About a month after taking office in 2009, President Barack Obama issued Executive Order 13505, Removing Barriers to Responsible Scientific Research Involving Human Stem Cells. This order rescinded President George W Bush’s ban on new stem-cell lines for research (with a few exceptions), probably as a result of pressure from religious, anti-abortion groups.
Embryonic stem cells are useful research and clinical tools because they can be used in regenerative medicine, including tissue repair. The first clinical trials started in 2009, and no stem cell therapy has been approved by the FDA as of this time. Some early success in treating post-acute myocardial infarction with stem cells was reported earlier this month.
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