Document Detail

Cellular characteristics of non-allergic eosinophilic conjunctivitis.
MedLine Citation:
PMID:  19930216     Owner:  NLM     Status:  MEDLINE    
PURPOSE: This study examines the histology of conjunctival biopsy samples from patients with persistent allergic eosinophilic conjunctivitis (AEC) or non-allergic eosinophilic conjunctivitis (NAEC). METHODS: Fourteen patients with conjunctivitis and eosinophilia in cytology samples were included in the study. Seven had positive skin-prick tests (the AEC group) and seven had negative skin-prick tests (the NAEC group). Eight asymptomatic subjects with negative skin-prick tests served as a control group. In conjunctival biopsies eosinophils were identified with monoclonal antibodies. Mast cells were identified by specific immunostaining and tryptase-positive granules were counted around them. The percentage of degranulated mast cells was used as a measure of cell activation. Eosinophil and goblet cell numbers were counted, epithelial thickness was measured, and the symptoms were characterized and graded. RESULTS: The numbers of eosinophils in biopsies were higher in patients with AEC than in healthy controls (p = 0.010). The proportion of activated mast cells tended to be higher in AEC patients (65%) than in NAEC patients (48%) or control subjects (40%). Patients with AEC had more goblet cells than control subjects (p = 0.049) and their epithelial layer was thicker (p = 0.054). Patients with AEC had more severe symptoms than control subjects (p = 0.0005), whereas the symptoms of NAEC patients did not differ statistically from those of controls (p = 0.065). CONCLUSIONS: Patients with NAEC were characterized by mild eosinophilic inflammation and only minor structural conjunctival changes. The condition seems to run a relatively mild but persistent clinical course.
Osmo Kari; Tari Haahtela; Petri Laine; Juha P Turunen; Marjatta Kari; Seppo Sarna; Tarja Laitinen; Petri T Kovanen
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-11-23
Journal Detail:
Title:  Acta ophthalmologica     Volume:  88     ISSN:  1755-3768     ISO Abbreviation:  Acta Ophthalmol     Publication Date:  2010 Mar 
Date Detail:
Created Date:  2010-04-28     Completed Date:  2010-07-16     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101468102     Medline TA:  Acta Ophthalmol     Country:  England    
Other Details:
Languages:  eng     Pagination:  245-50     Citation Subset:  IM    
Optokari Ltd, Espoo, Finland.
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MeSH Terms
Aged, 80 and over
Cell Count
Conjunctivitis / pathology*
Eosinophilia / pathology*
Eosinophils / pathology*
Goblet Cells / pathology
Mast Cells / pathology
Middle Aged
Skin Tests
Young Adult

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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