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Related Experiment Videos

Allergic contact dermatitis in Trieste from 1987 to 1991.

C Scarpa1, F Kokelj, G Stinco

  • 1Institute of Dermatology, University of Trieste, Italie.

Allergie Et Immunologie
|December 1, 1992
PubMed
Summary

Patch testing revealed that while nickel and thiomersal allergies were most common in younger adults, fragrance mix allergies peaked in middle-aged individuals. Allergen sensitivity generally decreased with increasing age.

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Area of Science:

  • Dermatology
  • Allergology
  • Epidemiology

Background:

  • Contact dermatitis is a common skin condition often triggered by allergens.
  • Identifying prevalent allergens and their age-specific patterns is crucial for effective management.

Purpose of the Study:

  • To investigate the prevalence of specific allergen sensitivities in patients undergoing patch testing.
  • To analyze age-related variations in allergic reactions to common contact allergens.

Main Methods:

  • A retrospective analysis of 1,427 patients (389 male, 1,038 female) aged 6-70 years who underwent patch testing between 1987 and 1991.
  • Utilized standard patch test protocols from the Italian Group for Research into Contact Dermatitis and the Environment (GIRDCA).
  • Evaluated reactions to nickel sulfate, thiomersal, Fragrance Mix, cobalt sulfate, and potassium dichromate.

Main Results:

  • Nickel sulfate and thiomersal showed the highest positivity rates in patients aged 20-30 years.
  • Fragrance Mix sensitivity was most prevalent in individuals aged 40-60 years.
  • Overall positivity to single allergens tended to decrease with advancing age.

Conclusions:

  • Allergen prevalence in contact dermatitis varies significantly across different age groups.
  • Nickel, thiomersal, and fragrance mix represent key allergens requiring age-specific consideration in diagnosis and prevention.
  • Further research into age-related immune responses to contact allergens is warranted.

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