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From the June 2009 Scientific American Magazine | 15 comments

Scientific American 10: Guiding Science for Humanity ( Preview )

Ten researchers, politicians, business executives and philanthropists who have recently demonstrated outstanding commitment to assuring that the benefits of new technologies and knowledge will accrue to humanity

By The Editors   

 

Once Nagy added the four genes, many of the mature cells converted into stem cells—after 20 days the investigators identified up to 48 separate stem cell colonies. The cells remained pluripotent even after they removed the genes again. In effect, Nagy and his colleagues had, for the first time, created the equivalent of embryonic stem cells that were uncontroversially ethical, safe and efficient—a significant advance toward being able to use them in patients in a clinic.  —Melinda Wenner

Barack Obama

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