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https://www.readbyqxmd.com/read/29792201/cerium-dioxide-nanoparticles-exacerbate-house-dust-mite-induced-type-ii-airway-inflammation
#1
Kirsty Meldrum, Sarah B Robertson, Isabella Römer, Tim Marczylo, Lareb S N Dean, Andrew Rogers, Timothy W Gant, Rachel Smith, Terry D Tetley, Martin O Leonard
BACKGROUND: Nanomaterial inhalation represents a potential hazard for respiratory conditions such as asthma. Cerium dioxide nanoparticles (CeO2 NPs) have the ability to modify disease outcome but have not been investigated for their effect on models of asthma and inflammatory lung disease. The aim of this study was to examine the impact of CeO2 NPs in a house dust mite (HDM) induced murine model of asthma. RESULTS: Repeated intranasal instillation of CeO2 NPs in the presence of HDM caused the induction of a type II inflammatory response, characterised by increased bronchoalveolar lavage eosinophils, mast cells, total plasma IgE and goblet cell metaplasia...
May 23, 2018: Particle and Fibre Toxicology
https://www.readbyqxmd.com/read/29790007/sublingual-immunotherapy-decreases-expression-of-interleukin-33-in-children-with-allergic-rhinitis
#2
Yuanming Wang, Chuling Li, Yaxiong Xu, Deyu Xu, Gang Yang, Fang Liao, Xianglin Luo
OBJECTIVES: To identify the expression of IL-33 during SLIT (Sublingual immunotherapy) in AR (Allergic rhinitis) children. METHODS: Thirty children received house dust mite (HDM) allergen extract for SLIT and thirty children received placebo in this study. Serum and nasal lavage samples of cases and controls were collected at different time points during SLIT. Interleukin (IL)-33 and other cytokines were estimated in these samples by enzyme-linked immuno sorbent assay (ELISA)...
May 23, 2018: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/29785892/the-monogenean-paradiplozoon-ichthyoxanthon-behaves-like-a-micropredator-on-two-of-its-hosts-as-indicated-by-stable-isotopes
#3
B Sures, M Nachev, B M Gilbert, Q M Dos Santos, M A Jochmann, D Köster, T C Schmidt, A Avenant-Oldewage
The analysis of stable isotopes of carbon and nitrogen has been used as a fingerprint for understanding the trophic interactions of organisms. Most of these studies have been applied to free-living organisms, while parasites have largely been neglected. Studies dealing with parasites so far have assessed the carbon and nitrogen signatures in endoparasites or ectoparasites of different hosts, without showing general trends concerning the nutritional relationships within host-parasite associations. Moreover, in most cases such systems involved a single host and parasite species...
May 22, 2018: Journal of Helminthology
https://www.readbyqxmd.com/read/29783941/a-transposable-element-annotation-pipeline-and-expression-analysis-reveal-potentially-active-elements-in-the-microalga-tisochrysis-lutea
#4
Jérémy Berthelier, Nathalie Casse, Nicolas Daccord, Véronique Jamilloux, Bruno Saint-Jean, Grégory Carrier
BACKGROUND: Transposable elements (TEs) are mobile DNA sequences known as drivers of genome evolution. Their impacts have been widely studied in animals, plants and insects, but little is known about them in microalgae. In a previous study, we compared the genetic polymorphisms between strains of the haptophyte microalga Tisochrysis lutea and suggested the involvement of active autonomous TEs in their genome evolution. RESULTS: To identify potentially autonomous TEs, we designed a pipeline named PiRATE (Pipeline to Retrieve and Annotate Transposable Elements, download: https://doi...
May 22, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29782067/sublingual-immunotherapy-for-pediatric-allergic-conjunctivitis-a-meta-analysis-of-randomized-controlled-trials
#5
Jie Yang, Li Zhang, Zhixiang Zhao, Shiyu Liao
BACKGROUND: Allergic conjunctivitis (AC) is a common chronic condition, especially in children. Ocular symptoms are often overlooked during treatment of allergic rhinoconjunctivitis (ARC). Pediatric ARC can be effectively treated using sublingual immunotherapy (SLIT), which is a guideline-recommended safe treatment approach. However, the therapeutic efficacy of SLIT in terms of ameliorating eye symptoms has not been effectively evaluated. METHODS: We performed a meta-analysis of randomized controlled trials (RCTs) evaluating the use of SLIT for infants, children, and adolescents (aged from 3 to 18 years) with AC or ARC...
May 21, 2018: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/29775026/-clinical-study-on-serum-25-oh-d-level-in-patients-with-moderate-to-severe-allergic-rhinitis
#6
J Y Tan, T Liu, L X Zhang
Objective: Through the detection of the serum 25 (OH) D level of patients with moderate to severe allergic rhinitis (AR), we preliminarily explored the mechanism of vitamin D on AR and provided evidence for the control of AR. Method: Eighty cases of moderate to severe AR and 65 healthy adults were selected as the subjects. The level of 25 (OH) D was detected by enzyme-linked immunosorbent assay (ELISA), and the serum 25 (OH) D level of eight common serum allergens in patients with moderate to severe AR was analyzed...
February 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29771941/efficacy-of-ivermectin-mass-drug-administration-to-control-scabies-in-asylum-seekers-in-the-netherlands-a-retrospective-cohort-study-between-january-2014-march-2016
#7
Dorien T Beeres, Sofanne J Ravensbergen, Annelies Heidema, Darren Cornish, Machiel Vonk, Leonie D Wijnholds, Jessica J H Hendriks, Johanneke Kleinnijenhuis, Till F Omansen, Ymkje Stienstra
Scabies is a skin infestation with the mite Sarcoptes scabiei causing itch and rash and is a major risk factor for bacterial skin infections and severe complications. Here, we evaluated the treatment outcome of 2866 asylum seekers who received (preventive) scabies treatment before and during a scabies intervention programme (SIP) in the main reception centre in the Netherlands between January 2014 and March 2016. A SIP was introduced in the main national reception centre based on frequent observations of scabies and its complications amongst Eritrean and Ethiopian asylum seekers in the Netherlands...
May 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29769620/carvacrol-and-linalool-co-loaded-in-%C3%AE-cyclodextrin-grafted-chitosan-nanoparticles-as-sustainable-biopesticide-aiming-pest-control
#8
Estefânia V R Campos, Patrícia L F Proença, Jhones L Oliveira, Anderson E S Pereira, Lígia Nunes de Morais Ribeiro, Fabrício O Fernandes, Kelly C Gonçalves, Ricardo A Polanczyk, Tatiane Pasquoto-Stigliani, Renata Lima, Cirano C Melville, Jaqueline F Della Vechia, Daniel J Andrade, Leonardo F Fraceto
Pesticides are the main tactics for pest control because they reduce the pest population very fast and their efficiency does not depend on abiotic factors. However, the indiscriminate use of these substances can speed up the development of resistant populations and causing environmental contamination. Therefore, alternative methods of pest control are sought, such as the use of botanical compounds. Nanoencapsulation of volatile compounds has been shown to be an important tool that can be used to overcome the lack of stability of these compounds...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29769608/rapid-parallel-evolution-overcomes-global-honey-bee-parasite
#9
Melissa Oddie, Ralph Büchler, Bjørn Dahle, Marin Kovacic, Yves Le Conte, Barbara Locke, Joachim R de Miranda, Fanny Mondet, Peter Neumann
In eusocial insect colonies nestmates cooperate to combat parasites, a trait called social immunity. However, social immunity failed for Western honey bees (Apis mellifera) when the ectoparasitic mite Varroa destructor switched hosts from Eastern honey bees (Apis cerana). This mite has since become the most severe threat to A. mellifera world-wide. Despite this, some isolated A. mellifera populations are known to survive infestations by means of natural selection, largely by supressing mite reproduction, but the underlying mechanisms of this are poorly understood...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29769473/-a-case-of-oral-mite-anphylaxis-in-which-basophil-activation-test-was-useful-for-diagnosis
#10
Shintaro Kamizono, Tamotsu Fujimoto
We treated a 13-year-old girl who developed dyspnea after ingestion of okonomiyaki, a Japanese savory pancake prepared from takoyaki flour mix that was opened several months ago and had been stored at ambient temperature. She was found to be sensitized to mite antigen, and microscopic examination of the flour specimen revealed contamination with mites. Therefore, she was diagnosed with oral mite anaphylaxis (OMA). For a more definitive diagnosis, we performed the basophil activation test (BAT) not only in this patient but also in a healthy woman who was not sensitized to mite (control), using the mite-contaminated flour and unopened takoyaki flour mix as antigens...
2018: Arerugī, [Allergy]
https://www.readbyqxmd.com/read/29769468/-the-official-manual-book-on-allergen-immunotherapy-in-house-dust-mite-allergy
#11
Makoto Nagata
No abstract text is available yet for this article.
2018: Arerugī, [Allergy]
https://www.readbyqxmd.com/read/29769145/phylogenetic-relationships-stage-specific-expression-and-localisation-of-a-unique-family-of-inactive-cysteine-proteases-in-sarcoptes-scabiei
#12
Deepani D Fernando, Simone L Reynolds, Martha Zakrzewski, Ehtesham Mofiz, Anthony T Papenfuss, Deborah Holt, Katja Fischer
BACKGROUND: Scabies is worldwide one of the most common, yet neglected, parasitic skin infections, affecting a wide range of mammals including humans. Limited treatment options and evidence of emerging mite resistance against the currently used drugs drive our research to explore new therapeutic candidates. Previously, we discovered a multicopy family of genes encoding cysteine proteases with their catalytic sites inactivated by mutation (SMIPP-Cs). This protein family is unique in parasitic scabies mites and is absent in related non-burrowing mites...
May 16, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29768484/herbivory-responsive-calmodulin-like-protein-cml9-does-not-guide-jasmonate-mediated-defenses-in-arabidopsis-thaliana
#13
Monika Heyer, Sandra S Scholz, Dagmar Voigt, Michael Reichelt, Didier Aldon, Ralf Oelmüller, Wilhelm Boland, Axel Mithöfer
Calcium is an important second messenger in plants that is released into the cytosol early after recognition of various environmental stimuli. Decoding of such calcium signals by calcium sensors is the key for the plant to react appropriately to each stimulus. Several members of Calmodulin-like proteins (CMLs) act as calcium sensors and some are known to mediate both abiotic and biotic stress responses. Here, we study the role of the Arabidopsis thaliana CML9 in different stress responses. CML9 was reported earlier as defense regulator against Pseudomonas syringae...
2018: PloS One
https://www.readbyqxmd.com/read/29767731/development-and-reproduction-of-neoseiulus-californicus-acari-phytoseiidae-and-tetranychus-urticae-acari-tetranychidae-under-simulated-natural-temperature
#14
Noureldin Abuelfadl Ghazy, Takeshi Suzuki, Hiroshi Amano
Although laboratory observations provide basic knowledge of the development and reproduction of predacious and phytophagous mites, little is known of their behavior under natural conditions. Using a closed system designed to simulate natural climate patterns, we investigated the development and reproduction of the predatory mite Neoseiulus californicus (McGregor) (Acari: Phytoseiidae) and the pest mite Tetranychus urticae Koch (Acari: Tetranychidae) at air temperatures typical of June to October at three latitudes (Aomori, Tottori, and Naha) in Japan...
May 14, 2018: Environmental Entomology
https://www.readbyqxmd.com/read/29765692/the-cascading-pathogenic-consequences-of-sarcoptes-scabiei-infection-that-manifest-in-host-disease
#15
Alynn M Martin, Tamieka A Fraser, John A Lesku, Kellie Simpson, Georgia L Roberts, Jillian Garvey, Adam Polkinghorne, Christopher P Burridge, Scott Carver
Sarcoptic mange, caused by the parasitic mite Sarcoptes scabiei , causes a substantive burden of disease to humans, domestic animals and wildlife, globally. There are many effects of S. scabiei infection, culminating in the disease which hosts suffer. However, major knowledge gaps remain on the pathogenic impacts of this infection. Here, we focus on the bare-nosed wombat host ( Vombatus ursinus ) to investigate the effects of mange on: (i) host heat loss and thermoregulation, (ii) field metabolic rates, (iii) foraging and resting behaviour across full circadian cycles, and (iv) fatty acid composition in host adipose, bone marrow, brain and muscle tissues...
April 2018: Royal Society Open Science
https://www.readbyqxmd.com/read/29765663/categorizing-experience-based-foraging-plasticity-in-mites-age-dependency-primacy-effects-and-memory-persistence
#16
Peter Schausberger, Undarmaa Davaasambuu, Stéphanie Saussure, Inga C Christiansen
Behavioural plasticity can be categorized into activational (also termed contextual) and developmental plasticity. Activational plasticity allows immediate contextual behavioural changes, whereas developmental plasticity is characterized by time-lagged changes based on memory of previous experiences (learning). Behavioural plasticity tends to decline with age but whether this holds true for both plasticity categories and the effects of first-in-life experiences is poorly understood. We tackled this issue by assessing the foraging plasticity of plant-inhabiting predatory mites, Amblyseius swirskii , on thrips and spider mites following age-dependent prey experience, i...
April 2018: Royal Society Open Science
https://www.readbyqxmd.com/read/29765106/the-mitochondrial-genome-of-the-oribatid-mite-paraleius-leontonychus-new-insights-into-trna-evolution-and-phylogenetic-relationships-in-acariform-mites
#17
Sylvia Schäffer, Stephan Koblmüller, Ingeborg Klymiuk, Gerhard G Thallinger
Bilaterian mitochondrial (mt) genomes are circular molecules that typically contain 37 genes. To date, only a single complete mitogenome sequence is available for the species-rich sarcoptiform mite order Oribatida. We sequenced the mitogenome of Paraleius leontonychus, another species of this suborder. It is 14,186 bp long and contains 35 genes, including only 20 tRNAs, lacking tRNA Gly and tRNA Tyr . Re-annotation of the mitogenome of Steganacarus magnus increased the number of mt tRNAs for this species to 12...
May 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29764663/tropilaelaps-mite-an-emerging-threat-to-european-honey-bee
#18
REVIEW
Panuwan Chantawannakul, Samuel Ramsey, Dennis vanEngelsdorp, Kitiphong Khongphinitbunjong, Patcharin Phokasem
The risk of transmission of honey bee parasites has increased substantially as a result of trade globalization and technical developments in transportation efficacy. Great concern over honey bee decline has accelerated research on newly emerging bee pests and parasites. These organisms are likely to emerge from Asia as it is the only region where all 10 honey bee species co-occur. Varroa destructor, an ectoparasitic mite, is a classic example of a pest that has shifted from A. cerana, a cavity nesting Asian honey bee to A...
April 2018: Current Opinion in Insect Science
https://www.readbyqxmd.com/read/29764657/does-host-plant-adaptation-lead-to-pesticide-resistance-in-generalist-herbivores
#19
REVIEW
Wannes Dermauw, Adam Pym, Chris Bass, Thomas Van Leeuwen, René Feyereisen
Most herbivorous arthropods feed on one or a few closely related plant species; however, certain insect and mite species have a greatly expanded host range. Several of these generalists also show a remarkable propensity to evolve resistance to chemical pesticides. In this review, we ask if the evolution of mechanisms to tolerate the diversity of plant secondary metabolites that generalist herbivores encounter, has pre-adapted them to resist synthetic pesticides. Critical examination of the evidence suggests that a generalist life-style per se is not a predictor of rapid resistance evolution to pesticides...
April 2018: Current Opinion in Insect Science
https://www.readbyqxmd.com/read/29764652/genetics-and-physiology-of-varroa-mites
#20
REVIEW
Jay D Evans, Steven C Cook
Varroa destructor is the primary biological threat to domesticated honey bee colonies in much of the world, impacting host fitness both directly and by transmitting RNA viruses. Genomic, proteomic, and functional-genetic resources provide a framework for Varroa biology. When coupled with physiological analyses of development, host finding, and reproduction, these resources reveal general traits of arthropods and offer new strategies for mite control. Efforts to develop novel controls are focused on efficacy, efficient delivery, and the avoidance of both host impacts and the swift evolution of resistance by mites...
April 2018: Current Opinion in Insect Science
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