Currents in zebrafish caudal fin regeneration

The team of Joaquín Rodríguez-León recently implicated, for the first time, a  specific channel in the cell membrane, called V-ATPase, in caudal fin regeneration of adult zebrafish. This channel pumps hydrogen ions (H+) out of the cells, thus generating an electrical current that aids correct tissue  regeneration. See the Plos one website and comment on Science daily.