22,390 results match your criteria mites


Laboratory diagnosis of mange-causing mites in dogs using a modified centrifugation-flotation technique in sucrose solution.

Exp Appl Acarol 2021 Sep 24. Epub 2021 Sep 24.

Departamento de Medicina Veterinária do Instituto Federal de Educação, Ciência e Tecnologia da Paraíba (IFPB), Sousa, Paraíba, Brazil.

Among the skin disorders of dogs, scabies is notable for its high occurrence rate and the need for veterinary interventions. There are two obstacles to making this diagnosis through direct investigation under a microscope (DIM): the continual need to make new slides when the results are negative and the long time needed for reading these slides. Thus, the objective of the present study was to compare efficacy between DIM and the technique of centrifugation-flotation in sucrose solution (CFSS) in samples from dogs in the semiarid region of the state of Paraíba, Brazil. Read More

View Article and Full-Text PDF
September 2021

Patterns of reproductive isolation in a haplodiploid mite, Amphitetranychus viennensis: prezygotic isolation, hybrid inviability and hybrid sterility.

BMC Ecol Evol 2021 Sep 23;21(1):177. Epub 2021 Sep 23.

Laboratory of Applied Entomology and Zoology, Faculty of Agriculture, Ibaraki University, Ami, Ibaraki, 300-0393, Japan.

Background: Evolution of reproductive isolation is an important process, generating biodiversity and driving speciation. To better understand this process, it is necessary to investigate factors underlying reproductive isolation through various approaches but also in various taxa. Previous studies, mainly focusing on diploid animals, supported the prevalent view that reproductive barriers evolve gradually as a by-product of genetic changes accumulated by natural selection by showing a positive relationship between the degree of reproductive isolation and genetic distance. Read More

View Article and Full-Text PDF
September 2021

Facial Spinulate Demodicosis.

Clin Cosmet Investig Dermatol 2021 14;14:1211-1214. Epub 2021 Sep 14.

Department of Internal Medicine, Umm Al-Qura University, Makkah, Saudi Arabia.

Hyperkeratotic spicules are rare cutaneous lesions associated with underlying systemic illnesses. In more recent times, facial spinulate demodicosis has been suggested as an etiological factor. Demodicosis is a common dermatological condition characterized by the presence of Demodex mites in the pilocutaneous follicles. Read More

View Article and Full-Text PDF
September 2021

Indoor and Outdoor Rodent Hosts of Orientia tsutsugamushi, Shandong Province, China.

Emerg Infect Dis 2021 ;27(10):2731-2734

During December 2012-July 2016, we tested small indoor and outdoor mammals in Qingdao, China, for Orientia tsutsugamushi infection. We found that outdoor Apodemus agrarius mice, Cricetulus barabensis hamsters, and Niviventer confucianus rats, as well as indoor Mus musculus mice, tested positive for O. tsutsugamushi by PCR. Read More

View Article and Full-Text PDF
January 2021

Trophic level drives the host microbiome of soil invertebrates at a continental scale.

Microbiome 2021 Sep 20;9(1):189. Epub 2021 Sep 20.

State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.

Background: Increasing our knowledge of soil biodiversity is fundamental to forecast changes in ecosystem functions under global change scenarios. All multicellular organisms are now known to be holobionts, containing large assemblages of microbial species. Soil fauna is now known to have thousands of species living within them. Read More

View Article and Full-Text PDF
September 2021

The cell invasion preference of Varroa destructor between the original and new honey bee hosts.

Int J Parasitol 2021 Sep 17. Epub 2021 Sep 17.

Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou 510260, China. Electronic address:

Honey bees (Apis) are important pollinators for food crops and wild plants, but are facing great threats from pathogens and parasites, especially an obligate ectoparasitic mite, Varroa destructor. Cell invasion is a key step for V. destructor to reproduce, and the parasite displays remarkable host preference in this process. Read More

View Article and Full-Text PDF
September 2021

Taxonomic Diversity of the Quill Mites of the Family Syringophilidae (Acariformes: Prostigmata) Associated With Old World Parrots (Psittaciformes: Psittaculidae).

J Med Entomol 2021 Sep 20. Epub 2021 Sep 20.

Department of Animal Morphology, Faculty of Biology, Adam Mickiewicz University in Poznan, Poznan, Poland.

The quill mite fauna of the family Syringophilidae Lavoipierre, 1953 (Acariformes: Prostigmata) associated with parrots (Aves: Psittaciformes) are reviewed. Seven new species are described: Pipicobia cyclopsitta Marciniak-Musial, Hromada & Sikora sp. nov. Read More

View Article and Full-Text PDF
September 2021

Resistance and Vulnerability of Honeybee () Gut Bacteria to Commonly Used Pesticides.

Front Microbiol 2021 3;12:717990. Epub 2021 Sep 3.

Section for Ecology and Evolution, Department of Biology, University of Copenhagen, Copenhagen, Denmark.

Agricultural and apicultural practices expose honeybees to a range of pesticides that have the potential to negatively affect their physiology, neurobiology, and behavior. Accumulating evidence suggests that these effects extend to the honeybee gut microbiome, which serves important functions for honeybee health. Here we test the potential effects of the pesticides thiacloprid, acetamiprid, and oxalic acid on the gut microbiota of honeybees, first in direct inhibition assays and secondly in an caged bee experiment to test if exposure leads to gut microbiota community changes. Read More

View Article and Full-Text PDF
September 2021

A Endosymbiont Is a Potential Source of Essential B-Vitamins for the Poultry Red Mite, .

Front Microbiol 2021 3;12:695346. Epub 2021 Sep 3.

Moredun Research Institute, Penicuik, United Kingdom.

Many obligate blood-sucking arthropods rely on symbiotic bacteria to provision essential B vitamins that are either missing or at sub-optimal levels in their nutritionally challenging blood diet. The poultry red mite , an obligate blood-feeding ectoparasite, is a serious threat to the hen egg industry. Poultry red mite infestation has a major impact on hen health and welfare and causes a significant reduction in both egg quality and production. Read More

View Article and Full-Text PDF
September 2021

First report of interspecific transmission of sarcoptic mange from Iberian ibex to wild boar.

Parasit Vectors 2021 Sep 19;14(1):481. Epub 2021 Sep 19.

Espacio Natural de Sierra Nevada and Wildlife Ecology & Health Group (WE&H), Pinos Genil, Granada, Spain.

Background: Sarcoptic mange is a globally distributed parasitic disease caused by the burrowing mite Sarcoptes scabiei. This mite has a certain degree of host specificity, although interspecific transmission can occur among phylogenetically related species or through prey-predator mediated exposure. In 2018, a wild boar (Sus scrofa) with lesions compatible with sarcoptic mange was hunted in Ports de Tortosa i Beseit Natural Park (PTB, north-eastern Spain), where an active epizootic outbreak of sarcoptic mange is affecting Iberian ibexes (Capra pyrenaica) since 2014. Read More

View Article and Full-Text PDF
September 2021

Recent amplification of microsatellite-associated miniature inverted-repeat transposable elements in the pineapple genome.

BMC Plant Biol 2021 Sep 18;21(1):424. Epub 2021 Sep 18.

Texas A&M AgriLife Research Center at Dallas, Texas A&M University System, Dallas, TX, 75252, USA.

Background: Miniature inverted-repeat transposable elements (MITEs) are non-autonomous DNA transposable elements that play important roles in genome organization and evolution. Genome-wide identification and characterization of MITEs provide essential information for understanding genome structure and evolution.

Results: We performed genome-wide identification and characterization of MITEs in the pineapple genome. Read More

View Article and Full-Text PDF
September 2021

Haplotype divergence supports long-term asexuality in the oribatid mite .

Proc Natl Acad Sci U S A 2021 Sep;118(38)

Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland.

Sex strongly impacts genome evolution via recombination and segregation. In the absence of these processes, haplotypes within lineages of diploid organisms are predicted to accumulate mutations independently of each other and diverge over time. This so-called "Meselson effect" is regarded as a strong indicator of the long-term evolution under obligate asexuality. Read More

View Article and Full-Text PDF
September 2021

Environmental allergens trigger type 2 inflammation through ripoptosome activation.

Nat Immunol 2021 Sep 16. Epub 2021 Sep 16.

Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.

Environmental allergens, including fungi, insects and mites, trigger type 2 immunity; however, the innate sensing mechanisms and initial signaling events remain unclear. Herein, we demonstrate that allergens trigger RIPK1-caspase 8 ripoptosome activation in epithelial cells. The active caspase 8 subsequently engages caspases 3 and 7, which directly mediate intracellular maturation and release of IL-33, a pro-atopy, innate immunity, alarmin cytokine. Read More

View Article and Full-Text PDF
September 2021

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

Sci Rep 2021 Sep 16;11(1):18453. Epub 2021 Sep 16.

Department of Parasitology, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, Katowice, Poland.

Exposure 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. Read More

View Article and Full-Text PDF
September 2021

Prevalence and risk factors associated with cat parasites in Italy: a multicenter study.

Parasit Vectors 2021 Sep 15;14(1):475. Epub 2021 Sep 15.

Dipartimento Di Scienze Medico-Veterinarie, Università Di Parma, via del Taglio, 10, 43126, Parma, Italy.

Background: Parasites that infect cats include protozoa, helminths and arthropods, many of which are transmissible to humans. Effective control relies on a good knowledge of parasite distribution and the risk factors for infection. The present study was aimed at evaluating the prevalence of major feline parasites in Italy and the risk factors associated with their occurrence. Read More

View Article and Full-Text PDF
September 2021

Fecal glucocorticoid metabolites and ectoparasites as biomarkers of heat stress close to roads in a Mediterranean lizard.

Sci Total Environ 2021 Aug 26;802:149919. Epub 2021 Aug 26.

Road Ecology Lab, Department of Biodiversity, Ecology and Evolution, School of Biology, Complutense University of Madrid, Spain.

Differences between air and ground temperatures are expected to narrow with the advance of the season in temperate regions (aka seasonal restriction in the availability of thermal microhabitats), which may activate behavioral and physiological responses of ectotherm species adapted to temperate climates. However, according to cost-benefit models of ectotherm thermoregulation, we hypothesize that these responses may also carry some costs. We quantified seasonal shifts in thermoregulatory precision, concentration of fecal glucocorticoid metabolites, and load of ectoparasites in a Mediterranean lizard, Psammodromus algirus. Read More

View Article and Full-Text PDF

Biodegradation of phorate by bacterial strains in the presence of humic acid and metal ions.

J Basic Microbiol 2021 Sep 14. Epub 2021 Sep 14.

Department of Microbiology, Lovely Professional University, Jalandhar, Punjab, India.

Phorate is a systemic insecticide used to eradicate mites, insects, and nematodes. Extensive use of this organophosphate has engendered severe environmental concerns. The current research aimed to explore the kinetic pathways of phorate biodegradation in aqueous solutions. Read More

View Article and Full-Text PDF
September 2021

In vitro characterization of adipocyte plasma membrane-associated protein from poultry red mites, Dermanyssus gallinae, as a vaccine antigen for chickens.

Vaccine 2021 Sep 8. Epub 2021 Sep 8.

Department of Disease Control, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan; Department of Advanced Pharmaceutics, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan.

The poultry red mite (Dermanyssus gallinae; PRM) is a blood-sucking ectoparasite of chickens that is a threat to poultry farming worldwide and significantly reduces productivity in the egg-laying industry. Chemical acaricides that are widely used in poultry farms for the prevention of PRMs are frequently ineffective due to the emergence of acaricide-resistant PRMs. Therefore, alternative control methods are needed, and vaccination is a promising strategy for controlling PRMs. Read More

View Article and Full-Text PDF
September 2021

Scrub Typhus among Febrile Children in a Tertiary Care Center of Central Nepal: A Descriptive Cross-sectional Study.

JNMA J Nepal Med Assoc 2021 May 25;59(237):437-441. Epub 2021 May 25.

Department of Pediatrics, College of Medical Sciences and Teaching Hospital, Bharatpur, Chitwan, Nepal.

Introduction: Scrub typhus is a mite borne infectious disease caused by Orientia tsutsugamushi, obligate intracellular bacteria, transmitted by chigger mites. Scrub typhus is an emerging febrile illness with clinical suspicion being the only key to diagnosis. This study was conducted to find out the prevalence of Scrub typhus among febrile children in a tertiary care center of central Nepal. Read More

View Article and Full-Text PDF

Thermal processing of insect allergens and IgE cross-recognition in Italian patients allergic to shrimp, house dust mite and mealworm.

Food Res Int 2021 Oct 30;148:110567. Epub 2021 Jun 30.

Institute of Sciences of Food Production-CNR, Grugliasco, (TO), Italy. Electronic address:

Edible insects are considered as a promising and sustainable alternative protein source for humans, although risk assessments, with particular reference to the allergic potential of insect proteins, are required. Considering that insects are likely to be consumed after processing, it is crucial to assess how processing can influence allergenicity. In our study, we investigated how boiling and frying affect the IgE cross-recognition of proteins from five edible insects (mealworm, buffalo worm, silkworm, cricket and grasshopper). Read More

View Article and Full-Text PDF
October 2021

Prevalence of Aeroallergens in Allergic Rhinitis in a Tertiary Care Hospital.

JNMA J Nepal Med Assoc 2020 Nov 22;58(231):866-870. Epub 2020 Nov 22.

Department of Otorhinolaryngology and Head and Neck Surgery, Kathmandu University School of Medical Sciences Dhulikhel Hospital, Dhulikhel, Kavre, Nepal.

Introduction: The prevalence of allergic rhinitis has increased significantly globally over the last two decades. Detection of sensitizing aeroallergens plays a crucial role in the diagnosis and management of this troublesome disease. This study aims to investigate the spectrum of aeroallergens sensitization in patients with allergic rhinitis in a tertiary care hospital. Read More

View Article and Full-Text PDF
November 2020

Honey bee Apis mellifera larvae gut microbial and immune, detoxication responses towards flumethrin stress.

Environ Pollut 2021 Sep 4;290:118107. Epub 2021 Sep 4.

Honeybee Research Institute, Jiangxi Agricultural University, Nanchang, 330045, PR China; Jiangxi Province Key Laboratory of Honeybee Biology and Beekeeping, Nanchang, 330045, PR China. Electronic address:

Mites are considered the worst enemy of honey bees, resulting in economic losses in agricultural production. In apiculture, flumethrin is frequently used to control mites. It causes residues of flumethrin in colonies which may threaten honey bees, especially for larvae. Read More

View Article and Full-Text PDF
September 2021

Extended depth of focus ultraviolet imaging compared with laser scanning confocal microscopy for the study of micro-Arthropoda surface texture, with the description of a new species of Brachypodopsis (Acari: Hydrachnidia).

Microsc Res Tech 2021 Sep 8. Epub 2021 Sep 8.

Museo Nacional de Ciencias Naturales, CSIC, Madrid, Spain.

Visualization and representation are two processes at the core of basic biodiversity studies. Visualization involves the examination, sorting, and evaluation of similarities and differences among specimens by specialists who then assign them to the same or different species. It is a cognitive process. Read More

View Article and Full-Text PDF
September 2021

New insights in mite immunotherapy - sublingual tablets.

Curr Opin Allergy Clin Immunol 2021 Sep 7. Epub 2021 Sep 7.

Division of Allergy & Clinical Immunology, Johns Hopkins School of Medicine, Creticos Research Group, Crownsville, Maryland, USA.

Purpose Of Review: Sublingual tablet immunotherapy has been demonstrated to be effective for allergies induced by exposure to grass, ragweed, specific trees (Japanese Cedar; birch homologous tree mix), and house dust mites (HDM). This review provides both an overview of the evidence-based clinical studies that address the use of the HDM SLIT-tablet for the treatment of HDM-induced allergic rhinitis/conjunctivitis and its appropriate use in carefully selected asthmatic patients and provides the clinician with practical management considerations.

Recent Findings: Solid evidence-based clinical studies have shown that the HDM SLIT-tablet is both well tolerated in patients with mild-to-moderate asthma and has demonstrated a meaningful improvement in exacerbations, need for rescue medication, quality of life, and asthma control. Read More

View Article and Full-Text PDF
September 2021

Bullous Scabies: Clinical, Dermoscopic, and Pathologic Characteristics of 10 Patients.

Am J Trop Med Hyg 2021 Sep 7. Epub 2021 Sep 7.

Bullous scabies (BS) is a rare atypical clinical variant of scabies and is easily confused with bullous disorders. The diagnosis of BS is always a challenge, and physicians often misdiagnose BS patients. Patients with BS admitted from 2012 to 2020 were enrolled in this study. Read More

View Article and Full-Text PDF
September 2021

Spider mite egg extract modifies Arabidopsis response to future infestations.

Sci Rep 2021 Sep 6;11(1):17692. Epub 2021 Sep 6.

Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Madrid, Spain.

Transcriptional plant responses are an important aspect of herbivore oviposition studies. However, most of our current knowledge is derived from studies using Lepidopteran models, where egg-laying and feeding are separate events in time. Little is known regarding plant response to pests where females feed and oviposit simultaneously. Read More

View Article and Full-Text PDF
September 2021

Epicutaneous challenge with protease allergen requires its protease activity to recall T2 and T17/T22 responses in mice pre-sensitized via distant skin.

J Immunotoxicol 2021 12;18(1):118-126

Safety Science Research Laboratories, Kao Corporation, Tochigi, Japan.

Epicutaneous exposure to allergenic proteins is an important sensitization route for skin diseases like protein contact dermatitis, immunologic contact urticaria, and atopic dermatitis. Environmental allergen sources such as house dust mites contain proteases, which are frequent allergens themselves. Here, the dependency of T-helper (T) cell recall responses on allergen protease activity in the elicitation phase in mice pre-sensitized via distant skin was investigated. Read More

View Article and Full-Text PDF
December 2021

Nasopulmonary mites (Halarachnidae) of coastal Californian pinnipeds: Identity, prevalence, and molecular characterization.

Int J Parasitol Parasites Wildl 2021 Dec 14;16:113-119. Epub 2021 Aug 14.

School of Veterinary Medicine, Department of Medicine and Epidemiology, University of California Davis, 1320D Tupper Hall, Davis, CA, 95616, USA.

Mites from the family Halarachnidae Oudemans 1906 are obligate endoparasites that colonize the respiratory tracts of free-living and captive marine mammals. Infestations can range from mild to severe and result in respiratory tract irritation or impairment. Nasopulmonary acariasis was determined to be a contributing cause of death among several southern sea otters Merriam 1904 in a longitudinal study of otter mortality, and proximity to Pacific harbor seals Gray 1864 was a significant risk factor for sea otter infestation. Read More

View Article and Full-Text PDF
December 2021

Acari-caused human diseases with skin symptoms

Orv Hetil 2021 09 5;162(36):1430-1437. Epub 2021 Sep 5.

1 Borsod-Abaúj-Zemplén Megyei Központi Kórház és Egyetemi Oktatókórház, Bőrgyógyászati Osztály, Miskolc, Csabai kapu 9-11., 3529.

Összefoglaló. Az atkák alosztálya heterogén csoport. Az eltérő megjelenésű és életformájú atkák növényeken, állatokon és embereken is képesek különféle megbetegedéseket okozni, melyek csípés, táplálkozás, élősködés, vektorként terjesztett kórokozók által valósulhatnak meg. Read More

View Article and Full-Text PDF
September 2021

Multiple TaqMan qPCR and droplet digital PCR (ddPCR) diagnostics for pesticide resistance monitoring and management, in the major agricultural pest Tetranychus urticae.

Pest Manag Sci 2021 Sep 3. Epub 2021 Sep 3.

Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion, Greece.

Background: Decisions on which pesticide to use in agriculture are expected to become more difficult, as the number of available chemicals is decreasing. For Tetranychus urticae (T. urticae), a major pest for which a number of candidate markers for pesticide resistance are in place, molecular diagnostics could support decision-making for the rational use of acaricides. Read More

View Article and Full-Text PDF
September 2021