Fernández-Caldas E, Fox R W, Bucholtz G A, Trudeau W L, Ledford D K, Lockey R F
University of South Florida, College of Medicine, Department of Internal Medicine, Tampa.
Allergy Proc. 1990 Nov-Dec;11(6):263-7. doi: 10.2500/108854190778879710.
This study evaluated the prevalence of positive house dust mite skin tests in a population of atopic individuals and identified the mite species present in mattress and house dust samples in homes of the Tampa Bay area. Four hundred consecutive individuals were evaluated for respiratory complaints and skin tested with standardized extracts of Dermatophagoides pteronyssinus (Dp) and Dermatophagoides farinae (Df). Two hundred forty individuals (60%) had a positive skin test to the mite extracts. Dust samples were collected in 40 homes of mite-allergic individuals and analyzed by light microscopy. Mite species were found in 53 of the 60 dust samples (20 mattresses and 40 carpets). Mite numbers ranged from 110-6200 mites/g of mattress dust and from 120-5500 mites/g of carpet dust. Eleven different mite species were identified and Blomia tropicalis (Bt), not previously identified in the United States, was found in 30% of the samples. Dp and Df wee the predominant species. These observations suggest that house dust mite allergy is common in the Tampa Bay area and that the house dust mite fauna comprises several mite species besides Dp and Df. Prospective studies in progress are designed to confirm the role of different mite species in house dust mite allergy.
本研究评估了特应性个体群体中屋尘螨皮肤试验阳性的患病率，并确定了坦帕湾地区家庭床垫和屋尘样本中存在的螨种。对连续400名有呼吸道症状的个体进行评估，并采用标准化的粉尘螨提取物和屋尘螨提取物进行皮肤试验。240名个体（60%）对螨提取物皮肤试验呈阳性。在40户螨过敏个体的家中采集灰尘样本，并通过光学显微镜进行分析。在60份灰尘样本中的53份（20个床垫和40块地毯）中发现了螨种。螨数量范围为每克床垫灰尘110 - 6200只螨，每克地毯灰尘120 - 5500只螨。鉴定出11种不同的螨种，其中热带无爪螨（Bt）在美国此前未被发现，在30%的样本中被发现。粉尘螨和屋尘螨是主要的螨种。这些观察结果表明，屋尘螨过敏在坦帕湾地区很常见，并且屋尘螨动物群除了粉尘螨和屋尘螨之外还包括几种螨种。正在进行的前瞻性研究旨在证实不同螨种在屋尘螨过敏中的作用。
