Ovarian Cells Yield Human Eggs

Scientists in Tennessee have scraped stem cells from the surface of five women's ovaries and coaxed the cells to become human eggs. The work, which was published in Reproductive Biology and Endocrinology, could extend a woman's fertility for a decade or more if future experiments show that the eggs are capable of becoming fertilized. The five women who volunteered for the study ranged in age from 39 to 52.