[Paleopsych] NYT Idiotorial: A Surprising Leap on Cloning
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Sun May 22 17:03:34 UTC 2005
A Surprising Leap on Cloning
http://www.nytimes.com/2005/05/22/opinion/22sun2.html
South Korean scientists stunned their rivals around the world last
week by announcing that they had produced the first human embryos that
were genetic matches for diseased or injured patients, and had done so
by a highly efficient method that could bring further rapid advances
in cloning. It was sobering evidence that leadership in "therapeutic
cloning" has shifted abroad while American scientists, hamstrung by
political and religious opposition, make do with private or state
funds in the absence of federal support.
The Korean achievement, published in the online edition of the journal
Science, makes the current debate in Congress over federal financing
of stem cell research look pathetically behind the times. Under
current restrictions imposed by President Bush, federal money can be
used for research on 20 stem cell lines that were derived from surplus
embryos at fertility clinics years ago, but not on any newly derived
lines. A House bill that may come up for a vote soon would expand the
number of surplus embryos that could be studied but would not allow
federal funding for therapeutic cloning, the most promising avenue for
stem cell research.
That would be a missed opportunity. Stem cells derived from cloned
human embryos that are genetically matched to sick patients are
potentially much more useful than stem cells derived from surplus
embryos at fertility clinics, both for research and for potential
treatments. Since cloned embryos carry the genetic makeup of patients
with known diseases, scientists can study how those diseases develop
from the earliest stages and can perhaps find drug treatments to
interrupt the process. And if scientists ultimately succeed in
converting the stem cells themselves into replacement tissues to
repair damaged organs, those tissues would have the best chance of
avoiding rejection by a patient's immune system if they were
genetically matched to the patient through therapeutic cloning.
Unfortunately, the House has twice passed bills to ban therapeutic
cloning outright, not just restrict federal financing, and President
Bush remains "dead set against human cloning," according to a White
House spokesman. The president threatened to veto even the modest
proposals to use more surplus embryos from fertility clinics. In the
upcoming struggles over stem cell legislation, supporters of sound
science must ensure that no ban is imposed on therapeutic cloning that
would further shackle American researchers while scientists in Asia
and Britain forge ahead.
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