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But that's the challenge, to switch every body cell on as a totipotent
cancer cell similtaneously, slow down the metabolism so<br>
none divides, circulate a swarm of autoimmune cells to tag defective
cells for future destruction, reset all the switches<br>
, crank up the metabolism and send in the scavenger cells to wack out
the burned out cells and infuse a new batch of stem cells<br>
into every tissue to rebuild tissues. A massive order, but like with
"Doctor Who" it is steady state-evolution which will replace<br>
natural selection by death or illness. The trick is to maintain the
memory and consciousness of the brain through this<br>
housecleaning operation.<br>
<br>
<br>
The Avantguardian wrote:<br>
<blockquote cite="mid20051110025946.18408.qmail@web60525.mail.yahoo.com"
type="cite">
<pre wrap="">
--- Jeff Davis <a class="moz-txt-link-rfc2396E" href="mailto:jrd1415@yahoo.com"><jrd1415@yahoo.com></a> wrote:
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<pre wrap="">Which brings me once again to the question: if I
extract some of my bone marrow, sort the various
progenitor cells, repair, rejuvenate, or immortalize
them, culture them to increase their number, and
reinject them into my bone marrow, can I rejuvenate
or
"super-rejuvenate" my bone marrow progenitor cell
repair/mainteneance capability and thereby achieve a
substantial extension of my health and/or lifespan?
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<pre wrap=""><!---->
In answer to your question, yes. Supposing that you
could somehow rejuvenate the CD34+ positive stem cells
from your bone marrow, you would undoubtably extend
your life. Immortalizing them however is a tricky
proposition, because cellular immortalization without
tight regulation of growth is called cancer. So from a
systems point of view, rejuvenating your bone marrow
and thymus would add many years to your life. The
whole trick is figuring out HOW to do it without
causing leukemia.
The Avantguardian
is
Stuart LaForge
alt email: stuart"AT"ucla.edu
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