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NRL News
Page 2
April 2009
Volume 36
Issue 4
“I Think,
Oprah, the Stem Cell Debate Is Dead”
BY Dave
Andrusko
Given
where it showed up, had the March 31 program aired one day later,
your first impulse would have been this must be an April Fool’s
joke. An announcement that actually paid attention to the science,
rather than bowed to ideology, was made on, of all places, Oprah.
Dr.
Mehmet Oz, an Oprah regular, announced that there will be a cure for
Parkinson’s disease within “our lifetime” and “a big impact in the
lives of Parkinson’s disease, but also diabetics, heart attack
victims, people who have had a lot of problems” within “single-digit
years.”
Sitting
between Dr. Oz and Oprah was actor Michael J. Fox, a victim of
Parkinson’s. Fox’s crusade on behalf of using embryonic stem cells
(ESC) has not exactly been leavened with kind words about those who
oppose ESC on ethical grounds (it’s indefensible) and pragmatic
grounds (there are far better alternatives).
So had
you missed the first few minutes you would have expected another pep
talk about why ESC is the answer. Not so.
Holding
the brain of a 50-year-old man to illustrate his points, Oz gave a
quick and helpful overview of how it works as well as explaining the
underlying problem for people with Parkinson’s. (It’s associated
with a decline in the production of the brain chemical dopamine.)
Then, in
fine professorial form, Oz illustrated the theory behind the use of
embryonic stem cells by poking a needle through the brain to the
area where the ESCs would theoretically be injected. While nice in
theory, in practice ESCs are (my words) like unruly adolescents who
run every which way, including in the direction of causing cancers.
Then Oz
said this: “Now, I’m going to say something that’s going to be a bit
provocative. I think, Oprah, the stem cell debate is dead, and I’ll
tell you why.”
Oz
prefaced his explanation by exclaiming enthusiastically that there
has been a “huge amount of change made,” the equivalent of “10
years” worth of advancement in the last year. Turns out there is an
orderly and productive alternative.
He never
called the primary change by its real name—iPS (induced pluripotent
stem) cells. Instead, he showed it.
Taking
Fox’s hand, Oz said, “Here’s what the deal is. I can take a little
bit of your skin, take those cells, get them to go back in time
[into becoming iPS cells] so they are like they were when you were
first made, and then they will start to make that dopamine; and I
think those cells, because they won’t be as prone to cancer, and
because they’re your genes, will be the ones that are ultimately
used to cure Parkinson’s.” (His emphasis.)
After
discussing the great improvements and eventual cure, he added, “And
that’s exciting to all of us in medicine.”
But it
ought to be exciting to anyone who values truth, honesty, and
candor. What can someone with those commitments take away from Dr.
Oz’s explanation?
That it’s
time to dip into the tool case and go full bore with what is
working—iPS cells and stem cells from adult sources—and junk the
rest.
You can
watch the video at
www.youtube.com/watch?v=lDFJOzu9SyM. |