US-based Conception said more work is needed to grow the eggs to full maturity, but called the achievement a 'major ...

TOKYO — Doctors may eventually be able to tell whether your cells are aging prematurely without needles, blood tests, or expensive lab work. Japanese researchers have developed an experimental ...

Researchers have developed mice with organs containing human cells, using a convenient and surprising approach — injecting the cells directly into the amniotic fluid of pregnant mice. The method ...