Scientists have created baby mice with two fathers for the first time by turning male mouse stem cells into female cells and producing functional ova.
This raises the distant possibility of using the same technique for people — although experts caution that very few of the mouse embryos developed into live mouse pups and no one knows whether it would work for humans.and reproductive expert at UC San Francisco, who was not involved in the research. “It’s an important step in both stem cell and reproductive biology.
The pups appeared to grow normally and were able to become parents themselves in the usual way, research leader Katsuhiko Hayashi of Kyushu University and Osaka University in Japan told fellow scientists at the Third International Summit on Human Genome Editing last week. In a commentary published alongside the Nature study, Laird and her colleague, Jonathan Bayerl, said the work “opens up new avenues in reproductive biology and fertility research” for animals and people. Down the road, for example, it might be possible to
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