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At least 271 records · Page 15Linked to original sources
PubMed2005

Ornithonyssus (Acari: Macronyssidae) mite dermatitis in poultry field-workers in Almarg, Qalyobiya governorate.

Cutaneous manifestations of bird and rat mite infestation in man are not easily recognized by physicians or patients. Clinical signs and symptoms are developed secondary to bites of mites that have infested rats, domestic poultry or birds nesting in or near human habitation and comes into contact with man. This study details 4 cases of pruritic dermatitis developed in four field workers in poultry farms in Al-Marg district, Qalyobia governorate, Egypt. The zoonotic species of Ornithoyssus sp., (Family Macronyssidae) was isolated from all samples collected from patients' habitat and the role played by Ornithonyssus mites in causing dermatitis in man was discussed.

Acari↗
PubMedDate not supplied

[Distribution and control of acari as vectors of human disease in urban population of Moscow].

Human ectoparasites, such as itch mites and the follicular mites Demodex brevis and D. folliculorum are notified on the territory of Moscow. The bird and rodent mites Ornythonyssus bacoti and the larvae of harvest mites may attack human beings indoors. The ticks Ixodes ricinus and I. persulcatus begin to inhabit the tree belts and environs of Moscow and other cities and towns. In the cities and towns of more southern regions of the Russian Federation, the red hen-mites Dermanyssus gallinae are also encountered and the ticks Rhipicephalus sanguineus and Ornithodoros papillipes begin to inhabit urban structures. A differential system of their controlling measures is proposed in relation to the habitats of mites and ticks on the urban territories and the results of use of a number of currently available disinfectants are presented.

Acari↗
PubMed2005

Allergenic cross-reactivity between Blomia tropicalis and Blomia kulagini (Acari: Echymiopodidae) extracts from optimized mite cultures.

BACKGROUND: At present, data about the cross-reactivity of Blomia spp. comes from studies made among different genera of mites, and no results have been published involving different species of the genus Blomia. OBJECTIVE: The aim of this study was to find out the level of cross-reactivity between the two main species of Blomia causing allergy, and its implication in the diagnosis of Blomia sensitization. METHODS: Using extracts from optimal growth phases of Blomia kulagini (Zakhvatkin, 1936) and Blomia tropicalis (van Bronswijk, Cock and Oshima, 1973) as allergenic material, the allergenic cross-reactivity between both house dust mites was evaluated by means of cutaneous tests, specific IgE values, ImmunoCAP-inhibition and SDS-PAGE-IgE-immunoblotting-inhibition. RESULTS: The results demonstrated that IgE-binding components belonging to both species are very similar from the immunological point of view, showing high correlations between both species when using cutaneous tests (R2=0.915) or specific IgE (R2=0.980). ImmunoCAP-inhibition and SDS-PAGE-IgE-Immunoblotting-inhibition probed with human sera, showed a total inhibition of specific IgE reactions by the heterologous antigens. CONCLUSION: The results obtained strongly suggest the great resemblance between the allergenic composition of both species.

Acari↗
PubMedDate not supplied

[Tarsal sensory complex of the red chicken mite Dermanyssus gallinae (Acari: Dermanyssidae)].

The tarsal sensory complex of the red chicken mite Dermanyssus gallinae is situated on dorsal surface of each fore leg near the claw. It comprises 28 sensilla of 5 morphological types: 4 SW-UP (single-wall upper-pore) (gustatory organs), 8 SW-WP (single-wall wall-pore) (olfactory organs), 8 DW-WP (double-wall wall-pore) of two subtypes (thermo-chemoreceptory organs), 6 NP-TB (no pore--tubular body) (tactile organs), and 2 reduced sensilla. No sex or stage dimorphism was revealed. Morphological data point to the fact that tarsal sensory complex of the red chicken mite is mainly an organ detecting temperature changes and olfactory stimula.

Acari↗
PubMed2000

[Parasitic Acari of wild boar (Sus scrofa L.) from Pomerania lake district].

In years 1994-1998, 553 Wild Boars (Sus scrofa L.) were examined in the area of north-western part of Poland. Four species of parasitic acarids were found: Demodex phylloides, Sarcoptes scabiei, Dermacentor reticulatus and Ixodes ricinus. The highest infestation was observed in the case of D. phylloides (30%), the next from the top was presented by Ixodes ricinus (17%). S. scabiei and D. reticulatus occured seldom.

Acari↗
PubMedDate not supplied

[Pathology caused by acari].

This report concerns the observations the Authors have been carrying out for over twelve years in Sardinia; they regard the sensitization to house dust mites (Dermatophagoides pteronyssinus, Dermatophagoides farinae) and to storage mites (Acarus siro, Glycyphagus domesticus, Lepidoglyphus destructor, Tyrophagus putrescentiae) and are been obtained with: 1) skin tests with mite extracts; 2) RadioAllergoSorbentTest (RAST) for specific IgE and IgG; 3) mite exposure in homes and mite analysis; 4) hyposensitisation with personal time-lag vaccines holding one or more "storage" or "house dust" mites. They are been prepared on the ground of RAST, skin tests, clinical symptomatology and environmental exposure to mites; 5) clinical control after therapy with vaccines for a period of five till to ten years. The Authors obtained unusual results.

Acari↗
PubMed1987

[RAST and acari in stored goods].

During a multicentre trial, responses of serum from 60 asthmatic children with allergy to the mite Dermatophagoides pteronyssinus (D1) were compared to D. farinae (D2) and 4 storage mites. The known cross reaction between D1 and D2 was confirmed but no such reaction was found between D1 and/or D2 and the storage mites. Because the important cross reactivity between storage mites, the choice of the allergen will depend on the historical and epidemiological data of the disease.

Acari↗
PubMed1987

Ixodes affinis Neumann (Acari: Ixodidae): new host and distribution records, description of immatures, seasonal activities in Georgia, and laboratory rearing.

New host and distributional records, seasonal activities in Georgia, laboratory rearing data, and taxonomic description of nymphal and larval Ixodes affinis are presented. Our data expand the list of known natural hosts of this species, record for the first time several natural hosts of larvae and nymphs, provide information on feeding periods of all stages, preecdysial intervals, preovipositional, ovipositional, and incubational periods, as well as provide information on fecundity. The immatures are fully described and SEM micrographs of them are presented.

Acari↗
PubMed1985

[Acari of food storage facilities. An ecologic and immuno-allergic study].

The authors studied the commonest species of storage mites, living in granaries and in house dust. They found nine species of mites belonging to different systematic groups and were identified: Acarus siro, Tyrophagus putrescentiae, Glycyphagus domesticus, Lepidoglyphus destructor, Chortoglyphus arcuatus, Androlaelaps casalis, Cheyletus fortis, Cheyletus tenuipilis, Thyreophagus entomophagus. Skin tests were performed on 14 patients with house dust allergy, using extracts of three storage mites, most commonly found in house dust (Acarus siro, Glycyphagus domesticus, Lepidoglyphus destructor) and Euroglyphus maynei, Dermatophagoides pteronyssinus, Dermatophagoides farinae. The results of the skin tests have suggested that sensitization to storage mites may be due a degree of cross-reaction between storage species and the two Dermatophagoides.

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