Volume 9 Issue 139
Published - 14:00 UTC 08:00 EST 20-May-2007 
Next Update - 14:00 UTC 08:00 EST 21-May-2007

Editor: Susan K. Boyer, RN
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Nanocomposite labeled cancer cells can be targeted and destroyed using lasers

A nanocomposite particle can be constructed so that it has a mix of properties that would not otherwise happen in nature. By combining an organic matrix with metallic clusters that can absorb light, it is possible to incorporate such particles into cells and then destroy those targeted cells with a laser. In a presentation at the NSTI Nanotech 2007 Conference, researchers describe work conducted at the NanoBiotechnology Center, Department of Radiation Medicine, Roswell Park Cancer Institute, Buffalo, NY and the University of Michigan, Ann Arbor, MI, regarding the creation and characterization of a dendrimer nanocomposite (DNC) matrix containing silver clusters that can be used to target and destroy melanoma cancer cells. more  

Nanomedicine opens the way for nerve cell regeneration

The ability to regenerate nerve cells in the body could reduce the effects of trauma and disease in a dramatic way. In two presentations at the NSTI Nanotech 2007 Conference, researchers describe the use of nanotechnology to enhance the regeneration of nerve cells. In the first method, developed at the University of Miami, researchers show how magnetic nanoparticles (MNPs) may be used to create mechanical tension that stimulates the growth and elongation of axons of the central nervous system neurons. The second method from the University of California, Berkeley uses aligned nanofibers containing one or more growth factors to provide a bioactive matrix where nerve cells can regrow. more

Genetic marker linked to aggressive prostate cancer

Northwestern University researchers have discovered that a recently identified genetic marker for prostate cancer is linked to a highly aggressive form of the disease. more  

NIH study tracks brain development in some 500 children across U.S.

Children appear to approach adult levels of performance on many basic cognitive and motor skills by age 11 or 12, according to a new study coordinated by the National Institutes of Health (NIH). more

Hexavalent chromium in drinking water causes cancer in lab animals  

Researchers announced today that there is strong evidence a chemical referred to as hexavalent chromium, or chromium 6, causes cancer in laboratory animals when it is consumed in drinking water. The two-year study conducted by the National Toxicology Program (NTP) shows that animals given hexavalent chromium developed malignant tumors. more

Sleep apnea patients have greatly increased risk of severe car crashes 

People with obstructive sleep apnea have a markedly increased risk of severe motor vehicle crashes involving personal injury, according to a study presented at the American Thoracic Society 2007 International Conference, on Sunday, May 20. more

AHRQ publishes landmark federal handbook on the use of patient registries

HHS’ Agency for Healthcare Research and Quality today released a new handbook that represents a groundbreaking federal initiative to help researchers and others use patient registries to evaluate the real-life impact of health care treatments. more

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Hexavalent chromium in drinking water causes cancer in lab animals