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Toward a Kinder, Gentler Toxin
New research findings may ultimately broaden the beneficial uses of botulinum toxin and help protect people from its threat as an instrument of terrorism. More
WEB EXTRA: Putting the Brakes on Cancer
By reactivating p53—a renowned tumor-suppressor gene—researchers are stopping even advanced cancers in mice. More
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More Than Skin Deep
Adult skin stem cells can be used to produce embryonic stem cells, and thus any other tissue of the body. More
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Big Lessons from Small Brains
If a mouse brain can self-repair under certain conditions, can a new stem-cell approach for diseases such as Alzheimer's be far behind? More
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