A woman has given birth to a baby after having her ovaries "reawakened" through a new technique developed in Stanford University in the US and St Marianna University School of Medicine, Japan.
ITV News Medical Editor Lawrence McGinty reports:
Doctors in the US and Japan developed the technique to remove the ovaries, activate them in the laboratory and re-implant fragments of ovarian tissue.
The technique, reported in Proceedings of the National Academy of Sciences, has resulted in one baby being born, while another is expected.
The woman was suffering from a condition called primary ovary insufficiency also known as early menopause.
Using a technique called IVA (in vitro activation), researchers removed the woman's ovaries, treated them outside the body, and re-implanted them near her fallopian tubes. The woman was then treated with hormones to stimulate the ovary follicles in which eggs develop.
Although the method was developed specifically for women suffering from primary ovary insufficiency, the researchers at Stanford University plan to investigative whether the technique can be used to treat other types of infertility.
However, several fertility experts have warned women to be cautious in their hopes for the technique. They said the study was on a very small scale and only resulted in a single birth in very specific circumstances.