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Scientists Revived a Pig's Brain Nearly a Whole Hour After It Died
Scientists have revived activity in the brains of pigs up to nearly an hour after circulation had ceased.
Supervised by physician Xiaoshun He of Sun Yat-Sen University in China, a team of scientists has turned to the animal to try and understand the role of the liver in brain recovery after ischemia due to cardiac arrest. The longest interval that showed the most promise was 50 minutes after being deprived of blood: the brain restarted electrical activity, and was maintained in that state for six hours until the experiment was shut off. Remarkably, in brains that had been starved of oxygen for 60 minutes, activity only returned for three hours before fading, suggesting a critical interval in which resuscitation can be successful with the addition of a functioning liver.
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