NEWS 11 July 2025 Mini hearts, lungs and livers made in lab now grow their own blood vessels These sophisticated models will be used for human-development studies and drug testing.

There’s a huge need for more transplantable hearts. Hundreds of thousands of adults suffer from advanced heart failure, yet many are never even offered a transplant because of the organ shortage.

That's why many specialists say finding ways to use more of those hearts is crucial. The new studies are small and early-stage but promising, said Brendan Parent of NYU Langone Health, who directs ...