Posted on: October 24, 2010 Posted by: Eric Emmanuel Comments: 12

Stemagen via Bloomberg News

Updated: Sept. 10, 2010

Stem cells are how we all begin: undifferentiated cells that go on to develop into any of the more than 200 types of cell the adult human body holds.

Few quarrel with predictions of the awesome potential that stem cell research holds. One day, scientists say, stem cells may be used to replace or repair damaged cells, and have the potential to drastically change the treatment of conditions like cancer, Alzheimer’s and Parkinson’s disease and even paralysis. But the divisions over how to conduct that research have been deep and bitter. Most research has been conducted on embryonic stem cell lines — cultures of cells derived from four- or five-day-old embryos, or fertilized cells. Opponents of embryonic stem cell research, which often uses embryos discarded by fertility clinics, want it to be severely restricted or banned outright as inhumane.

The most important legislation relating to stem cell research is known as the Dickey-Wicker amendment, which first became law in 1996, and has been renewed by Congress every year since. It specifically bans the use of tax dollars to create human embryos – a practice that is routine in private fertility clinics – or for research in which embryos are destroyed, discarded or knowingly subjected to risk of injury.

For a time, the ban stood in the way of taxpayer-financed embryonic stem cell research, because embryos are destroyed when stem cells are extracted from them. But in August 2001, in a careful compromise, President George W. Bush opened the door a tiny crack, by ordering that tax dollars could be used for studies on a small number of lines, or colonies, of stem cells already extracted from embryos — so long as federal researchers did not do the extraction themselves.

Congress continued to be inundated with calls from people suffering from diseases for which stem cells research might be the only hope, and from equally vehement opponents. In 2006, the Republican-controlled Congress passed a bill to expand research. In response, Mr. Bush issued the first veto of his presidency. In 2007, Congress, now in Democratic hands, passed a similar bill by a larger margin, but still not by enough to override the veto that Mr. Bush announced on June 20.

On March 9, 2009, President Obama issued an executive order rescinding the limits set by Mr. Bush and making clear that the government supported stem-cell research.

But in August 2010, Chief Judge Royce C. Lamberth of Federal District Court blocked Mr. Obama’s executive order, saying it violated a ban on federal money being used to destroy embryos.

Judge Lamberth’s order would have caused significant disruption to research, according to administration officials, but an appeals court later ruled that Mr. Obama’s policy could remain in place while the court considered the case.







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  4. In March 2010, researchers at Columbia University announced that they made a tissue-designed jaw bone using mesenchymal stem cells (MSCs) deduced from bone marrow. MSCs naturally give rise to connective tissue such as bone and cartilage, making bone regeneration one of the most studied remedial areas for MSCs today.

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