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https://www.readbyqxmd.com/read/29677491/the-allergen-der-p3-from-house-dust-mite-stimulates-store-operated-ca-2-channels-and-mast-cell-migration-through-par4-receptors
#1
Yu-Ping Lin, Charmaine Nelson, Holger Kramer, Anant B Parekh
The house dust mite is the principal source of perennial aeroallergens in man. How these allergens activate innate and adaptive immunity is unclear, and therefore, there are no therapies targeting mite allergens. Here, we show that house dust mite extract activates store-operated Ca2+ channels, a common signaling module in numerous cell types in the lung. Activation of channel pore-forming Orai1 subunits by mite extract requires gating by STIM1 proteins. Although mite extract stimulates both protease-activated receptor type 2 (PAR2) and PAR4 receptors, Ca2+ influx is more tightly coupled to the PAR4 pathway...
April 19, 2018: Molecular Cell
https://www.readbyqxmd.com/read/29676818/new-insights-into-the-phenotypes-of-atopic-dermatitis-linked-with-allergies-and-asthma-in-children-an-overview
#2
F Amat, A Soria, P Tallon, M Bourgoin-Heck, N Lambert, A Deschildre, J Just
Atopic dermatitis (AD) is a complex disease with multiple causes and complex mechanistic pathways according to age of onset, severity of the illness, ethnic modifiers, response to therapy, and triggers. A group of difficult-to-manage patients characterized by early-onset AD and severe lifelong disease associated with allergic asthma and/or food allergy, has been identified. In this paper, we focus on these severe phenotypes, analyzing their links with other atopic comorbidities, and taking into account the results from recent cohort studies and meta-analyses...
April 20, 2018: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29676639/effects-of-controlled-diesel-exhaust-and-allergen-exposure-on-microrna-and-gene-expression-in-humans-modulation-of-lung-inflammatory-markers-associated-with-asthma
#3
Christopher F Rider, Masatsugu Yamamoto, Oliver P Günther, Amrit Singh, Jeremy A Hirota, Scott J Tebbutt, Christopher Carlsten
RATIONALE: Air pollution may contribute to the development of allergic diseases, including asthma, by enhancing immune responses to allergen, but the effects on microRNA, messenger RNA, and inflammatory markers remain unexplored. OBJECTIVES: To determine if acute exposure to diesel exhaust and/or allergen alters expression of microRNA and genes with effects on inflammatory markers associated with asthma. METHODS: Fifteen atopic participants were exposed in a crossover trial to inhaled filtered air or diesel exhaust (DE; 300 μg particulate matter with aerodynamic diameter less than or equal to 2...
April 2018: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29676534/consensus-based-european-guidelines-for-treatment-of-atopic-eczema-atopic-dermatitis-in-adults-and-children-part-i
#4
A Wollenberg, S Barbarot, T Bieber, S Christen-Zaech, M Deleuran, A Fink-Wagner, U Gieler, G Girolomoni, S Lau, A Muraro, M Czarnecka-Operacz, T Schäfer, P Schmid-Grendelmeier, D Simon, Z Szalai, J C Szepietowski, A Taïeb, A Torrelo, T Werfel, J Ring
This guideline was developed as a joint interdisciplinary European project, including physicians from all relevant disciplines as well as patients. It is a consensus-based guideline, taking available evidence from other guidelines, systematic reviews and published studies into account. This first part of the guideline covers methods, patient perspective, general measures and avoidance strategies, basic emollient treatment and bathing, dietary intervention, topical anti-inflammatory therapy, phototherapy and antipruritic therapy, whereas the second part covers antimicrobial therapy, systemic treatment, allergen-specific immunotherapy, complementary medicine, psychosomatic counselling and educational interventions...
May 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29676439/oral-and-sublingual-immunotherapy-for-egg-allergy
#5
REVIEW
Olga Romantsik, Maria Angela Tosca, Simona Zappettini, Maria Grazia Calevo
BACKGROUND: Clinical egg allergy is a common food allergy. Current management relies upon strict allergen avoidance. Oral immunotherapy might be an optional treatment, through desensitization to egg allergen. OBJECTIVES: To determine the efficacy and safety of oral and sublingual immunotherapy in children and adults with immunoglobulin E (IgE)-mediated egg allergy as compared to a placebo treatment or an avoidance strategy. SEARCH METHODS: We searched 13 databases for journal articles, conference proceedings, theses and trials registers using a combination of subject headings and text words (last search 31 March 2017)...
April 20, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29676075/chamber-and-field-studies-demonstrate-differential-amb-a-1-contents-in-common-ragweed-depending-on-co%C3%A2-levels
#6
Young Jin Choi, Hae Rin Oh, Jae Won Oh, Kyu Rang Kim, Mi Jin Kim, Baek Jo Kim, Won Gi Baek
Although atmospheric carbon dioxide (CO₂) has no apparent direct effect on human health, it does have direct effects on plants. The present study evaluated the influence of increased CO₂ levels on the concentration of allergens from common ragweed pollen by setting up a chamber study to model future air conditions and a field study to evaluate current air conditions. For the chamber study, we established 20 ragweed plants in an open-top chamber under different CO₂ levels (380-400, 500-520, 600-620, and 1,000-1,100 parts per million [ppm])...
May 2018: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/29676071/differences-in-genetic-variations-between-treatable-and-recalcitrant-atopic-dermatitis-in-korean
#7
Myungsoo Jun, Hye Young Wang, Solam Lee, Eunhee Choi, Hyeyoung Lee, Eung Ho Choi
PURPOSE: Variations in barrier- or immune response-related genes are closely related to the development of atopic dermatitis (AD). This study was designed to identify genetic variations and clinical features to predict 'recalcitrant AD.' METHODS: AD patients were classified as treatable and recalcitrant. Treatable AD patients showed satisfactory clinical improvement with basic and topical treatments. Recalcitrant AD patients used systemic immune-suppressants for over 4 weeks as they had not shown clinical improvement with basic and topical treatments...
May 2018: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/29676067/significance-of-skin-barrier-dysfunction-in-atopic-dermatitis
#8
REVIEW
Byung Eui Kim, Donald Y M Leung
The epidermis contains epithelial cells, immune cells, and microbes which provides a physical and functional barrier to the protection of human skin. It plays critical roles in preventing environmental allergen penetration into the human body and responsing to microbial pathogens. Atopic dermatitis (AD) is the most common, complex chronic inflammatory skin disease. Skin barrier dysfunction is the initial step in the development of AD. Multiple factors, including immune dysregulation, filaggrin mutations, deficiency of antimicrobial peptides, and skin dysbiosis contribute to skin barrier defects...
May 2018: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/29676066/allergen-specific-immunotherapies-for-food-allergy
#9
REVIEW
Elizabeth Feuille, Anna Nowak-Wegrzyn
With rising prevalence of food allergy (FA), allergen-specific immunotherapy (AIT) for FA has become an active area of research in recent years. In AIT, incrementally increasing doses of inciting allergen are given with the goal to increase tolerance, initially through desensitization, which relies on regular exposure to allergen. With prolonged therapy in some subjects, AIT may induce sustained unresponsiveness, in which tolerance is retained after a period of allergen avoidance. Methods of AIT currently under study in humans include oral, sublingual, epicutaneous, and subcutaneous delivery of modified allergenic protein, as well as via DNA-based vaccines encoding allergen with lysosomal-associated membrane protein I...
May 2018: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/29675958/detection-of-allergenic-additives-in-processed-meat-products
#10
REVIEW
Anita Spychaj, Edward Pospiech, Ewa Iwańska, Magdalena Montowska
At present, allergic response to food components is an increasing problem all over the world. Therefore it is important to protect people vulnerable to food allergens against accidental and unintended consumption of products containing allergic ingredients. The meat industry commonly uses various allergic additives in production of processed products, i.e. legumes (soy, peas, beans), milk and egg preparations, cereals containing gluten (wheat, rye, barley and oats), and spices (celery and mustard). These meat additives have specific technological properties which help to create a texture, flavour profile or affect the nutritional value, although some of them, such as soy, mustard, milk and egg white proteins can cause severe allergic reactions...
April 19, 2018: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29675865/allergen-immunotherapy-in-people-dogs-cats-and-horses-differences-similarities-and-research-needs
#11
R S Mueller, E Jensen-Jarolim, F Roth-Walter, E Marti, J Janda, A A Seida, D DeBoer
In human patients with seasonal allergic rhinoconjunctivitis sensitized to grass pollen, the first successful allergen immunotherapy (AIT) was reported in 1911. Today, immunotherapy is an accepted treatment for allergic asthma, allergic rhinitis and hypersensitivities to insect venom. AIT is also used for atopic dermatitis and recently for food allergy. Subcutaneous, epicutaneous, intralymphatic, oral and sublingual protocols of AIT exist. In animals, most data are available in dogs where subcutaneous AIT is an accepted treatment for atopic dermatitis...
April 19, 2018: Allergy
https://www.readbyqxmd.com/read/29673942/allergic-patients-with-and-without-allergen-specific-immunotherapy-mount-protective-immune-responses-to-tick-borne-encephalitis-vaccination-in-absence-of-enhanced-side-effects-or-propagation-of-their-th2-bias
#12
Erika Garner-Spitzer, Claudia Seidl-Friedrich, Ines Zwazl, Michael Hofer, Tamar Kinaciyan, Reinhart Jarisch, Karin Stiasny, Gerhard J Zlabinger, Michael Kundi, Ursula Wiedermann
BACKGROUND: Allergic diseases are caused by Th2-driven immune responses and their treatment with specific immunotherapy (SIT) leads to immunomodulation via IL10, TGF-ß and Th1/Tr1 shift. This phase IV, open-label clinical trial investigated whether allergies and SIT treatment influenced immune responses to routine vaccination. METHODS: We studied three groups: 49 allergic patients (allergic group), 21 allergic patients receiving maintenance doses of SIT (SIT group), and 49 non-allergic controls...
April 16, 2018: Vaccine
https://www.readbyqxmd.com/read/29673863/combining-2-de-immunoblots-and-mass-spectrometry-to-identify-putative-soybean-glycine-max-allergens
#13
Mei Lu, Yuan Jin, Ron Cerny, Barbara Ballmer-Weber, Richard E Goodman
Soybean is recognized as a commonly allergenic food, but the identity of important allergens is not well studied. Recently, some global regulatory agencies started requiring quantitative analysis of individual allergens, including unproven allergens, as part of the risk assessment for genetically engineered (GE) soybeans. We sought to identify soybean proteins that bind IgE from any of 10 individual soybean-sensitized subjects. Soybean IgE binding proteins were identified by 2-DE immunoblots using sera from four soy-allergic and plasma from six soy-sensitized human subjects...
April 16, 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29673741/cross-sectional-observational-study-exploring-clinical-risk-of-titanium-allergy-caused-by-dental-implants
#14
Maki Hosoki, Keisuke Nishigawa, Toyoko Tajima, Mayu Ueda, Yoshizo Matsuka
PURPOSE: Studies have reported cases of metal allergy caused by titanium-containing materials. We wished to clarify the relationship between titanium allergy and dental implants by describing patients who suffered allergic symptoms after they had received such implants. METHODS: A total of 270 patients who visited a Dental Metal Allergy Clinic at Tokushima University Hospital from April 2010 to March 2014 were the study cohort. Patch testing with 28 types of metal allergens (including four titanium allergens) was undertaken for patients...
April 16, 2018: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/29671851/an-automatic-integrated-microfluidic-system-for-allergy-microarray-chips
#15
Wen-Yen Huang, Shang-Ta Chou, Chia-Hui Chen, Shan-Ying Chou, Jia-Han Wu, Yu-Chen Chen, Gwo-Bin Lee
Billions of people suffer from allergies, though in many cases, the source allergen is unknown. If one knows which allergens to avoid, this would result in an improved quality of life. Since a rapid, high-throughput, automatic allergen detection method is of great need, an integrated system combining microfluidic techniques and microarray chips has been developed herein to automate the allergen detection process. The developed microfluidic system could automatically carry out the entire procedure such as reagent incubation, hybridization, transport, and washing without any intermediate step...
April 19, 2018: Analyst
https://www.readbyqxmd.com/read/29671091/prolonged-phonation-impairs-the-integrity-and-barrier-function-of-porcine-vocal-fold-epithelium-a-preliminary-study
#16
Chi Zhang, Kieran Paddock, Adriana Chou, Austin Scholp, Ting Gong, Jack J Jiang
PURPOSE: Voice abuse is known to be a common risk factor of voice disorders and prolonged; high-intensity phonation has been shown to damage the vocal fold epithelium. We aim to evaluate the effects of phonation on the integrity and barrier function of vocal fold epithelium using a porcine laryngeal model. METHODS: Ex vivo porcine larynges were phonated at low intensity or high intensity for 15, 30, or 60 min within 4 h after harvest. Vocal fold epithelium was visualized using transmission electron microscopy (TEM)...
April 18, 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29670037/expression-and-regulation-of-thymic-stromal-lymphopoietin-and-thymic-stromal-lymphopoietin-receptor-heterocomplex-in-the-innate-adaptive-immunity-of-pediatric-asthma
#17
REVIEW
Sheng-Chieh Lin, Fang-Yi Cheng, Jun-Jen Liu, Yi-Ling Ye
Asthma is a chronic inflammatory disease affecting the airway, and it is characterized by a wheezing breathing sound, variable airflow obstruction and the presence of inflammatory cells in the submucosa of the bronchi. Viral infection, pollutants and sensitivity to aeroallergens damage the epithelium from childhood, which causes asthma. The pathogenesis of asthma includes pathways of innate stimulation by environmental microbes and irritant pathogens. Damaged epithelial cells produce thymic stromal lymphopoietin (TSLP) and stimulate myeloid dendritic cell maturation through the thymic stromal lymphopoietin receptor (TSLPR) heterocomplex...
April 18, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29669669/prevalence-of-allergen-sensitization-detected-by-patch-tests
#18
Janice E Ma, Nan Zhang, Rokea A El-Azhary, Luz Fonacier, James A Yiannias
BACKGROUND: Existing literature on the prevalence of positive reactions to allergens is largely derived from dermatologists who practice at large academic centers. Data from other providers, including allergists who practice in various other settings, is important to assess a more representative and accurate prevalence of contact allergy. OBJECTIVE: To determine the prevalence of contact allergy among individuals with at least one positive patch test result by comparing data for positive patch test reaction rates of common contact allergens from 3 groups based in different practice settings, 2 of which are academic...
May 1, 2018: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/29669664/evaluating-children-with-suspected-allergic-reactions-to-vaccines-for-infectious-diseases
#19
Fabrizio Franceschini, Paolo Bottau, Silvia Caimmi, Fabio Cardinale, Giuseppe Crisafulli, Lucia Liotti, Guido Pellegrini, Diego Peroni, Francesca Saretta, Carla Mastrorilli, Carlo Caffarelli
BACKGROUND: Vaccines often contain potentially allergenic material in addition to pathogen-specific immunogens that may induce allergic reactions. Parents and physicians often suspect that adverse reactions to vaccines are allergic in etiology. The concern that some of the substances contained in vaccines may trigger an anaphylactic reaction may lead to a low vaccination adherence with emergence of infectious disease epidemics. OBJECTIVE: To provide practical suggestions for managing children suspected to have an allergic reaction to a vaccine...
May 1, 2018: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/29669337/search-for-a-novel-allergen-in-hen-s-egg-allergy-using-an-ige-immunoblotting-assay
#20
Kazuyuki Sogawa, Yuria Takahashi, Yui Shibata, Mamoru Satoh, Yoshio Kodera, Fumio Nomura, Toshio Tanaka, Hironori Sato, Fumiya Yamaide, Taiji Nakano, Kazuhiko Iwahashi, Yoshiko Sugita-Konishi, Akinori Shimada, Naoki Shimojo
BACKGROUND: Food allergy is a serious health issue affecting roughly 4% of children, with a substantial effect on quality of life. Chicken egg allergy is frequently observed in infants. Therefore, some of them have to exclude hen's eggs from their daily diet to avoid allergenic symptoms. Hen's egg is composed of 2 soluble parts; one is egg white, which has been characterized as the major source of allergenicity, while the other is egg yolk, which is estimated as a miner source. Only 2 allergens from egg yolk, α-livetin (Gal d 5) and YGP42 (Gal d 6), have been described to date...
April 18, 2018: International Archives of Allergy and Immunology
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