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IIRC, current techniques allow blood to be frozen for about three months. After that, ice crystals begin to encroach on the cell walls, rupturing them and causing the cells to die. Plasma can be kept for longer, but it still is subject to the same relatively short lifespan.
It's really interesting though, because we might not be that far away from being able to clone and grow marrow cells that make 'younger' blood that is genetically identical.
If we can find a way around the shorter telomerase problem, this should be possible. |
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