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Respiratory Research

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https://www.readbyqxmd.com/read/28720132/efficacy-and-safety-of-direct-switch-to-indacaterol-glycopyrronium-in-patients-with-moderate-copd-the-crystal-open-label-randomised-trial
#1
Claus F Vogelmeier, Mina Gaga, Maryam Aalamian-Mattheis, Timm Greulich, Jose M Marin, Walter Castellani, Vincent Ninane, Stephen Lane, Xavier Nunez, Francesco Patalano, Andreas Clemens, Konstantinos Kostikas
BACKGROUND: Dual bronchodilation combining a long-acting β2-agonist (LABA) and a long-acting muscarinic antagonist (LAMA) is the preferred choice of treatment recommended by the Global Initiative for Chronic Obstructive Lung Disease (GOLD) 2017 guidelines for the management of patients with moderate-to-severe chronic obstructive pulmonary disease (COPD). The once-daily (q.d.) fixed-dose combination (FDC) of LABA, indacaterol 110 μg and LAMA, glycopyrronium 50 μg (IND/GLY 110/50 μg q...
July 18, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28720095/fibrocyte-measurement-in-peripheral-blood-correlates-with-number-of-cultured-mature-fibrocytes-in-vitro-and-is-a-potential-biomarker-for-interstitial-lung-disease-in-rheumatoid-arthritis
#2
Søren Andreas Just, Hanne Lindegaard, Eva Kildall Hejbøl, Jesper Rømhild Davidsen, Niels Bjerring, Søren Werner Karlskov Hansen, Henrik Daa Schrøder, Inger Marie Jensen Hansen, Torben Barington, Christian Nielsen
BACKGROUND: Interstitial lung disease (ILD) can be a severe extra-articular disease manifestation in Rheumatoid Arthritis (RA). A potential role of fibrocytes in RA associated ILD (RA-ILD) has not previously been described. We present a modified faster method for measuring circulating fibrocytes, without intracellular staining. The results are compared to the traditional culture method, where the number of monocytes that differentiate into mature fibrocytes in vitro are counted. The results are following compared to disease activity in patients with severe asthma, ILD, RA (without diagnosed ILD) and RA with verified ILD (RA-ILD)...
July 18, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28709421/health-related-quality-of-life-in-patients-with-idiopathic-pulmonary-fibrosis-in-clinical-practice-insights-ipf-registry
#3
Michael Kreuter, Jeff Swigris, David Pittrow, Silke Geier, Jens Klotsche, Antje Prasse, Hubert Wirtz, Dirk Koschel, Stefan Andreas, Martin Claussen, Christian Grohé, Henrike Wilkens, Lars Hagmeyer, Dirk Skowasch, Joachim F Meyer, Joachim Kirschner, Sven Gläser, Felix J F Herth, Tobias Welte, Claus Neurohr, Martin Schwaiblmair, Matthias Held, Thomas Bahmer, Marion Frankenberger, Jürgen Behr
BACKGROUND: The INSIGHTS-IPF registry provides one of the largest data sets of clinical data and self-reported patient related outcomes including health related quality of life (QoL) on patients with idiopathic pulmonary fibrosis (IPF). We aimed to describe associations of various QoL instruments between each other and with patient characteristics at baseline. METHODS: Six hundred twenty-three IPF patients with available QoL data (St George's Respiratory Questionnaire SGRQ, UCSD Shortness-of-Breath Questionnaire SoB, EuroQol visual analogue scale and index EQ-5D, Well-being Index WHO-5) were analysed...
July 14, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28701189/stromal-derived-factor-1-mediates-the-lung-regenerative-effects-of-mesenchymal-stem-cells-in-a-rodent-model-of-bronchopulmonary-dysplasia
#4
Joel Reiter, Shelley Drummond, Ibrahim Sammour, Jian Huang, Victoria Florea, Polliana Dornas, Joshua M Hare, Claudia O Rodrigues, Karen C Young
BACKGROUND: Mesenchymal stem cells (MSCs) attenuate lung injury in experimental models of bronchopulmonary dysplasia (BPD). Stromal derived factor-1 (SDF-1), a chemokine secreted by MSCs, modulates angiogenesis and stem cell recruitment. Here we tested the hypothesis that SDF-1 mediates MSC protective effects in experimental BPD by modulating angiogenesis. METHODS: SDF-1 was knocked down in MSCs using lentiviral vectors carrying anti-SDF-1 short hairpin RNA (MSC-SDF KD)...
July 12, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28701166/which-early-life-events-or-current-environmental-and-lifestyle-factors-influence-lung-function-in-adolescents-results-from-the-giniplus-lisaplus-studies
#5
Agnes Luzak, Elaine Fuertes, Claudia Flexeder, Marie Standl, Andrea von Berg, Dietrich Berdel, Sibylle Koletzko, Joachim Heinrich, Dennis Nowak, Holger Schulz
BACKGROUND: Various factors may affect lung function at different stages in life. Since investigations that simultaneously consider several factors are rare, we examined the relative importance of early life, current environmental/lifestyle factors and allergic diseases on lung function in 15-year-olds. METHODS: Best subset selection was performed for linear regression models to investigate associations between 21 diverse early life events and current factors with spirometric parameters (forced vital capacity, forced expiratory volume in 1 s and maximal mid-expiratory flow (FEF25-75)) in 1326 participants of the German GINIplus and LISAplus birth cohorts...
July 12, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28693498/sirolimus-alters-lung-pathology-and-viral-load-following-influenza-a-virus-infection
#6
Ahmed R Alsuwaidi, Junu A George, Saeeda Almarzooqi, Stacey M Hartwig, Steven M Varga, Abdul-Kader Souid
BACKGROUND: Inhibitors of mTOR, such as sirolimus, have been shown to induce thymus involution and inflammatory lung disease in mice. The latter effect supports the role of this serine/threonine kinase in ameliorating lung inflammation. Other studies have shown sirolimus reduces/delays lung disease associated with various strains of influenza A virus (IAV). Thus, the effects of mTOR inhibitors on influenza infection deserve further studies. METHODS: Here, we examined the changes in lung viral copies, pathology and pulmonary function associated with IAV (A/PR/8/34) infection in mice treated with sirolimus...
July 11, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28683800/prevalence-and-risk-factors-of-moderate-to-severe-obstructive-sleep-apnea-syndrome-in-insomnia-sufferers-a-study-on-1311-subjects
#7
Matthieu Hein, Jean-Pol Lanquart, Gwénolé Loas, Philippe Hubain, Paul Linkowski
BACKGROUND: Several studies have investigated the prevalence and risk factors of insomnia in subjects with obstructive sleep apnea syndrome. However, few studies have investigated the prevalence and risk factors for obstructive sleep apnea syndrome in insomnia sufferers. Thus, the aim of this study was to examine the prevalence and risk factors of moderate to severe obstructive sleep apnea syndrome in a large sample of insomnia sufferers. METHODS: Data from 1311 insomnia sufferers who were recruited from the research database of the sleep laboratory of the Erasme Hospital were analysed...
July 6, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28676053/bronchial-thermoplasty-activations-predict-response
#8
David Langton, Joy Sha, Alvin Ing, David Fielding, Francis Thien, Virginia Plummer
BACKGROUND: Bronchial thermoplasty (BT) is an emerging bronchoscopic intervention for the treatment of severe asthma. The predictive factors for clinical response to BT are unknown. We examined the relationship between the number of radiofrequency activations applied and the treatment response observed. METHODS: Data were collected from 24 consecutive cases treated at three Australian centres from June 2014 to March 2016. The baseline characteristics were collated along with the activations delivered...
July 4, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28673351/is-it-possible-to-claim-or-refute-sputum-eosinophils-%C3%A2-3-in-asthmatics-with-sufficient-accuracy-using-biomarkers
#9
LETTER
Sophie F Demarche, Florence N Schleich, Virginie A Paulus, Monique A Henket, Thierry J Van Hees, Renaud E Louis
The concept of asthma inflammatory phenotypes has proved to be important in predicting response to inhaled corticosteroids. Induced sputum, which has been pivotal in the development of the concept of inflammatory phenotypes, is however not widely available. Several studies have proposed to use surrogate exhaled or blood biomarkers, like fractional exhaled nitric oxide (FENO), blood eosinophils and total serum immunoglobulin E (IgE). However, taken alone, each of these biomarkers has moderate accuracy to identify sputum eosinophilia...
July 3, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28666430/derivation-of-therapeutic-lung-spheroid-cells-from-minimally-invasive-transbronchial-pulmonary-biopsies
#10
Phuong-Uyen C Dinh, Jhon Cores, M Taylor Hensley, Adam C Vandergriff, Junnan Tang, Tyler A Allen, Thomas G Caranasos, Kenneth B Adler, Leonard J Lobo, Ke Cheng
BACKGROUND: Resident stem and progenitor cells have been identified in the lung over the last decade, but isolation and culture of these cells remains a challenge. Thus, although these lung stem and progenitor cells provide an ideal source for stem-cell based therapy, mesenchymal stem cells (MSCs) remain the most popular cell therapy product for the treatment of lung diseases. Surgical lung biopsies can be the tissue source but such procedures carry a high risk of mortality. METHODS: In this study we demonstrate that therapeutic lung cells, termed "lung spheroid cells" (LSCs) can be generated from minimally invasive transbronchial lung biopsies using a three-dimensional culture technique...
June 30, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28659192/independent-associations-between-arterial-bicarbonate-apnea-severity-and-hypertension-in-obstructive-sleep-apnea
#11
Davoud Eskandari, Ding Zou, Ludger Grote, Hartmut Schneider, Thomas Penzel, Jan Hedner
BACKGROUND: Obstructive sleep apnea is characterized by intermittent hypoxia and hypercapnia. CO2 production, transport and elimination are influenced by the carbonic anhydrase enzyme. We hypothesized that elevated standard bicarbonate, a proxy for increased carbonic anhydrase activity, is associated with apnea severity and higher blood pressure in patients with obstructive sleep apnea. METHODS: A retrospective analysis of a sleep apnea cohort (n = 830) studied by ambulatory polygraphy...
June 28, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28659178/azithromycin-decreases-nalp3-mrna-stability-in-monocytes-to-limit-inflammasome-dependent-inflammation
#12
Elizabeth A Lendermon, Tiffany A Coon, Joseph S Bednash, Nathaniel M Weathington, John F McDyer, Rama K Mallampalli
BACKGROUND: Azithromycin, an antibiotic used for multiple infectious disorders, exhibits anti-inflammatory effects, but the molecular basis for this activity is not well characterized. Azithromycin inhibits IL-1β-mediated inflammation that is dependent, in part, on inflammasome activity. Here, we investigated the effects of azithromycin on the NACHT, LRR, and PYD domains-containing protein 3 (NALP3) protein, which is the sensing component of the NALP3 inflammasome, in human monocytes...
June 28, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28651580/sex-specific-lung-functional-changes-in-adult-mice-exposed-only-to-second-hand-smoke-in-utero
#13
Alexandra Noël, Rui Xiao, Zakia Perveen, Hasan Zaman, Viviana Le Donne, Arthur Penn
BACKGROUND: An increasing number of epidemiological and experimental studies have associated exposure to second-hand smoke (SHS) during pregnancy with adverse outcomes in newborns. As we have previously shown in mice, in utero exposure to SHS at critical stages of fetal development, results in altered lung responses and increased disease susceptibility upon re-exposure to irritants (SHS or ovalbumin) in adulthood. In this study, we asked whether the in utero SHS exposure alone is sufficient to alter lung structure and function in adult mice...
June 27, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28651591/the-cost-of-systemic-corticosteroid-induced-morbidity-in-severe-asthma-a-health-economic-analysis
#14
L E Barry, J Sweeney, C O'Neill, D Price, L G Heaney
BACKGROUND: Treatment of severe asthma may include high dose systemic-steroid therapy which is associated with substantial additional morbidity. This study estimates the additional healthcare costs associated with steroid-induced morbidity by comparing three patients groups: those with severe asthma, moderate asthma and no asthma. METHODS: Patients with severe asthma (n = 808, GINA step 5 treatment) were matched by age and gender with patients with mild/moderate asthma (n = 3,975, GINA step 2 and 3 treatment) and a non-asthma control cohort (with a diagnosis of rhinitis; n = 2,412) from the Optimum Patient Care Research Database (OPCRD), a nationally representative primary care database...
June 26, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28651576/decreased-t-helper-17-cells-in-tuberculosis-is-associated-with-increased-percentages-of-programmed-death-ligand-1-t-helper-2-and-regulatory-t-cells
#15
Chin-Chung Shu, Ming-Fang Wu, Jann-Yuan Wang, Hsin-Chih Lai, Li-Na Lee, Bor-Luen Chiang, Chong-Jen Yu
BACKGROUND: Tuberculosis (TB) is one of the most common infectious diseases worldwide. During active tuberculosis, T helper (Th) 17 cells are decreased, however the association with inhibitory immune regulation is unclear. METHODS: We enrolled 27 patients with TB and 20 age- and sex-matched controls and studies their lymphocyte status. Peripheral blood lymphocytes were isolated and programmed death-1 (PD-1) and programmed death ligand 1 (PD-L1) were measured on Th17 cells by using flow cytometry after the cells were stimulated with phorbol 12-myristate 13-acetate and ionomycin for 6 h...
June 26, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28646872/role-of-p2x7r-in-the-development-and-progression-of-pulmonary-hypertension
#16
Jie Yin, Shuling You, Haopeng Liu, Li Chen, Chengdong Zhang, Hesheng Hu, Mei Xue, Wenjuan Cheng, Ye Wang, Xinran Li, Yugen Shi, Nannan Li, Suhua Yan, Xiaolu Li
BACKGROUND: Pulmonary arterial hypertension (PAH) is a devastating disease that lacks sufficient treatment. Studies have shown that the Nod-like receptor family, pyrin domain containing 3 (NLRP3) inflammasome contributes to PAH pathogenesis, but the role of the upstream molecular P2X7 receptor (P2X7R) has remained unexplored. We investigated the role of P2X7R in the pathogenesis of PAH. METHODS AND RESULTS: PH was induced by a single subcutaneous injection of monocrotaline (MCT) (60 mg/kg) on left pneumonectomised Sprague-Dawley rats, as validated by significant increases in pulmonary artery pressure and vessel wall thickness...
June 24, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28637505/human-lung-and-monocyte-derived-macrophages-differ-with-regard-to-the-effects-of-%C3%AE-2-adrenoceptor-agonists-on-cytokine-release
#17
Tatiana Victoni, Hélène Salvator, Charlotte Abrial, Marion Brollo, Luis Cristovão Sobrino Porto, Vincent Lagente, Emmanuel Naline, Stanislas Grassin-Delyle, Philippe Devillier
BACKGROUND: β2-adrenoceptor agonists have been shown to reduce the lipopolysaccharide (LPS)-induced cytokine release by human monocyte-derived macrophages (MDMs). We compare the expression of β2-adrenoceptors and the inhibitory effect of formoterol and salmeterol on the LPS-induced release of tumor necrosis factor (TNF)-α, interleukin (IL)-1β, IL-6 and a range of chemokines (CCL2, 3, 4, and IL-8) by human lung macrophages (LMs) and MDMs. METHODS: LMs were isolated from patients undergoing resection and MDMs were obtained from blood monocytes in the presence of GM-CSF...
June 21, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28633665/optimizing-bronchodilation-in-the-prevention-of-copd-exacerbations
#18
REVIEW
Marc Miravitlles, Antonio Anzueto, José R Jardim
The natural disease course of chronic obstructive pulmonary disease (COPD) is often punctuated by exacerbations: acute events of symptom worsening associated with significant morbidity and healthcare resource utilization; reduced quality of life; and increased risk of hospitalization and death. The Global Initiative for Chronic Obstructive Lung Disease (GOLD) recommend that patients at risk of exacerbations (GOLD Groups C and D) receive a long-acting muscarinic antagonist (LAMA) or a long-acting β2-agonist (LABA)/LAMA combination, respectively, as preferred initial treatments...
June 20, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28629421/erratum-to-imatinib-relaxes-the-pulmonary-venous-bed-of-guinea-pigs
#19
Nina A Maihöfer, Said Suleiman, Daniela Dreymüller, Paul W Manley, Rolf Rossaint, Stefan Uhlig, Christian Martin, Annette D Rieg
No abstract text is available yet for this article.
June 19, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28629419/effect-of-beta-blockers-on-exacerbation-rate-and-lung-function-in-chronic-obstructive-pulmonary-disease-copd
#20
Sean Duffy, Robert Marron, Helen Voelker, Richard Albert, John Connett, William Bailey, Richard Casaburi, J Allen Cooper, Jeffrey L Curtis, Mark Dransfield, MeiLan K Han, Barry Make, Nathaniel Marchetti, Fernando Martinez, Stephen Lazarus, Dennis Niewoehner, Paul D Scanlon, Frank Sciurba, Steven Scharf, Robert M Reed, George Washko, Prescott Woodruff, Charlene McEvoy, Shawn Aaron, Don Sin, Gerard J Criner
BACKGROUND: Beta-blockers are commonly prescribed for patients with cardiovascular disease. Providers have been wary of treating chronic obstructive pulmonary disease (COPD) patients with beta-blockers due to concern for bronchospasm, but retrospective studies have shown that cardio-selective beta-blockers are safe in COPD and possibly beneficial. However, these benefits may reflect symptom improvements due to the cardiac effects of the medication. The purpose of this study is to evaluate associations between beta-blocker use and both exacerbation rates and longitudinal measures of lung function in two well-characterized COPD cohorts...
June 19, 2017: Respiratory Research
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