Viable Eggs Created From Normal Cells

Japan Team Offers Fertility Hope with Stem Cell Eggs.  New York Daily News.  October 5, 2012.

Using mice, Japanese researchers have created viable eggs from normal cell.  Mice stem cells were harvested and genetically altered to create the primordial germ cells that create sperm and eggs. The cells were extracted, fertilized, and implanted into surrogate mother mice.  The mice pups born were healthy and able to reproduce.  With further research this type of approach could be beneficial for reproductive medicine in humans.