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allergen cross-reactive

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https://www.readbyqxmd.com/read/28818076/extensive-protein-hydrolyzation-is-indispensable-to-prevent-ige-mediated-poultry-allergen-recognition-in-dogs-and-cats
#1
Thierry Olivry, Jennifer Bexley, Isabelle Mougeot
BACKGROUND: The central premise for the commercialization of diets with hydrolyzed ingredients is that the small-sized digested peptides would be unable to crosslink allergen-specific IgE at the surface of tissue mast cells and induce their degranulation. Evidence for the validity of this concept to diagnose food allergies in dogs and cats is limited, however. Our objectives were to study the recognition of standard and variably hydrolyzed poultry extracts by sera from dogs and cats with elevated chicken-specific serum IgE...
August 17, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28804907/allergic-contact-dermatitis-caused-by-isobornyl-acrylate-in-freestyle%C3%A2-libre-a-newly-introduced-glucose-sensor
#2
Anne Herman, Olivier Aerts, Marie Baeck, Magnus Bruze, Christophe De Block, An Goossens, Nils Hamnerius, Sara Huygens, Dominique Maiter, Dominique Tennstedt, Bernard Vandeleene, Martin Mowitz
BACKGROUND: Glucose sensors, such as FreeStyle® Libre, are innovative medical devices developed for diabetes patients as a replacement for classic glucose meters, ensuring continuous glucose monitoring without the disadvantage of regular skin finger pricks. OBJECTIVES: To report several cases of allergic contact dermatitis caused by FreeStyle® Libre, and to report on isobornyl acrylate as a culprit allergen. PATIENTS AND METHODS: Fifteen patients presented with allergic contact dermatitis caused by FreeStyle® Libre...
August 14, 2017: Contact Dermatitis
https://www.readbyqxmd.com/read/28801713/cross-reactivity-profiles-of-legumes-and-tree-nuts-using-the-xmap-%C3%A2-multiplex-food-allergen-detection-assay
#3
Chung Y Cho, Carolyn Oles, William Nowatzke, Kerry Oliver, Eric A E Garber
The homology between proteins in legumes and tree nuts makes it common for individuals with food allergies to be allergic to multiple legumes and tree nuts. This propensity for allergenic and antigenic cross-reactivity means that commonly employed commercial immunodiagnostic assays (e.g., dipsticks) for the detection of food allergens may not always accurately detect, identify, and quantitate legumes and tree nuts unless additional orthogonal analytical methods or secondary measures of analysis are employed...
August 12, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28800704/qualitative-and-quantitative-analysis-of-carbohydrate-modification-on-glycoproteins-from-seeds-of-ginkgo-biloba
#4
Ting Wang, Xiao-Chun Hu, Zhi-Peng Cai, Josef Voglmeir, Li Liu
Recent progress in the relationship between carbohydrate cross-reactive determinants (CCDs) and allergic response highlights the importance of carbohydrate moieties in the innate immune system. Previous research pointed out that the protein allergen in Ginkgo biloba seeds is glycosylated, and the oligosaccharides conjugated to these proteins might also contribute to the allergy. The aim of this study was to analyze carbohydrate moieties, especially N-linked glycans, of glycoproteins from Ginkgo seeds originating from different places for detailed structures, to enable further research on the role played by N-glycans in Ginkgo-caused allergy...
August 21, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28782634/a-new-allergen-family-involved-in-pollen-food-associated-syndrome-snakin-gibberellin-regulated-proteins
#5
Hélène Sénéchal, Jiří Šantrůček, Magdalena Melčová, Petr Svoboda, Jarmila Zídková, Denis Charpin, Laurence Guilloux, Youcef Shahali, Marie-Ange Selva, Rémy Couderc, Tomoyasu Aizawa, Pascal Poncet
At least two pollen food associated syndromes were described with cypress pollen allergy involving peach and citrus. Snakin/gibberellin regulated proteins are described herein to be the cross-reactive allergens between Cupressus sempervirens pollen and fruit/vegetables.
August 3, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28776709/allergic-contact-dermatitis-caused-by-dimethylthiocarbamylbenzothiazole-sulfide-dmtbs-in-canvas-shoes-in-search-of-the-culprit-allergen
#6
Marie L Schuttelaar, Joost M Meijer, Malin Engfeldt, Hilde Lapeere, An Goossens, Magnus Bruze, Christina Persson, Ola Bergendorff
BACKGROUND: During rubber vulcanization, new compounds can be formed. OBJECTIVES: To report a case of allergic shoe dermatitis in which the search for the allergen ultimately led to the identification of dimethylthiocarbamylbenzothiazole sulfide (DMTBS). METHODS: A female presented with eczema on her feet after wearing Sperry Top Sider® canvas sneakers. Patch testing was performed with the European baseline series, additional series, shoe materials, and extracts of shoe materials...
August 4, 2017: Contact Dermatitis
https://www.readbyqxmd.com/read/28760720/profilin-a-change-in-the-paradigm
#7
P Rodríguez Del Río, A Díaz-Perales, S Sánchez-García, C Escudero, M D Ibáñez, P Méndez-Brea, D Barber
Profilin is a protein present in all eukaryotic cells, and is responsible for the cross-reactivity between pollen, latex and plant foods. It has been classically acknowledged as a minor or nearly irrelevant allergen, although recent data are changing this conception. The objective of this manuscript is to comprehensively review the published data on the role of this ubiquitous allergen in pollen, latex and plant food allergy. The patterns of recognition of this minor allergen follow a north-south gradient, and although present in all pollens and vegetables, it is significantly associated with grass pollen and Cucurbitaceae fruits...
August 1, 2017: Journal of Investigational Allergology & Clinical Immunology
https://www.readbyqxmd.com/read/28759475/component-resolved-diagnostics-for-hymenoptera-venom-allergy
#8
Thilo Jakob, Ulrich Müller, Arthur Helbling, Edzard Spillner
PURPOSE OF REVIEW: Component-resolved diagnostics makes use of defined allergen molecules to analyse IgE-mediated sensitizations at a molecular level. Here, we review recent studies on the use of component-resolved diagnostics in the field of Hymenoptera venom allergy (HVA) and discuss its benefits and limitations. RECENT FINDINGS: Component resolution in HVA has moved from single molecules to panels of allergens. Detection of specific immunoglobulin E (sIgE) to marker and cross-reactive venom allergens has been reported to facilitate the discrimination between primary sensitization and cross-reactivity and thus, to provide a better rationale for prescribing venom immunotherapy (VIT), particularly in patients sensitized to both honeybee and vespid venom...
August 11, 2017: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28729676/proteomic-profiling-of-the-weed-feverfew-a-neglected-pollen-allergen-source
#9
Isabel Pablos, Stephanie Eichhorn, Peter Briza, Claudia Asam, Ulrike Gartner, Martin Wolf, Christof Ebner, Barbara Bohle, Naveen Arora, Stefan Vieths, Fatima Ferreira, Gabriele Gadermaier
Feverfew (Parthenium hysterophorus), an invasive weed from the Asteraceae family, has been reported as allergen source. Despite its relevance, knowledge of allergens is restricted to a partial sequence of a hydroxyproline-rich glycoprotein. We aimed to obtain the entire sequence for recombinant production and characterize feverfew pollen using proteomics and immunological assays. Par h 1, a defensin-proline fusion allergen was obtained by cDNA cloning and recombinantly produced in E. coli. Using two complementary proteomic strategies, a total of 258 proteins were identified in feverfew pollen among those 47 proteins belonging to allergenic families...
July 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28696503/dose-response-relationship-of-a-new-timothy-grass-pollen-allergoid-in-comparison-to-a-6-grass-pollen-allergoid
#10
O Pfaar, J M Hohlfeld, B Al-Kadah, B Hauswald, B Homey, N Hunzelmann, S Schliemann, P Velling, M Worm, L Klimek
BACKGROUND: Subcutaneous allergen immunotherapy with grass pollen allergoids has been proven to be effective and safe in the treatment of patients with allergic rhinoconjunctivitis. Based on the extensive cross-reactivity among Pooideae species, it has been suggested that grass pollen extracts could be prepared from a single species, rather than from a multiple species mixture. OBJECTIVE: To find the optimal dose of a Phleum pratense allergoid preparation and compare its efficacy and safety to a 6-grass pollen allergoid preparation...
July 11, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28692255/cloning-expression-and-the-effects-of-processing-on-sarcoplasmic-calcium-binding-protein-an-important-allergen-in-mud-crab
#11
Meng-Jun Hu, Guang-Yu Liu, Yang Yang, Tzu-Ming Pan, Yi-Xiang Liu, Le-Chang Sun, Min-Jie Cao, Guang-Ming Liu
Shellfish allergy is a prevalent, long-lasting disorder usually persisting throughout life. However, the allergen information is incomprehensive in crab. This study aimed to identify a novel allergen in crab, show its potential in diagnosis and reduce the allergenicity by food processing. A 21-kDa protein was purified from Scylla paramamosain and confirmed as sarcoplasmic calcium binding protein (SCP) by matrix-assisted laser desorption ionization-time-of-flight/time-of-flight mass spectrometry (MALDI-TOF/TOF-MS)...
August 2, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28685994/gibberellin-regulated-protein-in-japanese-apricot-is-an-allergen-cross-reactive-to-pru-p-7
#12
Naoko Inomata, Mami Miyakawa, Michiko Aihara
BACKGROUND: Gibberellin-regulated protein (GRP, also known as peamaclein) was recently identified as a new marker allergen related to systemic reactions in peach allergy; however, its role in other fruit allergies is unknown. OBJECTIVE: To investigate the allergenicity of Japanese apricot (JA) GRP and clarify the clinical characteristics of JA allergy patients with GRP sensitization. METHODS: Seven patients (two males, five females, mean age 28...
July 6, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28668236/mammalian-raw-materials-used-to-produce-allergen-extracts
#13
REVIEW
Enrique Fernández-Caldas, Bárbara Cases, David El-Qutob, Jose Fernando Cantillo
OBJECTIVE: To provide information about the complexity of skin-derived mammalian allergen extracts and recent advances made in their characterization and production. DATA SOURCES: Original and review articles (involving nonfood allergy to mammals) published in indexed journals were searched in the PubMed database. STUDY SELECTIONS: Studies were selected with the following criteria: novelty, species of the study, and date of publication. RESULTS: The information provided will help in the understanding and the selection of the appropriate allergen source materials for the preparation of extracts for the diagnosis and treatment of allergic respiratory diseases induced by the inhalation of skin-derived mammalian allergens...
July 2017: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/28662315/anaphylaxis-to-vanilla-ice-cream-a-near-fatal-cross-reactivity-phenomenon
#14
Uta Jappe, Skadi Kull, Annika Opitz, Peter Zabel
Although lupine is amongst the 17 foods that have to be declared it still has the features of a hidden allergen because those potentially allergic to lupine are not aware of the fact and, therefore, do not take adequate consequences, i.e. avoidance. Lupine occurs as additive in wheat flour, and is used as wheat and soy substitute. The significance of lupine is: a) its potential cross-reactivity with peanut and b) that the allergic reactions are mostly severe.(1) This article is protected by copyright. All rights reserved...
June 29, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28658559/innate-and-adaptive-type-2-immunity-in-lung-allergic-inflammation
#15
REVIEW
Masato Kubo
Allergic inflammation is a type 2 immune disorder classically characterized by high levels of immunoglobulin E (IgE) and the development of Th2 cells. Asthma is a pulmonary allergic inflammatory disease resulting in bronchial hyper-reactivity. Atopic asthma is defined by IgE antibody-mediated mast cell degranulation, while in non-atopic asthma there is no allergen-specific IgE and more involvement of innate immune cells, such as basophils, group 2 innate lymphoid cells (ILC2), and eosinophils. Recently, protease allergens were shown to cause asthmatic responses in the absence of Th2 cells, suggesting that an innate cell network (IL-33/TSLP-basophil-ILC2-IL-5/IL-13 axis) can facilitate the sensitization phase of type 2 inflammatory responses...
July 2017: Immunological Reviews
https://www.readbyqxmd.com/read/28654197/allergic-risks-of-consuming-edible-insects-a-systematic-review
#16
REVIEW
José Carlos Ribeiro, Luís Miguel Cunha, Bernardo Sousa-Pinto, João Fonseca
The expected future demand for food and animal-derived protein will require environment-friendly novel food sources with high nutritional value. Insects may be one of such novel food sources. However, there needs to be an assessment of the risks associated with their consumption, including allergic risks. Therefore, we performed a systematic review aiming to analyse current data available regarding the allergic risks of consuming insects. We reviewed all reported cases of food allergy to insects, and studied the possibility of cross-reactivity and co-sensitisation between edible insects, crustaceans and house dust mites...
June 27, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28643898/identification-of-cross-reactive-b-cell-epitopes-between-bos-d-9-0101-bos-taurus-and-gly-m-5-0101-glycine-max-by-epitope-mapping-maldi-tof-ms
#17
Ángela María Candreva, Mario Ferrer-Navarro, Silvia Bronsoms, Alejandra Quiroga, Renata Curciarello, Ana Cauerhff, Silvana Petruccelli, Guillermo Horacio Docena, Sebastián Alejandro Trejo
Exposure to cow's milk constitutes one of the most common causes of food allergy. In addition, exposure to soy proteins has become relevant in a restricted proportion of milk allergic pediatric patients treated with soy formulae as a dairy substitute, because of the cross-allergenicity described between soy and milk proteins . We have previously identified several cross-reactive allergens between milk and soy that may explain this intolerance. The purpose of the present work was to identify epitopes in the purified αS1-casein and the recombinant soy allergen Gly m 5...
June 23, 2017: Proteomics
https://www.readbyqxmd.com/read/28632196/drug-hypersensitivity-and-desensitizations-mechanisms-and-new-approaches
#18
REVIEW
Leticia de Las Vecillas Sánchez, Leila A Alenazy, Marlene Garcia-Neuer, Mariana C Castells
Drug hypersensitivity reactions (HSRs) are increasing in the 21st Century with the ever expanding availability of new therapeutic agents. Patients with cancer, chronic inflammatory diseases, cystic fibrosis, or diabetes can become allergic to their first line therapy after repeated exposures or through cross reactivity with environmental allergens. Avoidance of the offending allergenic drug may impact disease management, quality of life, and life expectancy. Precision medicine provides new tools for the understanding and management of hypersensitivity reactions (HSRs), as well as a personalized treatment approach for IgE (Immunoglobuline E) and non-IgE mediated HSRs with drug desensitization (DS)...
June 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28605372/a-component-resolved-diagnostic-approach-for-a-study-on-grass-pollen-allergens-in-chinese-southerners-with-allergic-rhinitis-and-or-asthma
#19
Wenting Luo, Guichang Pan, Huimin Huang, Peiyan Zheng, Nili Wei, Yifei Zhang, Guangqiao Zeng, Baoqing Sun
Sensitization to grass pollen imposes a global risk for allergic airway diseases. Although prevention relies on local investigation of the pollen allergens, data on this topic are limited in southern China. Any available data were obtained by self-report questionnaires, skin prick tests, and total or specific IgE tests using crude extracts. For many reasons, these methods are unreliable. Serum sIgE reactivity to Bermuda grass, Timothy grass, and Humulus scandens allergens in a cohort of patients from Greater Guangzhou (southern China's largest city and its outskirts) with allergic rhinitis and/or asthma were examined using a fully-automated immunoassay analyzer as a component-resolved diagnostics (CRD) tool...
June 4, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28550987/molecular-diagnostics-and-lack-of-clinical-allergy-in-helminth-endemic-areas-in-indonesia
#20
Firdaus Hamid, Serge A Versteeg, Aprilianto E Wiria, Linda J Wammes, Sitti Wahyuni, Taniawati Supali, Erliyani Sartono, Ronald van Ree, Maria Yazdanbakhsh
Allergen microarray characterization of sensitization to common allergen sources in a helminth-endemic area of Indonesia shows that helminth induced cross-reactivity to cross-reactive carbohydrate determinants (CCD), and not primary sensitization to their major allergens, is the dominant feature.
May 24, 2017: Journal of Allergy and Clinical Immunology
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