House dust mite population in the bedrooms of people with dust mite allergy in the city of Ordu, Turkey

Year 2018, Volume: 42 Issue: 3, 205 - 213, 31.05.2018

Rana Akyazı , Mete Soysal , Duygu Akyol

https://doi.org/10.16970/entoted.427959

Abstract

House dust mites are a major source of allergens that are responsible for allergic symptoms such as asthma and atopic diseases. The warm and humid climate of Ordu, which is situated on the Black Sea coast of Turkey is highly suitable for the growth of house dust mites. Seasonal changes in the populations of the house dust mites were studied in five houses of dust-mite sensitive people with asthma between 2013 and 2015. Dust samples were obtained once a month to assess the monthly distribution of dust mites. House dust mites were isolated from samples by a wet-sieving method. Permanent slides were prepared for morphologically based species determination. The most abundant species were Dermatophagoides pteronyssinus (Trouessart, 1897) and Dermatophagoides farinae (Hughes, 1961) (Astigmata: Pyroglyphidae), 65.4 and 31.0% of the total count of mites, respectively. Dust mites can survive all year round and are widely distributed in different types of houses in the city of Ordu. The mite abundance reached its peak in all houses during August (26-28ºC and 64-78% RH). The discomfort for people who have a dust mite allergy may reach a peak specifically during this time and they need to take extra precautions to reduce exposure to dust mites as much as possible during this period.

Keywords

Allergy, Dermatophagoides, house dust mites, seasonal population fluctuation, Turkey

Ordu (Türkiye)'da toz akar alerjisi olan kişilerin yatak odalarında toz akarı popülasyonu

Abstract

Ev tozu akarları, astım ve atopik dermatit gibi birçok alerjik simptoma neden olabilen ana alerjen kaynaklarından biridir. Türkiye'nin Karadeniz kıyısında yer alan Ordu şehrinin ılık ve nemli iklimi, ev tozu akarları için oldukça uygundur. Bu nedenle Ordu ilinde 2013-2015 yılları arasında, toz akarına duyarlı astımlı hastaların yaşadığı beş evde ev tozu akarı popülasyonundaki mevsimsel değişiklikler incelenmiştir. Toz akarı popülasyonundaki aylık değişimleri tespit etmek için, her evde ayda bir toz örneklemesi yapılmıştır. Akarlar ıslak- elek analiz yöntemiyle elde edilmiştir. Elde edilen türlerin morfolojik tür teşhisleri için preparatları yapılmıştır. Sonuçlar,en baskın türlerin Dermatophagoides pteronyssinus (Trouessart, 1897) ve Dermatophagoides farinae (Hughes, 1961) (Astigmata: Pyroglyphidae) olduğunu göstermiştir. Bu türler, toplam yoğunluğun sırası ile %65.4 ve %31.0 kadarını oluşturmuştur. Toz akarları, Ordu ilinde yıl boyunca tüm evlerde yaygın olarak bulunmuştur. Evlerdeki toz akar populasyonunun ağustos ayında (26-28ºC ve %64-78 RH) en yüksek seviyelere ulaştığı da belirlenmiştir. Toz akarı alerjisi olanların özellikle bu süre zarfında şikayetleri artabilir ve ekstra önlemlere ihtiyaç duyabilirler.

Keywords

Alerji, Dermatophagoides, ev tozu akarları, mevsimlik popülasyon değişimi, Türkiye

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