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https://www.readbyqxmd.com/read/28721202/defining-the-inflammatory-signature-of-human-lung-explant-tissue-in-the-presence-and-absence-of-glucocorticoid
#1
Tracy L Rimington, Emily Hodge, Charlotte K Billington, Sangita Bhaker, Binaya K C, Iain Kilty, Scott Jelinsky, Ian P Hall, Ian Sayers
BACKGROUND:  Airway inflammation is a feature of many respiratory diseases and there is a need for newer, more effective anti-inflammatory compounds. The aim of this study was to develop an ex vivo human lung explant model which can be used to help study the mechanisms underlying inflammatory responses and which can provide a tool to aid drug discovery for inflammatory respiratory diseases such as asthma and COPD. METHOD:  Parenchymal lung tissue from 6 individual donors was dissected and cultured with two pro-inflammatory stimuli, lipopolysaccharide (LPS) (1 µg/ml) and interleukin-1 beta (IL-1β) (10 ng/ml) in the presence or absence of dexamethasone (1 µM)...
2017: F1000Research
https://www.readbyqxmd.com/read/28696811/prevalence-clinical-characteristics-and-morbidity-of-the-asthma-copd-overlap-in-a-general-population-sample
#2
Linda Ekerljung, Roxana Mincheva, Stig Hagstad, Anders Bjerg, Gunilla Telg, Georgios Stratelis, Jan Lötvall
Objective Although asthma and COPD have been regarded as distinct conditions, emerging literature suggests that overlapping phenotypes exists, asthma-COPD overlap (ACO). The aim of this study was to describe prevalence, patient characteristics and morbidity of ACO. Methods From a cross-sectional population sample, the West Sweden Asthma Study, subjects with suspected asthma, chronic bronchitis or COPD, and a random sample, were invited to clinical examinations. ACO was defined as doctors diagnosed asthma, or clear clinical signs of asthma at examination, with a FEV1/FVC<0...
July 11, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/28694695/relationship-between-blood-eosinophils-clinical-characteristics-and-mortality-in-patients-with-copd
#3
Maeva Zysman, Gaëtan Deslee, Denis Caillaud, Pascal Chanez, Roger Escamilla, Isabelle Court-Fortune, Pascale Nesme-Meyer, Thierry Perez, Jean-Louis Paillasseur, Christophe Pinet, Gilles Jebrak, Nicolas Roche, Pierre-Régis Burgel
In patients with COPD, there is controversy regarding the association of blood eosinophil (Eos) levels with 1) exacerbation frequency and 2) the effect of inhaled corticosteroids for prevention of exacerbations. To determine whether Eos define subgroups of patients exhibiting attributes of COPD clinical phenotypes, we compared clinical features and mortality rates in COPD patients from the Initiatives BPCO French cohort categorized using different thresholds of blood Eos levels. The following data were collected at inclusion: medical and smoking history, occupational exposures, dyspnea, cough and sputum production, exacerbations in the previous year, history of allergy and asthma, nasal symptoms, body mass index, St George Respiratory Questionnaire (SGRQ) total score, post-bronchodilator spirometry, comorbidities, and medications...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28677827/the-overlaps-of-asthma-or-copd-with-osa-a-focused-review
#4
REVIEW
Robert L Owens, Madalina M Macrea, Mihaela Teodorescu
Asthma, chronic obstructive pulmonary disease (COPD) and obstructive sleep apnoea (OSA) are the most common respiratory disorders worldwide. Given demographic and environmental changes, prevalence for each is likely to increase. Although exact numbers are not known, based on chance alone, many people will be affected by both lower airways obstruction and concomitant upper airway obstruction during sleep. Some recent studies suggest that there is a reciprocal interaction, with chronic lung disease predisposing to OSA, and OSA worsening control and outcomes from chronic lung disease...
July 5, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28677357/asthma-copd-overlap-shows-favorable-clinical-outcomes-compared-to-pure-copd-in-a-korean-copd-cohort
#5
Hye Jung Park, Min Kwang Byun, Hyung Jung Kim, Chul Min Ahn, Jin Hwa Lee, Kyeong Cheol Shin, Soo Taek Uh, Seung Won Ra, Kwang Ha Yoo, Ki Suck Jung
PURPOSE: Comparisons of the characteristics of chronic obstructive pulmonary disease (COPD) and asthma-COPD overlap syndrome (ACOS) have been the focus of several studies since the diseases were defined by the Global Initiative for Asthma and Global Initiative for Chronic Obstructive Lung Disease guidelines. However, no consensus is available yet. In this study, we aimed to compare the characteristics of asthma-COPD overlap (ACO) and COPD. METHODS: We retrospectively reviewed 1,504 patients with COPD in a Korean COPD Subtype Study cohort...
September 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/28671769/chronic-coffee-consumption-and-respiratory-disease-a-systematic-review
#6
Tiago M Alfaro, Rita A Monteiro, Rodrigo A Cunha, Carlos Robalo Cordeiro
PURPOSE: The widespread consumption of coffee means that any biological effects from its use can lead to significant public health consequences. Chronic pulmonary diseases are extremely prevalent and responsible for one of every six deaths on a global level. METHODS: We searched major medical databases for studies reporting on the effects of coffee or caffeine consumption on a wide range of non-malignant respiratory outcomes, including incidence, prevalence, evolution or severity of respiratory disease in adults...
July 3, 2017: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/28670116/treatment-trends-in-patients-with-asthma-copd-overlap-syndrome-in-a-copd-cohort-findings-from-a-real-world-survey
#7
Bo Ding, Mark Small
BACKGROUND: Asthma and chronic obstructive pulmonary disease (COPD) overlap syndrome (ACOS) is an increasingly recognized phenotype. Few randomized clinical trials have been conducted in patients with ACOS; therefore, scientific evidence concerning ACOS is scarce and a therapeutic approach remains unclear. The aim of this study was to evaluate current treatment trends for patients with ACOS, identified as those with a dual definition of asthma and COPD, in a real-world COPD cohort. METHODS: Data were analyzed from patients with asthma and COPD in the USA, France, Germany, Italy, Spain, and the UK who participated in the 2012 and 2013 Adelphi Respiratory Disease Specific Programmes (DSPs)...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28669932/cough-and-airway-disease-the-role-of-ion-channels
#8
REVIEW
Sara J Bonvini, Maria G Belvisi
Cough is the most common reason for patients to visit a primary care physician, yet it remains an unmet medical need. It can be idiopathic in nature but can also be a troublesome symptom across chronic lung diseases such as asthma, COPD and idiopathic pulmonary fibrosis (IPF). Chronic cough affects up to 12% of the population and yet there are no safe and effective therapies. The cough reflex is regulated by vagal, sensory afferent nerves which innervate the airway. The Transient Receptor Potential (TRP) family of ion channels are expressed on sensory nerve terminals, and when activated can evoke cough...
June 29, 2017: Pulmonary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28667071/pulmonary-immunity-to-viruses
#9
REVIEW
S Rameeza Allie, Troy D Randall
Mucosal surfaces, such as the respiratory epithelium, are directly exposed to the external environment and therefore, are highly susceptible to viral infection. As a result, the respiratory tract has evolved a variety of innate and adaptive immune defenses in order to prevent viral infection or promote the rapid destruction of infected cells and facilitate the clearance of the infecting virus. Successful adaptive immune responses often lead to a functional state of immune memory, in which memory lymphocytes and circulating antibodies entirely prevent or lessen the severity of subsequent infections with the same virus...
July 15, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28663549/determinants-of-initial-inhaled-corticosteroid-use-in-patients-with-gold-a-b-copd-a-retrospective-study-of-uk-general-practice
#10
James D Chalmers, Abigail Tebboth, Alicia Gayle, Andrew Ternouth, Nick Ramscar
Initial use of inhaled corticosteroid therapy is common in patients with Global Initiative for Chronic Obstructive Lung Disease (GOLD) A or B chronic obstructive pulmonary disease, contrary to GOLD guidelines. We investigated UK prescribing of inhaled corticosteroid therapy in these patients, to identify predictors of inhaled corticosteroid use in newly diagnosed chronic obstructive pulmonary disease patients. A cohort of newly diagnosed GOLD A/B chronic obstructive pulmonary disease patients was identified from the UK Clinical Practice Research Datalink (June 2005-June 2015)...
June 29, 2017: NPJ Primary Care Respiratory Medicine
https://www.readbyqxmd.com/read/28660119/different-types-of-housing-and-respiratory-health-outcomes
#11
Wen Qi Gan, Wayne T Sanderson, Steven R Browning, David M Mannino
Evidence has shown that housing conditions may substantially influence the health of residents. Different types of housing have different structures and construction materials, which may affect indoor environment and housing conditions. This study aimed to investigate whether people living in different types of housing have different respiratory health outcomes. The data from the 1999-2006 National Health and Nutrition Examination Survey were used for the analyses. The types of housing included houses, townhouses, apartments, and mobile homes...
September 2017: Preventive Medicine Reports
https://www.readbyqxmd.com/read/28642115/anti-tnf%C3%AE-therapy-in-inflammatory-lung-diseases-bn
#12
REVIEW
Rama Malaviya, Jeffrey D Laskin, Debra L Laskin
Increased levels of tumor necrosis factor (TNF) α have been linked to a number of pulmonary inflammatory diseases including asthma, chronic obstructive pulmonary disease (COPD), acute lung injury (ALI)/acute respiratory distress syndrome (ARDS), sarcoidosis, and interstitial pulmonary fibrosis (IPF). TNFα plays multiple roles in disease pathology by inducing an accumulation of inflammatory cells, stimulating the generation of inflammatory mediators, and causing oxidative and nitrosative stress, airway hyperresponsiveness and tissue remodeling...
June 19, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28633906/respiratory-syncytial-virus-rsv-in-adult-emergency-department-patients-do-emergency-providers-consider-rsv-as-an-admission-diagnosis-a-retrospective-observational-study-carried-out-at-massachusetts-general-hospital-boston-ma
#13
William Binder, Jill Thorsen, Pierre Borczuk
BACKGROUND: Respiratory Syncytial Virus (RSV) has been recognized for over half a century as a cause of morbidity in infants and children. Over the past 20years, data has emerged linking RSV as a cause of illness in adults resulting in 177,000 annual hospitalizations and up to 14,000 deaths among older adults. OBJECTIVE: Characterize clinical variables in a cohort of adult RSV patients. We hypothesize that emergency physicians do not routinely consider RSV in the differential diagnosis (DDx) of influenza like illness...
June 11, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28629362/long-term-exposure-to-ambient-ultrafine-particles-and-respiratory-disease-incidence-in-in-toronto-canada-a-cohort-study
#14
Scott Weichenthal, Li Bai, Marianne Hatzopoulou, Keith Van Ryswyk, Jeffrey C Kwong, Michael Jerrett, Aaron van Donkelaar, Randall V Martin, Richard T Burnett, Hong Lu, Hong Chen
BACKGROUND: Little is known about the long-term health effects of ambient ultrafine particles (<0.1 μm) (UFPs) including their association with respiratory disease incidence. In this study, we examined the relationship between long-term exposure to ambient UFPs and the incidence of lung cancer, adult-onset asthma, and chronic obstructive pulmonary disease (COPD). METHODS: Our study cohort included approximately 1.1 million adults who resided in Toronto, Canada and who were followed for disease incidence between 1996 and 2012...
June 19, 2017: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/28618108/chronic-respiratory-disease-in-the-regional-and-remote-population-of-the-northern-territory-top-end-a-perspective-from-the-specialist-respiratory-outreach-service
#15
Anuk Kruavit, Melissa Fox, Rebecca Pearson, Subash Heraganahally
OBJECTIVE: To study the demographic, rates and types of chronic respiratory conditions in Indigenous and non-Indigenous patients in regional and remote communities of Northern Territory Top End, who were referred to the specialist respiratory outreach service. DESIGN: A retrospective, observational study over a 2 years period. SETTING: Remote community health clinics within the Northern Territory Top End visited by the specialist respiratory outreach team...
June 15, 2017: Australian Journal of Rural Health
https://www.readbyqxmd.com/read/28596972/targets-of-neutrophil-influx-and-weaponry-therapeutic-opportunities-for-chronic-obstructive-airway-disease
#16
REVIEW
Carina Kärrman Mårdh, James Root, Mohib Uddin, Kristina Stenvall, Anna Malmgren, Kostas Karabelas, Matthew Thomas
Neutrophils are important effector cells of antimicrobial immunity in an acute inflammatory response, with a primary role in the clearance of extracellular pathogens. However, in respiratory diseases such as asthma and chronic obstructive pulmonary disease (COPD), there is excessive infiltration and activation of neutrophils, subsequent production of reactive oxygen species, and release of serine proteases, matrix metalloproteinases, and myeloperoxidase-resulting in collateral damage as the cells infiltrate into the tissue...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28592098/-the-effect-of-short-term-exposure-to-ambient-no-2-on-lung-function-and-fractional-exhaled-nitric-oxide-in-33-chronic-obstructive-pulmonary-disease-patients
#17
J Shan, Y Ni, W Dong, J H Xu, L Pan, H Y Li, X Yang, S W Wu, Y H Chen, F R Deng, X B Guo
Objectives: To investigate the effect of short-term exposure to ambient NO(2) has influence on lung function and fractional exhaled nitric oxide (FeNO) in chronic obstructive pulmonary disease (COPD) patients. Methods: A panel of doctor-diagnosed stable COPD patients (n=33) were recruited and repeatedly measured for lung function and FeNO from December 2013 to October 2014. The patients who lived in Beijing for more than one year and aged between 60 and 85 years old were included in the study. We excluded patients with asthma, bronchial tensor, lung cancer and other respiratory disorders other than chronic obstructive pulmonary disease and occupational exposure and chest trauma surgery patients...
June 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/28589151/advanced-role-of-neutrophils-in-common-respiratory-diseases
#18
REVIEW
Jinping Liu, Zhiqiang Pang, Guoqiang Wang, Xuewa Guan, Keyong Fang, Ziyan Wang, Fang Wang
Respiratory diseases, always being a threat towards the health of people all over the world, are most tightly associated with immune system. Neutrophils serve as an important component of immune defense barrier linking innate and adaptive immunity. They participate in the clearance of exogenous pathogens and endogenous cell debris and play an essential role in the pathogenesis of many respiratory diseases. However, the pathological mechanism of neutrophils remains complex and obscure. The traditional roles of neutrophils in severe asthma, chronic obstructive pulmonary diseases (COPD), pneumonia, lung cancer, pulmonary fibrosis, bronchitis, and bronchiolitis had already been reviewed...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28558829/which-bronchodilator-reversibility-criteria-can-predict-severe-acute-exacerbation-in-chronic-obstructive-pulmonary-disease-patients
#19
Junghyun Kim, Woo Jin Kim, Chang-Hoon Lee, Sang Haak Lee, Myung-Goo Lee, Kyeong-Cheol Shin, Kwang Ha Yoo, Ji-Hyun Lee, Seong Yong Lim, Ju Ock Na, Hun-Gyu Hwang, Yoonki Hong, Myoung Nam Lim, Chul-Gyu Yoo, Ki Suck Jung, Sang-Do Lee
BACKGROUND: It is unclear whether various bronchodilator reversibility (BDR) criteria affect the prognosis of chronic obstructive pulmonary disease (COPD). The aim of this study is to evaluate the impact of positive BDR defined according to various BDR criteria on the risk of severe acute exacerbation (AE) in COPD patients. METHODS: Patients from four prospective COPD cohorts in South Korea who underwent follow-up for at least 1 year were enrolled in this study...
May 30, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28554925/a-cross-sectional-study-on-prevalence-of-chronic-obstructive-pulmonary-disease-copd-in-india-rationale-and-methods
#20
Prabu Rajkumar, Kamaraj Pattabi, Selvaraj Vadivoo, Arvind Bhome, Bill Brashier, Prashanta Bhattacharya, Sanjay M Mehendale
BACKGROUND: Chronic obstructive pulmonary disease (COPD) is a common preventable and treatable chronic respiratory disease, which affects 210 million people globally. Global and national guidelines exist for the management of COPD. Although evidence-based, they are inadequate to address the phenotypic and genotypic heterogeneity in India. Co-existence of other chronic respiratory diseases can adversely influence the prognosis of COPD.India has a huge burden of COPD with various risk factors and comorbid conditions...
May 29, 2017: BMJ Open
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