Barnes K C, Fernández-Caldas E, Trudeau W L, Milne D E, Brenner R J
Department of Anthropology, University of Florida, Gainesville 32611, USA.
J Med Entomol. 1997 Mar;34(2):212-8. doi: 10.1093/jmedent/34.2.212.
House features contribute to house dust mite abundance and, therefore, exposure to mite allergens. Our study assessed the hypothesis that modernization of the domestic environment in a tropical setting may lead to a level of allergen from the house dust mites Dermatophagoides pteronyssinus (Trouessart) and D. farinae Hughes that previously has been defined clinically as at risk for people who suffer from allergic disease. Allergen (Der p 1 and Der f 1) levels were measured at 4 sites (mattress, bedroom floor, living room floor, and furniture) in 17 houses in Barbados during dry and rainy seasons. Der p 1(17 of 17 homes) at all 4 sites did not vary significantly from the dry to rainy season. Allergen levels varied according to site, and were highest in living room furniture in both seasons (geometric mean 40.37 and 64.17 micrograms/g, respectively). Concentration of Der p 1 allergens were higher in concrete than in wood or mixed concrete and wood houses. Der f 1(9 of 17 homes) levels were lower than Der p 1 by 1/1,000 (both seasons). Results indicate that season is less important in regard to levels of Der p 1 than house construction and confirm other studies that implicate D. pteronyssinus as a more abundant source of allergen than D. farinae in this tropical setting.
房屋特征会导致屋尘螨数量增加，进而使人接触到螨过敏原。我们的研究评估了这样一个假设：热带地区家庭环境的现代化可能会导致屋尘螨（粉尘螨和户尘螨）产生一定水平的过敏原，而这一水平在临床上先前已被定义为会使过敏性疾病患者面临风险。在巴巴多斯的旱季和雨季，对17所房屋的4个地点（床垫、卧室地板、客厅地板和家具）的过敏原（Der p 1和Der f 1）水平进行了测量。在所有4个地点，Der p 1（17所房屋全部如此）在旱季和雨季之间没有显著差异。过敏原水平因地点而异，在两个季节中客厅家具上的过敏原水平都是最高的（几何平均数分别为40.37和64.17微克/克）。Der p 1过敏原在混凝土房屋中的浓度高于木质房屋或混凝土与木质混合房屋。Der f 1（17所房屋中的9所）的水平比Der p 1低千分之一（两个季节均如此）。结果表明，对于Der p 1水平而言，季节的影响不如房屋结构重要，并且证实了其他研究的结果，即在这个热带环境中，粉尘螨作为过敏原的来源比户尘螨更为丰富。
