Spectral domain optical coherence tomography in mouse models of retinal degeneration.

Spectral domain optical coherence tomography in mouse models of retinal degeneration.
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DOI:
10.1167/iovs.09-3724
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发表时间:
2009-12
影响因子:
4.4
通讯作者:
Fischer MD
Fischer MD
中科院分区:
医学2区
文献类型:
--
作者:
Huber G;Beck SC;Grimm C;Sahaboglu-Tekgoz A;Paquet-Durand F;Wenzel A;Humphries P;Redmond TM;Seeliger MW;Fischer MD

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谱域光学相干断层扫描 (SD-OCT) 可实现体内视网膜结构的横截面可视化。在这里,我们报告了市售 SD-OCT 设备在研究小鼠视网膜变性模型方面的功效。使用共焦扫描激光检眼镜 (cSLO) 进行面部可视化,使用 SD-OCT 进行视网膜结构的横截面成像,对 C57BL/6 和 BALB/c 野生型小鼠以及三种不同的遗传性视网膜变性小鼠模型(Rho-/-、rd1、RPE65-/-)进行研究。进行组织学检查,将 SD-OCT 的结构发现与光学显微镜数据相关联。在 C57BL/6 和 BALB/c 小鼠中,cSLO 和 SD-OCT 成像提供了常用对照动物的结构细节(中央视网膜厚度,CRTC57BL/6 = 237±2μm 和 CRTBALB/c = 211±10μm)。 11个月大的RPE65-/-小鼠表现出视网膜厚度显着减少(CRTRPE65 = 193±2μm),外核层变薄。 P28 的 Rho-/- 小鼠表现出主要在视网膜外层的退行性变化 (CRTRho = 193±2μm)。在视网膜变性发生之前和之后检查 rd1 动物可以监测疾病进展(CRTrd1 P11 = 246±4μm,CRTrd1 P28 = 143±4μm)。通过组织学评估的 CRT 和 SD-OCT 的相关性很高 (r2 = 0.897)。我们使用市售的 SD-OCT 设备展示了野生型小鼠和体内视网膜变性小鼠模型的视网膜结构的横截面可视化。该方法将通过允许纵向研究设计来帮助减少每次研究所需的动物数量,并促进疾病动态的表征和实验干预后假定治疗效果的评估。
Spectral domain optical coherence tomography (SD-OCT) allows cross-sectional visualization of retinal structures in vivo. Here, we report the efficacy of a commercially available SD-OCT device to study mouse models of retinal degeneration. C57BL/6 and BALB/c wild type mice and three different mouse models of hereditary retinal degeneration (Rho-/-, rd1, RPE65-/-) were investigated using confocal scanning laser ophthalmoscopy (cSLO) for en face visualization and SD-OCT for cross-sectional imaging of retinal structures. Histology was performed to correlate structural findings in SD-OCT with light microscopic data. In C57BL/6 and BALB/c mice, cSLO and SD-OCT imaging provided structural details of frequently used control animals (central retinal thickness, CRTC57BL/6 = 237±2μm and CRTBALB/c = 211±10μm). RPE65-/- mice at 11 months of age showed a significant reduction of retinal thickness (CRTRPE65 = 193±2μm) with thinning of the outer nuclear layer. Rho-/- mice at P28 demonstrated degenerative changes mainly in the outer retinal layers (CRTRho = 193±2μm). Examining rd1 animals before and after the onset of retinal degeneration allowed to monitor disease progression (CRTrd1 P11 = 246±4μm, CRTrd1 P28 = 143±4μm). Correlation of CRT assessed by histology and SD-OCT was high (r2 = 0.897). We demonstrated cross sectional visualization of retinal structures in wild type mice and mouse models for retinal degeneration in vivo using a commercially available SD-OCT device. This method will help to reduce numbers of animals needed per study by allowing longitudinal study designs and facilitate characterization of disease dynamics and evaluation of putative therapeutic effects following experimental interventions.
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