Loss of lncRNA H19 impairs neonatal cardiac regeneration Erika Anneliese Hilbold, Alessia Costa, Sarah Cushman, Maximilian Fuchs, Karina Jansen, Anton Selich, Cheng-Kai Huang, Bernhard Johannes Haubner, Thomas Thum, Christian Bär AJP Cell Physiology Published online on July 17, 2026 Abstract American Journal of Physiology-Cell Physiology, Volume 331, Issue 2, Page C358-C372, August 2026.