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https://www.readbyqxmd.com/read/28346234/outstanding-animal-studies-in-allergy-i-from-asthma-to-food-allergy-and-anaphylaxis
#1
Erika Jensen-Jarolim, Isabella Pali-Schöll, Franziska Roth-Walter
PURPOSE OF REVIEW: Animal models published within the past 18 months on asthma, food allergy and anaphylaxis, all conditions of rising public health concern, were reviewed. RECENT FINDINGS: While domestic animals spontaneously develop asthma, food allergy and anaphylaxis, in animal models, divergent sensitization and challenge routes, dosages, intervals and antigens are used to induce asthmatic, food allergic or anaphylactic phenotypes. This must be considered in the interpretation of results...
March 24, 2017: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28345048/kin-selection-promotes-female-productivity-and-cooperation-between-the-sexes
#2
Aleksandra Łukasiewicz, Agnieszka Szubert-Kruszyńska, Jacek Radwan
Hamilton's theory of kin selection explains the evolution of costly traits that benefit other individuals by highlighting the fact that passing genes to offspring is not the only way of increasing the representation of those genes in subsequent generations: Genes are also shared with other classes of relatives. Consequently, any heritable trait that affects fitness of relatives should respond to kin selection. We tested this core prediction of kin selection theory by letting bulb mites (Rhizoglyphus robini) evolve in populations structured into groups of relatives or nonrelatives during the reproductive phase of the life cycle...
March 2017: Science Advances
https://www.readbyqxmd.com/read/28343320/allergic-airway-inflammation-induces-migration-of-mast-cell-populations-into-the-mouse-airway
#3
David Schmit, Duc Dung Le, Sebastian Heck, Markus Bischoff, Thomas Tschernig, Christian Herr, Christoph Beisswenger, Peter Kobelt, Phillipp Moritz Lepper, Kian Fan Chung, Robert Bals, Quoc Thai Dinh
Mast cells (MCs) and airway nerves play an important role in allergic asthma. However, little is known about the MCs and their interaction with airway nerves during allergic airway inflammation. This study aims to investigate the distribution and proliferation of MC populations in different lung compartments, along with the association of mast cells with nerve endings, using a house dust mite (HDM) model for allergic airway inflammation. BALB/c mice were exposed to HDM extract intranasally (25 μg/50 μl) for 5 consecutive days a week over 7 weeks...
March 25, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28342673/therapeutic-use-of-bacillus-thuringiensis-in-the-treatment-of-psoroptic-mange-in-naturally-infested-new-zealand-rabbits
#4
Emmanuel Dunstand-Guzmán, Claudia Hallal-Calleros, Jorge Morales-Montor, Víctor Manuel Hernández-Velázquez, Juan José Zárate-Ramos, Kurt L Hoffman, Guadalupe Peña-Chora, Fernando Iván Flores-Pérez
Bacillus thuringiensis is a bacteria known for its bioinsecticidal toxins and it has been proposed as an alternative in the treatment of several parasites that infect domestic animals (helminths, ticks, mites). In this work, we evaluated the clinical efficiency of the Bacillus thuringiensis GP532 strain in the treatment of six rabbits naturally infested with the P. cuniculi mite. GP532 extract (10mg/ml) was applied by aspersion in both pinna, with a second application after seven days, and the therapeutic effect was measured in both qualitative and quantitative manner...
March 9, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28340275/mini-tomato-genotypes-resistant-to-the-silverleaf-whitefly-and-to-two-spotted-spider-mites
#5
G M Maciel, R S Almeida, J P R da Rocha, V Andaló, G R Marquez, N C Santos, R R Finzi
The mini tomato production has expanded, becoming an amazing alternative for enterprise. Despite all commercial potential, the cultivation has the occurrence of pests as main obstacle during the crop development. Nowadays, there are no researches that aimed obtaining genotypes with high acylsugar content, capable of providing a broad-spectrum resistance to pests. This study aimed the selection of mini tomato genotypes, with high acylsugar content, and checking the resistance level to the silverleaf whitefly [Bemisia tabaci (Gennadius)] and to the two-spotted spider mites (Tetranychus urticae Koch)...
March 22, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28337632/comparative-toxicity-of-imidacloprid-and-thiacloprid-to-different-species-of-soil-invertebrates
#6
Cláudia de Lima E Silva, Nicola Brennan, Jitske M Brouwer, Daniël Commandeur, Rudo A Verweij, Cornelis A M van Gestel
Neonicotinoid insecticides have come under increasing scrutiny for their impact on non-target organisms, especially pollinators. The current scientific literature is mainly focused on the impact of these insecticides on pollinators and some aquatic insects, leaving a knowledge gap concerning soil invertebrates. This study aimed at filling this gap, by determining the toxicity of imidacloprid and thiacloprid to five species of soil invertebrates: earthworms (Eisenia andrei), enchytraeids (Enchytraeus crypticus), Collembola (Folsomia candida), oribatid mites (Oppia nitens) and isopods (Porcellio scaber)...
March 23, 2017: Ecotoxicology
https://www.readbyqxmd.com/read/28334400/a-bio-economic-case-study-of-canadian-honey-bee-hymenoptera-apidae-colonies-marker-assisted-selection-mas-in-queen-breeding-affects-beekeeper-profits
#7
Miriam Bixby, Kathy Baylis, Shelley E Hoover, Rob W Currie, Andony P Melathopoulos, Stephen F Pernal, Leonard J Foster, M Marta Guarna
Over the past decade in North America and Europe, winter losses of honey bee (Hymenoptera: Apidae) colonies have increased dramatically. Scientific consensus attributes these losses to multifactorial causes including altered parasite and pathogen profiles, lack of proper nutrition due to agricultural monocultures, exposure to pesticides, management, and weather. One method to reduce colony loss and increase productivity is through selective breeding of queens to produce disease-, pathogen-, and mite-resistant stock...
March 16, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334279/population-growth-of-varroa-destructor-acari-varroidae-in-colonies-of-russian-and-unselected-honey-bee-hymenoptera-apidae-stocks-as-related-to-numbers-of-foragers-with-mites
#8
Gloria DeGrandi-Hoffman, Fabiana Ahumada, Robert Danka, Mona Chambers, Emily Watkins DeJong, Geoff Hidalgo
Varroa (Varroa destructor Anderson and Trueman) is an external parasite of honey bees (Apis mellifera L.) and a leading cause of colony losses worldwide. Varroa populations can be controlled with miticides, but mite-resistant stocks such as the Russian honey bee (RHB) also are available. Russian honey bee and other mite-resistant stocks limit Varroa population growth by affecting factors that contribute to mite reproduction. However, mite population growth is not entirely due to reproduction. Numbers of foragers with mites (FWM) entering and leaving hives also affect the growth of mite populations...
March 20, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334233/does-long-term-feeding-on-alternative-prey-affect-the-biological-performance-of-neoseiulus-barkeri-acari-phytoseiidae-on-the-target-spider-mites
#9
Ya-Ying Li, Guo-Hao Zhang, Chuan-Bei Tian, Ming-Xiu Liu, Yi-Qing Liu, Huai Liu, Jin-Jun Wang
The predatory mite Neoseiulus barkeri (Hughes) is a good biological control agent for many small sucking pests. We aimed to determine whether rearing long term on alternative prey versus target prey species affected the performance of N. barkeri. Therefore, we investigated the prey preference, life tables, and population parameters of N. barkeri between alternative prey Tyrophagus putrescentiae (Schrank) and three species of spider mites, Tetranychus urticae Koch, Panonychus citri (McGregor), and Eotetranychus kankitus Ehara...
March 3, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334185/ecology-life-history-and-management-of-tropilaelaps-mites
#10
Lilia I de Guzman, Geoffrey R Williams, Kitiphong Khongphinitbunjong, Panuwan Chantawannakul
Parasitic mites are the major threat to the Western honey bee, Apis mellifera L. For much of the world, Varroa destructor Anderson & Trueman single-handedly inflicts unsurmountable problems to A. mellifera beekeeping. However, A. mellifera in Asia is also faced with another genus of destructive parasitic mite, Tropilaelaps. The life history of these two parasitic mites is very similar, and both have the same food requirements (i.e., hemolymph of developing brood). Hence, parasitism by Tropilaelaps spp., especially Tropilaelaps mercedesae and Tropilaelaps clareae, also results in death of immature brood or wing deformities in infested adult bees...
March 15, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334133/population-dynamics-of-the-wheat-curl-mite-acari-eriophyidae-during-the-heading-stages-of-winter-wheat
#11
Anthony J McMechan, Gary L Hein
The wheat curl mite (Aceria tosichella Keifer) is the only known vector of three viruses in wheat-Wheat streak mosaic virus, Wheat mosaic virus, and Triticum mosaic virus. The economic impact of this disease complex is linked to the presence of suitable hosts prior to winter wheat maturing in early summer and the movement of wheat curl mite from wheat to oversummering hosts prior to wheat harvest. Previous research has documented the prevalence and density of mite populations on maturing wheat heads; however, these studies were limited to a few late stages of wheat...
February 19, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334066/effect-of-drive-row-ground-covers-on-hop-rosales-cannabaceae-yard-arthropod-pests-in-vermont-usa
#12
L Calderwood, J Cubins, D Vesty, H Darby
Alternatives to pesticides are necessary for the management of hop (Humulus lupulus L.) arthropod pests. The three major arthropod pests in northeastern US hop production include two-spotted spider mite, Tetranychus urticae Koch, hop aphid Phorodon humuli (Schrank), and potato leafhopper, Empoasca fabae Harris. This 3-yr study (2012-2014) in Vermont investigated the effect of flowering ground covers on arthropod pest abundance. Hop cultivars 'Nugget' and 'Cascade' were evaluated under a strip-split plot experimental design...
February 17, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28331347/environmental-triggers-and-avoidance-in-the-management-of-asthma
#13
REVIEW
Clarisse Gautier, Denis Charpin
Identifying asthma triggers forms the basis of environmental secondary prevention. These triggers may be allergenic or nonallergenic. Allergenic triggers include indoor allergens, such as house dust mites (HDMs), molds, pets, cockroaches, and rodents, and outdoor allergens, such as pollens and molds. Clinical observations provide support for the role of HDM exposure as a trigger, although avoidance studies provide conflicting results. Molds and their metabolic products are now considered to be triggers of asthma attacks...
2017: Journal of Asthma and Allergy
https://www.readbyqxmd.com/read/28329851/short-tslp-attenuates-toluene-diisocyanate-tdi-induced-airway-inflammation-and-inhibits-hmgb1-rage-and-long-tslp-expression
#14
Yanhong Wang, Yanqing Le, Wenqu Zhao, Yun Lin, Yue Wu, Changhui Yu, Jing Xiong, Fei Zou, Hangming Dong, Shaoxi Cai, Haijin Zhao
Short thymic stromal lymphopoietin (short TSLP), one of TSLP variants, exerts anti-inflammatory activities in endotoxin shock and colitis mouse models. Our latest work reported that short TSLP prevented house dust mite (HDM)-induced epithelial barrier disruption. Yet the role of short TSLP in toluene diisocyanate (TDI)-induced asthma is unknown. Male BALB/c mice were sensitized and challenged with TDI to generate a chemical-induced asthma model. Synthetic short TSLP peptides were given intranasally (i.n.) or intraperitoneally (i...
February 27, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28329621/facial-pigmentation-with-demodex-mite-a-mere-coincidence-or-an-association
#15
Betul Sereflican, Bengu Tuman, Cetin Boran, Nadir Goksugu, Ali Haydar Parlak, Mualla Polat
Demodex mites may induce inflammatory cutaneous reactions such as papulopustular rosacea and demodex folliculitis; both may lead to post inflammatory pigmentation. A 59-year-old man presented with an asymptomatic, hyperpigmented plaque on his face. Histological and clinical findings displayed Riehl-like facial pigmentation. Multiple demodex mites at the follicular infundibulum in the biopsy material were remarkable. There are limited publications about demodex-associated pigmentation. We report this case to point out that various hyperpigmentation disorders may occur simultaneously with demodex mites...
September 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28329574/a-rare-clinical-manifestation-of-spinulate-demodicosis
#16
Funda Tamer, Evren Sarifakioglu, Ozge Mine Orenay
Demodicosis is a chronic skin disease caused by Demodex mites such as Demodex folliculorum and Demodex brevis. Demodex mites live in pilosebaceous units and they are regarded as a part of the normal skin flora. Nevertheless, it has been suggested that the presence of five or more mites per cm² by the standardized skin surface biopsy technique could be considered as pathogenic.
November 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28327890/draft-genome-of-the-honey-bee-ectoparasitic-mite-tropilaelaps-mercedesae-is-shaped-by-the-parasitic-life-history
#17
Xiaofeng Dong, Stuart D Armstrong, Dong Xia, Benjamin L Makepeace, Alistair C Darby, Tatsuhiko Kadowaki
Background: The number of managed honey bee colonies has considerably decreased in many developed countries in recent years and ectoparasitic mites are considered as major threats to honey bee colonies and health. However, their general biology remains poorly understood. Results: We sequenced the genome of Tropilaelaps mercedesae , the prevalent ectoparasitic mite infesting honey bees in Asia and predicted 15,190 protein-coding genes which were well supported by the mite transcriptomes and proteomic data...
February 22, 2017: GigaScience
https://www.readbyqxmd.com/read/28326908/sublingual-immunotherapy-tablets-as-a-disease-modifying-add-on-treatment-option-to-pharmacotherapy-for-allergic-rhinitis-and-asthma
#18
Stephen Brunton, Harold S Nelson, David I Bernstein, Simon Lawton, Susan Lu, Hendrik Nolte
Allergic rhinitis (AR) with or without conjunctivitis (AR/C) is associated with a significant health and economic burden, and is often accompanied by asthma. Pharmacotherapies are the mainstay treatment options for AR and asthma, but guidelines also recommend allergy immunotherapy (AIT). Unlike pharmacotherapies, AIT has the ability to modify the underlying immunologic mechanisms of AR and asthma with the potential for long-term benefits after treatment is discontinued. Immunotherapy may also prevent progression of AR/C to asthma...
March 27, 2017: Postgraduate Medicine
https://www.readbyqxmd.com/read/28326906/a-practical-guide-to-the-sublingual-immunotherapy-tablet-adverse-event-profile-implications-for-clinical-practice
#19
David I Bernstein, Jose A Bardelas, Bodil Svanholm Fogh, Amarjot Kaur, Ziliang Li, Hendrik Nolte
OBJECTIVES: Treatment with allergy immunotherapy improves allergic rhinoconjunctivitis, but can also improve comorbidities associated with allergic rhinitis such as asthma. Sublingual immunotherapy (SLIT)-tablets are a convenient and efficacious method of allergy immunotherapy. They are self-administered after the first tablet has been provided under medical supervision. Therapy may elicit local reactions or, rarely, systemic allergic reactions. The objective of this report is to inform healthcare practitioners about the safety and tolerability profile of SLIT-tablets and use this information to provide practical guidance that may inform patients regarding potential adverse reactions and how to manage them...
March 22, 2017: Postgraduate Medicine
https://www.readbyqxmd.com/read/28326466/a-cost-minimisation-analysis-comparing-sublingual-immunotherapy-to-subcutaneous-immunotherapy-for-the-treatment-of-house-dust-mite-allergy-in-a-swedish-setting
#20
Åse Björstad, Lars-Olaf Cardell, Julie Hahn-Pedersen, Mikael Svärd
BACKGROUND AND OBJECTIVES: In Sweden, approximately 6% of children and 10% of adults suffer from house dust mite (HDM) allergy with symptoms of allergic rhinitis and allergic asthma. Treatment is aimed at reducing HDM exposure and to control the symptoms of allergic rhinitis and allergic asthma by symptom-relieving pharmacotherapy. This pharmacotherapy is often effective, but some patients remain inadequately controlled. For these patients, allergy immunotherapy (AIT, subcutaneous or sublingual) with repeated administration of HDM allergen should be considered...
March 22, 2017: Clinical Drug Investigation
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