Free Republic
Browse · Search
News/Activism
Topics · Post Article

Skip to comments.

Is death still the end? Scientists spark life in brains of dead pigs
Irish Times ^ | 4/17/19

Posted on 04/17/2019 11:43:36 AM PDT by LibWhacker

Yale scientists say experiment opens new frontier in brain research 35 minutes ago Re-vitalised brains of dead pigs said to be ‘cellularly active’. Photograph: Damien Meyer/AFP/Getty

Re-vitalised brains of dead pigs said to be ‘cellularly active’. Photograph: Damien Meyer/AFP/Getty

An experiment has breathed life into the brains of pigs four hours after death. Scientists in the US restored circulation and cellular activity in 32 pig brains obtained from a meat-packing plant.

While there was no evidence of re-awakening awareness or consciousness, the re-vitalised brains were said to be “cellularly active”.

The study has implications that challenge long-held assumptions about the finality of death, and opens up a new frontier in brain research.

Lead scientist Prof Nenad Sestan, from Yale University, said: “The intact brain of a large mammal retains a previously under-appreciated capacity for restoration of circulation and certain molecular and cellular activities multiple hours after circulatory arrest.”

Cellular brain death is usually considered to be swift and irreversible.

Once the supply of oxygen and blood are cut off, the brain’s electrical activity and signs of awareness vanish within seconds.

A cascade of destruction then occurs leading to widespread degeneration from which there is no turning back.

However, Prof Sestan and his team noticed that small brain tissue samples routinely showed signs of cellular life returning, even when harvested hours after death.

To investigate further, they turned their attention to whole, intact brains from pigs processed for food production.

Chemical blood

In a ground-breaking experiment, a specially designed “chemical blood” preservative was circulated through the brains of dead animals that had been slaughtered four hours earlier.

The solution, warmed to normal body temperature, was perfused through the brains’ blood vessels for six hours.

During this time the scientists observed a reduction in cell death and the restored functionality of certain nerve, blood vessel and glial cells.

Glial cells are important brain “support cells” that hold neurons in place, feed them with nutrients and oxygen, provide insulation, and clean up the carcasses of dead cells.

The revived activity even included some synaptic function, the transmission of signals between neurons.

Details of the study are published in the latest issue of Nature journal.

Co-author Dr Zvonimir Vrselja, also from Yale, said: “At no point did we observe the kind of organised electrical activity associated with perception, awareness, or consciousness.

“Clinically defined, this is not a living brain, but it is a cellularly active brain.”

Lessons learned from the study could in future help doctors find ways to salvage brain function in stroke patients, or test the effectiveness of treatments designed to aid cellular recovery after injury, say the scientists.

The “BrainEx” system developed at Yale could also provide a powerful research tool.

Andrea Beckel-Mitchener, from the US National Institute of of Mental Health, which co-funded the research, said: “This line of research holds hope for advancing understanding and treatment of brain disorders and could lead to a whole new way of studying the post-mortem human brain.”

Any future studies involving human tissue or the possible revival of global electrical activity in “dead” animal brains would have to undergo strict ethical supervision, the team stressed.

However, it was unclear that the technique would work in a recently deceased human brain.

The chemical solution lacked many components found naturally in human blood, such as immune system cells.

Dr Stephen Latham, director of Yale University’s Interdisciplinary Center for Bioethics, said: “Restoration of consciousness was never a goal of this research.

“The researchers were prepared to intervene with the use of anaesthetics and temperature-reduction to stop organised global electrical activity if it were to emerge.

“Everyone agreed in advance that experiments involving revived global activity couldn’t go forward without clear ethical standards and institutional oversight mechanisms.”– PA


TOPICS: News/Current Events
KEYWORDS: aoc; brains; davidhogg; dead; faithandphilosophy; fringe; ohsomysteriouso; pigs; undead; zombiepigs
Navigation: use the links below to view more comments.
first 1-2021-4041-56 next last

1 posted on 04/17/2019 11:43:36 AM PDT by LibWhacker
[ Post Reply | Private Reply | View Replies]

To: LibWhacker

Jan in the Pan...


2 posted on 04/17/2019 11:45:54 AM PDT by Army Air Corps (Four Fried Chickens and a Coke)
[ Post Reply | Private Reply | To 1 | View Replies]

To: LibWhacker

Who says you need an active brain to be alive? Look at democraps, look at AOC!


3 posted on 04/17/2019 11:47:11 AM PDT by GrandJediMasterYoda (As long as Hillary walks free, equal justice under the law will never exist in the USA)
[ Post Reply | Private Reply | To 1 | View Replies]

To: LibWhacker
Be prepared for the pig zombie apocalypse!!!


4 posted on 04/17/2019 11:47:14 AM PDT by DannyTN
[ Post Reply | Private Reply | To 1 | View Replies]

To: Army Air Corps
Jan in the Pan...

Do you make your own gravy?

Regards,

MST3K

5 posted on 04/17/2019 11:47:48 AM PDT by alexander_busek (Extraordinary claims require extraordinary evidence.)
[ Post Reply | Private Reply | To 2 | View Replies]

Not only do the pigs spark back to life but they also start mumbling something like aloha snackbar


6 posted on 04/17/2019 11:48:36 AM PDT by dsrtsage (For Leftists, World History starts every day at breakfast)
[ Post Reply | Private Reply | To 2 | View Replies]

To: LibWhacker
This is going to lead to ...


7 posted on 04/17/2019 11:49:11 AM PDT by DannyTN
[ Post Reply | Private Reply | To 1 | View Replies]

To: LibWhacker

Gives a new meaning to the phrase “wake up dead.”


8 posted on 04/17/2019 11:49:30 AM PDT by Pearls Before Swine ( "It's always a party when you're eating the seed corn.")
[ Post Reply | Private Reply | To 1 | View Replies]

To: LibWhacker

That’s it! I’m not getting cremated!


9 posted on 04/17/2019 11:50:26 AM PDT by cuban leaf
[ Post Reply | Private Reply | To 1 | View Replies]

To: LibWhacker
Meh. Edwin Jenner observed the same thing with humans years ago. Here’s his analysis of TS-19.
10 posted on 04/17/2019 11:50:37 AM PDT by Ciaphas Cain ("Don’t piss off 'tolerant' people, they’ll kill you." -- DBrow on 04/04/2019)
[ Post Reply | Private Reply | To 1 | View Replies]

To: LibWhacker
"You can still communicate with the dead in the first 5 hours" - Dr Walter Bishop


11 posted on 04/17/2019 11:51:01 AM PDT by newfreep ("INSIDE EVERY PROGRESSIVE IS A TOTALITARIAN SCREAMING TO GET OUT" - DAVID HOROWITZ)
[ Post Reply | Private Reply | To 1 | View Replies]

To: alexander_busek

I am glad that someone “got it” so quickly!


12 posted on 04/17/2019 11:51:57 AM PDT by Army Air Corps (Four Fried Chickens and a Coke)
[ Post Reply | Private Reply | To 5 | View Replies]

To: LibWhacker

Meh. Frankenstein proved this over a century ago.


13 posted on 04/17/2019 11:52:07 AM PDT by cuban leaf
[ Post Reply | Private Reply | To 1 | View Replies]

To: LibWhacker

let me conjure up McCain who’s now burning in Hell and ask him...


14 posted on 04/17/2019 11:54:05 AM PDT by max americana (Fired libtards at our company for the past 12 yrs at every election. I hope all liberals die.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Army Air Corps

Jan in the Pan... The Brain That Would Not Die

Yikes! Totally missed that reference. Had to Google it. Never saw this movie, or even heard of it. Looks like I missed a good one. ;-)

15 posted on 04/17/2019 11:54:58 AM PDT by LibWhacker
[ Post Reply | Private Reply | To 2 | View Replies]

To: LibWhacker

Sorry, but death is by definition final. The headline attempts to make us think that a dead pig can be brought back to life. A lie.

The article says the truth: “Clinically defined, this is not a living brain, but it is a cellularly active brain”. Of course some cells will regain their function, but this is for a short time, and the organism is no longer a unified whole, and is dead, and the cells will die very soon too.

Death is that from which you do not return. If you “return from the dead” you were not dead.

Logic is apparently difficult to accept for some people.


16 posted on 04/17/2019 11:55:50 AM PDT by I want the USA back (Lying Media: willing and eager allies of the hate-America left.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: LibWhacker
...“Clinically defined, this is not a living brain, but it is a cellularly active brain.”

..... What if brain death was like wiping a hard drive ...... Now that it is cellularly active .... it is just waiting for the operating system to be installed.

17 posted on 04/17/2019 11:55:54 AM PDT by R_Kangel ("A nation of sheep will beget a nation ruled by wolves")
[ Post Reply | Private Reply | To 1 | View Replies]

To: LibWhacker

Is that “ Anne Uumellmahaye”?


18 posted on 04/17/2019 11:56:15 AM PDT by dfwgator (Endut! Hoch Hech!)
[ Post Reply | Private Reply | To 15 | View Replies]

To: LibWhacker

Any Muslims on project team?


19 posted on 04/17/2019 11:59:20 AM PDT by alternatives? (Why have an army if there are no borders?)
[ Post Reply | Private Reply | To 1 | View Replies]

To: LibWhacker

Weekend at Babe’s?


20 posted on 04/17/2019 12:00:41 PM PDT by VietVet876
[ Post Reply | Private Reply | To 1 | View Replies]


Navigation: use the links below to view more comments.
first 1-2021-4041-56 next last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
News/Activism
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson