AIMS: To develop a reproducible and accessible model of elastase-induced fusiform aneurysm in carotid rabbit arteries. METHODS: Elastase, at a concentration of 1-30 U, was incubated into the lumen of carotid rabbit arteries. Four weeks later, angiography, histomorphometry, immunohistochemistry and zymography were performed. RESULTS: The optimal concentration of elastase in this model was 3 U according to the balance between mortality and thrombosis rates. Indeed, at 3 U, external carotid diameter increased from 1.9 +/- 0.1 to 3.1 +/- 0.4 mm (p < 0.0001) associated with degradation of elastic fibers, matrix metalloproteinase-9 secretion, apoptosis and macrophage infiltration. CONCLUSIONS: Our study underlines that abdominal aortic aneurysm can be reliably duplicated in an elastase-induced aneurysm in carotid artery, a much more accessible vessel. Copyright 2009 S. Karger AG, Basel.
AIMS: To develop a reproducible and accessible model of elastase-induced fusiform aneurysm in carotid rabbit arteries. METHODS: Elastase, at a concentration of 1-30 U, was incubated into the lumen of carotid rabbit arteries. Four weeks later, angiography, histomorphometry, immunohistochemistry and zymography were performed. RESULTS: The optimal concentration of elastase in this model was 3 U according to the balance between mortality and thrombosis rates. Indeed, at 3 U, external carotid diameter increased from 1.9 +/- 0.1 to 3.1 +/- 0.4 mm (p < 0.0001) associated with degradation of elastic fibers, matrix metalloproteinase-9 secretion, apoptosis and macrophage infiltration. CONCLUSIONS: Our study underlines that abdominal aortic aneurysm can be reliably duplicated in an elastase-induced aneurysm in carotid artery, a much more accessible vessel. Copyright 2009 S. Karger AG, Basel.
Authors: Yanxia Lyu; Jie Luo; Yonghong Zhang; ChaoJia Wang; AnRong Li; Yi Zhou; EnFu Du; Hui Wang; JunTao Hu Journal: Biomed Res Int Date: 2020-08-26 Impact factor: 3.411
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