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JoVE Journal
Neuroscience
电刺激平装视网膜中的钙成像
电刺激平装视网膜中的钙成像
JoVE Journal
Neuroscience
This content is Free Access.
JoVE Journal Neuroscience
Calcium Imaging In Electrically Stimulated Flat-Mounted Retinas

电刺激平装视网膜中的钙成像

Full Text
2,405 Views
07:25 min
August 18, 2023

DOI: 10.3791/65705-v

Marina Cunquero1, Maria Marsal1, Gustavo Castro-Olvera1, Steven T. Walston2, F. Taygun Duvan2, José Gabriel Macias-Montero3, Carles Puigdengoles3, Mokhtar Chmeissani3, Jose A. Garrido2,4, Pablo Loza-Alvarez1

1Institut de Ciències Fotòniques (ICFO),The Barcelona Institute of Science and Technology, 2Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST,Campus UAB, 3Institut de Física d'Altes Energies (IFAE),The Barcelona Institute of Science and Technology, Campus UAB, 4Institució Catalana de Recerca i Estudis Avançats (ICREA)

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Please note that some of the translations on this page are AI generated. Click here for the English version.

Summary

视网膜假体具有产生视觉感知的能力。为了推进新型假体的开发,需要在植入前使用 离体 方法对设备进行测试。本文提供了一个全面的方案,用于研究视网膜神经节细胞层在受到电刺激时的钙活性。

Transcript

尽管已经尝试使用离体方法测试视网膜植入式设备,但一直缺乏从样本采集到数据分析的全面而详细的协议。通过这项工作,我们的目标是填补这一空白,为来自不同背景的研究人员提供必要的工具,让他们自信地进行神经视网膜刺激实验。钙成像是一种用于研究神经活动的流行技术,与非光学方法相比具有多项优势。

它提供细胞分辨率,可以靶向特定的细胞类型。它对于测试新的 MEA 特别有用,因为它允许在电刺激时区分活性和非活性细胞。我们正在引入一种强大的方法,通过使用钙成像来研究视网膜神经元的反应。

这种方法可以提供对细胞选择性激发的见解,这是开发更好的刺激方案、提高植入物性能和推进技术水平的关键一步。我们的实验室专注于开发先进的显微镜技术。目前,我们正致力于以3D形式记录钙动力学,以更好地了解整个组织中的负相互作用。

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钙成像 电刺激 平装视网膜 视网膜营养不良 失明 视网膜假体 感光细胞受损 视力恢复 植入式设备 电极 体外法 功能验证 体内实验 钙活性 视网膜神经节细胞层 (GCL) 基因编码钙指示剂 荧光信号 倒置荧光显微镜 电刺激 钙痕量分析

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