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https://www.readbyqxmd.com/read/28431317/ambient-pm2-5-exposure-and-premature-mortality-burden-in-the-holy-city-varanasi-india
#1
Vaishali Jain, Sagnik Dey, Sourangsu Chowdhury
More than 3 million population residing in the holy city Varanasi and sub-urban areas is exposed to very high level of fine particulate matter (PM2.5) from various sources. Continuous monitoring by Central Pollution Control Board started only in 2015; therefore what was the pollution level in the past and how it has changed over the years are not known. We use MODIS aerosol products to infer PM2.5 and examine 15-year climatology. Data shows a rapid (1.5-3% per year) increase in PM2.5 in the last 15 years and high (87% days in a year) persistence of PM2...
April 18, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28429628/relationship-of-steroid-dosing-and-duration-of-mechanical-ventilation-in-adult-patients-with-acute-exacerbations-of-chronic-obstructive-pulmonary-disease
#2
Jennifer McCann, Katherine Teare, Emily Cochard, Brent Toney
BACKGROUND: The optimal steroid dose for patients who require mechanical ventilation (MV) for acute exacerbation of chronic obstructive pulmonary disease (AECOPD) is unknown. OBJECTIVE: The primary objective of the study is to describe the relationship between steroid doses prescribed and duration of MV. METHODS: This was a retrospective study of patients admitted between October 2013 and September 2014 who were prescribed steroids and received MV for ≥48 hours for AECOPD...
January 1, 2017: Journal of Pharmacy Practice
https://www.readbyqxmd.com/read/28427967/mechanisms-underlying-hiv-associated-non-infectious-lung-disease
#3
REVIEW
Rachel M Presti, Sonia C Flores, Brent E Palmer, Jeffrey J Atkinson, Catherine R Lesko, Bryan Lau, Andrew P Fontenot, Jesse Roman, John F McDyer, Homer L Twigg
Pulmonary disease remains a primary source of morbidity and mortality in persons living with HIV (PLWH), although the advent of potent combination antiretroviral therapy (cART) has resulted in a shift from predominantly infectious to noninfectious pulmonary complications. PLWH are at high risk for chronic obstructive pulmonary disease, pulmonary hypertension, and lung cancer even in the era of cART. The underlying mechanisms of this are incompletely understood, but recent research in both human and animal models suggest that oxidative stress, expression of matrix metalloproteinases, and genetic instability may result in lung damage which predisposes PLWH to these conditions...
April 17, 2017: Chest
https://www.readbyqxmd.com/read/28420398/mechanisms-of-corticosteroid-insensitivity-in-copd-alveolar-macrophages-exposed-to-nthi
#4
Rana M Khalaf, Simon R Lea, Hannah J Metcalfe, Dave Singh
BACKGROUND: Non-typeable Haemophilus influenza (NTHi) infection is common in COPD. Corticosteroids can have limited therapeutic effects in COPD patients. NTHi causes corticosteroid insensitive cytokine production from COPD alveolar macrophages. We investigated the mechanisms by which NTHi causes corticosteroid insensitive inflammatory responses, and the effects of NTHi exposure on COPD macrophage polarisation. METHOD: Alveolar macrophages from COPD patients and controls were exposed to NTHi in conjunction with the corticosteroid dexamethasone and/or the p38 MAPK inhibitor BIRB-796...
April 18, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28420371/effect-of-pulmonary-arteriovenous-malformations-on-the-mechanical-properties-of-the-lungs
#5
Cécile Rotenberg, Marcel Bonay, Mostafa El Hajjam, Sandra Blivet, Alain Beauchet, Pascal Lacombe, Thierry Chinet
BACKGROUND: Pulmonary arteriovenous malformations (PAVMs) are present in approximately 15-50% individuals with hereditary hemorrhagic telangiectasia (HHT). They may be isolated but more often are multiple. The goal of this study was to evaluate the influence of PAVMs on lung mechanical properties. METHODS: We reviewed the files of all adult patients (age ≥ 18 years) referred to our Center for evaluation of HHT between 2005 and 2013. The diagnosis of HHT was based on the Curacao criteria and/or the presence of a pathogenic mutation...
April 19, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28416195/pitavastatin-versus-pravastatin-in-adults-with-hiv-1-infection-and-dyslipidaemia-intrepid-12-week-and-52-week-results-of-a-phase-4-multicentre-randomised-double-blind-superiority-trial
#6
Judith A Aberg, Craig A Sponseller, Douglas J Ward, Vladimir A Kryzhanovski, Stuart E Campbell, Melanie A Thompson
BACKGROUND: People living with HIV-1 infection are at greater risk for cardiovascular disease than seronegative adults. Treatment of dyslipidaemia with statins has been challenging in people with HIV because of an increased potential for drug interactions due to competing cytochrome P450 metabolism between statins and commonly used antiretroviral agents. Neither pitavastatin nor pravastatin depend on cytochrome P450 for primary metabolism. We aimed to assess the safety and efficacy of pitavastatin versus pravastatin in adults with HIV and dyslipidaemia...
April 13, 2017: Lancet HIV
https://www.readbyqxmd.com/read/28414687/disseminated-cryptococcal-disease-with-diffuse-pulmonary-infiltrates-in-a-non-hiv-host
#7
M Hughes, K Trivedi, M Rudrappa
INTRODUCTION: We present a case of disseminated Cryptococcus in a non-HIV host, where the primary manifestation was pulmonary with diffuse pulmonary infiltrates. This patient was on high dose corticosteroids for autoimmune hemolytic anemia. CASE: A 79 year old Caucasian man with a history of autoimmune hemolytic anemia on 100 mg of prednisone daily, coronary artery disease s/p bypass surgery, ischemic cardiomyopathy, chronic obstructive pulmonary disease, sleep apnea, chronic kidney disease, and history of bilateral pulmonary emboli presented to Hematology/Oncology clinic with symptoms of productive cough, worsening shortness of breath, hemoptysis...
March 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28410917/the-relative-contribution-of-provider-and-ed-level-factors-to-variation-among-the-top-15-reasons-for-ed-admission
#8
Imad Khojah, Suhui Li, Qian Luo, Griffin Davis, Jessica E Galarraga, Michael Granovsky, Ori Litvak, Samuel Davis, Robert Shesser, Jesse M Pines
STUDY OBJECTIVE: We examine adult emergency department (ED) admission rates for the top 15 most frequently admitted conditions, and assess the relative contribution in admission rate variation attributable to the provider and hospital. METHODS: This was a retrospective, cross-sectional study of ED encounters (≥18years) from 19 EDs and 603 providers (January 2012-December 2013), linked to the Area Health Resources File for county-level information on healthcare resources...
April 6, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28410560/role-of-long-acting-muscarinic-antagonist-long-acting-%C3%AE-2-agonist-therapy-in-chronic-obstructive-pulmonary-disease
#9
Sarah E Petite
OBJECTIVE: To compare the available literature regarding the use of long-acting muscarinic antagonist (LAMA)/long-acting β2 agonists (LABA) and inhaled corticosteroid (ICS)/LABA combination inhaler therapy in chronic obstructive pulmonary disease (COPD) maintenance therapy management. DATA SOURCES: A MEDLINE literature search from database inception to February 2017 was conducted using the search terms chronic obstructive pulmonary disease, adrenergic beta-agonist, muscarinic antagonist, and inhaled corticosteroid...
April 1, 2017: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/28408748/the-microbiome-of-the-lung-and-its-extracellular-vesicles-in-nonsmokers-healthy-smokers-and-copd-patients
#10
Hyun Jung Kim, You-Sun Kim, Kang-Hyun Kim, Jun-Pyo Choi, Yoon-Keun Kim, Sunmi Yun, Lokesh Sharma, Charles S Dela Cruz, Jae Seung Lee, Yeon-Mok Oh, Sang-Do Lee, Sei Won Lee
Chronic obstructive pulmonary disease (COPD) is a chronic inflammatory disease, and bacterial infection plays a role in its pathogenesis. Bacteria secrete nanometer-sized extracellular vesicles (EVs), which may induce more immune dysfunction and inflammation than the bacteria themselves. We hypothesized that the microbiome of lung EVs might have distinct characteristics depending on the presence of COPD and smoking status. We analyzed and compared the microbiomes of 13 nonsmokers with normal spirometry, 13 smokers with normal spirometry (healthy smokers) and 13 patients with COPD by using 16S ribosomal RNA gene sequencing of surgical lung tissue and lung EVs...
April 14, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28408086/estimates-and-25-year-trends-of-the-global-burden-of-disease-attributable-to-ambient-air-pollution-an-analysis-of-data-from-the-global-burden-of-diseases-study-2015
#11
Aaron J Cohen, Michael Brauer, Richard Burnett, H Ross Anderson, Joseph Frostad, Kara Estep, Kalpana Balakrishnan, Bert Brunekreef, Lalit Dandona, Rakhi Dandona, Valery Feigin, Greg Freedman, Bryan Hubbell, Amelia Jobling, Haidong Kan, Luke Knibbs, Yang Liu, Randall Martin, Lidia Morawska, C Arden Pope, Hwashin Shin, Kurt Straif, Gavin Shaddick, Matthew Thomas, Rita van Dingenen, Aaron van Donkelaar, Theo Vos, Christopher J L Murray, Mohammad H Forouzanfar
BACKGROUND: Exposure to ambient air pollution increases morbidity and mortality, and is a leading contributor to global disease burden. We explored spatial and temporal trends in mortality and burden of disease attributable to ambient air pollution from 1990 to 2015 at global, regional, and country levels. METHODS: We estimated global population-weighted mean concentrations of particle mass with aerodynamic diameter less than 2·5 μm (PM2·5) and ozone at an approximate 11 km × 11 km resolution with satellite-based estimates, chemical transport models, and ground-level measurements...
April 10, 2017: Lancet
https://www.readbyqxmd.com/read/28406709/long-term-outcomes-in-a-population-based-cohort-with-respiratory-nontuberculous-mycobacteria-isolation
#12
Emily Henkle, Shannon A Novosad, Sean Shafer, Katrina Hedberg, Sarah A R Siegel, Jennifer Ku, Cara Varley, D Rebecca Prevots, Theodore K Marras, Kevin L Winthrop
RATIONALE: The natural history of nontuberculous mycobacterial (NTM) respiratory infection within the general population is poorly understood. OBJECTIVES: To describe the long-term clinical, microbiologic, and radiographic outcomes of patients with respiratory NTM isolates. METHODS: We previously identified a population-based cohort of patients with respiratory NTM isolation during 2005-6, and categorized patients as cases or non-cases using the ATS/IDSA pulmonary NTM disease criteria at that time...
April 13, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28405612/microrna-125a-and-b-inhibit-a20-and-mavs-to-promote-inflammation-and-impair-antiviral-response-in-copd
#13
Alan C-Y Hsu, Kamal Dua, Malcolm R Starkey, Tatt-Jhong Haw, Prema M Nair, Kristy Nichol, Nathan Zammit, Shane T Grey, Katherine J Baines, Paul S Foster, Philip M Hansbro, Peter A Wark
Influenza A virus (IAV) infections lead to severe inflammation in the airways. Patients with chronic obstructive pulmonary disease (COPD) characteristically have exaggerated airway inflammation and are more susceptible to infections with severe symptoms and increased mortality. The mechanisms that control inflammation during IAV infection and the mechanisms of immune dysregulation in COPD are unclear. We found that IAV infections lead to increased inflammatory and antiviral responses in primary bronchial epithelial cells (pBECs) from healthy nonsmoking and smoking subjects...
April 6, 2017: JCI Insight
https://www.readbyqxmd.com/read/28403845/hemosiderin-in-sputum-macrophages-may-predict-infective-exacerbations-of-chronic-obstructive-pulmonary-disease-a-retrospective-observational-study
#14
Sindu Mohan, Terence Ho, Melanie Kjarsgaard, Katherine Radford, A S M Borhan, Lehana Thabane, Parameswaran Nair
BACKGROUND: Infective exacerbations of COPD are common and are accompanied by neutrophilic bronchitis in sputum. Increased respiratory iron content has been associated with respiratory tract infection, though it is unclear if this represents a predisposing factor for infection or the sequelae of inflammation. Iron overload, as assessed in the airways, may be an important biomarker for recurrent infective exacerbations of COPD. The purpose of our study was to determine if hemosiderin in sputum macrophages is related to infective exacerbations of COPD...
April 12, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28397057/clinical-application-analysis-of-andrographolide-total-ester-sulfonate-injection-a-traditional-chinese-medicine-licensed-in-china
#15
Ying Zhao, Pu Huang, Zhe Chen, Si-Wei Zheng, Jin-Yang Yu, Chen Shi
Andrographolide total ester sulfonate (ATES) injection is one of the products of traditional Chinese medicine (TCM) currently used against viral infection in China. ATES injection was approved for manufacturing and marketing in January 2002. It is indicated for acute respiratory infections, tonsillitis, chronic obstructive pulmonary disease, influenza, foot and mouth disease, bronchiolitis, herpangina, mumps, infectious mononucleosis and psychosis. However, its usage also carries risk. We investigated the use of ATES at the Wuhan Union Hospital from January 2014 to December 2014 and evaluated its real-world clinical application using the hospital centralized monitoring method...
April 2017: Journal of Huazhong University of Science and Technology. Medical Sciences
https://www.readbyqxmd.com/read/28395404/-prevalence-and-risk-factors-of-respiratory-viral-infection-in-acute-exacerbation-of-chronic-obstructive-pulmonary-disease
#16
X B Du, X Ma, Y Gao, L F Wen, J Li, Z Z Wang, S Liu
Objective: To study the prevalence of respiratory viral infection in chronic obstructive pulmonary disease(COPD) exacerbations and to find the factors associated with susceptibility to viral infections. Methods: Eighty patients with exacerbations of COPD and 50 stable COPD patients were recruited. Nasopharyngeal swabs were tested for a range of 18 different respiratory viruses using PCR. Results: Among the COPD exacerbations, viral infection was detected in 18 episodes (22.5%) . The most common virus was rhinovirus (33...
April 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28393532/sex-bias-in-diagnostic-delay-in-bronchiectasis-an-analysis-of-the-spanish-historical-registry-of-bronchiectasis
#17
Rosa Ma Girón, Javier de Gracia Roldán, Casilda Olveira, Montserrat Vendrell, Miguel Ángel Martínez-García, David de la Rosa, Luis Máiz, Julio Ancochea, Liliana Vázquez, Luis Borderías, Eva Polverino, Eva Martínez-Moragón, Olga Rajas, Joan B Soriano
Diagnostic delay is common in most respiratory diseases, particularly in bronchiectasis. However, sex bias in diagnostic delay has not been studied to date. OBJECTIVE: Assessment of diagnostic delay in bronchiectasis by sex. METHODS: The Spanish Historical Registry of Bronchiectasis recruited adults diagnosed with bronchiectasis from 2002 to 2011 in 36 centres in Spain. From a total of 2113 patients registered we studied 2099, of whom 1125 (53.6%) were women. RESULTS: No differences were found for sex or age (61...
January 1, 2017: Chronic Respiratory Disease
https://www.readbyqxmd.com/read/28390740/a-predictive-model-for-early-mortality-after-surgical-treatment-of-heart-valve-or-prosthesis-infective-endocarditis-the-endoscore
#18
Michele Di Mauro, Guglielmo Mario Actis Dato, Fabio Barili, Sandro Gelsomino, Pasquale Santè, Alessandro Della Corte, Antonio Carrozza, Ester Della Ratta, Diego Cugola, Lorenzo Galletti, Roger Devotini, Riccardo Casabona, Francesco Santini, Antonio Salsano, Roberto Scrofani, Carlo Antona, Luca Botta, Claudio Russo, Samuel Mancuso, Mauro Rinaldi, Carlo De Vincentiis, Andrea Biondi, Cesare Beghi, Giangiuseppe Cappabianca, Vincenzo Tarzia, Gino Gerosa, Michele De Bonis, Alberto Pozzoli, Francesco Nicolini, Filippo Benassi, Francesco Rosato, Elena Grasso, Ugolino Livi, Sponga Sandro, Davide Pacini, Roberto Di Bartolomeo, Andrea De Martino, Uberto Bortolotti, Francesco Onorati, Giuseppe Faggian, Roberto Lorusso, Enrico Vizzardi, Gabriele Di Giammarco, Daniele Marinelli, Emmanuel Villa, Giovanni Troise, Marco Picichè, Francesco Musumeci, Domenico Paparella, Vito Margari, Francesco Tritto, Girolamo Damiani, Giuseppe Scrascia, Salvatore Zaccaria, Attilio Renzulli, Giuseppe Serraino, Giovanni Mariscalco, Daniele Maselli, Massimiliano Foschi, Alessandro Parolari, Giannantonio Nappi
BACKGROUND: The aim of this large retrospective study was to provide a logistic risk model along an additive score to predict early mortality after surgical treatment of patients with heart valve or prosthesis infective endocarditis (IE). METHODS: From 2000 to 2015, 2715 patients with native valve endocarditis (NVE) or prosthesis valve endocarditis (PVE) were operated on in 26 Italian Cardiac Surgery Centers. The relationship between early mortality and covariates was evaluated with logistic mixed effect models...
April 4, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28389738/helicobacter-pylori-infection-increases-the-risk-of-adult-onset-asthma-a-nationwide-cohort-study
#19
Y-C Wang, T-Y Lin, S-T Shang, H-J Chen, C-H Kao, C-C Wu, T-Y Yang
Helicobacter pylori infection (HPI) appears to reduce risk of childhood-onset asthma, but the relationship between HPI and adult-onset asthma is inconclusive. This study explored the potential association between HPI and risk of adult-onset asthma. We conducted a national insurance retrospective cohort study using the longitudinal health insurance database (LHID 2000) in Taiwan. We enrolled the HPI group consisting of 1664 patients with HPI diagnosis between 2000 and 2007, and the non-HPI group consisting of 6,656 age- and sex-matched subjects without HPI...
April 8, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28388301/procalcitonin-biomarker-algorithm-reduces-antibiotic-prescriptions-duration-of-therapy-and-costs-in-chronic-obstructive-pulmonary-disease-a-comparison-in-the-netherlands-germany-and-the-united-kingdom
#20
Marloes E van der Maas, Gertjan Mantjes, Lotte M G Steuten
Antibiotics are often recommended as treatment for patients with chronic obstructive pulmonary disease (COPD) exacerbations. However, not all COPD exacerbations are caused by bacterial infections and there is consequently considerable misuse and overuse of antibiotics among patients with COPD. This poses a severe burden on healthcare resources such as increased risk of developing antibiotic resistance. The biomarker procalcitonin (PCT) displays specificity to distinguish bacterial inflammations from nonbacterial inflammations and may therefore help to rationalize antibiotic prescriptions...
April 2017: Omics: a Journal of Integrative Biology
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