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Glucocorticoid asthma

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https://www.readbyqxmd.com/read/30335498/th1-cytokines-tnf%C3%AE-and-ifn%C3%AE-promote-corticosteroid-resistance-in-developing-human-airway-smooth-muscle
#1
Rodney D Britt, Michael A Thompson, Sarah K Sasse, Christina M Pabelick, Anthony N Gerber, Y S Prakash
Corticosteroids are commonly used to manage wheezing and asthma in pediatric populations. Although corticosteroids are effective in alleviating airway diseases, some children with more moderate-severe asthma phenotypes show corticosteroid (CS) resistance and exhibit significant airflow obstruction, persistent inflammation, and more frequent exacerbations. Previous studies have demonstrated that Th1 cytokines, such as TNFα and IFNγ, promote corticosteroid resistance in adult human airway smooth muscle (ASM)...
October 18, 2018: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/30304965/role-of-th17-cell-related-cytokines-in-geriatric-asthma
#2
Zhang Quan-San, Xu Xiaohong, Li Ying, Sun Zhaojia
Objective This study aimed to investigate the pathogenesis of geriatric asthma through immunoglobulin E (IgE), interleukin-17A (IL-17A), IL-17F, and glucocorticoid receptor-β (GR-β) expression. Methods We studied 51 geriatric male patients with asthma and 50 young male patients with asthma. We also included 21 normal geriatric males and 21 normal young males. All geriatric and young patients were divided into groups according to pulmonary function. Levels of cytokines, such as IgE, IL-17A, IL-17F, and GR-β, were measured...
October 10, 2018: Journal of International Medical Research
https://www.readbyqxmd.com/read/30300399/microrna-146a-is-induced-by-inflammatory-stimuli-in-airway-epithelial-cells-and-augments-the-anti-inflammatory-effects-of-glucocorticoids
#3
Kristin A Lambert, Alanna N Roff, Ronaldo P Panganiban, Scott Douglas, Faoud T Ishmael
BACKGROUND: MicroRNAs (miRNAs) are emerging as central regulators of inflammation, but their role in asthma and airway epithelial cells is not well studied. Glucocorticoids are the cornerstone of therapy in asthma and other inflammatory disease, yet their mechanisms of action are not completely elucidated, and it is not clear whether miRNAs modulate their effects. OBJECTIVE: We aimed to identify miRNAs that regulate cytokine and chemokine expression in airway epithelial cells and whether these miRNAs are subject to the effects of glucocorticoids...
2018: PloS One
https://www.readbyqxmd.com/read/30285942/clara-cell-protein-16-release-from-the-nasal-mucosa-in-allergic-rhinitis-chronic-rhinosinusitis-and-exposure-to-air-pollutants
#4
Aleksandar Perić, Cveta Špadijer Mirković, Danilo Vojvodić
Clara cell protein 16 (CC16) is a small protein mainly produced by non-ciliated Clara cells in the respiratory epithelium. It has an anti-inflammatory role in chronic upper and lower airway eosinophilic inflammations. Decreased levels of CC16 are found in the nasal secretions and plasma of patients with chronic eosinophilic inflammatory disorders, such as asthma, allergic rhinitis, and chronic rhinosinusitis with or without nasal polyps, as well as in people exposed to high levels of air pollutants. Intranasal corticosteroid administration suppresses chronic inflammation of the nasal mucosa driven by eosinophils and stimulates local CC16 production...
September 1, 2018: Arhiv za Higijenu Rada i Toksikologiju
https://www.readbyqxmd.com/read/30274776/protective-effect-of-electro-acupuncture-at-maternal-different-points-on-perinatal-nicotine-exposure-induced-pulmonary-dysplasia-in-offspring-based-on-hpa-axis-and-signal-transduction-pathway
#5
Yitian Liu, Bo Ji, Guozhen Zhao, Hang Su, Yunpeng Ge, Jian Dai, Yawen Lu, Reiko Sakurai, Virender K Rehan
Perinatal nicotine exposure can not only lead to lung dysplasia in offspring, but also cause epigenetic changes and induce transgenerational asthma. Previous studies have shown that electro-acupuncture (EA) applied to "Zusanli" (ST 36) can improve the lung morphology and correct abnormal expression of lung development-related protein in perinatal nicotine exposure offspring. However, it is still unclear whether ST 36 has a specific therapeutic effect and how maternal acupuncture can protect the offspring from pulmonary dysplasia...
September 28, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/30245919/effects-of-allergic-stimulation-and-glucocorticoids-on-mir-155-in-cd4-t-cells
#6
Elizabeth Daniel, Alanna Roff, Man-Hsun Hsu, Ronaldo Panganiban, Kristin Lambert, Faoud Ishmael
RATIONALE: MicroRNAs (miRNAs) are emerging as important regulators of allergic inflammation and potential therapeutic targets. We sought to identify which miRNAs are expressed in CD4+ T-cells and determine whether allergic stimuli or glucocorticoids alter their expression. METHODS: After IRB approval, blood was collected from dust mite (DM) allergic rhinitis subjects (n=20), non-allergic controls (n=8), and asthmatics (n=16). Peripheral blood mononuclear cells were incubated with dust mite extract (DME), diluent control, or DME + dexamethasone (0...
2018: American Journal of Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/30233597/fra2-overexpression-in-mice-leads-to-non-allergic-asthma-development-in-an-il-13-dependent-manner
#7
Anna Gungl, Valentina Biasin, Jochen Wilhelm, Andrea Olschewski, Grazyna Kwapiszewska, Leigh M Marsh
Background: Asthma is a complex chronic inflammatory disease characterised by airway inflammation, remodelling and hyperresponsiveness (AHR). Members of the AP-1 transcription factor family play important roles in the activation of the immune system and the control of cellular responses; however, their role in the development of asthma has not been well studied. We aimed to investigate the role of the lesser known AP-1 family member, Fra2 in experimental asthma. Methods: Phenotypic characterisation and gene expression profiling was performed on Fra2 (TG) overexpressing and wild-type mice...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/30214402/asthma-induction-during-development-and-adult-lung-function-behavior-and-brain-gene-expression
#8
Jasmine I Caulfield, Michael J Caruso, Rebecca A Bourne, Nicole R Chirichella, Laura C Klein, Timothy Craig, Robert H Bonneau, Avery August, Sonia A Cavigelli
In developing youth, allergic asthma is the most common chronic condition, with 9%-10% of youth affected. Asthma onset during childhood and adolescence is further associated with other health issues, particularly psychiatric conditions. To understand causal mechanisms by which developmental asthma may lead to altered behavior, brain and health trajectories, we developed a mouse model of developmental allergic asthma. In the current study, we tested for potential long-term effects of developmental asthma on adult lung function and behavior and brain gene expression associated with emotion and stress regulation...
2018: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/30213216/rescue-of-four-pediatric-patients-with-severe-influenza-a-h3n2-in-weifang-china
#9
Tianhua Li, Ningning Qi, Xiaona Gao, Haili Yu
In this report, we summarize our experience of rescuing four children with severe type A H3N2 influenza from January to February 2017 in Weifang People's Hospital, Shandong Province, China for reference in clinical treatment. Two boys and two girls, ranging in age from 3 months to 6 years, with fever, cough, and asthma, were admitted to the pediatric intensive care unit. All children had severe pulmonary infection with respiratory distress. Three children had myocardial damage, two had liver damage, and one had encephalitis...
September 13, 2018: Journal of International Medical Research
https://www.readbyqxmd.com/read/30193532/recent-developments-in-the-use-of-biologics-targeting-il-5-il-4-or-il-13-in-severe-refractory-asthma
#10
Garry M Walsh
Severe or refractory asthma is seen in approximately 5% of asthmatic subjects who have unsatisfactory symptom control despite adherence to high-dose inhaled glucocorticoid therapies resulting in significant morbidity, reduced quality of life and health-care cost implications. Asthma exhibits marked heterogeneity both clinically and at the molecular phenotypic level requiring specifically targeted treatments to block the key pathways of the disease. Monoclonal antibody-based biologics targeted at inhibition of the type 2 cytokines IL-4, IL-5, and IL-13 have considerable potential as effective treatments for severe asthma...
September 7, 2018: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/30178633/regulatory-t-cells-and-asthma
#11
Sheng-Tao Zhao, Chang-Zheng Wang
Asthma is a chronic disease of airway inflammation due to excessive T helper cell type 2 (Th2) response. Present treatment based on inhalation of synthetic glucocorticoids can only control Th2-driven chronic eosinophilic inflammation, but cannot change the immune tolerance of the body to external allergens. Regulatory T cells (Tregs) are the main negative regulatory cells of the immune response. Tregs play a great role in regulating allergic, autoimmune, graft-versus-host responses, and other immune responses...
2018: Journal of Zhejiang University. Science. B
https://www.readbyqxmd.com/read/30170804/severe-uncontrolled-asthma-and-overall-survival-in-atopic-patients-with-eosinophilic-granulomatosis-with-polyangiitis
#12
Alvise Berti, Gerald W Volcheck, Divi Cornec, Robert J Smyth, Ulrich Specks, Karina A Keogh
BACKGROUND: Although asthma, rhinitis/rhinosinusitis and peripheral eosinophilia are present in virtually all patients with eosinophilic granulomatosis with polyangiitis (EGPA), the role of atopy in these patients is not well defined. OBJECTIVE: To clarify the role of atopy in patients affected with EGPA. METHODS: Clinical, laboratory and standard spirometry data have been abstracted from medical records. Only patients who underwent skin and/or specific IgE testing for common aeroallergens before the vasculitic phase were included...
September 2018: Respiratory Medicine
https://www.readbyqxmd.com/read/30168463/a-rare-cause-of-airway-obstruction-mediastinal-cyst-secondarily-infected-with-mycobacterium-tuberculosis
#13
Bharath A Chhabria, Ritesh Agarwal, Mandeep Garg, Nalini Gupta, Amanjit Bal, Sahajal Dhooria, Inderpaul Singh Sehgal
Mediastinal cysts are mostly congenital, but rarely, infections and malignancies can cause cystic degeneration of enlarged mediastinal lymph nodes. Diagnosis is challenging as the presenting symptoms are nonspecific. Surgical resection is the reference modality both for diagnosis and management. Secondary infection of mediastinal bronchogenic cyst with Mycobacterium tuberculosis is rare. Herein, we describe a young male who was managed as bronchial asthma with inhalational bronchodilators and glucocorticoids...
September 2018: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/30138638/air-pollution-and-resistance-to-inhaled-glucocorticoids-evidence-mechanisms-and-gaps-to-fill
#14
REVIEW
Christopher F Rider, Chris Carlsten
Substantial evidence indicates that cigarette smoke exposure induces resistance to glucocorticoids, the primary maintenance medication in asthma treatment. Modest evidence also suggests that air pollution may reduce the effectiveness of these critical medications. Cigarette smoke, which has clear parallels with air pollution, has been shown to induce glucocorticoid resistance in asthma and it has been speculated that air pollution may have similar effects. However, the literature on an association of air pollution with glucocorticoid resistance is modest to date...
August 20, 2018: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/30105198/a-molecular-simulation-analysis-of-vitamin-d-targets-interleukin-13-il13-as-an-alternative-to-mometasone-in-asthma
#15
Sriroopreddy Ramireddy, P Raghuraman, Pradhyum Khandelwal, Jayanthi Abraham, C Sudandiradoss
Asthma, a chronic lung disease characterized by obstruction of airway passage is characterized by inflammation and hyperresponsiveness with increase in the number of eosinophils. Interleukin-13, plays a significant role in causing inflammation during an asthmatic attack by bronchial constriction. Mometasone, a glucocorticoid has been used as the first line of administration for people affected with asthma for almost a decade. However, in several cases, people treated with mometasone have faced systemic and local side effects...
August 2018: 3 Biotech
https://www.readbyqxmd.com/read/30067401/investigating-fractional-exhaled-nitric-oxide-in-chronic-obstructive-pulmonary-disease-copd-and-asthma-copd-overlap-aco-a-scoping-review
#16
Seyed-Mohammad-Yousof Mostafavi-Pour-Manshadi, Nafiseh Naderi, Miriam Barrecheguren, Abolfazl Dehghan, Jean Bourbeau
Chronic obstructive pulmonary disease (COPD) is the most common fixed airflow limitation. Individuals may present with the features of both asthma and COPD called asthma-COPD overlap (ACO) with more severity and worse health-related quality of life than COPD or asthma. One of the promising biomarkers that could be used in clinical practice to differentiate ACO from COPD is fractional exhaled nitric oxide (FENO ). The role of Fractional exhaled nitric oxide (FENO ) in COPD/ACO remains unknown. This scoping review aims to investigate the role of FENO measurement to differentiate COPD from ACO, to anticipate disease severity/progression and treatment response...
August 1, 2018: COPD
https://www.readbyqxmd.com/read/30064275/value-of-exhaled-nitric-oxide-feno-and-eosinophilia-during-the-exacerbations-of-chronic-obstructive-pulmonary-disease-requiring-hospital-admission
#17
Maria Teresa Río Ramírez, María Antonia Juretschke Moragues, Rocío Fernández González, Virginia Álvarez Rodríguez, Elena Aznar Andrés, Juan Pedro Zabaleta Camino, Rodolfo Romero Pareja, Andrés Esteban de la Torre
The aim of this study was to analyze whether FeNO levels in acute exacerbation of COPD (AECOPD) with hospital admission have better diagnostic value than eosinophilia in blood, and to evaluate its usefulness in predicting a better clinical response. An observational prospective study of patients with AECOPD was carried out. FeNO determinations were made on arrival at the emergency room (ER), at discharge and during stability 3-6 months after discharge. Co-morbidities, bronchodilators, inhaled (IGC) and systemic (SGC) glucocorticoids, eosinophils, systemic inflammation markers (procalcitonin, C-reactive protein), eosinophil cationic protein, and total IgE were collected...
July 31, 2018: COPD
https://www.readbyqxmd.com/read/30059697/expression-of-corticosteroid-regulated-genes-by-pbmcs-in-children-with-asthma
#18
Elena Goleva, Denise C Babineau, Michelle A Gill, Leisa P Jackson, Baomei Shao, Zheng Hu, Andrew H Liu, Cynthia M Visness, Christine A Sorkness, Donald Y M Leung, Alkis Togias, William W Busse
BACKGROUND: Variability in response to inhaled corticosteroids (ICSs) can result in less than optimal asthma control. Development of biomarkers assessing the therapeutic efficacy of corticosteroids is important. OBJECTIVE: We sought to examine whether in vitro PBMC responses to corticosteroids relate to the clinical ICS response. METHODS: PBMCs were collected from 125 children with asthma (6-17 years) at enrollment (visit 0 [V0]) and after 1 year of bimonthly guidelines-based management visits (visit 6 [V6])...
July 27, 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/30001712/anti-inflammatory-duration-of-action-of-fluticasone-furoate-vilanterol-trifenatate-in-asthma-a-cross-over-randomised-controlled-trial
#19
George Bardsley, Peter Daley-Yates, Amanda Baines, Rodger Kempsford, Mathew Williams, Tony Mallon, Irene Braithwaite, Kylie Riddell, Shashidhar Joshi, Philippe Bareille, Richard Beasley, James Fingleton
BACKGROUND: Fluticasone furoate/Vilanterol trifenatate (FF/VI) is an inhaled corticosteroid/long-acting beta-agonist combination with a prolonged bronchodilator duration of action. We characterised the time-course of onset and offset of airway anti-inflammatory action of FF/VI, as assessed by fraction of exhaled nitric oxide (FeNO), and compared this to the bronchodilator duration of action. METHODS: A single-centre, randomised, double-blind, placebo-controlled, two-period, crossover study was undertaken in 28 steroid-naïve adults with asthma...
July 13, 2018: Respiratory Research
https://www.readbyqxmd.com/read/29978485/mucin-1-deficiency-mediates-corticosteroid-insensitivity-in-asthma
#20
Javier Milara, Anselm Morell, Alfredo de Diego, Enrique Artigues, Esteban Morcillo, Julio Cortijo
BACKGROUND: The loss of corticosteroid efficacy is an important issue in severe asthma management and may lead to poor asthma control and deterioration of airflow. Recent data indicate that Mucin 1 (MUC1) membrane mucin can mediate corticosteroid efficacy in chronic rhinosinusitis, but the role of MUC1 in uncontrolled severe asthma is unknown. The objective was to analyze the previously unexplored role of MUC1 on corticosteroid efficacy in asthma. METHODS: Mucin 1 expression was evaluated by real-time PCR in human bronchial epithelial cells (HBEC) and blood neutrophils from uncontrolled severe asthma (n = 27), controlled mild asthma (n = 16), and healthy subjects (n = 13)...
July 6, 2018: Allergy
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