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Ocular findings in systemic cutaneous basophil hypersensitivity

M H Friedlaender, R Cyr

    Investigative Ophthalmology & Visual Science
    |September 1, 1979
    PubMed
    Summary

    Guinea pigs developed a delayed skin rash and internal organ inflammation after antigen exposure. Eosinophils were identified as key cells in this specific cutaneous hypersensitivity (SCBH) model, particularly in ocular tissues.

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    Area of Science:

    • Immunology
    • Ophthalmology
    • Dermatology

    Background:

    • Specific cutaneous basophil hypersensitivity (SCBH) models are crucial for understanding delayed-type hypersensitivity reactions.
    • The role of eosinophils in ocular inflammation within SCBH models requires further elucidation.

    Purpose of the Study:

    • To characterize the cellular and pathological features of SCBH in guinea pigs.
    • To investigate the involvement of eosinophils in the ocular manifestations of SCBH.

    Main Methods:

    • SCBH was induced in guinea pigs via immunization and subsequent antigen challenge.
    • Histopathological examination was performed on skin, ocular tissues, and other organs.

    Main Results:

    • Animals exhibited delayed-onset erythematous skin rash and dermal infiltration by basophils and eosinophils.
    • Eosinophilic infiltration was observed in the uveal tracts and other internal organs.
    • The eye was significantly affected, with eosinophils being a prominent cellular component.

    Conclusions:

    • SCBH in guinea pigs is characterized by a prominent eosinophilic response.
    • Eosinophils play a significant role in the ocular pathology associated with SCBH.
    • This model provides insights into eosinophil-mediated ocular hypersensitivity reactions.

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