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Allergy

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https://www.readbyqxmd.com/read/28226401/natural-evolution-in-patients-with-non-steroidal-anti-inflammatory-drugs-induced-urticaria-angioedema
#1
Inmaculada Doña, Esther Barrionuevo, María Salas, José Antonio Cornejo-García, James R Perkins, Gádor Bogas, Ana Prieto, María José Torres
BACKGROUND: Non-steroidal anti-inflammatory drugs (NSAIDs) are the most frequent triggers of drug hypersensitivity with NSAIDs-induced urticaria/angioedema (NIUA) the most common phenotype. Loss of hypersensitivity has been reported for IgE-mediated reactions; however it has not been assessed in non-immunological reactions such as NIUA. We evaluated NSAID-hypersensitivity over time in NIUA patients. METHODS: Patients confirmed as NIUA by positive drug provocation test (DPT) with acetylsalicylic acid (ASA) during 2005-2012 (V1) were included (n=38)...
February 22, 2017: Allergy
https://www.readbyqxmd.com/read/28226398/dysregulation-of-interleukin-5-expression-in-familial-eosinophilia
#2
Senbagavalli Prakash Babu, Yun-Yun K Chen, Sandra Bonne-Annee, Jun Yang, Irina Maric, Timothy G Myers, Thomas B Nutman, Amy D Klion
BACKGROUND: Familial eosinophilia (FE) is a rare autosomal dominant inherited disorder characterized by the presence of lifelong peripheral eosinophilia (>1500/μL). Mapped to chromosome 5q31-q33, the genetic cause of FE is unknown, and prior studies have failed to demonstrate a primary abnormality in the eosinophil lineage. OBJECTIVE: The aim of the present study was to identify the cells driving the eosinophilia in FE. METHODS: Microarray analysis and real-time PCR were used to examine transcriptional differences in peripheral blood mononuclear cells (PBMC), and in purified cell subsets from affected and unaffected family members belonging to a single large kindred...
February 22, 2017: Allergy
https://www.readbyqxmd.com/read/28226397/innate-lymphoid-cells-in-asthma-cannabinoids-on-the-balance
#3
EDITORIAL
Kayluz Frias Boligan, Stephan von Gunten
The network of cells and soluble mediators implicated in the pathogenesis of asthma and allergic disorders is complex. Deciphering details of the crosstalk between its components is essential for the identification of novel drug targets and for advances in patient management and precision medicine (1, 2). There is increasing evidence that innate lymphoid cells (ILCs) contribute to allergic responses (3). This article is protected by copyright. All rights reserved.
February 22, 2017: Allergy
https://www.readbyqxmd.com/read/28213955/the-skin-barrier-function-gene-spink5-is-associated-with-challenge-proven-ige-mediated-food-allergy-in-infants
#4
Sarah E Ashley, Hern-Tze Tina Tan, Peter Vuillermin, Shyamali C Dharmage, Mimi L K Tang, Jennifer Koplin, Lyle C Gurrin, Adrian Lowe, Caroline Lodge, Anne-Louise Ponsonby, John Molloy, Pamela Martin, Melanie C Matheson, Richard Saffery, Katrina J Allen, Justine A Ellis, David Martino
BACKGROUND: A defective skin barrier is hypothesised to be an important route of sensitisation to dietary antigens, and may lead to food allergy in some children. Missense mutations in the Serine peptidase inhibitor kazal type 5 (SPINK5) skin barrier gene have previously been associated with allergic conditions. OBJECTIVE: To determine whether genetic variants in and around SPINK5 are associated with IgE mediated food allergy. METHOD: We genotyped 71 'tag' single nucleotide polymorphisms (tag-SNPs) within a region spanning ~263 kilobases (kb) including SPINK5 (~61kb) in n=722 (n=367 food allergic, n=199 food sensitised, tolerant and n=156 non-food allergic controls) 12-month infants (discovery sample) phenotyped for food allergy with the gold standard oral food challenge (OFC)...
February 18, 2017: Allergy
https://www.readbyqxmd.com/read/28213886/dysregulation-of-metabolic-pathways-in-a-mouse-model-of-allergic-asthma
#5
Kevin D Quinn, Michaela Schedel, Yasmeen Nkrumah-Elie, Anthony Joetham, Michael Armstrong, Charmion Cruickshank-Quinn, Richard Reisdorph, Erwin W Gelfand, Nichole Reisdorph
BACKGROUND: Asthma is a complex lung disease resulting from the interplay of genetic and environmental factors. To understand the molecular changes that occur during the development of allergic asthma without genetic and environmental confounders, an experimental model of allergic asthma in mice was used. Our goals were to (1) identify changes at the small molecule level due to allergen exposure, (2) determine perturbed pathways due to disease, and (3) determine whether small molecule changes correlate with lung function...
February 18, 2017: Allergy
https://www.readbyqxmd.com/read/28208220/allergic-respiratory-disease-different-allergens-different-symptoms
#6
Antonio Valero, Santiago Quirce, Ignacio Dávila, Julio Delgado, Javier Domínguez-Ortega
BACKGROUND: Spanish population is rather homogeneous in its genetic and socio-cultural characteristics, but allergen sensitization shows wide geographical variations. We aimed at assessing whether sensitization to different allergens in the diverse geographical areas induced different clinical and quality of life characteristics in adult patients with a first-time diagnosis of rhinitis and/or asthma. METHODS: Two sequential, identically designed studies were carried out to evaluate such associations (PERFILAR I and II)...
February 16, 2017: Allergy
https://www.readbyqxmd.com/read/28207927/attenuated-airway-hyperresponsiveness-and-mucus-secretion-in-hdm-exposed-igf1r-deficient-mice
#7
S Piñeiro-Hermida, J A Gregory, I P López, R Torrens, C Ruíz-Martínez, M Adner, J G Pichel
BACKGROUND: Asthma is a common chronic lung disease characterized by airflow obstruction, airway hyperresponsiveness (AHR) and inflammation. IGFs have been reported to play a role in asthma but little is known about how the Insulin-like Growth Factor 1 Receptor (IGF1R) affects asthma pathobiology. METHODS: Female Igf1r-deficient and control mice were intranasally challenged with house dust mite (HDM) extract or PBS five days per week for four weeks. Lung function measurements, and bronchioalveolar lavage fluid (BALF), serum and lungs were collected on day 28 for further cellular, histological and molecular analysis...
February 16, 2017: Allergy
https://www.readbyqxmd.com/read/28194801/differences-in-eosinophil-molecular-profiles-between-children-and-adults-with-eosinophilic-esophagitis
#8
Christine Lingblom, Timo Käppi, Henrik Bergquist, Mogens Bove, Rikard Arkel, Robert Saalman, Christine Wennerås
BACKGROUND: Eosinophilic esophagitis (EoE) afflicts both children and adults. It has been debated whether pediatric and adult EoE represent different disease entities. The objectives of this study were to determine if the blood eosinophil molecular pattern of children with EoE is: 1) distinct from that of healthy children; and 2) different from that of adults with EoE. METHODS: Blood eosinophils from children and adults with EoE, and healthy controls, were analyzed with flow cytometry regarding levels of CD23, CD44, CD54, CRTH2, FOXP3 and galectin-10...
February 14, 2017: Allergy
https://www.readbyqxmd.com/read/28160290/regulatory-t-cells-and-type-2-innate-lymphoid-cell-dependent-asthma
#9
REVIEW
Jennifer L Aron, Omid Akbari
Group two innate lymphoid cells (ILC2s) are a recently identified group of cells with the potent capability to produce Th2-type cytokines such as interleukin (IL)-5 and IL-13. Several studies suggest that ILC2s play an important role in the development of allergic diseases and asthma. Activation of pulmonary ILC2s in murine models lacking T and B cells induces eosinophilia and airway hyperreactivity (AHR), which are cardinal features of asthma. More importantly, numerous recent studies have highlighted the role of ILC2s in asthma persistence and exacerbation among human subjects and thus, regulation of pulmonary ILC2s is a major area of investigation aimed at curbing allergic lung inflammation and exacerbation...
February 4, 2017: Allergy
https://www.readbyqxmd.com/read/28152201/biomarkers-for-monitoring-clinical-efficacy-of-allergen-immunotherapy-for-allergic-rhinoconjunctivitis-and-allergic-asthma-an-eaaci-position-paper
#10
M H Shamji, J H Kappen, M Akdis, E Jensen-Jarolim, E F Knol, J Kleine-Tebbe, B Bohle, A M Chaker, S J Till, R Valenta, L K Poulsen, M A Calderon, P Demoly, O Pfaar, L Jacobsen, S R Durham, C B Schmidt-Weber
Allergen immunotherapy (AIT) is an effective treatment for allergic rhinoconjunctivitis (AR) with or without asthma (1-12). AIT has disease modifying properties and confers long-term clinical benefit after cessation of treatment (6, 7, 13-17). AIT is routinely used in daily practice and can be administered either subcutaneously (SCIT) or sublingually (SLIT) (3-12). Although AIT is effective, the degree of remission strongly varies depending on the complex interaction between patient, allergy, symptomatology and vaccines used for AIT (3-9)...
February 2, 2017: Allergy
https://www.readbyqxmd.com/read/28140507/google-trends-terms-reporting-rhinitis-and-related-topics-differ-in-european-countries
#11
Jean Bousquet, Ioana Agache, Josep M Anto, Karl C Bergmann, Claus Bachert, Isabella Annesi-Maesano, Philippe J Bousquet, Gennaro D'Amato, Pascal Demoly, Govert De Vries, Esben Eller, Wytske Fokkens, Joao Fonseca, Tari Haahtela, Peter W Hellings, Jocelyne Just, Thomas Keil, Ludger Klimek, Piotr Kuna, Karin C Lodrup Carlsen, Ralf Mösges, Ruth Murray, Kristof Nekam, Gabrielle Onorato, Nikos G Papadopoulos, Boleslaw Samolinski, Peter Schmid-Grendelmeier, Michel Thibaudon, Peter Tomazic, Massimo Triggiani, Arunas Valiulis, Erkka Valovirta, Michiel Van Eerd, Magnus Wickman, Torsten Zuberbier, Aziz Sheikh
Google Trends (GT) searches trends of specific queries in Google and reflects the real-life epidemiology of allergic rhinitis. We compared Google Trends terms related to allergy and rhinitis in all European Union countries, Norway and Switzerland from January 1, 2011 to December 20, 2016. The aim was to assess whether the same terms could be used to report the seasonal variations of allergic diseases. Using the Google Trend 5-year graph, an annual and clear seasonality of queries was found in all countries apart from Cyprus, Estonia, Latvia, Lithuania and Malta...
January 31, 2017: Allergy
https://www.readbyqxmd.com/read/28135772/evidence-for-a-role-of-eosinophils-in-blister-formation-in-bullous-pemphigoid
#12
Elisabeth de Graauw, Cassian Sitaru, Michael Horn, Luca Borradori, Shida Yousefi, Hans-Uwe Simon, Dagmar Simon
BACKGROUND: Bullous pemphigoid (BP) is an autoimmune bullous disease of the skin characterized by subepidermal blister formation due to tissue-bound and circulating autoantibodies to the hemidesmosomal antigens BP180 and BP230. Although eosinophils and their toxic mediators are found abundantly in BP lesions, their role in blister formation has remained unclear. OBJECTIVE: To investigate the role of eosinophils in the pathogenesis of BP with a specific focus on blister formation and to define conditions inducing dermal-epidermal separation (DES)...
January 30, 2017: Allergy
https://www.readbyqxmd.com/read/28122135/pd-1-expression-correlates-with-disease-severity-and-il-5-in-chronic-rhinosinusitis-with-nasal-polyps
#13
Inge Kortekaas Krohn, Sonja Bobic, James Dooley, Feng Lan, Nan Zhang, Claus Bachert, Brecht Steelant, Dominique Bullens, Adrian Liston, Jan L Ceuppens, Sven F Seys, Peter W Hellings
BACKGROUND: Programmed cell Death 1 (PD-1) is a negative regulator of T cell responses. Expression of PD-1 and its ligands PD-L1 and PD-L2 in chronic rhinosinusitis with nasal polyps (CRSwNP) is poorly studied. METHODS: Expression of PD-1, PD-L1, PD-L2, TGF-β, IL-5 and IL-10 mRNA was measured by RT-PCR on tissue homogenates of patients with CRSwNP (n=21) and healthy controls (n=21) and on primary epithelial cells. Disease severity was scored using the Lund-Mackay scores of maxillo-facial CT scans...
January 25, 2017: Allergy
https://www.readbyqxmd.com/read/28122133/allergen-exposure-chambers-aec-harmonizing-current-concepts-and-projecting-the-needs-for-the-future-an-eaaci-position-paper
#14
O Pfaar, M A Calderon, C P Andrews, E Angjeli, K C Bergmann, J H Bønløkke, F de Blay, P Devillier, A K Ellis, R Gerth van Wijk, J Hohlfeld, F Horak, Jutel M, R L Jacobs, L Jacobsen, S Kaul, M Larché, D Larenas-Linnemann, R Mösges, H Nolte, P Patel, L Peoples, R L Rabin, C Rather, A M Salapatek, T Sigsgaard, S Thaarup, J Yang, P Zieglmayer, T Zuberbier, P Demoly
BACKGOUND: Allergen exposure chambers (AEC) are clinical facilities allowing for controlled exposure of subjects to allergens in an enclosed environment. AEC have contributed towards characterizing the pathophysiology of respiratory allergic diseases and the pharmacological properties of new therapies. In addition, they are complementary to and offer some advantages over traditional multi-centre field trials for evaluation of novel therapeutics. To date, AEC studies conducted have been monocentric and have followed protocols unique to each center...
January 25, 2017: Allergy
https://www.readbyqxmd.com/read/28122131/results-of-an-allergy-educational-needs-questionnaire-for-primary-care
#15
Dermot Ryan, E Angier, M Gomez, D Church, Maria Batsiou, Kristóf Nekam, Nino Lomidze, Radek Gawlik
BACKGROUND: It is well recognized that knowledge of allergic conditions is sub-optimal in primary care. The Primary Care Interest Group of the European Academy of Allergy and Clinical Immunology undertook an educational needs survey to better understand what they were and how best to meet them, in the primary care environment. METHOD: an electronic questionnaire was devised and distributed as widely as possible. RESULTS: 2226 people from 63 countries opened the e-questionnaire of which 692 provided evaluable responses...
January 25, 2017: Allergy
https://www.readbyqxmd.com/read/28122129/novel-approaches-and-perspectives-in-allergen-immunotherapy
#16
REVIEW
Hans Jürgen Hoffmann, Erkka Valovirta, Oliver Pfaar, Philippe Moingeon, Johannes Martin Schmid, Søren Helbo Skaarup, Lars-Olaf Cardell, Kim Simonsen, Mark Larche, Stephen R Durham, Poul Sørensen
In this review we report on relevant current topics in allergen immunotherapy (AIT) which were broadly discussed during the 1(st) Aarhus Immunotherapy Symposium (Aarhus, Denmark) in December, 2015 by leading clinicians, scientists and industry representatives in the field. The aim of this symposium was to highlight AIT-related aspects of public health, clinical efficacy evaluation, mechanisms, development of new biomarkers and an overview of novel therapeutic approaches. Allergy is a public health issue of high socioeconomic relevance, and development of evidence-based action plans to address allergy as a public health issue ought to be on national and regional agendae...
January 25, 2017: Allergy
https://www.readbyqxmd.com/read/28122115/precision-medicine-in-allergic-disease-food-allergy-drug-allergy-and-anaphylaxis-practall-document-of-the-european-academy-of-allergy-and-clinical-immunology-and-the-american-academy-of-allergy-asthma-immunology
#17
REVIEW
Antonella Muraro, Robert F Lemanske, Mariana Castells, Maria J Torres, David Khan, Hans-Uwe Simon, Carsten Bindslev-Jensen, Wesley Burks, Lars K Poulsen, Hugh A Sampson, Margitta Worm, Kari C Nadeau
This consensus document summarizes the current knowledge on the potential for precision medicine in food allergy, drug allergy and anaphylaxis under the auspices of the PRACTALL collaboration platform. PRACTALL is a joint effort of the European Academy of Allergy and Clinical Immunology (EAACI) and the American Academy of Allergy, Asthma and Immunology (AAAAI), which aims to synchronize the European and American approaches to allergy care. Precision medicine is an emerging approach for disease treatment based on disease endotypes, which are phenotypic subclasses associated with specific mechanisms underlying the disease...
January 25, 2017: Allergy
https://www.readbyqxmd.com/read/28108985/the-th2-gene-cluster-unraveled-role-of-rhs6
#18
EDITORIAL
Cameron H Flayer, Angela Haczku
Although the transcription factors that regulate T helper (Th) type 2 cytokine production (IL-4, IL-5, and IL-13) are possible novel therapeutic targets, we lack a detailed understanding of the mechanisms that regulate the transcription of these cytokines. In this issue of Allergy, Hwang et al. studied the role of a specific DNA region (a cis-acting element called Rad50 hypersensitive site 6) RHS6, in the development of allergic airway inflammation. RHS6 is found in the Th2 cytokine "locus control region" but its role in activation of the IL-4, IL-5, and IL-13 genes was unknown...
January 20, 2017: Allergy
https://www.readbyqxmd.com/read/28106273/the-immunoglobulin-superfamily-member-cd200r-identifies-cells-involved-in-type-2-immune-responses
#19
Lars H Blom, Britta C Martel, Lau F Larsen, Camilla V Hansen, Malene P Christensen, Nanna Juel-Berg, Thomas Litman, Lars K Poulsen
BACKGROUND: The pathology of allergic diseases involves type 2 immune cells, such as Th2, ILC2, and basophils exerting their effect by production of IL-4, IL-5, and IL-13. However, surface receptors that are specifically expressed on type 2 immune cells are less well documented. The aim of this investigation was to identify surface markers associated with type 2 inflammation. METHODS: Naïve human CD4(+) T-cells were short-term activated in the presence or absence of IL-4, and analysed for expression of >300 cell-surface proteins...
January 20, 2017: Allergy
https://www.readbyqxmd.com/read/28101886/incident-alopecia-areata-and-vitiligo-in-adult-women-with-atopic-dermatitis-nurses-health-study-2
#20
A M Drucker, J M Thompson, W-Q Li, E Cho, T Li, E Guttman-Yassky, A A Qureshi
We aimed to determine the risk of alopecia areata (AA) and vitiligo associated with atopic dermatitis (AD) in a large cohort of US women, the Nurses' Health Study 2. We used logistic regression to calculate age- and multivariate-adjusted odds ratios to determine the risk of incident AA and vitiligo associated with AD diagnosed in or before 2009. A total of 87 406 and 87 447 participants were included in the AA and vitiligo analyses, respectively. A history of AD in 2009 was reported in 11% of participants. There were 147 incident cases of AA and 98 incident cases of vitiligo over 2 years of follow-up...
January 19, 2017: Allergy
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