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allergy immunology

Neha M Sahasrabudhe, Martin Beukema, Lingmin Tian, Berit Troost, Jan Scholte, Erik Bruininx, Geert Bruggeman, Marco van den Berg, Anton Scheurink, Henk A Schols, Marijke M Faas, Paul de Vos
Dietary carbohydrate fibers are known to prevent immunological diseases common in Western countries such as allergy and asthma but the underlying mechanisms are largely unknown. Until now beneficial effects of dietary fibers are mainly attributed to fermentation products of the fibers such as anti-inflammatory short-chain fatty acids (SCFAs). Here, we found and present a new mechanism by which dietary fibers can be anti-inflammatory: a commonly consumed fiber, pectin, blocks innate immune receptors. We show that pectin binds and inhibits, toll-like receptor 2 (TLR2) and specifically inhibits the proinflammatory TLR2-TLR1 pathway while the tolerogenic TLR2-TLR6 pathway remains unaltered...
2018: Frontiers in Immunology
A Gülsen, U Jappe
We describe a case of a woman who developed three separate episodes of urticaria and ana-phylaxis during exercise after consuming an apple, with immunological evidence that nonspecific lipid transfer proteins (LTP) may have been responsible for these reactions. LTP sensitivity can cause life-threatening allergies and anaphylaxis. Although LTP sensitization is common in Mediterranean countries, the frequency of knowledge and diagnoses is increasing in Europe. Despite the geographic differences, LTP allergy should be kept on sight when facing severe anaphylaxis after consuming LTP-included food...
March 2, 2018: European Annals of Allergy and Clinical Immunology
Amy M Scurlock, Stacie M Jones
Advances in food allergy diagnosis, management, prevention and therapeutic interventions have been significant over the past two decades. Evidence based national and international guidelines have streamlined food allergy diagnosis and management, while paradigm shifting work in primary prevention of peanut allergy has resulted in significant modifications in the approach to early food introduction in infants and toddlers. Innovative investigation of food allergy epidemiology, systems biology, impact, and management has provided important insights...
March 7, 2018: Journal of Allergy and Clinical Immunology
S Gayam, Z Zinn, M Chelliah, J Teng
Food allergy is common and the prevalence is increasing. The pathogenesis of food allergy has been extensively reviewed. Immunologic and clinical tolerance to food requires production of regulatory T cells that are food-antigen specific. Loss of tolerance to food can lead to IgE-mediated reactions and non-IgE-mediated reactions. This article is protected by copyright. All rights reserved.
March 10, 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
Kemal Sasaki, Tomoko Nakagawa, Shiro Sugiura, Motohiro Ebisawa, Komei Ito
BACKGROUND: The unintentional usage of adrenaline auto-injectors may cause injury to caregivers or patients. To prevent such incidents, we assessed the causative factors of these incidents. METHODS: The Anaphylaxis Working Group of the Japanese Society of Pediatric Allergy and Clinical Immunology requested that society members register cases in which adrenaline auto-injectors were unintentionally used. One hundred cases were reported from June 2015 to March 2016...
March 5, 2018: Allergology International: Official Journal of the Japanese Society of Allergology
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
Takashi Kei Kishimoto, Roberto A Maldonado
Antigen-specific immune tolerance has been a long-standing goal for immunotherapy for the treatment of autoimmune diseases and allergies and for the prevention of allograft rejection and anti-drug antibodies directed against biologic therapies. Nanoparticles have emerged as powerful tools to initiate and modulate immune responses due to their inherent capacity to target antigen-presenting cells (APCs) and deliver coordinated signals that can elicit an antigen-specific immune response. A wide range of strategies have been described to create tolerogenic nanoparticles (tNPs) that fall into three broad categories...
2018: Frontiers in Immunology
Paraskevi Xepapadaki, Claus Bachert, Susetta Finotto, Tuomas Jartti, George N Konstantinou, Alexander Kiefer, Marek Kowalski, Anna Lewandowska-Polak, Heikki Lukkarinen, Eirini Roumpedaki, Anna Sobanska, Ina Sintobin, Tytti Vuorinen, Nan Zhang, Theodor Zimmermann, Nikolaos G Papadopoulos
BACKGROUND: The PreDicta cohort was designed to prospectively evaluate wheeze/asthma persistence in preschoolers in association to viral/microbial exposures and immunological responses. We present the cohort design, demographic/disease characteristics and evaluate unsupervised and predefined phenotypic subgroups at inclusion. METHODS: PreDicta is a 2-year prospective study conducted in five European regions, including children 4-6 years with a diagnosis of asthma as cases and healthy age-matched controls...
March 7, 2018: Pediatric Allergy and Immunology
Zbigniew Bartuzi, Maciej Kaczmarski, Mieczysława Czerwionka-Szaflarska, Teresa Małaczyńska, Aneta Krogulska
The paper concerns the current position of the Polish Society of Allergology Food Allergy Section on the diagnosis and management of food allergies. The aim of this position is to provide evidence-based recommendations on the diagnosis and management of patients with allergic hypersensitivity to foods. This position statement includes a systematic review of studies in three areas, namely, the epidemiology, diagnosis and management of food allergies. While taking into account the specific Polish setting, in this publication we also used the current European Academy of Allergy and Clinical Immunology (EAACI) position paper and other current position statements, including those of the United States National Institute of Allergy and Infectious Diseases (NIAID)...
October 2017: Postȩpy Dermatologii i Alergologii
Bo Sun, Linnan Zhu, Yaling Tao, Hai-Xi Sun, Yang Li, Peng Wang, Yuzhu Hou, Yang Zhao, Xiaodong Zhang, Lianfeng Zhang, Ning Na, Yong Zhao
Neutrophils are involved in the pathogenesis of allergy. However, the contribution of the different functionally polarized neutrophils in allergy needs to be clarified. We sought to define the characteristics of interleukin (IL)-33-induced neutrophils and the involvement of this subset of polarized neutrophils in allergic pathogenesis. Freshly isolated neutrophils were treated with different cytokines and the cytokine expression levels were detected by real-time PCR. The gene expression profile of IL-33-induced neutrophils was determined by microarray assay...
March 5, 2018: Cellular & Molecular Immunology
Roberta Barachetti, Elisabetta Villa, Mario Barbarini
The introduction of solid food is necessary for any infant in order to provide adequate nutrition because when they grow up milk is insufficient for their nutritional needs. Infants born preterm have increased nutritional requirements. The high nutrient demands as well as the organ immaturity of preterm infants combine to render it difficult to achieve dietary intakes that will allow preterm infants to match their in utero growth rates. Current guidelines for the introduction of solid food to term infants cannot be directly translated to preterm infants...
December 22, 2017: La Pediatria Medica e Chirurgica: Medical and Surgical Pediatrics
Sawsan Sudqi Said, Guliz Tuba Barut, Nesteren Mansur, Asli Korkmaz, Ayca Sayi-Yazgan
Regulatory B cells (Bregs) play a crucial role in immunological tolerance primarily through the production of IL-10 in many diseases including autoimmune disorders, allergy, infectious diseases, and cancer. To date, various Breg subsets with overlapping phenotypes have been identified. However, the roles of Bregs in Helicobacter infection are largely unknown. In the present study, we investigate the phenotype and function of Helicobacter -stimulated B cells. Our results demonstrate that Helicobacter felis -stimulated IL-10- producing B cells (Hfstim - IL-10+ B) are composed of B10 and Transitional 2 Marginal Zone Precursor (T2-MZP) cells with expression of CD9, Tim-1, and programmed death 1 (PD-1)...
February 26, 2018: Molecular Immunology
Nao Sakurai, Shunsuke Nishio, Yuka Akiyama, Shinji Miyata, Kenzi Oshima, Daita Nadano, Tsukasa Matsuda
Casein is the major milk protein to nourish infants but, in certain population, it causes cow's milk allergy, indicating the uptake of antigenic casein and their peptides through the intestinal epithelium. Using human intestinal Caco-2 cell monolayers, the apical-to-basal transepithelial transport of casein was investigated. Confocal microscopy using component-specific antibodies showed that αs1-casein antigens became detectable as punctate signals at the apical-side cytoplasm and reached to the cytoplasm at a tight-junction level within a few hours...
February 27, 2018: Journal of Biochemistry
Daniel Martinho-Dias, Bernardo Sousa-Pinto, Júlio Botelho-Souza, António Soares, Luís Delgado, João Almeida Fonseca
We performed a MeSH term-based bibliometric analysis aiming to assess the publication trends of EAACI journals, namely Allergy, Pediatric Allergy and Immunology (PAI) (from 1990 to 2015) and Clinical and Translational Allergy (CTA) (from its inception in 2011 to 2015). We also aimed to discuss the impact of the creation of CTA in the publication topics of Allergy and PAI. We analysed a total of 1973 articles and 23,660 MeSH terms. Most MeSH terms in the three journals fell in the category of "basic immunology and molecular biology" (BIMB)...
2018: Clinical and Translational Allergy
S J Schep, R E G Schutgens, K Fischer, M L Boes
At first sight the bleeding disorder hemophilia A seems to have little in common with immune disorders, but immunology research intersects with other disciplines including hematology. Nowadays, the most important complication in the treatment of hemophilia A is the development of neutralizing antibodies (inhibitors) against exogenous administered factor VIII (FVIII), which occurs in approximately 30% of all patients with severe hemophilia A. This antibody response renders FVIII replacement therapy ineffective, thereby increasing the risk for uncontrollable bleeding and morbidity, decreasing quality of life and increasing healthcare costs...
February 15, 2018: Blood Reviews
Morgan Ye, Marcella Warner, Paolo Mocarelli, Paolo Brambilla, Brenda Eskenazi
BACKGROUND: 2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) is a toxic environmental contaminant that can bioaccumulate in humans, cross the placenta, and cause immunological effects in children, including altering their risk of developing allergies. On July 10, 1976, a chemical explosion in Seveso, Italy, exposed nearby residents to a high amount of TCDD. In 1996, the Seveso Women's Health Study (SWHS) was established to study the effects of TCDD on women's health. Using data from the Seveso Second Generation Health Study, we aim to examine the effect of prenatal exposure to TCDD on the risk of atopic conditions in SWHS children born after the explosion...
February 27, 2018: Environmental Health: a Global Access Science Source
Inmaculada Hernandez, Samuel W Bott, Anish S Patel, Collin G Wolf, Alexa R Hospodar, Shivani Sampathkumar, William H Shrank
OBJECTIVES: The rising prices of specialty drugs have prompted a debate about how medications are priced. With the average price of cancer drugs doubling in the last decade, the unsustainability of drug prices is especially concerning in oncology and hematology. The objective of this study was to compare the prices of monoclonal antibodies (mAbs) approved in the last 20 years by the FDA across disease states. STUDY DESIGN: We identified all indications approved by the FDA for mAbs from 1997 to 2016 and calculated the annual price of 1-year treatment for each mAb-indication combination as the product of the US average wholesale price per milligram and the recommended dose...
February 2018: American Journal of Managed Care
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
Marisa Rosimeire Ribeiro, Antonio Abílio Motta, Luiz Augusto Marcondes-Fonseca, Jorge Kalil-Filho, Pedro Giavina-Bianchi
OBJECTIVE: To assess the risk factors, incidence and severity of adverse drug reactions in in-patients. METHODS: This prospective study evaluated 472 patients treated at a teaching hospital in Brazil between 2010 and 2013 by five medical specialties: Internal Medicine, General Surgery, Geriatrics, Neurology, and Clinical Immunology and Allergy. The following variables were assessed: patient age, gender, comorbidities, family history of hypersensitivity, personal and family history of atopy, number of prescribed drugs before and during hospitalization, hospital diagnoses, days of hospitalization...
2018: Clinics
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