scholarly journals Respiratory metabolites in bronchoalveolar lavage fluid (BALF) and exhaled breath condensate (EBC) can differentiate horses affected by severe equine asthma from healthy horses

2020 ◽  
Vol 16 (1) ◽  
Author(s):  
Marilena Bazzano ◽  
Luca Laghi ◽  
Chenglin Zhu ◽  
Gian Enrico Magi ◽  
Beniamino Tesei ◽  
...  
2012 ◽  
Vol 32 (5) ◽  
pp. 329-335 ◽  
Author(s):  
Maciej Ciebiada ◽  
Paweł Górski ◽  
Adam Antczak

Although eicosanoids are involved in lung carcinogenesis they were poorly investigated in exhaled breath condensate (EBC) and bronchoalveolar lavage fluid (BALf) in patients with primary lung cancer. In this study 17 patients with diagnosed non-small cell lung cancer, 10 healthy smokers and 12 healthy nonsmokers were included. The levels of cys-LTs, 8-isoprostane, LTB4 and PGE2 were measured before any treatment in the EBC of all patients and in BALf of patients with lung cancer by enzyme linked immunosorbent assay. 8-isoprostane, LTB4, cys-LTs and PGE2 were detectable in the EBC and BALf. There were no significant differences between healthy smokers and nonsmokers in concentrations of all measured mediators. Compared with both healthy controls, patients with diagnosed lung cancer displayed higher concentrations of cys-LTs (p< 0.05) and LTB4 (p< 0.05) in EBC. In patients with lung cancer, the mean concentrations of all measured mediators were significantly higher in BALf compared with EBC and there was a significant, positive correlation between concentration of cys-LTs, LTB4and 8-isoprostane in BALf and their concentrations in the EBC (r= 0.64,p< 0.05,r= 0.59,p< 0.05,r= 0.53,p< 0.05 respectively). Since cys-LT, LTB4 and 8-isoprostane concentrations in EBC from patients with lung cancer reflect their concentrations in BALf, they may serve as a possible non-invasive method to monitor the disease and to assess the effectiveness of therapy.


2011 ◽  
Vol 30 (5) ◽  
pp. 213-220 ◽  
Author(s):  
Adam Antczak ◽  
Wojciech Piotrowski ◽  
Jerzy Marczak ◽  
Maciej Ciebiada ◽  
Pawel Gorski ◽  
...  

Exhaled breath condensate (EBC) has been increasingly used as a new and non-invasive method to study airway inflammation. In this study we have compared the concentrations of lipid mediators in EBCwith concentrations in bronchoalveolar lavage fluid (BALF).We included 37 patients undergoing bronchoscopy (12 sarcoidosis, 12 COPD, 6 lung cancer, 5 chronic cough, 1 Wegener’s granulomatosis, 1 sclerodermia). Patients were not allowed to have exacerbation or any change in concomitant medication for at least 4 weeks prior to the study. In all patients, EBC was collected immediately prior to the bronchoscopy.The levels of cys-LTs, LTB4, 8-isoprostane were significantly higher in BALF compared to EBC (p < 0.0001, p < 0.001, p < 0.0001 for cys-LTs, LTB4, 8-isoprostane respectively). Moreover, there was a strong positive correlation between both leukotriene B4and 8-isoprostane in BALF and EBC (r= 0.53 andr= 0.79, p < 0.01, respectively) in patients with sarcoidosis and COPD but there was no correlation between eicosanoids BALF and EBC in patients with chronic cough and lung cancer.This is the first study to compare EBC and BALF in different lung diseases which demonstrated significant correlations between the levels of eicosanoids in BALF and EBCin patientswith COPD and sarcoidosis. EBC may be useful inmeasuring inflammation in several inflammatory lung diseases.


2020 ◽  
Author(s):  
Mohit Ojha ◽  
Rashika Joshi ◽  
Brian Michael Varisco

Abstract Objective We sought to analyze the quality of proteins extracted from the humidified moisture exchange filter (HMEF) of pediatric acute respiratory distress syndrome (PARDS) patients undergoing invasive mechanical ventilation.Results Proteins were extracted from ten filters from one control and six PARDS subjects. Between 0.69-1.69 mg of protein was extracted from each. Silver stain of these extracts identified only one discrete band compared to many discrete bands in mouse BALF. Liquid chromatography- mass spectrometry of this band and a corresponding band in mouse bronchoalveolar lavage fluid identified them as human and mouse albumin respectively. Multiple other non-degraded proteins were obvious in mouse bronchoalveolar lavage fluid but not proteins extracted from HMEFs.


2020 ◽  
Vol 220 ◽  
pp. 109976 ◽  
Author(s):  
Sanni Hansen ◽  
Nina D. Otten ◽  
Karin Birch ◽  
Kerstin Skovgaard ◽  
Charlotte Hopster-Iversen ◽  
...  

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