The brains could not think or sense anything, researchers stressed, but the work raises hopes for some medical advances and questions about the definition of death
Scientists restored some activity within the brains of pigs that had been slaughtered hours before, raising hopes for some medical advances and questions about the definition of death.
Such research might lead to new therapies for stroke and other conditions, as well as provide a new way to study the brain and how drugs work in it, researchers said. They said they had no current plans to try their technique on human brains.The 32 brains came from pigs killed for food at a local slaughterhouse. Scientists put the brains into an apparatus in their lab. Four hours after the animals died, scientists began pumping a specially designed blood substitute through the organs.
Sestan said researchers don’t know whether they could restore normal whole brain function if they chose that goal. If such consciousness had appeared in the reported experiments, scientists would have used anesthesia and low temperatures to quash it and stop the experiment, said study co-author Stephen Latham of Yale. There’s no good ethical consensus about doing such research if the brain is conscious, he said.
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