By keeping the livers of Tibetan minipigs functionally alive, the researchers were able to extend the window of brain resuscitation.
Scientists in China have pulled off a remarkable feat worthy of Victor Frankenstein: reviving pigs’ brains up to 50 minutes after a complete loss of blood circulation. The macabre accomplishment could someday lead to advances in keeping people’s brains intact and healthy for longer while resuscitating them.
All of the pigs had blood flow to their brains stopped, but some were hooked up to a life support system that kept their liver’s circulation going. The scientists then tried to revive the pigs’ brains after a certain period of time using the same life support system. Afterward, the pigs were euthanized and compared to a control group of pigs that had their blood flow left alone.
Of course, this doesn’t mean that scientists can now return anyone back from the dead perfectly intact with just a little boost to their liver. There are many damaging bodily changes that occur soon after a cardiac arrest, not just those in the brain and liver. And certainly more research will have to be done to confirm the team’s conclusions that the liver is critical to restored brain function.
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