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Exhaled breath condensate

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https://www.readbyqxmd.com/read/28634021/mycoplasma-pneumoniae-and-health-outcomes-in-children-with-asthma
#1
Pamela R Wood, Jordan C Kampschmidt, Peter H Dube, Marianna P Cagle, Paola Chaparro, Norma S Ketchum, Thirumalai R Kannan, Harjinder Singh, Jay I Peters, Joel B Baseman, Edward G Brooks
BACKGROUND: Acute infections with Mycoplasma pneumoniae (Mp) have been associated with worsening asthma in children. Mp can be present in the respiratory tract for extended periods; it is unknown whether the long-term persistence of Mp in the respiratory tract affects long-term asthma control. OBJECTIVE: To determine the effect of Mp on asthma control. METHODS: We enrolled 31 pediatric subjects 3 to 10 years of age with persistent asthma who completed up to 8 visits over a 24-month period...
June 17, 2017: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/28625881/effects-of-exposure-to-biomass-burning-on-pulmonary-inflammatory-markers-and-pulmonary-function-in-individuals-with-copd
#2
D Ramos, M Proença, M R Leite, A D Ferreira, I B Trevisan, G F S Brígida, G Y Tacao, E M C Ramos
INTRODUCTION: Pulmonary rehabilitation (PR) has many benefits for individuals with COPD. However, it is not clear whether PR could prevent the hazards of air pollution exposure. This study aimed to analyze the effects of biomass burning exposure on pulmonary inflammatory markers and pulmonary function in individuals with COPD, participants and non-participants of PR. METHODS: 35 subjects were divided into three groups: individuals with COPD who received PR (G1, n=15), those who did not (G2, n=10), and a control group composed of healthy individuals without COPD (CG, n=10)...
June 15, 2017: Revista Portuguesa de Pneumologia
https://www.readbyqxmd.com/read/28619761/exhaled-breath-condensate-biomarkers-for-the-early-diagnosis-of-lung-cancer-using-proteomics
#3
Laura M López-Sánchez, Bernabé Jurado-Gámez, Nuria Feu-Collado, Araceli Valverde, Amanda Cañas, Jose L Fernández-Rueda, Enrique Aranda, Antonio Rodríguez-Ariza
We explored whether the proteomic analysis of exhaled breath condensate (EBC) may provide biomarkers for non-invasive screening for the early detection of lung cancer (LC). EBC was collected from 192 individuals (49 control (C), 49 risk factor-smoking (S), 46 chronic obstructive pulmonary disease (COPD) and 48 LC (LC)). Using LC-MS/MS, 348 different proteins with a different pattern among the four groups were identified in EBC samples. Significantly more proteins were identified in the EBC from LC compared to other groups (C:12...
June 15, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28617073/metabolomics-of-exhaled-breath-condensate-a-means-for-phenotyping-respiratory-diseases
#4
Mauro Maniscalco, Andrea Motta
No abstract text is available yet for this article.
June 15, 2017: Biomarkers in Medicine
https://www.readbyqxmd.com/read/28595790/trace-metals-in-fluids-lining-the-respiratory-system-of-patients-with-idiopathic-pulmonary-fibrosis-and-diffuse-lung-diseases
#5
REVIEW
Elena Bargagli, Federico Lavorini, Massimo Pistolesi, Elisabetta Rosi, Antje Prasse, Emilia Rota, Luca Voltolini
Idiopathic pulmonary fibrosis (IPF) is an interstitial lung disease with a poor prognosis and an undefined etiopathogenesis. Oxidative stress contributes to alveolar injury and fibrosis development and, because transition metals are essential to the functioning of most proteins involved in redox reactions, a better knowledge of metal concentrations and metabolism in the respiratory system of IPF patients may provide a valuable complementary approach to prevent and manage a disease which is often misdiagnosed or diagnosed in later stages...
July 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28583012/exhaled-breath-analysis-in-obstructive-sleep-apnea
#6
Esther I Schwarz, Anna Engler, Malcolm Kohler
Breath analysis is a novel application that can be used for non-invasive metabolic phenotyping and identification of disease specific breath patterns. Obstructive sleep apnea (OSA) is highly prevalent and has diverse metabolic and cardiovascular consequences, many of them incompletely understood. Areas covered: This review systematically summarizes the current evidence from breath metabolomics using immunoassays of breath condensate, off-line mass spectrometry as well as real-time analysis by electronic sensors and by untargeted mass spectrometry, and discusses the challenges and perspectives of breath analysis in OSA...
June 14, 2017: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/28551684/exhaled-breath-condensate-acidification-occurs-during-surgery-for-abdominal-cancer
#7
Archontia Mahairidou, Sophia Rodopoulou, Ioannis Tomos, Eirini Maratou, Effrosyni Manali, Thomas Raptakis, Spyros A Papiris, Anna Karakatsani
BACKGROUND/AIM: Acidification of exhaled breath condensate (EBC), reflecting airway inflammation and oxidative stress, has been reported in lung cancer patients undergoing lobectomy. We undertook this study to examine EBC pH changes during surgery for abdominal cancer. PATIENTS AND METHODS: EBC pH was measured from 20 patients undergoing abdominal cancer resection before and during surgery. Repeated-measures of ANOVA and random-effects linear models were applied to compare mean EBC pH values in samples collected at different times...
June 2017: Anticancer Research
https://www.readbyqxmd.com/read/28504995/remote-ischemic-preconditioning-decreases-oxidative-lung-damage-after-pulmonary-lobectomy-a-single-center-randomized-double-blind-controlled-trial
#8
José García-de-la-Asunción, Laura Bruno, Jaume Perez-Griera, Genaro Galan, Alfonso Morcillo, Richard Wins, Eva García-Del-Olmo, Ricardo Guijarro, Benjamín Sarriá, Francisco Martí, Marina Soro, Francisco Javier Belda
BACKGROUND: During lobectomy in patients with lung cancer, the operated lung is often -collapsed and hypoperfused. Ischemia/reperfusion injury may then occur when the lung is -re-expanded. We hypothesized that remote ischemic preconditioning (RIPC) would decrease oxidative lung damage and improve gas exchange in the postoperative period. METHODS: We conducted a single-center, randomized, double-blind trial in patients with nonsmall cell lung cancer undergoing elective lung lobectomy...
May 11, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28469199/exhaled-breath-condensate-to-discriminate-individuals-with-different-smoking-habits-by-gc-tof-ms
#9
A Peralbo-Molina, M Calderón-Santiago, B Jurado-Gámez, M D Luque de Castro, F Priego-Capote
Smoking is a crucial factor in respiratory diseases and lung inflammation, which are the reasons for high mortality worldwide. Despite the negative impact that tobacco consumption causes on health, few metabolomics studies have compared the composition of biofluids from smoker and non-smoker individuals. Exhaled breath condensate (EBC) is one of the biofluids less employed for clinical studies despite its non-invasive sampling and the foreseeable relationship between its composition and respiratory diseases...
May 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28452299/new-insights-into-treatment-of-children-with-exercise-induced-asthma-symptoms
#10
Iwona Stelmach, Anna Sztafińska, Joanna Jerzyńska, Daniela Podlecka, Paweł Majak, Włodzimierz Stelmach
BACKGROUND: Exercise is one of the most common triggers of bronchoconstriction and affects up to 80% of children with asthma. OBJECTIVE: The purpose of this randomized, double-blind, placebo-controlled study was to assess the effectiveness of treatment with ciclesonide 160 microgram, either alone, with a higher dose, with a leukotriene receptor antagonist (LTRA), or with a long-acting beta-agonist (LABA) in children with asthma with postexercise-induced symptoms...
November 1, 2016: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/28446552/a-european-respiratory-society-technical-standard-exhaled-biomarkers-in-lung-disease
#11
Ildiko Horváth, Peter J Barnes, Stelios Loukides, Peter J Sterk, Marieann Högman, Anna-Carin Olin, Anton Amann, Balazs Antus, Eugenio Baraldi, Andras Bikov, Agnes W Boots, Lieuwe D Bos, Paul Brinkman, Caterina Bucca, Giovanna E Carpagnano, Massimo Corradi, Simona Cristescu, Johan C de Jongste, Anh-Tuan Dinh-Xuan, Edward Dompeling, Niki Fens, Stephen Fowler, Jens M Hohlfeld, Olaf Holz, Quirijn Jöbsis, Kim Van De Kant, Hugo H Knobel, Konstantinos Kostikas, Lauri Lehtimäki, Jon Lundberg, Paolo Montuschi, Alain Van Muylem, Giorgio Pennazza, Petra Reinhold, Fabio L M Ricciardolo, Philippe Rosias, Marco Santonico, Marc P van der Schee, Frederik-Jan van Schooten, Antonio Spanevello, Thomy Tonia, Teunis J Vink
Breath tests cover the fraction of nitric oxide in expired gas (FeNO), volatile organic compounds (VOCs), variables in exhaled breath condensate (EBC) and other measurements. For EBC and for FeNO, official recommendations for standardised procedures are more than 10 years old and there is none for exhaled VOCs and particles. The aim of this document is to provide technical standards and recommendations for sample collection and analytic approaches and to highlight future research priorities in the field. For EBC and FeNO, new developments and advances in technology have been evaluated in the current document...
April 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28415460/poly-arginine-graphene-quantum-dots-as-a-biocompatible-and-non-toxic-nanocomposite-layer-by-layer-electrochemical-preparation-characterization-and-non-invasive-malondialdehyde-sensory-application-in-exhaled-breath-condensate
#12
Mohammad Hasanzadeh, Fozieh Mokhtari, Nasrin Shadjou, Aziz Eftekhari, Ahad Mokhtarzadeh, Vahid Jouyban-Gharamaleki, Soltanali Mahboob
This study reports on the electropolymerization of a low toxic and biocompatible polymer with entitle poly arginine-graphene quantum dots (PARG-GQDs) as a novel strategy for surface modification of glassy carbon (GC) surface and preparation a new interface for biomedical application. The fabrication of PARG-GQDs on GCE was performed using Layer-by-layer regime. Scanning electron microscopy (SEM) was confirmed dispersion of GQDs on the surface of PARG which lead to increase of surface coverage of PARG. The redox behavior of prepared sensor was then characterized by cyclic voltammetry (CV), differential pulse voltammetry (DPV) and chronoamperometry (CHA), square wave voltammetry (SWV), linear sweep voltammetry (LSV)...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28411827/sensitive-determination-of-malondialdehyde-in-exhaled-breath-condensate-and-biological-fluids-by-capillary-electrophoresis-with-laser-induced-fluorescence-detection
#13
Júlia Lačná, František Foret, Petr Kubáň
In this work, a sensitive capillary electrophoresis method with laser induced fluorescence detection for determination of malondialdehyde in various biological fluids was developed. Malondialdehyde reacts with thiobarbituric acid under optimized conditions of pH=2, reaction time of 60min and temperature of 90°C, yielding an adduct that can be separated in a 50mM sodium borate background electrolyte at pH 9. The separation of the formed adduct was accomplished in less than 6min with limit of detection of 1...
July 1, 2017: Talanta
https://www.readbyqxmd.com/read/28406294/noninvasive-respiratory-metabolite-analysis-associated-with-clinical-disease-in-cetaceans-a-deepwater-horizon-oil-spill-study
#14
Alberto Pasamontes, Alexander A Aksenov, Michael Schivo, Teri Rowles, Cynthia R Smith, Lori H Schwacke, Randall S Wells, Laura Yeates, Stephanie Venn-Watson, Cristina E Davis
Health assessments of wild cetaceans can be challenging due to the difficulty of gaining access to conventional diagnostic matrices of blood, serum and others. While the noninvasive detection of metabolites in exhaled breath could potentially help to address this problem, there exists a knowledge gap regarding associations between known disease states and breath metabolite profiles in cetaceans. This technology was applied to the largest marine oil spill in U.S. history (The 2010 Deepwater Horizon oil spill in the Gulf of Mexico)...
May 16, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28403875/determining-the-presence-of-asthma-related-molecules-and-salivary-contamination-in-exhaled-breath-condensate
#15
Charmion Cruickshank-Quinn, Michael Armstrong, Roger Powell, Joe Gomez, Marc Elie, Nichole Reisdorph
BACKGROUND: Researchers investigating lung diseases, such as asthma, have questioned whether certain compounds previously reported in exhaled breath condensate (EBC) originate from saliva contamination. Moreover, despite its increasing use in 'omics profiling studies, the constituents of EBC remain largely uncharacterized. The present study aims to define the usefulness of EBC in investigating lung disease by comparing EBC, saliva, and saliva-contaminated EBC using targeted and untargeted mass spectrometry and the potential of metabolite loss from adsorption to EBC sample collection tubes...
April 12, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28390585/biomarkers-of-oxidative-stress-and-antioxidants-in-severe-asthma-a-prospective-case-control-study
#16
Abigail Bishopp, Ramamurthy Sathyamurthy, Sarah Manney, Craig Webbster, Mamidipudi Thirumala Krishna, Adel H Mansur
BACKGROUND: Bronchial airway inflammation is the hallmark of asthma, which may be driven by an imbalance between oxidative stress and antioxidant defenses. Antioxidants deficiency may play a role, but this has remained unconfirmed. OBJECTIVE: To evaluate the oxidative stress burden and antioxidants defenses in patients with increasing asthma severity. METHODS: This prospective case-control study compared fractional exhaled nitric oxide (FeNO), exhaled breath condensate nitrite/nitrate (EBC-NOx), spirometry, and serum vitamins and trace elements among patients with and without asthma...
April 2017: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/28389539/microbiota-in-exhaled-breath-condensate-and-the-lung
#17
Laura Glendinning, Steven Wright, Peter Tennant, Andrew C Gill, David Collie, Gerry McLachlan
The lung microbiota is commonly sampled using relatively invasive bronchoscopic procedures. Exhaled breath condensate (EBC) collection potentially offers a less invasive alternative for lung microbiota sampling. We compared lung microbiota samples retrieved by protected specimen brushings (PSB) and exhaled breath condensate collection. We also sought to assess whether aerosolised antibiotic treatment would influence the lung microbiota and whether EBC was sensitive enough to detect such changes.EBC was collected from 6 conscious sheep, and then from the same anaesthetised sheep during mechanical ventilation...
April 7, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28385290/post-prandial-systemic-8-isoprostane-increases-after-consumption-of-moderate-and-high-fat-meals-in-insufficiently-active-males
#18
S P Kurti, S R Emerson, S K Rosenkranz, C S Teeman, E M Emerson, B J Cull, J R Smith, C A Harms
A single high-fat meal (HFM) leads to an increase in triglycerides and oxidative stress. Oxidative stress can be assessed via 8-isoprostane generation, which is associated with the development of asthma and cardiovascular disease. No previous research has investigated whether airway and systemic 8-isoprostane increases postprandially in nonasthmatic participants according to the energy and fat content of a meal. Our purpose was to assess airway and systemic 8-isoprostane after a HFM and a true-to-life moderate-fat meal (MFM)...
March 2017: Nutrition Research
https://www.readbyqxmd.com/read/28378957/asthma-and-gastro-oesophageal-reflux-disease-a-multidisciplinary-point-of-view
#19
Paolo Solidoro, Filippo Patrucco, Sharmila Fagoonee, Rinaldo Pellicano
Asthma and gastro-oesophageal reflux (GORD) are widespread and potentially coexisting diseases. Incidence and prevalence of concomitant asthma and GORD are highly variable among studies. This is mainly due to the heterogeneity of study designs. To explain a potential link, it has been proposed some pathophysiological anomaly such as the altered pressure gradient between thorax and abdomen, the parasympathethic reflex, the hightened bronchial reactivity and chemical effects of microaspired gastric juice. An accurate diagnosis of asthma and GORD are pivotal in order to lead effective treatment and to reach a significant positive outcome, in terms of quality of life and respiratory function amelioration...
April 4, 2017: Minerva Medica
https://www.readbyqxmd.com/read/28364225/comparison-of-ambient-and-atmospheric-pressure-ion-sources-for-cystic-fibrosis-exhaled-breath-condensate-ion-mobility-mass-spectrometry-metabolomics
#20
Xiaoling Zang, José J Pérez, Christina M Jones, María Eugenia Monge, Nael A McCarty, Arlene A Stecenko, Facundo M Fernández
Cystic fibrosis (CF) is an autosomal recessive disorder caused by mutations in the gene that encodes the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The vast majority of the mortality is due to progressive lung disease. Targeted and untargeted CF breath metabolomics investigations via exhaled breath condensate (EBC) analyses have the potential to expose metabolic alterations associated with CF pathology and aid in assessing the effectiveness of CF therapies. Here, transmission-mode direct analysis in real time traveling wave ion mobility spectrometry time-of-flight mass spectrometry (TM-DART-TWIMS-TOF MS) was tested as a high-throughput alternative to conventional direct infusion (DI) electrospray ionization (ESI) and atmospheric pressure chemical ionization (APCI) methods, and a critical comparison of the three ionization methods was conducted...
March 31, 2017: Journal of the American Society for Mass Spectrometry
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