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asthma biologics

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https://www.readbyqxmd.com/read/28087917/-reasearch-progress-on-the-role-of-neutrophils-in-asthma
#1
Tingting Li, Yuehai Ke, Hongqiang Cheng
Asthma is a phenotypically heterogeneous chronic disease of the airways. Studies have found that neutrophils are crucial to airway inflammation in acute asthma, persistent asthma, particularly in asthma of poor response to glucocorticoid treatment. The role of neutrophils in development of bronchial asthma is complex, as they can release a potent source of cytokines and inflammatory mediators participating in asthma. Differing from eosinophilic inflammatory asthma, neutrophilic inflammatory asthma is not depend on helper T (Th)2 cells, but may be related to Th1 and Th17 cells...
May 25, 2016: Zhejiang da Xue Xue Bao. Yi Xue Ban, Journal of Zhejiang University. Medical Sciences
https://www.readbyqxmd.com/read/28079285/a-pathway-based-association-study-reveals-variants-from-wnt-signaling-genes-contributing-to-asthma-susceptibility
#2
A Barreto-Luis, A Corrales, M Acosta-Herrera, C Gonzalez-Colino, J Cumplido, J Martinez-Tadeo, A Carracedo, J Villar, T Carrillo, M Pino-Yanes, C Flores
BACKGROUND: Genetic susceptibility to asthma is currently linked to a handful of genes which have a limited ability to predict the overall disease risk, suggesting the existence of many other genes involved in disease development. Accumulated evidence from association studies in genes related by biological pathways could reveal novel asthma genes. OBJECTIVE: To reveal novel asthma susceptibility genes by means of a pathway-based association study. METHODS: Based on summary data from a previous a genome-wide association study (GWAS) of asthma, we first identified significant biological pathways using a gene-set enrichment analysis...
January 12, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28073701/effect-of-asthma-therapies-on-the-natural-course-of-asthma
#3
REVIEW
Elissa M Abrams, Stanley J Szefler, Allan B Becker
OBJECTIVE: To provide an evidence-based review on the role of pharmacologic (inhaled corticosteroids, leukotriene receptor antagonists, biologic therapies, aeroallergen immunotherapy) and nonpharmacologic therapies (environmental modifications, microbiome) in secondary and tertiary asthma prevention. DATA SOURCES: A PubMed search for English-language publications regarding asthma and secondary or tertiary prevention was performed. Some articles cited in selected studies were also considered for inclusion in this review...
December 2016: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/28070196/airway-autoimmune-responses-in-severe-eosinophilic-asthma-following-low-dose-mepolizumab-therapy
#4
Manali Mukherjee, Hui Fang Lim, Sruthi Thomas, Douglas Miller, Melanie Kjarsgaard, Bruce Tan, Roma Sehmi, Nader Khalidi, Parameswaran Nair
BACKGROUND: Anti-interleukin (IL)-5 monoclonal antibodies as an eosinophil-depleting strategy is well established, with Mepolizumab being the first biologic approved as an adjunct treatment for severe eosinophilic asthma. CASE PRESENTATION: A 62-year old woman diagnosed with severe eosinophilic asthma showed poor response to Mepolizumab therapy (100 mg subcutaneous dose/monthly) and subsequent worsening of symptoms. The treatment response to Mepolizumab was monitored using both blood and sputum eosinophil counts...
2017: Allergy, Asthma, and Clinical Immunology
https://www.readbyqxmd.com/read/28069594/sigmod-an-exact-and-efficient-method-to-identify-a-strongly-interconnected-disease-associated-module-in-a-gene-network
#5
Yuanlong Liu, Myriam Brossard, Damian Roqueiro, Patricia Margaritte-Jeannin, Chloé Sarnowski, Emmanuelle Bouzigon, Florence Demenais
MOTIVATION: Apart from single marker-based tests classically used in genome-wide association studies (GWAS), network-assisted analysis has become a promising approach to identify a set of genes associated with disease. To date, most network-assisted methods aim at finding genes connected in a background network, whatever the density or strength of their connections. This can hamper the findings as sparse connections are non-robust against noise from either the GWAS results or the network resource...
January 9, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28065276/using-imaging-as-a-biomarker-for-asthma
#6
REVIEW
Abhaya Trivedi, Chase Hall, Eric A Hoffman, Jason C Woods, David S Gierada, Mario Castro
There have been significant advancements in the various imaging techniques being used for the evaluation of asthmatic patients, both from a clinical and research perspective. Imaging characteristics can be used to identify specific asthmatic phenotypes and provide a more detailed understanding of endotypes contributing to the pathophysiology of the disease. Computed tomography, magnetic resonance imaging, and positron emission tomography can be used to assess pulmonary structure and function. It has been shown that specific airway and lung density measurements using computed tomography correlate with clinical parameters, including severity of disease and pathology, but also provide unique phenotypes...
January 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28063900/smoker-extracellular-vesicles-influence-status-of-human-bronchial-epithelial-cells
#7
Amélie Héliot, Yann Landkocz, Françoise Roy Saint-Georges, Pierre Gosset, Sylvain Billet, Pirouz Shirali, Dominique Courcot, Perrine J Martin
Cigarette smoking is a habit that has spread all over the world and is a significant risk factor for many diseases including cardiovascular disease, chronic obstructive pulmonary disease (COPD), asthma and lung cancer. Evaluation and understanding of tobacco health effects are of major interest worldwide and answer to important societal concerns. Identification of new biomarkers of exposure to tobacco smoke potentially implicated in COPD or lung carcinogenesis would allow a better observation of tobacco exposed population, thanks to screening establishment at reversible stages of pathological processes...
December 30, 2016: International Journal of Hygiene and Environmental Health
https://www.readbyqxmd.com/read/28049205/bufalin-inhibits-the-inflammatory-effects-in-asthmatic-mice-through-the-suppression-of-nuclear-factor-kappa-b-activity
#8
Zibierguli Zhakeer, Maierbati Hadeer, Zumulaiti Tuerxun, Kelibiena Tuerxun
Asthma is an inflammatory airway disease characterized by increased infiltration of inflammatory cells into the airways and poor respiratory function. Bufalin is one of the biological ingredients obtained from Chansu. Bufalin was found to possess various pharmacological properties including anti-inflammatory activities. However, the effect of bufalin treatment on asthma has not yet been reported. Therefore, this study aimed to investigate the inhibitory effect of bufalin on asthmatic response in a murine model...
January 4, 2017: Pharmacology
https://www.readbyqxmd.com/read/28049124/personalised-medicine-in-asthma-from-curative-to-preventive-medicine
#9
REVIEW
Laurent Guilleminault, Hakima Ouksel, Chantal Belleguic, Yannick Le Guen, Patrick Germaud, Emilie Desfleurs, Christophe Leroyer, Antoine Magnan
The concept of asthma has changed substantially in recent years. Asthma is now recognised as a heterogeneous entity that is complex to treat. The subdivision of asthma, provided by "cluster" analyses, has revealed various groups of asthma patients who share phenotypic features. These phenotypes underlie the need for personalised asthma therapy because, in contrast to the previous approach, treatment must be tailored to the individual patient. Determination of the patient's asthma phenotype is therefore essential but sometimes challenging, particularly in elderly patients with a multitude of comorbidities and a complex exposure history...
January 2017: European Respiratory Review: An Official Journal of the European Respiratory Society
https://www.readbyqxmd.com/read/28044257/targeted-therapy-for-severe-asthma-identifying-the-right-patients
#10
Kathy Low, Philip G Bardin
Asthma affects over 300 million people worldwide. Most asthmatics are well controlled with inhaled corticosteroids and long-acting beta-agonists; however, a proportion of patients are unresponsive and attain limited disease control. This group represents a considerable healthcare and financial burden, particularly patients who experience frequent exacerbations and require hospital admission. Development of new biological agents and disease biomarkers has provided novel avenues for treatment. These treatments have been highly successful, reducing exacerbations and yielding modest improvements in quality of life and lung function...
January 2, 2017: Molecular Diagnosis & Therapy
https://www.readbyqxmd.com/read/28000962/hypoxia-causes-il-8-secretion-charcot-leyden-crystal-formation-and-suppression-of-corticosteroid-induced-apoptosis-in-human-eosinophils
#11
Linsey M Porter, Andrew S Cowburn, Neda Farahi, John Deighton, Stuart N Farrow, Christine A Fiddler, Jatinder K Juss, Alison M Condliffe, Edwin R Chilvers
BACKGROUND: Inflamed environments are typically hypercellular, rich in pro-inflammatory cytokines, and profoundly hypoxic. While the effects of hypoxia on neutrophil longevity and function have been widely studied, little is known about the consequences of this stimulus on eosinophils. OBJECTIVE: We sought to investigate the effects of hypoxia on several key aspects of eosinophil biology; namely secretion, survival, and their sensitivity to glucocorticosteroids (GCS), agents which normally induce eosinophil apoptosis...
December 21, 2016: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27996052/distinct-roles-of-short-and-long-thymic-stromal-lymphopoietin-isoforms-in-house-dust-mite-induced-asthmatic-airway-epithelial-barrier-disruption
#12
Hangming Dong, Yahui Hu, Laiyu Liu, Mengchen Zou, Chaowen Huang, Lishan Luo, Changhui Yu, Xuan Wan, Haijin Zhao, JiaLong Chen, Zhefan Xie, Yanqing Le, Fei Zou, Shaoxi Cai
Loss of airway epithelial integrity contributes significantly to asthma pathogenesis. Thymic stromal lymphopoietin (TSLP) may have dual immunoregulatory roles. In inflammatory disorders of the bowel, the long isoform of TSLP (lfTSLP) promotes inflammation while the short isoform (sfTSLP) inhibits inflammation. We hypothesize that lfTSLP contributes to house dust mite (HDM)-induced airway epithelial barrier dysfunction and that synthetic sfTSLP can prevent these effects. In vitro, airway epithelial barrier function was assessed by monitoring transepithelial electrical resistance, fluorescent-dextran permeability, and distribution of E-cadherin and β-catenin...
December 20, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27984699/gene-expression-correlated-to-severe-asthma-characteristics-reveals-heterogeneous-mechanisms-of-severe-disease
#13
Brian D Modena, Eugene R Bleecker, William W Busse, Serpil C Erzurum, Benjamin M Gaston, Nizar N Jarjour, Deborah A Meyers, Jadranka Milosevic, John R Tedrow, Wei Wu, Naftali Kaminski, Sally E Wenzel
RATIONALE: Severe asthma is a heterogeneous disease with multiple molecular mechanisms. Gene expression studies of asthmatic bronchial epithelial cells have provided biological insight and underscored possible mechanistic differences between individuals. OBJECTIVE: Identify networks of genes reflective of underlying biological processes that define severe asthma(SA). METHODS: Airway epithelial cell gene expression from 155 asthmatics and healthy controls(HC) in the Severe Asthma Research Program was analyzed by weighted gene co-expression network analysis (WGCNA) to identify gene networks and profiles associated with severe asthma and its specific characteristics (i...
December 16, 2016: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/27982737/il-37-a-new-il-1-family-member-emerges-as-a-key-suppressor-of-asthma-mediated-by-mast-cells
#14
P Conti, G Ronconi, A Caraffa, G Lessiani, Kempuraj Duraisamy
: In 1986, we reported a multiple biological effect of IL-1 including immunological, inflammatory, and tumor killing activity. Since then other IL-1 family cytokines have been discovered, some with inflammatory and other with anti-inflammatory activity. In this review article, we speculate on the possible inhibitory effect of IL-37 in the light of new findings. IL-37, formerly termed IL-1 family member 7 (IL-1F7), binding IL-18 receptor α chain, acts as a cytokine with intracellular as well as extracellular functionality and as a natural inhibitor of immune responses and inflammation...
December 16, 2016: Immunological Investigations
https://www.readbyqxmd.com/read/27980705/asthma-heterogeneity-and-severity
#15
REVIEW
Tara F Carr, Eugene Bleecker
Asthma is a common, chronic inflammatory airways disease characterized by a clinical syndrome of bronchial hyperresponsiveness, inflammation, and reversible airflow obstruction. Individuals with asthma can vary widely in clinical presentation, severity, and pathobiology. The incident factors, pathogenesis, prognosis, and treatment of asthma remain incompletely understood. Utilizing measurable characteristics of asthmatic patients, including demographic, physiologic, and biologic markers, can however identify meaningful phenotypic categories in asthma...
2016: World Allergy Organization Journal
https://www.readbyqxmd.com/read/27978840/validated-and-longitudinally-stable-asthma-phenotypes-based-on-cluster-analysis-of-the-adept-study
#16
Matthew J Loza, Ratko Djukanovic, Kian Fan Chung, Daniel Horowitz, Keying Ma, Patrick Branigan, Elliot S Barnathan, Vedrana S Susulic, Philip E Silkoff, Peter J Sterk, Frédéric Baribaud
BACKGROUND: Asthma is a disease of varying severity and differing disease mechanisms. To date, studies aimed at stratifying asthma into clinically useful phenotypes have produced a number of phenotypes that have yet to be assessed for stability and to be validated in independent cohorts. The aim of this study was to define and validate, for the first time ever, clinically driven asthma phenotypes using two independent, severe asthma cohorts: ADEPT and U-BIOPRED. METHODS: Fuzzy partition-around-medoid clustering was performed on pre-specified data from the ADEPT participants (n = 156) and independently on data from a subset of U-BIOPRED asthma participants (n = 82) for whom the same variables were available...
December 15, 2016: Respiratory Research
https://www.readbyqxmd.com/read/27971571/anticipated-impact-of-eu5-payer-policy-on-prescribing-of-novel-biologic-therapies-in-asthma
#17
L DiModica, E Kozhemyakina
No abstract text is available yet for this article.
November 2016: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/27965780/manifesto-on-small-airway-involvement-and-management-in-asthma-and-chronic-obstructive-pulmonary-disease-an-interasma-global-asthma-association-gaa-and-world-allergy-organization-wao-document-endorsed-by-allergic-rhinitis-and-its-impact-on-asthma-aria-and-global
#18
F Braido, N Scichilone, F Lavorini, O S Usmani, L Dubuske, L P Boulet, R Mosges, C Nunes, M Sánchez-Borges, I J Ansotegui, M Ebisawa, F Levi-Schaffer, L J Rosenwasser, J Bousquet, T Zuberbier, G Walter Canonica
Evidence that enables us to identify, assess, and access the small airways in asthma and chronic obstructive pulmonary disease (COPD) has led INTERASMA (Global Asthma Association) and WAO to take a position on the role of the small airways in these diseases. Starting from an extensive literature review, both organizations developed, discussed, and approved the manifesto, which was subsequently approved and endorsed by the chairs of ARIA and GA(2)LEN. The manifesto describes the evidence gathered to date and defines and proposes issues on small airway involvement and management in asthma and COPD with the aim of challenging assumptions, fostering commitment, and bringing about change...
2016: Asthma research and practice
https://www.readbyqxmd.com/read/27965779/asthma-phenotypes-the-intriguing-selective-intervention-with-montelukast
#19
REVIEW
Cottini Marcello, Lombardi Carlo
Asthma is a heterogeneous disease, usually characterized by chronic airway inflammation and a variable course associated with various underlying mechanisms that can differ between individuals. Patients with asthma can therefore exhibit different phenotypes, a term used to define the observable characteristics of an organism resulting from the interaction between its genetic makeup and the environment. The heterogeneity of asthma has received a large amount of attention in the last few years in order to better tailor treatment according to the different clinical and biological phenotypes of the disease...
2016: Asthma research and practice
https://www.readbyqxmd.com/read/27943046/fungal-exposure-and-asthma-ige-and-non-ige-mediated-mechanisms
#20
REVIEW
Zhonghua Zhang, Tiina Reponen, Gurjit K Khurana Hershey
Fungi are ubiquitous in indoor and outdoor environments and have been associated with respiratory disease including childhood and adult asthma. A growing body of evidence from human and animal studies has revealed a link between fungal exposure, especially indoor fungal exposure, with asthma initiation, persistence, and exacerbation. Despite the overwhelming evidence linking mold exposure and asthma, the mechanistic basis for the association has remained elusive. It is now clear that fungi need not be intact to impart negative health effects...
November 2016: Current Allergy and Asthma Reports
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