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https://www.readbyqxmd.com/read/29332324/effects-of-macrolide-and-corticosteroid-in-neutrophilic-asthma-mouse-model
#1
Tai Joon An, Chin Kook Rhee, Ji Hye Kim, Young Rong Lee, Jin Young Chon, Chan Kwon Park, Hyoung Kyu Yoon
BACKGROUND: Asthma is a disease of chronic airway inflammation with heterogeneous features. Neutrophilic asthma is corticosteroid-insensitive asthma related to absence or suppression of TH2 process and increased TH1 and/or TH17 process. Macrolides are immunomodulatory drug that reduce airway inflammation, but their role in asthma is not fully known. The purpose of this study was to evaluate the role of macrolides in neutrophilic asthma and compare their effects with those of corticosteroids...
January 2018: Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/29329427/ozone-induced-vascular-contractility-and-pulmonary-injury-are-differentially-impacted-by-diets-enriched-with-coconut-oil-fish-oil-and-olive-oil
#2
Samantha J Snow, Wan-Yun Cheng, Andres Henriquez, Myles Hodge, Virgina Bass, Gail M Nelson, Gleta Carswell, Judy E Richards, Mette C Schladweiler, Allen D Ledbetter, Brian Chorley, Kymberly M Gowdy, Haiyan Tong, Urmila P Kodavanti
Fish, olive, and coconut oil dietary supplementation have several cardioprotective benefits, but it is not established if they protect against air pollution-induced adverse effects. We hypothesized that these dietary supplements would attenuate ozone-induced systemic and pulmonary effects. Male Wistar Kyoto rats were fed either a normal diet, or a diet supplemented with fish, olive, or coconut oil for 8 weeks. Animals were then exposed to air or ozone (0.8 ppm), 4h/day for 2 days. Ozone exposure increased phenylephrine-induced aortic vasocontraction, which was completely abolished in rats fed the fish oil diet...
January 10, 2018: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29329251/pharmacological-investigation-of-the-anti-inflammation-and-anti-oxidation-activities-of-diallyl-disulfide-in-a-rat-emphysema-model-induced-by-cigarette-smoke-extract
#3
Yan Liu, Ang Li, Xiuli Feng, Xiao Sun, Xiaosong Zhu, Zhongxi Zhao
Diallyl disulfide (DADS) is the main organosulfur ingredient in garlic, with known antioxidant and anti-inflammatory activities. The aim of the present study was to investigate the effect of DADS on reducing the inflammation and redox imbalance in a rat emphysema model that was induced by intraperitoneal injection of cigarette smoke extract (CSE). Briefly, DADS exerted an anti-inflammation effect on emphysema rats through decreasing cell influx in the bronchoalveolar lavage fluid (BALF) and suppressing pro-inflammation cytokine production including tumor necrosis factor alpha (TNF-α), interleukin-1β (IL-1β), interleukin-6 (IL-6) via inhibiting the NF-κB pathway...
January 12, 2018: Nutrients
https://www.readbyqxmd.com/read/29328670/the-surface-oxidation-of-graphene-oxide-determines-membrane-damage-lipid-peroxidation-and-cytotoxicity-in-macrophages-in-a-pulmonary-toxicity-model
#4
Ruibin Li, Linda M Guiney, Chong Hyun Chang, Nikhita D Mansukhani, Zhaoxia Ji, Xiang Wang, Yu-Pei Liao, Wen Jiang, Bingbing Sun, Mark C Hersam, Andre E Nel, Tian Xia
While 2-dimensional graphene oxide (GO) is used increasingly in biomedical applications, there is uncertainty on how specific physicochemical properties relate to biocompatibility in mammalian systems. Although properties such as lateral size and the colloidal properties of the nanosheets are important, the specific material properties that we address here is the oxidation state and reactive surface groups on the planar surface. In this study, we used a GO library, comprised of pristine, reduced (rGO), and hydrated GO (hGO), in which quantitative assessment of the hydroxyl, carboxyl, epoxy and carbon radical contents were used to study the impact on epithelial cells and macrophages, as well as in the murine lung...
January 12, 2018: ACS Nano
https://www.readbyqxmd.com/read/29327941/infection-is-not-required-for-mucoinflammatory-lung-disease-in-cftr-knockout-ferrets
#5
Bradley H Rosen, T Idil Apak Evans, Shashanna R Moll, Jaimie S Gray, Bo Liang, Xingshen Sun, Yulong Zhang, Chandler W Jensen-Cody, Anthony M Swatek, Weihong Zhou, Nan He, Pavana G Rotti, Scott R Tyler, Nicholas W Keiser, Preston J Anderson, Leonard Brooks, Yalan Li, R Marshall Pope, Maheen Rajput, Eric A Hoffman, Kai Wang, J Kirk Harris, Kalpaj R Parekh, Katherine N Gibson-Corley, John F Engelhardt
RATIONALE: Classical interpretation of cystic fibrosis (CF) lung disease pathogenesis suggests that infection initiates disease progression, leading to an exuberant inflammatory response, excessive mucus, and ultimately bronchiectasis. While symptomatic antibiotic treatment controls lung infections early in disease, life-long bacterial residence typically ensues. Processes that control the establishment of persistent bacteria in the CF lung, and the contribution of non-infectious components to disease pathogenesis, are poorly understood...
January 12, 2018: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29326867/cavitary-lung-lesion-suspicious-for-malignancy-reveals-mycobacterium-xenopi
#6
Sumit Fogla, Vaishali M Pansare, Luis G Camero, Uzma Syeda, Naveen Patil, Arun Chaudhury
We report the case of a 68-year-old gentleman who presented with musculoskeletal chest pain which appeared suddenly when he bent over with his dog. The chest pain was localized to the left lower chest and increased with movement and deep breathing. The patient did not complain weight loss, night sweat, fever or chill. He complained of mild cough, with expectoration of whitish mucus. Imaging revealed cavitary chest lesion in the right upper lobe, which was initially suspected to be lung cancer. The patient had a 50-year-old history of smoking 2 packs per day...
2018: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/29326226/draft-genome-sequence-of-chryseobacterium-mucoviscidosis-sp-nov-strain-vt16-26-isolated-from-the-bronchoalveolar-lavage-fluid-of-a-patient-with-cystic-fibrosis
#7
George Tetz, Victor Tetz
We report here the draft genome sequence of Chryseobacterium mucoviscidosis VT16-26, a novel bacterium isolated from the lungs of a patient with cystic fibrosis. The genome was composed of 4,403,956 bp and had 36.2% G+C content. We detected 4,048 genes with predicted protein-coding functions, including those associated with antibiotic resistance and virulence.
January 11, 2018: Genome Announcements
https://www.readbyqxmd.com/read/29324063/granulomatous-lung-inflammation-is-nanoparticle-type-dependent
#8
Yves Pacheco, Marine Ponchon, Serge Lebecque, Alain Calender, Jean François Bernaudin, Dominique Valeyre, Marc Iglarz, Daniel S Strasser, Rolf Studer, Diego Freti, Toufiq Renno, Abederrazzaq Bentaher
BACKGROUND: Nanoparticles are increasingly suspected as a strong etiologic factor of granuloma formation. AIM OF THE STUDY: The aim of our study was to compare lung inflammatory response and histology changes following exposure of mice to two widely used nanoparticles: carbon nanotubes (MWCNT) and cadmium-based nanoparticles (QDOT705) in an attempt to better our understanding of granulomatous inflammation. MATERIALS AND METHODS: Various groups of mice were included: control mice and mice that were intranasally instilled with QDOT or MWCNT...
January 11, 2018: Experimental Lung Research
https://www.readbyqxmd.com/read/29324051/anti-il-8-antibody-potentiates-the-effect-of-exogenous-surfactant-in-respiratory-failure-caused-by-meconium-aspiration
#9
Pavol Mikolka, Jana Kopincova, Petra Kosutova, Maros Kolomaznik, Andrea Calkovska, Daniela Mokra
AIM: Meconium aspiration syndrome (MAS) is life-threatening respiratory failure of newborns which can be treated by exogenous surfactant. In response to meconium, increased levels of chemokine IL-8 (CXCL8) stimulate massive neutrophil infiltration of the lungs. Local accumulation and activation of neutrophils, on-going inflammation, lung edema, and oxidative damage contribute to inactivation of endogenous and therapeutically given surfactants. Therefore, we have hypothesized that addition of monoclonal anti-IL-8 antibody into exogenous surfactant can mitigate the neutrophil-induced local injury and the secondary surfactant inactivation and may finally result in improvement of respiratory functions...
January 11, 2018: Experimental Lung Research
https://www.readbyqxmd.com/read/29323413/extracorporeal-membrane-oxygenation-for-refractory-severe-respiratory-failure-in-acute-interstitial-pneumonia
#10
Gabriela Gonçalves-Venade, Nuno Lacerda-Príncipe, Roberto Roncon-Albuquerque, José Artur Paiva
Acute interstitial pneumonia (AIP) is a rare idiopathic interstitial lung disease with rapid progressive respiratory failure and high mortality. In the present report, three cases of AIP complicated by refractory respiratory failure supported with extracorporeal membrane oxygenation (ECMO) are presented. One male and two female patients (ages 27-59) were included. Venovenous ECMO support was provided using miniaturized systems, with two-site femoro-jugular circuit configuration. Despite lung protective ventilation, prone position and neuromuscular blockade, refractory respiratory failure of unknown etiology supervened (ratio of arterial oxygen partial pressure to fractional inspired oxygen 46-130) and ECMO was initiated after 3-7 days of mechanical ventilation...
January 11, 2018: Artificial Organs
https://www.readbyqxmd.com/read/29322375/predictors-of-short-term-lama-ineffectiveness-in-treatment-na%C3%A3-ve-patients-with-moderate-to-severe-copd
#11
Vladimir Fijačko, Marina Labor, Mirjana Fijačko, Sanda Škrinjarić-Cincar, Slavica Labor, Iva Dumbović Dubravčić, Tatjana Bačun, Aleksandar Včev, Sanja Popović-Grle, Davor Plavec
BACKGROUND: No specific (only subgroup) recommendations for the use of long-acting muscarinic antagonists in chronic obstructive pulmonary disease (COPD) exist. The aim of this exploratory hypothesis generating study was to assess whether different phenotypic/endotypic characteristics could be determinants of the short-term ineffectiveness of the initial tiotropium bromide monotherapy in treatment naïve moderate to severe COPD patients. METHODS: A total of 51 consecutively recruited COPD patients were followed for 3 months after the initial evaluation and prescribed initial treatment (tiotropium)...
January 10, 2018: Wiener Klinische Wochenschrift
https://www.readbyqxmd.com/read/29321987/gelam-honey-attenuates-ovalbumin-induced-airway-inflammation-in-a-mice-model-of-allergic-asthma
#12
Nur Salme Suhana Shamshuddin, Rozaini Mohd Zohdi
Allergic asthma is a chronic inflammatory disorder of the pulmonary airways. Gelam honey has been proven to possess anti-inflammatory property with great potential to treat an inflammatory condition. However, the effect of ingestion of Gelam honey on allergic asthma has never been studied. This study aimed to investigate the efficacy of Gelam honey on the histopathological changes in the lungs of a mice model of allergic asthma. Forty-two Balb/c mice were divided into seven groups: control, I, II, III, IV, V and VI group...
January 2018: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/29321935/desquamative-interstitial-pneumonia-complicated-by-diffuse-alveolar-haemorrhage
#13
Ayako Matsuo, Nobuhiro Matsumoto, Akiko Kitamura, Hironobu Tsubouchi, Shigehisa Yanagi, Masamitsu Nakazato
We report a rare case of desquamative interstitial pneumonia (DIP) with diffuse alveolar haemorrhage (DAH). A 56-year-old man diagnosed with DIP by surgical lung biopsy 2 years ago was admitted to our hospital because of severe acute respiratory failure. The DIP had progressed despite smoking cessation. On admission, the patient appeared extremely ill, and physical examination revealed respiratory distress. The patient required mechanical ventilation. High-resolution computed tomography showed diffuse ground glass opacity in both lungs...
February 2018: Respirology Case Reports
https://www.readbyqxmd.com/read/29321929/pleuritis-associated-with-primary-sjogren-syndrome
#14
Chiaki Hosoda, Yusuke Hosaka, Kai Ryu, Akira Kinoshita, Keisuke Saito, Kazuyoshi Kuwano
We herein present a case of a 71-year-old woman with primary Sjogren's syndrome (SjS), who developed bilateral pleural effusion and ground glass opacity during treatment with low-dose prednisolone. The pleural effusion and bronchoalveolar lavage fluid revealed elevation of lymphocytes. Thoracoscopic pleural biopsy showed infiltration of lymphocytes with no evidence of other diseases, confirming SjS-related pleuritis. Therefore, we initiated 20 mg prednisolone and pleural effusion was rapidly resolved. Our results indicate that SjS can be rarely complicated with pleuritis...
February 2018: Respirology Case Reports
https://www.readbyqxmd.com/read/29321926/lung-injury-associated-with-electronic-cigarettes-inhalation-diagnosed-by-transbronchial-lung-biopsy
#15
Masayuki Itoh, Kazutetsu Aoshiba, Yoriko Herai, Hiroyuki Nakamura, Tamiko Takemura
A 46-year-old healthy man developed respiratory distress, night sweats, fever, and weight loss after using electronic cigarettes (e-cigs) for approximately 1 month. He presented to the hospital when the symptoms worsened 2 months after onset. The findings of bronchoalveolar lavage (BAL) fluid examination and the following transbronchial lung biopsy examination led to the diagnosis of acute alveolitis: intra-alveolar fibrosis accompanied with exudate containing abundant lipid-laden macrophages, eosinophils, and neutrophils...
January 2018: Respirology Case Reports
https://www.readbyqxmd.com/read/29320485/non-invasive-ventilation-and-surfactant-treatment-as-primary-mode-of-respiratory-support-in-surfactant-deficient-newborn-piglets
#16
Carmen Rey-Santano, Victoria E Mielgo, Miguel Angel Gomez-Solaetxe, Francesca Ricci, Federico Bianco, Fabrizio Salomone, Begoña Loureiro, Jon López de Heredia Y Goya
BACKGROUND: Nasal continuous positive airway pressure (NCPAP) and nasal intermittent positive pressure ventilation (NIPPV), forms of non-invasive ventilation (NIV) for respiratory support, are increasingly being chosen as the initial treatment for neonates with surfactant (SF) deficiency. Our objective was to compare NCPAP with NIPPV with or without SF administration as a primary mode of ventilation. METHODS: Twenty-four newborn piglets with SF-deficient lung injury produced by repetitive bronchoalveolar lavages were randomly assigned to NCPAP or NIPPV, with or without SF administration (InSurE method)...
January 10, 2018: Pediatric Research
https://www.readbyqxmd.com/read/29319332/nebivolol-attenuates-oxidative-stress-and-inflammation-in-a-guinea-pig-model-of-ovalbumin-induced-asthma-a-possible-mechanism-for-its-favorable-respiratory-effects
#17
Sally A Abuelezz
An experimental model of ovalbumin (OVA) induced asthma was used to assess the effects of nebivolol, the third-generation selective β1-adrenergic receptor blocker, on airway reactivity, lung inflammation, and oxidative stress markers. The asthma induction protocol was done by OVA sensitization and challenge. Guinea pigs were classified into control, asthmatic, or asthmatic receiving nebivolol either 7.5 or 15 mg·kg-1·day-1 orally. At the end of the study respiratory, the anti-inflammatory and antioxidative effects of nebivolol were assessed...
January 10, 2018: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/29318026/broncholithiasis-associated-with-lower-airway-inflammation-and-subsequent-pyothorax-in-a-cat
#18
Ferran Valls Sanchez, Jennifer Stewart, Catherine Bovens, Jordi Puig
Case summary: A 12-year-old female spayed domestic shorthair cat presented with history of a long-term chronic cough that had worsened during the previous 2 months. Thoracic radiographs revealed numerous mineral opacities throughout the lung fields. Multiple bronchial plugs of pale yellow material were present on bronchoscopy, consistent with broncholithiasis. Bronchoalveolar lavage cytology revealed a mild neutrophilic inflammation and bacterial culture was negative. The cat was diagnosed with chronic inflammatory lower airway disease and broncholithiasis, suspected to be due to mineralisation of secretions in the bronchial lumen...
January 2018: JFMS Open Reports
https://www.readbyqxmd.com/read/29316754/-detection-of-metals-and-metalloids-in-the-lavage-fluid-of-whole-lung-lavage-of-the-cases-of-pneumoconiosis
#19
K Wen, C G Ding, G Chen, G X Ma, H Q Wang
Objective: To detect of the components and concentration of the metals and metalloids in the lavage fluid of whole-lung lavage (WLL) of the cases of pneumoconiosis, and analyze the characteristics, and explore the method to sample and process the samples of bronchoalveolar lavage fluid (BAL) . Methods: The samples of urine and serum of three cases of pneumoconiosis were collected before WLL, and the samples of BAL were collected during the WLL from the left and right lungs according to the sequence of four pressured gas flow and five negative pressure drainage...
November 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/29314868/bronchiolitis-obliterans-and-pulmonary-fibrosis-after-sulfur-mustard-inhalation-in-rats
#20
Matthew D McGraw, Marilyn M Dysart, Tara B Hendry-Hofer, Paul R Houin, Jacqueline S Rioux, Rhonda B Garlick, Joan E Loader, Russell Smith, Danielle C Paradiso, Wesley W Holmes, Dana R Anderson, Carl W White, Livia A Veress
RATIONALE: Inhalation of powerful chemical agents, such as sulfur mustard (SM), can have debilitating pulmonary consequences, such as bronchiolitis obliterans (BO) and parenchymal fibrosis (PF). The underlying pathogenesis of disorders after SM inhalation is not clearly understood, resulting in a paucity of effective therapies. OBJECTIVE: To evaluate the role of pro-fibrotic pathways involving TGF-β and PDGF in the development of BO and PF after inhalation injury sustained by SM, using a rat model...
January 9, 2018: American Journal of Respiratory Cell and Molecular Biology
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