中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (49): 7371-7376.doi: 10.3969/j.issn.2095-4344.2016.49.011

• 心血管损伤动物模型 Animal models of cardiovascular damage • 上一篇    下一篇

股动脉血栓模型兔溶栓前后血管弹性功能变化

虎晓梅,关丽娜,阿丽米娜•阿文,穆玉明   

  1. 新疆医科大学第一附属医院心脏超声诊断科,新疆维吾尔自治区乌鲁木齐市  830054
  • 收稿日期:2016-09-03 出版日期:2016-11-30 发布日期:2016-11-30
  • 通讯作者: 穆玉明,主任医师,教授,博士生导师,新疆医科大学第一附属医院心脏超声诊断科,新疆维吾尔自治区乌鲁木齐市 830054
  • 作者简介:虎晓梅,女,1988年生,新疆维吾尔自治区伊犁霍城县人,回族,新疆医科大学在读硕士,主要从事心血管超声方面工作。
  • 基金资助:

    国家自然科学基金(81301230)

Construction of the femoral artery thrombosis model in rabbits: the arterial elasticity changes before and after thrombolysis

Hu Xiao-mei, Guan Li-na, Alimina•Awen, Mu Yu-ming   

  1. Department of Ultrasound, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • Received:2016-09-03 Online:2016-11-30 Published:2016-11-30
  • Contact: Mu Yu-ming, Chief physician, Professor, Doctoral supervisor, Department of Ultrasound, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • About author:Hu Xiao-mei, Studying for master’s degree, Department of Ultrasound, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81301230

摘要:

文章快速阅读:


文题释义:
血栓近段:文章中血栓近段是指距血栓形成处1 cm处的近心端处动脉,此处动脉未被三氯化铁化学性损伤,避免了因化学性损伤引起的弹性功能改变,更具有研究价值。
溶栓前后:文章中溶栓前后是指血栓形成前(未造栓前)、血栓形成后(血栓完全堵塞动脉,阻断血流)及血栓完全溶解后(溶栓2 h后,动脉完全再通)3部分。
摘要
背景:
应用超声技术评价血管弹性功能变化已在临床研究上广泛应用,而对血栓形成及融通后血栓近段血管弹性功能变化情况的研究较少。
目的:应用超声技术评价溶栓前后兔单侧股动脉血栓近段血管于溶栓前后弹性功能的变化特点。
方法:选取新西兰大白兔30只,成功制作单侧股动脉血栓模型,靶向微泡携带尿激酶在低频超声辅助照射下溶栓,分别于血栓形成前及溶栓前后测量股动脉血栓近段血管的扩张系数、顺应系数、弹性系数、僵硬度、脉搏波传导速度、增强指数及动脉内膜收缩期径向应变、径向应变率。
结果与结论:血栓形成前与血栓形成后动脉弹性对比,血栓形成后血血栓近段动脉弹性系数、僵硬度、脉搏波传导速度、增强指数增大(P < 0.05),血栓近段动脉扩张系数、顺应系数、收缩期径向应变及径向应变率减小(P < 0.05);血栓完全溶解后与血栓形成前动脉弹性对比;血栓完全溶解后血栓近段动脉弹性系数、僵硬度、脉搏波传导速度、增强指数略增大(P < 0.05),血栓近段动脉扩张系数、顺应系数、收缩期径向应变及径向应变率较血栓形成前无统计学差异;血栓形成后与血栓完全溶解后动脉弹性对比。血栓完全溶解后血栓近段动脉弹性系数、僵硬度、脉搏波传导速度、增强指数数值减小(P < 0.05),血栓近段动脉扩张系数、顺应系数、收缩期径向应变及径向应变率增大(P < 0.05)。血栓形成后血栓近段动脉僵硬度增加,弹性功能减退,血栓完全溶解后血栓近段动脉弹性功能恢复,但较正常动脉弹性功能略减低。

中国组织工程研究杂志出版内容重点:肾移植肝移植移植;心脏移植;组织移植;皮肤移植;皮瓣移植;血管移植;器官移植组织工程
ORCID: 0000-0002-2354-8226(虎晓梅)

关键词: 实验动物, 心肺损伤与修复动物模型, 血栓, 近段动脉, 靶向微泡, 超声, 血管弹性, 回波跟踪技术, 应变技术, 国家自然科学基金

Abstract:

BACKGROUND: Ultrasonic technology has been extensively applied to evaluate the vascular elasticity changes, but thrombosis and elasticity changes of the proximal thrombus (the artery of proximal heart, 1 cm distance from the thrombosis) after revascularization are rarely reported.
OBJECTIVE: To evaluate the elasticity changes of the unilateral femoral artery of proximal thrombus in rabbits before and after thrombolysis utilizing ultrasonic technology.
METHODS: Models of unilateral femoral artery thrombosis were successfully prepared in 30 New Zealand white rabbits, and then given thrombolytic therapy by targeted microbubbles carrying urokinase under low- frequency ultrasound. The arterial expansion coefficient, compliance coefficient, elastic coefficient, stiffness, pulse wave velocity, augment index, as well as systolic radial strain and radial strain rate before and after thrombosis and after thrombolysis were determined, respectively.
REAULTS AND CONCLUSION: Compared with before thrombosis, the arterial elastic coefficient, stiffness, pulse wave velocity and augment index were significantly increased in contrast to the significantly decreased arterial expansion coefficient, compliance coefficient, systolic radial strain and radial strain rate after thrombosis (P < 0.05). Thrombolytic therapy significantly increased the arterial expansion coefficient, compliance coefficient, systolic radial strain and radial strain rate and eliminated the arterial elastic coefficient, stiffness, pulse wave velocity and augment index (P < 0.05). In addition, the arterial elastic coefficient, stiffness, pulse wave velocity and augment index after complete revascularization were significantly higher than those before thrombosis (P < 0.05), but there were no significant differences in the arterial expansion coefficient, compliance coefficient, systolic radial strain and radial strain rate between two groups. In conclusion, thrombosis contributes to the increased arterial stiffness and elasticity dysfunction, and thrombolytic therapy can, but not completely, improve artery elastic function.

中国组织工程研究杂志出版内容重点:肾移植肝移植移植;心脏移植;组织移植;皮肤移植;皮瓣移植;血管移植;器官移植组织工程

Key words: Ultrasonography, Thrombosis, Arteries, Tissue Engineering

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