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Microfluidic device mimics tumor microenvironment, helps drug discovery

One of the challenges that cancer researchers face in designing new antitumor agents is that of predicting how drug molecules will behave in the complex microenvironment that surrounds a tumor. In particular, tumors create all sorts of chemical and physical barriers that limit how much drug is able to enter a tumor, let alone reach cells deep within a tumor.

23 Feb 2009

Statins can stimulate cardiac muscle cell regeneration, improve heart function

Statins, used widely to treat elevated cholesterol, have been shown to prevent progression of coronary narrowing and to have other beneficial effects on the heart, such as reducing inflammation, that are independent of cholesterol.

23 Feb 2009

Oxford Nanopore announces publication of DNA analysis paper

Oxford Nanopore Technologies ("Oxford Nanopore") today announced the publication of new research in Nature Nanotechnology, demonstrating accurate and continuous identification of DNA bases using nanopores.

From Oxford Nanopore Technologies 23 Feb 2009

Scientists identify lab-made proteins that neutralize multiple strains of seasonal and pandemic flu

Scientists have identified a small family of lab-made proteins that neutralize a broad range of influenza A viruses, including the H5N1 avian virus, the 1918 pandemic influenza virus and seasonal H1N1 flu viruses.

22 Feb 2009

Scientists mine drugs database for new diabetes treatment

Scientists funded by the Biotechnology and Biological Sciences Research Council have harnessed a new drug discovery tool to identify a new player in the body's insulin secretion process.

22 Feb 2009

Scientists identify human monoclonal antibodies effective against bird flu

Researchers at the Dana-Farber Cancer Institute (Dana-Farber), Burnham Institute for Medical Research (Burnham) and the Centers for Disease Control and Prevention (CDC) have reported the identification of human monoclonal antibodies (mAb) that neutralize an unprecedented range of influenza A viruses, including avian influenza A (H5N1) virus, previous pandemic influenza viruses, and some seasonal influenza viruses.

22 Feb 2009

Tiny flakes of silicon spotlight tumors, deliver drugs

Small is promising when it comes to illuminating tiny tumors or precisely delivering drugs, but many worry about the safety of nano-scale materials.

22 Feb 2009

Mice with "superhealing" powers provide clues to treating arthritis caused by traumatic injury

A strain of laboratory mice that has "superhealing" powers has been found to resist inflammation after a knee injury, and also to avoid developing arthritis at the injury site in the long term, according to researchers at Duke University Medical Center.

22 Feb 2009

Calculating protein and gene connections in a Parkinson's model

Researchers have created an algorithm that meshes existing data to produce a clearer step-by-step flow chart of how cells respond to stimuli.

22 Feb 2009

Stenting not necessary in late treatment of heart attacks

Two years ago, a major study found that many patients who receive delayed treatment for a heart attack do just as well with drugs alone as they do with drugs plus stents to prop open their blocked arteries.

20 Feb 2009

Robotic therapy may reduce stroke physical disability years later

Robot-assisted therapy may help stroke patients attain gains in their physical abilities long after the stroke, according to research presented at the American Stroke Association's International Stroke Conference 2009.

20 Feb 2009

Questions of ethics and quality cloud globalization of clinical trials

Top-tier U.S.-based pharmaceutical companies are moving their clinical trials overseas at warp speed, raising questions about ethics, quality control, and even the scientific value of their findings for people back in the U.S.

20 Feb 2009

Back from the dead twice

“I died twice,” says a teary-eyed DeWayne Lark, “If I didn't believe in miracles before, I believe in them now.”

20 Feb 2009

Inhibiting proteins may prevent cartilage breakdown in arthritis patients

Current arthritis medications can ease the pain, but stopping the progression of the disease requires more aggressive treatments: use of very limited available drugs or surgical intervention.

20 Feb 2009

FDA issues warning on psoriasis drug Raptiva (efalizumab)

The U.S. Food and Drug Administration has issued a public health advisory concerning three confirmed, and one possible report of progressive multifocal leukoencephalopathy (PML), a rare brain infection, in patients using the psoriasis drug Raptiva (efalizumab).

20 Feb 2009

Optimizing dosage of blood-thinning drug warfarin

In a large-scale study and an upcoming clinical trial, scientists supported by the National Institutes of Health address one of the trickiest issues in prescribing medicine - how to quickly optimize each patient's dosage of the common blood-thinning drug warfarin.

20 Feb 2009