scholarly journals Abundance of domestic mites in dwellings of children and adolescents with asthma in relation to environmental factors and allergy symptoms

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Krzysztof Solarz ◽  
Anna Obuchowicz ◽  
Marek Asman ◽  
Wacław Nowak ◽  
Joanna Witecka ◽  
...  

AbstractExposure to house dust allergens, mainly from domestic mites, is an important cause of allergic reactions in sensitized asthmatic patients. A total of 63 dust samples were collected from 16 flats in Bytom (south Poland); in each flat a person (age 4–17 years) suffering from bronchial asthma lived with his/her family. Mite density was calculated as the number of specimens per g of dust. The results were compared with household features and the data were statistically analyzed. In total 566 mite specimens were isolated, including 526 members of the family Pyroglyphidae (93%). The dominant species were Dermatophagoides pteronyssinus (60% of the total count) and Dermatophagoides farinae (32%). Pyroglyphids were found in all mite positive samples (68%) of which 35% also contained non-pyroglyphids, including glycyphagids, cheyletids and gamasids. The results suggest associations between the density of some mite taxa (per g of dust) and the following indoor environmental factors: presence of pets, number of inhabitants, coal-stoves as a type of heating, cleaning frequency, higher relative humidity, presence of flowers and PVC windows. The severity of asthma seems to be associated with the numbers of D. farinae, total domestic mites and live mites per g of dust.

Author(s):  
Mehdi Zare ◽  
Mehdi Hassani-Azad ◽  
Moussa Soleimani-Ahmadi ◽  
Raziea Majnoon

Abstract This study was conducted to determine the influence of environmental factors on the prevalence of house dust mites in student dormitories of Bandar Abbas city. In this study, 64 dust samples were collected from seven randomly selected dormitories located in various areas of the Bandar Abbas. The collected mites were isolated and mounted in Hoyer’s medium and identified using a morphological key. The associations between the environmental factors and the density of house dust mites were investigated. In total, 1,093 adult mites were collected and identified. They consisted of four species including Dermatophagoides pteronyssinus Trouessart (57.6%), Dermatophagoides farinae Hughes (24.3%) and Dermatophagoides evansi Fain (14.9%) (Acari: Pyroglyphidae), and Cheyletus malaccensis Oudemans (3.2%) (Acari: Cheyletidae). All of the dormitories were contaminated by more than one house dust mites species and the mean density of house dust mites in dormitories was 8.3 ± 0.2 mites/g of dust. There was a significant relationship between average house dust mites density and some of environmental factors such as relative humidity, temperature, floor covering type, and number of occupants (P < 0.05). Results of this study revealed that two major allergenic dust mites, D. pteronyssinus and D. farinae, were the most prevalent and collected from all of dormitories and some of indoor environmental factors found to influence mites’ population.


2020 ◽  
Vol 76 (06) ◽  
pp. 6410-2020
Author(s):  
BARTOSZ JANIA ◽  
MARTA DOPIERAŁA ◽  
EWA WÓJCIK ◽  
KATARZYNA RYMUZA ◽  
KATARZYNA ANDRASZEK

Allergies in dogs have become a relatively frequent topic of discussion in veterinary surgeries. Many dogs, both purebred and of mixed breeds, are diagnosed for allergies. Allergies have many causes, from genetic predisposition to the environmental conditions in which the animal lives. Allergies in dogs are troublesome because they can lead to serious health complications when diagnosed late or left untreated. The results of the study support the hypothesis that the percentage of allergies to individual allergens varied by region (Tab. 4). Differences were observed in the case of Dermatophagoides pteronyssinus and Dermatophagoides farinae house dust mites, Acarus siro, and Tyrophagus. The remaining allergens caused allergic reactions in similar percentages of dogs from northern, central and southern Poland.


2019 ◽  
Vol 19 (2) ◽  
Author(s):  
Denaneer Rahmadatu ◽  
Erma Sulistyaningsih ◽  
Dini Agustina

Abstrak. Asma merupakan gangguan inflamasi kronik saluran napas yang bersifat hiperesponsif yang ditandai adanya gejala episodik berulang berupa mengi, sesak napas, dada terasa berat, dan batuk, terutama pada malam hari atau dini hari. Sekitar 50-80% asma disebabkan oleh tungau debu rumah (TDR), khususnya Dermatophagoides pteronyssinus dan Dermatophagoides farinae. Penelitian ini bertujuan untuk mengetahui apakah terdapat hubungan antara kepadatan Dermatophagoides spp. pada debu rumah dengan frekuensi serangan asma pada penderita asma di RS Paru Jember. Penelitian ini merupakan penelitian analitik observasional dengan desain penelitian cross-sectional. Sampel penelitian ini yaitu 30 penderita asma di RS Paru Jember yang diambil menggunakan teknik simple random sampling sesuai dengan kriteria inklusi dan eksklusi. Peneliti melakukan interview mengenai frekuensi serangan asma dalam tiga bulan terakhir, mengambil debu dari ruang tamu dan ruang tidur pada rumah penderita asma, dan mengidentifikasi tungau debu rumah (TDR) yang ditemukan pada debu. Hasil uji Pearson mendapatkan nilai p=0,011 dan nilai r=0,475 sehingga dapat disimpulkan bahwa terdapat hubungan bermakna antara kepadatan Dermatophagoides spp. dengan frekuensi serangan asma dengan kekuatan korelasi sedang pada penderita asma di RS Paru Jember. Kata Kunci: Dermatophagoides spp., Tungau Debu Rumah (TDR), Asma Abstract. Asthma is a chronic inflammatory disorder of the respiratory system characterized by recurrent episodes of wheezing, shortness of breath, chest tightness, and cough, particularly at night or early morning. About 50-80% of asthma is caused by house dust mite (HDM), especially Dermatophagoides pteronyssinus and Dermatophagoides farinae. This study aimed to investigate the correlation between the density of Dermatophagoides spp. and the frequency of asthma attacks in asthmatic patients at Jember Pulmonary Hospital. This study was an observational analytic study with a cross-sectional design. Respondents were 30 asthmatic patients at Jember Pulmonary Hospital matched with inclusion and exclusion criteria and chose by simple random sampling. Respondents were interviewed about the frequency of asthma attacks in the last three month,s and the hose dust from the living and sleeping rooms were collected for identification of house dust mites (HDM). The pearson test showed a value of p=0.011 and r=0.475. It can be concluded that there is a significant correlation with the moderate strenght between the density of Dermatophagoides spp. and the frequency of asthma attacks in the asthmatic patient at Jember Pulmonary Hospital. Keywords: Dermatophagoides spp., House Dust Mites (HDM), Asthma


2019 ◽  
Vol 34 (7) ◽  
pp. 1291-1291
Author(s):  
P Rivera ◽  
K Savage ◽  
A Ball

Abstract Objective The following case will demonstrate a systematic approach to neuropsychological evaluation with Spanish-speaking individuals, which includes creating a suitable test battery, interpreting results with appropriate normative samples, and incorporating personal history. Case Description 61-year-old, right-handed, Mexican female with 2 years of formal education, and with a recent history of subarachnoid hemorrhage with hydrocephalus. She was referred by her social worker and primary care provider to discern whether the reported cognitive complaints were due to a neurocognitive condition or depression. Diagnostic Impressions and Outcomes The evaluation was administered entirely in Spanish and some exams were modified to accommodate her limited literacy skills. She exhibited deficits in executive functioning, verbal fluency, and memory. Emotional testing revealed moderate depression with anxious distress, which she attributed to significant changes in everyday life. Her family informed us that she was the “matriarch of the family” and worked as a farm field truck driver, with significant difficulties/lack of engagement in both of these roles. Therefore, diagnoses of probable major vascular neurocognitive disorder and major depressive disorder with anxious distress were assigned. With this information, her providers were able to connect the family with community resources. Discussion The Hispanic population continues to be the fastest growing demographic in the United States. As more clinicians will work with members of this ethnicity in outpatient settings, it is important that they incorporate culturally-relevant factors in their approach to testing and interpretation of results. Nonetheless, this case demonstrates the current challenges and limitations, including modification of exams, differences in educational system that underlie test construction, and patient’s history. Recommendations for future areas of study and practice will also be discussed.


2020 ◽  
Vol 89 (1) ◽  
Author(s):  
Santi Saraphol ◽  
Srunya Vajrodaya ◽  
Ekaphan Kraichak ◽  
Anchalee Sirikhachornkit ◽  
Nuttha Sanevas

This study addressed the environmental factors that affect <em>Trentepohlia</em> spp. in the Chiang Dao Wildlife Sanctuary at altitudes of 399 to 1,503 meters above sea level (m a.s.l.) during the rainy, winter, and summer seasons. Species were identified using characteristic morphological identification. The influence of environmental factors on the algae was analyzed using a statistical program, and seasonal changes in the quantity of photosynthetic pigments in the dominant species were evaluated. The average relative humidity was 69.34 ± 12.90%, the average temperature was 26.23 ± 3.79 °C, and the average light intensity was 139.78 ± 42.21 µmol photon m<sup data-id="superscript-1">−2</sup> s<sup data-id="superscript-2">−1</sup>. Thirteen species were found: <em>Trentepohlia chapmanii</em>, <em>Trentepohlia</em> sp. 1, <em>Trentepohlia</em> sp. 2, <em>Trentepohlia sundarbanensis</em>, <em>Trentepohlia</em> sp. 3, <em>Trentepohlia rigidula</em>, <em>Trentepohlia</em> sp. 4, <em>Trentepohlia effusa</em>, <em>Trentepohlia monilia</em>, <em>Trentepohlia abietina</em>, <em>Trentepohlia</em> sp. 5, <em>Trentepohlia aurea</em>, and <em>Trentepohlia umbrina</em>. The largest number of species (seven to nine) were found at lower altitudes, from 473 to 517 m a.s.l. Species diversity was greatest in the winter season (13 species). Species found at low attitude were grouped together (Group 1) and had the greatest diversity, and the remaining species were divided into Groups 2, 3, and 4. Environmental factors had both positive and negative influences on the species, especially <em>T. chapmanii</em>, which was found below 1,003 m a.s.l., and <em>T. monilia</em>, which was found in areas with a high relative humidity of 74.50% to 83.93%. The ratio of the total carotenoids to chlorophyll of <em>T. rigidula</em>, the dominant species, was relatively high at 4.96:1, and the β-carotene content (46.89 %w/w) was highest during winter.


Biomedika ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 98-103
Author(s):  
Ajrina Malia ◽  
Makhabbah Jamilatun ◽  
Aminah Aminah

House dust mite was one of the most common allergens in homes around the world and associated with manifestations of allergies of skin and respiratory tract such as bronchial asthma, allergic rhinitis, and atopic dermatitis. This arthropod was commonly found on carpets, mattresses, children's toys, and other home furnishings. This study was aimed to identify and quantify the number of Dermatophagoides spp in Detention Center. This descriptive study was conducted using flotation method on 52 samples of mattress dust collected in February 2020. The results showed that 49 out of 52 mattress dust samples were positive of Dermatophagoidesspp..Of all Dermatophagoides spp, there were Dermatophagoides pteronyssinus (71.2%) and Dermatophagoides farinae (28.8%). In conclusion, this study found two species of Dermatophagoides spp. in Detention Center and suggested that the fascility maintain the cleanliness of the mattress by drying the mattress and changing the sheets at least once a week.


Author(s):  
Masthu Mastuhu

It is necessary for Islamic educational institutions to have the power of changing themselves to be able to take part in determining the ideal and success of national education. Precisely, today, Islamic educational sys­tem is perceived weak and powerless in the dynamic of social changes have been occurring in the society. Even, this situation, it is frequently assumed as the burden of national education. Why can it be so? Aren't Islamic educational providers are also referring to the only one Law, that is, Law Number 20 year 2003 regarding National Educational System? What is wrong with Islamic education ? How is the quality of human resources of these providers? This article tries to answer those questions. This article also deals with analogue of Islamic Education as a subsystem of national education with family system in Islam. Fam­ily is a system. Child is a subsystem of the family. The more the child is matured and independent the better his/her family is.


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