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chronic airway inflammation

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https://www.readbyqxmd.com/read/28332897/characteristics-of-non-smoking-adult-asthma-patients-with-chronic-airflow-limitation
#1
TunnRen Tay, Xuening Choo, Rosna Ihsan, Hsiao Peng Toh, Hang Siang Wong, Augustine Tee
OBJECTIVE: Chronic airflow limitation (CAL) can develop in a subgroup of patients with asthma. Characterising these patients is important because reduced lung function is a risk factor for adverse asthma outcomes. We hypothesised that heterogeneity in patients with CAL may be influenced by age at asthma onset. We first compared never-smoking asthma patients with and without CAL, and subsequently examined the differences between patients with late and early-onset asthma within the CAL cohort...
March 23, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/28331109/maintenance-of-memory-type-pathogenic-th2-cells-within-inducible-bronchus-associated-lymphoid-tissue-ibalt-in-chronic-allergic-airway-inflammation
#2
Kiyoshi Hirahara, Kenta Shinoda, Yusuke Endo, Tomomi Ichikawa, Toshinori Nakayama
No abstract text is available yet for this article.
2017: Arerugī, [Allergy]
https://www.readbyqxmd.com/read/28330503/caffeine-modulates-glucocorticoid-induced-expression-of-ctgf-in-lung-epithelial-cells-and-fibroblasts
#3
Markus Fehrholz, Kirsten Glaser, Christian P Speer, Silvia Seidenspinner, Barbara Ottensmeier, Steffen Kunzmann
BACKGROUND: Although caffeine and glucocorticoids are frequently used to treat chronic lung disease in preterm neonates, potential interactions are largely unknown. While anti-inflammatory effects of glucocorticoids are well defined, their impact on airway remodeling is less characterized. Caffeine has been ascribed to positive effects on airway inflammation as well as remodeling. Connective tissue growth factor (CTGF, CCN2) plays a key role in airway remodeling and has been implicated in the pathogenesis of chronic lung diseases such as bronchopulmonary dysplasia (BPD) in preterm infants...
March 23, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28330430/effect-of-waterpipe-tobacco-smoking-on-airway-inflammation-in-murine-model-of-asthma
#4
Nour A Al-Sawalha, Ala'a M Migdadi, Karem H Alzoubi, Omar F Khabour, Nidal A Qinna
OBJECTIVE: There has been an increase in the popularity of waterpipe tobacco smoking (WTS) worldwide, especially in the younger population, including asthma patients. In this study, we investigated the effects of waterpipe smoking on airway inflammation, cytokine levels and oxidative stress markers in an antigen-driven murine model of asthma. MATERIALS AND METHODS: Balb/c mice were divided into four groups; (1) control (received fresh air, ovalbumin sensitization and saline challenge), (2) WTS (received WTS, ovalbumin sensitization and saline challenge), (3) Ova S/C (received fresh air, ovalbumin sensitization and ovalbumin challenge) and (4) simultaneous WTS and Ova S/C (received WTS, ovalbumin sensitization and ovalbumin challenge)...
February 2017: Inhalation Toxicology
https://www.readbyqxmd.com/read/28325523/total-management-of-chronic-obstructive-pulmonary-disease-copd-as-an-independent-risk-factor-for-cardiovascular-disease
#5
REVIEW
Katsuya Onishi
Patients with cardiovascular disease (CVD) often have multiple comorbid conditions that may interact with each other, confound the choice of treatments, and reduce mortality. Chronic obstructive pulmonary disease (COPD) is one of the most important comorbidities of CVD, which causes serious consequences in patients with ischemic heart disease, stroke, arrhythmia, and heart failure. COPD shares common risk factors such as tobacco smoking and aging with CVD, is associated with less physical activity, and produces systemic inflammation and oxidative stress...
March 18, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28322440/psychological-therapies-for-the-treatment-of-anxiety-disorders-in-chronic-obstructive-pulmonary-disease
#6
REVIEW
Zafar A Usmani, Kristin V Carson, Karen Heslop, Adrian J Esterman, Anthony De Soyza, Brian J Smith
BACKGROUND: Chronic obstructive pulmonary disease (COPD) (commonly referred to as chronic bronchitis and emphysema) is a chronic lung condition characterised by the inflammation of airways and irreversible destruction of pulmonary tissue leading to progressively worsening dyspnoea. It is a leading international cause of disability and death in adults. Evidence suggests that there is an increased prevalence of anxiety disorders in people with COPD. The severity of anxiety has been shown to correlate with the severity of COPD, however anxiety can occur with all stages of COPD severity...
March 21, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28320793/rct-of-the-effect-of-berryfruit-polyphenolic-cultivar-extract-in-mild-steroid-naive-asthma-a-cross-over-placebo-controlled-study
#7
Sharon Power, Mathew Williams, Alex Semprini, Claire Munro, Rachel Caswell-Smith, Janine Pilcher, Mark Holliday, James Fingleton, Jacquie Harper, Roger Hurst, Mark Weatherall, Richard Beasley, Irene Braithwaite
OBJECTIVE: There is preclinical evidence that consumption of berryfruit extract may reduce chronic airways inflammation and modify airway remodelling in allergen-induced models of lung inflammation. We investigated the effect of berryfruit extract on the fractional expired nitric oxide (FeNO), a biomarker of eosinophilic airways inflammation, in adults with steroid-naïve asthma. DESIGN: Randomised placebo-controlled cross-over double-blind trial. SETTING: Single-centre community-based trial...
March 20, 2017: BMJ Open
https://www.readbyqxmd.com/read/28318118/distinct-expression-of-nk2-homeobox-1-nkx2-1-and-goblet-cell-hyperplasia-in-nasal-polyps-with-different-endotypes
#8
Jintao Du, Luo Ba, Bo Li, Feng Liu, Xianting Hu, Jie Zhang, Yafeng Liu, Junming Xian, Sixi Liu, Huabin Li
BACKGROUND: Decreased expression of airway epithelial-specific transcription factor NK2 homeobox 1 (NKX2-1) was associated with allergic inflammation in asthma patients. However, the expression and role of NKX2-1 in nasal polyps (NPs) with different endotypes were undefined yet. METHODS: We examined the expression of key cytokines (interleukin [IL]-4 IL-5, IL-13, and IL-17A, etc.) and NKX2-1 in NPs with different endotypes and control tissues by immunohistochemistry staining, qualitative polymerase chain reaction (qPCR), enzyme-linked immunosorbent assay (ELISA), and Western blot analysis...
March 20, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28315490/neutralization-of-both-il-1%C3%AE-il-1%C3%AE-plays-a-major-role-in-suppressing-combined-cigarette-smoke-virus-induced-pulmonary-inflammation-in-mice
#9
Hannes Bucher, Samuel Mang, Martina Keck, Michèl Przibilla, David Lamb, Felix Schiele, Mareike Wittenbrink, Klaus Fuchs, Birgit Jung, Klaus J Erb, Daniel Peter
Smoking is an important risk factor for the development of chronic obstructive pulmonary disease (COPD) and viral infections are believed to be major triggers of exacerbations, which periodically lead to a worsening of symptoms. The pro-inflammatory IL-1 family members IL-1α and IL-1β are increased in COPD patients and might contribute to disease pathology. We investigated whether individual or combined inhibition of these cytokines reduced lung inflammation in cigarette smoke (CS)-exposed and H1N1-infected BALB/c mice...
March 15, 2017: Pulmonary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28303238/feasibility-of-a-peer-led-asthma-and-smoking-prevention-project-in-australian-schools-with-high-indigenous-youth
#10
Gabrielle B McCallum, Anne B Chang, Cate A Wilson, Helen L Petsky, Jan Saunders, Susan J Pizzutto, Siew Choo Su, Smita Shah
BACKGROUND: The high global burden of asthma and tobacco smoking among Indigenous people may potentially be reduced by appropriate interventions that target prevention of tobacco smoke uptake and improved asthma management. The latter includes targeted treatment based on airway inflammation. We undertook a feasibility study in two Darwin schools with a high proportion of Indigenous youth to determine the feasibility of an innovative, peer-led, school-based education program called the Asthma and Smoking Prevention Project (ASPP)...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28303154/mesenchymal-stem-cell-administration-in-patients-with-chronic-obstructive-pulmonary-disease-state-of-the-science
#11
REVIEW
Shih-Lung Cheng, Ching-Hsiung Lin, Chao-Ling Yao
Patients with chronic obstructive pulmonary disease (COPD) have chronic, irreversible airway inflammation; currently, there is no effective or curative treatment and the main goals of COPD management are to mitigate symptoms and improve patients' quality of life. Stem cell based therapy offers a promising therapeutic approach that has shown potential in diverse degenerative lung diseases. Preclinical studies have demonstrated encouraging outcomes of mesenchymal stem/stromal cells (MSCs) therapy for lung disorders including emphysema, bronchopulmonary dysplasia, fibrosis, and acute respiratory distress syndrome...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28298400/antimicrobial-peptide-levels-are-linked-to-airway-inflammation-bacterial-colonisation-and-exacerbations-in-chronic-obstructive-pulmonary-disease
#12
Louise J P Persson, Marianne Aanerud, Jon A Hardie, Roy Miodini Nilsen, Per S Bakke, Tomas M Eagan, Pieter S Hiemstra
Antimicrobial peptides (AMPs) are effectors of host defence against infection, inflammation and wound repair. We aimed to study AMP levels in stable chronic obstructive pulmonary disease (COPD) and during acute exacerbations of COPD (AECOPD), and to examine their relation to clinical parameters and inflammatory markers.The 3-year Bergen COPD Cohort Study included 433 COPD patients and 325 controls. Induced sputum was obtained and analysed for levels of the AMPs human cathelicidin (hCAP18/LL-37) and secretory leukocyte protease inhibitor (SLPI), and for the inflammatory markers interleukin (IL)-8, IL-6 and tumour necrosis factor-α (TNF-α) using immunoassays...
March 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28293932/effect-of-tio%C3%A2-nanoparticles-on-inflammasome-mediated-airway-inflammation-and-responsiveness
#13
Byeong Gon Kim, Pureun Haneul Lee, Sun Hye Lee, Moo Kyun Park, An Soo Jang
PURPOSE: Nanoparticles (NPs) may cause cell and tissue damage, leading to local and systemic inflammatory responses and adverse effects on health due to the inhalation of particulate matter. The inflammasome is a major regulator of inflammation through its activation of pro-caspase-1, which cleaves pro-interleukin-1β (pro-IL-1β) into its mature form and may induce acute and chronic immune responses to NPs. However, little is known about the response of the inflammasome to NP exposure via the airways in asthma...
May 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/28293414/galectin-3-an-early-predictive-biomarker-of-modulation-of-airway-remodeling-in-patients-with-severe-asthma-treated-with-omalizumab-for-36%C3%A2-months
#14
Anna Maria Riccio, Pierluigi Mauri, Laura De Ferrari, Rossana Rossi, Dario Di Silvestre, Louise Benazzi, Alessandra Chiappori, Roberto Walter Dal Negro, Claudio Micheletto, Giorgio Walter Canonica
BACKGROUND: Bronchial asthma is a heterogeneous disease characterized by three cardinal features: chronic inflammation, variable airflow obstruction, and airway hyperresponsiveness. Asthma has traditionally been defined using nonspecific clinical and physiologic variables that encompass multiple phenotypes and are treated with nonspecific anti-inflammatory therapies. Based on the modulation of airway remodeling after 12 months of anti-immunoglobulin E (IgE) treatment, we identified two phenotypes (omalizumab responder, OR; and non-omalizumab responder, NOR) and performed morphometric analysis of bronchial biopsy specimens...
2017: Clinical and Translational Allergy
https://www.readbyqxmd.com/read/28293189/investigation-into-the-role-of-pi3k-and-jak3-kinase-inhibitors-in-murine-models-of-asthma
#15
Akshaya D Wagh, Manoranjan Sharma, Jogeshwar Mahapatra, Abhijeet Chatterjee, Mukul Jain, Veeranjaneyulu Addepalli
Asthma is a clinical disorder commonly characterized by chronic eosinophilic inflammation, remodeling and hyper responsiveness of the airways. However, the kinases like Phosphoinositide 3 kinase (PI3K) and Janus kinase 3 (JAK3) are involved in mast cell proliferation, activation, recruitment, migration, and prolonged survival of inflammatory cells. The present study was designed to evaluate the in-vivo comparative effects of two kinase inhibitors on airway inflammation and airway remodeling in acute and chronic models of asthma...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28282951/interactions-between-neutrophils-and-pseudomonas-aeruginosa-in-cystic-fibrosis
#16
REVIEW
Balázs Rada
Cystic fibrosis (CF) affects 70,000 patients worldwide. Morbidity and mortality in CF is largely caused by lung complications due to the triad of impaired mucociliary clearance, microbial infections and chronic inflammation. Cystic fibrosis airway inflammation is mediated by robust infiltration of polymorphonuclear neutrophil granulocytes (PMNs, neutrophils). Neutrophils are not capable of clearing lung infections and contribute to tissue damage by releasing their dangerous cargo. Pseudomonas aeruginosa is an opportunistic pathogen causing infections in immunocompromised individuals...
March 9, 2017: Pathogens
https://www.readbyqxmd.com/read/28282577/therapeutic-efficacy-of-a-co-blockade-of-il-13-and-il-25-on-airway-inflammation-and-remodeling-in-a-mouse-model-of-asthma
#17
Fang-Qi Zhang, Xin-Peng Han, Fang Zhang, Xuan Ma, Dong Xiang, Xue-Min Yang, Hai-Feng Ou-Yang, Zhikui Li
Repeated airway inflammation and unremitting remodeling provoke irreversible pulmonary dysfunction and resistance to current drugs in patients with chronic bronchial asthma. Interleukin (IL)-13 and IL-25 play an important role in airway inflammation and remodeling in asthma. We aimed to investigate whether co-inhibiting IL-13 and IL-25 can effectively down-regulate allergen-induced airway inflammation and remodeling in mice. Mice with asthma induced by chronic exposure to ovalbumin (OVA) were given soluble IL-13 receptor α2 (sIL-13R) or soluble IL-25 receptor (sIL-25R) protein alone and in combination to neutralize the bioactivity of IL-13 and IL-25, and relevant airway inflammation and remodeling experiments were performed...
March 7, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28279894/inhalation-of-progesterone-inhibits-chronic-airway-inflammation-of-mice-exposed-to-ozone
#18
Xia Fei, Wuping Bao, Pengyu Zhang, Xue Zhang, Guoqing Zhang, Yingying Zhang, Xin Zhou, Min Zhang
Chronic ozone exposure leads to a model of mice with lung inflammation, emphysema and oxidative stress. Progesterone plays an important role in attenuating the neuroinflammation. We assume that progesterone will reduce the chronic airway inflammation exposed to ozone and evaluate whether combination of progesterone with glucocorticoids results in synergistic effects. C57/BL6 mice were exposed to ozone (2.5ppm, 3h) 12 times over 6 weeks, and were administered with progesterone (0.03 or 0.3mg/L; inhaled) alone or combined with budesonide (BUD) (0...
March 6, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28279655/nontypeable-haemophilus-influenzae-promoted-proliferation-of-kras-induced-early-adenomatous-lesions-is-completely-dependent-on-toll-like-receptor-signaling
#19
Christopher Jungnickel, Philipp A Schnabel, Rainer Bohle, Rainer Wiewrodt, Christian Herr, Robert Bals, Christoph Beisswenger
Chronic obstructive pulmonary disease is a risk factor for lung cancer. COPD is characterized by chronic airway inflammation and lung infections. The airways of patients with COPD are frequently colonized with bacteria [eg, nontypeable Haemophilus influenzae (NTHi)] that cause pulmonary inflammation and exacerbations. Pulmonary adenocarcinomas are frequently associated with an activating mutation in the KRAS gene. We determined the function of Toll-like receptor (TLR) signaling on the progression of KRas-induced early adenomatous lesions in the lung...
March 6, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28266165/il33-and-il1rl1-variants-are-associated-with-asthma-and-atopy-in-a-brazilian-population
#20
G A Queiroz, R S Costa, N M Alcantara-Neves, G Nunes de Oliveira Costa, M L Barreto, V L Carneiro, C A Figueiredo
Atopic asthma is a chronic inflammatory disease in airways resulting from genetic and environmental factors, characterized by production of the Th2 cytokines interleukin-4 (IL-4), interleukin-5 (IL-5) and interleukin-13 (IL-13). Interleukin-33 (IL-33) appears to be a potent inducer of Th2 immune response. This occurs when IL-33 binds and activates its receptor, the membrane ST2 (ST2L) in mast cells, dendritic cells, basophils, eosinophils, innate lymphoids and Th2 cells, leading to the release of these cytokines and intensifying allergic inflammation...
April 2017: International Journal of Immunogenetics
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