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Allergen immunotherapy

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https://www.readbyqxmd.com/read/29450658/modified-allergens-for-immunotherapy
#1
REVIEW
Pattraporn Satitsuksanoa, Anna Głobińska, Kirstin Jansen, Willem van de Veen, Mübeccel Akdis
PURPOSE OF REVIEW: During the past few decades, modified allergens have been developed for use in allergen-specific immunotherapy (AIT) with the aim to improve efficacy and reduce adverse effects. This review aims to provide an overview of the different types of modified allergens, their mechanism of action and their potential for improving AIT. RECENT FINDINGS: In-depth research in the field of allergen modifications as well as the advance of recombinant DNA technology have paved the way for improved diagnosis and research on human allergic diseases...
February 16, 2018: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/29446469/clinical-trials-in-allergen-immunotherapy-current-concepts-and-future-needs
#2
REVIEW
O Pfaar, M Alvaro, V Cardona, E Hamelmann, R Mösges, J Kleine-Tebbe
Allergen immunotherapy (AIT) is a safe, effective treatment for allergic rhinoconjunctivitis and allergic asthma. However, AIT's clinical effect is still contested - primarily due to heterogeneity in clinical trial designs, study populations, therapeutic formulations and efficacy criteria. After discussing current concepts and unmet needs, an international panel of experts made several recommendations: (i) explore and validate definitions for [clinical] responders in AIT-trials; (ii) use of well-documented, standardized provocation tests prior to inclusion of subjects with relevant diseases in AIT trials; (iii) monitoring neo-sensitizations and occurrence of new allergy in extended AIT trials, and exclusion of polyallergic participants; (iv) validation of allergen exposure chambers with regard to natural exposure; (v) in studies of seasonal allergies, focus on peak exposure but also consider organising two parallel, geographically distinct but otherwise identical trials; (vi) discuss adaptive trial designs with the regulatory authorities; (vii) use e-health and m-health technologies to capture more information on individual exposure to allergens; (viii) initiate research on potential psychological, biochemical, immune, neural and even genomic markers of the placebo response; (ix) identify trial designs and primary endpoints that will give children with allergies easier, faster access to AIT formulations; and (x) promote and apply standardized methods for reporting systemic and local adverse events...
February 15, 2018: Allergy
https://www.readbyqxmd.com/read/29444820/a-modified-hypoallergenic-variant-of-the-ricinus-communis-ric-c1-protein-retains-biological-activity
#3
Thaís Pacheco-Soares, André de Oliveira Carvalho, Jucélia da Silva Araújo, Giliane da Silva de Souza, Olga L T Machado
Ric c1, an allergenic protein from Ricinus communis , is an insect α-amylase inhibitor that has become an occupational allergen. Ric c1 can cross-react with allergens from wheat, soybean, peanut, shrimp, fish, gluten, house dust, tobacco, and air fungus, thereby amplifying the concern and risks caused by Ricinus allergens. Two continuous IgE-binding epitopes were identified in Ric c1, both containing glutamic acid residues involved in IgE-binding and allergic challenges. We produced recombinant Ric c1 (rRic c1) in Escherichia coli , using primers from foliar R...
February 14, 2018: Bioscience Reports
https://www.readbyqxmd.com/read/29434524/the-control-of-allergic-rhinitis-in-real-life-a-multicenter-cross-sectional-italian-study
#4
Federica Gani, Carlo Lombardi, Laura Barrocu, Massimo Landi, Erminia Ridolo, Massimo Bugiani, Giovanni Rolla, Gianenrico Senna, Giovanni Passalacqua
Background: Allergic Rhinitis (AR) is a high-prevalence disease. In Europe about 25% of the general population is affected, and in Italy the prevalence is estimated to be 19.8%. The Allergic Rhinitis and its Impact on Asthma (ARIA) international document underlined that the prevalence of severe or refractory or overlapping rhinitis is increasing and represents a non-negligible socio-economic burden. In general, despite the social healthcare costs, allergic rhinitis remains underestimated, not sufficiently controlled and often undertreated...
2018: Clinical and Molecular Allergy: CMA
https://www.readbyqxmd.com/read/29434271/adherence-and-quality-of-life-in-adults-and-children-during-3-years-of-slit-treatment-with-grazax-a-real-life-study
#5
Hampus Kiotseridis, Peter Arvidsson, Vibeke Backer, Vagn Braendholt, Alf Tunsäter
Respiratory allergic disease represents a global health problem, 30% of the population suffers from allergic rhinoconjunctivitis and 20% suffer from asthma. Allergy immunotherapy induce immunological tolerance and thereby modify the response to allergens and sublingual immunotherapy (SLIT) offers the possibility of home administration of allergen therapy, but adherence is more uncertain. The aim of the study was to investigate the adherence with GRAZAX in adults and children ≥ 5 years during three consecutive years of treatment...
February 12, 2018: NPJ Primary Care Respiratory Medicine
https://www.readbyqxmd.com/read/29432967/lack-of-effect-of-grastek%C3%A2-on-birch-pollen-induced-allergic-rhinoconjunctivitis-in-the-environmental-exposure-unit
#6
Anne K Ellis, Mark W Tenn, Lisa M Steacy, Daniel E Adams, Andrew G Day, Terry J Walker, Hendrik Nolte
BACKGROUND: Grastek® is a standardized sublingual immunotherapy tablet(SLIT-T) approved for the treatment of grass pollen-induced allergic rhinitis(AR) and conjunctivitis. Many grass-allergic patients are also co-sensitized to birch pollen. Whether Grastek® can confer symptomatic benefits for birch pollen-induced AR symptoms is unknown. OBJECTIVE: To evaluate the treatment effect of Grastek® for birch pollen-induced AR in participants sensitized to both grass and birch pollen using the Environmental Exposure Unit(EEU)...
February 9, 2018: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/29428795/poly-anhydride-nanoparticles-containing-cashew-nut-proteins-can-induce-a-strong-th1-and-treg-immune-response-after-oral-administration
#7
Marcela Araújo Pereira, Juliana de Souza Rebouças, Rafaela de Siqueira Ferraz Carvalho, Inés Luis de Redín, Priscila Valera Guerra, Carlos Gamazo, Claudia Ida Brodskyn, Juan M Irache, Nereide Stela Santos-Magalhães
Cashew nut allergy is the second most commonly reported tree nut allergy. Traditional allergen immunotherapy presents several clinical drawbacks that can be reduced by using nanoparticles-basedallergen-delivery systems, modulating the immune response towards a protective one. In this context, the goal of this work was to assess the potential of poly(anhydride) nanoparticles (NP) for cashew nut oral immunization. Cashew nut allergens-loaded nanoparticles (CNE-NP) were prepared by solvent displacement method...
February 8, 2018: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/29423374/the-international-study-of-the-allergic-rhinitis-survey-outcomes-from-4-geographical-regions
#8
Desiderio Passali, Cemal Cingi, Paola Staffa, Francesco Passali, Nuray Bayar Muluk, Maria Luisa Bellussi
Background: Allergic rhinitis (AR) is a global health problem and is characterised by one or more symptoms, including sneezing, itching, nasal congestion and rhinorrhea. Objective: We investigated the features of AR and the physician's approach to the management of AR patients in four geographical regions. Methods: In this cross-sectional study, a questionnaire survey concerning AR was completed by Honorary and Corresponding Members of the Italian Society of Rhinology from different countries among 4 world geographical regions-Asia, Europe, the Americas, and Africa...
January 2018: Asia Pacific Allergy
https://www.readbyqxmd.com/read/29423373/changes-in-basophil-activation-during-immunotherapy-with-house-dust-mite-and-mugwort-in-patients-with-allergic-rhinitis
#9
Sae-Hoon Kim, Soon-Hee Kim, Soo-Jie Chung, Jung-Hyun Kim, Suh-Young Lee, Byung-Keun Kim, Kyung-Whan Lim, Yoon-Seok Chang
Background: The basophil activation test (BAT) is a promising tool for monitoring allergen-specific immunotherapy responses. Objective: We aimed to investigate the changes in basophil activation in response to the inhalant allergens of house dust mite (HDM) and mugwort pollen during immunotherapy in patients with allergic rhinitis. Methods: We enrolled patients with allergic rhinitis who were to receive subcutaneous immunotherapy for the inhalant allergens HDM or mugwort...
January 2018: Asia Pacific Allergy
https://www.readbyqxmd.com/read/29422859/successful-subcutaneous-allergen-specific-immunotherapy-in-refractory-atopic-keratoconjunctivitis-a-case-report
#10
Passara Jongkhajornpong, Wannada Laisuan
Purpose: We report a case of refractory atopic keratoconjunctivitis (AKC) which was successfully treated with subcutaneous immunotherapy (SCIT). Case Report: A 22-year-old woman presented with severe allergic conjunctivitis for one and a half year. She failed to respond to conventional topical anti-allergic medications, topical corticosteroid, as well as topical cyclosporine A. Therefore, oral corticosteroids had to be prescribed to control the exacerbation for 1 year...
September 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/29422821/twenty-years-observation-of-subcutaneous-pollen-allergoid-immunotherapy-efficacy-in-adults
#11
Andrzej Bożek, Izabella Krupa-Borek, Jerzy Jarzab
Introduction: It is valuable to determine the long-term efficacy of allergen-specific immunotherapy (SIT) and whether it can cure allergy. Aim: For this study, patients were prospectively observed for 20 years after completion of SIT to determine its effectiveness. Material and methods: A total of 1006 patients who underwent SIT for pollen allergy were observed for 20 years to assess the efficacy of SIT. The rhinitis symptom score (RSS) and asthma symptom score (ASS) were measured after SIT completion...
December 2017: Postȩpy Dermatologii i Alergologii
https://www.readbyqxmd.com/read/29413341/allergic-asthma-is-associated-with-increased-risk-of-infections-requiring-antibiotics
#12
Christian Woehlk, Anna von Bülow, Margit Kriegbaum, Vibeke Backer, Celeste Porsbjerg
BACKGROUND: Viral infection and allergy have been identified as major risk factors for exacerbation in asthma, especially in the presence of both. However, whether patients with allergic asthma are more susceptible to respiratory infections requiring antibiotics remains unknown. OBJECTIVE: To investigate allergy as a risk factor for respiratory infections requiring antibiotics based on register data from a nationwide population of patients with asthma. METHODS: A register-based prospective follow-up study was performed using the Danish prescription database...
February 2018: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/29413340/basophils-from-allergic-rhinitis-patients-show-allergen-specific-upregulation-of-thymic-stromal-lymphopoietin-receptor
#13
Tomoyuki Arai, Daiju Sakurai, Tomohisa Iinuma, Takuya Nakagawa, Syuji Yonekura, Yoshitaka Okamoto
BACKGROUND: An allergic rhinitis (AR) diagnosis is based on typical nasal symptoms and allergen sensitization testing. However, it is sometimes difficult to distinguish AR from non-AR, and it is especially difficult to identify the causal allergen for immunotherapy of patients with AR. OBJECTIVE: To identify differences among patients with AR, subjects with asymptomatic sensitization (AS), and subjects without sensitization (NS) that could facilitate the diagnosis of AR...
February 2018: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/29413339/current-insights-in-allergen-immunotherapy
#14
REVIEW
Giovanni Passalacqua, Diego Bagnasco, Matteo Ferrando, Enrico Heffler, Francesca Puggioni, Giorgio Walter Canonica
OBJECTIVE: Allergen-specific immunotherapy (AIT) in its subcutaneous and sublingual forms is currently a well-established and experimentally supported treatment for respiratory allergy and hymenoptera venom allergy. There have been advances in its use linked strictly to the advancement in the knowledge of the molecular mechanisms of allergy, the production of well-characterized extracts, and diagnostic techniques. The use of AIT in asthma and the application of new approaches are expanding...
February 2018: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/29411550/dog-and-cat-allergies-current-state-of-diagnostic-approaches-and-challenges
#15
REVIEW
Sanny K Chan, Donald Y M Leung
Allergies to dogs and cats affect 10%-20% of the population worldwide and is a growing public health concern as these rates increase. Given the prevalence of detectable dog and cat allergens even in households without pets, there is a critical need to accurately diagnose and treat patients to reduce morbidity and mortality from exposure. The ability to diagnose cat sensitization is good, in contrast to dogs. Component resolved diagnostics of sensitization to individual allergenic proteins will dramatically improve diagnosis...
March 2018: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/29408409/characterization-of-a-hybrid-protein-designed-with-segments-of-allergens-from-blomia-tropicalis-and-dermatophagoides-pteronyssinus
#16
Dalgys Martínez, Jose Fernando Cantillo, Helber Herazo, Judith Wortmann, Walter Keller, Luis Caraballo, Leonardo Puerta L
BACKGROUND: Sensitization to allergens of the house dust mites Dermatophagoides pteronyssinnus and Blomia tropicalis is an important risk factor for asthma and allergic diseases. Allergen-specific immunotherapy is currently based on natural allergen extracts, however, in the last years recombinant allergens with different modifications have shown promising immunological properties that may be advantageously applied for developing novel allergy vaccines. METHODS: A hybrid molecule (MAVAC-BD-2) containing epitopes of B...
February 3, 2018: Immunology Letters
https://www.readbyqxmd.com/read/29406839/allergic-rhinitis-management-what-s-next
#17
Farnaz Tabatabaian, Thomas B Casale
Allergic rhinitis (AR) is characterized by the presence of congestion, postnasal drainage, sneezing and rhinorrhea. AR contributes to reduced productivity and significant morbidity worldwide. Areas Covered: We review data emphasizing that the most effective therapy to alter the course of AR is allergen-specific immunotherapy, either subcutaneous or sublingual. However, significant advancements in developing alternative forms of therapies have opened the door for potential novel avenues of treating patients with AR...
February 6, 2018: Expert Review of Clinical Immunology
https://www.readbyqxmd.com/read/29397373/the-journal-of-allergy-and-clinical-immunology-in%C3%A2-practice-2017-year-in-review
#18
REVIEW
Michael Schatz, Scott H Sicherer, Robert S Zeiger
An impressive number of clinically impactful studies and reviews were published in The Journal of Allergy and Clinical Immunology: In Practice in 2017. As a service to our readers, the editors provide this Year in Review article to highlight and contextualize the advances published over the past year. We include information from articles on asthma, allergic rhinitis, rhinosinusitis, immunotherapy, atopic dermatitis, contact dermatitis, food allergy, anaphylaxis, drug hypersensitivity, urticarial/angioedema, eosinophilic disorders, and immunodeficiency...
January 31, 2018: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/29391255/an-unexpected-protective-role-of-low-affinity-allergen-specific-igg-via-the-inhibitory-receptor-fc%C3%AE-riib
#19
Martin Bachmann, Monique Vogel, Lisha Zha, Fabiana Leoratti, Lichun He, Mona O Mohsen, Federico Storni, Mark Cragg
BACKGROUND: Induction of allergen-specific IgG antibodies is a critical parameter for successful specific immunotherapy (SIT). IgG antibodies may inhibit IgE-mediated mast cell activation by direct allergen-neutralization or via the inhibitory receptor FcγRIIb. The affinity of IgE antibodies to the allergen has been shown to be critical for cellular activation. OBJECTIVE: Here we addressed the question of the affinity thresholds of allergen-specific IgG antibodies for inhibition of mast cell activation by using 2 different monoclonal antibodies against the major cat allergen, Fel d 1, both in vitro and in vivo in mice...
January 29, 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29381449/critical-aspects-in-dog-allergen-immunotherapy-dai-may-component-resolved-diagnosis-crd-play-a-role-in-predicting-the-efficacy
#20
Gennaro Liccardi, Luigino Calzetta, Manlio Milanese, Carlo Lombardi, Eleonora Savi, Giovanni Passalacqua, Paola Rogliani
No abstract text is available yet for this article.
January 30, 2018: Human Vaccines & Immunotherapeutics
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