What question did this study set out to answer?

To determine the role of bacteria and polymorphonuclear leukocytes in the pathogenesis and maintenance of middle ear inflammation in chronic otitis media with effusion.

July 1, 1985Annals of Otology Rhinology & LaryngologyOpen Access

Bacterial and Polymorphonuclear Leukocyte Contribution to Middle Ear Inflammation in Chronic Otitis Media with Effusion

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Authors

GGG. Scott GiebinkUniversity of Minnesota Medical Center MHMargaret K. HostetterUniversity of Cincinnati Medical Center BCBarbara A. Carlson

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Implication

Observational analysis reveals elevated inflammatory markers in culture-positive middle ear effusion in children, indicating bacterial involvement maintains chronic inflammation.

Key Points

To determine the role of bacteria and polymorphonuclear leukocytes in the pathogenesis and maintenance of middle ear inflammation in chronic otitis media with effusion.
Analyzed 21 chronic middle ear effusion samples obtained from children.
Measured concentrations of lysozyme, lactoferrin, complement factors C3 and C5a, and polymorphonuclear leukocyte (PMNL) chemotaxin content across culture-positive and sterile effusions.
Concentrations of lysozyme, lactoferrin, and chemotaxin were significantly higher in culture-positive effusions than in sterile effusions.
Non-PMNL sources, presumed to be middle ear epithelial cells, accounted for 50% to 80% of the lysozyme variation in middle ear effusions.
Effusion chemotaxin content correlated poorly with complement factors C3 and C5a, indicating that chemotactic activity was driven by bacterial peptides rather than complement activation products.

Cite This Study

Giebink et al. (1985) studied this question.

synapsesocial.com/papers/6a7c7c3ba2188deaa4c2a0d3 https://doi.org/10.1177/000348948509400414

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Implication

Observational analysis reveals elevated inflammatory markers in culture-positive middle ear effusion in children, indicating bacterial involvement maintains chronic inflammation.

Bacterial and Polymorphonuclear Leukocyte Contribution to Middle Ear Inflammation in Chronic Otitis Media with Effusion

Discussion

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Implication

Key Points

Cite This Study

Bacterial and Polymorphonuclear Leukocyte Contribution to Middle Ear Inflammation in Chronic Otitis Media with Effusion

Discussion

Member takes

Implication

Key Points

Cite This Study

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