Humans May One Day Be Able to Regrow Lost Fingers, Limbs, or Other Body Parts Thanks to a Serum That Helped Mice Regrow Part of an Amputated Fing

Humans May One Day Be Able to Regrow Lost Fingers, Limbs, or Other Body Parts Thanks to a Serum That Helped Mice Regrow Part of an Amputated Fing

Mice regrew part of an amputated finger after researchers applied two proteins in sequence, rebuilding bone, cartilage, a working joint, and tendon attachments where there should have been a scar. The Texas A&M-led team published the work in Nature Communications. They amputated the middle bone of a neonatal mouse’s digit, a cut that normally heals over with scar tissue and never grows back. Then they waited. Four days in, once the skin had clos…