keyword
MENU ▼
Read by QxMD icon Read
search

Mites

keyword
https://www.readbyqxmd.com/read/29345934/zein-nanoparticles-as-eco-friendly-carrier-systems-for-botanical-repellents-aiming-sustainable-agriculture
#1
Jhones Luiz Oliveira, Estefania Vangelie Ramos Campos, Anderson do Espirito Santo Pereira, Tatiane Pasquoto, Renata Lima, Renato Grillo, Daniel Junior de Andrade, Fabiano Aparecido Dos Santos, Leonardo F Fraceto
Botanical repellents represent one of the main ways of reducing the use of synthetic pesticides and the contamination of soil and hydric resources. However, the poor stability and rapid degradation of these compounds in the environment hinders their effective application in the field. Zein nanoparticles can be used as eco-friendly carrier systems to protect these substances against premature degradation, provide desirable release characteristics, and reduce toxicity in the environment and to humans. In this study, we describe the preparation and characterization of zein nanoparticles loaded with the main constituents of the essential oil of citronella (geraniol and R-citronellal)...
January 18, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29343807/house-dust-mite-induced-allergic-airway-disease-is-attenuated-in-cd11ccreil-4r%C3%AE-l%C3%A2-x-mice
#2
Natalie Eva Nieuwenhuizen, Frank Kirstein, Jennifer Claire Hoving, Frank Brombacher
The precise mechanisms leading to development of T helper type (Th)2-driven allergic responses are unknown. We aimed to determine how IL-4 receptor alpha (IL-4Rα) signaling on CD11c+ cells influences allergen-induced Th2 responses in mice. CD11ccreIL-4Rα-/l°x mice, deficient in IL-4Rα on dendritic cells and alveolar macrophages, were compared to IL-4Rα-/l°x littermate controls in models of allergic airway disease induced by OVA/alum, OVA alone or house dust mite. Cytokine responses, eosinophil and neutrophil infiltration into the lungs, airway hyperreactivity and mucus hypersecretion were evaluated after allergen challenge...
January 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29343787/author-correction-comparison-of-bacterial-microbiota-of-the-predatory-mite-neoseiulus-cucumeris-acari-phytoseiidae-and-its-factitious-prey-tyrophagus-putrescentiae-acari-acaridae
#3
Apostolos Pekas, Eric Palevsky, Jason C Sumner, M Alejandra Perotti, Marta Nesvorna, Jan Hubert
A correction to this article has been published and is linked from the HTML version of this paper. The error has been fixed in the paper.
January 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29343554/biased-generation-and-in-situ-activation-of-lung-tissue-resident-memory-cd4-t-cells-in-the-pathogenesis-of-allergic-asthma
#4
Damian L Turner, Monica Goldklang, Filip Cvetkovski, Daniel Paik, Jordis Trischler, Josselyn Barahona, Minwei Cao, Ronak Dave, Nicole Tanna, Jeanine M D'Armiento, Donna L Farber
Asthma is a chronic inflammatory disease mediated by allergen-specific CD4 T cells that promote lung inflammation through recruitment of cellular effectors into the lung. A subset of lung T cells can persist as tissue-resident memory T cells (TRMs) following infection and allergen induction, although the generation and role of TRM in asthma persistence and pathogenesis remain unclear. In this study, we used a mouse model of chronic exposure to intranasal house dust mite (HDM) extract to dissect how lung TRMs are generated and function in the persistence and pathogenesis of allergic airway disease...
January 17, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29339745/genomic-and-transcriptomic-analysis-of-the-asian-honeybee-apis-cerana-provides-novel-insights-into-honeybee-biology
#5
Qingyun Diao, Liangxian Sun, Huajun Zheng, Zhijiang Zeng, Shengyue Wang, Shufa Xu, Huoqing Zheng, Yanping Chen, Yuanyuan Shi, Yuezhu Wang, Fei Meng, Qingliang Sang, Lianfei Cao, Fang Liu, Yongqiang Zhu, Wenfeng Li, Zhiguo Li, Congjie Dai, Minjun Yang, Shenglu Chen, Runsheng Chen, Shaowu Zhang, Jay D Evans, Qiang Huang, Jie Liu, Fuliang Hu, Songkun Su, Jie Wu
The Asian honeybee Apis cerana is one of two bee species that have been commercially kept with immense economic value. Here we present the analysis of genomic sequence and transcriptomic exploration for A. cerana as well as the comparative genomic analysis of the Asian honeybee and the European honeybee A. mellifera. The genome and RNA-seq data yield new insights into the behavioral and physiological resistance to the parasitic mite Varroa the evolution of antimicrobial peptides, and the genetic basis for labor division in A...
January 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29339444/light-hvem-signaling-in-keratinocytes-controls-development-of-dermatitis
#6
Rana Herro, Jr-Wen Shui, Sonja Zahner, Daniel Sidler, Yuko Kawakami, Toshiaki Kawakami, Koji Tamada, Mitchell Kronenberg, Michael Croft
Dermatitis is often associated with an allergic reaction characterized by excessive type 2 responses leading to epidermal acanthosis, hyperkeratosis, and dermal inflammation. Although factors like IL-4, IL-13, and thymic stromal lymphopoietin (TSLP) are thought to be instrumental for the development of this type of skin disorder, other cytokines may be critical. Here, we show that the tumor necrosis factor (TNF) superfamily protein LIGHT (homologous to lymphotoxin, exhibits inducible expression, and competes with HSV glycoprotein D for binding to HVEM, a receptor expressed on T lymphocytes) is required for experimental atopic dermatitis, and LIGHT directly controls keratinocyte hyperplasia, and production of periostin, a matricellular protein that contributes to the clinical features of atopic dermatitis as well as other skin diseases such as scleroderma...
January 16, 2018: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/29338798/high-diversity-and-low-genetic-structure-of-feather-mites-associated-with-a-phenotypically-variable-bird-host
#7
Sofía Fernández-González, Antón Pérez-Rodríguez, Heather C Proctor, Iván De la Hera, Javier Pérez-Tris
Obligate symbionts may be genetically structured among host individuals and among phenotypically distinct host populations. Such processes may in turn determine within-host genetic diversity of symbionts, which is relevant for understanding symbiont population dynamics. We analysed the population genetic structure of two species of feather mites (Proctophyllodes sylviae and Trouessartia bifurcata) in migratory and resident blackcaps Sylvia atricapilla that winter sympatrically. Resident and migratory hosts may provide mites with habitats of different qualities, what might promote specialization of mite populations...
January 17, 2018: Parasitology
https://www.readbyqxmd.com/read/29337391/time-dependent-distinct-roles-of-toll-like-receptor-4-in-a-house-dust-mite-induced-asthma-mouse-model
#8
Takashi Ishii, Yuichi Niikura, Keigo Kurata, Masashi Muroi, Ken-Ichi Tanamoto, Takahide Nagase, Masahiro Sakaguchi, Naomi Yamashita
House dust mites (HDMs) are a common source of allergens that trigger both allergen-specific and innate immune responses in humans. Here we examined the effect of allergen concentration and the involvement of Toll-like receptor 4 (TLR4) in the process of sensitization to house dust mite allergens in an HDM-extract-induced asthma mouse model. Intranasal administration of HDM extract induced an immunoglobulin E response and eosinophilic inflammation in a dose-dependent manner from 2.5 to 30 μg/dose. In TLR4-knockout mice, the infiltration of eosinophils and neutrophils into the lung was decreased compared with that in wild-type mice in the early phase of inflammation (total of three doses)...
January 16, 2018: Scandinavian Journal of Immunology
https://www.readbyqxmd.com/read/29337345/sputum-cytology-during-late-phase-responses-to-inhalation-challenge-with-different-allergens
#9
Joana A Revez, Kieran J Killian, Paul M O'Byrne, Louis-Philippe Boulet, John W Upham, Gail M Gauvreau, Manuel A R Ferreira
BACKGROUND: In mouse models of allergic asthma, exposure to different allergens can trigger distinct inflammatory subtypes in the airways. We investigated if this observation extends to humans. METHODS: We compared the frequency of sputum inflammatory subtypes between mild allergic asthma subjects (n=129) exposed to different allergens in inhalation challenge tests. These tests were performed using a standardized protocol as part of clinical trials of experimental treatments for asthma, prior to drug randomization...
January 16, 2018: Allergy
https://www.readbyqxmd.com/read/29336285/optimal-cutoff-values-of-allergen-specific-immunoglobulin-e-to-house-dust-mites-and-animal-dander-based-on-skin-prick-test-results-analysis-in-16-209-patients-with-allergic-rhinitis
#10
Sang Duk Hong, Gwanghui Ryu, Min Young Seo, Jong In Jeong, Hyo Yeol Kim, Seung-Kyu Chung, Hun-Jong Dhong
BACKGROUND: The most common tests for allergen sensitization in patients with allergic rhinitis are the skin-prick test (SPT) and an in vitro test to detect serum specific immunoglobulin E (sIgE). However, in vitro allergen test results were interpreted dichotomically as positive or negative at a threshold of 0.35 kU/L of sIgE, regardless of the patient characteristics or antigen types. OBJECTIVE: The purpose of this study was to determine the cutoff value for sIgE in house-dust mites and animal dander, and to analyze differences in cutoff value according to age and gender...
January 25, 2018: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/29335029/estimating-the-proportion-of-clinically-diagnosed-infectious-and-non-infectious-animal-diseases-in-ganta-afeshum-woreda-eastern-tigray-zone-ethiopia
#11
Mebrahtu Tedla, Mebrahtu Gebreselassie
OBJECTIVE: This study was performed with the objective of identifying the proportion of emerging and endemic livestock diseases using cross sectional survey. RESULT: A total of 285 clinically diseased animals were presented to a veterinary clinic and diagnosed tentatively based on history, clinical sign, and simple laboratory diagnostics and from the study, actinomycosis (15.83%), mastitis (15%), tick infestation (10%), respiratory diseases (9.16%) and gastro intestinal parasitism (9...
January 15, 2018: BMC Research Notes
https://www.readbyqxmd.com/read/29331618/efficacy-and-safety-of-sublingual-immunotherapy-with-dermatophagoides-farinae-drops-in-pre-school-and-school-age-children-with-allergic-rhinitis
#12
L-X Tang, X-J Yang, P-P Wang, W-T Ge, J Zhang, Y-L Guo, J Lu, J Tai, Y-M Zhang, X Ni
BACKGROUND: The safety and efficacy of sublingual immunotherapy (SLIT) have been confirmed by many studies. However, in China, the research on efficacy and safety in young and older children with allergic rhinitis (AR) is still rare. OBJECTIVE: The aim of this retrospective study is to evaluate the efficacy and safety of SLIT with Dermatophagoides farinae drops in pre-school and school-age children with AR. METHODS: A total of 282 subjects aged 2-13 years with AR received a two-year course of sublingual immunotherapy along with pharmacotherapy...
January 10, 2018: Allergologia et Immunopathologia
https://www.readbyqxmd.com/read/29330449/lithium-chloride-effectively-kills-the-honey-bee-parasite-varroa-destructor-by-a-systemic-mode-of-action
#13
Bettina Ziegelmann, Elisabeth Abele, Stefan Hannus, Michaela Beitzinger, Stefan Berg, Peter Rosenkranz
Honey bees are increasingly important in the pollination of crops and wild plants. Recent reports of the weakening and periodical high losses of managed honey bee colonies have alarmed beekeeper, farmers and scientists. Infestations with the ectoparasitic mite Varroa destructor in combination with its associated viruses have been identified as a crucial driver of these health problems. Although yearly treatments are required to prevent collapses of honey bee colonies, the number of effective acaricides is small and no new active compounds have been registered in the past 25 years...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29330177/incidence-of-facultative-bacterial-endosymbionts-in-spider-mites-associated-with-local-environment-and-host-plant
#14
Yu-Xi Zhu, Yue-Ling Song, Yan-Kai Zhang, Ary A Hoffmann, Jin-Cheng Zhou, Jing-Tao Sun, Xiao-Yue Hong
Spider mites are frequently associated with multiple endosymbionts whose infection patterns often exhibit spatial and temporal variation. However, the association between endosymbiont prevalence and environmental factors remains unclear. Here, we surveyed endosymbionts in natural populations of the spider mite, Tetranychus truncatus, in China, screening 935 spider mites from 21 localities and 12 host plant species. Three facultative endosymbiont lineages, Wolbachia, Cardinium, and Spiroplasma, were detected at different infection frequencies (52...
January 12, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29329322/methylene-tetrahydrofolate-reductase-contributes-to-allergic-airway-disease
#15
Kenneth R Eyring, Brent S Pedersen, Kenneth N Maclean, Sally P Stabler, Ivana V Yang, David A Schwartz
RATIONALE: Environmental exposures strongly influence the development and progression of asthma. We have previously demonstrated that mice exposed to a diet enriched with methyl donors during vulnerable periods of fetal development can enhance the heritable risk of allergic airway disease through epigenetic changes. There is conflicting evidence on the role of folate (one of the primary methyl donors) in modifying allergic airway disease. OBJECTIVES: We hypothesized that blocking folate metabolism through the loss of methylene-tetrahydrofolate reductase (Mthfr) activity would reduce the allergic airway disease phenotype through epigenetic mechanisms...
2018: PloS One
https://www.readbyqxmd.com/read/29329020/a-novel-mouse-model-of-atopic-dermatitis-that-is-t-helper-2-th2-polarized-by-an-epicutaneous-allergen
#16
Hyun Jung Park, Wahn Soo Choi, Won Young Lee, Youngsok Choi, Chankyu Park, Jin Hoi Kim, Kwon Ho Hong, Hyuk Song
The pathogenesis of atopic dermatitis (AD) involves T helper 2 (Th2) cells, and effective therapies remain elusive due to the paucity of animal models. We aimed to develop a mouse model of an immune system aberration caused by allergen. Experiments were conducted in two phases. In experiment 1, BALB/c mice were sensitized with one of four chemical allergens - toluene diisocyanate (TDI), hexamethylene diisocyanate (HDI), trimellitic anhydride (TMA), or 2,4-dinitrochlorobenzene (DNCB) - for 3 weeks. Based on results of experiment 1, immunological features were compared between TMA-sensitized BALB/c mice and NC/Nga mice, after exposure to mite extracts, harmful chemicals and detergents in experiment 2...
December 29, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/29324085/hyperparasitism-of-an-avian-ectoparasitic-hippoboscid-fly-ornithomya-anchineuria-by-the-mite-myialges-cf-borealis-in-alberta-canada
#17
Cameron P Goater, Jayden Dyck, Heather Proctor, Kevin Floate
Hippoboscid flies (Diptera: Hippoboscidae) include species that are ectoparasites of birds in the Northern Hemisphere, but little is known regarding their taxonomy, parasites, avian host associations, or geographical distribution in North America. In late August of 2013 and 2014, we collected hippoboscid flies from live birds trapped in mist nets as part of a banding study in Cypress Hills Interprovincial Park in southeastern Alberta, Canada. A total of 113 birds comprising 9 species was examined in 2013. Of these, 18 individuals were infested with 1-3 Ornithomya anchineuria Speiser (n = 22 flies; prevalence = 15...
January 11, 2018: Journal of Parasitology
https://www.readbyqxmd.com/read/29324037/health-hazards-associated-with-arthropod-infestation-of-stored-products
#18
Jan Hubert, Vaclav Stejskal, Christos G Athanassiou, James E Throne
Insects and mites are common inhabitants and accidental invaders of food, including durable commodities, and their presence can have both direct and indirect effects on human health. The most common direct effect is contamination of food with arthropod fragments and related contaminants, which may be allergenic or even carcinogenic. The most important indirect effect is that their presence can change the storage microenvironment, making durable products suitable for the rapid development of fungi and other microorganisms...
January 7, 2018: Annual Review of Entomology
https://www.readbyqxmd.com/read/29323160/glutathione-s-transferase-gst-of-american-cockroach-periplaneta-americana-classes-isoforms-and-allergenicity
#19
Nitat Sookrung, Onrapak Reamtong, Rojana Poolphol, Nitaya Indrawattana, Watee Seesuay, Nawannaporn Saelim, Pongsakorn Tantilipikorn, Chaweewan Bunnag, Wanpen Chaicumpa, Anchalee Tungtrongchitr
Insect glutathione S-transferases (GSTs) play important roles in insecticide/drug resistance and stress response. Medically, GSTs of house dust mites (Dermatophagoides pteronyssinus and Blomia tropicalis) and German cockroach (Blattella germanica) are human allergens. In this study, classes, isoforms and B-cell and allergenic epitopes of GST of American cockroach, Periplaneta americana, the predominant species in the tropics and subtropics were investigated for the first time. Enzymatically active native and recombinant P...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29319884/similar-localization-of-conformational-ige-epitopes-on-the-house-dust-mite-allergens-der-p-5-and-der-p-21-despite-limited-ige-cross-reactivity
#20
M Curin, T Garmatiuk, Y Resch-Marat, K W Chen, G Hofer, K Fauland, W Keller, W Hemmer, S Vrtala, M Focke-Tejkl, R Valenta
BACKGROUND: Due to high IgE recognition frequency and high allergenic activity, Der p 5 and Der p 21 are clinically important house dust mite (HDM) allergens. The objective of this study was to characterise the immunodominant IgE epitopes of Der p 5 and Der p 21 responsible for their high allergenic activity. METHODS: A panel of 12 overlapping peptides spanning the Der p 5 and Der p 21 sequence were synthesized to search for sequential IgE epitopes by direct testing for allergic patients ' IgE reactivity...
January 10, 2018: Allergy
keyword
keyword
12396
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"