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相关概念视频

Bioremediation00:46

Bioremediation

Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.

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先进的深层组织成像和操纵由 biliverdin 减少酶淘汰赛启用.

Ludmila A Kasatkina, Chenshuo Ma, Huaxin Sheng

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    研究人员使用 biliverdin 减少酶-A 淘汰模型增强了近红外 (NIR) 探测器和光遗传工具. 这提高了深层组织成像和光遗传疗法 in vivo 的性能.

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    科学领域:

    • 生物医学工程 生物医学工程
    • 视觉遗传学 视觉遗传学
    • 分子成像学分子成像学

    背景情况:

    • 基于细菌基的近红外 (NIR) 探测器和光遗传工具为生物研究和治疗提供了潜力.
    • 现有的NIR系统在体内应用中面临性能和深度透的限制.

    研究的目的:

    • 开发增强的NIR光声学和光探测器以及光遗传工具.
    • 为了提高这些工具的性能,使用 biliverdin 减少酶-A 淘汰 (Blvra-/-) 模型.
    • 为了证明这些增强系统对糖尿病等疾病的治疗潜力.

    主要方法:

    • 开发NIR探针和由细菌基染色体衍生的光遗传工具.
    • 使用Blvra-/-小鼠模型来增强内源性 Biliverdin 染色体水平.
    • 采用3D光声学,超声波定位显微镜和两光子光成像技术.
    • 在糖尿病模型中评估光控制基因表达和体内葡萄糖降低.

    主要成果:

    • Blvra-/-模型显著提高了NIR结构的性能,光控制转录的性能提高了多达25倍.
    • 与野生类型相比,Blvra-/-神经元的光遗传活性增加了100倍.
    • 在体内研究表明,糖尿病Blvra-/-小鼠的血糖水平降低了~60%.
    • 通过同时使用光声学和超声波显微镜,在大脑中实现了高达7毫米的深层组织成像.

    结论:

    • Blvra-/- 模型是增强依赖于白素的 NIR 系统的一个有前途的平台.
    • 这些先进的工具显示出深层组织生物审讯和光遗传疗法的巨大潜力.
    • 开发的系统克服了深度限制,实现了前所未有的体内成像和操纵能力.