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Widespread antiviral drug use can accelerate the evolution of drug resistance in viruses

Influenza's ability to resist the effects of cheap and popular antiviral agents in Asia and Russia should serve as a cautionary tale about U.S. plans to use the antiviral Tamiflu in the event of widespread avian flu infection in humans, scientists say.

7 Jan 2009

Discovery of more efficient way to create induced Pluripotent Stem (iPS) cells

A Boston University School of Medicine-led research team has discovered a more efficient way to create induced Pluripotent Stem (iPS) cells, derived from mouse fibroblasts, by using a single virus vector instead of multiple viruses in the reprogramming process.

7 Jan 2009

Bird flu becoming more resistant to antivirals

A new University of Colorado at Boulder study shows the resistance of the avian flu virus to a major class of antiviral drugs is increasing through positive evolutionary selection, with researchers documenting the trend in more than 30 percent of the samples tested.

7 Jan 2009

Liquidia Technologies to collaborate with Abbott on siRNA therapeutics

Liquidia Technologies, Inc. announced today that it has entered into a collaboration and license agreement with Abbott to develop PRINT nanoparticles for the delivery of siRNA-based therapeutics. Liquidia's PRINT technology offers the ability to fabricate nanoparticles of precisely defined size, shape, surface chemistry, and composition, which offers the potential to develop safer and more effective therapies.

7 Jan 2009

New understanding of seizure behaviors and epilepsy

Two children have a seizure. One child never has another seizure. Twenty years later, the other child has a series of seizures and is diagnosed with epilepsy.

6 Jan 2009

Studies offer guide as protein interaction mapping comes of age

During the past 20 years, researchers have identified thousands of cell protein interactions, with the ultimate goal of inventorying all that occur within cells of various organisms - a comprehensive catalogue known as the interactome.

6 Jan 2009

Gene named scrawny keeps stem cells healthy

Stem cells are the body's primal cells, retaining the youthful ability to develop into more specialized types of cells over many cycles of cell division.

6 Jan 2009

People with Ala12 gene variant need to watch out for high fat in their diets

New evidence in mice bolsters the notion that a version of a gene earlier shown to protect lean people against weight gain and insulin resistance can have the opposite effect in those who eat a high-fat diet and are heavier, reveals a report in the January 7th issue of the journal Cell Metabolism, a Cell Press publication.

6 Jan 2009

Discovery of new way for bacteria to transfer toxic genes to unrelated bacterial species

In a laboratory experiment, the scientists from NYU School of Medicine discovered that Staphylococcus aureus, a notorious bacterium that causes toxic shock syndrome and many other types of infections and is the scourge of hospitals nationwide due to its growing antibiotic resistance, could co-opt viral parasites as secret pipelines for transferring toxin genes to vastly different bacterial species.

6 Jan 2009

Biologist finds plant polymerases IV and V are really variants of polymerase II

It's a little like finding out that Superman is actually Clark Kent. A team of biologists at Washington University in St. Louis has discovered that two vital cellular components, nuclear RNA Polymerases IV and V (Pol IV and V), found only in plants, are actually specialized forms of RNA Polymerase II, an essential enzyme of all eukaryotic organisms, including humans.

6 Jan 2009

Stem cells from human testes can change into other body tissues

Scientists at the Stanford University School of Medicine and at UC-San Francisco have succeeded in isolating stem cells from human testes.

5 Jan 2009

Metadherin gene linked to metastasis of breast cancer

A team of researchers at Princeton University and The Cancer Institute of New Jersey has identified a long-sought gene that is fatefully switched on in 30 to 40 percent of all breast cancer patients, spreading the disease, resisting traditional chemotherapies and eventually leading to death.

5 Jan 2009

Scientists now able to differentiate between normal stem cells and cancer stem cells in humans

One of the current handicaps of cancer treatments is the difficulty of aiming these treatments at destroying malignant cells without killing healthy cells in the process.

5 Jan 2009

New insight into critical molecular mechanisms involved in aggressive childhood cancer

A new study reveals critical molecular mechanisms associated with the development and progression of human neuroblastoma, the most common cancer in young children.

5 Jan 2009

Old Digitalis-based drugs show promise as a treatment for cancer

Digitalis-based drugs like digoxin have been used for centuries to treat patients with irregular heart rhythms and heart failure and are still in use today.

5 Jan 2009

Metadherin gene plays dual role in breast cancers with poor prognosis

A new study reveals that the metadherin gene (MTDH) plays a role in both cancer metastasis and resistance to chemotherapy.

5 Jan 2009

Antibodies take 'evolutionary leaps' to fight microbes

With cold and flu season in full swing, the fact that viruses and bacteria rapidly evolve is apparent with every sneeze, sniffle, and cough.

5 Jan 2009

Collagen VI protects brain cells against amyloid-beta proteins

Scientists from the Gladstone Institute of Neurological Disease (GIND), UCSF, and Stanford have discovered that a certain type of collagen, collagen VI, protects brain cells against amyloid-beta proteins, which are widely thought to cause Alzheimer's disease (AD).

5 Jan 2009

Discovery of new tumor suppressor for lung cancer

Cancer and cell biology experts at the University of Cincinnati (UC) have identified a new tumor suppressor that may help scientists develop more targeted drug therapies to combat lung cancer.

5 Jan 2009

A novel glioblastoma mouse model developed

Researchers at the Salk Institute for Biological Studies have developed a versatile mouse model of glioblastoma-the most common and deadly brain cancer in humans-that closely resembles the development and progression of human brain tumors that arise naturally.

5 Jan 2009