Abdominal aortic aneurysm (AAA) is associated with increased plasma levels of microRNA (miR) -10b. 5 nmols of miR-10b or miR control was administrated to Apolipoprotein E-deficient mice three days prior implantation of osmotic mini-pumps containing angiotensin II, and for three additional times once a week, which increased expression of miR-10b in plasma. Animals receiving miR-10b had a mortality rate due to aortic rupture of 61% compared to 11% in the miR controls (p De två första författarna delar förstaförfattarskapet.