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immunotherapies for food allergy

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https://www.readbyqxmd.com/read/28812470/oral-administration-of-ovalbumin-after-sensitization-attenuates-symptoms-in-a-mouse-model-of-food-allergic-enteropathy
#1
Erika Hiraide, Mamiko Morinaga, Hiroki Hidaka, Satoki Yamada, Jun Takeyama, Noriko Kitamura, Osamu Kaminuma, Takachika Hiroi, Weibin Du, Katsuyo Ohashi-Doi, Haruyo Nakajima-Adachi, Satoshi Hachimura
Oral immunotherapy (OIT) is a promising treatment of food allergy. To administer an appropriate oral dose of an allergenic component as OIT to individuals sensitized with a food allergen may prevent inducing food allergic inflammation in them. So we attempted to establish a mouse model to evaluate efficacy for oral administration of food allergen after sensitization. In BALB/c mice sensitized by injecting ovalbumin (OVA) with alum twice, OVA was administered before inducing inflammation by feeding the mice with egg white (EW) diet...
August 16, 2017: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/28808910/nmr-resonance-assignments-of-a-hypoallergenic-isoform-of-the-major-birch-pollen-allergen-bet-v-1
#2
Linda Ahammer, Sarina Grutsch, Michael Wallner, Fatima Ferreira, Martin Tollinger
In Northern America and Europe a great number of people are suffering from birch pollen allergy and pollen related food allergies. The trigger for these immunological reactions is the 17.5 kDa major birch pollen allergen Bet v 1, which belongs to the family of PR-10 (pathogenesis-related) proteins. In nature, Bet v 1 occurs as a mixture of various isoforms that possess different immunological properties despite their high sequence identities. Bet v 1.0102 (Bet v 1d), which is investigated here, is a hypoallergenic isoform of Bet v 1 and a potential candidate for allergen-specific immunotherapy...
August 14, 2017: Biomolecular NMR Assignments
https://www.readbyqxmd.com/read/28782296/combining-anti-ige-with-oral-immunotherapy
#3
REVIEW
Chunrong Lin, Ivan T Lee, Vanitha Sampath, Chitra Dinakar, Rosemarie H DeKruyff, Lynda C Schneider, Kari C Nadeau
Food allergy is a significant medical problem that affects up to 8% of children in developed countries. At present, there are no curative therapies available in routine practice and management of food allergy involves strict allergen avoidance, education, and prompt treatment upon accidental exposure. Oral immunotherapy (OIT) is an efficacious experimental approach to food allergy and has been shown to provide a substantial benefit in terms of allergen desensitization. However, OIT is associated with high rates of allergic reactions, and the period of protection offered by OIT appears to be limited and highly variable...
August 7, 2017: Pediatric Allergy and Immunology
https://www.readbyqxmd.com/read/28780220/clinical-aspects-of-oral-immunotherapy-for-the-treatment-of-allergies
#4
REVIEW
Noriyuki Yanagida, Sakura Sato, Motohiro Ebisawa
Studies on oral immunotherapy (OIT) have been increasing worldwide. Nevertheless, some concerns exist with this treatment. The rate of long-term sustained unresponsiveness is quite low; moreover, the desensitization or sustained unresponsiveness does not equate to tolerance. Furthermore, adverse reactions are frequent. Therefore, safe and feasible methods for long-term therapies are needed. Novel therapies such as low-dose OIT, hypoallergenic products, and OIT in combination with omalizumab are reported as effective for inducing sustained unresponsiveness and may lead to fewer adverse reactions than standard OIT...
August 2, 2017: Seminars in Immunology
https://www.readbyqxmd.com/read/28763132/hydrolysed-ovalbumin-offers-more-effective-preventive-and-therapeutic-protection-against-egg-allergy-than-the-intact-protein
#5
D Lozano-Ojalvo, L Pérez-Rodríguez, A Pablos-Tanarro, E Molina, R López-Fandiño
BACKGROUND: The application of specific immunotherapy to stimulate oral tolerance towards food allergens is hampered by the high frequency of adverse side effects and the excessive duration of the treatments. OBJECTIVE: In this work, a hydrolysate of ovalbumin with pepsin (OP), selected for its low IgE reactivity and Th2-stimulating capacity, was assayed for its ability to prevent and treat allergy to egg white (EW). METHODS: As a first step, the safety of OP, in terms of the absence of sensitizing and eliciting potential, was evaluated in BALB/c mice...
August 1, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28760720/profilin-a-change-in-the-paradigm
#6
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/28760498/differences-and-similarities-between-sublingual-immunotherapy-of-allergy-and-oral-tolerance
#7
REVIEW
Philippe Moingeon, Laurent Mascarell
Allergen immunotherapy is the only treatment altering the natural course of IgE-mediated allergies. Whereas the subcutaneous route for immunotherapy (SCIT) has been historically considered as a reference, we discuss herein the relative advantages of the sublingual and oral routes as alternatives to SCIT in order to elicit allergen-specific tolerance. The buccal and gut immune systems are similarly organized to favor immune tolerance to antigens/allergens, due to the presence of tolerogenic dendritic cells and macrophages promoting the differentiation of CD4(+) regulatory T cells...
July 28, 2017: Seminars in Immunology
https://www.readbyqxmd.com/read/28756650/accurate-quantification-of-five-german-cockroach-gcr-allergens-in-complex-extracts-using-multiple-reaction-monitoring-mass-spectrometry-mrm-ms
#8
Samuel T Mindaye, Jelena Spiric, Natalie A David, Ronald L Rabin, Jay E Slater
BACKGROUND: German cockroach (GCr) allergen extracts are complex and heterogeneous products, and methods to better assess their potency and composition are needed for adequate studies of their safety and efficacy. OBJECTIVE AND METHODS: The objective of this study was to develop an assay based on liquid chromatography and multiple reaction monitoring mass spectrometry (LC-MRM MS) for rapid, accurate, and reproducible quantification of five allergens (Bla g 1, Bla g 2, Bla g3, Bla g 4, and Bla g 5) in crude GCr allergen extracts...
July 30, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28742538/anaphylaxis-and-intimate-behaviour
#9
Gennaro Liccardi, Marco Caminati, Gian Enrico Senna, Luigino Calzetta, Paola Rogliani
PURPOSE OF REVIEW: Intimate behaviours may represent an unusual way of exposure to a culprit allergen, or the frame for sex-related allergies due to triggers typically linked to that situation. The present review aims at summarizing the state of the art about the topic, in order to spread the awareness and the basic know-how in the field of sexual-related allergies. RECENT FINDINGS: Kiss-related IgE-mediated reactions are caused in sensitized partners mainly by the passive transport of allergenic molecules through saliva, skin or oral mucosa...
July 22, 2017: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28731411/oral-immunotherapy-for-food-allergy-a-spanish-guideline-immunotherapy-egg-and-milk-spanish-guide-items-guide-part-i-cow-milk-and-egg-oral-immunotherapy-introduction-methodology-rationale-current-state-indications-contraindications-and-oral-immunotherapy-build
#10
A Martorell, E Alonso, L Echeverría, C Escudero, R García-Rodríguez, C Blasco, J Bone, J Borja-Segade, T Bracamonte, A Claver, J L Corzo, B De la Hoz, R Del Olmo, O Dominguez, V Fuentes-Aparicio, I Guallar, H Larramona, F Martín-Muñoz, V Matheu, A Michavila, I Ojeda, P Ojeda, M Piquer, P Poza, M Reche, P Rodríguez Del Río, M Rodríguez, F Ruano, S Sánchez-García, S Terrados, L Valdesoiro, M Vazquez-Ortiz
BACKGROUND AND OBJECTIVE: Cow milk and egg are the most frequent causes of food allergy in the first years of life. Oral immunotherapy (OIT) has been investigated as an alternative to avoidance diets. No clinical practice guidelines on the management of OIT with milk and egg are currently available. Objectives: To develop clinical guidelines for OIT based on available scientific evidence and the opinions of experts. METHODS: A review was made of studies published between 1984 and June 2016, doctoral theses published in Spain, summaries of communications at scientific meetings (SEAIC, SEICAP, EAACI, and AAAAI), and the consensus of opinion established by a group of experts from the scientific societies SEICAP and SEAIC...
2017: Journal of Investigational Allergology & Clinical Immunology
https://www.readbyqxmd.com/read/28719388/what-is-new-in-managing-patients-with-food-allergy-almost-everything
#11
Brian Schroer, Jaclyn Bjelac, Mandy Leonard
PURPOSE OF REVIEW: This review aims to describe current concepts in managing patients with food allergy. There have been many recent advances in the management of patients with IgE-mediated reactions to food, including diagnosis, prevention, management, and ongoing research in the field. Food allergy is increasing in prevalence and may be life threatening. This review aims to highlight changes in recommended practice when diagnosing and managing patients with food allergy. RECENT FINDINGS: Early introduction of highly allergenic foods, particularly peanut, has been shown to decrease the risk for development of food allergy in patients who are at elevated risk...
July 14, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28718981/health-economic-analysis-of-allergen-immunotherapy-ait-for-the-management-of-allergic-rhinitis-asthma-food-allergy-and-venom-allergy-a-systematic-overview
#12
REVIEW
Miqdad Asaria, Sangeeta Dhami, Ronald van Ree, Roy Gerth van Wijk, Antonella Muraro, Graham Roberts, Aziz Sheikh
BACKGROUND: The European Academy of Allergy and Clinical Immunology (EAACI) is developing guidelines for allergen immunotherapy (AIT) for the management of allergic rhinitis, allergic asthma, IgE-mediated food allergy and venom allergy. To inform the development of clinical recommendations, we undertook systematic reviews to critically assess evidence on the effectiveness, safety and cost-effectiveness of AIT for these conditions. This paper focusses on synthesizing data and gaps in the evidence on the cost-effectiveness of AIT for these conditions...
July 18, 2017: Allergy
https://www.readbyqxmd.com/read/28709968/specific-allergen-profiles-of-peanut-foods-and-of-diagnostic-or-therapeutic-allergenic-products
#13
Stephanie Filep, Denise Block, Bryan R E Smith, Eva M King, Scott Commins, Michael Kulis, Brian P Vickery, Martin D Chapman
RATIONALE: 'Generic' immunoassays for peanut cannot discriminate between allergen levels in peanut derived food products or therapeutics. Clinical trials of oral immunotherapy are strengthened by using standardized peanut preparations, with defined doses of major allergens. OBJECTIVE: This paper describes measurement of Ara h 1, Ara h 2 and Ara h 6 in peanut foods and in peanut flour extracts used for allergy diagnosis and oral immunotherapy. METHODS: Monoclonal antibody-based enzyme immunoassays for Ara h 1, Ara h 2 and Ara h 6 were used to compare allergen levels in peanut (n=19) and tree nut (n=16) butter, peanut flour (n=11); oils (n=8); extracts used for diagnosis and oral immunotherapy (n=5); and the National Institute for Standards and Technology Peanut Butter Standard Reference Material® 2387...
July 11, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28697661/safety-of-a-proteoliposome-from-neisseria-meningitides-as-adjuvant-for-a-house-dust-mite-allergy-vaccine
#14
Wendy Ramírez, Virgilio Bourg, Damaris Torralba, Elisa Facenda, Beatriz Tamargo, Bárbara O González, Gustavo Sierra, Oliver Pérez, Yordanis Perez-Llano, Alexis Labrada
The proteoliposome (PL) of Neisseria meningitidis serogroup B has been reported as a safe and potent vaccine adjuvant, inducing a TH1-skewed response. The present study describes a pre-clinical safety evaluation of an allergy therapeutic vaccine candidate based on purified allergens from Dermatophagoides siboney house dust mite and PL as adjuvant, both components adsorbed onto aluminum hydroxide gel. Two separate studies of acute toxicity evaluation were performed in mice and rabbits, and two repeat-dose studies were conducted in non-sensitized and allergen-sensitized Balb/c mice, respectively...
December 2017: Journal of Immunotoxicology
https://www.readbyqxmd.com/read/28696863/update-on-oral-immunotherapy-for-egg-allergy
#15
François Graham, Natacha Tardio, Louis Paradis, Anne Des Roches, Philippe Bégin
Oral immunotherapy (OIT) is an emerging treatment for IgE-mediated egg allergy. In the past decade, a multitude of studies have assessed the potential for egg OIT to induce clinical desensitization. The following review will evaluate the efficacy and safety of this therapy as determined by randomized controlled, non-randomized controlled and uncontrolled trials. Recent studies using reduced allergenic egg products and anti-IgE assisted therapy to improve egg OIT safety will also be discussed. Recent advances in the mechanisms underlying food OIT suggest that certain immune parameters may be helpful in monitoring response to therapy, including egg OIT...
July 11, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28685970/invariant-natural-killer-cells-change-after-an-oral-allergy-desensitization-protocol-for-cow-s-milk
#16
Antonella Cianferoni, Rushani Saltzman, Francesca Saretta, Simona Barni, Emily Dudek, Mary Kelleher, Jonathan M Spergel
BACKGROUND: Cow milk (CM) allergy (CMA) affects up to 3% of the pediatric population and recent data suggest that only about 50% will outgrow by age 8. Oral immunotherapy (OIT) is a type of immune-modulating treatment that is able to induce desensitization to food allergens, to increase tolerance threshold, to reduce the risk of anaphylaxis, and to improve the patient's quality of life. The examination of the immunological changes observed during the establishment of food allergy (FA) desensitization in FA patients is a window into the pathogenesis of food allergy and food tolerance development...
July 7, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28676231/oral-immunotherapy-for-food-allergy-a-spanish-guideline-egg-and-milk-immunotherapy-spanish-guide-items-guide-part-2-maintenance-phase-of-cow-milk-cm-and-egg-oral-immunotherapy-oit-special-treatment-dosing-schedules-models-of-dosing-schedules-of-oit-with-cm
#17
REVIEW
A Martorell, E Alonso, L Echeverría, C Escudero, R García-Rodríguez, C Blasco, J Bone, J Borja-Segade, T Bracamonte, A Claver, J L Corzo, B De la Hoz, R Del Olmo, O Dominguez, V Fuentes-Aparicio, I Guallar, H Larramona, F Martín-Muñoz, V Matheu, A Michavila, I Ojeda, P Ojeda, M Piquer, P Poza, M Reche, P Rodríguez Del Río, M Rodríguez, F Ruano, S Sánchez-García, S Terrados, L Valdesoiro, M Vazquez-Ortiz
INTRODUCTION: Cow's milk and egg are the most frequent causes of food allergy in the first years of life. Treatments such as oral immunotherapy (OIT) have been investigated as an alternative to avoidance diets. No clinical practice guides on the management of OIT with milk and egg are currently available. OBJECTIVES: To develop a clinical guide on OIT based on the available scientific evidence and the opinions of experts. METHODS: A review was made of studies published in the period between 1984 and June 2016, Doctoral Theses published in Spain, and summaries of communications at congresses (SEAIC, SEICAP, EAACI, AAAAI), with evaluation of the opinion consensus established by a group of experts pertaining to the scientific societies SEICAP and SEAIC...
July 1, 2017: Allergologia et Immunopathologia
https://www.readbyqxmd.com/read/28662773/oral-immunotherapy-for-food-allergy-a-spanish-guideline-immunotherapy-egg-and-milk-spanish-guide-items-guide-part-i-cow-milk-and-egg-oral-immunotherapy-introduction-methodology-rationale-current-state-indications-contraindications-and-oral-immunotherapy-build
#18
REVIEW
A Martorell, E Alonso, L Echeverría, C Escudero, R García-Rodríguez, C Blasco, J Bone, J Borja-Segade, T Bracamonte, A Claver, J L Corzo, B De la Hoz, R Del Olmo, O Dominguez, V Fuentes-Aparicio, I Guallar, H Larramona, F Martín-Muñoz, V Matheu, A Michavila, I Ojeda, P Ojeda, M Piquer, P Poza, M Reche, P Rodríguez Del Río, M Rodríguez, F Ruano, S Sánchez-García, S Terrados, L Valdesoiro, M Vazquez-Ortiz
INTRODUCTION: Cow's milk and egg are the most frequent causes of food allergy in the first years of life. Treatments such as oral immunotherapy (OIT) have been investigated as an alternative to avoidance diets. No clinical practice guides on the management of OIT with milk and egg are currently available. OBJECTIVES: To develop a clinical guide on OIT based on the available scientific evidence and the opinions of experts. METHODS: A review was made of studies published in the period between 1984 and June 2016, Doctoral Theses published in Spain, and summaries of communications at congresses (SEAIC, SEICAP, EAACI, AAAAI), with evaluation of the opinion consensus established by a group of experts pertaining to the scientific societies SEICAP and SEAIC...
July 2017: Allergologia et Immunopathologia
https://www.readbyqxmd.com/read/28622169/molecular-aspects-of-allergens-in-atopic-dermatitis
#19
Raffaela Campana, Sheron Dzoro, Irene Mittermann, Elena Fedenko, Olga Elisyutina, Musa Khaitov, Alexander Karaulov, Rudolf Valenta
PURPOSE OF REVIEW: Molecular allergology uses pure, mainly recombinant and structurally defined allergen molecules and allergen-derived epitopes to study mechanisms of IgE-associated allergy, to diagnose, and even predict the development of allergic manifestations and to treat and prevent IgE-associated allergies. Atopic dermatitis, a chronic inflammatory skin disease is almost always associated with IgE sensitization to allergens. However, also non-IgE-mediated pathomechanisms seem to be operative in atopic dermatitis and it is often difficult to identify the disease-causing allergens...
August 2017: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28606784/an-economic-analysis-of-a-peanut-oral-immunotherapy-study-in-children
#20
Marcus S Shaker
BACKGROUND: Peanut oral immunotherapy (POIT) decreases the probability of accidental recurrent systemic reactions but reactions from the therapy itself are frequent. OBJECTIVE: The purpose of this economic analysis was to characterize the potential cost-effectiveness of POIT. METHODS: Cohort simulations were used to evaluate the effect of POIT for children with peanut allergy. A POIT with probiotic was used in the base-case simulation and long-term survival was modeled using age-adjusted mortality together with the risk of food allergy-associated mortality...
June 9, 2017: Journal of Allergy and Clinical Immunology in Practice
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