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https://www.readbyqxmd.com/read/28025669/bronchoconstriction-induces-structural-and-functional-airway-alterations-in-non-sensitized-rats
#1
Mehdi Eslami-Behroozi, Saeed Pazhoohan, Ehsan Aref, Leila Zare, Mohammad Javan, Sohrab Hajizadeh, Mohammad Reza Raoufy
The impact of mechanical forces on pathogenesis of airway remodeling and the functional consequences in asthma remains to be fully established. In the present study, we investigated the effect of repeated bronchoconstriction induced by methacholine (MCh) on airway remodeling and airway hyperresponsiveness (AHR) in rats with or without sensitization to an external allergen. We provide evidence that repeated bronchoconstriction, using MCh, alone induces airway inflammation and remodeling as well as AHR in non-allergen-sensitized rats...
December 26, 2016: Lung
https://www.readbyqxmd.com/read/28005150/early-trends-in-bronchoscopic-lung-volume-reduction-a-systematic-review-and-meta-analysis-of-efficacy-parameters
#2
REVIEW
Abhishek Kumar, Rajany Dy, Kanwaljit Singh, M Jeffery Mador
INTRODUCTION: The goal of our systematic review and meta-analysis is to examine the therapeutic effectiveness of bronchoscopic lung volume reduction (BLVR), and to compare it with medical management and lung volume reduction surgery. METHODS: Variables of interest were absolute change in FEV1, 6MWT, and SGRQ. Meta-analysis was performed for the BLVR modalities with ≥3 trials. Of the 18 shortlisted publications, only valves (four trials; n = 159) and coils (six trials; n = 194) qualified for meta-analysis...
December 22, 2016: Lung
https://www.readbyqxmd.com/read/28005149/non-steroidal-anti-inflammatory-drugs-may-worsen-the-course-of-community-acquired-pneumonia-a-cohort-study
#3
Damien Basille, Nathalie Plouvier, Charlotte Trouve, Pierre Duhaut, Claire Andrejak, Vincent Jounieaux
PURPOSE: Non-steroidal anti-inflammatory drugs (NSAIDs) are frequently prescribed or used as self-medication in cases of community-acquired pneumonia (CAP). Nevertheless, the consequences of such medication on the risk of pleuroparenchymal complications are not well known. The aim was to investigate whether exposure to NSAIDs prior to hospital admission among patients suffering from CAP is associated with the development of pleural complications or a lung abscess. METHODS: All consecutive non-immunocompromised patients with CAP and admitted to a university hospital were prospectively included (2-year period)...
December 22, 2016: Lung
https://www.readbyqxmd.com/read/28004181/the-effect-of-aerosol-saline-on-laboratory-induced-dyspnea
#4
C R O'Donnell, R W Lansing, R M Schwartzstein, Robert Banzett
PURPOSE: In the 'placebo arm' of a recent study, we found that aerosol saline (sham treatment) produced substantial relief of laboratory-induced dyspnea (Breathing discomfort-BD) in nearly half the subjects. The sham intervention included a physiological change, and instructions to subjects could have produced expectation of dyspnea relief. In the present study, we attempted to discover whether the response to sham aerosol was driven by behavioral or physiological aspects of the intervention...
December 21, 2016: Lung
https://www.readbyqxmd.com/read/27915422/state-of-the-art-review-of-the-right-ventricle-in-copd-patients-it-is-time-to-look-closer
#5
REVIEW
Daniela Graner Schuwartz Tannus-Silva, Marcelo Fouad Rabahi
Since the first description of pulmonary circulation in the 16th century, the knowledge of the complex interaction between the heart and lungs has greatly improved. Hypoxemia plays a classical role in the development of complications such as pulmonary hypertension and right ventricle (RV) dysfunction in patients presenting with chronic obstructive pulmonary disease (COPD). However, more recent results have revealed the presence of RV vascular structural and functional changes even in patients with mild COPD, without hypoxemia or pulmonary hypertension at rest...
December 3, 2016: Lung
https://www.readbyqxmd.com/read/27900466/overview-of-the-impact-of-depression-and-anxiety-in-chronic-obstructive-pulmonary-disease
#6
Josep Montserrat-Capdevila, Pere Godoy, Josep Ramon Marsal, Ferran Barbé, Josep Pifarré, Miquel Alsedà, Marta Ortega
BACKGROUND: Anxiety and depression are common entities in patients diagnosed with COPD. However, the impact that they have on the exacerbation of illness is scarcely studied. OBJECTIVE: To determine if the presence of anxiety and depression is associated with a greater risk of frequent exacerbation (≥2 per year) in patients diagnosed with COPD. PATIENTS AND METHODS: A cohort study that analysed frequent exacerbation and associated factors in 512 patients monitored during 2 years...
November 29, 2016: Lung
https://www.readbyqxmd.com/read/27900465/polymorphisms-in-beta-2-adrenergic-receptor-gene-and-association-with-tuberculosis
#7
Abbas Farzin Azar, Nima Hosseini Jazani, Ahad Bazmani, Ali Vahhabi, Shahram Shahabi
PURPOSE: Genetic susceptibility for tuberculosis in human has been previously demonstrated. Polymorphisms in genes involved in immune responses may alter the susceptibility of individuals to tuberculosis. Polymorphisms of beta-2 adrenergic receptor (ADRB2) gene can be possibly an important risk factor in tuberculosis. In this study, the association between rs1042713 (Arg16Gly +46A>G) and rs1042714 (Gln27Glu +79C>G) polymorphisms in ADRB2 gene and tuberculosis was evaluated. METHODS: Genotype distributions of the rs1042713 (Arg16Gly +46A>G) and rs1042714 (Gln27Glu +79C>G) polymorphisms in ADRB2 gene in 106 patients with pulmonary tuberculosis and 88 healthy subjects were studied by PCR-RFLP method in an Iranian population...
November 29, 2016: Lung
https://www.readbyqxmd.com/read/27888398/the-value-of-the-electrocardiogram-for-evaluating-prognosis-in-patients-with-idiopathic-pulmonary-arterial-hypertension
#8
Xiao-Ling Cheng, Jian-Guo He, Zhi-Hong Liu, Qing Gu, Xin-Hai Ni, Zhi-Hui Zhao, Qin Luo, Chang-Ming Xiong
BACKGROUND: Association between electrocardiography (ECG) features and right ventricular anatomy and physiology has been established. This study is aimed to identify the value of 12-lead ECG in evaluating prognosis of patients with idiopathic pulmonary arterial hypertension (IPAH). METHOD: 194 patients with newly diagnosed IPAH were included in this study. Correlations between electrocardiography variables and hemodynamics were assessed. Univariate and multivariable cox regression analysis were performed to identify ECG variables for predicting all-cause mortality in IPAH...
November 25, 2016: Lung
https://www.readbyqxmd.com/read/27866277/identification-of-key-cost-generating-events-for-idiopathic-pulmonary-fibrosis-a-systematic-review
#9
REVIEW
Shalvaree Vaidya, Clare L Hibbert, Elizabeth Kinter, Stefan Boes
BACKGROUND: Idiopathic pulmonary fibrosis (IPF) is an incurable, debilitating disease which impairs lung function and eventually leads to death. Currently, there is a lack of effective modifying therapies and treatments for IPF as the underlying epidemiological mechanism is not clearly understood. This leads to difficulty in diagnosing and managing IPF, which results in a high incurment of disease-associated cost. Even though IPF poses a substantial economic burden, there is a lack of research available on cost triggers and healthcare utilization, which can be a barrier to future economic evaluations of new medicines for IPF...
November 19, 2016: Lung
https://www.readbyqxmd.com/read/27866276/manual-intrapleural-saline-flushing-plus-urokinase-a-potentially-useful-therapy-for-complicated-parapneumonic-effusions-and-empyemas
#10
José M Porcel, Horacio Valencia, Silvia Bielsa
PURPOSE: We sought to evaluate the safety profile and effectiveness of manual pleural saline flushing, in addition to urokinase, for managing complicated parapneumonic effusions and empyemas. METHODS: Retrospective comparative review of 23 consecutive patients with complicated parapneumonic effusions or empyemas who received saline flushing plus urokinase through small-bore chest catheters, and 39 who were only treated with fibrinolytics. Both groups had similar baseline characteristics and treatments were mostly protocol-driven...
November 19, 2016: Lung
https://www.readbyqxmd.com/read/27864635/soluble-cd200-correlates-with-interleukin-6-levels-in-sera-of-copd-patients-potential-implication-of-the-cd200-cd200r-axis-in-the-disease-course
#11
Priya Sakthivel, Angele Breithaupt, Marcus Gereke, David A Copland, Christian Schulz, Achim D Gruber, Andrew D Dick, Jens Schreiber, Dunja Bruder
BACKGROUND: COPD represents a multifactorial lung disorder with high morbidity and mortality. Despite intensive research concerning the underlying disease mechanisms, the involvement of the CD200/CD200R axis in supporting or preventing the onset of COPD has not yet been addressed. Since the CD200/CD200R axis is crucially implicated in the maintenance of pulmonary immune homeostasis, we hypothesized that it might be involved in controlling the onset of COPD. METHODS: To address this, we analyzed the serum samples from COPD patients and normal controls for soluble (s) CD200 and correlated the data to COPD-relevant clinical parameters...
November 18, 2016: Lung
https://www.readbyqxmd.com/read/27858160/assessing-the-therapeutic-response-to-pirfenidone-in-idiopathic-pulmonary-fibrosis-can-we-do-better-than-with-forced-vital-capacity-alone
#12
Karishma Hosein, Jamie Le, Marco Mura
New anti-fibrotic agents for idiopathic pulmonary fibrosis (IPF) were approved based on the results of forced vital capacity (FVC) trends, although concerns were raised about the reliability of FVC as the only endpoint parameter. We hypothesized that IPF-specific multi-dimensional scores (Composite Physiologic Index-CPI; gender-age-physiology-GAP; risk stratification score-RISE) would better capture response to therapy. In this pilot study, treated and untreated cohorts of IPF patients, matched for demographic and functional characteristics were prospectively followed for 1 year, at 4-month intervals...
November 17, 2016: Lung
https://www.readbyqxmd.com/read/27853876/impact-of-non-invasive-ventilation-on-sympathetic-nerve-activity-in-chronic-obstructive-pulmonary-disease
#13
Helge Haarmann, Jan Folle, Xuan Phuc Nguyen, Peter Herrmann, Karsten Heusser, Gerd Hasenfuß, Stefan Andreas, Tobias Raupach
PURPOSE: Chronic obstructive pulmonary disease (COPD) is associated with elevated sympathetic nerve activity, which is probably linked to an increased cardiovascular risk, and may contribute to muscle dysfunction by heightened muscle vasoconstrictor drive. We hypothesized that resistive unloading of respiratory muscles by intermittent non-invasive ventilation (NIV) reduces sympathetic tone at rest and during subsequent handgrip exercise in patients with COPD. METHODS: Muscle sympathetic nerve activity (MSNA) in the peroneal nerve, heart rate, blood pressure, CO2, and SpO2 were continuously recorded in 5 COPD patients with intermittent NIV and 11 control COPD patients without NIV...
November 16, 2016: Lung
https://www.readbyqxmd.com/read/27803970/the-maximal-expiratory-to-inspiratory-pressure-ratio-and-supine-vital-capacity-as-screening-tests-for-diaphragm-dysfunction
#14
Patrick Koo, Dennis O Oyieng'o, Eric J Gartman, Jigme M Sethi, Charles B Eaton, F Dennis McCool
PURPOSE: The change in vital capacity from the seated to supine position (∆VC-supine) is used to screen for diaphragm dysfunction (DD), but some individuals are unable to tolerate the supine position. Since expiratory muscle function is often preserved in patients with isolated DD and inspiratory strength is reduced, the purpose of this study was to examine if the ratio of maximal expiratory pressure to maximal inspiratory pressure (MEP/MIP) may provide an alternative to ∆VC-supine when screening patients for DD...
November 1, 2016: Lung
https://www.readbyqxmd.com/read/27803969/erratum-to-effects-of-twenty-days-of-the-ketogenic-diet-on-metabolic-and-respiratory-parameters-in-healthy-subjects
#15
Alessandro Rubini, Gerardo Bosco, Alessandra Lodi, Lorenzo Cenci, Andrea Parmagnani, Keith Grimaldi, Yang Zhongjin, Antonio Paoli
No abstract text is available yet for this article.
November 1, 2016: Lung
https://www.readbyqxmd.com/read/27787611/delirium-is-a-strong-predictor-of-mortality-in-patients-receiving-non-invasive-positive-pressure-ventilation
#16
Ka-Yee Chan, Linda S L Cheng, Ivan W C Mak, Shu-Wah Ng, Michael G C Yiu, Chung-Ming Chu
PURPOSE: Non-invasive positive pressure ventilation (NIPPV) has gained popularity over the years in the treatment of acute respiratory failure (ARF). Preliminary evidence suggests that delirium is an important factor contributing to NIPPV failure and death. This study was conducted to evaluate delirium and other associated factors of deaths in patients with ARF requiring the use of NIPPV. METHODS: A prospective observational study was conducted in a specialised NIPPV unit...
October 27, 2016: Lung
https://www.readbyqxmd.com/read/27770204/overnight-changes-in-lung-function-of-obese-patients-with-obstructive-sleep-apnoea
#17
Laszlo Kunos, Zsofia Lazar, Fruzsina Martinovszky, Adam D Tarnoki, David L Tarnoki, Daniel Kovacs, Bianka Forgo, Peter Horvath, Gyorgy Losonczy, Andras Bikov
PURPOSE: Obstructive sleep apnoea (OSA) is a prevalent disorder, characterised by collapse of the upper airways during sleep. The impact of sleep-disordered breathing on pulmonary function indices is however currently not well described. The aim of the study was to evaluate diurnal change in lung function indices in a cohort of patients with OSA and relate pulmonary function changes to disease severity. METHODS: 42 patients with OSA and 73 healthy control subjects participated in the study...
October 21, 2016: Lung
https://www.readbyqxmd.com/read/27770203/acknowledgment-of-reviewers-2015
#18
(no author information available yet)
No abstract text is available yet for this article.
October 21, 2016: Lung
https://www.readbyqxmd.com/read/27704259/the-emulsified-pfc-oxycyte-%C3%A2-improved-oxygen-content-and-lung-injury-score-in-a-swine-model-of-oleic-acid-lung-injury-oali
#19
Ashraful Haque, Anke H Scultetus, Francoise Arnaud, Leonora J Dickson, Steve Chun, George McNamee, Charles R Auker, Richard M McCarron, Richard T Mahon
PURPOSE: Perfluorocarbons (PFCs) can transport 50 times more oxygen than human plasma. Their properties may be advantageous in preservation of tissue viability in oxygen-deprived states, such as in acute lung injury. We hypothesized that an intravenous dose of the PFC emulsion Oxycyte(®) would improve tissue oxygenation and thereby mitigate the effects of acute lung injury. METHODS: Intravenous oleic acid (OA) was used to induce lung injury in anesthetized and instrumented Yorkshire swine assigned to three experimental groups: (1) PFC post-OA received Oxycyte(®) (5 ml/kg) 45 min after oleic acid-induced lung injury (OALI); (2) PFC pre-OA received Oxycyte(®) 45 min before OALI; and (3) Controls which received equivalent dose of normal saline...
December 2016: Lung
https://www.readbyqxmd.com/read/27663257/advances-in-imaging-and-automated-quantification-of-pulmonary-diseases-in-non-neoplastic-diseases
#20
REVIEW
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...
December 2016: Lung
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