A new short amino acid peptide, called Tylotoin, from the skin of the salamander stimutates EGF (epidermal growth factor), and growth factors beta1 and interleukin6, and is being used in the treatment of wounds.  Salamanders are able to re-grow lost limbs and damaged tissue.  Gerald Weissmann, M.D., Editor-in-Chief of The FASEB Journal, says "Until now, rapid wound healing has been the stuff of superheroes and science fiction...Now, we are taking concrete steps to mimic this ancient, and forgotten, healing process in our own bodies."