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Related Experiment Videos

Airborne contact dermatitis from Frullania

S Quirce1, A I Tabar, M D Muro

  • 1Section of Allergology, Hospital Virgen del Camino, Pamplona, Spain.

Contact Dermatitis
|February 1, 1994
PubMed
Summary

Airborne contact dermatitis can be caused by Frullania species found in nature. Patch testing with sesquiterpene lactone mix effectively screens for Frullania sensitivity, though responses vary.

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Area of Science:

  • Dermatology
  • Allergology
  • Environmental Dermatology

Background:

  • Dermatitis in sun-exposed areas after outdoor activities suggests plant-induced reactions.
  • Frullania species are known potential allergens encountered in natural environments.

Purpose of the Study:

  • To investigate airborne contact dermatitis caused by Frullania species.
  • To evaluate the efficacy of patch testing with Frullania extracts and sesquiterpene lactones.

Main Methods:

  • Evaluated 7 subjects with a history of dermatitis after outdoor exposure.
  • Performed patch testing using Frullania dilatata, Frullania tamarisci, Compositae species, alantolactone, and a sesquiterpene lactone mix.

Main Results:

  • All subjects reacted positively to Frullania dilatata.
  • 3 subjects reacted to Frullania tamarisci, and 2 to florists' chrysanthemum.
  • Most subjects (6/7) showed positive responses to the sesquiterpene lactone mix, indicating its utility as a screening agent.

Conclusions:

  • Airborne contact dermatitis from Frullania species is a likely cause of eczema in affected individuals.
  • Sesquiterpene lactone mix serves as a valuable screening tool for Frullania sensitivity, despite observed variations in individual responses.

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