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"Lung function"

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https://www.readbyqxmd.com/read/29241629/the-expression-of-mirc1-mir17-92-cluster-in-sputum-samples-correlates-with-pulmonary-exacerbations-in-cystic-fibrosis-patients
#1
Kathrin Krause, Benjamin T Kopp, Mia F Tazi, Kyle Caution, Kaitlin Hamilton, Asmaa Badr, Chandra Shrestha, Dmitry Tumin, Don Hayes, Frank Robledo, Luanne Hall-Stoodley, Brett G Klamer, Xiaoli Zhang, Santiago Partida-Sanchez, Narasimham L Parinandi, Stephen E Kirkby, Duaa Dakhlallah, Karen S McCoy, Estelle Cormet-Boyaka, Amal O Amer
INTRODUCTION: Cystic fibrosis (CF) is a multi-organ disorder characterized by chronic sino-pulmonary infections and inflammation. Many patients with CF suffer from repeated pulmonary exacerbations that are predictors of worsened long-term morbidity and mortality. There are no reliable markers that associate with the onset or progression of an exacerbation or pulmonary deterioration. Previously, we found that the Mirc1/Mir17-92a cluster which is comprised of 6 microRNAs (Mirs) is highly expressed in CF mice and negatively regulates autophagy which in turn improves CF transmembrane conductance regulator (CFTR) function...
December 11, 2017: Journal of Cystic Fibrosis: Official Journal of the European Cystic Fibrosis Society
https://www.readbyqxmd.com/read/29239766/fam13a-is-a-modifier-gene-of-cystic-fibrosis-lung-phenotype-regulating-rhoa-activity-actin-cytoskeleton-dynamics-and-epithelial-mesenchymal-transition
#2
Harriet Corvol, Nathalie Rousselet, Kristin E Thompson, Laura Berdah, Guillaume Cottin, Tobias Foussigniere, Elisabeth Longchampt, Laurence Fiette, Edouard Sage, Céline Prunier, Mitchell Drumm, Craig A Hodges, Pierre-Yves Boëlle, Loic Guillot
BACKGROUND: Cystic fibrosis (CF) lung disease severity is highly variable and dependent on several factors including genetic modifiers. Family with sequence similarity 13 member A (FAM13A) has been previously associated with lung function in the general population as well as in several chronic lung diseases, such as chronic obstructive pulmonary disease (COPD), we examined whether FAM13A is a modifier gene of CF lung phenotype. We also studied how FAM13A may contribute to the physiopathological mechanisms associated with CF...
November 24, 2017: Journal of Cystic Fibrosis: Official Journal of the European Cystic Fibrosis Society
https://www.readbyqxmd.com/read/29238999/physiological-gas-exchange-mapping-of-hyperpolarized-129-xe-using-spiral-ideal-and-moxe-in-a-model-of-regional-radiation-induced-lung-injury
#3
Brandon Zanette, Elaine Stirrat, Salomeh Jelveh, Andrew Hope, Giles Santyr
PURPOSE: To map physiological gas exchange parameters using dissolved hyperpolarized (HP) 129 Xe in a rat model of regional radiation-induced lung injury (RILI) with spiral-IDEAL and the model of xenon exchange (MOXE). Results are compared to quantitative histology of pulmonary tissue and red blood cell (RBC) distribution. METHODS: Two cohorts (n=6 each) of age-matched rats were used. One was irradiated in the right-medial lung, producing regional injury. Gas exchange was mapped four weeks post-irradiation by imaging dissolved-phase HP 129 Xe using spiral-IDEAL at five gas exchange timepoints using a clinical 1...
December 14, 2017: Medical Physics
https://www.readbyqxmd.com/read/29238260/the-effect-of-400-%C3%A2%C2%B5g-inhaled-salbutamol-on-3-km-time-trial-performance-in-a-low-humidity-environment
#4
John Molphy, John W Dickinson, Neil J Chester, Mike Loosemore, Gregory Whyte
The Objectives of the study were to investigate whether 400 µg inhaled salbutamol influences 3 km running time-trial performance and lung function in eucapnic voluntary hyperpnoea positive (EVH+ve) and negative (EVH-ve) individuals. Fourteen male participants (22.4 ± 1.6yrs; 76.4 ± 8.7kg; 1.80 ± 0.07 m); (7 EVH+ve; 7 EVH-ve) were recruited following written informed consent. All participants undertook an EVH challenge to identify either EVH+ve (↓FEV1>10%) or EVH-ve (↓FEV1<10%). Participants performed three separate 3 km running time-trials in a low-humidity (20-25%) environment on a non-motorized treadmill, 15 minutes following inhalation of salbutamol (400 µg), placebo (non-active inhalant) or control (no inhalant), in a randomized, single-blind, repeated measures design...
December 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/29238123/epidemiology-triggers-and-severity-of-childhood-asthma-in-ilesa-nigeria-implications-for-management-and-control
#5
Bankole Peter Kuti, Kehinde Oluyori Omole
Background: Knowledge about childhood asthma in a locality will assist clinicians to adequately manage the condition. This study set out to report the epidemiology, triggers of exacerbation, comorbid conditions, and severity of childhood asthma at a tertiary health facility in Nigeria and the implication of these, in management and symptoms control. Methods: Over a 15-month study period, children (aged <15 years) with physician-diagnosed asthma were consecutively recruited at the pediatric chest clinic of the hospital...
January 2017: Nigerian Medical Journal: Journal of the Nigeria Medical Association
https://www.readbyqxmd.com/read/29237906/clinical-efficacy-of-preoperative-vaginal-intracavitary-irradiation-for-stage-ib2-and-iia-cervical-cancer
#6
Fengshuang Li, Yumei Wu, Weimin Kong, Jiandong Wang, Xia Hao, Juwei Niu, Laifu Bai
OBJECTIVE: The purpose of this study was to evaluate the clinical efficacy of preoperative vaginal intracavitary irradiation for Stage Ib2 and IIa cervical cancer. MATERIALS AND METHODS: From June 2008 to June 2014, data from 78 Stage Ib2 and IIa cervical cancer patients (age ≤75 years) with a diameter of local lesions >4 cm were collected in our hospital. Before treatment, all cases were confirmed by biopsy. The patients' general state was good, Karnofsky Performance Score ≥90, heart and lung functioning was normal, and patients were able to tolerate the surgery...
2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/29237607/associations-of-pet-ownership-with-biomarkers-of-ageing-population-based-cohort-study
#7
G David Batty, Paola Zaninotto, Richard G Watt, Steven Bell
OBJECTIVE: To examine the prospective relation between animal companionship and biomarkers of ageing in older people. DESIGN: Analyses of data from the English Longitudinal Study of Ageing, an ongoing, open, prospective cohort study initiated in 2002-03. SETTING: Nationally representative study from England. PARTICIPANTS: 8785 adults (55% women) with a mean age of 67 years (SD 9) at pet ownership assessment in 2010-11 (wave 5)...
December 13, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/29236548/budesonide-instillation-immediately-after-reperfusion-ameliorates-ischemia-reperfusion-induced-injury-in-the-transplanted-lung-of-rat
#8
Wei Gao, Qiu-Ming Meng, Xiao-Guang Cui
PURPOSE: Lung ischemia-reperfusion injury (LIRI) after lung transplantation can lead to primary graft dysfunction. Budesonide can improve endothelial function to reduce lung injury. This study was aimed to examine the effects of budesonide on LIRI and potential mechanisms. METHODS: Wistar rats were randomized and transplanted with syngeneic left lung or received the sham surgery. The recipients were instilled with saline or budesonide immediately after reperfusion...
December 13, 2017: Experimental Lung Research
https://www.readbyqxmd.com/read/29236220/automatic-lung-segmentation-in-functional-spect-images-using-active-shape-models-trained-on-reference-lung-shapes-from-ct
#9
Grigorios-Aris Cheimariotis, Mariam Al-Mashat, Kostas Haris, Anthony H Aletras, Jonas Jögi, Marika Bajc, Nicolaos Maglaveras, Einar Heiberg
OBJECTIVE: Image segmentation is an essential step in quantifying the extent of reduced or absent lung function. The aim of this study is to develop and validate a new tool for automatic segmentation of lungs in ventilation and perfusion SPECT images and compare automatic and manual SPECT lung segmentations with reference computed tomography (CT) volumes. METHODS: A total of 77 subjects (69 patients with obstructive lung disease, and 8 subjects without apparent perfusion of ventilation loss) performed low-dose CT followed by ventilation/perfusion (V/P) SPECT examination in a hybrid gamma camera system...
December 13, 2017: Annals of Nuclear Medicine
https://www.readbyqxmd.com/read/29236049/effect-of-monthly-high-dose-long-term-vitamin-d-on-lung-function-a-randomized-controlled-trial
#10
John D Sluyter, Carlos A Camargo, Debbie Waayer, Carlene M M Lawes, Les Toop, Kay-Tee Khaw, Robert Scragg
Although observational studies suggest positive vitamin D-lung function associations, randomized trials are inconsistent. We examined effects of vitamin D supplementation on lung function. We recruited 442 adults (50-84 years, 58% male) into a randomized, double-blinded, placebo-controlled trial. Participants received, for 1.1 years (median; range = 0.9-1.5 years), either (1) vitamin D₃ 200,000 IU, followed by monthly 100,000 IU doses (n = 226); or (2) placebo monthly (n = 216). At baseline and follow-up, spirometry yielded forced expiratory volume in 1 s (FEV1; primary outcome)...
December 13, 2017: Nutrients
https://www.readbyqxmd.com/read/29233852/inhalation-sedation-in-subjects-with-ards-undergoing-continuous-lateral-rotational-therapy
#11
Andreas Meiser, Heinrich V Groesdonk, Sarah Bonnekessel, Thomas Volk, Hagen Bomberg
INTRODUCTION: Isoflurane has shown better sedation control and potential benefits in patients with ARDS compared to propofol or midazolam, but the practical use during continuous lateral rotational therapy remains unknown. We therefore compared isoflurane with propofol and midazolam regarding sedation depth (per the Richmond Agitation-Sedation Scale), opioid consumption, lung function, and hemodynamics in patients treated with continuous lateral rotational therapy. METHODS: 38 consecutive critically ill surgical subjects were retrospectively studied using a hospital database...
December 12, 2017: Respiratory Care
https://www.readbyqxmd.com/read/29233147/neutrophil-extracellular-traps-are-downregulated-by-glucocorticosteroids-in-lungs-in-an-equine-model-of-asthma
#12
Amandine Vargas, Roxane Boivin, Patricia Cano, Yoana Murcia, Isabelle Bazin, Jean-Pierre Lavoie
BACKGROUND: Severe neutrophilic asthma is poorly responsive to glucocorticosteroids (GC). Neutrophil extracellular traps (NETs) within the lungs have been associated with the severity of airway obstruction and inflammation in asthma, and were found to be unaffected by GC in vitro. As IL-17 is overexpressed in neutrophilic asthma and contributes to steroid insensitivity in different cell types, we hypothesized that NETs formation in asthmatic airways would be resistant to GC through an IL-17 mediated pathway...
December 12, 2017: Respiratory Research
https://www.readbyqxmd.com/read/29232398/remote-ischemic-preconditioning-attenuates-cardiopulmonary-bypass-induced-lung-injury
#13
Xiaona Zhou, Runzhu Jiang, Yucai Dong, Lifeng Wang
The use of cardiopulmonary bypass (CPB) in cardiac surgeries is known to induce pathological changes in vital organs such as lungs. Remote ischemic preconditioning (RIPC) is a protective strategy that has shown to be able to reduce tissue damage related to ischemia-reperfusion injury (IRI). The current study seeks to evaluate the beneficial effects of limb RIPC on lung tissues and function in a rat CPB model. RIPC, which consisted of three cycles of 5-min ischemia and subsequently 5-min reperfusion, was induced in the hind limbs of the animals via a tourniquet...
2017: PloS One
https://www.readbyqxmd.com/read/29232153/respiratory-responses-to-ozone-exposure-the-multicenter-ozone-study-in-older-subjects-moses
#14
Mehrdad Arjomandi, John R Balmes, Mark W Frampton, Philip Bromberg, Paul Stark, Neil E Alexis, David Q Rich, Maria Costantini, Danielle Hollenbeck-Pringle, Nicholas Dagincourt, Milan J Hazucha
RATIONALE: Acute respiratory effects of low-level ozone exposure are not well defined in older adults. OBJECTIVE: The Multicenter Ozone Study in oldEr Subjects (MOSES), although primarily focused on acute cardiovascular effects, provided an opportunity to assess respiratory responses to low concentrations of ozone in older healthy adults. METHODS: We performed a randomized crossover, controlled exposure study of 87 healthy adults (59.9±4...
December 12, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29229270/intratracheal-instillation-of-alveolar-type-ii-cells-enhances-recovery-from-acute-lung-injury-in-rats
#15
Raquel Guillamat-Prats, Ferranda Puig, Marta Camprubí-Rimblas, Raquel Herrero, Anna Serrano-Mollar, Maria Nieves Gómez, Jessica Tijero, Michael A Matthay, Lluís Blanch, Antonio Artigas
BACKGROUND: Acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are characterized by excess production of inflammatory factors. Alveolar type II (ATII) cells help repair damaged lung tissue, rapidly proliferating and differentiating into alveolar type I cells after epithelial cell injury. In ALI, the lack of viable ATII favors progression to more severe lung injury. ATII cells regulate the immune response by synthesizing surfactant and other anti-inflammatory proteins and lipids...
November 8, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/29229103/effect-of-budesonide-formoterol-pressurized-metered-dose-inhaler-on-exacerbations-versus-formoterol-in-chronic-obstructive-pulmonary-disease-the-6-month-randomized-rise-revealing-the-impact-of-symbicort-in-reducing-exacerbations-in-copd-study
#16
Gary T Ferguson, Donald P Tashkin, Tor Skärby, Carin Jorup, Kristina Sandin, Michael Greenwood, Kristine Pemberton, Frank Trudo
BACKGROUND: Prevention of exacerbations is a primary goal for chronic obstructive pulmonary disease (COPD) therapy. This randomized, double-blind, double-dummy, parallel-group, multicenter study evaluated the effect of budesonide/formoterol pressurized metered-dose inhaler (pMDI) versus formoterol dry powder inhaler (DPI) on reducing COPD exacerbations. METHODS: 1219 patients aged ≥40 years with moderate-to-very-severe COPD (per lung function) and a history of ≥1 COPD exacerbation received budesonide/formoterol pMDI 320/9 μg twice daily (BID) during a 4-week run-in...
November 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/29229089/annual-progression-of-endothelial-dysfunction-in-patients-with-copd
#17
Christian F Clarenbach, Noriane A Sievi, Malcolm Kohler
BACKGROUND: The risk to die from cardiovascular disease is particularly high in patients with COPD. This longitudinal study aims to evaluate changes of endothelial function over time and identify underlying mechanisms in COPD patients. METHODS: In stable COPD patients we performed annual assessments of endothelial function by flow-mediated dilatation (FMD), lung function, systemic inflammation and cholesterol, sympathetic activation, oxygenation, physical activity and exercise capacity...
November 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/29229085/prevalence-of-comorbidities-in-copd-patients-by-disease-severity-in-a-german-population
#18
Timm Greulich, Benjamin J D Weist, Andreas Rembert Koczulla, Sabina Janciauskiene, Andreas Klemmer, Wolfram Lux, Peter Alter, Claus F Vogelmeier
Chronic obstructive pulmonary disease (COPD) is commonly associated with multiple comorbidities. Our objective was to assess the prevalence of comorbidities in patients with COPD and to relate their prevalence to the severity of the disease by using a large German health care database. Based on the retrospective analysis of a two-year (2013-2014) database from the German Statutory Health Insurance system, we obtained a representative sample of 4,075,493 german insurants. This sample included 146,141 patients with COPD (age: ≥35 years)...
November 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/29229080/association-of-adiposity-with-pulmonary-function-in-older-chinese-guangzhou-biobank-cohort-study
#19
Jing Pan, Lin Xu, Tai Hing Lam, Chao Qiang Jiang, Wei Sen Zhang, Ya Li Jin, Feng Zhu, Tong Zhu, G Neil Thomas, Kar Keung Cheng, Peymane Adab
OBJECTIVE: We examined the association between different adiposity indices and pulmonary function in Chinese adults in the Guangzhou Biobank Cohort Study (GBCS). METHODS: Participants with body mass index (BMI) < 18.5 (underweight) were excluded. Adiposity indices including BMI, waist circumference (WC), waist hip ratio, waist height ratio and body fat percentage were measured. Lung function was assessed by spirometry using a turbine flowmeter. We analyzed percent predicted for forced expiratory volume in 1 s (FEV1%), forced vital capacity (FVC %) and restrictive respiratory defect (FEV1/FVC ratio > low limits of normal and FVC % <0...
November 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/29228973/cohort-profile-the-saskatchewan-rural-health-study-adult-component
#20
Punam Pahwa, Masud Rana, William Pickett, Chandima P Karunanayake, Khalid Amin, Donna Rennie, Josh Lawson, Shelley Kirychuk, Bonnie Janzen, Niels Koehncke, James Dosman
OBJECTIVES: Less is known about the respiratory health of general farming and non-framing populations. A longitudinal Saskatchewan Rural Health Study (SRHS) was conducted to explore the association between individual and contextual factors with respiratory health outcomes in these populations. Hence, the objectives are to: (i) describe the updated methodology of longitudinal SRHS-an extension of baseline survey methodology published earlier; (ii) compare baseline characteristics and the prevalences of respiratory health outcomes between drops-outs and completers; and (iii) summarize key findings based on baseline survey data...
December 11, 2017: BMC Research Notes
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