Scientists Speed Creation Of Stem Cells; South Korean Team Claims Cloning Breakthrough

Published: May 20, 2005

South Korean scientists have dramatically sped up the creation of human embryonic stem cells, growing 11 new batches that for the first time were a genetic match for injured or sick patients. It is a major advancement in the quest to grow patients' own replacement tissue to treat diseases. The same scientists last year were the first to clone a human embryo. Now they have improved, by more than tenfold, their efficiency at culling these master cells, thus making pursuit of therapeutic cloning more practical.

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