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相关概念视频

Glaucoma: Overview01:25

Glaucoma: Overview

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Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
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Genetic Lingo01:11

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Overview
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Open Angle Glaucoma: Treatment01:27

Open Angle Glaucoma: Treatment

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In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
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Polygenic Traits01:18

Polygenic Traits

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When more than one gene is responsible for a given phenotype, the trait is considered polygenic. Human height is a polygenic trait. Studies have uncovered hundreds of loci that influence height, and there are believed to be many more. Due to the high number of genes involved, as well as environmental and nutritional factors, height varies significantly within a given population. The distribution of height forms a bell-shaped curve, with relatively few individuals in the population at the...
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Genome-wide Association Studies-GWAS01:11

Genome-wide Association Studies-GWAS

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Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
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Angle Closure Glaucoma: Treatment01:28

Angle Closure Glaucoma: Treatment

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Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
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相关实验视频

Updated: Sep 17, 2025

Laser Capture Microdissection of Highly Pure Trabecular Meshwork from Mouse Eyes for Gene Expression Analysis
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Laser Capture Microdissection of Highly Pure Trabecular Meshwork from Mouse Eyes for Gene Expression Analysis

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对正常张力玻璃眼的多基因风险预测

Maryam Marzban1, Santiago Diaz Torres1, Regina Yu1

  • 1QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia.

Investigative ophthalmology & visual science
|July 1, 2025
PubMed
概括
此摘要是机器生成的。

多基因风险评分 (PRSs) 显示出预测正常张力玻璃眼 (NTG) 风险的前景. 特定于NTG的PRS与欧洲祖先队伍的状况有显著的关联,这表明改善早期检测的潜力.

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Translaminar Autonomous System Model for the Modulation of Intraocular and Intracranial Pressure in Human Donor Posterior Segments
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Translaminar Autonomous System Model for the Modulation of Intraocular and Intracranial Pressure in Human Donor Posterior Segments

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Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential
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Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential

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相关实验视频

Last Updated: Sep 17, 2025

Laser Capture Microdissection of Highly Pure Trabecular Meshwork from Mouse Eyes for Gene Expression Analysis
13:47

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Translaminar Autonomous System Model for the Modulation of Intraocular and Intracranial Pressure in Human Donor Posterior Segments
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科学领域:

  • 眼科医生 眼科 眼科
  • 遗传学 遗传学 是一个
  • 统计基因组学 统计基因组学

背景情况:

  • 正常张力玻璃眼 (NTG) 的特点是视神经损伤与正常的眼内压力.
  • 多基因风险评分 (PRS) 是用于预测青光眼风险的新兴工具.
  • 没有任何全面的研究评估了PRS的预测能力,特别是NTG.

研究的目的:

  • 评估PRS对正常张力玻璃眼 (NTG) 的预测能力.
  • 使用全基因组关联研究 (GWAS) 数据构建和验证NTG特定的PRS.

主要方法:

  • 利用来自欧洲队列的GWAS总结数据来开发NTG的PRS.
  • 在PRS计算中采用SBayesRC和聚合和值 (C+T) 方法.
  • 在独立的欧洲祖先数据集中验证的PRS (我们所有人,GOG,QSkin).

主要成果:

  • 特定于NTG的PRS,特别是使用SBayesRC方法,在发现和验证队列中都显示出与NTG的显著关联.
  • 每个标准偏差的赔率比率表明,与较高的PRS值相关的NTG风险显著增加.
  • 结合功能注释的SBayesRC方法产生了强大的预测结果.

结论:

  • 特定于NTG的PRS显示了对眼风险预测的潜力,尽管目前NTG GWAS样本大小的局限性.
  • 未来的大规模NTG GWAS可能会导致临床上适用的PRS进行个性化风险评估.
  • 通过先进的PRS开发,可以改善NTG的早期检测和风险分层.