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https://www.readbyqxmd.com/read/29351446/mechanisms-and-consequences-of-oxidative-stress-in-lung-disease-therapeutic-implications-for-an-aging-populace
#1
Louise Hecker
The rapid expansion of the elderly population has led to the recent epidemic of age-related diseases, including increased incidence and mortality of chronic and acute lung diseases. Numerous studies have implicated aging and oxidative stress in the pathogenesis of various pulmonary diseases; however, despite recent advances in these fields, the specific contributions of aging and oxidative stress remain elusive. This review will discuss the consequences of aging on lung morphology and physiology, and how redox imbalance with aging contributes to lung disease susceptibility...
December 14, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29351440/jq1-is-a-potential-therapeutic-option-for-copd-patients-with-agrin-overexpression
#2
Zhen Xiao, Jing Shu, Feng Zhou, Yong Han
Chronic Obstructive Pulmonary Disease (COPD) is one of the leading cause of morbidity and death worldwide. It is characterized by chronic pulmonary inflammation and obstructed airflow from the lungs. To date, there is no effective treatments for COPD. The activation of Agrin (AGRN) - YAP pathway can promote heart regeneration. Since Agrin can only induce mild cardiomyocyte (CM) proliferation compare to ERBB2 pathway activation, it might exert pleiotropic effects, such as mitigation of innate inflammation, immune response and fibrosis...
December 28, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29351437/metabolic-reprogramming-in-the-pathogenesis-of-chronic-lung-diseases-including-bpd-copd-and-pulmonary-fibrosis
#3
Haifeng Zhao, Phyllis A Dennery, Hongwei Yao
The metabolism of nutrient substrates including glucose, glutamine and fatty acids provides acetyl-CoA for the tricarboxylic acid cycle to generate energy, and metabolites for the biosynthesis of biomolecules including nucleotides, proteins, and lipids. It has been shown that metabolism of glucose, fatty acid, and glutamine plays important roles in modulating cellular proliferation, differentiation, apoptosis, autophagy, senescence, and inflammatory responses. All these cellular processes contribute to the pathogenesis of chronic lung diseases, including bronchopulmonary dysplasia, chronic obstructive pulmonary disease, and pulmonary fibrosis...
January 4, 2018: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29350914/cys34-adductomes-differ-between-patients-with-chronic-lung-or-heart-disease-and-healthy-controls-in-central-london
#4
Sa Liu, Hasmik Grigoryan, William Matthew Bell Edmands, Sonia Dagnino, Rudy Sinharay, Paul Cullinan, Peter Collins, Kian Fan Chung, Benjamin M Barratt, Frank J Kelly, Paolo Vineis, Stephen M Rappaport
Oxidative stress generates reactive species that modify proteins, deplete antioxidant defenses and contribute to chronic obstructive pulmonary disease (COPD) and ischemic heart disease (IHD). To determine whether protein modifications differ between COPD or IHD patients and healthy subjects, we performed untargeted analysis of adducts at the Cys34 locus of human serum albumin (HSA). Biospecimens were obtained from nonsmoking participants from London, U.K., including healthy subjects (n=20) and patients with COPD (n=20) or IHD (n=10)...
January 19, 2018: Environmental Science & Technology
https://www.readbyqxmd.com/read/29349250/best-worst-scaling-survey-of-preferences-regarding-the-adverse-effects-of-tobacco-use-in-china
#5
Takeshi Mori, Takahiro Tsuge
We use best-worst scaling to assess two types of concern levels of the adverse consequences of smoking in China. While the smoking cessation policy has worked well in Taiwan, more than 1 million people in mainland China are estimated to die every year from tobacco use. This study compares the preferences of Chinese individuals in the two jurisdictions (mainland versus Taiwan) and explores the possibility of information-based interventions. The relative importance of 13 adverse effects was assessed by conducting a web-based survey on a sample of 480 Chinese participants...
December 2017: SSM—Population Health
https://www.readbyqxmd.com/read/29347936/comparative-analysis-of-copd-associated-with-tobacco-smoking-biomass-smoke-exposure-or-both
#6
Jordi Olloquequi, Sergio Jaime, Viviana Parra, Elizabeth Cornejo-Córdova, Gonzalo Valdivia, Àlvar Agustí, Rafael Silva O
BACKGROUND: Exposure to noxious gases and particles contained in both tobacco smoking (TS) and biomass smoke (BS) are well recognized environmental risk factors for chronic obstructive pulmonary disease (COPD). COPD is characterized by an abnormal inflammatory response, both in the pulmonary and systemic compartments. The differential effects of TS, BS or their combined exposure have not been well characterized yet. This study sought to compare the lung function characteristics and systemic inflammatory response in COPD patients exposed to TS, BS or their combination...
January 18, 2018: Respiratory Research
https://www.readbyqxmd.com/read/29345249/effects-of-1-25-dihydroxyvitamin-d3-on-the-prevention-of-chronic-obstructive-pulmonary-disease-copd-in-rats-exposed-to-air-pollutant-particles-less-than-2-5-micrometers-in-diameter-pm2-5
#7
Lerong Chen, Xiaolan Yuan, Luru Zou, Jianping Peng, Xinchun Hu
BACKGROUND This study aimed to investigate the effects of 1,25-dihydroxyvitamin D3 (1,25(OH)2D3) on airway changes in chronic obstructive pulmonary disease (COPD) rats exposed to air pollutant particles less than 2.5 micrometers in diameter (PM2.5), and to evaluate the mechanisms. MATERIAL AND METHODS Three groups were included in this study: a normal group, a COPD model group, and a COPD with 1,25(OH)2D3 treatment group. In each group, the rats were divided into four subgroups: control and different doses of PM2...
January 18, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29343951/risk-factors-predict-frequent-hospitalization-in-patients-with-acute-exacerbation-of-copd
#8
Xia Wei, Zhengquan Ma, Nan Yu, Jingting Ren, Chenwang Jin, Jiuyun Mi, Meijuan Shi, Libin Tian, Yanzhong Gao, Youmin Guo
Purpose: COPD is a heterogeneous disease, and the available prognostic indexes are therefore limited. This study aimed to identify the factors associated with acute exacerbation leading to hospitalization. Patients and methods: This was a retrospective study of consecutive patients with COPD (meeting the Global Initiative for Chronic Obstructive Lung Disease [GOLD] diagnostic criteria) hospitalized at the Ninth Hospital of Xi'an Affiliated Hospital of Xi'an Jiaotong University between October 2014 and September 2016...
2018: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29341360/comparison-of-respiratory-system-impedance-in-asthma-and-copd-a-prospective-observational-study
#9
Takahiro Kamada, Masahiro Kaneko, Hiromi Tomioka
BACKGROUND AND OBJECTIVE: A single assessment of within-breath variations of respiratory system reactance (Xrs) at 5 Hz (ΔX5) measured by the forced oscillation technique (FOT) has been reported to be useful for the detection of pathophysiological changes in chronic obstructive pulmonary disease (COPD) and asthma. We examined longitudinal changes in respiratory system resistance (Rrs) and Xrs during tidal breathing between stable asthma and COPD patients in order to clarify the features of changes of respiratory system impedance and airflow limitation for these conditions...
January 17, 2018: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/29339516/human-airway-branch-variation-and-chronic-obstructive-pulmonary-disease
#10
Benjamin M Smith, Hussein Traboulsi, John H M Austin, Ani Manichaikul, Eric A Hoffman, Eugene R Bleecker, Wellington V Cardoso, Christopher Cooper, David J Couper, Stephen M Dashnaw, Jia Guo, MeiLan K Han, Nadia N Hansel, Emlyn W Hughes, David R Jacobs, Richard E Kanner, Joel D Kaufman, Eric Kleerup, Ching-Long Lin, Kiang Liu, Christian M Lo Cascio, Fernando J Martinez, Jennifer N Nguyen, Martin R Prince, Stephen Rennard, Stephen S Rich, Leora Simon, Yanping Sun, Karol E Watson, Prescott G Woodruff, Carolyn J Baglole, R Graham Barr
Susceptibility to chronic obstructive pulmonary disease (COPD) beyond cigarette smoking is incompletely understood, although several genetic variants associated with COPD are known to regulate airway branch development. We demonstrate that in vivo central airway branch variants are present in 26.5% of the general population, are unchanged over 10 y, and exhibit strong familial aggregation. The most common airway branch variant is associated with COPD in two cohorts (n = 5,054), with greater central airway bifurcation density, and with emphysema throughout the lung...
January 16, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29339421/hif1a-rs10873142-polymorphism-is-associated-with-risk-of-chronic-obstructive-pulmonary-disease-in-a-chinese-han-population-a-case-control-study
#11
Licheng Wang, Yaliang Tang, Ye Chen
Chronic obstructive pulmonary disease (COPD) is a type of obstructive lung disease characterized by long-term poor airflow. Recently, variants in the hypoxia-inducible factor 1α ( HIF1A ) gene were found to be associated with COPD risk. This study aimed to identify whether rs10873142 polymorphism (an intronic polymorphism) in HIF1A gene was related to COPD in a Chinese population. We genotyped HIF1A gene rs10873142 polymorphism in a case-control study with 235 COPD cases and 548 controls in a Chinese Han population...
January 16, 2018: Bioscience Reports
https://www.readbyqxmd.com/read/29338792/critical-inhaler-errors-in-asthma-and-copd-a-systematic-review-of-impact-on-health-outcomes
#12
REVIEW
Omar Sharif Usmani, Federico Lavorini, Jonathan Marshall, William Christopher Nigel Dunlop, Louise Heron, Emily Farrington, Richard Dekhuijzen
BACKGROUND: Inhaled drug delivery is the cornerstone treatment for asthma and chronic obstructive pulmonary disease (COPD). However, use of inhaler devices can be challenging, potentially leading to critical errors in handling that can significantly reduce drug delivery to the lungs and effectiveness of treatment. METHODS: A systematic review was conducted to define 'critical' errors and their impact on health outcomes and resource use between 2004 and 2016, using key search terms for inhaler errors in asthma and COPD (Search-1) and associated health-economic and patient burden (Search-2)...
January 16, 2018: Respiratory Research
https://www.readbyqxmd.com/read/29337679/the-effects-of-physical-activity-on-chronic-subclinical-systemic-inflammation
#13
Alba Maria Dalbello Tir, Marina Labor, Davor Plavec
Chronic subclinical systemic inflammation (CSSI) is a pathogenic event and a common risk factor for many noncommunicable diseases like atherosclerosis, metabolic syndrome, cardiovascular disease, insulin resistance and type 2 diabetes, cancer, and obstructive lung disease. On the other hand, regular physical activity has been found to reduce this risk. Many studies of different design were conducted to assess the association between inflammatory mediators as markers of CSSI and regular physical activity. The aim of this review was to present the current level of evidence and understanding of potential mechanisms by which physical activity reduces inflammatory mediators involved in CSSI and the types of physical activity required for the expected effect...
December 20, 2017: Arhiv za Higijenu Rada i Toksikologiju
https://www.readbyqxmd.com/read/29336961/chronic-lung-disease-and-mortality-after-cardiac-surgery-a-prospective-cohort-study
#14
Dmitry Ponomarev, Oksana Kamenskaya, Asya Klinkova, Irina Loginova, Pavel Vedernikov, Igor Kornilov, Vladimir Shmyrev, Vladimir Lomivorotov, Aleksander Chernavskiy, Aleksander Karaskov
OBJECTIVE: To investigate the 1-year survival in cardiac surgical patients with lung disease, including previously undiagnosed cases. DESIGN: Prospective cohort study. SETTING: Tertiary hospital. PARTICIPANTS: Patients scheduled for elective coronary artery bypass graft (CABG) surgery. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Pulmonary function tests (PFTs) were performed in 454 patients before surgery...
December 11, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29335020/ensemble-genomic-analysis-in-human-lung-tissue-identifies-novel-genes-for-chronic-obstructive-pulmonary-disease
#15
Jarrett D Morrow, Michael H Cho, John Platig, Xiaobo Zhou, Dawn L DeMeo, Weiliang Qiu, Bartholome Celli, Nathaniel Marchetti, Gerard J Criner, Raphael Bueno, George R Washko, Kimberly Glass, John Quackenbush, Edwin K Silverman, Craig P Hersh
BACKGROUND: Genome-wide association studies (GWAS) have identified single nucleotide polymorphisms (SNPs) significantly associated with chronic obstructive pulmonary disease (COPD). However, many genetic variants show suggestive evidence for association but do not meet the strict threshold for genome-wide significance. Integrative analysis of multiple omics datasets has the potential to identify novel genes involved in disease pathogenesis by leveraging these variants in a functional, regulatory context...
January 15, 2018: Human Genomics
https://www.readbyqxmd.com/read/29334783/frailty-a-global-measure-of-the-multisystem-impact-of-copd
#16
Nichola S Gale, Ali M Albarrati, Margaret M Munnery, Ruth E Hubbard, Ruth Tal-Singer, John R Cockcroft, Dennis J Shale
Chronic obstructive pulmonary disease (COPD) is a multisystem disease that resembles the accumulation of multiple impairments seen in aging. A comprehensive geriatric assessment (CGA) captures multisystem deficits, from which a frailty index (FI) can be derived. We hypothesized that patients with COPD would be frailer than a comparator group free from respiratory disease. In this cross-sectional analysis, the CGA questionnaire was completed and used to derive an FI in 520 patients diagnosed with COPD and 150 comparators...
January 1, 2018: Chronic Respiratory Disease
https://www.readbyqxmd.com/read/29334676/statins-in-the-treatment-of-copd-and-asthma-where-do-we-stand
#17
REVIEW
Jennifer Y So, Santosh Dhungana, Joanna J Beros, Gerard J Criner
Asthma and chronic obstructive pulmonary disease (COPD) are the two most prevalent obstructive lung diseases that account for tremendous morbidity and mortality throughout the world. These diseases have strong inflammatory components, with multiple prior studies showing elevated levels of various inflammatory markers and cells in those with COPD and asthma. Therefore, efforts to target inflammation in management of these diseases are of great interest. Statins, which define a class of drugs that are HMG-CoA inhibitors, are used to decrease cholesterol levels and have also been described to have many pleotropic effects that include anti-inflammatory and anti-oxidative properties...
January 12, 2018: Current Opinion in Pharmacology
https://www.readbyqxmd.com/read/29332673/prevalence-and-comorbidity-of-sleep-conditions-in-australian-adults-2016-sleep-health-foundation-national-survey
#18
Sarah L Appleton, Tiffany K Gill, Carol J Lang, Anne W Taylor, R Douglas McEvoy, Nigel P Stocks, David A González-Chica, Robert J Adams
OBJECTIVE: To determine the prevalence of sleep conditions (obstructive sleep apnea [OSA], insomnia symptoms, simple snoring, and restless legs) and their associated burden of chronic conditions in a community sample. DESIGN: Cross-sectional national adult online survey. SETTING: Community-based sample. PARTICIPANTS: Australian adults ≥18 years, N = 1011. MEASUREMENTS: A cross-sectional national online survey assessed diagnosed OSA, OSA symptoms, insomnia symptoms, sleep problems, excessive daytime sleepiness (Epworth Sleepiness Scale ≥11), and physician-diagnosed health conditions (heart disease, diabetes, hypertension, reflux disease, lung disease, depression, anxiety/panic disorder, arthritis)...
February 2018: Sleep Health
https://www.readbyqxmd.com/read/29332320/the-role-of-tiotropium-olodaterol-dual-bronchodilator-therapy-in-the-management-of-chronic-obstructive-pulmonary-disease
#19
REVIEW
David M G Halpin
Bronchodilator therapy is central to the management of chronic obstructive pulmonary disease and are recommended as the preferred treatment by the Global Obstructive Lung Disease Initiative (GOLD). Long acting anti-muscarinics (LAMA) and long acting β₂ agonists (LABA) are both more effective than regular short-acting drugs but many patients remain symptomatic despite monotherapy with these drugs. Combination therapy with LAMA and LABA increases the therapeutic benefit while minimizing dose-dependent side effects of long-acting bronchodilator therapy...
January 2018: Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/29331311/prediction-of-mortality-in-patients-with-chronic-obstructive-pulmonary-disease-with-the-new-global-initiative-for-chronic-obstructive-lung-disease-2017-classification-a-cohort-study
#20
Anne Gedebjerg, Szimonetta Komjáthiné Szépligeti, Laura-Maria Holm Wackerhausen, Erzsébet Horváth-Puhó, Ronald Dahl, Jens Georg Hansen, Henrik Toft Sørensen, Mette Nørgaard, Peter Lange, Reimar Wernich Thomsen
BACKGROUND: The Global Initiative for Chronic Obstructive Lung Disease (GOLD) 2017 classification separates the spirometric 1-4 staging from the ABCD groups defined by symptoms and exacerbations. Little is known about how this new classification predicts mortality in patients with chronic obstructive pulmonary disease (COPD). We aimed to establish the predictive ability of the GOLD 2017 classification, compared with earlier classifications, for all-cause and respiratory mortality, both when using its main ABCD groups and when further subdividing according to spirometric 1-4 staging...
January 10, 2018: Lancet Respiratory Medicine
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