Macrophages with nanoparticles (IMAGE) Washington University School of Medicine Caption Nanoparticles (red) are taken up by immune cells (green with blue nuclei). Researchers at Washington University School of Medicine in St. Louis have shown that an experimental nanoparticle-based drug therapy protects mice from sudden death due to the rupture of a major blood vessel in the abdomen, pointing the way toward a new strategy for treating deadly abdominal aortic aneurysms. Credit Huimin Yan/Washington University Usage Restrictions This image is to be used in accordance with the mission, policies and guidelines of Washington University in St. Louis. Visit https://wustl.edu/about/compliance-policies/media-policies/multimedia-use/ for more information. License Original 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.