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Updated: Jun 11, 2025

An Intravital Microscopy-Based Approach to Assess Intestinal Permeability and Epithelial Cell Shedding Performance
Published on: December 3, 2020
Increased Intestinal Inflammation and Permeability in Glaucoma
Zuo Wang1,2, Siqi Guo3, Chong He2,4
1Department of Clinical Laboratory, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, People's Republic of China.
Glaucoma patients show increased gut inflammation and permeability, indicated by higher fecal lactoferrin and alpha-1 antitrypsin levels. These markers correlate with disease severity, suggesting a gut-retina axis link in glaucoma pathogenesis.
Area of Science:
- Ophthalmology
- Gastroenterology
- Microbiome Research
Background:
- Gut dysbiosis is linked to glaucoma development, often involving chronic intestinal inflammation and increased permeability.
- The specific relationship between intestinal inflammation/permeability markers and glaucoma requires further investigation.
Purpose of the Study:
- To investigate the association between fecal inflammation and permeability markers and glaucoma.
- To explore the correlation of these markers with glaucoma severity.
Main Methods:
- Quantified fecal lactoferrin (Lf) and alpha-1 antitrypsin (AAT) using ELISA in 114 glaucoma patients and 75 controls.
- Utilized logistic regression to assess biomarker association with glaucoma and severity (based on mean deviation).
Main Results:
- Glaucoma patients exhibited significantly elevated fecal Lf and AAT levels compared to controls.
- Fecal Lf and AAT positively correlated with glaucoma, with adjusted odds ratios indicating increased risk.
- Fecal Lf levels differed between moderate and severe glaucoma, while fecal AAT correlated with greater glaucomatous injury and larger vertical cup-to-disc ratio.
Conclusions:
- Findings suggest increased intestinal inflammation and permeability in glaucoma patients.
- This supports the role of the gut-retina axis in glaucoma pathogenesis.
- These biomarkers may offer new therapeutic targets for glaucoma.
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