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Nanoparticle system for imaging and delivering drugs to tumors

By melding magnetic and luminescent properties with an easily modified surface, a team of investigators at the National Research Council of Canada have created what could prove to be a highly versatile nanoparticle system for imaging and delivering drugs to tumors.

9 May 2006

Scientists assemble a complete viral coat around a gold nanoparticle

Using a short piece of DNA as a template, a team of investigators at North Carolina State University has assembled a complete viral coat around a gold nanoparticle.

9 May 2006

Discovery of gene that appears to play an important role in the onset of type 2 diabetes

In a painstaking set of experiments in overweight mice, scientists from the University of Wisconsin-Madison have discovered a gene that appears to play an important role in the onset of type 2 diabetes.

8 May 2006

Bacterial binding in the stomach

Scientists have determined that decay-accelerating factor (DAF), a protein found in epithelial cells in the stomach, acts as a receptor for the bacteria Helicobacter pylori. Blocking this interaction could lead to new drugs that reduce the risk of peptic ulcer disease or gastric cancer.

8 May 2006

MicroCT-based virtual histology

Utah and Texas researchers combined miniature medical CT scans with high-tech computer methods to produce detailed three-dimensional images of mouse embryos - an efficient new method to test the safety of medicines and learn how mutant genes cause birth defects or cancer.

8 May 2006

Urgent effort underway to learn how diabetes increases heart disease risk

A researcher at the University of Rochester Medical Center has won the 2006 Thomas R. Lee Career Development Award from the American Diabetes Association (ADA), which includes an $842,400 grant to study how diabetes dramatically increases risk for cardiovascular disease.

8 May 2006

Important insights into how cells regulate certain growth-proteins

Researchers here have discovered a new mechanism used by cells - and manipulated by retroviruses - to control the making of certain essential proteins, including some involved in cancer.

8 May 2006

Online infusion calculator and a computerized drug ordering system reduces medication errors in children

Two new studies from the Johns Hopkins Children's Center show that computerizing ordering of chemotherapy and other types of intravenous drug infusions for children greatly reduces the risk of potentially dangerous medical errors.

8 May 2006

Significant changes in tumor growth can be detected through short interval follow-up

These growths may have important clinical implications in the management of patients, enabling early discontinuation of potentially toxic chemotherapy drugs.

4 May 2006

The efficacy and safety of Rituximab in patients with active rheumatoid arthritis

Drugs aimed at suppressing inflammation-provoking cytokines--specifically those linked to T-cells--have improved the treatment of rheumatoid arthritis (RA), a chronic, inflammatory autoimmune disease. Still, the frequency of remission achieved by these biologic agents remains below 50 percent.

3 May 2006

Researchers pinpoint autism's genetic roots

By deleting a gene in certain parts of the brain, researchers at UT Southwestern Medical Center have created mice that show deficits in social interaction that are reminiscent of humans with autism spectrum disorders.

3 May 2006

Inhibiting cell process may give cancer drug a boost

A molecule that interferes with the internal scaffolding that shapes the cell may kill cancer cells, retard the growth of tumors and give a boost to a common chemotherapy drug, according to findings appearing in the May 3 issue of the European Journal of Cancer.

3 May 2006

Advocacy group has win in terminally ill fight for access to experimental drugs

The Washington Legal Foundation (WLF) and the advocacy group Abigail Alliance, have been successful in the U.S. Court of Appeals.

3 May 2006

Thousands of chickens culled in the UK to stop spread of bird flu

As many as 15,000 birds have now been slaughtered in Norfolk in the UK in an attempt to stop the spread of a strain of bird flu.

3 May 2006

Antidepressant suicide risk up five times for seniors

According to Canadian researchers seniors who are prescribed antidepressants such as Prozac, Paxil and Zoloft are almost five times more likely to commit suicide during the first month on the drugs than those given other medication to treat depression.

3 May 2006

Endocannabinoid system shows promise in combating obesity

As the obesity epidemic grows in the United States, the medical community is faced with the significant challenge of properly treating patients before complications such as heart disease arise.

3 May 2006

Varenicline could increase number who quit smoking

Smokers who try to quit using existing medications, such as nicotine patches or Zyban, are about twice as likely to succeed as those who don't use medication or are prescribed placebos during clinical trials.

3 May 2006

Scientists create leaner and meaner E. coli

By stripping the E. coli genome of vast tracts of its genetic material - hundreds of apparently inconsequential genes - a team of Wisconsin researchers has created a leaner and meaner version of the bacterium that is a workhorse of modern biology and industry.

3 May 2006

Current US drug safety system is moving toward a delay in drug approval

In the May 3 issue of the Journal of the American Medical Association, Brian L. Strom, MD, MPH, Professor of Public Health and Preventive Medicine and Chair of the Department of Biostatistics and Epidemiology at the University of Pennsylvania School of Medicine, analyzes the limitations of the current system of drug-safety monitoring and proposes a solution that addresses overly aggressive early marketing practices

3 May 2006

New study describes molecular basis of NeuroAIDS

Using multi-disciplinary analysis that included cognitive, neurophysiologic, virologic, and molecular techniques, the team found both a low-level viral infection in the brain and immune cells that had infiltrated the brain in order to protect against the virus.

3 May 2006