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Published on FierceBioResearcher (http://www.fiercebioresearcher.com)

Scientists discover a new aging, lifespan mechanism

By admin
Created Mar 25 2008 - 7:59am

Manipulating insulin levels raises the level of the master gene-regulating protein SKN-1, significantly prolonging the lives of microscopic worms in one study. That study could point the way to new therapies for aging and chronic ailments. SKN-1 controls what is called the Phase 2 detoxification pathway, a network of genes that defends cells and tissue against oxidative stress--damage caused by elevated levels of free radicals (byproducts of metabolism)--and various environmental toxins.

"The major implication is that we have found something new that affects lifespan and aging and an important new effect that insulin and/or a related hormone called insulin-like growth factor-1 may have in some tissues," T. Keith Blackwell, M.D., Ph.D., senior investigator at Joslin Diabetes Center and an associate professor of pathology at Harvard Medical School and a faculty member at the Harvard Stem Cell Institute, was quoted as saying. "The implications go far beyond diabetes."

- check out the release [1] for more information

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Source URL:
http://www.fiercebioresearcher.com/story/scientists-discover-a-new-aging-lifespan-mechanism/2008-03-25