New Serum Triggers Digit Regrowth in Mice, Advancing Human Limb Regeneration Research

Imagine losing a finger in a kitchen mishap or an entire limb in an accident. Instead of learning to adapt to a prosthetic, your doctor prescribes you a serum.

A few months later, your bone, muscle, nerves, and skin have perfectly knit themselves back together. Your limb is entirely regrown.

It sounds like pure science fiction, but scientists are currently working to unlock the secrets of limb regeneration in mammals, drawing inspiration from salamanders.

Axolotls, a type of salamander, can take roughly 40 to 50 days to regrow lost limbs, which is a flash compared to humans and other mammals.

A new serum helped mice regrow part of a digit by triggering blastema formation, hinting at a future path toward human limb regeneration.