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Increased levels of Helicobacter pylori IgG antibodies in aqueous humor of patients with primary open-angle and exfoliation glaucoma

  • Jannis KountourasEmail author
  • Nikolaos Mylopoulos
  • Anastasios G. P. Konstas
  • Christos Zavos
  • Dimitrios Chatzopoulos
  • Anna Boukla
Clinical Investigation

Abstract

Purpose

A prospective, nonrandomized, comparative study was carried out to investigate the levels of anti-H. pylori-specific IgG antibodies in the aqueous humor and serum of patients with primary open-angle glaucoma (POAG) and patients with exfoliation glaucoma (XFG), and to compare them with those in age-matched cataract patients.

Methods

Aqueous humor was aspirated at the beginning of glaucoma surgery from 26 eyes of 26 patients with POAG, 27 eyes of 27 patients with XFG, and at the beginning of phakoemulsification cataract surgery from 31 eyes of 31 age-matched normotensive cataract patients. Serum samples were obtained the day before surgery from all patients. Anti-H. pylori IgG concentration in the aqueous humor and serum was measured by means of an enzyme-linked immunosorbent assay.

Results

The mean concentration (± SE) of anti-H. pylori-specific IgG was significantly greater in the aqueous humor samples from patients with POAG (14.27±3.86 U/ml) and XFG (14.25±3.39 U/ml) than in those from age-matched control cataract patients (4.67±1.07 U/ml); (P=0.006 and P=0.003, respectively). No difference was observed in the levels of H. pylori-specific IgG antibodies between POAG and XFG aqueous humor samples (P=0.5). Similarly, the serum concentration of anti-H. pylori antibodies was significantly greater in patients with POAG (69.96±9.69 U/ml; P=0.013) and XFG (81.37±10.62 U/ml; P=0.002) than in the cataract controls (44.16±6.48 U/ml). The mean vertical cupping correlated significantly with the titer of anti-H. pylori-specific IgG in the aqueous humor in the POAG patients.

Conclusion

H. pylori-specific IgG antibody levels are significantly increased in the aqueous humor and serum of patients with POAG and XFG. Moreover, the titer of anti-H. pylori antibody in the aqueous humor might reflect the severity of glaucomatous damage in POAG patients. These findings support a role for H. pylori infection in the pathobiology of these two common glaucomas.

Keywords

Glaucoma Pylorus Infection Aqueous Humor Glaucoma Patient Glaucomatous Damage 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 2003

Authors and Affiliations

  • Jannis Kountouras
    • 1
    • 2
    Email author
  • Nikolaos Mylopoulos
    • 3
  • Anastasios G. P. Konstas
    • 4
  • Christos Zavos
    • 2
  • Dimitrios Chatzopoulos
    • 2
  • Anna Boukla
    • 2
  1. 1.ThessalonikiGreece
  2. 2.Department of Gastroenterology, Second Medical Clinic, Ippokration HospitalAristotle University of ThessalonikiThessalonikiGreece
  3. 3.Department of OphthalmologyIppokration HospitalThessalonikiGreece
  4. 4.Department of Ophthalmology, AHEPA HospitalAristotle University of ThessalonikiThessalonikiGreece

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