Update on Embryo-Destructive Research
[The following article will appear in the February edition
of National Right to Life News. For further information on the
current federal law on embryo-destructive research,
contact the NRLC Federal Legislative Office at 202-626-8820 or
Legfederal@aol.com. For more information on the forms of stem
cell research that do not harm embryos, see www.stemcellresearch.org]
As President Bush considers embryonic and fetal research,
new findings support his pro-life stance
By Richard M. Doerflinger
[Mr. Doerflinger is associate director for Policy Development at the
Secretariat for Pro-Life Activities, National Conference of Catholic
Bishops.]
(February 6, 2001) - - President George W. Bush spent an impressive
first weekday in office. On January 22, Mr. Bush issued a statement of
support to March for Life attendees and reversed Bill Clinton's policy
of promoting abortion overseas.
His next pro-life challenge may be to take on the Clinton
Administration's ongoing plans for destructive human embryo research.
At issue are National Institutes of Health (NIH) guidelines published in
final form in August, authorizing taxpayer funding of research that
requires killing human embryos for their "stem cells." With swift action
by the Bush Administration, these guidelines can still be rescinded
before federal funds are disbursed for destructive research this spring.
Where the Policy Debate Stands
Since 1996, Congress has banned federal funding for research in which
human embryos are harmed or destroyed. (The law is called the Dickey
Amendment - - see below.) But once researchers announced progress in
culturing stem cells from human embryos in November 1998, the Clinton
Administration developed a scheme to evade this law.
Based on a legal opinion by Health and Human Services attorney Marcy
Wilder (former legal director of the National Abortion Rights Action
League), the NIH proposed funding research that uses stem cells from
"spare" embryos at fertility clinics. These are live human embryos
created in the lab by in vitro fertilization for reproductive purposes,
whose parents no longer want them.
In the guidelines, NIH instructs researchers on how to obtain and kill
these embryos to obtain their stem cells, in order to obtain federal
grants for the research on those stem cells. The guidelines simply
assert that federal funds do not pay for the killing of the embryos,
even though the killing can be arranged or even performed by the
federally funded researcher (and the embryos must be killed in the
government-approved manner, of course).
During the presidential campaign then-Governor Bush saw through this
deception. In response to a candidate questionnaire from the United
States Catholic Conference, he stated forthrightly: "Taxpayer funds
should not underwrite research that involves the destruction of live
human embryos." Going beyond the immediate question on embryonic stem
cell research, he also stated: "I oppose using federal funds to perform
fetal tissue research from induced abortions."
Since his inauguration, the President and his spokespersons have
reaffirmed his position on both issues.
Unlike human embryo research, which has never received federal funds,
some forms of fetal tissue research using abortion victims were
authorized by Congress in 1993 and continue to this day. Some members of
Congress, such as Senator John McCain (R-Az.), have opposed embryonic
stem cell research but supported fetal tissue research, arguing that the
latter uses tissue only after an abortion that would have been performed
anyway and did not involve the researcher.
On National Public Radio's "Talk of the Nation" on January 31, however,
that argument was rebutted by pro-abortion ethicist John Fletcher of the
University of Virginia. Obviously, said Fletcher, whether you approve of
fetal tissue research using abortion victims will depend on whether you
approve of abortion. President Bush's strong stand against both these
forms of research is an important sign of his resolve.
In reaffirming his opposition to abortion-dependent research on January
26, President Bush also demonstrated his knowledge of and support for
morally acceptable alternatives: "I believe there's some exciting - - I
believe there's some wonderful opportunities for adult stem cell
research. I believe we can find stem cells from fetuses that died a
natural death. But I do not support research from aborted fetuses."
The Medical Realities
So what are these things called "stem cells"? And what is the difference
between the embryonic variety that preoccupied Clinton's NIH, and the
adult variety noted by President Bush?
Stem cells are versatile, unspecialized cells that can reproduce
themselves and also produce more specialized cells needed by the body.
We all have stem cells throughout our bodies. For example, whenever we
need new blood cells, the hematopoietic (blood-producing) stem cells in
our bone marrow produce more of the cells needed - - red blood cells,
white blood cells, etc. But the early embryo is almost entirely made up
of stem cells, which many researchers want to harvest (by killing the
embryo) for experiments in repairing and regenerating human tissues and
organs.
In their zeal for federal support of destructive embryo research,
pro-abortion medical and patient groups have virtually ignored the
growing evidence documenting the promise of adult stem cells and other
alternatives. But the latest scientific findings show that President
Bush's remarks were right on target. A few examples:
- The December 1 issue of Blood rebuts claims that adult stem cells
cannot be grown fast enough or long enough to benefit human patients.
Researchers found that, with a little help from added growth factors,
adult blood stem cells could be "maintained for prolonged periods (up to
16 weeks), and sufficient numbers were generated for adult
transplantation."
-
The December 1 issue of The Journal of Neuroscience reports progress
toward using adults' own stem cells from other parts of the body to
produce new nerve cells for repair of brain damage. Researchers found
that stem cells from "a non-neurogenic region" in rats are not
restricted in their development but can generate new nerve cells in the
brain "when exposed to the appropriate environmental cues."
-
The February 2001 Scientific American reviews several studies reported
at the November 2000 conference of the Society of Neuroscience in New
Orleans. New nerve cells for transplants can be produced using stem
cells from recently deceased adults, the scalps of living humans, or the
skin of rats. So promising are these results, says the journal, that
some researchers predict human clinical trials in one to two years.
-
Perhaps even more astonishing, the NIH's own National Institute for
Neurological Disorders and Stroke has confirmed that patients' own bone
marrow stem cells can be directed to generate nerve cells for brain
repair. "The studies suggest that bone marrow may be a readily available
source of neural cells with potential for treating such neurological
disorders as Parkinson's disease and traumatic brain injury," says the
Institute's November 30 press release. Researchers have found "an
unexpected amount of flexibility in older cells," and are excited
because "bone marrow cells taken from a patient's own body would not be
rejected by the body's immune system."
-
Use of bone marrow stem cells to repair damaged bone and cartilage is
already in human clinical trials, at Osiris Therapeutics in Baltimore
and other centers. The February 1 New England Journal of Medicine
reports on successful efforts by Italian and Russian researchers to
repair "large bone defects" using these cells. By growing patients' own
stem cells and placing them on porous "scaffolds" shaped to bridge the
gaps in their bones, the researchers were able to restore limb function
to three patients with serious bone defects in record time, with no
complications or problems up to 27 months afterward.
Problems With Embryonic Cells Emerge
Reviewing the recent startling advances in adult stem cell research,
even the December 1 issue of Science (journal of the American
Association for the Advancement of Science, which supports destructive
embryo research) admits that "easily accessible cells from bone marrow
might someday be used to treat a wide range of neurological diseases--
without raising the ethical concerns that accompany the use of embryonic
cells." And this article admits something even more significant: "In
contrast, the human embryonic stem cells and fetal germ cells that made
headlines in November 1998 because they can, in theory, develop into any
cell type have so far produced relatively modest results."
"Relatively modest" is a euphemism. The results reported by the Geron
Corporation at the November neuroscience meeting in New Orleans are
deeply disturbing.
The Geron researchers reported that when they transplanted human
embryonic stem cells into rats' brains, the cells "did not readily
differentiate into brain cells." Instead, "they stayed in a disorganized
cluster, and brain cells near them began to die." This even occurred if
the embryonic cells had partly differentiated before being transplanted.
Earlier reports that these embryonic cells might not be easy to control
-- that they might produce tumors or other harmful growths when
transplanted into patients -- had been dismissed by some embryo research
enthusiasts.
Now the leading corporation funding embryonic stem cell research in the
United States, which has more experience in this field than anyone else
and has aggressively lobbied and testified for federal funding, has
confirmed these reports. The Science article noted that "Geron
researchers seem no closer than other groups to devising therapeutic
uses for stem cells."
This article notes that human embryonic cells have even proved harder to
grow in culture than once thought -- much "trickier" to keep alive than
the mouse embryonic cells which had raised some researchers' hopes. This
is especially ironic because embryo research advocates have denied that
adult stem cells can be grown to produce sufficient quantities of cells
for transplants. Now adult stem cells are proving easier to grow than
many thought, and embryonic cells proving far more difficult.
Slowing Progress?
A final irony came to light on January 31, the day of the aforementioned
"Talk of the Nation" radio debate on stem cells. On that program, Dr.
John Gearhart of Johns Hopkins University, insisted that adult stem
cells are no substitute for the pioneering work done by himself and
others using stem cells from human embryos and aborted children. He
lamented that a failure to provide federal funding for such lethal
research will greatly hamper medical progress.
But on that same day, his own university announced it had received an
unrestricted $58.5 million cash grant from an anonymous donor, to be
used primarily for Dr. Gearhart's approach. Deplorable in its own terms,
such an influx of private funds into lethal research rebuts any charge
that researchers need to coerce conscientiously opposed taxpayers into
underwriting their work.
To add one last twist, the Johns Hopkins press release noted that this
private grant will fund embryonic stem cell research but will also
"extend that work into adult stem cells as a source of tissue," because
in many devastating diseases those cells "offer the best hope for
patients." The Johns Hopkins scientist quoted here on the great promise
of adult stem cells was... John Gearhart.
The remarkable promise of adult stem cells, the concession even by
supporters of embryonic research that adult cells may prove the safer
and more beneficial route, the moral problem created by destroying human
life for research, and the highly questionable legality of the Clinton
Administration's guidelines for embryo research -- all these factors
should make George W. Bush's decision on funding embryonic stem cell
research one of the easier ones of his presidency.
* * * * *
Current Law Prohibits Federal Funding
of Embryo-Destructive Research
As discussed in the above article by Richard Doerflinger, the Clinton-Gore
Administration promulgated guidelines for federal funding of research in
which human embryos will be killed in order to obtain their "stem cells."
Operating under these guidelines, the federal National Institutes for Health
(NIH) are accepting grant requests for such research, with a March 15
deadline.
However, the Bush Administration has begun a review of the issue. As Mr.
Doerflinger discusses in his article, it is hoped that the review will
conclude that the type of funding proposed by the Clinton Administration
guidelines is clearly in violation of federal law.
Since 1996, a provision of the DHHS appropriations bill has flatly prohibited
federal funding of any "research in which" a human embryos are harmed or
placed at risk. This law is known as the "Dickey Amendment," after its
author, former Congressman Jay Dickey (R-Ar.).
The Dickey Amendment was renewed for Fiscal Year 2001 on December 21, 2000,
when President Clinton signed a consolidated appropriations bill that
contained the DHHS appropriations bill for FY 2001 (HR 4577/HR 5656), which
is now Public Law 106-554. The pertinent language is Section 510, which is
reproduced below.
The Dickey Amendment
SEC. 510. (a) None of the funds made available in this Act may be used for--
(1) the creation of a human embryo or embryos for research purposes; OR
(2) research in which a human embryo or embryos are destroyed, discarded,
or knowingly subjected to risk of injury or death greater than that allowed
for research on fetuses in utero under 45 CFR 46.208(a)(2) and section 498(b)
of the Public Health Service Act (42 U.S.C. 289g(b)).
(b) For purposes of this section, the term `human embryo or embryos'
includes any organism, not protected as a human subject under 45 CFR 46 as of
the date of the enactment of this Act, that is derived by fertilization,
parthenogenesis, cloning, or any other means from one or more human gametes
or human diploid cells.
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