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Related Concept Videos

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.
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Glaucoma: Overview01:25

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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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Angle Closure Glaucoma: Treatment01:28

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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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Biomarkers for primary open-angle glaucoma progression.

Mengya Zhao1, Ping Ma2, Qinghong Xie3

  • 1Department of Ophthalmology, University of California, San Francisco, San Francisco, CA, 94143, USA; Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200940, China.

Experimental Eye Research
|March 12, 2022
PubMed
Summary
This summary is machine-generated.

Researchers identified specific gene expression biomarkers in aqueous humor that indicate disease progression in primary open angle glaucoma (POAG) patients. These findings may enhance glaucoma monitoring and patient surveillance for progressive cases.

Keywords:
Aqueous humorBiomarkersPOAGRNA sequencing

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Area of Science:

  • Ophthalmology
  • Genetics
  • Biomarker Discovery

Background:

  • Primary open angle glaucoma (POAG) is a progressive optic neuropathy.
  • While many POAG patients remain stable, some subgroups experience disease progression despite treatment.
  • Identifying biomarkers for POAG progression is crucial for effective patient management.

Purpose of the Study:

  • To identify aqueous humor (AH) biomarkers associated with disease progression in POAG patients.
  • To differentiate gene expression patterns between stable and progressive POAG.
  • To discover potential indicators for enhanced glaucoma surveillance.

Main Methods:

  • Prospectively collected aqueous humor (AH) from stable and progressive POAG patients.
  • Metagenomic deep sequencing (MDS) was employed to analyze host transcriptome signatures.
  • Differential gene expression analysis was conducted to identify significant transcript changes.

Main Results:

  • A total of 21 transcripts were differentially expressed between stable and progressive POAG groups.
  • Twenty transcripts were upregulated, and one was downregulated in progressive POAG.
  • Five transcripts (FNDC3B, CLU, PCSK6, Celsr1, ARHGEF4) were linked to glaucomatous phenotypes.

Conclusions:

  • Aqueous humor contains potential biomarkers for POAG progression.
  • Identification of these biomarkers can improve glaucoma surveillance strategies.
  • This research offers new insights into the molecular mechanisms underlying POAG progression.