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Related Experiment Videos

Dogs hypersensitive to house dust mite.

Y Ino, H Yamakawa, M Iwaki

    Arerugi = [Allergy]
    |July 1, 1989
    PubMed
    Summary

    This study found that dogs with positive skin reactions to house dust mite (Dermatophagoides farinae) extract also showed increased respiratory resistance upon inhalation, suggesting spontaneous sensitization.

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    Area of Science:

    • Veterinary Medicine
    • Immunology
    • Respiratory Physiology

    Background:

    • House dust mites are common allergens.
    • Canine models are used to study allergic respiratory diseases.

    Purpose of the Study:

    • To investigate the respiratory effects of house dust mite extract in dogs.
    • To determine if positive skin reactions correlate with respiratory changes.

    Main Methods:

    • Intradermal skin testing with Dermatophagoides farinae extract in five dogs.
    • Inhalation challenge with mite extract in sensitized dogs.
    • Measurement of respiratory resistance and analysis of spirograms.

    Main Results:

    • Three out of five dogs showed positive skin reactions to mite extract.
    • Inhalation of mite extract significantly increased respiratory resistance and altered spirograms in these dogs.

    Conclusions:

    • Positive skin reactions indicate spontaneous sensitization to Dermatophagoides farinae in dogs.
    • These sensitized dogs exhibit measurable respiratory changes upon allergen inhalation.

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