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修改的内动脉瘤破裂鼠标模型与血管图像成像

William Wei-Lin Pan^1,2, Masahiko Itani^3,4, Kostadin Karagiozov¹

¹Department of Neurosurgery, The Jikei University School of Medicine, 3-25-8 Nishi-Shinbashi, Minato-Ku, Tokyo, 105-8461, Japan.

Translational stroke research

|July 16, 2025

概括

这项研究提出了一个改进的小鼠模型,用于内动脉瘤 (IAs),实现高形成和破裂率. 数字减去血管学可视化了关键特征,增强了IA开发和治疗的研究.

科学领域:

神经科学和神经病学神经科学和神经病学
血管生物学血管生物学
疾病的动物模型.

背景情况:

内动脉瘤 (IAs) 是次关节出血 (SAH) 的重要原因,导致高发病率和死亡率.
现有的IA动物模型往往患有低破裂率和不充分的成像,限制了它们的临床相关性.
翻译性研究需要强大的模型,准确地模仿人类AI发展和断裂动态.

研究的目的:

开发和验证一种基于弹性酶的改性大鼠模型,用于诱导内动脉瘤 (IAs).
结合先进的血管图像技术,实时监测IA形成和破裂.
为研究IA病理生理学和评估治疗策略建立可靠的临床前工具.

主要方法:

在雌性Sprague-Dawley大鼠中通过手术和药理干预来诱导IA,包括将弹性酶注入基底水库.
使用数字减去血管学 (DSA) 评估动脉瘤形成,破裂率和血管形态.
组织学和免疫组织化学分析以表征动脉瘤壁结构和炎症细胞透.

主要成果:

修改后的模型显示,在28天内IA形成 (85%) 和破裂 (60%) 的发生率很高.
DSA成功地可视化了血管曲和血液动力学流动模式,反映了人类AI发展的特征.
组织学发现显示了动脉瘤壁的结构性降解,免疫组织化学表明中性粒细胞透,表明炎症作用.

结论:

这种增强的基于弹性酶的老鼠模型为诱导和可视化具有高破裂率的IA提供了一种可靠的方法.
集成DSA提供了实时监控功能,这对于了解IA进展和断裂机制至关重要.
这种改进的模型作为一种有价值的临床前工具,可以促进对内动脉瘤病理生理学和治疗的研究.

关键词:

数字减去血管学图.血液动力学力是指血液动力学力.内动脉瘤内动脉瘤鼠模型鼠模型甲状腺下下垂体出血

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