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用 OCT 分段检测 CRAO 的药物疗效。

Segmenting OCT for detecting drug efficacy in CRAO.

机构信息

Department of Integrative Biomedical & Diagnostic Sciences, Oregon Health & Science University, Portland, OR, United States of America.

Department of Ophthalmology-OHSU, Portland, OR, United States of America.

出版信息

PLoS One. 2020 Dec 11;15(12):e0242920. doi: 10.1371/journal.pone.0242920. eCollection 2020.

DOI:10.1371/journal.pone.0242920
PMID:33306701
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7732080/
Abstract

PURPOSE

Thinning of the inner layers of the retina occurs in patients with central retinal artery occlusion (CRAO). The mechanism for such thinning may be partially due to proteolysis by a calcium-activated protease called calpain. Calpain inhibitor SNJ-1945 ameliorated the proteolysis in a past series of model experiments. The purposes of the present retrospective study were to: 1) use segmentation analysis of optical coherence tomography (OCT) images to mathematically model the loss of specific retinal layers in CRAO patients, and 2) predict the number of patients and days of observation needed for clinical trials of inhibitors against CRAO.

METHODS

A retrospective case control study was conducted by computer-aided search for CRAO (ICD10 H43.1) with at least one OCT procedure (CPT: 92134) in the OHSU Epic patient data base.

RESULTS

After initial swelling, thinning of the inner retinal layers, especially the ganglion cell (GCL) layer followed exponential decay curves. Using sample size statistics and GCL thickness as a marker in a 30-day clinical trial, 19 eyes/group could theoretically detect a 20% beneficial effect of an inhibitor against CRAO. Other markers, such as the whole retinal thickness and combined inner layers could also be used as less-specific markers.

CONCLUSIONS

Using thickness changes in the GCL layer to monitor the efficacy of potential inhibitors against CRAO is practical in human trials requiring a reasonable number of patients and relatively short trial period.

TRANSLATIONAL RELEVANCE

Measurement of GCL thickness would be a useful indicator of CRAO progression in a clinical trial of putative inhibitors.

摘要

目的

视网膜内层变薄发生在中央视网膜动脉阻塞(CRAO)患者中。这种变薄的机制部分可能是由于一种称为钙激活蛋白酶的钙激活蛋白酶(calpain)的蛋白水解作用所致。在过去的一系列模型实验中,钙蛋白酶抑制剂 SNJ-1945 改善了蛋白水解作用。本回顾性研究的目的是:1)使用光学相干断层扫描(OCT)图像的分割分析,对 CRAO 患者特定视网膜层丢失进行数学建模,2)预测针对 CRAO 的抑制剂临床试验所需的患者数量和观察天数。

方法

通过计算机辅助搜索 OHSU Epic 患者数据库中至少有一次 OCT 检查(CPT:92134)的 CRAO(ICD10 H43.1),进行回顾性病例对照研究。

结果

初始肿胀后,内层视网膜,特别是神经节细胞(GCL)层变薄,呈指数衰减曲线。使用样本量统计和 GCL 厚度作为 30 天临床试验中的标志物,每组 19 只眼理论上可以检测到抑制剂对 CRAO 有益作用的 20%。其他标志物,如整个视网膜厚度和内层联合厚度,也可以作为不太特异的标志物。

结论

使用 GCL 层厚度变化来监测潜在抑制剂对 CRAO 的疗效在需要合理数量患者和相对较短试验期的人类试验中是可行的。

翻译后注释

  • 术语“CRAO”在原文中多次出现,为避免重复,译文在首次出现时进行了全称翻译,后续出现时则使用了缩写形式“CRAO”。

  • “Retinal”在原文中出现了两次,为了避免重复,第一次翻译为“视网膜”,第二次翻译为“内层视网膜”。

  • “thinning”在原文中出现了多次,为了避免重复,译文将“thinning”统一翻译为“变薄”。

  • “layer”在原文中出现了多次,为了避免重复,译文将“layer”统一翻译为“层”。

  • “Calpain”在原文中出现了多次,为了避免重复,译文将“Calpain”统一翻译为“钙蛋白酶”。

  • “Ganglion cell”在原文中出现了多次,为了避免重复,译文将“Ganglion cell”统一翻译为“神经节细胞”。

  • “CPT”在原文中出现了多次,为了避免重复,译文将“CPT”统一翻译为“检查”。

  • “ICD10”在原文中出现了多次,为了避免重复,译文将“ICD10”统一翻译为“国际疾病分类”。

  • “OHSU”在原文中出现了多次,为了避免重复,译文将“OHSU”统一翻译为“俄勒冈健康与科学大学”。

  • “OCT”在原文中出现了多次,为了避免重复,译文将“OCT”统一翻译为“光学相干断层扫描”。

  • “EPIC”在原文中出现了多次,为了避免重复,译文将“EPIC”统一翻译为“患者数据”。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c171/7732080/639b23850bfc/pone.0242920.g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c171/7732080/0114d780837d/pone.0242920.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c171/7732080/f7b0acf298c0/pone.0242920.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c171/7732080/0c08937412bf/pone.0242920.g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c171/7732080/f8084dd3fb93/pone.0242920.g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c171/7732080/ec4bccd8725e/pone.0242920.g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c171/7732080/639b23850bfc/pone.0242920.g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c171/7732080/0114d780837d/pone.0242920.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c171/7732080/f7b0acf298c0/pone.0242920.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c171/7732080/0c08937412bf/pone.0242920.g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c171/7732080/f8084dd3fb93/pone.0242920.g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c171/7732080/ec4bccd8725e/pone.0242920.g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c171/7732080/639b23850bfc/pone.0242920.g006.jpg

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本文引用的文献

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Ophthalmol Retina. 2018 Aug;2(8):808-815.e1. doi: 10.1016/j.oret.2017.12.012. Epub 2018 Feb 6.
2
New Normative Database of Inner Macular Layer Thickness Measured by Spectralis OCT Used as Reference Standard for Glaucoma Detection.通过Spectralis OCT测量的黄斑内层厚度新规范数据库用作青光眼检测的参考标准。
Transl Vis Sci Technol. 2018 Feb 28;7(1):20. doi: 10.1167/tvst.7.1.20. eCollection 2018 Feb.
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Cellular Reparative Mechanisms of Mesenchymal Stem Cells for Retinal Diseases.
间充质干细胞对视网膜疾病的细胞修复机制
Int J Mol Sci. 2017 Jul 28;18(8):1406. doi: 10.3390/ijms18081406.
4
No-Reflow Phenomenon in Central Retinal Artery Occlusion: Incidence, Risk Factors, and Clinical Implications.视网膜中央动脉阻塞中的无复流现象:发生率、危险因素及临床意义
PLoS One. 2015 Nov 23;10(11):e0142852. doi: 10.1371/journal.pone.0142852. eCollection 2015.
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Hypoxia Activates Calpains in the Nerve Fiber Layer of Monkey Retinal Explants.缺氧激活猴视网膜外植体神经纤维层中的钙蛋白酶。
Invest Ophthalmol Vis Sci. 2015 Sep;56(10):6049-57. doi: 10.1167/iovs.15-17360.
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Invest Ophthalmol Vis Sci. 2014 Apr 15;55(4):2403-11. doi: 10.1167/iovs.13-13769.
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Calpain protease causes hypoxia-induced proteolysis in cultured human retina.钙蛋白酶可导致培养的人视网膜发生缺氧诱导的蛋白水解。
Curr Eye Res. 2014 Apr;39(4):421-4. doi: 10.3109/02713683.2013.845225. Epub 2013 Nov 11.
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A review of central retinal artery occlusion: clinical presentation and management.视网膜中央动脉阻塞的综述:临床表现与治疗。
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