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Gray Hair Signals Battered DNA-sciencenow

PostPosted: June 12th, 2009, 8:37 pm
by wolfhnd
Gray Hair Signals Battered DNA


If you’ve ever blamed your gray hair on stress, you weren’t far from the truth. Genotoxic stress--the kind that can damage a cell’s DNA--causes hair to whiten over time, according to a new study. The results challenge accepted ideas about how stem cells age and may eventually lead to new ways to prevent graying and treat the more serious conditions caused by genotoxic stress, such as cancer.

http://sciencenow.sciencemag.org/cgi/co ... 2009/611/2