores genetic memory.

9 May 2007

Plant chemical harmine fights diabetes in mice

After screening hundreds of compounds for their effects on fat development, researchers have discovered that an ingredient found in some plants fights diabetes in mice without some of the side effects attributed to other antidiabetes drugs.

9 May 2007

Promising new target for brain tumor therapy

A drug that targets the body's immune cells may be effective in treating malignant brain tumors, according to a new study led by researchers from Duke's Preston Robert Tisch Brain Tumor Center.

9 May 2007

Novel therapies to prevent metastasis

In a study that could point to novel therapies to prevent cancer spread, or metastasis, researchers at the University of California, San Diego (UCSD) School of Medicine have targeted a sugar that supports blood vessel growth in the tumor.

8 May 2007

Molecule that destroys bone also protects it

An immune system component that is a primary cause of bone destruction and inflammation in autoimmune diseases such as rheumatoid arthritis actually protects bone in the oral cavity from infectious pathogens that play a major role in periodontal disease in humans, research at the University at Buffalo has shown.

7 May 2007

New vitamin extends lifespan in yeast cells

Imagine taking a vitamin for longevity! Not yet, but a Dartmouth discovery that a cousin of niacin prolongs lifespan in yeast brings the tantalizing possibility a step closer.

4 May 2007

Gene-for-gene interactions help bacteria kill their host

Scientists have discovered that a cousin of the plague bacterium uses a single gene to out-fox insect immune defences and kill its host.

4 May 2007

Nitric oxide may be the key to why specific drugs for heart failure or asthma lose their effectiveness over time

A naturally occurring molecule in the body appears to control whether certain medications, such as beta adrenergic receptor agonists used in acute heart failure or in inhalers for asthma, lose their effectiveness over time.

4 May 2007

New hope for patients with premature aging condition progeria

There is renewed hope for treatment of a rare genetic condition that causes rapidly accelerated aging and leads to an average life expectancy of 13 years.

4 May 2007

Scientists film pairs of molecules during recognition process

The body is an almost perfect machine. For it to function properly, each individual component, that is each molecule, must reliably fulfill its specific function. Each molecule must thus "recognize" other molecules and work with them.

4 May 2007

Cause of gender differences in high blood pressure and related kidney disease

While men and women both get high blood pressure and related kidney disease, the path to get there is shorter, steeper and just different for men, researchers say.

4 May 2007

BioMarin starts phase 2a study of 6R-BH4 in sickle cell disease

BioMarin Pharmaceutical has announced that the first patient has initiated treatment in the Phase 2a clinical study of 6R-BH4 (sapropterin dihydrochloride) for the treatment of sickle cell disease (SCD).

4 May 2007

New way to target and potentially treat tumors

Research teams at Yale University and the University of Rhode Island have demonstrated a new way to target and potentially treat tumors using a short piece of protein that acts like a nanosyringe to deliver tags or therapy to cells, according to a report in the Proceedings of the National Academy of Sciences.

2 May 2007

Expression pattern of microRNA may be useful in differentiating between chronic pancreatitis and pancreatic cancer

Pancreatic cancer is a lethal disease, with the annual deaths nearly equaling the incidence of 33,000 in the United States, according to background information in the article.

2 May 2007

Variants of two genes involved in the inflammatory system linked to cognitive decline after heart surgery

Duke University Medical Center researchers believe their findings could help physicians identify patients at risk of suffering mental decline after heart surgery and raises the possibility that these patients could be treated with drugs that are known to dampen the inflammatory response.

2 May 2007

Two-photon absorption imaging of hemoglobin

In an advance that can potentially assist cancer diagnosis, a new optical technique provides high-resolution, three-dimensional images of blood vessels by taking advantage of the natural multiple-photon-absorbing properties of hemoglobin, the red-blood-cell molecule that carries oxygen throughout the bloodstream.

1 May 2007

Scientists find last unknown enzyme in the synthesis of vitamin C in plants

Vitamin C is possibly the most important small molecule whose biosynthetic pathway remained a mystery.

30 Apr 2007

Green tea may help prevent bone destruction in arthritis

In rheumatoid arthritis, a person's own immune system attacks the joints by activating the synovial tissue that lines the body's movable joints, causing inflammation, swelling, pain and eventually erosion of the bone and cartilage and deformation of the joint.

30 Apr 2007

Leptin shown to significantly influence breast cancer development

Being obese increases the risk of breast cancer in post-menopausal women, shortens the time between return of the disease and lowers overall survival rates.

30 Apr 2007