People can recreate the limbs themselves

In fantasy films, superheroes hands and feet regrow after they are cut off. Scientists claim that someday ordinary people will have similar capabilities.

Some amphibians can regenerate lost or damaged parts of their bodies. For example, when the species dies, a small bump will quickly form above the wound. People call it the root germ ( blastema ). Within a few weeks the original sprouts transform into a new genus that is capable of acting exactly the same as the old one and leaving no scars.

Initially, the scientific community believed that the ability to regenerate body parts of the body is not related to the healing mechanism of human wounds. But researchers from the University of Florida (USA) discovered that this ability is not so mysterious and magical as one might think. We can even find ways to use it on humans.

' The ability of the body to revive its body is very similar to the healing process of mammals. We have the right to hope that human beings will one day be able to replicate tissues themselves , 'said Professor Malcolm Maden, a University of Florida biologist.

Axolotl in Mexico is also called a water monster because of its strange shape. (Photo: National geographic)

Maden and colleagues studied Axolotl - a native of Mexico and capable of reproducing all parts, including the heart. At first, they thought that a cell called " pluripotent " in the body could turn into all their tissues and organs when needed. But then the team found that the process of regenerating the body's parts is only a bit more complicated than the process of wound healing in humans and mammals.

Stem cells are the agents that cause these two processes. But at the same time, stem cells have the ability to recognize cells of the same type. So they arrange themselves in the correct order to reproduce the lost or damaged part. Mammalian stem cells can heal wounds or connect broken bones, but they cannot regenerate limbs or spinal nerves.

The research team asserts that imitating the ability to regenerate limbs is something that current science can do . The regeneration mechanism is so perfect that it leaves no scars. People can also learn that mechanism.

Maden said his team will continue to research to find out why the stem cells of the blood can recognize each other and arrange themselves in order to reproduce their organs. " If you understand the reason that thunderstorms can regenerate body parts, you'll understand why mammals can't do the same thing ," he said.