Medical research

Researchers build embryo-like structures from human stem cells

Research on human embryos is vital to understanding the earliest stages of human development. Currently, this research is conducted on surplus embryos willingly donated by individuals who have undergone in vitro fertilization. ...

Medical research

In a dish, a mouse, crafted from stem cells, begins to form

The tiny mouse embryo has a heart that beats. Its muscles, blood vessels, gut and nervous system are beginning to develop. But this embryo is unusual: It was made in a lab, out of mouse embryonic stem cells, and represents ...

page 3 from 19