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JoVE Encyclopedia of Experiments
Neuroscience
使用近红外荧光成像对小鼠脑血栓进行可视化
使用近红外荧光成像对小鼠脑血栓进行可视化
Encyclopedia of Experiments
Neuroscience
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Encyclopedia of Experiments Neuroscience
Visualization of Mouse Cerebral Thrombi Using Near-Infrared Fluorescence Imaging

使用近红外荧光成像对小鼠脑血栓进行可视化

Protocol
252 Views
01:45 min
August 13, 2025
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Please note that some of the translations on this page are AI generated. Click here for the English version.

Transcript

首先切除小鼠脑组织,脑血管中含有血栓或血凝块。

血栓用近红外荧光或 NIRF 探针标记,该探针在血栓成熟期间与纤维蛋白链共价结合。

将

脑组织置于近红外成像仪中,将大脑底部或腹侧朝上放置,以对主要脑动脉中的血栓进行成像。

将

近红外光照射到脑组织,激发标记血栓中的 NIRF 探针。

激发后,探头发射更长波长的光。

这会导致血栓发出荧光并在黑暗背景下显得明亮,从而最大限度地减少周围组织的干扰。

接下来,倒置脑组织并对大脑的背侧进行成像,以可视化小皮质血管中的血栓。

这确保了脑组织中血栓的完整可视化,具有高对比度。

要通过离体近红外成像观察血栓,请将切除的脑组织放入成像仪中,底部朝上。获得威利斯环动脉中荧光标记的血栓栓塞的图像。然后,定位组织,顶点朝上并成像皮质血栓栓塞。

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