OBJECTIVE To examine the acaricidal effects of the essential oil of Cymbopogon citratus leaf extract (lemongrass) and ethanolic Azadirachta indica leaf extract (neem) against house dust mites Dermatophagoides farinae (D. farinae) and Dermatophagoides pteronyssinus (D. pteronyssinus). METHODS Twenty-five adults mites were placed onto treated filter paper that is soaked with plant extract and b...

the aim of this study was to assess the frequency of rhinitis in asthmatic infants. a cross-sectional study was conducted using clinical data obtained from a standardized allergy work-up form that includes specific questions on common allergic diseases. asthmatic patients were seen at the first visit to the pediatric allergy unit, from january 2001 to january 2006, were selected for analysis. d...

Background Atopic asthma occurs in a significant percentage of patients in different age groups and the main sensitizing allergens are dust mites. The aim of this study was to assess the levels of total serum IgE, specific IgE to Dermatophagoides pteronyssinus (Dp) and Blomia tropicalis (Bt) in patients with asthma as well as the influence of gender, age and severity of disease in the total ser...

A 14 kDa protein homologous to the γ-d-glutamyl-l-diamino acid endopeptidase members of the NlpC/P60 Superfamily has been described in Dermatophagoides pteronyssinus and Dermatophagoides farinae but it is not clear whether other species produce homologues. Bioinformatics revealed homologous genes in other Sarcopteformes mite species (Psoroptes ovis and Blomia tropicalis) but not in Tetranychus ...

sublingual allergen immunotherapy (slit) is considered to be safer and more convenient than subcutaneus immunotherapy. slit trials with house dust mites involving patients with allergic rhinitis (ar) and asthma reported discordant results. the aim of the study was to investigate the clinical efficacy and safety of slit with dermatophagoides pteronyssinus (d.pt) extract produced in serbia and pa...

Several epidemiological studies suggest that exposure to house dust mite allergens plays a role in the pathogenesis of asthma. Since many of these allergens exhibit enzymatic properties, they may damage the airway epithelium. To characterize the effects of low doses of Dermatophagoides pteronyssinus on the airway epithelium, the effect of D. pteronyssinus on the epithelial bioelectric propertie...

Twenty Japanese mattresses with various periods of use were collected from 11 localities in Japan 2014. Samples the including padding removed at 5 collection points each mattress. The samples divided into 3 layers (upper, middle, and bottom layers), fauna density house-dust mites examined. A total 12,734 10 families 97.0% them belonged to Pyroglyphidae. number was estimated as 4,640 394,240 per...

Summary House dust mites are among the most important allergy triggers worldwide. While of genus Dermatophagoides occur almost worldwide, tropical mite Blomia tropicalis and storage only importance for certain areas or groups people. The allergens pteronyssinus Der p 1, 2, 23 with immunoglobulin E (IgE)-binding frequencies more than 70% high allergenic activity. Also 5, 7, 21, which have IgE-bi...