Aging Mechanisms

Study Offers Insight Into Mechanism Of Aging.

The CBS Evening News (6/13, story 6, 2:25, Pelley) reported, "Today researchers at the National Institutes of Health are reporting an important new clue as to why some of us age more rapidly than others." CBS (Andrews) added that research by NIH Director Dr. Francis Collins "on why these children [with progeria] age so rapidly is revealing the genetic root of why aging happens at all. Children like Zach are born with an excess of the cell-destroying protein called progerin. Dr. Collins learned we all have small amounts of progerin and progerin has an on switch." NIH Director Dr. Francis Collins was shown saying, "We've learned what the signal is that turns that on in you and me." Andrews continued, "Dr. Collins believes anti-aging therapies will be possible one day," adding "The discovery is changing the way many scientists view the very biology of how we get old." A text version of this segment is available on the network's website.

        WebMD (6/13, Doheny) reported that Collins said, "We have learned something fundamental about the way your cells and mine are programmed to have a limited life span," adding, "It looks like it is not just a passive process." The new research, published in The Journal of Clinical Investigation, examined "the interaction between the mutant protein known as progerin and telomeres." The researchers found "found that the same mechanism or pathways may help explain both the rare condition and normal aging."

        The Wall Street Journal (6/13, Marcus) "Health Blog" reported that while aging appears to be an active process, with progerin making sure old cells die, it still isn't known how the telomeres signal progerin production, how such signals could be stopped, and if stopping them would have negative side effects, such as cancer. Reuters (6/14, Steenhuysen) also covers this story.

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