Publication: The accumulation of dust mite allergens on mattresses made of different kinds of materials
Issued Date
2010-06-01
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ISSN
0125877X
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2-s2.0-78649509024
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Mahidol University
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SCOPUS
Bibliographic Citation
Asian Pacific Journal of Allergy and Immunology. Vol.28, No.2-3 (2010), 155-161
Suggested Citation
Nualanong Visitsunthorn, Varakorn Chirdjirapong, Visanu Pootong, Orathai Jirapongsananuruk, Punchama Pacharn, Sirirat Weeravejsukit, Vanna Mahakittikun, Pakit Vichyanond The accumulation of dust mite allergens on mattresses made of different kinds of materials. Asian Pacific Journal of Allergy and Immunology. Vol.28, No.2-3 (2010), 155-161. Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/29224
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Title
The accumulation of dust mite allergens on mattresses made of different kinds of materials
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Abstract
Background: Different mattress materials may affect the accumulation of allergens. Objective: To compare the amount of group 1 dust mite allergens (Der p1 + Der f1) on mattresses made of different kinds of materials before and after use. Methods: Sixty new mattresses made of kapok, synthetic fiber, coconut fiber and sponge-like polyurethane, were placed in the house officers' dormitory at Siriraj hospital, Thailand. The dust samples were collected before (0), 1, 2, 3, 6, 9 and 12 months after the mattresses were used. Group 1 dust mite allergens were analyzed using two-site monoclonal antibody ELISA. Results: Der f1 made up 86.7 % of group 1 allergens found in the matress dust. After the 2nd month, only the mean level in sponge-like polyurethane mattress was under 2 μg/g dust (sensitized level). At the 6th month, the mean levels were 13.1 in coconut, 21.7 in kapok and 17.3 μg/g dust in synthetic fiber, all of which were more than 10 μg/g dust (symptomatic level). At the 9th month, the level in sponge-like polyurethane mattress was increased to 11.2 μg/g. At 12th month the level in coconut fiber, sponge-like polyurethane synthetic fiber and kapok mattresses were 20.2, 22.4, 28.9 and 32.2 μg/g dust respectively. Conclusions: The accumulation rate in kapok and synthetic mattresses was significantly higher than coconut and sponge-like polyurethane mattresses. The mean level of group 1 mite allergens exceeded 10 μg/g dust after the 6th month of use in coconut fiber, kapok and synthetic fiber and at the 9th month in sponge-like polyurethane mattress.