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Lung capacity

Rachel Boxio, Julien Wartelle, Béatrice Nawrocki-Raby, Brice Lagrange, Laurette Malleret, Timothee Hirche, Clifford Taggart, Yves Pacheco, Gilles Devouassoux, Abderrazzaq Bentaher
BACKGROUND: In acutely injured lungs, massively recruited polymorphonuclear neutrophils (PMNs) secrete abnormally neutrophil elastase (NE). Active NE creates a localized proteolytic environment where various host molecules are degraded leading to impairment of tissue homeostasis. Among the hallmarks of neutrophil-rich pathologies is a disrupted epithelium characterized by the loss of cell-cell adhesion and integrity. Epithelial-cadherin (E-cad) represents one of the most important intercellular junction proteins...
October 17, 2016: Respiratory Research
Yves Claude Guillaume, Lydie Lethier, Claire André
TRAIL is a member of the TNF family of cytokines which induces apoptosis of cancer cells via its binding to its cognate receptors, DR5 a high affinity site and DR4 a site of low affinity. Our working group has recently demonstrated that nanovectorization of TRAIL with single wall carbon nanotubes (abbreviated NPT) enhanced TRAIL affinity to the high affinity site DR5 and increased pro apoptotic potential in different human tumor cell lines. In this paper, the DR4 low affinity site was immobilized on a chromatographic support and the effect of temperature on a wide temperature range 1°C-50°C was studied to calculate the thermodynamic parameters of the binding of TRAIL and NPT to DR4 and DR5 receptors...
October 12, 2016: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
Mei-Yun Liaw, Lin-Yi Wang, Ya-Ping Pong, Yu-Chin Tsai, Yu-Chi Huang, Tsung-Hsun Yang, Meng-Chih Lin
The aim of this study was to investigate the relationships between pulmonary function, respiratory muscle strength, perceived dyspnea, degree of fatigue, and activity of daily living with motor function and neurological status in stroke patients with stable congestive heart failure (CHF).This was a cohort study in a tertiary care medical center. Stroke patients with CHF and exertional dyspnea (New York Heart Association class I-III) were recruited. The baseline characteristics included duration of disease, Brunnstrom stage, spirometry, resting heart rate, resting oxyhemoglobin saturation (SpO2), maximal inspiratory pressure (MIP), maximal expiratory pressure (MEP), Borg scale, fatigue scale, and Barthel index...
October 2016: Medicine (Baltimore)
Gemma Lepri, Jerome Avouac, Paolo Airò, Francisco Anguita Santos, Silvia Bellando-Randone, Jelena Blagojevic, Francisco Garcia Hernàndez, Jose Antonio Gonzalez Nieto, Serena Guiducci, Suzana Jordan, Vidya Limaye, Britta Maurer, Albert Selva-O'Callaghan, Valeria Riccieri, Oliver Distler, Marco Matucci-Cerinic, Yannick Allanore
OBJECTIVES: Interstitial lung disease (ILD) is a key prognostic factor in connective tissue disorders (CTDs). The aim of our study was to assess the changes in pulmonary functional tests (PFTs) in various CTDs, including anti-synthetase syndrome (SYN), systemic sclerosis (SSc) and mixed connective tissue disorder (MCTD), following the use of rituximab therapy. METHODS: A multicentre retrospective analysis of patients with ILD secondary to SYN (n=15), MCTD (n=6) and SSc (n=23)...
September 2016: Clinical and Experimental Rheumatology
Chan Yeu Pu, Mohamed Rizwan Haroon Al Rasheed, Marin Sekosan, Vibhu Sharma
A 61-year-old man was evaluated for a 2 month history of cough and dyspnea without relevant exposures other than pyrethrin containing insecticidal sprays he used while grooming dogs almost daily. High Resolution Computed Tomography (HRCT) of the chest demonstrated a Non-Specific Interstitial Pneumonia (NSIP) pattern. Pulmonary function testing revealed an isolated mildly reduced diffusion capacity. Bronchoalveolar lavage (BAL) results confirmed the presence of foamy histiocytes, lymphocytes, and polymorphonuclear cells consistent with ongoing exposure...
October 17, 2016: American Journal of Industrial Medicine
Tetsuro Sawata, Masashi Bando, Masayuki Nakayama, Naoko Mato, Hideaki Yamasawa, Yukihiko Sugiyama
Objective The influence of smoking on the pathogenesis and clinical course of interstitial pneumonia has recently attracted attention. To clarify the influence of smoking on the clinical patient characteristics and therapeutic effects in patients with interstitial pneumonia presenting with a non-specific interstitial pneumonia (NSIP) pattern, we compared the clinical patient characteristics and therapeutic effects in smokers and nonsmokers in this study. Methods We divided 31 NSIP (16 idiopathic nonspecific interstitial pneumonia and 15 collagen vascular disease-associated nonspecific interstitial pneumonia) patients into smoker and non-smoker groups for each case...
2016: Internal Medicine
Melissa Dullaers, Martijn J Schuijs, Monique Willart, Kaat Fierens, Justine Van Moorleghem, Hamida Hammad, Bart N Lambrecht
BACKGROUND: Allergic asthma is a CD4 Th2-lymphocyte driven disease characterized by airway hyper-responsiveness and eosinophilia. B cells can present antigens to CD4 T cells and produce IgE immunoglobulins which arms effector cells, however mouse models are inconclusive whether B cells are necessary for asthma development. OBJECTIVES: To address the role of B cells in a house dust mite (HDM) driven Th2-high asthma mouse model. METHODS: WT and B cell deficient muMT Mice were sensitized and challenged via the airways with HDM extracts...
October 13, 2016: Journal of Allergy and Clinical Immunology
Mina Akizuki, Naoki Serizawa, Atsuko Ueno, Taku Adachi, Nobuhisa Hagiwara
RATIONALE: Balloon pulmonary angioplasty (BPA) in chronic thromboembolic pulmonary hypertension (CTEPH) improves hemodynamics and exercise capacity. However, its effect on respiratory function is unclear. OBJECTIVES: To investigate the effect of BPA on respiratory function. METHODS: We enrolled inoperable CTEPH who underwent BPA primarily in lower lobe arteries (first series) and upper and middle lobe arteries (second series). We compared changes in hemodynamics and respiratory function between different BPA fields...
October 13, 2016: Chest
John Lowe, Michael Cousins, Sarah J Kotecha, Sailesh Kotecha
Physical activity (PA) is an important mediator of health and disease. Many correlates may play an important role in explaining differences in PA between populations; however, the role of birth outcomes such as prematurity on levels of PA is relatively poorly represented in the literature. Children born preterm may be at risk for reduced levels of PA as they have increased respiratory symptoms as well as decrements in lung function and exercise capacity. Emerging evidence suggests that the effects are prevalent across the whole range of gestational age...
August 30, 2016: Paediatric Respiratory Reviews
Patricia D Freitas, Palmira G Ferreira, Aline G Silva, Rafael Stelmach, Regina M Carvalho-Pinto, Frederico L A Fernandes, Marcio C Mancini, Maria N Sato, Milton A Martins, Celso R F Carvalho
RATIONALE: Clinical control is difficult to achieve in obese patients with asthma. Bariatric surgery has been recommended for weight-loss and to improve asthma control; however, the benefits of nonsurgical interventions have been poorly investigated. OBJECTIVE: To examine the effect of exercise training in a weight-loss program on asthma control, quality of life, inflammatory biomarkers and lung function. METHODS: Fifty-five obese patients with asthma were randomly assigned to either a weight-loss program + exercise (WL+E group, n=28) or a weight-loss program + sham (WL+S group, n=27) group, where the weight-loss program included nutrition (caloric restriction) and psychological therapies...
July 19, 2016: American Journal of Respiratory and Critical Care Medicine
Jonathan P Singer, Patricia P Katz, Allison Soong, Pavan Shrestha, Debbie Huang, Jennifer Ho, Malori Mindo, John R Greenland, Steven R Hays, Jeffrey Golden, Jasleen Kukreja, Mary Ellen Kleinhenz, Rupal J Shah, Paul D Blanc
Under the U.S. Lung Allocation Score (LAS) system, older and sicker patients are prioritized for lung transplantation (LT). The impact of these changes on health-related quality of life (HRQL) after transplant has not been determined. In a single-center prospective cohort study, from 2010-2016 we assessed HRQL before and repeatedly after LT for up to 3 years using the SF12-Physical and Mental Health, the respiratory-specific Airway Questionnaire 20-Revised, and the Euroqol 5D/Visual Analog Scale utility measures by multivariate linear mixed models jointly modeled with death...
October 15, 2016: American Journal of Transplantation
Jin Lin, Yan Wang, Ye-Qing Zou, Xin Chen, Bo Huang, Jing Liu, Yan-Mei Xu, Jing Li, Jing Zhang, Wei-Ming Yang, Qing-Hua Min, Fan Sun, Shu-Qi Li, Qiu-Fang Gao, Xiao-Zhong Wang
MicroRNAs (miRNAs) have been found to play important regulatory roles in various physiological and pathological processes. MiRNAs also exhibit high stability and are present at high concentrations in human bodily fluids. Consequently, miRNAs may represent attractive and novel diagnostic biomarkers for certain clinical conditions. Recently, the capacity for extracellular vesicles, including microvesicles and exosomes, to carry miRNAs that participate in cell-to-cell communication has been described. In the present study, the miRNA expression patterns for three kinds of pleural effusions that were obtained from patients with pneumonia (group A), pulmonary tuberculosis (group B), and lung cancer (group C) were detected with high-throughput sequencing...
October 14, 2016: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
Christina Brandenberger, Christian Mühlfeld
Lung aging is associated with structural remodeling, a decline of respiratory function and a higher susceptibility to acute and chronic lung diseases. Individual factors that modulate pulmonary aging include basic genetic configuration, environmental exposure, life-style and biography of systemic diseases. However, the actual aging of the lung takes place in pulmonary resident cells and is closely linked to aging of the immune system (immunosenescence). Therefore, this article reviews the current knowledge about the impact of aging on pulmonary cells and the immune system, without analyzing those factors that may accelerate the aging process in depth...
October 14, 2016: Cell and Tissue Research
Caroline Anne Mitchell, Alice Pitt, Joe Hulin, Rod Lawson, Fleur Ashby, Ivan Appelqvist, Brigitte Delaney
OBJECTIVES: Increased rates of illicit drug inhalation are thought to expose opiate misusers (OMUs) to an enhanced risk of respiratory health problems. This pilot study aimed to determine the feasibility of undertaking respiratory screening of OMUs in a community clinic. SETTING: Single-centre UK community substance misuse clinic. PARTICIPANTS: All clinic attendees receiving treatment for opiate misuse were eligible to participate. 36 participants (mean age=37) were recruited over a 5-week period...
October 14, 2016: BMJ Open
Praful Schroff, Jason Hitchcock, Christopher Schumann, J Michael Wells, Mark T Dransfield, Surya P Bhatt
Rationale Current practice guidelines recommend pulmonary rehabilitation as an adjunct to standard pharmacologic therapy for individuals with moderate to severe chronic obstructive pulmonary disease (COPD). Whether pulmonary rehabilitation benefits all subjects with COPD independent of baseline disease burden is not known. Objective To test whether pulmonary rehabilitation benefits patients with COPD independent of baseline exercise capacity, dyspnea and lung function. Methods Data from a prospectively maintained database of participants with COPD enrolled in pulmonary rehabilitation at the University of Alabama at Birmingham from 1996 to 2013 was retrospectively analyzed...
October 14, 2016: Annals of the American Thoracic Society
Joseph Em van Agteren, Kristin V Carson, Leong Ung Tiong, Brian J Smith
BACKGROUND: Lung volume reduction surgery (LVRS) performed to treat patients with severe diffuse emphysema was reintroduced in the nineties. Lung volume reduction surgery aims to resect damaged emphysematous lung tissue, thereby increasing elastic properties of the lung. This treatment is hypothesised to improve long-term daily functioning and quality of life, although it may be costly and may be associated with risks of morbidity and mortality. Ten years have passed since the last version of this review was prepared, prompting us to perform an update...
October 14, 2016: Cochrane Database of Systematic Reviews
Bonnie Janzen, Chandima Karunanayake, Donna Rennie, William Pickett, Joshua Lawson, Shelley Kirychuk, Louise Hagel, Ambikaipakan Senthilselvan, Niels Koehncke, James Dosman, Punam Pahwa
INTRODUCTION: To investigate the association of individual and contextual exposures with lung function by gender in rural-dwelling Canadians. METHODS: A cross-sectional mail survey obtained completed questionnaires on exposures from 8263 individuals; a sub-sample of 1609 individuals (762 men, 847 women) additionally participated in clinical lung function testing. The three dependent variables were forced expired volume in one second (FEV1), forced vital capacity (FVC), and FEV1/FVC ratio...
October 13, 2016: Lung
Sâmia Georgia Dantas Linhares, João Carlos Das-Neves Pereira, Paulo Manuel Pêgo Fernades, José Ribas Milanez de Campos
PURPOSE: The aim of this study was to compare the functional exercise capacity and the lung function among patients undergoing early rehabilitation with those submitted to the conventional care after pectus excavatum repair using the Nuss procedure. METHOD: Patients were randomly allocated to the early rehabilitation group (ERG) who started rehabilitation after surgery and the group of the conventional care (CG) received routine care of the institution. They were evaluated before surgery (preoperative) and in hospital discharge day (postoperative)...
October 13, 2016: Pediatric Surgery International
Solon Karapanagiotis, Simone Gambazza, Anna Brivio, Francesco D'Abrosca, Carla Colombo
OBJECTIVE: To investigate the presence of dynamic hyperinflation after the Modified Shuttle Test (MST) and its relationship with lung function, exercise tolerance, and clinical symptoms in Cystic Fibrosis (CF). METHODS: Retrospective observational study. Subjects in clinically stable condition with a CF diagnosis based on a positive sweat test (chloride >60 mEq/L) and/or presence of two disease causing mutations, with available data on MST, spirometry, maximal voluntary ventilation, and inspiratory capacity manoeuvres were considered for the analysis...
October 13, 2016: Pediatric Pulmonology
J-X Zhang, J-F Zhai, X-T Yang, J Wang
OBJECTIVE: Increasing evidence shows that microRNA involves in the development of several types of cancers, however, the role of microRNA-132 (miR-132) in non-small cell lung cancer (NSCLC) metastasis remains largely unknown. In this study, we aimed to investigate the effect of miR-132 on the epithelial-mesenchymal transition (EMT) and the potential mechanisms in NSCLC. PATIENTS AND METHODS: The Quantitative real-time PCR (QRT-PCR) was used to detect the miR-132 levels in 15 NSCLC tissues and cell lines...
September 2016: European Review for Medical and Pharmacological Sciences
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