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Bone Stem Cells Regenerate Bone, Cartilage in Mice

Osteoarthritis is a common condition seen in older people in which the tissue between joints becomes worn down, causing severe pain. In what could be an important development for people who suffer from it, U.S. researchers have isolated stem cells in adult mice that regenerate both worn tissue, or cartilage, and bone. For the past decade, researchers have been trying to locate and isolate stem cells in the spongy tissue or marrow of bones of experimental animals. The so-called...

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