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> Procedures > Therapeutic or Preventive Procedure > Bronchoalveolar Lavage

Bronchoalveolar Lavage

Bronchoalveolar Lavage: A diagnostic procedure where a saline solution is instilled into a segment of the lung and then aspirated for analysis.
This technique allows for the collection and examination of cells, proteins, and other substances from the lower respiratory tract.
It is commonly used to assess lung infections, inflammation, and other pulmonary conditions.
PubCompare.ai can help optimize your Bronchoalveolar Lavage research by locating the most effective protocols from published literature, preprints, and patents using AI-driven comparisons.
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Most cited protocols related to «Bronchoalveolar Lavage»

1
CT Imaging of COVID-19 Patients in China
Cited 75 times
Our institutional review board waived the requirement to obtain written informed consent for this retrospective case series, which evaluated de-identified data and involved no potential risk to patients. To avert any potential breach of confidentiality, no link between the patients and the researchers was made available.
From January 18, 2020, until January 27, 2020, 21 patients admitted to three hospitals in three provinces in China with confirmed 2019-nCoV underwent chest CT. Ten patients were from Zhuhai (Guangdong Province) and were imaged with 1-mm-thick slices with a UCT 760 scanner (United Imaging, Shanghai, China). Nine patients were from Nanchang (Jiangxi Province) and were imaged with 8-mm-thick slices with an Emotion 16 scanner (Siemens Healthineers, Erlangen, Germany). Two patients were from Qingdao (Shandong Province) and were imaged with 5-mm-thick slices, one with a BrightSpeed scanner (GE Medical Systems, Milwaukee, Wis) and one with an Aquilion ONE scanner (Toshiba Medical Systems, Tokyo, Japan). All scans were obtained with the patient in the supine position during end-inspiration without intravenous contrast material. All patients were positive for 2019-nCov at laboratory testing of respiratory secretions obtained by means of bronchoalveolar lavage, endotracheal aspirate, nasopharyngeal swab, or oropharyngeal swab.
Patient selection for this study was consecutive in each of the three institutions, and no exclusion criteria were applied (Table 1). In addition to age and sex, clinical information collected included severity and time course of symptoms as well as travel and exposure history.
Chung M., Bernheim A., Mei X., Zhang N., Huang M., Zeng X., Cui J., Xu W., Yang Y., Fayad Z.A., Jacobi A., Li K., Li S, & Shan H. (2020). CT Imaging Features of 2019 Novel Coronavirus (2019-nCoV). Radiology.
Publication 2020
Bronchoalveolar Lavage Chest Contrast Media Emotions Ethics Committees, Research Inhalation Nasopharynx Oropharynxs Patients Radionuclide Imaging Respiratory Rate SARS-CoV-2 Secretions, Bodily
2
RSV Detection in Pediatric Respiratory Specimens
Cited 21 times

Protocol full text hidden due to copyright restrictions

Open the protocol to access the free full text link

Publication 2004
Bronchoalveolar Lavage Males Nose Patients Real-Time Polymerase Chain Reaction Respiratory Rate Trachea Virus Woman
3
Mitochondrial Damage and Lung Inflammation
Cited 19 times
Male Sprague-Dawley rats were given intravenous MTD based on weight 30 (link). qPCR of plasma showed mtDNA levels of 122±22 ng/ml 1h after injection (nl≪1ng/ml). Leukocytes in bronchoalveolar lavages were counted visually. Lungs were inflated gently and formalin fixed prior to stain with H&E or for 4-HNE.
Zhang Q., Raoof M., Chen Y., Sumi Y., Sursal T., Junger W., Brohi K., Itagaki K, & Hauser C.J. (2010). Circulating Mitochondrial DAMPs Cause Inflammatory Responses to Injury. Nature, 464(7285), 104-107.
Publication 2009
Bronchoalveolar Lavage DNA, Mitochondrial Formalin Leukocytes Lung Males Plasma Rats, Sprague-Dawley Stains
4
Mucinous Airway Defects in Mice
Cited 15 times
Mice were used with Institutional Animal Care and Use Committee approvals. Muc5ac−/− mice were generated previously16 (link). Muc5b−/− and Muc5bTg mice were generated here. Muc5b protein was assessed immunohistochemically using rabbit polyclonal antisera. Ciliary beat, MCC, and transport were assessed as described previously. Lung function was measured using a head-out plethysmograph and a flexiVent (Scireq, Montreal, Quebec, Canada), and blood oxygen was assessed using a pulse oximeter. Otitis media was assessed by visual otoscopy and middle ear lavage (MEL). Pulmonary inflammation was assessed by histology and lung lavage. Lavaged leukocytes were identified by light microscopy and flow cytometry. Neutrophils, macrophages, MHC-II, and apoptotic cells, were detected using commercially available Ab’S and reagents. S. aureus was administered by 10 μl intranasal or 50 μl intratracheal inocula at 107-108 CFU/animal. Bacteria and bacterial DNA were isolated from MEL, lung homogenates, and lung lavage pellets. Isolated colonies were phylotyped by 16S rRNA and mecA sequencing. Kaplan-Meier (1f and 3h, l), regression (1e and 2f), one-sided t-test (1g-i, k, l; 2b-e, g; 3b, c, f, g, j, k, and 4c, d, f, g, i, j), and one-way ANOVA (3i and 4a, h, j, l) with appropriate corrections for multiple comparisons, unequal variances, and non-Gaussian distribution were carried out using GraphPad Prism v5.04 (GraphPad Software, Inc., La Jolla, CA). Full methods are found in Supplementary Information.
Roy M.G., Livraghi-Butrico A., Fletcher A.A., McElwee M.M., Evans S.E., Boerner R.M., Alexander S.N., Bellinghausen L.K., Song A.S., Petrova Y.M., Tuvim M.J., Adachi R., Romo I., Bordt A.S., Gabriela Bowden M., Sisson J.H., Woodruff P.G., Thornton D.J., Rousseau K., De la Garza M.M., Moghaddam S.J., Karmouty-Quintana H., Blackburn M.R., Drouin S.M., William Davis C., Terrell K.A., Grubb B.R., O’Neal W.K., Flores S.C., Cota-Gomez A., Lozupone C.A., Donnelly J.M., Watson A.M., Hennessy C.E., Keith R.C., Yang I.V., Barthel L., Henson P.M., Janssen W.J., Schwartz D.A., Boucher R.C., Dickey B.F, & Evans C.M. (2013). Muc5b Is Required for Airway Defense. Nature, 505(7483), 412-416.
Publication 2013
5'-N-methylcarboxamideadenosine Animals Apoptosis Bacteria Blood Bronchoalveolar Lavage Cells DNA, Bacterial Eyelashes Flow Cytometry Head Immune Sera Institutional Animal Care and Use Committees Leukocytes Light Microscopy Lung Macrophage Middle Ear MUC5AC protein, human MUC5B protein, human Mus neuro-oncological ventral antigen 2, human Neutrophil Otitis Media Otoscopy Oxygen Pellets, Drug Plethysmography Pneumonia prisma Proteins Pulse Rate Rabbits Respiratory Physiology RNA, Ribosomal, 16S Staphylococcus aureus
5
Influenza Surveillance Protocols
Cited 15 times
The clinical samples were taken from patients presenting with influenza-like illness who gave verbal consent for virological examination. Samples were sent to the National Reference Center for Influenza at the Robert Koch Institute (Berlin, Germany) for influenzavirus surveillance purposes in Germany. Consequently, ethic committee approval was not required since such a sentinel surveillance is covered by German legislation (Infektionsschutzgesetz §§13, 14). Since 2007, approximately 16000 nasal and/or throat swabs (and other materials like throat and nasal washings, bronchoalveolar lavages etc.) have been collected.
Schulze M., Nitsche A., Schweiger B, & Biere B. (2010). Diagnostic Approach for the Differentiation of the Pandemic Influenza A(H1N1)v Virus from Recent Human Influenza Viruses by Real-Time PCR. PLoS ONE, 5(4), e9966.
Full text: Click here
Publication 2010
Bronchoalveolar Lavage Ethics Committees Nasal Lavage Fluid Nose Orthomyxoviridae Patients Pharynx Virus Vaccine, Influenza

Most recents protocols related to «Bronchoalveolar Lavage»

1
Quantifying Mucosal and Systemic Immunoglobulin Levels
To measure serum IgA and IgG levels in experimental animals, blood specimens from
experimental mice were collected from infraorbital veins using capillary tubes
on day 7 or 21 after the first oral administration of each strain of LAB. To
obtain serum samples, each blood sample was incubated on ice for 1 h and
centrifuged at 8,000×g for 10 min. Each serum sample was then diluted
1:100 with PBS for measuring IgA and IgG levels (Choi et al., 2017 (link)). Sandwich ELISA kits were used to measure total
serum IgA (Cat # 88-50450-22, Thermo Fisher Scientific) and IgG (Cat #
88-50400-22, Thermo Fisher Scientific) levels according to the
manufacturer’s instructions.
To measure BALT IgA, bronchoalveolar lavage was performed with 2 mL PBS after
exposing the tracheae of sacrificed mice. Bronchoalveolar lavage fluids were
then centrifuged at 800×g for 5 min at 4°C (Choi et al., 2018 (link)). Levels of IgA in bronchoalveolar lavage
fluids were quantitated using sandwich ELISA kits (Cat # 88-50450-22, Thermo
Fisher Scientific).
To measure GALT IgA, LPCs from Peyer’s patches were isolated from the
small intestine of each sacrificed mouse according to previously established
method (Kikuchi et al., 2014 (link)). Isolated
LPCs (2.5×105 cells/well) were then mixed with each
heat-killed LAB (5×106 CFU/mL) and seeded into 96-well plates
in 200 μL of RPMI 1640 medium supplemented with 10% (v/v) FBS and 1%
penicillin/streptomycin. After 2 days of incubation, culture supernatants of
each sample were harvested and sandwich ELISAs were performed to detect IgA
levels using ELISA kit (Cat # 88-50450-22, Thermo Fisher Scientific).
Choi C.Y., Lee C.H., Yang J., Kang S.J., Park I.B., Park S.W., Lee N.Y., Hwang H.B., Yun H.S, & Chun T. (2023). Efficacies of Potential Probiotic Candidates Isolated from Traditional Fermented Korean Foods in Stimulating Immunoglobulin A Secretion. Food Science of Animal Resources, 43(2), 346-358.
Publication 2023
Administration, Oral Animals, Laboratory BLOOD Bronchoalveolar Lavage Bronchoalveolar Lavage Fluid Capillaries Cells Enzyme-Linked Immunosorbent Assay G-800 Intestines Mus Penicillins Peyer Patches Serum Strains Streptomycin Trachea Veins
2
Marmoset Model of Mycobacterium Intracellulare
The seven adult marmosets were inoculated endobronchially at the level of the main carina using a special narrow diameter bronchoscope with one mL of a 108 CFU/mL M. intracellulare obtained from the Mycobacteria/Nocardia Research Laboratory at the UTHSCT. All procedures (bronchoscopy, blood draws and euthanasia) were conducted under ketamine anesthesia with the additional use of isoflurane anesthesia with bronchoscopy and bronchoalveolar lavage (BAL) in the presence of veterinary staff. Each animal underwent assessment of serum chemistry, and complete blood count prior to inoculation and on the day of euthanasia. Because there are no previous comparable studies with this primate, we sacrificed a group of animals at 30 days and another group at 60 days to optimize the chance of recovering M. intracelluare as well as to define the time course of an evolving inflammatory response. Cytokine analysis was obtained prior to inoculation with M. intracellualre and on a weekly basis from day 0 to day 30 for all animals and again on day 60 for the animals sacrificed at day 60. All the animals had BAL performed prior to euthanasia at either 30- or 60-days post-inoculation. The animals were then taken directly to necropsy by a primate pathologist.
Peters J., Maselli D.J., Mangat M., Coalson J.J., Hinojosa C., Giavedoni L., Brown-Elliott B.A., Chan E, & Griffith D. (2023). A marmoset model for Mycobacterium avium complex pulmonary disease. PLOS ONE, 18(3), e0260563.
Full text: Click here
Publication 2023
Adult Anesthesia Animals Autopsy Bronchoalveolar Lavage Bronchoscopes Bronchoscopy Callithrix Complete Blood Count Cytokine Euthanasia Inflammation Isoflurane Ketamine Mycobacterium Myeloid Progenitor Cells Nocardia Pathologists Phlebotomy Primates Serum Vaccination
3
Pristane-Induced Lung Inflammation Model
Mice were divided into three groups: control (n = 30), model (n = 30), and Nec-1 (n = 30). When all mice were up to at least 8 weeks of age, the modelling was initiated. Mice in the control group were daily administered 0.1 mL PBS (Thermo Fisher, USA, Cat No. 10010023) intraperitoneally. Mice in the model group were administered 0.8 mL pristane (Sigma-Aldrich, USA, Cat No. P2870) intraperitoneally only on the first day and subsequently administered 0.1 mL PBS intraperitoneally every day until their sacrifice [10 (link), 16 (link)]. Mice in the Nec-1 group received an intraperitoneal injection of 0.8 mL pristane only on the first day. Then, 0.1 mL Nec-1 (ENZO, USA, Cat No. BML-AP309) at a dose of 6 mg/kg was administered daily until their sacrifice [15 (link)]. Nec-1 was diluted with PBS before administration. Every mouse's intraperitoneal injection of PBS and Nec-1 was completed within 1 min.
The body weights of mice were recorded every other day until the day before their sacrifice. All mice were anaesthetized, and their orbital blood was obtained and centrifuged at 4°C, 2000 rpm for 10 min to obtain the supernatant, which was stored at -80°C. Next, the thoracic cavities of the mice were surgically opened, and the lungs were carefully extracted and rinsed in precooled PBS. Mice lungs, which did not undergo operations, were lavaged thrice with precooled PBS (0.2 mL). The bronchoalveolar lavage (BAL) was centrifuged at 4°C at 2000 rpm for 5 min, and the supernatants were stored at -80°C. It should be noted that the internal structure of the lungs was destroyed after obtaining the BAL and hence could not be used for further experiments. The lung samples used for making sections were soaked in 4% paraformaldehyde or O.C.T. compound (Sakura, USA, Cat No.4583). Lungs soaked in O.C.T. compound were frozen at -20°C. The remaining lung samples were used to determine the wet/dry weight ratio.
Han X., Zhang X., Song R., Li S., Zou S., Tan Q., Liu T., Luo S., Wu Z., Jie H, & Wang J. (2023). Necrostatin-1 Alleviates Diffuse Pulmonary Haemorrhage by Preventing the Release of NETs via Inhibiting NE/GSDMD Activation in Murine Lupus. Journal of Immunology Research, 2023, 4743975.
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Publication 2023
BLOOD Bronchoalveolar Lavage Freezing Injections, Intraperitoneal Lung Mus Operative Surgical Procedures paraform PCSK1 protein, human pristane Thoracic Cavity
4
Isolation and Molecular Characterization of S. aureus and P. aeruginosa
The Centers for Disease Control followed inclusion guidelines in this study (Horan et al., 2008 (link)). The isolates were obtained from individuals of varying ages and genders and were not duplicated; just one sample per patient was collected. In this regard, 30 S. aureus isolates were obtained from the wound (n = 8), blood (n = 11), urine (n = 6), as well as sputum (n = 5) and further characterized and confirmed using biochemical tests like colony morphology, gram-positive, clustered-shaped cocci, catalase, mannitol, DNase, and coagulase (Murray et al., 1995 ). In addition, 20 clinical P. aeruginosa were collected from respiratory tracts retrieved from sputum (n = 6), bronchoalveolar lavage (8), and endotracheal aspirates (n = 6) patients hospitalized in the intensive care unit (ICU) wards and then confirmed on selective media via conventional phenotypical tests such as colony morphology, oxidase, catalase, motility, citrate, indole synthesis, methyl red, and voges-proskauer. Finally, molecular confirmation of S. aureus and P. aeruginosa isolates was done by the polymerase chain reaction (PCR) via previously described primers (Atshan et al., 2012 (link); Abdelraheem et al., 2020 (link)). Besides, S. aureus ATCC 25923, S. aureus ATCC 29213, and P. aeruginosa PAO1 were provided by the Pasteur Institute of Iran.
Mirzaei R., Esmaeili Gouvarchin Ghaleh H, & Ranjbar R. (2023). Antibiofilm effect of melittin alone and in combination with conventional antibiotics toward strong biofilm of MDR-MRSA and -Pseudomonas aeruginosa. Frontiers in Microbiology, 14, 1030401.
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Publication 2023
Anabolism Blood Bronchoalveolar Lavage Catalase Citrates Coagulase Deoxyribonucleases Gender indole Mannitol Motility, Cell Oligonucleotide Primers Oxidases Patients Polymerase Chain Reaction Pseudomonas aeruginosa Respiratory System Sputum Staphylococcus aureus Urine Wounds
5
Chitin Oligomer Innate Immune Response
Custom-sized purified chitin particles were obtained from Elicityl, ranging from chitinbiose to chitinhexaose [10 mg]. Chitin oligomer (C10-15) was generated as described previously [12 (link)]. Purified chitin particle suspensions were delivered by involuntary aspiration to isoflurane-anesthetized mice. To assess size dependent innate immune responses to purified chitin particles, mice were sacrificed 6 hours post challenge. Suspensions of 5 x 107 conidia were delivered by a single involuntary aspiration. Mice were sacrificed 24 hours post-challenge with sodium pentobarbitol as described previously [17 (link)], and lungs were perfused with 10ml phosphate buffered saline (PBS) for quantitative RT-PCR (qRT-PCR) assay. Bronchoalveolar lavage was performed to collect samples to assay immune cell composition by flow cytometry. All animal procedures were approved by the Animal Care and Use Committee of Indiana State University, the host campus of IUSM-Terre Haute. All animal handling and experimental procedures were performed in accordance with the recommendations found in the Guide for the Care and Use of Laboratory Animals of the National Institutes of Health. This study was carried out in accordance with the recommendations of the PHS Policy on Humane Care and Use of Laboratory Animals. The protocol was approved by the Indiana State University Animal Care and Use Committee, the host campus of IUSM-Terre Haute. IUSM- Biosafety committee approved of the use of human cell line (approval number: SM-847-06). Indiana State University IACUC committee approved of the use of murine studies (approval number: 1507790).
Bhattacharya S., Maupin A.J., Schlosser A.G., Füchtbauer E.M., Gloria Y.C., Weber A.N., Holmskov U., Moeller J.B, & Templeton S.P. (2023). The role of FIBCD1 in response to Aspergillus fumigatus in lung epithelial cells. PLOS ONE, 18(3), e0282347.
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Publication 2023
Animals Animals, Laboratory Biological Assay Bronchoalveolar Lavage Cell Lines Cells Chitin Conidia Flow Cytometry Homo sapiens Immunity, Innate Institutional Animal Care and Use Committees Isoflurane Lung Mus Phosphates Reverse Transcriptase Polymerase Chain Reaction Saline Solution Sodium

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More about "Bronchoalveolar Lavage"

Bronchoalveolar lavage (BAL) is a diagnostic procedure used to collect and analyze cells, proteins, and other substances from the lower respiratory tract.
This technique involves instilling a saline solution into a segment of the lung and then aspirating it for examination.
BAL is commonly employed to assess various pulmonary conditions, such as lung infections, inflammation, and other respiratory disorders.
The collected BAL fluid can be further analyzed using various techniques, including cell counts, cytology, and molecular analyses.
These analyses may involve the use of cell culture media like RPMI 1640, as well as reagents like FBS, penicillin/streptomycin, and ELISA kits.
The presence of specific markers, such as cytokines or immunoglobulins, can provide valuable insights into the underlying pathology.
For instance, BAL can be used to detect the presence of infectious agents, such as bacteria, viruses, or fungi, which may be causing respiratory infections.
Additionally, it can help assess the degree of lung inflammation by measuring the levels of inflammatory mediators, like those found in lipopolysaccharide (LPS) or ovalbumin (OVA) models.
PubCompare.ai can assist researchers in optimizing their BAL research by providing AI-driven comparisons of protocols from published literature, preprints, and patents.
This platform can help identify the most effective techniques, streamlining the research process and leading to more efficient and productive investigations.
Expereinces more efficient research today with PubCompare.ai's intuitive platform.