The Federal Drug Administration has approved the first human trials of embryonic stem cells — a sign of a new, liberal attitude toward stem cell research, which was hamstrung by the Bush administration.
Starting this summer, the biotech firm Geron will treat a small group of spinal-cord injury patients using neurons derived from stem cells, marking the first time embryonic stem cells will be tested in humans.
The trial is designed to test the safety of the treatment, not how well it works. Nonetheless, it’s a huge first step for the field.
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