Scientists at Yale Restored Cellular Functions In The Brains Of Dead Pigs

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  1. Arkain2K

    Arkain2K Si vis pacem, para bellum Double Yellow Card

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    "...and that, kids, was how the zombie apocalypse began at Yale's Pet Sematary".

    Scientists Restored Cellular Functions In The Brains Of Dead Pigs
    By Nell Greenfieldboyce | April 17, 2019

    [​IMG]
    The image on the left shows the brains of pigs that were untreated for 10 hours after death, with neurons appearing as green, astrocytes as red and cell nuclei as blue.
    The image on the right shows cells in the same area of brains that, four hours after death, were hooked up to a system that the Yale University researchers call BrainEx.


    The brains of dead pigs have been somewhat revived by scientists hours after the animals were killed in a slaughterhouse.

    The Yale University research team is careful to say that none of the brains regained the kind of organized electrical activity associated with consciousness or awareness. Still, the experiment described Wednesday in the journal Nature showed that a surprising amount of cellular function was either preserved or restored.

    The implications of this study have staggered ethicists, as they contemplate how this research should move forward and how it fits into the current understanding of what separates the living from the dead.

    "It was mind-blowing," says Nita Farahany, who studies the ethics of emerging technologies at Duke Law School. "My initial reaction was pretty shocked. It's a groundbreaking discovery, but it also really fundamentally changes a lot of what the existing beliefs are in neuroscience about the irreversible loss of brain function once there is deprivation of oxygen to the brain."

    The brain is extremely sensitive to a lack of oxygen and shuts down quickly. But researchers have long known that viable cells can be removed from post-mortem brains hours after death, says Nenad Sestan, a neuroscientist at the Yale School of Medicine in New Haven, Conn.

    Such cells can be studied in a lab dish, Sestan says, "but the problem is, once you do that, you are losing the 3D organization of the brain."

    He and some colleagues wondered whether it might be possible to study brain cells while leaving them in an intact organ. Doing so meant somehow supplying them with oxygen, nutrients and various other cell-protective chemicals.

    The scientists have spent the past six years developing a technique to do that, testing their methods on around 300 pig heads they obtained from a local pork processing center.

    "This really was a shot-in-the-dark project," says team member Stefano Daniele. "We had no preconceived notion of whether or not this could work."

    After deciding on the final version of their technology, which they call BrainEx, they did a detailed study using 32 pig heads. Daniele says that while at the slaughterhouse, he and fellow researcher Zvonimir Vrselja flushed the brains to clear out residual blood and to cool down the tissue.

    Back at the lab, they removed the brains from the pigs' heads and placed the isolated brains in an experimental chamber. The researchers hooked key blood vessels up to a device that pumped in a specially formulated chemical cocktail for six hours, starting about four hours after the pigs had been killed.

    These brains ended up looking dramatically different from pig brains that were left alone to deteriorate. "We found that tissue and cellular structure is preserved and cell death is reduced. In addition, some molecular and cellular functions were restored," Sestan says. "This is not a living brain, but it is a cellularly active brain."


    Read the rest of the report at:
    https://www.npr.org/sections/health...tore-some-function-in-the-brains-of-dead-pigs
     
    Last edited: Apr 17, 2019
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  2. USA!USA!

    USA!USA! Black Belt

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    GSP_37 Titanium Belt

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    But no consciousness was detected.
     
  4. Tycho Brah

    Tycho Brah You drink water, I drink anarchy Platinum Member

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    Turns out the pig was only using 10% of its brain.
     
  5. ScarfaceJr

    ScarfaceJr All praise honor & glory to the most High

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    Stop it science.
    You're doing too fucking much.
     
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    A.A. Riggs sweet ... sweet meat!

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