while it takes some time for the memory structures of the brain to degrade due to ischemia
This goes counter to all I know on the topic, subject to how severely you interpret “degrade”. Can you source it, or explain how you formed that opinion?
Regarding your proposed solution, we can do one better (just an injection):
“Rabbits with blocked windpipes have been kept alive for up to 15 minutes without a single breath, after researchers injected oxygen-filled microparticles into the animals’ blood.”
By ‘some time’ I mean on the order of a few hours. This is drawn from a few things, notably people who have recovered from medical death under cold conditions after multiple hours, and the relatively recent discovery that most of the numbers originally thrown around for irreversible brain damage (three to five minutes) are actually due to cell suicide when the patient is too rapidly reoxygenated, and many brain cells may remain viable for several hours. Additionally, the synapses, which are our primary point of concern in cryonics, are less volatile than the oxygen metabolism of the cell proper, which are likely to be the first thing to go.
On the other note, a synthetic oxygen carrier / oxygen-doped particles would certainly be an improvement, if it’s that effective. I wonder if it would be practical to keep a syringe on my person at all time, and wear a bracelet giving instructions for administration.
This goes counter to all I know on the topic, subject to how severely you interpret “degrade”. Can you source it, or explain how you formed that opinion?
Regarding your proposed solution, we can do one better (just an injection):
“Rabbits with blocked windpipes have been kept alive for up to 15 minutes without a single breath, after researchers injected oxygen-filled microparticles into the animals’ blood.”
Source: Journal Nature. Lipid foam, baby!
By ‘some time’ I mean on the order of a few hours. This is drawn from a few things, notably people who have recovered from medical death under cold conditions after multiple hours, and the relatively recent discovery that most of the numbers originally thrown around for irreversible brain damage (three to five minutes) are actually due to cell suicide when the patient is too rapidly reoxygenated, and many brain cells may remain viable for several hours. Additionally, the synapses, which are our primary point of concern in cryonics, are less volatile than the oxygen metabolism of the cell proper, which are likely to be the first thing to go.
On the other note, a synthetic oxygen carrier / oxygen-doped particles would certainly be an improvement, if it’s that effective. I wonder if it would be practical to keep a syringe on my person at all time, and wear a bracelet giving instructions for administration.