Spinal cord damage blocks the routes that the brain uses to send messages to the nerve cells that control walking. Until now, doctors believed that the only way for injured patients to walk again was to re-grow the long nerve highways that link the brain and base of the spinal cord.

By using a process called whole organ decellularization, scientists from the University of Minnesota Center for Cardiovascular Repair grew functioning heart tissue by taking dead rat and pig hearts and reseeding them with a mixture of live cells.

Many researchers have tried to create a mathematical model of how cells pack together to form tissue, but most models have many different complicated factors, and no model is universal. Researchers at

Japanese researchers from RIKEN and Kyoto University have demonstrated retinal regeneration in a mammalian model of retinal degeneration after stimulation of the Wnt signaling pathway, which functions

In the rancorous public debate over federal research funding, stem cells are generally assigned to one of two categories: embryonic or adult. But that’s a false dichotomy and an oversimplification.

University of Delaware scientists have invented a novel biomaterial with surprising antibacterial properties that can be injected as a low-viscosity gel into a wound where it rigidifies nearly on contact–opening the door to the possibility of delivering a targeted payload of cells and antibiotics to repair the damaged tissue.

This is an excellent video by Alan Russell, who studies regenerative medicine. Regenerative medicine is a breakthrough way of thinking about disease and injury by helping the body to rebuild itself. H

Researchers have shown that bone marrow stem cells injected into a damaged inner ear can speed hearing recovery after partial hearing loss. The related report by Kamiya et al, “Mesenchymal stem cell

Fibrinogen, a blood-clotting protein found in circulating blood, has been found to inhibit the growth of central nervous system neuronal cells, a process that is necessary for the regeneration of the spinal cord after traumatic injury.

Researchers have identified a new population of stem cells that act to repair muscle after damage. Until now, researchers had assumed that all of these cells, which are called satellite cells, had similar properties.