THE TRANSHUMANIST SCRAPBOOK: REGENERATED RAT LIMB SUCCESSFULLY GROWN, ...June 18, 2015
Here's another story for your transhumanism scrapbook (in this case, shared by Mr. M.N.); the U.K.'s Daily Mail is reporting in a very interesting article, that scientists have now successfully "reanimated" a dead rat limb, transplanted it onto a rat, which was then able to use the resuscitated limb in a limited way:
Here's the crux of the story:
Hands, arms and even legs, can be transplanted, but the operations are complex and patients have to take powerful immunosuppressant drugs - which weaken the immune system to prevent the rejection of a transplant - for life.
In contrast, a lab-grown arm or leg should look and move more naturally.
And because it is made out of the person's own cells, no immunosuppression would be needed.
Dr Ott, who has previously made kidneys, livers, lungs and even beating hearts in the lab, began by taking a forearm from a dead rat.
He then washed it in detergent to stop its cells, leaving only a framework behind.
The frame was then placed in an incubator-type jar, injected with healthy blood vessel and muscle cells, and fed nutrients and oxygen.
In just two to three weeks, the blood vessels and muscles had rebuilt, this week's New Scientist reports.
When the limb was attached to a living rat, blood quickly flowed through it.
The creature was even able to flex its new paw.
A new limb would then be created using the framework of a donated limb and the patient's own cells.