WASHINGTON (AP) — Oregon scientists used human skin cells to create fertilizable eggs, a step in the quest to develop lab-grown eggs or sperm to one day help people conceive. But the experiment ...

In a medical first, scientists in Haifa, Israel, took skin cells from two heart failure patients and reprogrammed them into stem cells that generated healthy, beating heart muscle cells in the lab.

This undated image provided by the Mitalipov Laboratory at Oregon Health & Science University shows a a microscope image of a human egg that contains a nucleus taken from a skin cell. (Mitalipov ...