- Apr 19, 2007
- MBTI Type
- Instinctual Variant
Humans have ‘untapped’ ability to regenerate body parts, scientists say
...researchers just published a new paper in the journal Developmental Dynamics that focuses on the differences between mammals and a very special species of salamander called the axolotl.
Axolotls are severe endangered in the wild but they still exist in captivity. Theyâ€™re incredible creatures with the unique ability to regenerate a wide range of body parts. Sure, some salamanders and other lizards and amphibians are capable of regenerating something like a tail, but the axolotl takes that ability and turns it up to the extreme. Axolotls are capable of regenerating a tail, leg, and skin, but theyâ€™re also able to grow new lungs, ovaries, spinal cords, and even a fresh brain or heart if needed.
In studying what happens to a wound on a molecular level in both axolotls and mice, which are mammals that donâ€™t possess such robust regenerative abilities, the scientists discovered something very interesting. They found that the immune cells that trigger a response after an injury, called macrophages, are the critical link to exploiting an animalâ€™s ability to regrow body parts. More specifically, Godwin demonstrated that when an axolotl had too few of these immune cells to react to an injury, a missing body part couldnâ€™t be regrown and a scar appeared instead. In mice as well as humans, macrophages trigger scarring rather than regeneration, but it may be possible to change that...