They removed the living cells from a natural rat kidney, leaving them with a frame of collagen. They then filled the hollowed organ again with a mixture of cells, including cells from the kidneys ...

Bioengineered kidneys transplanted into rats filter blood and produce urine, an achievement that points the way to replacement kidneys for humans. “The real value of this study is that it’s the kidney ...

but scientists have taken the important first steps by creating whole functioning organs in rats. Here are some recent successes: Heart: One of the earliest demonstrations of the scaffolding ...

For example, scientists recently reported the successful growth of mouse pancreases inside of rats. The ultimate goal of this type of work is to grow human organs inside of other animals as a ...

The mucosal layer in the small intestine degrades with age in rats, allowing digestive enzymes to slowly escape and leak into organs outside the intestine, including the liver, lung, heart ...

Mice and rats, two separate species that have evolved ... Researchers have also been exploring the possibility of growing human organs in other species, such as pigs, using blastocyst complementation.

The team’s engineered esophagi included not only differentiated muscle cells, but also nerves and blood vessels, which are key to the survival of the implanted organs. (Stay tuned for a May feature on ...