Grow your own Organs

Here is an interesting post by FuturePundit about replacement kidneys being grown in rats from stem cells.

Rats with no new kidneys lived for two to three days, and rats whose new kidneys were disconnected from their bladders lived no longer. However, the rats with new kidneys connected to their bladders lived seven to eight days. "This tells us that the urine-producing functions of the kidney are key to preservation of life," says Rogers. "Seven to eight days may not seem like a long time," adds Hammerman. "However, what we have done is akin to building the first airplane and showing that it can fly, if only for a few minutes. It's just as revolutionary."

Extraordinary stuff.