ROCKVILLE, Md.--(BUSINESS WIRE)--RegeneRx Biopharmaceuticals, Inc. (NYSE Amex:RGN) (“the Company” or “RegeneRx”) today announced that a research team from the Molecular Medicine Unit at UCL-Institute of Child Health in London reported preclinical findings that Thymosin beta 4 (Tß4), is essential to healthy heart development and embryonic survival.