The salamander can only regenerate a limb. In man there are also stem cells, which are undifferentiated that have potential to also regenerate.
A study showed injection of umbilical cord blood stem cells into men resulted in improved erectile function. This is only a pilot experiment, but shows great promise.
>>>Aren't you glad you're not a salamander? Just kidding, I know you don't need it. You're Persian, you'll last til 102, Ladies, you can rest easy too. ;o)