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Vladislav Raclavsky, Nikola Stromerova, Dana Safarova, Jan Bardon, Jaromir Zatloukal, Martin Zapalka, Petr Jakubec, Lucie Navratilova, Radko Novotny
BACKGROUND AND AIMS: Haemophilus influenzae new strain acquisition has been demonstrated to increase the relative risk of acute exacerbation fourfold in contrast to colonisation or chronic infection by the same strain in chronic obstructive pulmonary disease (COPD). Unfortunately, molecular typing techniques are not suitable for routine use due to cost, labour-intensity and need for special expertise. We tested two techniques potentially useful for routine typing, namely the newly available MALDI-TOF MS and the modified McRAPD compared to MLST as the gold standard...
October 6, 2016: Biomedical Papers of the Medical Faculty of the University Palacký, Olomouc, Czechoslovakia
Richard L Blackmon, Silvia M Kreda, Patrick R Sears, Lawrence E Ostrowski, David B Hill, Brian S Chapman, Joseph B Tracy, Amy L Oldenburg
Mucus hydration (wt%) has become an increasingly useful metric in real-time assessment of respiratory health in diseases like cystic fibrosis and COPD, with higher wt% indicative of diseased states. However, available in vivo rheological techniques are lacking. Gold nanorods (GNRs) are attractive biological probes whose diffusion through tissue is sensitive to the correlation length of comprising biopolymers. Through employment of dynamic light scattering theory on OCT signals from GNRs, we find that weakly-constrained GNR diffusion predictably decreases with increasing wt% (more disease-like) mucus...
2016: Proceedings of SPIE
Mamta Ruparel, Jose Luis López-Campos, Ady Castro-Acosta, Sylvia Hartl, Francisco Pozo-Rodriguez, C Michael Roberts
Chronic obstructive pulmonary disease (COPD) care across Europe has high heterogeneity with respect to cost and the services available. Variations in length of stay (LOS) may be attributed to patient characteristics, resource and organisational characteristics, and/or the so-called hospital cluster effect. The European COPD Audit in 13 countries included data from 16 018 hospitalised patients. The recorded variables included information on patient and disease characteristics, and resources available. Variables associated with LOS were evaluated by a multivariate, multilevel analysis...
January 2016: ERJ Open Research
Francesca De Blasio, Erica P A Rutten, Emiel F M Wouters, Luca Scalfi, Francesco De Blasio, Marco A Akkermans, Martijn A Spruit, Frits M E Franssen
BACKGROUND: Visceral adipose tissue (VAT) was shown to be increased in patients with chronic obstructive pulmonary disease (COPD) compared to control subjects with comparable body mass index (BMI). Our aim was to determine the relation of VAT by dual-energy x-ray absorptiometry (DEXA) in patients with COPD by disease severity, BMI, other indices of body composition and static lung volumes. METHODS: 294 COPD patients admitted for rehabilitation were studied. Lung function, static lung volumes and body composition (i...
2016: Multidisciplinary Respiratory Medicine
Eman Mahmoud Fathy, Hanaa Shafiek, Tamer S Morsi, Bassma El Sabaa, Abdelaziz Elnekidy, Mohamed Elhoffy, Mohamed Samy Atta
BACKGROUND: Bronchial vascular remodeling is an underresearched component of airway remodeling in COPD. Image-enhanced bronchoscopy may offer a less invasive method for studying bronchial microvasculature in COPD. OBJECTIVES: To evaluate endobronchial mucosal vasculature and changes in COPD by image-enhanced i-scan3 bronchoscopy and correlate them pathologically by analyzing bronchial mucosal biopsies. METHODS: This case-control study analyzed 29 COPD patients (41...
2016: International Journal of Chronic Obstructive Pulmonary Disease
Sindhuja Giritharan
No abstract text is available yet for this article.
January 2016: Journal of the Association of Physicians of India
Richa Mittal, Sunil K Chhabra
The new A-B-C-D Global Initiative for Chronic Obstructive Lung Disease (GOLD) classification of severity of chronic obstructive pulmonary disease (COPD) is based on combined symptoms and exacerbation risk assessment. The assumed equivalence between dyspnoea modified Medical Research Council (mMRC) grade ≥2 and COPD Assessment Test (CAT) score ≥ 10 to identify more symptoms has been questioned. Whether the exacerbation risk assessment criteria, old GOLD spirometry staging and frequency of exacerbations, are equivalent has not been examined...
October 10, 2016: COPD
Vasileios Andrianopoulos, Bartolome R Celli, Frits M E Franssen, Victor M Pinto-Plata, Peter M A Calverley, Lowie E G W Vanfleteren, Ioannis Vogiatzis, Jørgen Vestbo, Alvar Agusti, Per S Bakke, Stephen I Rennard, William MacNee, Ruth Tal-Singer, Julie C Yates, Emiel F M Wouters, Martijn A Spruit
Exercise-induced oxygen desaturation (EID) is related to mortality in patients with chronic obstructive pulmonary disease (COPD). We investigated: (1) the prevalence of EID; (2) the relative-weight of several physiological determinants of EID including pulmonary emphysema, and (3) the relationship of EID with certain patients' clinical characteristics. Data from 2050 COPD patients (age: 63.3 ± 7.1years; FEV1: 48.7 ± 15.7%pred.) were analyzed. The occurrence of EID (SpO2post ≤88%) at the six-minute walking test (6MWT) was investigated in association with emphysema quantified by computed-tomography (QCT), and several clinical characteristics...
October 2016: Respiratory Medicine
Stefan Markun, Thomas Rosemann, Kaba Dalla-Lana, Claudia Steurer-Stey
BACKGROUND: Recruiting patients for research in primary care is difficult with diseases that tend to remain underdiagnosed, such as chronic obstructive pulmonary disease (COPD). Researchers may consider introducing case finding into patient recruitment, but the impact on recruitment yield is largely unknown. OBJECTIVES: To assess the impact of case finding on recruitment yield and population characteristics in primary care-based COPD research. METHODS: For a cluster randomized controlled trial of COPD in primary care, an opportunistic case finding strategy was introduced into patient recruitment, in addition to recruiting patients with previously diagnosed COPD...
September 29, 2016: Respiration; International Review of Thoracic Diseases
Martin A Bewley, Kylie B R Belchamber, Kirandeep K Chana, Richard C Budd, Gavin Donaldson, Jadwiga A Wedzicha, Christopher E Brightling, Iain Kilty, Louise E Donnelly, Peter J Barnes, Dave Singh, Moira K B Whyte, David H Dockrell
Pulmonary inflammation and bacterial colonization are central to the pathogenesis of chronic obstructive pulmonary disease (COPD). Defects in macrophage phagocytosis of both bacteria and apoptotic cells contribute to the COPD phenotype. Small molecule inhibitors with anti-inflammatory activity against p38 mitogen activated protein kinases (MAPKs), phosphatidyl-inositol-3 kinase (PI3K) and Rho kinase (ROCK) are being investigated as novel therapeutics in COPD. Concerns exist, however, about off-target effects...
2016: PloS One
Fernanda Balbinot, Álvaro da Costa Batista Guedes, Douglas Zaione Nascimento, Juliana Fischman Zampieri, Giordano Rafael Tronco Alves, Edson Marchiori, Adalberto Sperb Rubin, Bruno Hochhegger
Histological examination has always been the gold standard for the detection and quantification of lung remodeling. However, this method has some limitations regarding the invasiveness of tissue acquisition. Quantitative imaging methods enable the acquisition of valuable information on lung structure and function without the removal of tissue from the body; thus, they are useful for disease identification and follow-up. This article reviews the various quantitative imaging modalities used currently for the non-invasive study of chronic obstructive pulmonary disease, asthma, and interstitial lung diseases...
September 23, 2016: Lung
Roberto W Dal Negro, Maria Visconti
BACKGROUND: Erdosteine (ER), a multimechanism, mucoactive agent with anti-oxidant and anti-inflammatory properties, has been shown to improve lung function, decrease plasma reactive oxygen species (ROS), and 8-isoprostane levels in patients with chronic obstructive pulmonary disease (COPD). AIM: To assess vs. placebo the effect of ER on the exercise-induced oxidative stress by measuring and comparing the release of pro-inflammatory mediators in severe COPD patients...
September 17, 2016: Pulmonary Pharmacology & Therapeutics
Jeremy A W Gold, Gordana Derado, Rajal K Mody, Kaitlin Benedict
To determine frequency and risk for sporotrichosis-associated hospitalizations, we analyzed the US 2000-2013 National (Nationwide) Inpatient Sample. An estimated 1,471 hospitalizations occurred (average annual rate 0.35/1 million persons). Hospitalizations were associated with HIV/AIDS, immune-mediated inflammatory diseases, and chronic obstructive pulmonary disease. Although rare, severe sporotrichosis should be considered for at-risk patients.
October 2016: Emerging Infectious Diseases
Mahsa Mirdamadi, Besharat Rahimi, Enayat Safavi, Hamidreza Abtahi, Soheil Peiman
BACKGROUND: The precise head to head relationships between Cardio-pulmonary exercise testing (CPET) parameters and patients' daily symptoms/activities and the disease social/emotional impact are less well defined. In this study, the correlation of COPD daily symptoms and quality of life [assessed by St. George's Respiratory Questionnaire (SGRQ)] and COPD severity index (BODE-index) with CPET parameters were investigated. METHODS: Symptom-limited CPET was performed in 37 consecutive COPD (GOLD I-III) subjects during non-exacerbation phase...
August 2016: Journal of Thoracic Disease
Jannie M B Sand, Gerd Martinez, Anne-Kirsten Midjord, Morten A Karsdal, Diana J Leeming, Peter Lange
OBJECTIVES: Chronic obstructive pulmonary disease (COPD) is characterized by chronic inflammation that leads to excessive remodeling of the lung extracellular matrix (ECM), resulting in release of protein fragments (neo-epitopes) to the blood. Serological markers assessing this have previously been associated with exacerbations of COPD. However, characterization of these in individuals with clinically stable COPD is lacking. The aim of this study was to characterize the collagen remodeling in stable COPD by the serological assessment of neo-epitopes...
October 2016: Clinical Biochemistry
Kazuki Okura, Atsuyoshi Kawagoshi, Masahiro Iwakura, Keiyu Sugawara, Hitomi Takahashi, Takeshi Kashiwagura, Mitsunobu Homma, Masahiro Satake, Takanobu Shioya
BACKGROUND AND OBJECTIVE: Diaphragm function might be useful to predict nocturnal oxygen desaturation in COPD. Ultrasonography has been widely used for the assessment of the diaphragm. We aimed to investigate the relationship between the contractile capability of the diaphragm assessed by ultrasonography and the nocturnal percutaneous arterial oxygen saturation (NSpO2 ) in COPD. METHODS: Twenty-eight male patients with COPD (age, 73 ± 7 years; forced expiratory volume in 1 s (FEV1 ), 54...
September 9, 2016: Respirology: Official Journal of the Asian Pacific Society of Respirology
Bernhard Hartwig, Stefan Schmidt, Isabella Hartwig
Hintergrund: Erkrankungen der Atemorgane treten mit steigendem Alter öfter auf, nehmen weltweit zu und sind häufige Ursachen für Morbidität und Mortalität. In dieser Pilotstudie wurde der Frage nachgegangen, ob eine einmalige 10-minütige Behandlung mit einer Körpertambura eine signifikante und effektive Verbesserung der Lungenfunktion von Patienten mit chronisch-obstruktiver Lungenerkrankung (COPD; GOLD-Stadium A oder B) erbringen kann. Patienten und Methoden: 54 Probanden konnten je zur Hälfte in eine Behandlungsgruppe (Körpertambura) und eine aktive Kontrollgruppe (Atemtherapie) randomisiert werden...
2016: Forschende Komplementärmedizin, Research in Complementary Medicine
Miguel Santibañez Margüello, Roberto Garrastazu, Mario Ruiz-Nuñez, Jose Manuel Helguera, Sandra Arenal, Cristina Bonnardeux, Carlos León, Marc Miravitlles, Juan Luis García-Rivero
Few studies have researched the independent effect of COPD severity on the risk of future exacerbations adjusted by previous exacerbation frequency. We aimed to analyse the independent effect of COPD severity on the risk of exacerbations in the following year, and whether this effect was stronger or not than the effect of a previous history of exacerbations. We conducted a retrospective population-based cohort study including 900 patients with confirmed COPD. Exacerbation frequency was observed for the previous year and for the following year...
2016: NPJ Primary Care Respiratory Medicine
Fulsen Bozkus, Nursel Dikmen, Hatice Sahin, Anil Samur
BACKGROUND: Gamma-glutamyl transferase (gamma-GT) is an enzyme present in the cell membranes, which is used as a new biomarker in prediction of inflammation, myocardial infarction, stroke, and cardiac death. The objective of this study was to investigate the relationship between serum levels of gamma-GT and cardiovascular disease in subjects with COPD and the correlation between serum gamma-GT level and degree of the limitation of air flow in COPD. METHODS: A total of 70 subjects (46...
September 6, 2016: Respiratory Care
Roberto Rodriguez-Roisin, MeiLan K Han, Jørgen Vestbo, Jadwiga A Wedzicha, Prescott G Woodruff, Fernando J Martinez
The 2001 Global Initiative for Chronic Obstructive Lung Disease (GOLD) Report defined five stages of spirometric severity (post-bronchodilator FEV1/FVC≥0.7): 0, and 1 (mild) to 4 (very severe). GOLD Stage 0 was defined by chronic cough and sputum production or chronic mucus hypersecretion (CMH) alone with preserved FEV1/FVC. Subsequently, GOLD 0 was discarded as further evidence of COPD development in subjects with GOLD 0 was not more likely to develop. When expanding symptomatic burden in GOLD 0 to include other chronic respiratory symptoms, such as dyspnea, wheeze, poor quality of life, limited physical activity, and 'COPD exacerbations-like' events needing health resources, symptomatic smokers with normal FEV1 resulted in larger risk of death...
September 6, 2016: American Journal of Respiratory and Critical Care Medicine
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