Access

News

Nature 436, 609 (4 August 2005) | doi:10.1038/436609a; Published online 3 August 2005

Bone cells linked to creation of fresh eggs in mammals

Claire Ainsworth

Top

Hackles rise over claims on ovulation.

A claim that stem cells in bone marrow and blood can restock mammalian ovaries with eggs is raising hackles among reproductive biologists. If true, the finding opens up avenues for delaying the menopause and preserving fertility in female chemotherapy patients.