Edited sentence: A recent animal study published in the journal Nature Medicine showed that removing a single protein prevents early damage in blood vessels from triggering a later-stage, frequently lethal complication of atherosclerosis.By eliminating the gene for a signaling protein called cyclophilin A (CypA) from a strain of mice, researchers were able to provide complete protection against abdominal aortic aneurysm (AAA).New endovascular devices are being developed that are able to treat more complex andtortuous anatomies