Volume 7 Issue 332
Published - 14:00 UTC 08:00 EST 17-Dec-2005 
Next Update - 14:00 UTC 08:00 EST 18-Dec-2005

Editor: Susan K. Boyer, RN
© Vidyya.
All rights reserved.

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Cancer support cells may evolve, fuel tumor growth, study shows

University of North Carolina at Chapel Hill scientists have demonstrated in a living organism that cancers may cause surrounding supportive cells to evolve and ultimately promote cancer growth. more  

Gene variation affects tamoxifen's benefit for breast cancer

One of the most commonly prescribed drugs for breast cancer, tamoxifen, may not be as effective for women who inherit a common genetic variation, according to researchers at the University of Michigan and the Mayo Clinic. The genetic variation affects the level of a crucial enzyme that activates tamoxifen to fight breast cancer. more

New small RNAs found

Dr. Kathleen Collins and a graduate researcher in her lab at UC Berkeley have identified a second RNAi pathway in Tetrahymena thermophilia – introducing a heretofore unprecedented layer of complexity to small RNA biology in unicellular organisms. more  

Denying joint replacements based on prejudice...and is false economy

A decision by NHS trusts in Suffolk to deny replacement joints to obese patients seems to be based on prejudice or attribution of blame, argues a senior doctor in a letter to this week's BMJ. more

Post-Katrina: Lead in disturbed soil may pose heightened health risk 

Unsafe levels of lead have been found in soil and sediments left behind in New Orleans following Hurricane Katrina and could pose a heightened health threat to returning residents, particularly children, according to a new study published in the American Chemical Society's journal Environmental Science & Technology. In some soil samples collected from the area, lead levels were as much as two-thirds higher than what the U.S. Environmental Protection Agency considers safe, according to researchers at Texas Tech University. more

Pancreatic cancer linked to insulin resistance in male smokers  

A new study led by researchers at the National Cancer Institute (NCI), part of the National Institutes of Health, shows for the first time that male smokers with the highest insulin levels are twice as likely to develop pancreatic cancer as men with the lowest levels. more

iPod's popular earbuds: Hip or harmful?

Turn ‘em down and turn ‘em off. That’s the advice of Dean Garstecki, a Northwestern University audiologist and professor, when it comes to using those ever-present earbuds favored by iPod and MP3 music listeners everywhere. more

 

Hearing specialists recommend using MP3 devices, including iPods, for no more than about an hour a day and at levels below 60 percent of maximum volume/A>