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Contact dermatitis to Alstroemeria.

B Santucci, M Picardo, C Iavarone

    Contact Dermatitis
    |April 1, 1985
    PubMed
    Summary
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    Contact dermatitis in floriculture workers can be caused by Alstroemeria. Researchers identified 6-tuliposide A as the primary allergen responsible for allergic reactions in exposed individuals.

    Area of Science:

    • Dermatology
    • Allergology
    • Plant Chemistry

    Background:

    • Occupational contact dermatitis is a significant concern in floriculture.
    • Alstroemeria (Peruvian lily) is a popular ornamental plant, but its potential to cause allergic reactions is not well-documented.

    Purpose of the Study:

    • To investigate the incidence of contact dermatitis among workers handling Alstroemeria.
    • To identify the specific allergen(s) responsible for allergic reactions in Alstroemeria.

    Main Methods:

    • A study involving 50 workers at a floriculture center was conducted.
    • Skin patch testing was performed using aqueous and ethanolic extracts of Alstroemeria.
    • Column chromatography and spectroscopic methods (proton magnetic resonance, carbon-13 magnetic resonance) were used to isolate and identify the allergen.

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    Main Results:

    • Three out of 50 workers exhibited positive reactions to Alstroemeria extracts.
    • The identified allergen was 6-tuliposide A, isolated from cut flowers, stems, and leaves.
    • Patch testing with 6-tuliposide A at 0.01% and alpha-methylene-gamma-butyrolactone at 10(-5) (v/v) elicited positive reactions in the affected subjects.

    Conclusions:

    • 6-tuliposide A is identified as the causative agent of contact dermatitis from Alstroemeria exposure.
    • Floriculture workers handling Alstroemeria are at risk of developing allergic contact dermatitis due to 6-tuliposide A.