Re: Girl Genius 2011-02-04

In article <4d505e85$0$22835$d368eab@xxxxxxxxxxxxxxx>,
mvp@xxxxxxxxxxxxxxx says...

In article <e3ac7713-3470-46eb-ace9-c98327f51095@xxxxxxxxxxxxxxxxxxxxxxxxxxx>,
Robert Carnegie <rja.carnegie@xxxxxxxxxx> wrote:
It does seem in the story that Selnikov must have been dead, and his
brain starved of oxygen, for far longer than would leave him anything
to recover with if our world's best hospital resuscitation techniques
were applied - however long it took Vole to find him - although there
are a few tales of extraordinary revivals from a state of hypothermia
after drowning in very cold (freezing) water.

That's always been the theory ... but a new one has popped up recently.

Brain damage due to lack of oxygen doesn't start happening for
30 minutes or more, maybe an hour. However, it sets some trigger
that causes brain cells to self-destruct when they're re-oxygenated.

This trigger gets reset by low temperatures. So, cool the brain
down first, then re-oxygenate, and the brain survives intact.
That's how the "recovery after drowning in cold water" works.

There have apparently been some animal experiments that support
this theory.

Interesting.

Reminds me of the discussion of cloning in "The Real Science Behind The
X-Files" which was written by a virology professor who was one of the
technical advisors for the show. Seems that she had a standard lecture
in one of her biology courses in which she explained why it would never
be possible to clone an animal from DNA taken from a cell of an adult.
Well, she came out of that lecture one day and read all about Dolly the
Sheep and then had to explain to her class that everything she had
taught them about cloning was wrong.
.

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