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Egg allergy

Mery Munoz-Persy, Alfredo J Lucendo
Eosinophilic esophagitis (EoE) is a unique form of non-IgE-mediated food allergy characterized by esophageal eosinophilic infiltration that commonly causes dysphagia and food impaction in children and adolescents. Assessing the efficacy of dietary restrictions or drug therapies to achieve clinical and histologic resolution of EoE through randomized controlled trials and meta-analyses has resulted in new evidence-based guidelines. Avoiding food triggers is the only therapy targeting the cause of the disease...
March 17, 2018: European Journal of Pediatrics
Jarkko Mäntylä, Tuuli Thomander, Auli Hakulinen, Kaarina Kukkonen, Kati Palosuo, Helena Voutilainen, Anna Pelkonen, Paula Kauppi
INTRODUCTION: The standard care of severe food allergy in both adults and children means avoidance of allergens. In recent years promising results of oral immunotherapy (OIT) have been reported in children. In adults, information on OIT in severe food allergy is very limited. OBJECTIVE: We aimed to study if OIT is possible in adults. METHODS: We report OIT results in 10 adult patients with milk OIT, nine adult patients with peanut OIT, and four adult patients with egg OIT...
March 15, 2018: Immunity, Inflammation and Disease
Nissreen E ELBadawy, Randa S Abdel-Latif
Specific immunotherapy (SIT) is one of the important lines for the treatment of food allergy. Efficacy tests for clinical response to SIT are limited and subjective. In this study, we aimed to evaluate the validity of food specific Ig E levels as a biomarker of clinical improvement in children with food allergy treated with oral immunotherapy (OIT). We analysed 184 children with food allergy, 143 had undergone 2 years of food OIT and 41 were on allergen restricted diet and considered as control. All patients were subjected to Double-Blind Placebo-Controlled Food Challenge test (DBPCFC), allergic symptom score calculation, and serum food specific Ig E level before and after oral immunotherapy for treated patients and after 2 year of allergen restricted diet for the control group...
June 2017: Egyptian Journal of Immunology
Matthew Greenhawt, Edmond S Chan, David M Fleischer, Allison Hicks, Rachel Wilson, Marcus Shaker, Carina Venter, David Stukus
BACKGROUND: Recent guidelines recommend early peanut introduction (EPI) beginning around 4-6 months in infants with either severe eczema and/or egg allergy, and around 6 months for all other infants. Caregiver preferences for such practices are unkown. METHODS: We explored preferences for EPI and in-office allergy risk assessment (IRA) through a nationally-representative survey of expecting (n=1000) and new caregivers of infants < 1 year (n=1000). RESULTS: Among a primarily female (99...
March 7, 2018: Annals of Allergy, Asthma & Immunology
Javier Molina-Infante, Alfredo J Lucendo
Eosinophilic esophagitis (EoE) is a chronic, immune-mediated, esophageal disease triggered predominantly, but not excusively, by food antigens. Presently, available food allergy tests are suboptimal to predict food triggers for EoE, especially in adults. Elemental diet (exclusive feeding with aminoacid-based formulas) and empiric six-food elimination diet (6-FED; withdrawing milk, wheat, egg, soy, nuts and fish/seafood for 6 weeks), have consistently shown the best efficacy rates. However, their high level of restriction and need for multiple endoscopies have hampered their implementation in clinical practice...
March 6, 2018: Journal of Allergy and Clinical Immunology
Kenji Matsumoto, Rintaro Mori, Celine Miyazaki, Yukihiro Ohya, Hirohisa Saito
No abstract text is available yet for this article.
March 6, 2018: Journal of Allergy and Clinical Immunology
M Cecilia Berin, Alexander Grishin, Madhan Masilamani, Donald Y Leung, Scott H Sicherer, Stacie M Jones, A Wesley Burks, Alice K Henning, Peter Dawson, Joanna Grabowska, Charuta Agashe, Wendy F Davidson, Robert A Wood, Hugh A Sampson
BACKGROUND: Egg allergy is phenotypically heterogeneous. A subset of egg allergic individuals can tolerate egg in an extensively heated form. Inclusion of baked-egg (BE) into their diet accelerates resolution of egg allergy. Conversely, BE reactivity is associated with persistent disease. The immune basis of this clinical heterogeneity is unknown. OBJECTIVES: To study egg-specific antibody, basophil, and T cell responses in children with reactivity or tolerance to BE...
March 5, 2018: Journal of Allergy and Clinical Immunology
Julia Upton, Anna Nowak-Wegrzyn
Baked milk (BM) and baked egg (BE) diets are increasingly used in the management of milk and egg allergy, rather than avoidance. Children with tolerance versus reactivity to BM and BE may have smaller skin prick test and lower specific IgE, and BM-tolerant children have less basophil reactivity and more peripheral T regulatory cells. However, most milk- and egg-allergic children tolerate BM and BE and an individual's reactivity is unpredictable. Non-reactivity is due to conformational changes in the allergens...
March 8, 2018: Clinical Reviews in Allergy & Immunology
Joseph E Igetei, Marwa El-Faham, Susan Liddell, Gabriele Schramm, Michael J Doenhoff
Previous studies have shown that schistosome infection can protect against allergic symptoms, but the underlying mechanisms are still not fully understood. Here we have shown that rabbit IgG antibodies raised against Schistosoma mansoni soluble egg antigens (SmSEA) are cross-reactive with a wide array of molecules in Timothy grass pollen (TGP) and birch tree pollen (BTP). Five of the cross-reactive pollen molecules (two from TGP and three from BTP) were selected randomly and identified by tandem mass spectrometric (TMS) analysis to be, respectively, the TGP allergens Phl p 1 and Phl p 5b, and BTP glutathione S-transferase (GST), and the BTP allergens Bet v 1 and Bet v 6...
March 3, 2018: International Journal for Parasitology
Alba Pablos-Tanarro, Daniel Lozano-Ojalvo, Elena Molina, Rosina López-Fandiño
This work aimed to assess the contribution of the major egg white proteins, ovalbumin, ovomucoid and lysozyme, to the induction and elicitation of allergenic responses. For this purpose, BALB/c mice were orally administered either the individual egg allergens or a mixture of the three proteins in the same proportion, in order to evaluate their relative allergenicity avoiding their different abundance in egg white. Cholera toxin was used as a Th2-polarizing adjuvant. Ovomucoid and lysozyme triggered the most severe anaphylaxis reactions upon oral challenge...
March 1, 2018: Journal of Agricultural and Food Chemistry
Xin Liu, Xiumei Hong, Hui-Ju Tsai, Karen K Mestan, Min Shi, Amira Kefi, Ke Hao, Qi Chen, Guoying Wang, Deanna Caruso, Hua Geng, Yufeng Gao, Jianlin He, Rajesh Kumar, Hongjian Wang, Yunxian Yu, Tami Bartell, Xiao-Di Tan, Robert P Schleimer, Daniel E Weeks, Jacqueline A Pongracic, Xiaobin Wang
Previous genetic studies of food allergy (FA) have mainly focused on inherited genotypic effects. The role of parental genotypic effects remains largely unexplored. Leveraging existing genome-wide association study (GWAS) data generated from the Chicago Food Allergy Study, we examined maternal genotypic and parent-of-origin (PO) effects using multinomial likelihood ratio tests in 588 complete and incomplete Caucasian FA trios. We identified 1 single nucleotide polymorphism with significant (P < 5×10) maternal effect on any FA (rs4235235), which is located in a noncoding RNA (LOC101927947) with unknown function...
March 2018: Medicine (Baltimore)
Chao Ma, Naoko Higashi, Kyoko Ishiguro, Ying Zhao, Linkui Zhang, Chenwen Zhao, Maosheng Cheng, Hisae Oku
Linarinic acid, (-)-1,2,3,9-tetrahydropyrrolo[2,1-b]quinazoline-1-carboxylic acid (4a), was isolated from the ethanol extract of Linaria vulgaris Mill. In our previous study, a series of tetrahydropyrrolo[2,1-b]quinazoline derivatives 4b, 4c, 5a, 5b, 6a and 6b that were structurally related to 4a and evaluated as neuroprotective agents were synthesized. The aim of the present study was to investigate the novel features of these compounds. We examined their allergy-preventive effects using an in vivo assay system we developed previously, that monitors a decrease in blood flow in the tail vein of mice subjected to sensitization with hen egg-white lysozyme...
February 21, 2018: Journal of Natural Medicines
E García-Lirio, C Gonzalez Diaz, A Gonzalez Hermosa, P Gamboa, R Aranguren, M L Sanz
BACKGROUND: Oral immunotherapy (OIT) is a new approach in patients with food allergy. Various immunological mechanisms underlie the reversal of food allergy. In this paper, we study possible changes in peripheral cytokine patterns during OIT. METHODS: Determinations of cytokines in peripheral blood were made in children who had milk or egg allergy and who received OIT. The determinations were made before and after OIT, and again following a final repeat oral challenge a month after a diet excluding the culprit food...
2018: Journal of Investigational Allergology & Clinical Immunology
F Mori, C Angelucci, A Cianferoni, S Barni, G Indolfi, A Casini, G Mangone, M Materassi, N Pucci, C Azzari, E Novembre
BACKGROUND: Transplantation-acquired food allergies (TAFA) are frequently reported and considered to be caused by immunosuppressive therapy. The aim of this study was to investigate the allergic and immunologic responses in children who had liver or kidney transplantations. METHODS: Twelve children receiving liver transplantations and 10 children receiving kidney transplantations were investigated. All children underwent the allergy work-up and in most of them, lymphocyte screening and serum cytokine measurements were also performed...
February 15, 2018: Allergologia et Immunopathologia
Michael M McNeil, Frank DeStefano
Vaccine-associated hypersensitivity reactions are not infrequent; however, serious acute-onset, presumably IgE-mediated or IgG and complement-mediated anaphylactic or serious delayed-onset T cell-mediated systemic reactions are considered extremely rare. Hypersensitivity can occur because of either the active vaccine component (antigen) or one of the other components. Postvaccination acute-onset hypersensitivity reactions include self-limited localized adverse events and, rarely, systemic reactions ranging from urticaria/angioedema to full-blown anaphylaxis with multisystem involvement...
February 2018: Journal of Allergy and Clinical Immunology
A Alvarez-Perea, P Cabrera-Freitag, V Fuentes-Aparicio, S Infante, L Zapatero, J M Zubeldia
BACKGROUND: Food allergy heavily impairs quality of life. Avoiding the offending food requires extensive patient education. Social media have been proven a useful source of information for other chronic conditions. Our aim was to describe how pediatric patients with food allergy and their families are using social media. METHODS: We performed a cross-sectional study in the Pediatric Allergy Unit of a third-level hospital. Patients with food allergy were surveyed about their disease and the use of social media...
February 7, 2018: Journal of Investigational Allergology & Clinical Immunology
Helen A Brough, Inger Kull, Kerry Richards, Eva Hallner, Cilla Söderhäll, Abdel Douiri, Martin Penagos, Erik Melén, Anna Bergström, Victor Turcanu, Magnus Wickman, Gideon Lack
BACKGROUND: High household peanut consumption is associated with the development of peanut allergy, especially when peanut allergic cases are compared against atopic controls; thus environmental peanut exposure (EPE) may be a risk factor for peanut sensitization and allergy. In this study we explored the relationship between EPE and school-age peanut sensitization in a population based cohort. METHODS: Maternal bed-dust was collected postnatally and EPE was quantified using a polyclonal peanut ELISA...
February 6, 2018: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
Zhi Wan, Heather P Ostendorff, Ziying Liu, Lynda C Schneider, Kenneth J Rothschild, Mark J Lim
Multiplex serological immunoassays, such as implemented on microarray or microsphere-based platforms, provide greater information content and higher throughput, while lowering the cost and blood volume required. These features are particularly attractive in pediatric food allergy testing to facilitate high throughput multi-allergen analysis from finger- or heel-stick collected blood. However, the miniaturization and microfluidics necessary for creating multiplex assays make them highly susceptible to the "matrix effect" caused by interference from non-target agents in serum and other biofluids...
2018: PloS One
R A Fernandes, F Regateiro, C Pereira, E Faria, J Pita, A Todo-Bom, I Carrapatoso
Background. Anaphylaxis is an acute, potentially fatal, multi-organ allergic reac-tion. Our aim was to characterize the population with food induced anaphylaxis followed over a one-year period. Methods. Retrospective analysis of clinical files of patients with food anaphylaxis observed in our food allergy consultation during 2016. Results. Sixty-two patients were included. In the pediatric group, the implicated allergens were cow's milk, egg and fish and in the adults' group, the commonest allergens were nuts and wheat...
March 2018: European Annals of Allergy and Clinical Immunology
Yu Ting He, Paul J Christos, William R Reisacher
BACKGROUND: The pathogenesis of eosinophilic esophagitis (EoE) is currently unknown, but evidence suggests that allergic sensitization to food and airborne allergens may play a key role. This retrospective study examines the rate of sensitization to both food and airborne allergens in EoE patients, and compares their sensitivity patterns to control groups. METHODS: We identified 103 patients with a diagnosis of EoE via esophageal eosinophilia (≥15 eosinophils/high-power field [hpf]), who had undergone comprehensive food and/or airborne allergen testing through either skin or in vitro methods...
January 30, 2018: International Forum of Allergy & Rhinology
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