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Allergy

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https://www.readbyqxmd.com/read/28543283/targeting-pp2a-and-proteasome-activity-ameliorates-features-of-allergic-airway-disease-in-mice
#1
Prema M Nair, Malcolm R Starkey, Tatt Jhong Haw, Gang Liu, Jay C Horvat, Jonathan C Morris, Nikki M Verrills, Andrew R Clark, Alaina J Ammit, Philip M Hansbro
BACKGROUND: Asthma is an allergic airway disease (AAD) caused by aberrant immune responses to allergens. Protein phosphatase-2A (PP2A) is an abundant serine/threonine phosphatase with anti-inflammatory activity. The ubiquitin proteasome system (UPS) controls many cellular processes, including the initiation of inflammatory responses by protein degradation. We assessed if enhancing PP2A activity with Fingolimod (FTY720) or 2-amino-4-(4-(heptyloxy) phenyl)-2-methylbutan-1-ol (AAL(S) ), or inhibiting proteasome activity with Bortezomib (BORT) could suppress experimental AAD...
May 24, 2017: Allergy
https://www.readbyqxmd.com/read/28543717/poaceae-pollen-as-the-leading-aeroallergen-worldwide-a-review
#2
REVIEW
H García-Mozo
The Poaceae family comprises over 12,000 wind-pollinated species which release large amounts of pollen into the atmosphere. Poaceae pollen is currently regarded as the leading airborne biological pollutant and the chief cause of pollen-allergy worldwide. Sensitization rates vary by country, and those variations are reviewed here. Grass pollen allergens are grouped according to their protein structure and function. In Poaceae, although species belonging to different sub-families are characterized by distinct allergen subsets, there is a considerable degree of cross-reactivity between many species...
May 22, 2017: Allergy
https://www.readbyqxmd.com/read/28542911/changes-in-patient-quality-of-life-during-oral-immunotherapy-for-food-allergy
#3
Na'ama Epstein Rigbi, Michael R Goldberg, Michael B Levy, Liat Nachshon, Keren Golobov, Arnon Elizur
BACKGROUND: Quality of life is (QOL) impaired in patients with food allergy and improves following oral immunotherapy (OIT). However, the treatment itself is prolonged and demanding. We examined changes in patient QOL during OIT for food allergy. METHODS: The FAQLQ-PF was administered to children aged 4-12 years undergoing OIT for milk, peanut or egg allergy, at the beginning and after 4 months of treatment. Patients were categorized as improved, unchanged, or diminished FAQLQ-PF (>0...
May 22, 2017: Allergy
https://www.readbyqxmd.com/read/28543193/patterns-of-anaphylaxis-after-diagnostic-work-up-a-follow-up-study-of-226-patients-with-suspected-anaphylaxis
#4
Athamaica Ruiz Oropeza, Carsten Bindslev-Jensen, Sigurd Broesby-Olsen, Thomas Kristensen, Michael Boe Møller, Hanne Vestergaard, Henrik Fomsgaard Kjaer, Susanne Halken, Annmarie Lassen, Charlotte G Mortz
BACKGROUND: Most published studies on anaphylaxis are retrospective or register based. Data on subsequent diagnostic work-up are sparse. We aimed to characterize patients seen with suspected anaphylaxis at the emergency care setting (ECS), after subsequent diagnostic work-up at our Allergy Center (AC). METHODS: Prospective study including patients from the ECS, Odense University Hospital, during May 2013-April 2014. Possible anaphylaxis cases were daily identified based on a broad search profile including history and symptoms in patient records, diagnostic codes and pharmacological treatments...
May 19, 2017: Allergy
https://www.readbyqxmd.com/read/28543086/allergen-immunotherapy-for-allergic-asthma-a-systematic-review-and-meta-analysis
#5
REVIEW
Sangeeta Dhami, Artemisia Kakourou, Felix Asamoah, Ioana Agache, Susanne Lau, Jutel Marek, Antonella Muraro, Graham Roberts, Cezmi A Akdis, Matteo Bonini, Ozlem Cavkaytar, Breda Flood, Pawel Gajdanowicz, Kenji Izuhara, Ömer Kalayci, Ralph Mosges, Oscar Palomares, Oliver Pfaar, Sylwia Smolinska, Milena Sokolowska, Miqdad Asaria, Gopal Netuveli, Hader Zaman, Ather Akhlaq, Aziz Sheikh
BACKGROUND: To inform the development of the European Academy of Allergy and Clinical Immunonology's (EAACI) Guidelines on Allergen Immunotherapy (AIT) for allergic asthma, we assessed the evidence on the effectiveness, cost-effectiveness and safety of AIT. METHODS: We performed a systematic review, which involved searching nine databases. Studies were screened against pre-defined eligibility criteria and critically appraised using established instruments. Data were synthesized using random-effects meta-analyses...
May 19, 2017: Allergy
https://www.readbyqxmd.com/read/28543019/the-burden-of-chronic-spontaneous-urticaria-is-substantial-real-world-evidence-from-assure-csu
#6
Marcus Maurer, Mohamed Abuzakouk, Frédéric Bérard, Walter Canonica, Hanneke Oude Elberink, Ana Giménez-Arnau, Clive Grattan, Kelly Hollis, André Knulst, Jean-Philippe Lacour, Charles Lynde, Alexander Marsland, Doreen McBride, Alla Nakonechna, Javier Ortiz de Frutos, Christina Proctor, Gordon Sussman, Carolyn Sweeney, Haijun Tian, Karsten Weller, Daniel Wolin, Maria-Magdalena Balp
BACKGROUND: Chronic spontaneous urticaria (CSU) can be debilitating, difficult to treat, and frustrating for patients and physicians. Real-world evidence for the burden of CSU is limited. The objective of this study was to document disease duration, treatment history, and disease activity, as well as impact on health-related quality of life (HRQoL) and work among patients with inadequately controlled CSU, and to describe its humanistic, societal, and economic burden. METHODS: This international observational study assessed a cohort of 673 adult patients with CSU whose symptoms persisted for ≥12 months despite treatment...
May 19, 2017: Allergy
https://www.readbyqxmd.com/read/28517027/lung-function-parameters-in-omalizumab-responder-patients-an-interesting-tool
#7
F Paganin, G Mangiapan, A Proust, A Prudhomme, J Attia, S Marchand-Adam, F Pellet, F Milhe, B Melloni, A Bernady, C Raspaud, C Nocent, P Berger, L Guilleminault
BACKGROUND: Omalizumab, an anti-IgE antibody, is used to treat patients with severe allergic asthma. The evolution of lung function parameters over time and the difference between omalizumab responder and non-responder patients remain inconclusive. The objective of this real-life study was to compare the changes in FEV1 of omalizumab responders and non-responders at 6 months. METHODS: A multicenter analysis was performed in 10 secondary and tertiary institutions...
May 18, 2017: Allergy
https://www.readbyqxmd.com/read/28513859/identification-of-a-plasma-mirna-biomarker-signature-for-allergic-asthma-a-translational-approach
#8
Katrin Milger, Jeremias Götschke, Linda Krause, Petra Nathan, Francesca Alessandrini, Amanda Tufman, Rainald Fischer, Sabine Bartel, Fabian J Theis, Jürgen Behr, Stefan Dehmel, Nikola S Mueller, Nikolaus Kneidinger, Susanne Krauss-Etschmann
BACKGROUND: Asthma is a heterogeneous chronic disease with different phenotypes and treatment responses. Thus, there is a high clinical need for molecular disease biomarkers to aid in differentiating these distinct phenotypes. As MicroRNAs (miRNAs), that regulate gene expression at the post-transcriptional level, are altered in experimental and human asthma, circulating miRNAs are attractive candidates for the identification of novel biomarkers. This study aimed to identify plasmatic miRNA-based biomarkers of asthma, through a translational approach...
May 17, 2017: Allergy
https://www.readbyqxmd.com/read/28513848/aspergillus-fumigatus-in-cystic-fibrosis-an-update-on-immune-interactions-and-molecular-diagnostics-in-abpa
#9
REVIEW
Ania Carsin, Thomas Romain, Stéphane Ranque, Martine Reynaud-Gaubert, Jean-Christophe Dubus, Jean-Louis Mège, J Vitte
A wide spectrum of pathological conditions may result from the interaction of Aspergillus fumigatus and the immune system of its human host. Allergic bronchopulmonary aspergillosis is one of the most severe Aspergillus fumigatus-related diseases due to possible evolution towards pleuropulmonary fibrosis and respiratory failure. Allergic bronchopulmonary aspergillosis occurs almost exclusively in cystic fibrosis or asthmatic patients. An estimated 8 to 10% of cystic fibrosis patients experience this condition...
May 17, 2017: Allergy
https://www.readbyqxmd.com/read/28493631/allergen-immunotherapy-for-allergic-rhinoconjunctivitis-a-systematic-review-and-meta-analysis
#10
REVIEW
Sangeeta Dhami, Ulugbek Nurmatov, Stefania Arasi, Tahir Khan, Miqdad Asaria, Hadar Zaman, Arnav Agarwal, Gopal Netuveli, Graham Roberts, Oliver Pfaar, Antonella Muraro, Ignacio J Ansotegui, Moises Calderon, Cemal Cingi, Stephen Durham, Ronald Gerth van Wijk, Susanne Halken, Eckard Hamelmann, Peter Hellings, Lars Jacobsen, Edward Knol, Desiree Larenas Linnemann, Sandra Lin, Paraskevi Maggina, Ralph Mösges, Hanneke Oude Elberink, Giovanni Pajno, Ruby Panwankar, Elide Pastorello, Martin Penagos, Constantinos Pitsios, Giuseppina Rotiroti, Frans Timmermans, Olympia Tsilochristou, Eva-Maria Varga, Carsten Schmidt-Weber, Jamie Wilkinson, Andrew Williams, Margitta Worm, Luo Zhang, Aziz Sheikh
BACKGROUND: The European Academy of Allergy and Clinical Immunology (EAACI) is in the process of developing Guidelines on Allergen Immunotherapy (AIT) for Allergic Rhinoconjunctivitis. In order to inform the development of clinical recommendations, we undertook a systematic review to assess the effectiveness, cost-effectiveness and safety of AIT in the management of allergic rhinoconjunctivitis METHODS: We searched 15 international biomedical databases for published, in progress and unpublished evidence...
May 11, 2017: Allergy
https://www.readbyqxmd.com/read/28474799/non-allergic-rhinitis-position-paper-of-the-european-academy-of-allergology-and-clinical-immunology
#11
P W Hellings, L Klimek, C Cingi, I Agache, C Akdis, C Bachert, J Bousquet, P Demoly, P Gevaert, V Hox, C Hupin, L Kalogjera, F Manole, R Mösges, J Mullol, N B Muluk, A Muraro, N Papadopoulos, R Pawankar, C Rondon, M Rundenko, S F Seys, E Toskala, L Van Gerven, L Zhang, N Zhang, W J Fokkens
This EAACI position paper aims at providing a state-of-the-art overview on non-allergic rhinitis (NAR). A significant number of patients suffering from persistent rhinitis are defined as non-allergic non-infectious rhinitis (NANIR) patients, often denominated in short as having NAR. NAR is defined as a symptomatic inflammation of the nasal mucosa with the presence of minimal 2 nasal symptoms like nasal obstruction, rhinorrhoea, sneezing, and/or itchy nose, without clinical evidence of endonasal infection and without systemic signs of sensitization to inhalant allergens...
May 5, 2017: Allergy
https://www.readbyqxmd.com/read/28474471/minimal-impact-of-extensive-heating-of-hen-s-egg-and-cow-s-milk-in-a-food-matrix-on-threshold-dose-distribution-curves
#12
Benjamin C Remington, Joost Westerhout, Dianne E Campbell, Paul J Turner
We analyzed reaction threshold data from 352 children undergoing open food challenges to hen's egg or cow's milk, either fresh or extensively heated into a muffin. There was no significant shift in dose-distribution curves due to the baking process, implying that existing threshold data for these allergens can be applied to allergen risk management, even when these allergens are heat-processed into baked foods. This article is protected by copyright. All rights reserved.
May 5, 2017: Allergy
https://www.readbyqxmd.com/read/28474379/recent-advances-in-the-use-of-nanoparticles-for-allergen-specific-immunotherapy
#13
REVIEW
Hannah Pohlit, Iris Bellinghausen, Holger Frey, Joachim Saloga
The number of patients suffering from allergic asthma and rhino-conjunctivitis has increased dramatically within the last decades. Allergen-specific immunotherapy (AIT) is the only available cause-oriented therapy so far. AIT reduces symptoms, but has also a disease modifying effect. Disadvantages are a long-lasting procedure, and in a few cases potential systemic adverse reactions. Encapsulation of allergens or DNA vaccines into nanostructures may provide advantages compared to the conventional AIT with non-capsulated allergen extracts: The protein/DNA molecule can be protected from degradation, higher local concentrations and targeted delivery to the site of action appears possible and most importantly, recognition of encapsulated allergen by the immune system, especially by IgE antibodies is prevented...
May 5, 2017: Allergy
https://www.readbyqxmd.com/read/28474352/airway-basophils-are-increased-and-activated-in-eosinophilic-asthma
#14
Yoshihiro Suzuki, Keiko Wakahara, Tomoko Nishio, Satoru Ito, Yoshinori Hasegawa
BACKGROUND: The impact of basophils on asthma pathogenesis remains largely unexplored, particularly in humans. Here, we evaluated the frequencies and activation status of basophils in the sputum of adult asthmatic patients and related our findings to other parameters of eosinophilic airway inflammation. METHODS: We enrolled 44 adult asthmatic patients who were being treated with inhaled corticosteroids (ICS). Analysis of the induced sputum, exhaled nitric oxide fraction (FeNO) measurement, and Asthma Control Test (ACT) were carried out together with standard blood and pulmonary function tests...
May 5, 2017: Allergy
https://www.readbyqxmd.com/read/28464293/amb-a-1-isoforms-unequal-siblings-with-distinct-immunological-features
#15
Martin Wolf, Teresa E Twaroch, Sara Huber, Manuel Reithofer, Markus Steiner, Lorenz Aglas, Michael Hauser, Iris Aloisi, Claudia Asam, Heidi Hofer, Maria A Parigiani, Christof Ebner, Barbara Bohle, Peter Briza, Neubauer Angela, Frank Stolz, Beatrice Jahn-Schmid, Michael Wallner, Fatima Ferreira
BACKGROUND: Ragweed pollen represents a major allergy risk factor. Ragweed extracts contain five different isoforms of the major allergen Amb a 1. However, the immunologic characteristics of Amb a 1 isoforms are not fully investigated. Here we compared the physicochemical and immunological properties of three most important Amb a 1 isoforms. METHODS: After purification, the isoforms were physicochemically characterized, tested for antibody-binding and induction of human T cell proliferative responses...
May 2, 2017: Allergy
https://www.readbyqxmd.com/read/28449362/duration-and-exclusiveness-of-breastfeeding-and-risk-of-childhood-atopic-diseases
#16
Niels J Elbert, Evelien R van Meel, Herman T den Dekker, Nicolette W de Jong, Tamar E C Nijsten, Vincent W V Jaddoe, Johan C de Jongste, Suzanne G M A Pasmans, Liesbeth Duijts
BACKGROUND: Breastfeeding may have immune modulatory effects that influence the development of childhood allergic sensitization and atopic diseases. We aimed to examine the associations of breastfeeding with childhood allergic sensitization, inhalant or food allergy and eczema, and whether any association was affected by disease-related modification of the exposure or modified by maternal history of maternal history of allergy, eczema or asthma. METHODS: This study among 5,828 children was performed in a population-based prospective cohort from fetal life onwards...
April 27, 2017: Allergy
https://www.readbyqxmd.com/read/28444953/birth-decade-affects-the-sensitization-pattern-and-asthma-risk-in-finnish-adult-population
#17
S Toppila-Salmi, A Luukkainen, R Lemmetyinen, J Karjalainen, H Huhtala, R Renkonen, D Y Wang, M J Mäkelä, J Pekkanen
We have previously shown that sensitizations to several types of allergens distinguish subjects with and without adult-onset asthma in Finland. The aim was to analyze how age affects sensitization and asthma risk. We used previous population-based case-control data (N=456) from Finnish adult asthma patients with one or two matched controls. Asthma was diagnosed based on a typical history of asthmatic symptoms and lung function tests. Allergic sensitization was determined by skin prick test (SPT) to 17 aeroallergens...
April 26, 2017: Allergy
https://www.readbyqxmd.com/read/28440062/predictive-value-of-serum-sst2-in-preschool-wheezers-for-development-of-asthma-with-high-feno
#18
M E Ketelaar, K D van de Kant, F N Dijk, E M Klaassen, N S Grotenboer, M C Nawijn, E Dompeling, G H Koppelman
Wheezing is common in childhood. However, current prediction models of pediatric asthma have only modest accuracy. Novel biomarkers and definition of subphenotypes may improve asthma prediction. Interleukin-1-receptor-like-1 (IL1RL1 or ST2) is a well-replicated asthma gene and associates with eosinophilia. We investigated whether serum sST2 predicts asthma and asthma with elevated exhaled NO (FeNO), compared to the commonly used Asthma Prediction Index (API). Using logistic regression modeling, we found that serum sST2 levels in 2-3 years-old wheezers do not predict doctors' diagnosed asthma at age 6 years...
April 25, 2017: Allergy
https://www.readbyqxmd.com/read/28439939/identification-of-a-polygalacturonase-cup-s-2-as-the-major-ccd-bearing-allergen-in-cupressus-sempervirens-pollen
#19
Y Shahali, J-P Sutra, C Hilger, K Swiontek, I Haddad, J Vinh, L Guilloux, D Charpin, H Sénéchal, P Poncet
As IgE glyco-epitopes, also referred to as cross-reactive carbohydrate determinants (CCDs), can share significant structural homologies between different plants, they are prone to extensive cross-reactivity among allergen pollen extracts. Here, cypress pollen allergens, especially a polygalacturonase (PG), were further characterized using double one-dimensional electrophoresis (D1-DE). The presence of specific IgE directed against CCDs was investigated by bromelain IgE inhibition and concanavalin A binding assays using sera of cypress pollen-sensitized patients...
April 25, 2017: Allergy
https://www.readbyqxmd.com/read/28439933/effect-of-anti-ige-in-occupational-asthma-caused-by-exposure-to-low-molecular-weight-agents
#20
M Ollé-Monge, M J Cruz, S Gomez-Ollés, I Ojanguren, J Vanoirbeek, X Muñoz
BACKGROUND: The role of immunoglobulin (Ig)-E in occupational asthma (OA) due to low molecular weight (LMW) agents is not well established compared to classical atopic asthma. In the present study we evaluate whether anti-IgE monoclonal antibody (mAb) has an effect in a mouse model of OA, using persulfate salts. METHODS: On days 1 and 8, BALB/C mice were dermally sensitized with 5% ammonium persulfate (AP) or dimethyl sulfoxide (DMSO). On days 15, 18 and 21 animals were injected intraperitoneally with anti-IgE mAb or PBS 6 hours before challenge with AP or saline...
April 25, 2017: Allergy
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