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Allergy

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https://www.readbyqxmd.com/read/28345783/natural-tolerance-development-in-cow-s-milk-allergic-children-ige-and-igg4-epitope-binding
#1
Jean Christoph Caubet, Jing Lin, Birgit Ahrens, Gustavo Gimenez, Luda Bardina, Bodo Niggemann, Hugh A Sampson, Kirsten Beyer
BACKGROUND: Although most of cow's milk (CM) allergic children will outgrow their allergy, the pathomechanism of the natural development of tolerance remains poorly understood. It has been suggested that the balance between milk specific IgE and IgG4 plays a major role. OBJECTIVE: We aimed to investigate differences in IgE and IgG4 antibody binding to cow's milk (CM) epitopes between patients with persistent CM allergy (CMA) and those that naturally became tolerant...
March 27, 2017: Allergy
https://www.readbyqxmd.com/read/28328103/characterization-of-maize-chitinase-a-a-tough-allergenic-molecule
#2
Mariateresa Volpicella, Claudia Leoni, Immacolata Fanizza, Marco Distaso, Guido Leoni, Laura Farioli, Todd Naumann, Elide Pastorello, Luigi Ruggiero Ceci
BACKGROUND: Food allergies are recognized as an increasing health concern. They are caused by specific proteins called food allergens. Proteins commonly identified as food allergens tend to have one of about 30 different biochemical activities. This leads to the assumption that food allergens must have specific structural features which causes their allergenicity. But these structural features are not completely understood. Uncovering the structural basis of allergenicity would allow improved diagnosis and therapy of allergies and would provide insights for safer food production...
March 22, 2017: Allergy
https://www.readbyqxmd.com/read/28328094/asthma-management-a-new-phenotype-based-approach-using-presence-of-eosinophilia-and-allergy
#3
REVIEW
Milan Terl, Vratislav Sedlák, Petr Cap, Renata Dvořáková, Viktor Kašák, Tomáš Kočí, Bronislava Novotna, Ester Seberova, Petr Panzner, Vladimir Zindr
Asthma is a heterogeneous disease. The Czech Pneumology and Allergology Societies commissioned 10 experts to review the literature and create joint national guidelines for managing asthma, reflecting this heterogeneity. The aim was to develop an easy-to-use diagnostic strategy as a rational approach to the widening opportunities for the use of phenotype-targeted therapy. The guidelines were presented on websites for public comments by members of both the societies. The reviewers' comments contributed to creating the final version of the guidelines...
March 22, 2017: Allergy
https://www.readbyqxmd.com/read/28328081/btk-inhibition-is-a-potent-approach-to-block-ige-mediated-histamine-release-in-human-basophils
#4
Dubravka Smiljkovic, Katharina Blatt, Gabriele Stefanzl, Yulia Dorofeeva, Cathrin Skrabs, Margarete Focke-Tejkl, Wolfgang R Sperr, Ulrich Jaeger, Rudolf Valenta, Peter Valent
BACKGROUND: Recent data suggest that Bruton's tyrosine kinase (BTK) is an emerging therapeutic target in IgE receptor (IgER) cross-linked basophils. METHODS: We examined the effects of four BTK inhibitors (ibrutinib, dasatinib, AVL-292, CNX-774) on IgE-dependent activation and histamine release in blood basophils obtained from allergic patients (n=11) and non-allergic donors (n=5). In addition, we examined the effects of these drugs on the growth of the human basophil cell line KU812 and the human mast cell line HMC-1...
March 22, 2017: Allergy
https://www.readbyqxmd.com/read/28317175/occupational-respiratory-allergy-in-peach-crop-workers
#5
Remedios Pérez-Calderón, M Ángeles Gonzalo-Garijo, Francisco José Rodríguez-Velasco, Silvia Sánchez-Vega, Borja Bartolomé-Zavala
BACKGROUND: Occupational respiratory diseases in workers of peach tree crops have been reported punctually and have been associated with sensitization to proteins present in both pollen and leaf tree. We report the study of 37 workers with respiratory symptoms related to occupational exposure to peach trees. METHODS: Prick tests and specific IgE determinations were performed with extracts from leaves and branches of peach tree. Immunodetection in leaf extract was realized by SDS-PAGE-immunoblotting with patient sera and rabbit serum anti-Pru p 3...
March 20, 2017: Allergy
https://www.readbyqxmd.com/read/28306160/new-approach-shows-no-association-between-maternal-milk-fatty-acid-composition-and-childhood-wheeze-or-asthma
#6
Chad A Logan, Stephanie Brandt, Martin Wabitsch, Hermann Brenner, Frank Wiens, Bernd Stahl, Tamás Marosvölgyi, Tamás Decsi, Dietrich Rothenbacher, Jon Genuneit
BACKGROUND: Previous observational studies have implied breast milk fatty acid composition may play a role in development of atopic eczema or atopic sensitization in breastfed infants and toddlers. However, studies investigating associations with wheeze and asthma in later childhood are scarce and did not account for inherent correlation of compositional data. Our aim was to explore the association of maternal milk fatty acid composition with childhood wheezing phenotypes and asthma up to age 13 years using a new statistical approach...
March 17, 2017: Allergy
https://www.readbyqxmd.com/read/28306159/positioning-the-principles-of-precision-medicine-in-care-pathways-for-allergic-rhinitis-and-chronic-rhinosinusitis-an-euforea-aria-epos-airways-icp-statement
#7
P W Hellings, W J Fokkens, C Bachert, C A Akdis, T Bieber, I Agache, M Bernal-Sprekelsen, G W Canonica, P Gevaert, G Joos, V Lund, A Muraro, M Onerci, T Zuberbier, B Pugin, S F Seys, J Bousquet
Precision medicine (PM) is increasingly recognized as the way forward for optimizing patient care. Introduced in the field of oncology, it is now considered of major interest in other medical domains like allergy and chronic airway diseases, which face an urgent need to improve the level of disease control, enhance patient satisfaction and increase effectiveness of preventive interventions. The combination of personalized care, prediction of treatment success, prevention of disease and patient participation in the elaboration of the treatment plan is expected to substantially improve the therapeutic approach for individuals suffering from chronic disabling conditions...
March 17, 2017: Allergy
https://www.readbyqxmd.com/read/28306146/the-relationship-between-nasopharyngeal-ccl5-and-microbiota-on-disease-severity-among-infants-with-bronchiolitis
#8
Kohei Hasegawa, Jonathan M Mansbach, Nadim J Ajami, Joseph F Petrosino, Robert J Freishtat, Stephen J Teach, Pedro A Piedra, Carlos A Camargo
Emerging evidence suggests that the airway microbiota plays an important role in viral bronchiolitis pathobiology. However, little is known about the combined role of airway microbiota and CCL5 in infants with bronchiolitis. In this multicenter prospective cohort study of 1,005 infants (age <1 year) hospitalized for bronchiolitis during 2011-2014, we observed statistically-significant interactions between nasopharyngeal airway CCL5 levels and microbiota profiles with regard to the risk of both intensive care use (Pinteraction =0...
March 17, 2017: Allergy
https://www.readbyqxmd.com/read/28295424/long-term-future-risk-of-severe-exacerbations-distinct-5-year-trajectories-of-problematic-asthma
#9
Anthony C A Yii, Jessica H Y Tan, Therese S Lapperre, Adrian K W Chan, Su Y Low, Thun H Ong, Keng L Tan, Sanjay H Chotirmall, Peter J Sterk, Mariko S Koh
BACKGROUND: Assessing future risk of exacerbations is an important component of asthma management. Existing studies have investigated short-, but not long-term risk. Problematic asthma patients with unfavorable long-term disease trajectory and persistently frequent severe exacerbations need to be identified early to guide treatment. METHODS: Severe exacerbation rates over five years for 177 "problematic asthma" patients presenting to a specialist asthma clinic were tracked...
March 11, 2017: Allergy
https://www.readbyqxmd.com/read/28281298/children-with-atopic-dermatitis-and-frequent-emollient-use-have-increased-urinary-levels-of-low-molecular-weight-phthalate-metabolites-and-parabens
#10
Line E K Overgaard, Katharina M Main, Hanne Frederiksen, Steen Stender, Pal B Szecsi, Hywel C Williams, Jacob P Thyssen
BACKGROUND: Parabens may be added to cosmetic and personal care products for preservation purposes. Low-molecular weight (LMW) phthalate diesters function as plasticizers, fixatives or solvents in such products, but may also be found in small quantities as contaminants from plastic containers. OBJECTIVE: To evaluate the association between emollient use, atopic dermatitis and FLG mutations, respectively, with urinary concentrations of phthalate metabolites and parabens in Danish children...
March 9, 2017: Allergy
https://www.readbyqxmd.com/read/28273354/mtorc2-controls-th9-polarization-and-allergic-airway-inflammation
#11
Hui Chen, Lianjun Zhang, Peng Wang, Huiting Su, Wei Wang, Zhulang Chu, Lianfeng Zhang, Xiaodong Zhang, Yong Zhao
BACKGROUND: T helper type 9 (Th9) cells, a subpopulation of CD4(+) T cells, play a critical role in the pathogenesis of allergic airway inflammation. However, it remains unknown whether mTORC2 regulates Th9 differentiation or function during allergic inflammation. METHODS: T cell-specific Rictor-deficient mice, a mouse model of allergic airway inflammation induced by OVA sensitization and a mouse model of adoptive transfer of induced Th9 cells were used to address the roles of mTORC2 in the pathogenesis of allergic airway inflammation...
March 8, 2017: Allergy
https://www.readbyqxmd.com/read/28273344/oxidative-stress-serves-as-a-key-checkpoint-for-il-33-release-by-airway-epithelium
#12
Masaru Uchida, Erik L Anderson, Diane L Squillace, Nandadevi Patil, Peter J Maniak, Koji Iijima, Hirohito Kita, Scott M O'Grady
BACKGROUND: Interleukin (IL)-33 is implicated in the pathophysiology of asthma and allergic diseases. However, our knowledge is limited regarding how IL-33 release is controlled. The transcription factor nuclear factor-erythroid-2-related factor 2 (Nrf2) plays a key role in antioxidant response regulation. OBJECTIVE: The goal of this project was to investigate the role of cellular oxidative stress in controlling IL-33 release in airway epithelium. METHODS: Complementary approaches were used that included human bronchial epithelial cells and mouse models of airway type-2 immunity that were exposed to fungus Alternaria extract...
March 8, 2017: Allergy
https://www.readbyqxmd.com/read/28273339/clinical-benefits-of-treatment-with-sq-house-dust-mite-sublingual-tablet-in-house-dust-mite-allergic-rhinitis
#13
Kristian Funding Andersen, Pascal Demoly, Jörg Kleine-Tebbe, Dorte Rehm
Treatment with SQ house dust mite sublingual tablet for 1 year resulted in a decreased probability of having an allergic rhinitis exacerbation day (from 11% (placebo) to 5% (SQ house dust mite sublingual tablet)) and an increased probability of having a mild allergic rhinitis day (from 16% (placebo) to 34% (SQ house dust mite sublingual tablet)). This article is protected by copyright. All rights reserved.
March 8, 2017: Allergy
https://www.readbyqxmd.com/read/28273338/prevalence-of-type-i-sensitization-to-alpha-gal-in-forest-service-employees-and-hunters
#14
Jörg Fischer, Elena Lupberger, Johanna Hebsaker, Gunnar Blumenstock, Elisabeth Aichinger, Amir S Yazdi, Doris Reick, Rainer Oehme, Tilo Biedermann
BACKGROUND: The production of IgE molecules specific to the carbohydrate galactose-α-1,3-galactose (alpha-gal) is known to induce delayed anaphylaxis against mammalian meat. Tick bites constitute the primary sensitization source, as ticks transfer alpha-gal in their saliva to a host during a bite. The reported prevalence of alpha-gal-specific IgE (alpha-gal-sIgE) positivity varies between different populations from diverse geographic regions. OBJECTIVE: To investigate the prevalence of alpha-gal-sIgE positivity in a population of forest service employees who are highly exposed to ticks in comparison with a residential population and a historic sample...
March 8, 2017: Allergy
https://www.readbyqxmd.com/read/28273336/questionable-diagnostic-benefit-of-the-commercially-available-panel-of-bee-venom-components
#15
Lisa Arzt, Danijela Bokanovic, Christoph Schrautzer, Ines Schwarz, Karin Laipold, Werner Aberer, Gunter Sturm
For many years, only the major allergen rApi-m-1 has been available on the ImmunoCAP system for routine diagnosis of bee venom (BV) allergy. Now, there are 5 components available and we aimed to detect sensitivity and specificity of rApi m 1, 2, 3, 5 and 10 in BV allergic patients. We further evaluated sensitivity of rApi-m-1 and 2 of an alternative platform and investigated possible differences in the sensitization profile between monosensitization and clinically relevant double sensitization. Analysis of the whole panel of BV allergens of the CAP system still resulted in a lower sensitivity than the combination of rApi-m-1 and 2 of the Immulite (71...
March 8, 2017: Allergy
https://www.readbyqxmd.com/read/28258963/interferon-%C3%AE-induced-insufficient-autophagy-contributes-to-p62-dependent-apoptosis-of-epithelial-cells-in-chronic-rhinosinusitis-with-nasal-polyps
#16
Bao-Feng Wang, Ping-Ping Cao, Zhi-Chao Wang, Zhi-Yong Li, Zhe-Zheng Wang, Jin Ma, Bo Liao, Yi-Ke Deng, Xiao-Bo Long, Kai Xu, Heng Wang, Hai Wang, Ming Zeng, Xiang Lu, Zheng Liu
BACKGROUND: Autophagy is a lysosomal degradation pathway that is essential for cell survival, differentiation, and homeostasis. This study aimed to investigate the contribution of autophagy to the pathogenesis of CRS with nasal polyps (CRSwNP). METHODS: The expression of autophagic proteins [microtubule-associated protein 1 light chain 3B (LC3B)-II, autophagy-related proteins (Atg), and Beclin 1], substrate proteins (p62 and ubiquitinated proteins), and apoptotic signaling molecules [cysteine-aspartic protease-3 and 8, and poly-ADP-ribose polymerase] in the sinonasal mucosa and nasal epithelial cells (NECs) was detected by immunohistochemistry and Western blotting...
March 4, 2017: Allergy
https://www.readbyqxmd.com/read/28252802/pru-p-3-a-marker-allergen-for-lipid-transfer-protein-ltp-sensitization-also-in-central-europe
#17
Nadine Mothes-Luksch, Marianne Raith, Georg Stingl, Margarete Focke-Tejkl, Ebrahim Razzazi-Fazeli, Rene Zieglmayer, Stefan Wöhrl, Ines Swoboda
In the Mediterranean area, lipid transfer proteins (LTPs) are important causes of plant food allergies often associated with severe allergic reactions. There, peach LTP (Pru p 3) seems to be the primary sensitizer, whereas in Central Europe little is known about the importance of LTP-sensitization. In this region allergen extract based diagnosis is often complicated by co-sensitization to Bet v 1, the major birch pollen allergen, its cross-reactive food allergens and profilins. We investigated the role of LTP-sensitization in Central European patients displaying strong allergic reactions to plant-derived food...
March 2, 2017: Allergy
https://www.readbyqxmd.com/read/28235151/skin-prick-tests-and-specific-ige-in-10-year-old-children-agreement-and-association-with-allergic-diseases
#18
Amandine Chauveau, Marie-Laure Dalphin, Frederic Mauny, Vincent Kaulek, Elisabeth Schmausser-Hechfellner, Harald Renz, Josef Riedler, Juha Pekkanen, Anne M Karvonen, Roger Lauener, Caroline Roduit, Dominique Angèle Vuitton, Erika von Mutius, Jean-Charles Dalphin
BACKGROUND: Accurate assessment of atopic sensitization is pivotal to clinical practice and research. Skin prick test (SPT) and specific IgE (sIgE) are often used interchangeably. Some studies have suggested a disagreement between these two methods, and little is known about their association with allergic diseases. The aims of our study were to evaluate agreement between SPT and sIgE, and to compare their association with allergic diseases in 10-year old children. METHODS: SPT, sIgE measurements and assessment of allergic diseases were performed in children aged 10 years old in the Protection against Allergy: STUdy of Rural Environment (PASTURE) cohort...
February 24, 2017: Allergy
https://www.readbyqxmd.com/read/28235139/current-status-in-diagnosis-of-atopic-dermatitis-in-china
#19
Ruhong Cheng, Yifeng Guo, Linting Huang, Fei Hao, Xinhua Gao, Thomas Bieber, Zhirong Yao
In China, eczema and atopic dermatitis (AD) have been traditionally considered as 2 distinct entities. Eczema typically referred to the milder phenotypes or to phenotypes with atypical morphology and distribution of lesions and many dermatologists have ever recognized that the "eczema" diagnosed clinically by them is actually milder phenotypes or phenotypes with atypical morphology and distribution of lesions of AD. Moreover, AD, contact dermatitis, diaper dermatitis, perioral dermatitis, halo dermatitis, pompholyx, seborrheic dermatitis, etc...
February 24, 2017: Allergy
https://www.readbyqxmd.com/read/28235135/allergenome-characterization-of-the-mosquito-aedes-aegypti
#20
J F Cantillo, L Puerta, P Puchalska, S Lafosse-Marin, J L Subiza, E Fernández-Caldas
BACKGROUND: Saliva and muscle derived mosquito allergens have been purified and characterized. However, the complete set of allergens remains to be elucidated. In this study, we identified and characterized IgE-binding proteins from the mosquito species A. aegypti. METHODS: Serum was obtained from 15 allergic individuals with asthma and/or rhinitis and sensitized to mosquito. IgE-binding was determined by ELISA. Total proteins from freeze dried bodies of A. aegypti were extracted and IgE reactive proteins were identified by 2D-gel electrophoresis, followed by Western blot with pooled or individual sera...
February 24, 2017: Allergy
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