Clearing the Air (IMAGE) Cincinnati Children's Hospital Medical Center Caption This microscopic image shows tissues from an adult mouse lung in which the FOXF1 gene has been deleted in endothelial cells for two weeks. The lungs undergo thickening of tiny air sacs called alveolar and develop congestion and severe inflammation. This leads to pulmonary hemorrhaging, fibrosis in the lungs and death. In laboratory tests, an experimental compound being developed by researchers at Cincinnati Children's Hospital Medical Center stabilizes FOXF1 and allows the lungs to recover. Researchers report their findings April 19 in the journal Science Signaling. Credit Cincinnati Children's Usage Restrictions None 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.