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Night blindness is a new clinical symptom of Chagas disease

"This is a new observation, a new clinical symptom of Chagas disease," said Levin, head of the Laboratory of the Molecular Biology of Chagas Disease at the University of Buenos Aires, Argentina. Levin and colleagues report their findings in the March 2006, issue of the FASEB Journal.

1 Mar 2006

Hand-held device for detecting illegal and legal drugs

A real-time sensor for detecting cocaine - made with inexpensive, off-the-shelf electronics - has been developed by a team of researchers at the University of California, Santa Barbara.

1 Mar 2006

Ginkgo biloba reduces aggressive cancer risk in animal experiments

Researchers at Georgetown University Medical Center say they now have a clearer picture of how an extract from the leaves of the Ginkgo biloba tree reduces the risk of aggressive cancer in animal experiments.

27 Feb 2006

New molecule could help in treating hospital infections

The scientists replaced a single atom from the molecular structure of vancomycin aglycon, a glycopeptide antibiotic that attacks the bacteria by inhibiting cell wall synthesis, significantly increasing the drug's spectrum of activity.

24 Feb 2006

Discovery of molecule that may hold key to learning and memory

Independent research teams from Harvard Medical School and Children's Hospital Boston have identified a master protein that sheds light on one of neurobiology's biggest mysteries--how neurons change as a result of individual experiences.

23 Feb 2006

Oddly shaped DNA can cause DNA breaks in mammalian cells

When otherwise normal DNA adopts an unusual shape called Z-DNA, it can lead to the kind of genetic instability associated with cancers such as leukemia and lymphoma, according to a study by researchers at The University of Texas M. D. Anderson Cancer Center.

21 Feb 2006

New mechanism that regulates K-Ras - protein that plays an important role in cancer

Researchers have discovered a protein widely known to cause the out-of-control growth of cells can actually be manipulated to induce those cells to commit suicide, providing a novel target for the development of anti-cancer drugs, according to the results of a new study led by New York University School of Medicine researchers.

21 Feb 2006

Unexpected rheumatoid arthritis discovery

What makes joints in people with rheumatoid arthritis, and related conditions like Lyme disease or lupus, so susceptible to attack by the body's immune system, leading to painful flare-ups and deterioration? The answer may surprise you.

17 Feb 2006

Orexin's role in developing addiction

A molecule in the brain essential for wakefulness and appetite has been found to play a central role in strengthening the neuron connections that lead to addiction.

17 Feb 2006

Botox finds a use in cancer treatment

The cosmetic treatment Botox may have a new use as an adjuvant to cancer therapy, providing an open door for chemotherapy and radiation treatments, according to a study published in the Feb. 15 issue of Clinical Cancer Research.

17 Feb 2006

Purdue biologists visualize protein interaction that may initiate viral infection

Biologists at Purdue University have taken a "snapshot" of a Velcro-like protein on a cell's surface just after it attached to the dengue virus, a linkup thought to initiate the early stages of infection.

16 Feb 2006

Taking aim at one of mankind's most common diseases

A detailed structural picture of a molecule that plays a key role in activating the Epstein Barr Virus in human cells has now been obtained by researchers at the European Molecular Biology Laboratory (EMBL) and the Institute of Molecular and Structural Virology (IVMS), associated with the University Joseph Fourier and the CNRS, in Grenoble.

16 Feb 2006

Potential universal strategy for treating drug addiction

An international research team led by the University of Saskatchewan has discovered a signaling pathway in the brain involved in drug addiction, together with a method for blocking its action, that may point to a single treatment strategy for most addictions.

14 Feb 2006

Gene therapy cures depressed mice

Researchers in the U.S. say that deleting a specific gene in the brain of mice that have been conditioned to be depressed, has the same effect as antidepressants.

13 Feb 2006

Chink in cancer's armor

Much as the famed starship Enterprise would deploy a deflector shield to evade enemy attack, tumor cells are capable of switching on a molecular force field of their own to fend off treatments aimed at killing them. Now University of Florida researchers have found a chink in their armor.

13 Feb 2006

Gut protein protects against infection and intestinal breakdown

A protein that binds to bile in the small intestine may hold the key to preventing infection and intestinal breakdown in people with conditions such as obstructive jaundice or irritable bowel syndrome, researchers at UT Southwestern Medical Center have discovered.

12 Feb 2006

New DNA-based cell adhesion strategy

A new technique in which single strands of synthetic DNA are used to firmly fasten biological cells to non-biological surfaces has been developed by researchers with the Lawrence Berkeley National Laboratory (Berkeley Lab) and the University of California at Berkeley.

9 Feb 2006

Researchers define a new "first step" that initiates sepsis

A Mayo Clinic research team has challenged the accepted theory on the cause of sepsis -- a condition in which the body's cells generate fever, shock and often death. Sepsis is thought to occur when poisons from bacterial infection interfere with the cells.

9 Feb 2006

Link between dementia and cancer

By expressing a protein associated with Alzheimer's disease in the brain of the fruit fly, researchers have demonstrated an intriguing link between neuronal death and proteins previously associated with cancer.

7 Feb 2006

DNA end caps may lead to cancer treatments

The two ends of human DNA have different structures that are treated differently as a cell divides, UT Southwestern Medical Center researchers have found in a study that could help lead to cancer therapies.

7 Feb 2006