“Obtaining cells from amniotic fluid that is already being sampled for standard clinical purposes does not appear to add any physical risks to either fetus or pregnant woman,” she said in an email.
Scientists using cells from fluid drawn during pregnancy to grow mini lungs and other organs
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The optimal scenario for research is to “get as close to a real embryo as possible so you can learn from it, but not a real embryo so you don’t get into debates about the moral status of embryos,” said Alta Charo, a professor emerita of law and bioethics at University of Wisconsin who was not involved in the papers.
Pre-embryos made in lab could spur research, ethics debates
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