[QUOTE]
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Dr Mark Roth and his colleagues wondered how it is that some people can enter a state of frozen suspended animation and then recover from it safely, whereas in general such a change of body temperature is deadly.
The scientists now think they may be on the track of an answer, having learned how to perform the same trick reliably with other lifeforms; in this case yeasts and nematode worms. Yeasts and worms, like humans, will normally simply die if they are chilled down past a certain point. But Roth and his colleagues have found that if the little creatures are starved of oxygen before turning on the cold, they will go into suspended animation from which they recover on warming and go on to live normal yeasty or wormy lives.
[MEDIA]http://www.youtube.com/watch?v=6okurk9O1ow&feature=player_embedded[/MEDIA]
Roth and his colleagues think that their work might lead to techniques that would let paramedics or doctors "buy time" for severely injured or ill patients by putting them into suspended states.
Molecular Biology of the Cell Journal - Suspended Animation Extends Survival Limits of Caenorhabditis elegans and Saccharomyces cerevisiae at Low Temperature
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The orderly progression through the cell division cycle is of paramount importance to all organisms, as improper progression through the cycle could result in defects with grave consequences. Previously, our lab has shown that model eukaryotes such as Saccharomyces cerevisiae, Caenorhabditis elegans, and Danio rerio all retain high viability after prolonged arrest in a state of anoxia-induced suspended animation, implying that in such a state, progression through the cell division cycle is reversibly arrested in an orderly manner. Here, we show that S. cerevisiae (both wild-type and several cold-sensitive strains) and C. elegans embryos exhibit a dramatic decrease in viability that is associated with dysregulation of the cell cycle when exposed to low temperatures. Further, we find that when the yeast or worms are first transitioned into a state of anoxia-induced suspended animation before cold exposure, the associated cold-induced viability defects are largely abrogated. We present evidence that by imposing an anoxia-induced reversible arrest of the cell cycle, the cells are prevented from engaging in aberrant cell cycle events in the cold, thus allowing the organisms to avoid the lethality that would have occurred in a cold, oxygenated environment
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[URL=http://www.molbiolcell.org/cgi/data/E09-07-0614/DC1/1]3 pages of supplemental information.[/URL]
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Source: [url]http://nextbigfuture.com/2010/06/suspended-animation-cold-sleep-achieved.html[/url]
This is incredibad.
Good catch, OP.
I could swear I read something similar about suspended animation with oxygen starvation a few years ago.
That's awesome.
It's cool, but I want to see it work on a mouse or a rat or something before I get too excited.
Achievement unlocked?
I wonder wether this will be possible in human beings or other animals like dogs and cats, because worms and yeasts, especially the yeasts are extremely simple living creatures.
The article also doesn't state how long they remain in such state. There's a few animals that can go into a semi-suspended state freely to avoid drowning for around half an hour like fleas and cockroaches, etc.
I don't really think it's news worthy, unless they actually test it on a human.
[media]http://www.youtube.com/watch?v=uVAaZVz9pDs[/media]
[QUOTE=Kendra;22605775]
The article also doesn't state how long they remain in such state. There's a few animals that can go into a semi-suspended state freely to avoid drowning for around half an hour like fleas and cockroaches, etc.[/QUOTE]
Humans can too:
[URL]http://en.wikipedia.org/wiki/Mammalian_diving_reflex[/URL]
We can already freeze people and keep them alive. The problem is we don't know how to unfreeze them yet.
[QUOTE=WhatTheKlent;22605938]Humans can too:
[URL]http://en.wikipedia.org/wiki/Mammalian_diving_reflex[/URL][/QUOTE]
Yes, but that happens at colder temperatures and it doesn't actually give you a LOT more longer as a human.
In any case, it would be interesting if this is achievable for bigger organisms like humans, but I also doubt this would work indefinetly.
ok thats it put my to sleep till the year 4000
actually scratch that put my to sleep for 20 years thatd be enough :D
Only a matter of time...
[img]http://fervorelemental.files.wordpress.com/2009/06/fry3-full.jpg[/img]
strap me to a rocket and send me to M31
[QUOTE=Xera;22605705]That's awesome.[/QUOTE]
2 things:
1. ZOMG its a tall-nut!
2. i totally agree. think of the possibilities this opens for us in space travel and ect... wow!
what the hell is this cryo-sleep?
This is cool and all, but it's only single-celled organisms and embryos. Get me when it's a bit larger.
What does intrigue me is how memory/personality would be affected by this process in higher mammals. Suspended animation is no use if you're a vegetable afterwards.
I remember seeing something like this awhile ago, and I think they did it on rats or mice, too
[QUOTE=radioactive;22605745]Achievement unlocked?[/QUOTE]
You can't earn achievements, your account has been frozen.
Once we achieve safe stasis-technology for humans, I am going to sleep for the next thousand or so years. All my life I've been dying to know how humanity will be in the future, and what technological advancements we've made by then. It's the source of my huge passion for science fiction. To actually experience it would be the greatest thing that could happen to me.
This will definitly come in handy in the future.
That would be amazing as far as medicine goes. You wouldn't need an emergency vehicle to transfer critical patients to other hospitals for treatment. Just freeze em' and stuff them in a truck bound for the hospital.
[QUOTE=Mindtwistah;22621606]Once we achieve safe stasis-technology for humans, I am going to sleep for the next thousand or so years. All my life I've been dying to know how humanity will be in the future, and what technological advancements we've made by then. It's the source of my huge passion for science fiction. To actually experience it would be the greatest thing that could happen to me.[/QUOTE]
Assuming the cryo-genic chambers aren't destroyed in some sort of war
To all the people wanting this tech so they can sleep for 1000 years and see technological advances - what if everyone wanted to do this? What if everyone decided to go to sleep for 1000 years? There would be no technological or social development :v:
Lets go to space
[IMG]http://www.filmofilia.com/wp-content/uploads/2009/06/pandorum_poster_m.jpg[/IMG]
This is to kick off the new futurama episodes right?
[QUOTE=wonkadonk;22623953]To all the people wanting this tech so they can sleep for 1000 years and see technological advances - what if everyone wanted to do this? What everyone decided to go to sleep for 1000 years? There would be no technological or social development :v:[/QUOTE]
Everything would be exactly the same as when you went in. That would be a kick in the nuts for anyone wanting to see the future.
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