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Allergic contact dermatitis from gardenia fruit.
Contact Dermatitis
|February 1, 1990
Summary
A man developed severe dermatitis after applying a topical folk remedy containing gardenia fruit. Patch testing confirmed sensitivity to gardenia fruit components, highlighting a potential allergen in traditional treatments.
Area of Science:
- Dermatology
- Allergology
- Ethnobotany
Background:
- Topical folk remedies are widely used, but their allergenic potential is often uncharacterized.
- Gardenia fruit (Gardenia jasminoides Ellis) is a component in some traditional medicinal preparations.
Observation:
- A 41-year-old man presented with severe itchy dermatitis on his left leg.
- The dermatitis exacerbated after application of a topical folk remedy, Sokujikoh, containing powdered gardenia fruit (16%) to a knee bruise.
- Symptoms included edema, erythema, and vesicles in the treated area.
Findings:
- Patch testing revealed sensitivity to the seeds of gardenia fruit.
- A lesser sensitivity was observed for the pericarp (fruit wall) of the gardenia fruit.
- The identified allergens were extractable into ethanol and, to a lesser extent, water.
Implications:
- Gardenia fruit components can act as contact allergens, causing allergic contact dermatitis.
- This case highlights the need for caution and potential allergenicity assessment of folk remedies containing botanical ingredients.
- Further research into the specific allergenic compounds within gardenia fruit may be warranted.