House dust mites and their allergens at selected locations in the homes of house dust mite-allergic patients

被引:25
作者
Sidenius, KE
Hallas, TE
Brygge, T
Poulsen, LK
Mosbech, H
机构
[1] Natl Univ Hosp, Dept 7551, Allergy Unit, DK-2100 Copenhagen O, Denmark
[2] Gentofte Univ Hosp, Dept Y, Allergy Clin, Hellerup, Denmark
[3] Copenhagen Univ Hosp, Clin B, Allergy Unit, Frederiksberg, Denmark
关键词
allergens; Denmark; Dermatophagoides; dust; floor; house dust mites; housing; mattress;
D O I
10.1046/j.1365-2222.2002.01472.x
中图分类号
R392 [医学免疫学];
学科分类号
100102 ;
摘要
Background Knowledge of the occurrence of house dust mites (HDM) and their allergens in domestic locations is important when planning intervention. Objective The aim of this study was to describe the distribution of HDMs and their allergens before intervention in multiple locations in the homes of newly diagnosed HDM-allergic patients with a known high Der 1 concentration in their mattress dust. Methods Dust was collected from ten locations in the homes of eight HDM-allergic patients. Dust was analysed for allergen content with ELISAs for Der f 1, Der p 1 and Der m 1; and HDM were counted. Total allergen concentrations (mug Der 1/g dust) were expressed as the sum of Der f 1, Der p 1 and Der m 1. Results On mattresses the median concentration was 86 mug Der 1/g dust (range 30-288) and 188 mites/g dust (range 12-1910). Der 1 exceeded 10 mug/g dust in mattresses (8/8), duvets/pillows (3/8), a bedroom carpet (1/1), a living room carpet (1/6), upholstered furniture (2/8) and a curtain (1/5). Uncarpeted floors, upholstered furniture, bookshelves and walls had significantly lower Der 1 concentration than the mattresses. The relative contribution of Der p 1, Der f 1 or Der m 1 to Der 1 was related to homes, rather than to the location. Der m 1 only occurred in minute amounts. Conclusion For HDM intervention, our results indicate that priority should be given to the removal of allergens from mattresses, and in addition from carpets, duvets/pillows and upholstered furniture. Dust from walls, uncarpeted floors, bookshelves and curtains appear to contribute insignificantly to the domestic HDM allergen load.
引用
收藏
页码:1299 / 1304
页数:6
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