TY - JOUR A1 - Rowinska, Zuzanna A1 - Gorressen, Simone A1 - Merx, Marc W. A1 - Koeppel, Thomas A. A1 - Liehn, Elisa A. A1 - Zernecke, Alma T1 - Establishment of a New Murine Elastase-Induced Aneurysm Model Combined with Transplantation T2 - PLOS ONE N2 - Introduction: The aim of our study was to develop a reproducible murine model of elastase-induced aneurysm formation combined with aortic transplantation. Methods: Adult male mice (n = 6-9 per group) underwent infrarenal, orthotopic transplantation of the aorta treated with elastase or left untreated. Subsequently, both groups of mice were monitored by ultrasound until 7 weeks after grafting. Results: Mice receiving an elastase-pretreated aorta developed aneurysms and exhibited a significantly increased diastolic vessel diameter compared to control grafted mice at 7 week after surgery (1.11 +/- 0.10 mm vs. 0.75 +/- 0.03 mm; p <= 0.001). Histopathological examination revealed disruption of medial elastin, an increase in collagen content and smooth muscle cells, and neointima formation in aneurysm grafts. Conclusions: We developed a reproducible murine model of elastase-induced aneurysm combined with aortic transplantation. This model may be suitable to investigate aneurysm-specific inflammatory processes and for use in gene-targeted animals. KW - abdominal aortic-aneurysm KW - mouse models KW - prediction KW - dilation KW - rupture Y1 - 2014 UR - https://opus.bibliothek.uni-wuerzburg.de/frontdoor/index/index/docId/11577 UR - https://nbn-resolving.org/urn:nbn:de:bvb:20-opus-115774 SN - 1932-6203 VL - 9 IS - 7 ER -