Video: The Reanimated Heart
Stripped of cells to leave behind a ghostly scaffold, this rat heart was reseeded with new muscle that allowed it to beat again.
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A Heart’s Second Life
As researchers study hearts they have stripped down to their underlying structure, they move closer to growing living, functioning versions.
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The Organ Builder
Joseph Vacanti has already engineered skin and bone, but what he really hopes is to grow whole, functional organs.
Second Opinion
Proto readers share their thoughts on veterinary medicine, medical journals and hospital mergers.
Age of Enlightenment
Light-activated genes, now illuminating brain circuitry in rodents and monkeys, may help solve mysteries of human disease.
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