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Histamine levels in middle ear effusions.

G Berger, M Hawke, D W Proops

    Acta Oto-Laryngologica
    |November 1, 1984
    PubMed
    Summary
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    Histamine was found in most middle ear fluid samples, indicating its significant role in otitis media with effusion. This suggests mast cells release histamine, contributing to middle ear inflammation.

    Area of Science:

    • Otolaryngology
    • Immunology
    • Inflammation Research

    Background:

    • Otitis media with effusion (OME) is a common condition, particularly in children.
    • The exact pathogenesis of OME remains incompletely understood.
    • Inflammatory mediators are suspected to play a crucial role in OME development.

    Purpose of the Study:

    • To investigate the presence and potential role of histamine in middle ear effusions.
    • To explore the link between histamine and the inflammatory processes in OME.

    Main Methods:

    • A fluorometric assay technique was employed.
    • Histamine levels were quantified in 131 middle ear effusion samples.

    Main Results:

    • Significant amounts of histamine were detected in the majority of the analyzed samples.

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  • Histamine, a potent inflammatory mediator, was present in substantial concentrations.

    • Conclusions:

    • Histamine likely plays a significant role in the pathogenesis of otitis media with effusion.
    • It is hypothesized that mast cells in the tympanic mucoperiosteum degranulate and release histamine.
    • Complement system activation and subsequent anaphylatoxin formation are proposed triggers for mast cell degranulation.