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首页> 外文期刊>Optics Letters >Longitudinal, multimodal functional imaging of microvascular response to photothermal therapy
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Longitudinal, multimodal functional imaging of microvascular response to photothermal therapy

机译:纵向,多峰功能成像的微血管对光热疗法的反应

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摘要

Although studies have shown that photothermal therapy can coagulate selectively abnormal vasculature, the ability of this method to achieve consistent, complete removal of the vasculature is questionable. We present the use of multimodal, wide-field functional imaging to study, in greater detail, the biological response to selective laser injury. Specifically, a single-platform instrument capable of coregistered fluorescence imaging and laser speckle imaging was utilized to monitor vascular endothelial growth factor gene expression and blood flow, respectively, in a transgenic rodent model. Collectively, the longitudinal, in vivo data collected with our instrument suggest that the biological response to selective laser injury involves early-stage redistribution of blood flow, followed by increased vascular endothelial growth factor promoter activity to stimulate pro-angiogenic events.
机译:尽管研究表明光热疗法可以选择性地凝结异常的脉管系统,但这种方法能否持续,完全地去除脉管系统还是值得怀疑的。我们目前使用多模式,广域功能成像来更详细地研究选择性激光损伤的生物学反应。具体地,在转基因啮齿动物模型中,利用能够进行配准荧光成像和激光散斑成像的单平台仪器分别监测血管内皮生长因子基因的表达和血流量。总的来说,用我们的仪器收集的体内纵向数据表明,对选择性激光损伤的生物学反应涉及早期血流的重新分布,然后增加血管内皮生长因子启动子的活性以刺激促血管生成事件。

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