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Bronchoalveolar lavage

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https://www.readbyqxmd.com/read/29166670/age-related-differences-in-the-respiratory-microbiota-of-chickens
#1
Laura Glendinning, Gerry McLachlan, Lonneke Vervelde
In this era of next generation sequencing technologies it is now possible to characterise the chicken respiratory microbiota without the biases inherent to traditional culturing techniques. However, little research has been performed in this area. In this study we characterise and compare buccal, nasal and lung microbiota samples from chickens in three different age groups using 16S rRNA gene analysis. Buccal and nasal swabs were taken from birds aged 2 days (n = 5), 3 weeks (n = 5) and 30 months (n = 6). Bronchoalveolar lavage (BAL) samples were also collected alongside reagent only controls...
2017: PloS One
https://www.readbyqxmd.com/read/29165430/subcutaneous-administration-of-infliximab-attenuated-silica-induced-lung-fibrosis
#2
Hua Zhang, Jun-Na Sui, Lei Gao, Jian Guo
OBJECTIVES: To investigate the influence of the anti-tumor necrosis factor-α infliximab (IFX) in the case of rats with silicosis. MATERIAL AND METHODS: Forty-eight Wistar rats were randomly divided into 3 groups. The study group (N = 16) - silicosis was induced by intratracheal instillation of 50 mg silica on day 1, and IFX was subcutaneously administered at a dose of 15 mg/kg of body weight from day 2 to day 6, the vehicle group (N = 16) - silica used as the study group but without IFX, the sham group (N = 16) - 1 ml of saline was intratracheal-used...
November 21, 2017: International Journal of Occupational Medicine and Environmental Health
https://www.readbyqxmd.com/read/29165057/pulmonary-toxicity-and-global-gene-expression-changes-in-response-to-sub-chronic-inhalation-exposure-to-crystalline-silica-in-rats
#3
Christina Umbright, Rajendran Sellamuthu, Jenny R Roberts, Shih-Houng Young, Diana Richardson, Diane Schwegler-Berry, Walter McKinney, Bean Chen, Ja Kook Gu, Michael Kashon, Pius Joseph
Exposure to crystalline silica results in serious adverse health effects, most notably, silicosis. An understanding of the mechanism(s) underlying silica-induced pulmonary toxicity is critical for the intervention and/or prevention of its adverse health effects. Rats were exposed by inhalation to crystalline silica at a concentration of 15 mg/m(3), 6 hr/day, 5 days/week for 3, 6 or 12 weeks. Pulmonary toxicity and global gene expression profiles were determined in lungs at the end of each exposure period...
2017: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/29163998/multifocal-pulmonary-granular-cell-tumor-presenting-with-postobstructive-pneumonia
#4
Samid M Farooqui, Muhammad S Khan, Laura Adhikari, Viral Doshi
Granular cell tumor (GCT) is a neoplasm of Schwann cell origin. Its presence in the aerodigestive tract is uncommon and becomes a diagnostic challenge on initial presentation. Our case is of a 59-year-old woman who presented to the emergency department with a history of productive cough and dyspnea associated with fever and chest pain. An initial chest X-ray (CXR) showed a right middle lobe consolidation with follow-up Computed Tomography (CT) scan showing a mass in the right bronchus. Bronchoscopy revealed a polypoid, sessile granular mass in the right bronchus intermedius with multiple white lesions in trachea, left main bronchus, and right upper bronchi...
2017: Case Reports in Pulmonology
https://www.readbyqxmd.com/read/29162668/huai-qi-huang-corrects-the-balance-of-th1-th2-and-treg-th17-in-an-ovalbumin-induced-asthma-mouse-model
#5
Peng Liang, Shao Peng, Man Zhang, Yingying Ma, Xinggang Zhen, Huijuan Li
This study is designed to determine whether Huai Qi Huang has immuno-regulatory effects on the Th1/Th2 and Treg/Th17 balance in ovalbumin (OVA)-induced asthma model mice. Asthma model mice were constructed by OVA treatment and Huai Qi Huang was administrated. The amount of migrated inflammatory cells in the bronchoalveolar lavage fluid (BALF) from the OVA mice was counted. The total immunoglobulin E (IgE) in the sera was detected by the IgE ELISA kit. Cell suspensions from the lung were stained with antibodies specific for CD4 and the master transcription factors for Th1 (T-bet), Th2 (Gata-3), Th17 (RORγt), and Treg (Foxp3)...
November 21, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/29161746/exercise-performed-concomitantly-with-particulate-matter-exposure-inhibits-lung-injury
#6
Adriano Silva-Renno, Guilherme Crisitanini Baldivia, Manoel C Oliveira-Junior, Maysa Alves Rodrigues Brandao-Rangel, Elias El-Mafarjeh, Marisa Dolhnikoff, Thaís Mauad, Jôse Mára Britto, Paulo Hilário Nascimento Saldiva, Luis Vicente Franco Oliveira, Ana P Ligeiro-Oliveira, Gustavo Silveira Graudenz, Rodolfo Paula Vieira
Air pollution is a growing problem worldwide, inducing and exacerbating several diseases. Among the several components of air pollutants, particulate matter (PM), especially thick (10-2.5 µm; PM 10) and thin (≤2.5 µm; PM 2.5), are breathable particles that easily can be deposited within the lungs, resulting in pulmonary and systemic inflammation. Although physical activity is strongly recommended, its effects when practiced in polluted environments are questionable. Therefore, the present study evaluated the pulmonary and systemic response of concomitant treadmill training with PM 2...
November 21, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29161525/sea-cucumber-lipid-soluble-extra-fraction-prevents-ovalbumin-induced-allergic-airway-inflammation
#7
Da-In Lee, Shin Ae Kang, Anisuzzaman Md, U-Cheol Jeong, Feng Jin, Seok-Joong Kang, Jeong-Yeol Lee, Hak Sun Yu
In a previous study, our research group demonstrated that sea cucumber (Apostichopus japonicus) extracts ameliorated allergic airway inflammation through CD4(+)CD25(+)Foxp3(+) T (regulatory T; Treg) cell activation and recruitment to the lung. In this study, we aimed to determine which components of sea cucumber contribute to the amelioration of airway inflammation. We used n-hexane fractionation to separate sea cucumber into three phases (n-hexane, alcohol, and solid) and evaluated the ability of each phase to elevate Il10 expression in splenocytes and ameliorate symptoms in mice with ovalbumin (OVA)/alum-induced asthma...
November 21, 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/29161088/mechanistic-basis-for-obesity-related-increases-in-ozone-induced-airway-hyperresponsiveness-in-mice
#8
Stephanie A Shore
Obesity is a risk factor for asthma, especially nonallergic asthma. Ozone, a common air pollutant, is a nonallergic asthma trigger. Importantly, ozone-induced decrements in lung function are greater in obese and overweight human subjects than in lean individuals. Obese mice also exhibit exaggerated pulmonary responses to ozone. Ozone causes greater increases in pulmonary resistance, in bronchoalveolar lavage neutrophils, and in airway hyperresponsiveness in obese than in lean mice. Our data indicate that IL-33 plays a role in mediating these events...
November 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29160801/the-protective-effects-of-astaxanthin-on-the-ova-induced-asthma-mice-model
#9
Yun-Ho Hwang, Seong-Gyeol Hong, Seul-Ki Mun, Su-Jin Kim, Sung-Ju Lee, Jong-Jin Kim, Kyung-Yun Kang, Sung-Tae Yee
Although astaxanthin has a variety of biological activities such as anti-oxidant effects, inhibitory effects on skin deterioration and anti-inflammatory effects, its effect on asthma has not been studied. In this paper, the inhibitory effect of astaxanthin on airway inflammation in a mouse model of ovalbumin (OVA)-induced asthma was investigated. We evaluated the number of total cells, Th1/2 mediated inflammatory cytokines in bronchoalveolar lavage fluid (BALF) and airway hyperresponsiveness as well as histological structure...
November 21, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29160418/vitamin-d3-levels-and-nlrp3-expression-in-murine-models-of-obese-asthma-association-with-asthma-outcomes
#10
J-H Zhang, Y-P Chen, X Yang, C-Q Li
Vitamin D (25(OH)D3) is an essential nutrient that plays a role in the immune system. Serum 25(OH)D3 is found to be associated with asthma. However, the role of vitamin D in obese asthma remains unclear. Therefore, we investigated the association between vitamin D levels and asthma outcomes in a murine model of obese asthma. We also evaluated NLRP3 inflammasome activity in the pathogenesis of obese asthma. We divided 20 male Balb/c mice (3-4 weeks old) into 4 groups: normal control, asthma, obese, and obese asthma and developed an obese asthma mouse model...
November 13, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/29160134/surfactant-protein-a-nanobody-conjugated-liposomes-loaded-with-methylprednisolone-increase-lung-targeting-specificity-and-therapeutic-effect-for-acute-lung-injury
#11
Nan Li, Dong Weng, Shan-Mei Wang, Yuan Zhang, Shan-Shan Chen, Zhao-Fang Yin, Jiali Zhai, Judy Scoble, Charlotte C Williams, Tao Chen, Hui Qiu, Qin Wu, Meng-Meng Zhao, Li-Qin Lu, Xavier Mulet, Hui-Ping Li
The advent of nanomedicine requires novel delivery vehicles to actively target their site of action. Here, we demonstrate the development of lung-targeting drug-loaded liposomes and their efficacy, specificity and safety. Our study focuses on glucocorticoids methylprednisolone (MPS), a commonly used drug to treat lung injuries. The steroidal molecule was loaded into functionalized nano-sterically stabilized unilamellar liposomes (NSSLs). Targeting functionality was performed through conjugation of surfactant protein A (SPANb) nanobodies to form MPS-NSSLs-SPANb...
November 2017: Drug Delivery
https://www.readbyqxmd.com/read/29159034/hamman-rich-syndrome
#12
Arshiya Mastan, Nilaani Murugesu, Adil Hasnain, Terry O'Shaughnessy, Vladimir Macavei
INTRODUCTION: Acute interstitial pneumonia is a rare but important diagnosis, associated with a high mortality rate and important to identify early. CASE PRESENTATION: A 76 year-old individual presented to hospital with a two-week history of shortness of breath, fevers and a non-productive cough. Treatment initially was for lower respiratory tract infection but returned to hospital three days later as her shortness of breath and peripheral oedema was worsening despite diuretic treatment...
2018: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/29158156/anti-allergic-effects-of-sesquiterpene-lactones-from-saussurea-costus-falc-lipsch-determined-using-in-vivo-and-in-vitro-experiments
#13
Bo-Kyung Lee, Soo-Jin Park, So-Yeon Nam, Saeromi Kang, Jin Hwang, Seung-Jin Lee, Dong-Soon Im
ETHNOPHARMACOLOGICAL RELEVANCE: Saussurea costus (Falc.) Lipsch. root has been used in Asian traditional medicine for the treatment of asthma, rheumatism, and other conditions. S. costus extracts were shown to alleviate house dust mite-induced atopic-like dermatitis in Nc/Nga mice; besides, sesquiterpene lactones were isolated from S. costus extracts. AIMS OF THE STUDY: We aimed to investigate the effects of sesquiterpene lactones (alantolactone, costunolide, and dehydrocostuslactone) in allergic asthma using female Balb/c mice and rat RBL-2H3 mast cells...
November 17, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29157921/pooling-of-bronchoalveolar-lavage-in-children-with-cystic-fibrosis-does-not-adversely-affect-the-microbiological-yield-or-sensitivity-in-detecting-pulmonary-inflammation
#14
Paul McNally, Jennifer O'Rourke, Emmanuelle Fantino, Archana Chacko, Rishi Pabary, Andrew Turnbull, Tim Grant, Niamh O'Sullivan, Claire Wainwright, Barry Linnane, Jane C Davies, Peter D Sly
BACKGROUND: Bronchoalveolar lavage (BAL) is a potentially useful outcome measure for clinical trials in children with CF but its use is limited by variations in approach internationally. We sought to determine if pooling adversely affected the diagnostic properties of BAL. METHODS: Children undergoing bronchoscopy for clinical reasons were included. A multi-step study protocol ensured BAL was collected and analysed both separately and as a pooled fluid. RESULTS: Eighty-five children (53 CF, 32 control) were recruited...
November 17, 2017: Journal of Cystic Fibrosis: Official Journal of the European Cystic Fibrosis Society
https://www.readbyqxmd.com/read/29156155/leukotriene-b4-indicates-lung-injury-and-on-going-inflammatory-changes-after-severe-trauma-in-a-porcine-long-term-model
#15
Philipp Störmann, Birgit Auner, Lukas Schimunek, Rafael Serve, Klemens Horst, Tim-P Simon, Roman Pfeifer, Kernt Köhler, Frank Hildebrand, Sebastian Wutzler, Hans-Christoph Pape, Ingo Marzi, Borna Relja
BACKGROUND: Recognizing patients at risk for pulmonary complications (PC) is of high clinical relevance. Migration of polymorphonuclear leukocytes (PMN) to inflammatory sites plays an important role in PC, and is tightly regulated by specific chemokines including interleukin (IL)-8 and other mediators such as leukotriene (LT)B4. Previously, we have reported that LTB4 indicated early patients at risk for PC after trauma. Here, the relevance of LTB4 to indicating lung integrity in a newly established long-term porcine severe trauma model (polytrauma, PT) was explored...
December 2017: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/29155126/treatment-strategy-by-lactoperoxidase-and-lactoferrin-combination-immunomodulatory-and-antibacterial-activity-against-multidrug-resistant-acinetobacter-baumannii
#16
Likaa Mahdi, Nada Mahdi, Sana'a Al-Kakei, Hadeel Musafer, Ikbal Al-Joofy, Rajwa Essa, Luma Zwain, Istabreq Salman, Haifa Mater, Shaymaa Al-Alak, Rasha Al-Oqaili
Lactoperoxidase (Lpo) and Lactoferrin (Lf) were extracted from camel colostrum milk and purified. The antibacterial activity of the two purified proteins was estimated against 14 isolates of multidrug resistance Acinetobacter baumannii. A combination of Lpo and Lf exhibited bactericidal action against A. baumannii in vitro. A mouse model of acute A. baumannii pneumonia was improved. The injection of combined Lpo and Lf after infection leads to significant clearance of A. baumannii rates in lung as well as blood culture P < 0...
November 15, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29155102/targeting-of-rac1-prevents-bronchoconstriction-and-airway-hyperresponsiveness
#17
Gwennan André-Grégoire, Florian Dilasser, Julie Chesné, Faouzi Braza, Antoine Magnan, Gervaise Loirand, Vincent Sauzeau
BACKGROUND: The molecular mechanisms responsible for airway smooth muscle cells (aSMC) contraction and proliferation in airway hyperresponsiveness (AHR) associated with asthma are still largely unknown. The small GTPases of the Rho family (RhoA, Rac1 and Cdc42) play a central role in SMC functions including migration, proliferation and contraction. OBJECTIVE: The objective of this study is to identify the role of Rac1 in aSMC contraction and to investigate its involvement in AHR associated with allergic asthma...
November 15, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29153416/frequency-of-detection-of-chlamydophila-pneumoniae-using-bronchoalveolar-lavage-fluid-in-patients-with-community-onset-pneumonia
#18
Shingo Noguchi, Kazuhiro Yatera, Toshinori Kawanami, Kazumasa Fukuda, Kei Yamasaki, Keisuke Naito, Kentaro Akata, Hiroshi Ishimoto, Hiroshi Mukae
BACKGROUND: Chlamydophila pneumoniae is a causative pathogen of lower respiratory tract infection, which generally infects healthy, young people. However, it is often difficult to evaluate acute C. pneumoniae infection using upper respiratory tract specimens and/or sputum samples due to its persistent infection or colonization. The interpretation of frequency of detection of C. pneumoniae seems to be insufficient in community-onset pneumonia. The aim of this study was to evaluate the presence of C...
November 2017: Respiratory Investigation
https://www.readbyqxmd.com/read/29153041/association-of-procalcitonin-values-and-bacterial-infections-in-pediatric-patients-receiving-extracorporeal-membrane-oxygenation
#19
Vi Ean Tan, Wayne S Moore, Arun Chopra, Jeffrey J Cies
OBJECTIVE: There is increasing data in pediatrics demonstrating procalcitonin (PCT) is more sensitive and specific than other biomarkers in the setting of bacterial infections. However, the use of PCT in neonatal and pediatric extracorporeal membrane oxygenation (ECMO) is not well described. Therefore, the purpose of this study was to describe the clinical utility of PCT in determining the absence or presence of bacterial infections in neonatal and pediatric patients on ECMO. METHODS: This was a retrospective electronic medical record (EMR) review of data between January 1, 2010 to June 30, 2016 at a single, free-standing, children 's hospital...
November 1, 2017: Perfusion
https://www.readbyqxmd.com/read/29151944/dna-methylation-analysis-of-the-shox2-and-rassf1a-panel-in-bronchoalveolar-lavage-fluid-for-lung-cancer-diagnosis
#20
Chenzi Zhang, Wenjun Yu, Lin Wang, Mingna Zhao, Qiaomei Guo, Shaogang Lv, Xiaomeng Hu, Jiatao Lou
Introduction: Currently the majority of lung cancer patients are diagnosed as advanced diseases for no sensitive and specific biomarkers exist, noninvasive biomarkers with high sensitivity and specificity are urgently needed in lung cancer diagnosis. Bronchoscopy is a standard procedure of the diagnostic work-up of patients with suspected lung cancer despite of the limited diagnostic accuracy. Besides, epigenetic changes through DNA methylation play an important role in tumorigenesis. Thus, we examined the aberrant methylation of the SHOX2 and RASSF1A in bronchoalveolar lavage fluid (BALF) in comparing with conventional cytology examination and serum CEA in order to evaluate the new diagnostic method...
2017: Journal of Cancer
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