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May 09, 2005
Living to Eat Cheese Another Day
In a boost for a controversial theory of aging, mice engineered to make a human protein that sponges up cell-damaging molecules live 19% longer than other mice. The new research, published online today in Science, is consistent with the idea that these so-called free radicals are a cause of aging, but additional work is needed to clarify how the protein actually extends lives.
rsp10 May 9, 2005 03:04 PM