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Nevilledog

(51,185 posts) Wed Aug 3, 2022, 04:58 PM Aug 2022

A 'Reversible' Form of Death? Scientists Revive Cells in Dead Pigs' Organs.

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The Intellectualist
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"Although the pigs were not considered conscious in any way, their seemingly dead cells revived. Their hearts began to beat as the solution, which the scientists called OrganEx, circulated in veins and arteries."
Researchers said they hoped to increase the supply of human organs for transplant by allowing doctors to obtain viable organs long after death.
nytimes.com
A ‘Reversible’ Form of Death? Scientists Revive Cells in Dead Pigs’ Organs.
Researchers who previously revived some brain cells in dead pigs succeeded in repeating the process in more organs.
1:45 PM · Aug 3, 2022

https://www.nytimes.com/2022/08/03/science/pigs-organs-death.html

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https://archive.ph/5dr3I

The pigs had been lying dead in the lab for an hour — no blood was circulating in their bodies, their hearts were still, their brain waves flat. Then a group of Yale scientists pumped a custom-made solution into the dead pigs’ bodies with a device similar to a heart-lung machine.

What happened next adds questions to what science considers the wall between life and death. Although the pigs were not considered conscious in any way, their seemingly dead cells revived. Their hearts began to beat as the solution, which the scientists called OrganEx, circulated in veins and arteries. Cells in their organs, including the heart, liver, kidneys and brain, were functioning again, and the animals never got stiff like a typical dead pig.

Other pigs, dead for an hour, were treated with ECMO, a machine that pumped blood through their bodies. They became stiff, their organs swelled and became damaged, their blood vessels collapsed, and they had purple spots on their backs where blood pooled.

The group reported its results Wednesday in Nature.

The researchers say their goals are to one day increase the supply of human organs for transplant by allowing doctors to obtain viable organs long after death. And, they say, they hope their technology might also be used to prevent severe damage to hearts after a devastating heart attack or brains after a major stroke.

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