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. 1985 Apr;12(4):215-9.
doi: 10.1111/j.1600-0536.1985.tb01110.x.

Contact dermatitis to Alstroemeria

B Santucci, M Picardo, C Iavarone, C Trogolo

Contact dermatitis to Alstroemeria

B Santucci et al. Contact Dermatitis. 1985 Apr.

Abstract

A study was carried out on 50 workers in a floriculture centre to evaluate the incidence of contact dermatitis to Alstroemeria. 3 subjects gave positive reactions to aqueous and ethanolic extracts of cut flowers, stems and leaves. By column chromatography, the allergen was isolated and its chemical structure identified as 6-tuliposide A by proton magnetic resonance and carbon-13 magnetic resonance. Only 6-tuliposide A was isolated from cut flowers, and this gave positive reactions when patch tested at 0.01%; a-methylene-gamma-butyrolactone at 10(-5) (v/v) was positive in the same 3 subjects. Other lactones (gamma-methylene-gamma-butyrolactone, alantolactone, isoalantolactone) were negative at all concentrations used.

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