Severed limbs completely restored to the bone tissue, nerves and blood vessels.
American tufts University scientists have managed to “force” frogs to grow new legs. This was reported in the journal Cell Reports, Reports the online edition of the Chronicle.info with reference to the Correspondent.
Amputated limbs were restored with the help of hormones. Experts conducted an experiment on nine amphibians, which withdrew the limb. For the study chose frogs because many amphibians have a mechanism to regenerate limbs.
Nine smooth spacewith frogs amputated legs and placed them in a bioreactor with a gel that contains the hormone progesterone. Animal got through the day, after which their limbs were growing back within nine months.
Bone, nerve and muscle tissue fully recovered, “region” vessels. Under the influence of hormones were not able to form only the foot.