1. Storage mite concentrations are underestimated compared to house dust mite concentrations
- Author
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Gabriel Reboux, Sandrine Roussel, Steffi Rocchi, Laurence Millon, Emeline Scherer, Benoît Valot, Laboratoire Chrono-environnement - CNRS - UBFC (UMR 6249) (LCE), Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Service de parasitologie et mycologie [CHRU de Besançon], and Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon)
- Subjects
0106 biological sciences ,Allergy ,Veterinary medicine ,MESH: Dermatophagoides pteronyssinus ,Dermatophagoides pteronyssinus ,01 natural sciences ,MESH: Dust ,Lepidoglyphus destructor ,030308 mycology & parasitology ,immune system diseases ,MESH: Animals ,MESH: Dermatophagoides farinae ,Mites ,0303 health sciences ,Dermatophagoides farinae ,Ecology ,integumentary system ,House dust mites ,MESH: Real-Time Polymerase Chain Reaction ,Dust ,MESH: Acaridae ,General Medicine ,3. Good health ,MESH: Housing ,qPCR ,Storage mites ,France ,MESH: Population Density ,MESH: Hypersensitivity ,MESH: Mites ,Biology ,Real-Time Polymerase Chain Reaction ,complex mixtures ,03 medical and health sciences ,parasitic diseases ,Hypersensitivity ,medicine ,Mite ,Animals ,Humans ,In patient ,Acaridae ,Population Density ,House dust mite ,[SDV.EE.SANT]Life Sciences [q-bio]/Ecology, environment/Health ,MESH: Humans ,MESH: Animal Distribution ,Electrostatic dust collector ,Dwellings ,medicine.disease ,Acarus ,biology.organism_classification ,respiratory tract diseases ,MESH: France ,010602 entomology ,Animal ecology ,Insect Science ,Housing ,Animal Distribution - Abstract
International audience; Dwellings are increasingly well insulated to save energy and this leads to higher humidity and temperature, which improves conditions for mites. Dermatophagoides antigens are the main allergens involved and tested in atopic asthma. We developed three new species-specific quantitative PCR (qPCR) methods for house dust mites (Dermatophagoides pteronyssinus and D. farinae) and storages mites (Acarus siro, Glycyphagus domesticus, Lepidoglyphus destructor). We sampled dust with electrostatic dust collectors, in the bedrooms, under beds and in the kitchens of patients with allergies (n = 24) and healthy controls (n = 18). Mite quantification was carried out with the three new qPCRs and the qPCR previously described for the Dermatophagoides genus. The qPCRs were highly specific and efficient for house dust mite species and the storage mites. Storage mite concentrations were higher than house dust mite concentrations and were higher in dwellings of patients with allergies. Consequently, allergists should test more often patients against the storage mite antigens by prick tests or IgE serology. Dampness is a major factor in storage mite development and the presence of effective mechanical ventilation can reduce storage mite concentrations four-fold. In addition, to limit exposure to dust mites, treatments should be used throughout dwellings and not only in patients' bedrooms.
- Published
- 2019