Do the ovaries generate new oocytes after birth?


Conventional wisdom says a woman is born with a set number of eggs, which are gradually exhausted over time. But a new animal study threatens to turn that dogma on its ear. Harvard researchers have discovered that mouse ovaries apparently create new oocytes throughout the animal's reproductive years. Of course, these findings have to be confirmed and similar research has to prove it applies to humans. But, according to the American Society for Reproductive Medicine: "If we could tap the follicle reserve as a means to postpone ovarian failure, that could be the most significant advance in reproductive medicine since the advent of in vitro fertilization more than 25 years ago."

Johnson J, Canning J, Kaneko T et al. Germline stem cells and follicular renewal in the postnatal mammalian ovary. Nature, 2004; 428: 145-150.

Related Videos
One year out: Fezolinetant displays patient satisfaction for managing hot flashes | Image Credit:
Addressing maternal health inequities: Insights from CDC's Wanda Barfield | Image Credit:
Addressing racial and ethnic disparities in brachial plexus birth Injury | Image Credit:
Innovations in prenatal care: Insights from ACOG 2024 | Image Credit:
Unlocking therapeutic strategies for menopausal cognitive decline | Image Credit:
Navigating menopause care: Expert insights from ACOG 2024 | Image Credit:
raanan meyer, md
Related Content
© 2024 MJH Life Sciences

All rights reserved.