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In reply to Maryse's posting about U.S. funding of stem cell research:

First of all - the good news! From NIH: Stem cell basics
http://stemcells.nih.gov/infoCenter/stemCellBasics.asp

The following section is highlighted:

Stem Cells for the Future Treatment of Parkinson's Disease

"Parkinson's disease (PD) is a very common neurodegenerative disorder
that affects more than 2% of the population over 65 years of age. PD is
caused by a progressive degeneration and loss of dopamine (DA)-producing
neurons, which leads to tremor, rigidity, and hypokinesia (abnormally
decreased mobility).

***It is thought that PD may be the first disease to be amenable to
treatment using stem cell transplantation. Factors that support this
notion include the knowledge of the specific cell type (DA neurons)
needed to relieve the symptoms of the disease. In addition, several
laboratories have been successful in developing methods to induce
embryonic stem cells to differentiate into cells with many of the
functions of DA neurons.

In a recent study, scientists directed mouse embryonic stem cells to
differentiate into DA neurons by introducing the gene Nurr1. When
transplanted into the brains of a rat model of PD, these stem
cell-derived DA neurons reinnervated the brains of the rat Parkinson
model, released dopamine and improved motor function.

Regarding human stem cell therapy, scientists are developing a number of
strategies for producing dopamine neurons from human stem cells in the
laboratory for transplantation into humans with Parkinson's disease. The
successful generation of an unlimited supply of dopamine neurons could
make neurotransplantation widely available for Parkinson's patients at
some point in the future."
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In answer to Maryse's question:

> > I may be wrong but I don't think the government is forbidding use
> of stem cells, it is just not funding research.>>

You're right - for  the present time, but "just not funding research" is
a complicated issue, and many scientists believe current federal policies
are slowing the research progress.

In  August 9, 2001, President Bush issued his decision on stem cell
research. He authorized federal funding of stem cell research that
utilizes only existing stem cell lines that were derived  before August
9, 2001.
To receive  Federal funding  for research on these lines
" 1) there must have been informed consent of the donors,
2) the embryos must have been created for reproductive purposes (from
IVF) and in excess of clinical need,
3) there must not have been any financial inducements to the donors,
4) the embryos must not have been created for research purposes."

Bush stated in August 2001 that there were 78 lines available for
research under these policies. However   scientists working in the field
report that of the 78 identified lines only 15 are actually available to
researchers, and all of those 15 lines are contaminated with mouse feeder
cells, making their therapeutic use for humans uncertain.
------------------------------------------------
There are currently bills in Congress, and in a number of state
legislatures that would prohibit and criminalize  stem cell research
utlizing SCNT (or therapeutic cloning)  Instead of obtaining stem cells
from excess embryos produced during in vitro fertilization treatments, as
described above, SCNT involves removing the nucleus of an UNFERTILIZED
donor egg cell and replacing it with DNA from the nucleus of a "somatic
cell" (such as nerve cell, skin cell etc.) The cell is stimulated to
begin dividing, and after 5-6 days stem cells can be extracted for
research purposes.
This is not reproductive cloning - these egg cells are NOT transplanted
in the womb to develop into a baby.

Federal Legislation:
House of Representatives:

On Feb. 27, 2003 The House of  Representative passed H.R. 534—Human
Cloning Prohibition Act of 2003 by a vote of  241 to 155 . H.R. 534 ,
introduced by Representative Dave Weldon (R-FL) , would prohibit both
reproductive and therapeutic cloning, and includes a criminal penalty of
up to 10 years for violation of the provisions of the bill.  If a similar
bill is passed by the Senate, Pres. Bush has said he would sign it into
law.

Bills Pending in the Senate:

S. 245—Human Cloning Prohibition Act of 2003
On January 29, 2003, Senator Sam Brownback (R-KS) introduced S. 245, the
Human Cloning Prohibition Act of 2003. The bill would prohibit both
therapeutic and reproductive cloning, and is similar to H.R. 534  The
bill was referred to the Senate Committee on Health, Education, Labor and
Pensions.

S. 303—Human Cloning Ban and Stem Cell Research Protection Act of 2003
(Hatch-Feinstein-Specter-Kennedy-Miller bill)
"On February 5, 2003, Senator Arlen Specter (R-PA) introduced S. 303, the
Human Cloning Ban and Stem Cell Research Protection Act of 2003. The bill
would prohibit reproductive cloning but would specifically permit
therapeutic cloning, as long as certain ethical requirements are met."
The bill is currently in the Judiciary Committee.

In absense of federal law,a number of state legislatures have similar
competing bills pending, and some states have passed laws permitting stem
cell and SCNT research under specific guidelines (California and New
Jersey) , while other states have introduced or passed laws banning and
criminalizing the research.

Sources:
NIH Stem Cell Information web site.
http://stemcells.nih.gov/index.asp
Coalition for the Advancement of Medical Research web site
www.camradvocacy.org

Linda Herman

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