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Thread: man frozen |
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Thread Status: Active Total posts in this thread: 10
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Cryptographer Hal Finney, known for his work on PGP encryption software and on early Bitcoin development, had ALS – a terrible disease.
He chose cryopreservation. In other words, his body will be frozen and kept in that state until a solution comes along to revive him, if that ever happens. Finney’s body was flown to the Alcor Life Extension Foundation where blood and other fluids were removed from his body and replaced with a chemicals mix called M-22, which is designed to be “as minimally toxic as possible to his tissues while preventing the formation of ice crystals that would result from freezing and destroy his cell membranes”. The temperature of his body will be lowered to -320 degrees Fahrenheit, and Finney will be placed in an aluminum pod inside a 10-foot tall tank that’s filed with 450 liters of liquid nitrogen. |
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cjslman
Master Cruncher Mexico Joined: Nov 23, 2004 Post Count: 2082 Status: Offline Project Badges: 
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Interesting information... I'm assuming that this method has been tested successfully on other mammals ?
----------------------------------------CJSL Crunching for a better world... |
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twilyth
Master Cruncher US Joined: Mar 30, 2007 Post Count: 2129 Status: Offline Project Badges: 
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You can't remove fluid from individual cells w/o damaging them. So when you freeze tissue, ice crystals will form which will shred the cells from the inside out.
----------------------------------------What is needed is a method of tissue vitrification. IOW a method of freezing such that the water in the cells turns to a glass rather than a crystal. But if we could do that then we could freeze organs for transplant and keep them on the shelf indefinitely. This would be a huge boon for organ transplantation but obviously we can't do that yet so Mr. Finney will probably be a whole lot of mush when he is defrosted.   [Edit 1 times, last edit by twilyth at Sep 2, 2014 1:39:00 AM] |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Mush would be an exaggeration, the meat we deep-freeze and then thaw does not turn that way, tastes as good, but the brain will likely be 'mush'. Interestingly, spying on halfcard, he's got a long history of posts on aging and herpes. Is he going to leave us soon, to come back for treatment when wcg turns 310?
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Hot Mess
Cruncher Joined: Jul 1, 2013 Post Count: 28 Status: Offline |
Good question CJSL !
----------------------------------------I would also like to know me whether this method was successfully tested on mammals. Otherwise it is just fraud.   [Edit 1 times, last edit by Hot Mess at Sep 2, 2014 2:48:28 PM] |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
It has never been tested as no one has managed to figure out how to bring them back!
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cjslman
Master Cruncher Mexico Joined: Nov 23, 2004 Post Count: 2082 Status: Offline Project Badges:
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It has never been tested as no one has managed to figure out how to bring them back! HA!!! A very cold one way trip !!!  CJSL Crunching for a brighter future... |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
"A World Out Of Time", 1976, by Larry Niven, is a good SF novel about a man who tries cryo-freezing. The author cheats by claiming that memory is in his RNA, which can be extracted and put in another body, but he has the protagonist sneeringly lectured about how the ice crystals rupture his brain cells from the inside.
Not a recommended medical procedure. Lawrence |
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twilyth
Master Cruncher US Joined: Mar 30, 2007 Post Count: 2129 Status: Offline Project Badges:
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There are probably compounds that, if you can get cells to take them up, would prevent ice crystal formation. However I think most research in the future will probably go towards growing artificial organs from stem cells rather than working on ways of preserving transplant organs. Rejection is still a huge problem with transplants and with induced pluripotent stem cells, IIRC, you should be able to grow new organs on a collagen scaffold .
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Jack007
Master Cruncher CANADA Joined: Feb 25, 2005 Post Count: 1604 Status: Offline Project Badges: 
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I remember the CIA "crying" about PGP when it came out...
----------------------------------------I wonder if that was to fake out everyone about the backdoor it had, as Tom Clancy wrote in a book, (I forget which one). On another note, I wish we could CURE some of these diseases, instead of just somewhat better drugs. Whatever, we do what we can.  |
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