Scientists have worked for years for ways to grow body parts. Many efforts have focused on heart valves as an alternative to the plastic or animal valves that wear out after being implanted in humans.

Dr. Richard Hopkins pulls the pink ring of tissue out of a bubbling vat and slices it open to reveal a heart valve's delicate leaflets. Hopkins is creating a way for people to literally grow new ...

Nearly half a century after the Texas Medical Center led the era's bold attempt to develop an artificial heart, two area institutions are partnering to grow a natural heart. "We get to make an ...