Intraluminal exposure of the infrarenal aorta to porcine pancreatic elastase represents one of the most commonly used experimental models of the development and progression of abdominal aortic aneurysms. Morphological and histological effects of elastase on the aortic wall have been well documented in multiple rodent models, but there has been little attention to the associated effects on mechanical properties. In this paper, we present the first biaxial mechanical data on, and associated nonlinear constitutive descriptors of, the effects of elastase on the infrarenal aorta in mice. Quantification of the dramatic, acute effects of elastase on wall behavior in vitro is an essential first step toward understanding the growth and remodeling of aneurysms in vivo, which depends on both the initial changes in the mechanics and the subsequent inflammation-mediated turnover of cells and extracellular matrix that contributes to the evolving mechanics. (C) 2011 Elsevier Ltd. All rights reserved.
Acute mechanical effects of elastase on the infrarenal mouse aorta: Implications for models of aneurysms
Creators
M. J. Collins - Texas A&M University
J. F. Eberth - University of Houston
E. Wilson - Texas A&M Health Science Center
J. D. Humphrey - Yale University
Publication Details
Journal of biomechanics, v 45(4), pp 660-665
Publisher
Elsevier
Number of pages
6
Grant note
R01HL105297 / NATIONAL HEART, LUNG, AND BLOOD INSTITUTE; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Heart Lung & Blood Institute (NHLBI)
R01 HL105297 / NIH; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA
Resource Type
Journal article
Language
English
Academic Unit
School of Biomedical Engineering, Science, and Health Systems
Web of Science ID
WOS:000301748800006
Scopus ID
2-s2.0-84856693622
Other Identifier
991021902594104721
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