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https://www.readbyqxmd.com/read/28648016/-mechanisms-of-cytoskeleton-and-pi3k%C3%AE-rhoa-in-fine-particulate-matter-deteriorating-phagocytosis-defect-of-alveolar-macrophage-in-mice-with-chronic-obstructive-pulmonary-disease
#1
Q Xia, S T Hu, X L Zeng, H R Bao, X J Liu
Objective: To explore the mechanism of cytoskeleton and PI3Kδ-RhoA in fine particulate matter deteriorating phagocytosis defect of alveolar macrophage (AM) in chronic obstructive pulmonary disease (COPD) mice. Methods: Forty mice were randomly divided into four groups: health control group, COPD group, health PM2.5 group, COPD PM2.5 group and with ten in each group. A mouse model of COPD was established by cigarette smoke exposure, and health PM2.5 group and COPD PM2.5 group mice were given PM2.5 (588 μg/m(3)) aerosol inhalation for 90 days...
June 27, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28647206/ct-at-onset-of-chronic-lung-allograft-dysfunction-in-lung-transplant-patients-predicts-development-of-the-restrictive-phenotype-and-survival
#2
Sabine Dettmer, Hoen-Oh Shin, Jens Vogel-Claussen, Max Westphal, Axel Haverich, Gregor Warnecke, Tobias Welte, Frank Wacker, Jens Gottlieb, Hendrik Suhling
PURPOSE: To describe early signs for restrictive subtype of chronic lung allograft dysfunction (CLAD) after lung transplantation in computed tomography (CT) and to evaluate the predictive value for disease progression and survival. MATERIAL AND METHODS: 52 CT examinations in lung transplant patients at CLAD onset were scored for CT features referring to airways disease, parenchymal or pleural abnormality. Patients with and without later development of restrictive CLAD (TLC≤80%) were compared...
June 15, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28646903/human-adipose-tissue-mesenchymal-stromal-cells-and-their-extracellular-vesicles-act-differentially-on-lung-mechanics-and-inflammation-in-experimental-allergic-asthma
#3
Ligia Lins de Castro, Debora Gonçalves Xisto, Jamil Zola Kitoko, Fernanda Ferreira Cruz, Priscilla Christina Olsen, Patricia Albuquerque Garcia Redondo, Tatiana Paula Teixeira Ferreira, Daniel Jay Weiss, Marco Aurélio Martins, Marcelo Marcos Morales, Patricia Rieken Macedo Rocco
BACKGROUND: Asthma is a chronic inflammatory disease that can be difficult to treat due to its complex pathophysiology. Most current drugs focus on controlling the inflammatory process, but are unable to revert the changes of tissue remodeling. Human mesenchymal stromal cells (MSCs) are effective at reducing inflammation and tissue remodeling; nevertheless, no study has evaluated the therapeutic effects of extracellular vesicles (EVs) obtained from human adipose tissue-derived MSCs (AD-MSC) on established airway remodeling in experimental allergic asthma...
June 24, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28646553/epithelial-mesenchymal-transition-emt-a-spectrum-of-states-role-in-lung-development-homeostasis-and-disease
#4
REVIEW
Mohit Kumar Jolly, Chris Ward, Mathew Suji Eapen, Stephen Myers, Oskar Hallgren, Herbert Levine, Sukhwinder Singh Sohal
Epithelial Mesenchymal Transition (EMT) plays key roles during lung development and many lung diseases such as Chronic Obstructive Pulmonary Disease (COPD), lung cancer and pulmonary fibrosis. Here, integrating morphological observations with underlying molecular mechanisms, we highlight the functional role of EMT in lung development and injury repair, and discuss how it can contribute to pathogenesis of chronic lung disease. We discuss the evidence of manifestation of EMT and its potential driving role in COPD, idiopathic pulmonary fibrosis (IPF), bronchiolitis obliterans syndrome (BOS), and lung cancer, while noting that all cells need not display a full EMT in any of these contexts, i...
June 24, 2017: Developmental Dynamics: An Official Publication of the American Association of Anatomists
https://www.readbyqxmd.com/read/28646217/why-do-physicians-lack-engagement-with-smoking-cessation-treatment-in-their-copd-patients-a-multinational-qualitative-study
#5
Eva Anne Marije van Eerd, Mette Bech Risør, Mark Spigt, Maciek Godycki-Cwirko, Elena Andreeva, Nick Francis, Anja Wollny, Hasse Melbye, Onno van Schayck, Daniel Kotz
Smoking cessation is the only effective intervention to slow down the accelerated decline in lung function in smokers with chronic obstructive pulmonary disease. Nevertheless, physicians often do not routinely provide evidence-based smoking cessation treatment to their patients. To understand underlying reasons, we explored how physicians engage in smoking cessation treatment in their chronic obstructive pulmonary disease patients. In total, 21 focus group discussions were held with general practitioners and pulmonologists in seven different countries in Europe and Asia...
June 23, 2017: NPJ Primary Care Respiratory Medicine
https://www.readbyqxmd.com/read/28645458/pulmonary-3-he-magnetic-resonance-imaging-biomarkers-of-regional-airspace-enlargement-in-alpha-1-antitrypsin-deficiency
#6
Eric Lessard, Heather M Young, Anurag Bhalla, Damien Pike, Khadija Sheikh, David G McCormack, Alexei Ouriadov, Grace Parraga
RATIONALE AND OBJECTIVES: Thoracic x-ray computed tomography (CT) and hyperpolarized (3)He magnetic resonance imaging (MRI) provide quantitative measurements of airspace enlargement in patients with emphysema. For patients with panlobular emphysema due to alpha-1 antitrypsin deficiency (AATD), sensitive biomarkers of disease progression and response to therapy have been difficult to develop and exploit, especially those biomarkers that correlate with outcomes like quality of life. Here, our objective was to generate and compare CT and diffusion-weighted inhaled-gas MRI measurements of emphysema including apparent diffusion coefficient (ADC) and MRI-derived mean linear intercept (Lm) in patients with AATD, chronic obstructive pulmonary disease (COPD) ex-smokers, and elderly never-smokers...
June 20, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28645284/healthcare-expenditure-on-indigenous-and-non-indigenous-australians-at-high-risk-of-cardiovascular-disease
#7
Blake Angell, Tracey-Lea Laba, Tom Lung, Alex Brown, Sandra Eades, Tim Usherwood, David Peiris, Laurent Billot, Graham Hillis, Ruth Webster, Andrew Tonkin, Christopher Reid, Barbara Molanus, Natasha Rafter, Alan Cass, Anushka Patel, Stephen Jan
BACKGROUND: In spite of bearing a heavier burden of death, disease and disability, there is mixed evidence as to whether Indigenous Australians utilise more or less healthcare services than other Australians given their elevated risk level. This study analyses the Medicare expenditure and its predictors in a cohort of Indigenous and non-Indigenous Australians at high risk of cardiovascular disease. METHODS: The healthcare expenditure of participants of the Kanyini Guidelines Adherence with the Polypill (GAP) pragmatic randomised controlled trial was modelled using linear regression methods...
June 23, 2017: International Journal for Equity in Health
https://www.readbyqxmd.com/read/28645052/cardiorespiratory-responses-of-air-filtration-a-randomized-crossover-intervention-trial-in-seniors-living-in-beijing-beijing-indoor-air-purifier-study-biapsy
#8
Danqing Shao, Yipeng Du, Shuo Liu, Bert Brunekreef, Kees Meliefste, Qian Zhao, Jie Chen, Xiaoming Song, Meng Wang, Juan Wang, Hongbing Xu, Rongshan Wu, Tong Wang, Baihuan Feng, Candice Shih-Chun Lung, Xian Wang, Bei He, Wei Huang
In this Beijing Indoor Air Purifier StudY (BIAPSY), we conducted a randomized crossover intervention trial in a panel of 35 non-smoking senior participants with free-living, with and without chronic obstructive pulmonary disease (COPD). Portable air filtration units were randomly allocated to active-(filter in) for 2weeks and sham-mode (filter out) for 2weeks in the households. We examined the differences in indoor air pollutant concentrations in 20 study homes and a suite of cardio-respiratory biomarker levels in study participants between filtration modes, with and without adjustment for potential confounders...
June 20, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28644724/modeling-long-term-effects-attributed-to-nitrogen-dioxide-no2-and-sulfur-dioxide-so2-exposure-on-asthma-morbidity-in-a-nationwide-cohort-in-israel
#9
N Greenberg, R S Carel, E Derazne, A Tiktinsky, D Tzur, B A Portnov
Studies have provided extensive documentation that acutely elevated environmental exposures contribute to chronic health problems. However, only attention has been paid to the effects of modificate of exposure assessment methods in environmental health investigations, leading to uncertainty and gaps in our understanding of exposure- and dose-response relationships. The goal of the present study was to evaluate whether average or peak concentration exerts a greater influence on asthma outcome, and which of the exposure models may better explain various physiological responses generated by nitrogen dioxide (NO2) or sulfur dioxide (SO2) air pollutants...
June 23, 2017: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/28642672/multifocal-osteonecrosis-secondary-to-occupational-exposure-to-aluminum
#10
Jorge Henrique Assunção, Eduardo Angeli Malavolta, Mauro Emilio Conforto Gracitelli, Renée Zon Filippi, Arnaldo Amado Ferreira
Multifocal osteonecrosis is a rare disease; chronic use of corticosteroids is considered the main risk factor. Patients with chronic renal failure can develop aluminum toxicity, which can lead to osteomalacia and encephalopathy. An association between osteonecrosis and aluminum toxicity has been reported among patients with dialytic renal insufficiency. Occupational exposure to aluminum rarely causes lung disease and no cases of bone lesions resulting from exposure to this metal have been reported. In this manuscript, we describe a novel case of a patient with multifocal osteonecrosis associated with chronic occupational exposure to aluminum...
May 2017: Acta Ortopedica Brasileira
https://www.readbyqxmd.com/read/28642310/metabolomics-analysis-identifies-sex-associated-metabotypes-of-oxidative-stress-and-the-autotaxin-lysopa-axis-in%C3%A2-copd
#11
Shama Naz, Johan Kolmert, Mingxing Yang, Stacey N Reinke, Muhammad Anas Kamleh, Stuart Snowden, Tina Heyder, Bettina Levänen, David J Erle, C Magnus Sköld, Åsa M Wheelock, Craig E Wheelock
Chronic obstructive pulmonary disease (COPD) is a heterogeneous disease and a leading cause of mortality and morbidity worldwide. The aim of this study was to investigate the sex dependency of circulating metabolic profiles in COPD.Serum from healthy never-smokers (healthy), smokers with normal lung function (smokers), and smokers with COPD (COPD; Global Initiative for Chronic Obstructive Lung Disease stages I-II/A-B) from the Karolinska COSMIC cohort (n=116) was analysed using our nontargeted liquid chromatography-high resolution mass spectrometry metabolomics platform...
June 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28642306/-global-strategy-for-the-diagnosis-management-and-prevention-of-chronic-obstructive-lung-disease-2017-report-gold-executive-summary-claus-f-vogelmeier-gerard-j-criner-fernando-j-martinez-antonio-anzueto-peter-j-barnes-jean-bourbeau-bartolome-r-celli-rongchang
#12
https://www.readbyqxmd.com/read/28642260/cigarette-smoke-disrupts-monolayer-integrity-by-altering-epithelial-cell-cell-adhesion-and-cortical-tension
#13
Kristine Nishida, Kieran A Brune, Nirupama Putcha, Pooja Mandke, Wanda K O'Neal, Danny Shade, Vasudha Srivastava, Menghen Wang, Hong Lam, Steven S An, M Bradley Drummond, Nadia N Hansel, Douglas N Robinson, Venkataramana K Sidhaye
Chronic obstructive pulmonary disease (COPD) is a major cause of morbidity and mortality. Cigarette smoke (CS) drives disease development and progression. The epithelial barrier is damaged by CS with increased monolayer permeability. However, the molecular changes that cause this barrier disruption and the interaction between adhesion proteins and the cytoskeleton are not well defined. We hypothesized that CS alters monolayer integrity by increasing cell contractility and decreasing cell adhesion in epithelia...
June 22, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28642129/fucoxanthin-inhibits-profibrotic-protein-expression-in-vitro-and-attenuates-bleomycin-induced-lung-fibrosis-in-vivo
#14
Sun Young Ma, Won Sun Park, Dae-Sung Lee, Grace Choi, Mi-Jin Yim, Jeong Min Lee, Won-Kyo Jung, Sae Gwang Park, Su-Kil Seo, Sung Jae Park, Il Yong Han, Yung Hyun Choi, Il-Whan Choi
Pulmonary fibrosis, a potentially fatal disease, results from acute and chronic interstitial lung diseases. Fucoxanthin (Fx), a carotenoid found in brown seaweed, shows a wide range of pharmacological activities. In this study, we investigated the antifibrotic effects of fucoxanthin and their underlying molecular mechanisms in transforming growth factor-beta1 (TGF-β1)-stimulated human pulmonary fibroblasts (HPFs). Thus, the effects of Fx on TGF-β1-induced expression of fibrotic factors, such as alpha-smooth muscle actin (α-SMA), type 1 collagen, fibronectin, and interleukin-6 (IL-6), in HPFs were investigated...
June 19, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28642115/anti-tnf%C3%AE-therapy-in-inflammatory-lung-diseases-bn
#15
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/28642042/changes-in-biophysical-membrane-properties-induced-by-the-budesonide-hydroxy-%C3%AE-cyclodextrin-complex
#16
Andreia G Dos Santos, Jules Bayiha, Gilles Dufour, Didier Cataldo, Brigitte Evrard, Liana C Silva, Magali Deleu, Marie-Paule Mingeot-Leclercq
Budesonide (BUD), a poorly soluble anti-inflammatory drug, is used to treat patients suffering from asthma and COPD (Chronic Obstructive Pulmonary Disease). Hydroxypropyl-β-cyclodextrin (HPβCD), a biocompatible cyclodextrin known to interact with cholesterol, is used as a drug-solubilizing agent in pharmaceutical formulations. Budesonide administered as an inclusion complex within HPβCD (BUD:HPβCD) required a quarter of the nominal dose of the suspension formulation and significantly reduced neutrophil induced inflammation in a COPD mouse model exceeding the effect of each molecule administered individually...
June 19, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28641831/two-components-of-the-new-espen-diagnostic-criteria-for-malnutrition-are-independent-predictors-of-lung-function-in-hospitalized-patients-with-chronic-obstructive-pulmonary-disease-copd
#17
Arora Ros Ingadottir, Anne Marie Beck, Christine Baldwin, C Elizabeth Weekes, Olof Gudny Geirsdottir, Alfons Ramel, Thorarinn Gislason, Ingibjorg Gunnarsdottir
INTRODUCTION: Low fat free mass index (FFMI) is a component of the ESPEN diagnosis criteria of malnutrition, that only when accompanied with weight loss is considered to be a determinant of malnutrition. Our aims were to assess the prevalence of malnutrition in patients with chronic obstructive pulmonary disease (COPD) applying the ESPEN criteria, and to examine the ability of different components of the criteria to predict COPD severity, length of stay (LOS), hospital readmissions within 30 days and mortality...
June 8, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28640884/human-lagochilascariasis-a-rare-helminthic-disease
#18
REVIEW
Dulcinea Maria Barbosa Campos, Alverne Passos Barbosa, Jayrson Araújo de Oliveira, Giovana Galvão Tavares, Pedro Vitor Lemos Cravo, Alejandro Luquetti Ostermayer
Lagochilascariasis is a parasitic disease caused by a helminth of the order Ascaroidea, genus Lagochilascaris that comprises 6 species, among which only Lagochilascaris minor Leiper, 1909, is implicated in the human form of the disease. It is remarkable that the majority of cases of human lagochilascariasis in the Americas have been reported in Brazil. The natural definitive hosts of this parasite seem to be wild felines and canines. Lagochilascariasis is mostly a chronic human disease that can persist for several years, in which the parasite burrows into the subcutaneous tissues of the neck, paranasal sinuses, and mastoid...
June 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28640714/an-unexplored-brain-gut-microbiota-axis-in-stroke
#19
Shu Wen Wen, Connie H Y Wong
Microbiota research, in particular that of the gut, has recently gained much attention in medical research owing to technological advances in metagenomics and metabolomics. Despite this, much of the research direction has focused on long-term or chronic effects of microbiota manipulation on health and disease. In this addendum, we reflect on our recent publication that reported findings addressing a rather unconventional hypothesis. Bacterial pneumonia is highly prevalent and is one of the leading contributors to stroke morbidity and mortality worldwide...
June 22, 2017: Gut Microbes
https://www.readbyqxmd.com/read/28640141/smoking-status-and-gene-susceptibility-play-important-roles-in-the-development-of-chronic-obstructive-pulmonary-disease-and-lung-function-decline-a-population-based-prospective-study
#20
Junling Zhao, Miao Li, Jinkun Chen, Xiaomei Wu, Qin Ning, Jianping Zhao, Yongjian Xu, Jungang Xie, Jun Yu
BACKGROUND: We conducted this study to identify the influences and synergistic effects of smoking status and polymorphisms in hedgehog interacting protein (HHIP) on chronic obstructive pulmonary disease (COPD) and lung function decline. METHODS: A cohort containing 306 COPD patients and 743 healthy subjects was recruited from 25,000 subjects. All selected subjects had chronic cough for over 2 years or a smoking history above 20 pack-years. After 8 years, all subjects were divided into 2 cohorts according to whether they had quit smoking or not...
June 2017: Medicine (Baltimore)
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