Lab-grown human eggs may lead to new treatments for infertility.
In a first-of-its-kind study, researchers from the U.S. and the U.K. revealed their success at growing human eggs to a mature state using early-stage ovarian tissue.
The study authors collected ovarian tissue samples from 10 women during elective Cesarean section surgery. The patients donating the tissue were around the same age and at the end of their pregnancies.
A female human embryo frozen in 1992 was successfully born last November in Tennessee.
The embryo was frozen for 24 years, making it the longest known frozen human embryo in the world.
The healthy 6-pound, 8-ounce baby girl named Emma was born on November 25 to a 25-year old mother, meaning the baby was conceived just one year after her mother's birth, a startling fact even to her parents.