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Sensitization in a grain handler to the storage mite Lepidoglyphus destructor (Schrank)
Annals of Allergy
|January 1, 1983
Summary
Allergies to storage mites like Lepidoglyphus destructor are common in Canadian grain workers. Sensitization to these mites and fungi was higher in asthmatics with grain exposure history.
Area of Science:
- Occupational Health
- Allergology
- Environmental Health
Background:
- Storage mites are common allergens in occupational settings.
- Lepidoglyphus destructor is a prevalent storage mite in Canada.
- Asthma patients may exhibit sensitization to various mites and fungi.
Purpose of the Study:
- To investigate the prevalence of Lepidoglyphus destructor sensitization in Canadian asthmatics.
- To explore co-sensitization patterns with other mites and fungi.
- To determine the association between occupational grain exposure and mite/fungal sensitization in asthmatics.
Main Methods:
- Immediate skin testing was performed on a grain worker.
- Inhalation challenge was conducted on a grain worker.
- Skin testing was administered to 100 asthmatics to assess sensitization to storage mites and fungi.
Main Results:
- Allergy to Lepidoglyphus destructor was confirmed in a grain worker via skin testing and inhalation challenge.
- 12% of 100 asthmatics showed sensitization to Lepidoglyphus destructor.
- 4% of asthmatics were sensitized to Acarus siro, with co-sensitization to L. destructor and Dermatophagoides farinae.
Conclusions:
- Lepidoglyphus destructor is a significant allergen for Canadian grain workers and asthmatics.
- Occupational exposure to grain is linked to a higher prevalence of sensitization to storage mites and fungi in asthmatics.
- Co-sensitization to common house dust mites and storage mites is observed in some asthmatic individuals.