On April 18, Nature published an article by scientists on "resurrecting" dead pig brains: The Yale University Medical College team put the dead pig brains into their BrainEX in vitro perfusion system, which they developed, and perfused them with simulated pulsatile blood flow at normal body temperature. During the six-hour perfusion period, they found that brain cell death was reduced, and even some cell functions were restored.

        BrainEX is an in vitro perfusion system designed and manufactured by Yale University researchers, specializing in the study of isolated brain. After 4 hours of death, the scientists connected some brain to the BrainEX device, and restored the blood flow of the pig brain blood circulation system through BrainEx. Even the capillaries were well perfused, and the blood vessels also responded to vasodilators.

        According to the researchers, studies have shown that cell death is gradual and some processes can be delayed, prevented or even reversed. But at the same time, they also stressed that this is far from the real "resurrection". EEG measurements showed that there was no whole brain activity related to consciousness, cognition or other higher-order brain functions during the whole experiment, that is, the pig brain did not regain consciousness. So it's too early to say "resurrect" the brain.