Reversing Heart-Attack Damage (IMAGE) Boston Children's Hospital Caption A two-drug approach -- overcoming a natural inhibitor of cell division and supplying a growth factor to spur blood-vessel growth -- markedly reduced scarring of rats' heart tissue after a simulated myocardial infarction and also reduced thinning of the left-ventricular wall. Image A shows a section of uninjured heart, B an injured heart that was untreated, and C an injured heart treated with FGF1 and a p38 MAP kinase inhibitor. Scar tissue is indicated in blue, and muscle tissue in red. Credit Courtesy Felix Engel, PhD, Children's Hospital Boston Usage Restrictions Please credit as indicated. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.