Male Mouse Cells Used to Create Viable Eggs and Offspring

Scientists have created viable eggs from the cells of male mice using a new approach, according to findings presented at the Third International Summit on Human Genome Editing in London. The eggs, which were fertilized using mouse sperm and implanted into female mice, produced healthy, fertile offspring, although only seven out of 630 transferred embryos survived. While the findings offer a potential new way of treating infertility, the scientists cautioned that the differences between mice and humans are significant and that further research is required. The research has not yet been published and raises a host of ethical questions.


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