by RACHAEL RETTNER
Contrary to the belief that women are born with a finite number of eggs, there may in fact be a way to replenish the supply, a new study suggests.
Researchers have isolated stem cells from adult human ovaries that appear to be capable of producing eggs.
The new findings follow a number of recent studies that have suggested such stem cells exist in adult mice, and can give rise to healthy offspring in animals that have had their fertility destroyed by chemotherapy. However, these studies have been controversial, because they go against years of research suggesting otherwise, experts say.
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