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https://www.readbyqxmd.com/read/28549270/the-effects-of-early-life-adversity-on-the-immune-system
#1
REVIEW
Martha M C Elwenspoek, Annette Kuehn, Claude P Muller, Jonathan D Turner
Early life adversity (ELA) is associated with a higher risk for diseases in adulthood. Although the pathophysiological effects of ELA are varied, there may be a unifying role for the immune system in all of the long-term pathologies such as chronic inflammatory disorders (autoimmune diseases, allergy, and asthma). Recently, significant efforts have been made to elucidate the long-term effects ELA has on immune function, as well as the mechanisms underlying these immune changes. In this review, we focus on data from human studies investigating immune parameters in relation to post-natal adverse experiences...
May 17, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28543436/prenatal-environmental-tobacco-smoke-exposure-increases-allergic-asthma-risk-with-methylation-changes-in-mice
#2
Sonja Christensen, Zeina Jaffar, Elizabeth Cole, Virginia Porter, Maria Ferrini, Britten Postma, Kent E Pinkerton, Mihi Yang, Yang Jee Kim, Luke Montrose, Kevan Roberts, Andrij Holian, Yoon Hee Cho
Allergic asthma remains an inadequately understood disease. In utero exposure to environmental tobacco smoke (ETS) has been identified as an environmental exposure that can increase an individual's asthma risk. To improve our understanding of asthma onset and development, we examined the effect of in utero ETS exposure on allergic disease susceptibility in an asthmatic phenotype using a house dust mite (HDM) allergen-induced murine model. Pregnant C57BL/6 mice were exposed to either filtered air or ETS during gestation, and their offspring were further exposed to HDM at 6-7 weeks old to induce allergic inflammation...
May 25, 2017: Environmental and Molecular Mutagenesis
https://www.readbyqxmd.com/read/28542217/assessment-of-asthma-severity-in-adults-with-ever-asthma-a-continuous-score
#3
Lucia Calciano, Angelo Guido Corsico, Pietro Pirina, Giulia Trucco, Deborah Jarvis, Christer Janson, Simone Accordini
BACKGROUND: In epidemiological studies, continuous measures of asthma severity should be used to catch the heterogeneity of phenotypes. This study aimed at developing and validating continuous measures of asthma severity in adult patients with ever asthma from the general population, to be used in epidemiological studies. METHODS: Respiratory symptoms, anti-asthmatic treatment and lung function were measured on 520 patients with ever asthma aged 20-64 years from the general Italian population (GEIRD study; 2007/2010)...
2017: PloS One
https://www.readbyqxmd.com/read/28539203/the-interplay-between-neuroendocrine-activity-and-psychological-stress-induced-exacerbation-of-allergic-asthma
#4
REVIEW
Tomomitsu Miyasaka, Kaori Dobashi-Okuyama, Tomoko Takahashi, Motoaki Takayanagi, Isao Ohno
Psychological stress is recognized as a key factor in the exacerbation of allergic asthma, whereby brain responses to stress act as immunomodulators for asthma. In particular, stress-induced enhanced type 2 T-helper (Th2)-type lung inflammation is strongly associated with asthma pathogenesis. Psychological stress leads to eosinophilic airway inflammation through activation of the hypothalamic-pituitary-adrenal pathway and autonomic nervous system. This is followed by the secretion of stress hormones into the blood, including glucocorticoids, epinephrine, and norepinephrine, which enhance Th2 and type 17 T-helper (Th17)-type asthma profiles in humans and rodents...
May 20, 2017: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/28531273/phenotypes-of-atopic-dermatitis-depending-on-the-timing-of-onset-and-progression-in-childhood
#5
Caroline Roduit, Remo Frei, Martin Depner, Anne M Karvonen, Harald Renz, Charlotte Braun-Fahrländer, Elisabeth Schmausser-Hechfellner, Juha Pekkanen, Josef Riedler, Jean-Charles Dalphin, Erika von Mutius, Roger Pascal Lauener, Anne Hyvärinen, Pirkka Kirjavainen, Sami Remes, Marjut Roponen, Marie-Laure Dalphin, Vincent Kaulek, Markus Ege, Jon Genuneit, Sabina Illi, Micahel Kabesch, Bianca Schaub, Petra Ina Pfefferle, Gert Doekes
Importance: Atopic dermatitis is an inflammatory, pruritic skin disease that often occurs in early infancy with a chronic course. However, a specific description of subtypes of atopic dermatitis depending on the timing of onset and progression of the disease in childhood is lacking. Objective: To identify different phenotypes of atopic dermatitis using a definition based on symptoms before age 6 years and to determine whether some subtypes are more at risk for developing other allergic diseases...
May 22, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28527151/association-of-the-mir-196a2-mir-146a-and-mir-499-polymorphisms-with-asthma-phenotypes-in-a-korean-population
#6
Hoang Kim Tu Trinh, Duy Le Pham, Su-Chin Kim, Ri-Yeon Kim, Hae-Sim Park, Seung-Hyun Kim
BACKGROUND: MicroRNAs (miRNAs) modulate expressions of inflammatory genes, thereby regulating inflammatory responses. Single nucleotide polymorphisms (SNPs) in miRNAs could affect their efficiency in binding to messenger RNAs (mRNAs). OBJECTIVE: We investigated the associations of miRNA SNPs with asthma phenotypes. miR-196a2 (rs11614913 T>C), miR-146a (rs2910164 C>G), and miR-499 (rs3746444 A>G) were genotyped in 347 asthma patients and 172 normal healthy controls (NCs)...
May 19, 2017: Molecular Diagnosis & Therapy
https://www.readbyqxmd.com/read/28523136/phenotypic-presentation-of-chronic-cough-in-children
#7
EDITORIAL
Ahmad Kantar
Chronic cough in children is increasingly defined as a cough that lasts more than four weeks. It is recognized as a different entity than cough in adults. As a result, the diagnostic approach and management of chronic cough in children are no longer extrapolated from adult guidelines. These differences are attributed to the various characteristics of the respiratory tract, immunological system and nervous system in children. Specific paediatric guidelines and algorithms for chronic cough are now widely applied...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28521083/inflammatory-infiltrate-and-mucosal-remodeling-in-chronic-rhinosinusitis-with-and-without-polyps-structured-histopathologic-analysis
#8
Hannah N Kuhar, Bobby A Tajudeen, Mahboobeh Mahdavinia, Paolo Gattuso, Ritu Ghai, Pete S Batra
BACKGROUND: Chronic rhinosinusitis (CRS) is commonly classified into CRS with nasal polyps (CRSwNP) and CRS without nasal polyps (CRSsNP). Structured histopathologic reporting has the potential to identify salient histologic markers to differentiate subtypes and provide insights into pathophysiologic mechanisms in CRS. METHODS: A structured histopathology report of 13 variables was prospectively employed to analyze ethmoid sinus tissue removed during endoscopic sinus surgery for 99 patients, including 43 CRSsNP and 56 CRSwNP...
May 18, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28516728/increased-heterogeneity-of-airway-calibre-in-adult-rats-after-hypoxia-induced-intrauterine-growth-restriction
#9
Kimberley C W Wang, Jude S Morton, Sandra T Davidge, Alexander N Larcombe, Alan L James, Graham M Donovan, Peter B Noble
BACKGROUND AND OBJECTIVE: Intrauterine growth restriction (IUGR) is associated with asthma development. We hypothesized that IUGR disrupts airway development leading to postnatal structural abnormalities of the airway that predispose to disease. This study therefore examined structural changes to the airway and lung in a rat model of maternal hypoxia-induced IUGR. METHODS: Pregnant rats were housed under hypoxic conditions (11.5% O2 ) from gestational days (GDs) 13 to 20 (pseudoglandular-canalicular stages, i...
May 17, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28515395/the-interrelationship-between-asthma-and-brain-activities-psychological-stress-related-asthma-as-a-new-asthma-phenotype
#10
Isao Ohno
No abstract text is available yet for this article.
2017: Arerugī, [Allergy]
https://www.readbyqxmd.com/read/28515358/irf5-distinguishes-severe-asthma-in-humans-and-drives-th1-phenotype-and-airway-hyperreactivity-in-mice
#11
Timothy B Oriss, Mahesh Raundhal, Christina Morse, Rachael E Huff, Sudipta Das, Rachel Hannum, Marc C Gauthier, Kathryn L Scholl, Krishnendu Chakraborty, Seyed M Nouraie, Sally E Wenzel, Prabir Ray, Anuradha Ray
Severe asthma (SA) is a significant problem both clinically and economically, given its poor response to corticosteroids (CS). We recently reported a complex type 1-dominated (IFN-γ-dominated) immune response in more than 50% of severe asthmatics despite high-dose CS treatment. Also, IFN-γ was found to be critical for increased airway hyperreactivity (AHR) in our model of SA. The transcription factor IRF5 expressed in M1 macrophages can induce a Th1/Th17 response in cocultured human T cells. Here we show markedly higher expression of IRF5 in bronchoalveolar lavage (BAL) cells of severe asthmatics as compared with that in cells from milder asthmatics or healthy controls...
May 18, 2017: JCI Insight
https://www.readbyqxmd.com/read/28513859/identification-of-a-plasma-mirna-biomarker-signature-for-allergic-asthma-a-translational-approach
#12
Katrin Milger, Jeremias Götschke, Linda Krause, Petra Nathan, Francesca Alessandrini, Amanda Tufman, Rainald Fischer, Sabine Bartel, Fabian J Theis, Jürgen Behr, Stefan Dehmel, Nikola S Mueller, Nikolaus Kneidinger, Susanne Krauss-Etschmann
BACKGROUND: Asthma is a heterogeneous chronic disease with different phenotypes and treatment responses. Thus, there is a high clinical need for molecular disease biomarkers to aid in differentiating these distinct phenotypes. As MicroRNAs (miRNAs), that regulate gene expression at the post-transcriptional level, are altered in experimental and human asthma, circulating miRNAs are attractive candidates for the identification of novel biomarkers. This study aimed to identify plasmatic miRNA-based biomarkers of asthma, through a translational approach...
May 17, 2017: Allergy
https://www.readbyqxmd.com/read/28503545/relationship-of-allergy-with-asthma-there-are-more-than-the-allergy-eggs-in-the-asthma-basket
#13
REVIEW
George V Guibas, Alexander G Mathioudakis, Marina Tsoumani, Sophia Tsabouri
Asthma and allergy share a similar and very close course, especially through childhood. Considerable research effort has been put in untangling these associations; however, it is now becoming obvious that this is an exceedingly difficult task. In fact, each research breakthrough further perplexes this picture, as we are steadily moving toward the era of personalized medicine and we begin to appreciate that what we thought to be a single disease, asthma, is in fact an accumulation of distinct entities. In the context of this "syndrome," which is characterized by several, as of yet poorly defined endotypes and phenotypes, the question of the link of "asthma" with allergy probably becomes non-relevant...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28497916/emerging-endotypes-of-chronic-rhinosinusitis-and-its-application-to-precision-medicine
#14
REVIEW
Dae Woo Kim, Seong H Cho
Chronic rhinosinusitis (CRS) is a heterogeneous inflammatory disease with various underlying pathophysiologic mechanisms which translate to endotypes, in contrast to clinical phenotypes or histological subtypes. Defining endotypes can help clinicians predict disease prognosis, select subjects suitable for a specific therapy, and assess risks for comorbid conditions, including asthma. Therefore, with recent advancement of biologicals in CRS clinical trials, endotyping can be a breakthrough in treating recalcitrant CRS...
July 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/28495687/phenotypes-of-copd-patients-with-a-smoking-history-in-central-and-eastern-europe-the-pope-study
#15
Vladimir Koblizek, Branislava Milenkovic, Adam Barczyk, Ruzena Tkacova, Attila Somfay, Kirill Zykov, Neven Tudoric, Kosta Kostov, Zuzana Zbozinkova, Jan Svancara, Jurij Sorli, Alvils Krams, Marc Miravitlles, Arschang Valipour
Chronic obstructive pulmonary disease (COPD) represents a major health problem in Central and Eastern European (CEE) countries; however, there are no data regarding clinical phenotypes of these patients in this region.Participation in the Phenotypes of COPD in Central and Eastern Europe (POPE) study was offered to stable patients with COPD in a real-life setting. The primary aim of this study was to assess the prevalence of phenotypes according to predefined criteria. Secondary aims included analysis of differences in symptom load, comorbidities and pharmacological treatment...
May 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28491864/can-getting-enough-vitamin-d-during-pregnancy-reduce-the-risk-of-getting-asthma-in-childhood
#16
REVIEW
Evangelia Bountouvi, Konstantinos Douros, Anna Papadopoulou
The worldwide increase in asthma prevalence during the last decades and the re-emergence of vitamin D deficiency in many populations hinted toward an underlying association between these two conditions. Since asthma is presented with high incidence in childhood and neonatal vitamin D stores depend on maternal vitamin levels, a possible programming effect of maternal vitamin D status during gestation was suggested. Observational and longitudinal studies on this subject led to inconclusive results with glimmer of positivity...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28489959/mood-disorders-in-adult-asthma-phenotypes
#17
Marina Labor, Slavica Labor, Iva Jurić, Vladimir Fijačko, Sanja Popović Grle, Davor Plavec
OBJECTIVE: Studies show high comorbidity of mood disorders in asthma. As asthma is a highly heterogeneous disease with different phenotypes it can be expected that there is a difference in this association with different asthma phenotypes. The aim of our cross-sectional study was to assess the association of specific asthma phenotypes with anxiety and/or depression and their impact on asthma control. METHODS: A cross-sectional study in 201 consecutive adult outpatients with asthma (≥18 years of age) was conducted...
May 10, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/28489455/micrornas-profiling-in-asthma-potential-biomarkers-and-therapeutic-targets
#18
Enrico Heffler, Alessandro Allegra, Giovanni Pioggia, Giuseppe Picardi, Caterina Musolino, Sebastiano Gangemi
Asthma is a heterogeneous chronic inflammatory disease in which different endotypes contribute to define clinical-inflammatory phenotypes. MicroRNAs (miRNAs) are a class of small, endogenous 22-25 nt RNA molecules that bind to specific mRNAs to inhibit translation and promote mRNA degradation. miRNAs function in post-transcriptional regulation and control physiological and pathological processes in various diseases. The purpose of this review is to summarize and discuss the current knowledge on the function of miRNAs in asthma, focusing the attention particularly on their biological properties, pathophysiologic roles, and potential use as biomarkers and/or therapies for asthma...
May 10, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28484598/the-evidence-on-tiotropium-bromide-in-asthma-from-the-rationale-to-the-bedside
#19
REVIEW
Dejan Radovanovic, Pierachille Santus, Francesco Blasi, Marco Mantero
Severe and poorly controlled asthma still accounts for a great portion of the patients affected. Disease control and future risk management have been identified by international guidelines as the main goals in patients with asthma. The need for new treatment approaches has led to reconsider anticholinergic drugs as an option for asthma treatment. Tiotropium is the first anticholinergic drug that has been approved for children and adults with poorly controlled asthma and is currently considered as an option for steps 4 and 5 of the Global Initiative for Asthma...
2017: Multidisciplinary Respiratory Medicine
https://www.readbyqxmd.com/read/28483562/the-role-of-inkt-cells-on-the-phenotypes-of-allergic-airways-in-a-mouse-model
#20
Lennart K A Lundblad, Nazey Gülec, Matthew E Poynter, Victoria L DeVault, Oliver Dienz, Jonathan E Boyson, Nirav Daphtary, Minara Aliyeva, Jennifer L Ather, Felix Scheuplein, Robert Schaub
iNKT cells and mast cells have both been implicated in the syndrome of allergic asthma through their activation-induced release of Th2 type cytokines and secretion of histamine and other mediators, respectively, which can promote airways hyperresponsiveness (AHR) to agents such as methacholine. However, a mechanistic link between iNKT cells and mast cell recruitment or activation has never been explored. Our objective was to determine whether iNKT cells are necessary for the recruitment of mast cells and if iNKT cells can influence the acute allergen induced bronchoconstriction (AIB) caused by mast cell mediator release...
May 5, 2017: Pulmonary Pharmacology & Therapeutics
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