Although stem cell research is the target of much discussion, debate and two presidential vetoes, a noted biology professor and author points out that stem cell research has been taking place for more ...

Critical proteins involved in animal stem cell regulation are much older than previously thought, predating the origin of animals that likely evolved more than 700 million years ago. This is the ...

Two adult mouse pituitary glands. On the left, gonadotrophs derived after birth from stem cells appear in yellow. On the right, gonadotrophs in the embryo appear in green/yellow in the centre of the ...