[Source: Washington Post]
By Rob Stein
Washington Post Staff Writer
Sunday, August 29, 2010; 6:14 PM
Even as supporters of human embryonic stem cell research are reeling from last week’s sudden cutoff of federal funding, another portentous landmark is quietly approaching: the world’s first attempt to carefully test the cells in people.
Scientists are poised to inject cells created from embryonic stem cells into some patients with a progressive form of blindness and others with devastating spinal cord injuries. That’s a welcome step for researchers eager to move from the laboratory to the clinic and for patients hoping for cures. But beyond being loathsome to those with moral objections to any research using cells from human embryos, the tests are worrying many proponents: Some argue that the experiments are premature, others question whether they are ethical, and many fear that the trials risk disaster for the field if anything goes awry.
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