Scientists Regrow Frog’s Lost Leg

For millions of patients who have lost limbs for reasons ranging from diabetes to trauma, the possibility of regaining function through natural regeneration remains out of reach. Regrowth of legs and arms remains the province of salamanders and superheroes. But in a study published online on January 26, 2022 in Science Advances, scientists at Tufts University and Harvard University’s Wyss Institute have brought us a step closer to the goal of regenerative medicine. The article is titled “Acute Multidrug Delivery Via a Wearable Bioreactor Facilitates Long-Term Limb Regeneration and Functional Recovery In Adult Xenopus laevis.”