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<p>House dust mites have gained much attention recently because of their medical and veterinary significance. The house dust mite fauna and the allergies caused by these tiny mites remain relatively unexplored in Northern Kerala. The present study, conducted in two districts of Northern Kerala (viz., Malappuram and Kozhikode), aims to assess dust mite abundance in mattress dust from selected houses and to examine the dependence of various housing characteristics on mite populations. The housing variables considered included housing area, house roof type, number of residents, cleaning frequency, type of mattress, age of mattress and age of house. Out of 100 mattress dust samples collected, 90% of the samples were dust mite positive and <i>Dermatophagoides pteronyssinus</i> was found to be the most dominant (85.71%) mite species. A significant association was found between the number of mites collected and the number of residents. The estimation of guanine from dust samples gives an indirect measure of allergens present in the dust. Mattress dust from 50 houses was analysed for guanine content to assess the risk of mite allergy. All samples tested for guanine indicated low allergen levels (&lt; 0.6&#xa0;mg/g dust), representing a potential risk for allergy development. However, guanine concentration measured across different mattress types showed no significant correlation with the mite density (Pearson correlation; <i>p</i> value: 0.606 &gt; 0.05).</p>

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Dust mites from mattress dust: evaluating risk of mite allergy from guanine measurements

  • 期刊论文

  • 发表日期：

    2025年12月18日

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  • Indu Karuthedath,
  • Sobha Thalakkattil Raghavan

摘要

House dust mites have gained much attention recently because of their medical and veterinary significance. The house dust mite fauna and the allergies caused by these tiny mites remain relatively unexplored in Northern Kerala. The present study, conducted in two districts of Northern Kerala (viz., Malappuram and Kozhikode), aims to assess dust mite abundance in mattress dust from selected houses and to examine the dependence of various housing characteristics on mite populations. The housing variables considered included housing area, house roof type, number of residents, cleaning frequency, type of mattress, age of mattress and age of house. Out of 100 mattress dust samples collected, 90% of the samples were dust mite positive and Dermatophagoides pteronyssinus was found to be the most dominant (85.71%) mite species. A significant association was found between the number of mites collected and the number of residents. The estimation of guanine from dust samples gives an indirect measure of allergens present in the dust. Mattress dust from 50 houses was analysed for guanine content to assess the risk of mite allergy. All samples tested for guanine indicated low allergen levels (< 0.6 mg/g dust), representing a potential risk for allergy development. However, guanine concentration measured across different mattress types showed no significant correlation with the mite density (Pearson correlation; p value: 0.606 > 0.05).