According to the Telegraph.UK:
Researchers used eggs from young donors to repair damaged eggs of older women in order to increase their chances of fertilization.
They have not yet used the eggs to produce babies, but they have injected them with sperm to produce an early stage embryo in the laboratory.
While the move breathes new life into “old eggs” and could also remove genetic illnesses, it is likely to provoke an ethical storm as critics believe it could lead to hybrid or genetically modified children.
“If we could transfer these constructed new embryos, I believe the success rate would be high,” Atsushi Tanaka, the lead author told the New Scientist.
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