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https://www.readbyqxmd.com/read/27907922/distinct-contributory-factors-determine-basophil-allergen-sensitivity-in-grass-pollen-rhinitis-and-in-anaphylactic-wasp-venom-allergy
#1
Peter Korošec, Mira Šilar, Peter Kopač, Renato Eržen, Mihaela Zidarn, Mitja Košnik
BACKGROUND: We sought to determine whether basophil-allergen sensitivity could be transferred to donor basophils by passive IgE sensitisation in allergic rhinitis and anaphylactic Hymenoptera venom hypersensitivity. METHODS: We studied 15 wasp venom-, 19 grass pollen- and 2 house dust mite-allergic patients, 2 healthy donors, and 8 wasp venom-allergic donors. In all subjects, we first evaluated the initial basophil response to wasp venom, grass pollen, or house dust mite allergen...
December 2, 2016: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/27891156/usefulness-of-component-resolved-analysis-of-cat-allergy-in-routine-clinical-practice
#2
Katharina Eder, Sven Becker, Marion San Nicoló, Alexander Berghaus, Moritz Gröger
BACKGROUND: Cat allergy is of great importance, and its prevalence is increasing worldwide. Cat allergens and house dust mite allergens represent the major indoor allergens; however, they are ubiquitous. Cat sensitization and allergy are known risk factors for rhinitis, bronchial hyperreactivity and asthma. Thus, the diagnosis of sensitization to cats is important for any allergist. METHODS: 70 patients with positive skin prick tests for cats were retrospectively compared regarding their skin prick test results, as well as their specific immunoglobulin E antibody profiles with regard to their responses to the native cat extract, rFel d 1, nFel d 2 and rFel d 4...
2016: Allergy, Asthma, and Clinical Immunology
https://www.readbyqxmd.com/read/27888643/correlation-between-the-number-of-allergen-sensitizations-and-immunoglobulin-e-monosensitization-vs-polysensitization
#3
Jacob E Kuperstock, Christopher D Brook, Matthew W Ryan, Michael P Platt
BACKGROUND: The purpose of this study was to determine if total serum immunoglobulin E (IgE) could predict monosensitization compared to polysensitization in patients with allergic rhinitis (AR). METHODS: This was a retrospective study of a cohort of 1073 patients who underwent allergy testing. Differences in total IgE level between unsensitized, monosensitized, and polysensitized subjects were calculated. Pearson correlation coefficient was calculated to determine whether there was a relationship between total IgE level and the number of positive allergen sensitizations...
November 26, 2016: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/27826964/comorbidities-and-phenotypes-of-rhinitis-in-korean-children-and-adolescents-a-cross-sectional-multicenter-study
#4
Kyung Suk Lee, Hye Yung Yum, Youn Ho Sheen, Yong Mean Park, Yong Ju Lee, Bong Seok Choi, Hye Mi Jee, Sun Hee Choi, Hyun Hee Kim, Yang Park, Hyo Bin Kim, Yeong Ho Rha
PURPOSE: Rhinitis is a nasal inflammatory disease in children and adolescents. However, little is known about the phenotypes and characteristics of allergic rhinitis (AR) in Korean children and adolescents. The objective of this study was to analyze the symptoms and comorbidities of rhinitis, to compare AR to non-allergic rhinitis (NAR), and to reveal the phenotypes and features of AR in a Korean pediatric population. METHODS: Patients under 18 years of age with rhinitis symptoms were recruited from January 2013 to January 2015 by pediatric allergists...
January 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/27820923/the-proinflammatory-potential-of-nitrogen-dioxide-and-its-influence-on-the-house-dust-mite-allergen-der-p-1
#5
Christian Koehler, Michael Paulus, Christian Ginzkey, Stephan Hackenberg, Agmal Scherzad, Pascal Ickrath, Rudolf Hagen, Norbert Kleinsasser
Asthma and allergies are both major global health problems with an increasing prevalence, and environmental data implicate an influence of air pollutants on their development. The present study focuses on the influence of nitrogen dioxide (NO2) and the major allergen of the house dust mite Der p 1 on human nasal epithelial cells of nonallergic patients in vitro. Nasal epithelial mucosa samples of 11 donors were harvested during nasal air passage surgery and cultured as an air-liquid interface. Exposure to 0...
2016: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/27817798/advances-in-rhinitis-and-rhinosinusitis-in-2015
#6
REVIEW
Claus Bachert, Elien Gevaert
The last year has seen great progress in the understanding of upper airway disease and in its management. For allergic rhinitis, authors focused on the prediction of and effect on the natural course of disease. New evidence was published for the disease-modifying effect of allergen immunotherapy in terms of avoidance of new sensitizations and prevention of asthma in either randomized or real-life studies. Specifically, for patients with house dust mite allergies, which are often underestimated and difficult to diagnose, the efficacy of SQ house dust mite sublingual immunotherapy tablets has been demonstrated in patients with allergic rhinitis and asthma...
November 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27799959/predictors-of-allergen-sensitization-in-singapore-children-from-birth-to-3%C3%A2-years
#7
Evelyn Xiu Ling Loo, Jordan Zheng Ting Sim, Anne Goh, Oon Hoe Teoh, Yiong Huak Chan, Seang Mei Saw, Kenneth Kwek, Peter D Gluckman, Keith M Godfrey, Hugo Van Bever, Yap Seng Chong, Bee Wah Lee, Michael S Kramer, Lynette Pei-Chi Shek
BACKGROUND: Immune responses in allergic diseases begin with allergen sensitization, which usually occurs in childhood. Allergen sensitization involves a complex interplay of genetic and environmental factors, and sensitization patterns may change with age. OBJECTIVE: To determine the predictors of allergen sensitization in the first 3 years of life in the growing up in Singapore towards healthy outcomes (GUSTO) prospective birth cohort study. METHODS: Interviewers collected information on demographics, family history of allergy, social and lifestyle factors, and the child's health...
2016: Allergy, Asthma, and Clinical Immunology
https://www.readbyqxmd.com/read/27797959/hookworm-recombinant-protein-promotes-regulatory-t-cell-responses-that-suppress-experimental-asthma
#8
Severine Navarro, Darren A Pickering, Ivana B Ferreira, Linda Jones, Stephanie Ryan, Sally Troy, Andrew Leech, Peter J Hotez, Bin Zhan, Thewarach Laha, Roger Prentice, Tim Sparwasser, John Croese, Christian R Engwerda, John W Upham, Valerie Julia, Paul R Giacomin, Alex Loukas
In the developed world, declining prevalence of some parasitic infections correlates with increased incidence of allergic and autoimmune disorders. Moreover, experimental human infection with some parasitic worms confers protection against inflammatory diseases in phase 2 clinical trials. Parasitic worms manipulate the immune system by secreting immunoregulatory molecules that offer promise as a novel therapeutic modality for inflammatory diseases. We identify a protein secreted by hookworms, anti-inflammatory protein-2 (AIP-2), that suppressed airway inflammation in a mouse model of asthma, reduced expression of costimulatory markers on human dendritic cells (DCs), and suppressed proliferation ex vivo of T cells from human subjects with house dust mite allergy...
October 26, 2016: Science Translational Medicine
https://www.readbyqxmd.com/read/27793411/evolution-and-predictive-value-of-ige-responses-toward-a-comprehensive-panel-of-house-dust-mite-allergens-during-the-first-2%C3%A2-decades-of-life
#9
Daniela Posa, Serena Perna, Yvonne Resch, Christian Lupinek, Valentina Panetta, Stephanie Hofmaier, Alexander Rohrbach, Laura Hatzler, Linus Grabenhenrich, Olympia Tsilochristou, Kuan-Wei Chen, Carl-Peter Bauer, Ute Hoffman, Johannes Forster, Fred Zepp, Antje Schuster, Ulrich Wahn, Thomas Keil, Susanne Lau, Susanne Vrtala, Rudolf Valenta, Paolo Maria Matricardi
BACKGROUND: The evolution of the IgE response to the numerous allergen molecules of Dermatophagoides pteronyssinus is still unknown. OBJECTIVES: We sought to characterize the evolutionary patterns of the IgE response to 12 molecules of D pteronyssinus from birth to adulthood and to investigate their determinants and clinical relevance. METHODS: We investigated the clinical data and sera of 722 participants in the German Multicenter Allergy Study, a birth cohort started in 1990...
October 19, 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27780790/association-between-hla-genes-and-dust-mite-sensitivity-in-a-brazilian-population
#10
Marcela Caleffi da Costa Lima Caniatti, Sueli Donizete Borelli, Ana Lúcia Falavigna Guilherme, Luiza Tamie Tsuneto
BACKGROUND: Type I hypersensitivity, also known as IgE-mediated allergy, is a complex, multifactorial condition whose onset and severity are influenced by both genetic and environmental factors. Mite allergens stimulate the production of humoral response (IgE), especially in children, which is closely involved in atopic asthma and rhinitis. OBJECTIVE: This study aimed to investigate the association between HLA class I (-A, -B, and -C), and HLA class II (-DRB1) genes in individuals sensitive to dust mites (Dermatophagoides farinae, Dermatophagoides pteronyssinus, or Blomia tropicalis) and mite-insensitive controls...
October 22, 2016: Human Immunology
https://www.readbyqxmd.com/read/27780179/musculoskeletal-complaints-while-growing-up-from-age-11-to-age-14-the-piama-birth-cohort-study
#11
H Susan J Picavet, Nina Berentzen, Ninotsjka Scheuer, Raymond W J G Ostelo, Bert Brunekreef, Henriette A Smit, Alet Wijga
For musculoskeletal complaints (MSCs) among adults, several risk factors are known, but the most important determinant is an earlier episode of MSCs. Research has shifted to younger ages, showing a high prevalence of MSCs among children and adolescents. Our purpose was to evaluate the prevalence of MSCs among those growing up from age 11 to 14 and to explore the role of several sociodemographic, growth and development, psychosocial, and lifestyle factors. Data collected at age 11 (n = 2651) and age 14 (n = 2522) in the ongoing Dutch Prevention and Incidence of Asthma and Mite Allergy (PIAMA) birth cohort study were used...
December 2016: Pain
https://www.readbyqxmd.com/read/27779810/trpa1-gene-polymorphisms-and-childhood-asthma
#12
Valentina Gallo, F Nicole Dijk, John W Holloway, Susan M Ring, Gerard H Koppelman, Dirkje S Postma, David P Strachan, Raquel Granell, Johan C de Jongste, Vincent W V Jaddoe, Herman T den Dekker, Liesbeth Duijts, A John Henderson, Seif O Shaheen
BACKGROUND: Animal data have suggested that the transient receptor potential ankyrin-1 (TRPA1) ion channel plays a key role in promoting airway inflammation in asthma and may mediate effects of paracetamol on asthma, yet confirmatory human data are lacking. To study associations of TRPA1 gene variants with childhood asthma and total IgE concentration, and interactions between TRPA1 and prenatal paracetamol exposure on these outcomes. METHODS: We analysed associations between 31 TRPA1 single nucleotide polymorphisms (SNPs) and current doctor-diagnosed asthma and total IgE concentration at 7...
October 25, 2016: Pediatric Allergy and Immunology
https://www.readbyqxmd.com/read/27779146/variables-affecting-interpretation-of-skin-prick-test-results
#13
Suhan G Nasti Topal, Bilge Fettahlıoğlu Karaman, Varol L Aksungur
BACKGROUND: Both performer- and device-dependent variabilities have been reported in sizes of wheal responses to skin prick tests. OBJECTIVE: We aimed to evaluate whether or not variabilities in sizes of wheal responses influence the final interpretation of skin prick tests; in other words, the decision on whether or not there is an allergy to a given antigen. METHODS: Skin prick tests with positive and negative controls and extracts of Dermatophagoides farinae and Dermatophagoides pteronyssinus were done for 69 patients by two different persons, using two different puncturing devices- disposable 22-gauge hypodermic needles and metal lancets...
October 24, 2016: Indian Journal of Dermatology, Venereology and Leprology
https://www.readbyqxmd.com/read/27773482/regulatory-t-cell-specificity-directs-tolerance-versus-allergy-against-aeroantigens-in-humans
#14
Petra Bacher, Frederik Heinrich, Ulrik Stervbo, Mikalai Nienen, Marco Vahldieck, Christina Iwert, Katrin Vogt, Jutta Kollet, Nina Babel, Birgit Sawitzki, Carsten Schwarz, Stefan Bereswill, Markus M Heimesaat, Guido Heine, Gabriele Gadermaier, Claudia Asam, Mario Assenmacher, Olaf Kniemeyer, Axel A Brakhage, Fátima Ferreira, Michael Wallner, Margitta Worm, Alexander Scheffold
FOXP3+ regulatory T cells (Tregs) maintain tolerance against self-antigens and innocuous environmental antigens. However, it is still unknown whether Treg-mediated tolerance is antigen specific and how Treg specificity contributes to the selective loss of tolerance, as observed in human immunopathologies such as allergies. Here, we used antigen-reactive T cell enrichment to identify antigen-specific human Tregs. We demonstrate dominant Treg-mediated tolerance against particulate aeroallergens, such as pollen, house dust mites, and fungal spores...
October 18, 2016: Cell
https://www.readbyqxmd.com/read/27753449/cross-sectional-study-on-allergic-sensitization-of-austrian-adolescents-using-molecule-based-ige-profiling
#15
Teresa Stemeseder, Eva Klinglmayr, Stephanie Moser, Lisa Lueftenegger, Roland Lang, Martin Himly, Gertie J Oostingh, Joerg Zumbach, Arne C Bathke, Thomas Hawranek, Gabriele Gadermaier
BACKGROUND: Allergen specific IgE antibodies are a hallmark of type I allergy. The aim of this cross-sectional study was to analyze the sensitization profiles of an Austrian adolescent population utilizing molecule-based IgE diagnosis. METHODS: Serum samples of 501 non-selected pupils from Salzburg, Austria, were tested in ImmunoCAP ISAC(®) for IgE reactivity to 112 single allergens. Sensitization profiles were assessed and statistically coordinated with reported allergies...
October 18, 2016: Allergy
https://www.readbyqxmd.com/read/27748932/mimotope-identification-of-dust-mite-allergen-der-f-5-using-phage%C3%A2-displayed-random-peptide-libraries
#16
Yubao Cui, Lili Yu, Ying Zhou, Li Yang, Chengbo Zhang
Mimotope mapping enables the characterization of allergen epitopes for the development of diagnostic and therapeutic approaches. In the present study, a phage display peptide library was used for mimotope mapping based on the binding of antibodies against the recombinant group 5 allergen from the house dust mite Dermatophagoides farinae (Der f 5), an arthropod that causes indoor allergies worldwide. When three monoclonal anti‑Der f 5 antibodies were used for biopanning, seven mimotopes were identified. Their common subsequence was '‑‑‑[‑A][‑T]W[‑S]H[HSFW][LM][PSKR] [TLV][AST]‑[DP][‑L]‑'...
October 13, 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27708552/burden-of-allergic-respiratory-disease-a-systematic-review
#17
A Linneberg, K Dam Petersen, J Hahn-Pedersen, E Hammerby, N Serup-Hansen, N Boxall
This meta-analysis compared the health-related quality of life (HRQL) of patients with allergic rhinitis (AR) and/or allergic asthma (AA) caused by perennial house dust mite (HDM) versus AR and/or AA caused by seasonal pollen allergy. Following a systematic search, the identified studies used the disease-specific rhinitis quality of life questionnaire or generic instruments (SF-36 and SF-12). Summary estimates obtained by meta-analysis showed that HRQL in patients with perennial HDM allergy was significantly worse than that of patients with seasonal pollen allergy, when measured by both disease-specific and generic HRQL instruments, and was reflected by an impact on both physical and mental health...
2016: Clinical and Molecular Allergy: CMA
https://www.readbyqxmd.com/read/27699687/detection-of-allergen-sources-in-the-homes-of-sensitized-children
#18
Clara R Álvarez-Chávez, José L Flores-Bernal, Javier Esquer-Peralta, Nora E Munguía-Vega, María A G Corella-Madueño, Antonio Rascón-Careaga, David Turcotte, Luis E Velázquez-Contreras
OBJECTIVE: To identify the presence of environmental factors linked to the onset of allergies and asthma in the homes of children participating in an early detection program that were identified with sensitivity to common allergens in the region of Sonora, Mexico. METHODS: A walkthrough assessment was carried out in the homes of sensitized children; the research tools were the questionnaire and environmental checklist proposed by the Lowell Healthy Homes Program of the University of Massachusetts-Lowell...
November 2016: Environmental Health and Preventive Medicine
https://www.readbyqxmd.com/read/27684489/immunoproteomic-analysis-of-house-dust-mite-antigens-reveals-distinct-classes-of-dominant-t-cell-antigens-according-to-function-and-serological-reactivity
#19
Carla Oseroff, Lars H Christensen, Luise Westernberg, John Pham, Jerome Lane, Sinu Paul, Jason Greenbaum, Thomas Stranzl, Gitte Lund, Ilka Hoof, Jens Holm, Peter A Würtzen, Kåre H Meno, April Frazier, Veronique Schulten, Peter S Andersen, Bjoern Peters, Alessandro Sette
BACKGROUND: House dust mite (HDM) allergens are a common cause of allergy and allergic asthma. A comprehensive analysis of proteins targeted by T cells, which are implicated in the development and regulation of allergic disease independent of their antibody reactivity, is still lacking. OBJECTIVE: To comprehensively analyze the HDM-derived protein targets of T cell responses in HDM-allergic individuals, and investigate their correlation with IgE/IgG responses and protein function...
September 29, 2016: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27682154/analysis-of-the-impact-of-allergy-and-atopy-on-new-onset-of-uveitis
#20
Rafael S Grajewski, Niusha Barahmand Pour, Katja Burian, Albert Caramoy, Bernd Kirchhof, Claus Cursiefen, Ludwig M Heindl
PURPOSE: The inappropriate immune response to harmless foreign and self-antigens is a common feature of allergy, atopy and autoimmune disease. The influence of environmental factors in the initiation of autoimmunity is not well understood. It is conceivable that immune responses to allergens may also serve as a trigger of bystander immune reactions, including autoimmunity such as uveitis. Therefore, we wanted to investigate the prevalence of allergies and atopy in patients with different types of uveitis in comparison to a control cohort...
September 29, 2016: Acta Ophthalmologica
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