PubMed Health⌕ Search

SEARCH · PubMed Health

Results for “ACARUS”

Explore indexed PubMed citations for clinical trials, systematic reviews and public health research. Read source abstracts and follow each citation to its original PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 37 records · Page 2Linked to original sources
PubMedDate not supplied

[Sensitization to the acarus Blomia tropicalis in patients with respiratory allergy].

House dust mites are important environmental allergens in Southern Brazil. Some allergic patients do not respond to specific immunotherapy for Dermatophagoides ssp. For that reason we decided to evaluate the skin test sensitivity to tropical mites, Blomia tropicalis and Blomia kulagini. Patients with perennial allergic rhinitis and/or asthma were selected for tests. (N = 135). The wheals cross diameter were recorded. The frequency of strong reactions were 82% for B. tropicalis, 69% for D. pteronyssinus, 56% for D. farinae and 46% for B. kulagini. Wheals were larger with Dermatophagoides sp in 30 patients (22%); similar in 61 patients (45%) and larger with-Blomia sp in 44 patients (33%). Three patients reacted only to Blomia. This study verifies that sensitization to Blomia is common in patients with respiratory allergy. In addition it contains unique allergens that could account for treatment failures with Dermatophagoides in some cases.

Acari↗
PubMedDate not supplied

Study of the possible crossed reactivity between D. pteronyssinus and non pyroglyphide acarus. 1. Skin tests and FAST inhibition.

On 132 patients with case history of rhinitis and/or asthma in a domestic environment and with positive cutaneous tests contrasted with D. pteronyssinus, we have made cutaneous tests compared to said antigen and compared with D. farinae, L. destructor and A. siro, with extracts 5000 E/ml (Noon Units), as well as FAST inhibition, using D. pteronyssinus in its solid phase and all the above mentioned extracts in their liquid phase. Our results show that the frequency of D. pteronyssinus positivities in prick is greater than the other mites as well as the intensity of the response expressed in the size of the wheal showing significant differences between those found for D. pteronyssinus and those obtained with other mites. In turn those obtained with the D. farinae are significantly greater than those obtained with non-pyroglyphide mites. In FAST inhibition we only found a good correlation for D. pteronyssinus-D. pteronyssinus and D. pteronyssinus-D. farinae and there is no good correlation between the other mites. The correlation coefficients differ significantly except for those of the pyroglyphides, and the regression equations show a lack of parallelism in the regression lines. Consequently, on the basis of this study, we conclude that there is no crossed reactivity between D. peteronyssinus and non-pyroglyphide mites.

Animals↗
PubMed1986

[Can Acarus siro be considered an allergenic mite in children? Evaluation of 248 cases].

Among 248 allergic children we noted 44 children (21%) with strongly or moderately positive cutaneous tests (In seven out of these tested children respiratory provocation tests are very positive). They are urban children and their houses are not different from other allergic children. They are mostly boys (72%), more than 5 years old (91%), with an asthma (84%), a radiological sinusitis (45%), an hypereosinophilia (88%) and elevated total IgE (90%). 43/44 children also have positive cutaneous tests to Dermatophagoides pteronyssinus mite. Since respiratory sensitivity is exquisite, we undertook a specific hyposensitization for some patients with encouraging results.

Allergens↗
PubMed1975

Scanning electron microscopy of acarus scabiei.

Details in the anatomy of sarcoptes scabiei var. hominis are described. Scanning electron microscopy is of help in illustrating this parasite which is commonly seen in clinical practice. The technique also provides the possibility to differentiate between various types of mite.

Acari↗