Journal of Atherosclerosis and Thrombosis
Online ISSN : 1880-3873
Print ISSN : 1340-3478
ISSN-L : 1340-3478
Original Article
A Rabbit Model of Spontaneous Thrombosis Induced by Lipopolysaccharide
Haixia LiuJingbo HouSining HuXiumin DuYan FangHaibo JiaLinxing FengLinna ZhangJie DuQi ZhaoZulong XieBo Yu
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2014 Volume 21 Issue 10 Pages 1075-1086

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Abstract

Aim: Inflammation plays a critical role in the development of atherosclerotic plaque, and lipopolysaccharide (LPS) is a potentially important source of inflammation. The aim of this study was to develop a rabbit model of spontaneous thrombosis mimicking the pathophysiological and morphological characteristics of atherosclerotic plaque in humans.
Methods: The rabbits were randomized into four groups: group A (n=10) received a normal diet; group B (n=10) received a regular diet and weekly LPS injections (1 μg/kg, Escherichia coli); group C (n=15) received a cholesterol-enriched diet before and after sustaining a balloon injury to the right common carotid artery; and group D (n=15) was treated the same as group C in addition to receiving LPS injections. The morphological characteristics of the resulting lesions were evaluated using optical coherence tomography (OCT) and histology.
Results: No significant atherosclerotic plaque was observed in groups A or B. Group D exhibited a higher incidence of spontaneous luminal thrombi than group C or B (60% vs. 20% vs. 10%, p<0.05). All of the thrombi detected with OCT were confirmed on histology. A good correlation between the fibrous cap thickness and thrombus arc was obtained on OCT and the histological evaluations.
Conclusions: A rabbit model of LPS-induced spontaneous thrombosis was developed in which OCT was used to follow changes in plaque morphology.

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この記事はクリエイティブ・コモンズ [表示 - 非営利 - 継承 4.0 国際]ライセンスの下に提供されています。
https://creativecommons.org/licenses/by-nc-sa/4.0/deed.ja
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