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Acute lung edema

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https://www.readbyqxmd.com/read/28542443/effects-of-pressure-support-and-pressure-controlled-ventilation-on-lung-damage-in-a-model-of-mild-extrapulmonary-acute-lung-injury-with-intra-abdominal-hypertension
#1
Cintia L Santos, Raquel S Santos, Lillian Moraes, Cynthia S Samary, Nathane S Felix, Johnatas D Silva, Marcelo M Morales, Robert Huhle, Marcelo G Abreu, Alberto Schanaider, Pedro L Silva, Paolo Pelosi, Patricia R M Rocco
Intra-abdominal hypertension (IAH) may co-occur with the acute respiratory distress syndrome (ARDS), with significant impact on morbidity and mortality. Lung-protective controlled mechanical ventilation with low tidal volume and positive end-expiratory pressure (PEEP) has been recommended in ARDS. However, mechanical ventilation with spontaneous breathing activity may be beneficial to lung function and reduce lung damage in mild ARDS. We hypothesized that preserving spontaneous breathing activity during pressure support ventilation (PSV) would improve respiratory function and minimize ventilator-induced lung injury (VILI) compared to pressure-controlled ventilation (PCV) in mild extrapulmonary acute lung injury (ALI) with IAH...
2017: PloS One
https://www.readbyqxmd.com/read/28535510/heat-shock-protein-a12b-protects-vascular-endothelial-cells-against-sepsis-induced-acute-lung-injury-in-mice
#2
Yi Chen, Lei Wang, Qiuxiang Kang, Xu Zhang, Guifang Yu, Xiaojian Wan, Jiafeng Wang, Keming Zhu
BACKGROUND: Pulmonary endothelial injury is a critical process in the pathogenesis of acute lung injury (ALI) during sepsis. Heat shock protein A12B (HSPA12B) is mainly expressed in endothelial cells and protects against several harmful factors. However, the effects of HSPA12B in sepsis-induced ALI and its potential mechanisms of action remain unclear. METHODS: For in vivo experiments, C57BL/6 mice were randomly divided into four groups (n=15): a sham operation group, a cecal ligation and puncture (CLP) group, a HSPA12B siRNA-CLP group and a negative control (NC) siRNA-CLP group...
May 25, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28534140/protective-effects-of-neural-crest-derived-stem-cell-conditioned-media-against-ischemia-reperfusion-induced-lung-injury-in-rats
#3
Chung-Kan Peng, Shu-Yu Wu, Shih-En Tang, Min-Hui Li, Shih-Shiuan Lin, Shi-Jye Chu, Kun-Lun Huang
Current treatments for ischemia-reperfusion (IR)-induced acute lung injury are limited. Mesenchymal stem cell-conditioned medium (CM) has been reported to attenuate lung injury. Neural crest stem cells (NCSCs), a type of multipotent stem cells, are more easily obtained than mesenchymal stem cells. We hypothesize that NCSC-CM has anti-inflammatory properties that could protect against IR-induced lung injury in rats. In this study, NCSC-CM was derived from rat NCSCs. Typical acute lung injury was induced by 30-min ischemia followed by 90-min reperfusion in adult male Sprague-Dawley rats...
May 23, 2017: Inflammation
https://www.readbyqxmd.com/read/28529485/hydrostatin-sn1-a-sea-snake-derived-bioactive-peptide-reduces-inflammation-in-a-mouse-model-of-acute-lung-injury
#4
Guosheng Wu, Junjie Wang, Pengfei Luo, An Li, Song Tian, Hailong Jiang, Yongjun Zheng, Feng Zhu, Yiming Lu, Zhaofan Xia
Snake venom has been used for centuries as a traditional Chinese medicine. Hydrostatin-SN1 (H-SN1), a bioactive peptide extracted from the Hydrophis cyanocinctus venom gland T7 phage display library, was reported to have the ability to reduce inflammation in a dextran sulfate sodium-induced murine colitis model. In this study, we sought to investigate the inhibitory potential of H-SN1 on inflammation in a murine model of lipopolysaccharide (LPS)-induced acute lung injury (ALI), and elucidate the anti-inflammatory mechanism in LPS-stimulated RAW 264...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28526849/interleukin-22-attenuated-angiotensin-ii-induced-acute-lung-injury-through-inhibiting-the-apoptosis-of-pulmonary-microvascular-endothelial-cells
#5
Zhiyong Wu, Zhipeng Hu, Xin Cai, Wei Ren, Feifeng Dai, Huagang Liu, Jinxing Chang, Bowen Li
Apoptosis of pulmonary microvascular endothelial cells (PMVECs) was considered to be closely related to the pathogenesis of acute lung injury (ALI). We aim to investigate whether IL-22 plays protective roles in lung injury through inhibiting the apoptosis of PMVECs. ALI model was induced through subcutaneous infusion of angiotensin II (Ang II). Lung injury and infiltration of inflammatory cells were evaluated by determining the PaO2/FiO2, calculation of dry to weight ratio in lung, and immunohistochemisty analysis...
May 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28522565/integrin-%C3%AE-v%C3%AE-5-inhibition-protects-against-ischemia-reperfusion-induced-lung-injury-in-an-autophagy-dependent-manner
#6
Dan Zhang, Chichi Li, Yuanlin Song, Jian Zhou, Yuping Li, Jing Li, Chunxue Bai
Integrin αvβ5 mediates pulmonary endothelial barrier function and acute lung injury (LI), but its roles in cell apoptosis and autophagy are unclear. Thus, the aims of this study were to investigate the significance of αvβ5 in ischemia/reperfusion (I/R)-induced apoptosis and LI and to explore the relationship between αvβ5 and autophagy. Human pulmonary micro-vascular endothelial cells (HPMVECs) were pretreated with an αvβ5-blocking antibody (ALULA) and challenged with oxygen-glucose deprivation/oxygen-glucose restoration, which mimics I/R; then, cellular autophagy and apoptosis were detected, and cell permeability was assessed...
May 18, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28509332/myeloid-but-not-epithelial-tissue-factor-exerts-protective-anti-inflammatory-properties-in-acid-aspiration-induced-acute-lung-injury
#7
J B Kral-Pointner, W C Schrottmaier, V Horvath, H Datler, L Hell, C Ay, B Niederreiter, B Jilma, J A Schmid, A Assinger, N Mackman, S Knapp, G Schabbauer
INTRODUCTION: Acute lung injury (ALI) is a life-threatening condition characterized by damaged alveolar-capillary structures and activation of inflammatory and hemostatic processes. Tissue factor (TF) represents a crucial link between inflammation and coagulation, as inflammatory mediators induce myeloid TF expression and TF initiates the extrinsic coagulation. OBJECTIVE: Since pulmonary inflammation stimulates TF expression and TF modulates immune responses, we aimed to elucidate its impact on ALI...
May 16, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28508472/fatal-ingestion-of-chlumsky-disinfectant-solution
#8
Petr Handlos, Matěj Uvíra, Klára Marecová, Marie Staňková, Margita Smatanová, Igor Dvořáček, Marek Joukal
A 32-year-old pregnant woman in the 25th week of pregnancy underwent oral glucose tolerance screening at the diabetologist's. Later that day, she was found dead in her apartment possibly poisoned with Chlumsky disinfectant solution (solutio phenoli camphorata). An autopsy revealed chemical burns in the digestive system. The lungs and the brain showed signs of severe edema. The blood of the woman and fetus was analyzed using gas chromatography with mass spectrometry and revealed phenol, its metabolites (phenyl glucuronide and phenyl sulfate) and camphor...
May 16, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28497420/the-role-of-high-airway-pressure-and-dynamic-strain-on-ventilator-induced-lung-injury-in-a-heterogeneous-acute-lung-injury-model
#9
Sumeet V Jain, Michaela Kollisch-Singule, Joshua Satalin, Quinn Searles, Luke Dombert, Osama Abdel-Razek, Natesh Yepuri, Antony Leonard, Angelika Gruessner, Penny Andrews, Fabeha Fazal, Qinghe Meng, Guirong Wang, Louis A Gatto, Nader M Habashi, Gary F Nieman
BACKGROUND: Acute respiratory distress syndrome causes a heterogeneous lung injury with normal and acutely injured lung tissue in the same lung. Improperly adjusted mechanical ventilation can exacerbate ARDS causing a secondary ventilator-induced lung injury (VILI). We hypothesized that a peak airway pressure of 40 cmH2O (static strain) alone would not cause additional injury in either the normal or acutely injured lung tissue unless combined with high tidal volume (dynamic strain). METHODS: Pigs were anesthetized, and heterogeneous acute lung injury (ALI) was created by Tween instillation via a bronchoscope to both diaphragmatic lung lobes...
December 2017: Intensive Care Medicine Experimental
https://www.readbyqxmd.com/read/28491851/pemetrexed-induced-acute-kidney-failure-following-irreversible-renal-damage-two-case-reports-and-literature-review
#10
Tito Zattera, Francesco Londrino, Matteo Trezzi, Roberto Palumbo, Antonio Granata, Paola Tatangelo, Valentina Corbani, Valeria Falqui, Nadia Chiappini, Lisa Mathiasen, Marco Cavallini, Davide Rolla
BACKGROUND: Pemetrexed (PEM) is a new-generation multitargeted antifolate agent with a demonstrated broad-spectrum activity in several types of human cancers, including non-small cell lung cancer (NSCLC) and mesothelioma. Major side effects include dose-limiting hematologic toxicities. PEM nephrotoxicity is well known; however, its frequency is considered to be low. CASE PRESENTATION: Here we report two cases of acute kidney injury (AKI) related to PEM administration (500 mg/m2) in patients with NSCLC...
March 2017: Journal of Nephropathology
https://www.readbyqxmd.com/read/28488585/eets-reduces-lps-induced-hyperpermeability-by-targeting-grp78-mediated-src-activation-and-subsequent-rho-rock-signaling-pathway
#11
Ruolan Dong, Danli Hu, Yan Yang, Zhihui Chen, Menglu Fu, Dao Wen Wang, Xizhen Xu, Ling Tu
Integrity of endothelial barrier is a determinant of the prognosis in the acute lung injury caused by sepsis. The epoxyeicosatrienoic acids (EETs), metabolites of arachidonic acid, exhibit protective effects in various pathogenic states, however, whether EETs play a role in endothelial barrier enhancement and the involved mechanisms remain to be investigated. Here, we show that increased EETs level by endothelial specific cytochrome P450 epoxygenase 2J2 over-expression and soluble epoxide hydrolase (sEH) inhibitor TPPU reduced lipopolysaccharide-induced endothelial hyper-permeability in vivo, accompanied by improved survival of septic mice...
April 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28480221/liver-x-receptor-agonist-to901317-attenuates-paraquat-induced-acute-lung-injury-through-inhibition-of-nf-%C3%AE%C2%BAb-and-jnk-p38-mapk-signal-pathways
#12
Xiao Hu, Haitao Shen, Yu Wang, Min Zhao
Paraquat (PQ) is a widely used herbicide with extremely high poisoning mortality mostly from acute lung injury (ALI) or progressive pulmonary fibrosis. Toxicity mechanisms remain unclear, but a redox cycling process that generates reactive oxygen species (ROS) is involved, as are inflammation and cell apoptosis. We established an ALI mouse model by intraperitoneal injection of PQ (28 mg/kg) and then investigated the effects of a potent liver X receptor (LXR) agonist, TO901317 (5 or 20 mg/kg), injected intraperitoneally 30 min after PQ administration...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28472014/protection-by-the-eph-ephrin-system-against-mesenteric-ischemia-reperfusion-injury
#13
Valentina Vivo, Irene Zini, Anna Maria Cantoni, Andrea Grandi, Massimiliano Tognolini, Riccardo Castelli, Vigilio Ballabeni, Simona Bertoni, Elisabetta Barocelli
Mesenteric ischemia-reperfusion (I/R)-induced injury targets primarily endothelial and epithelial cells, leading to a cascade of inflammatory events, eventually culminating in life-threatening syndromes. Hitherto, the role of Eph, the largest family of tyrosine kinase receptors, and of their cell-bound ephrin ligands, whose interaction generates a bidirectional signaling, is still debated in I/R injury. The aim of the present work was therefore to investigate the effects produced by unidirectional activation of forward signaling (administration of chimeric protein ephrinA1-Fc), of reverse signaling (EphA2-Fc), or inhibition of both signals (monomeric EphA2 and the protein-protein interaction inhibitor UniPR1331) on the local and systemic inflammatory responses triggered by mesenteric I/R in mice...
May 2, 2017: Shock
https://www.readbyqxmd.com/read/28469778/the-protective-effect-and-mechanism-of-sevoflurane-on-lps-induced-acute-lung-injury-in-mice
#14
Qi-Feng Tang, Zhi-Yuan Fang, Cheng-Huan Shi
Acute lung injury (ALI) is a disturbance caused by infectious or non-infectious inflammation and lipopolysaccharide (LPS) could induce an artificial pathological ALI process. Sevoflurane has been demonstrated to be an inhaled anesthetic having anti-inflammatory and protective effects on inflammatory injury. To study the protective effects and mechanisms of sevoflurane on LPS-induced acute lung injury in mice. By assessing W/D ratio, sevofluranecan counteract the edema induced by LPS. The ELISA results showed that sevoflurane reduced IFN-γ production and increased IL-10 level...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28469772/epo-cyclosporine-combination-therapy-reduced-brain-infarct-area-in-rat-after-acute-ischemic-stroke-role-of-innate-immune-inflammatory-response-micro-rnas-and-mapk-family-signaling-pathway
#15
Chun-Man Yuen, Kuo-Ho Yeh, Christopher Glenn Wallace, Kuan-Hung Chen, Hung-Sheng Lin, Pei-Hsun Sung, Han-Tan Chai, Yung-Lung Chen, Cheuk-Kwan Sun, Chih-Hung Chen, Gour-Shenq Kao, Sheung-Fat Ko, Hon-Kan Yip
This study tested the hypothesis that erythropoietin (EPO) and cyclosporine (CsA) could effectively reduce brain infarct area (BIA) in rat after acute ischemic stroke (AIS) through regulating inflammation, oxidative stress, MAPK family signaling and microRNA (miR-223/miR-30a/miR-383). Adult male Sprague-Dawley rats (n = 48) were equally divided into group 1 (sham control), group 2 (AIS), group 3 [AIS+EPO (5,000 IU/kg at 0.5/24/48 h, subcutaneous)] and group 4 [AIS+CsA (20.0 mg/kg at 0.5/24/48 h, intra-peritoneal)]...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28469500/lung-adenocarcinoma-presenting-as-worsening-of-chronic-neck-pain-a-cautionary-tale
#16
Neeka N Akhavan, Tony S Brar, Edlira Maska
INTRODUCTION: Neck pain is a common musculoskeletal problem that up to 70% of the world population will experience at some point in their lives. Intramedullary spinal cord metastasis is an exceedingly rare complication of malignancy that affects less than 1% of all patients with cancer. CASE REPORT: We report a case of a 61-year-old man who presented to primary care clinic with 1-month history of worsening neck pain with associated neurologic deficits. Despite initial conservative management, the patient continued to have progressive worsening of sensory and motor deficits...
2017: Clinical Medicine Insights. Case Reports
https://www.readbyqxmd.com/read/28461072/anti-inflammatory-effects-of-rosmarinic-acid-4-o-%C3%AE-d-glucoside-in-reducing-acute-lung-injury-in-mice-infected-with-influenza-virus
#17
Jian-Xing Liu, Ying Zhang, Qiu-Ping Hu, Ji-Qiang Li, Yun-Tao Liu, Qing-Guang Wu, Jian-Guo Wu, Xiao-Ping Lai, Zhong-de Zhang, Xiong Li, Geng Li
Rosmarinic acid-4-O-β-D-glucoside (RAG) is a dicaffeoyl phenolic compound isolated from Sarcandra glabra (Thunb.) Nakai. Preliminary studies show that RAG has significant anti-inflammatory properties and can alleviate ear swelling in mice and the paw swelling in rats. Here, the anti-influenza effects of RAG were investigated in mice infected with A/FM/1/47 H1N1 virus. The survival rate and body weight were observed, the lung edema, virus copies, inflammatory cytokines (including IL-4, IL-5, TNF-α and IFN-γ) and oxidative damage indexes (including SOD, MDA, NO, and CAT) were measured...
April 29, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28457380/overexpression-of-hypoxia-inducible-factor-1%C3%AE-in-primary-graft-dysfunction-developing-in-an-orthotopic-lung-transplantation-rat%C3%A2-model
#18
F Lunardi, D Zampieri, M Vadori, D Bernardini, S E Vuljan, N Nannini, F Rea, E Cozzi, F Calabrese
BACKGROUND: Primary graft dysfunction (PGD) is the major cause of early morbidity and mortality after transplantation. A high rate of PGD is a frequent complication in orthotopic lung transplantation (OLT) models, which are currently used to investigate acute and chronic rejection pathways. Hypoxia-inducible factor (HIF)-1α is a heterodimeric αβ transcription factor that mediates tissue response to hypoxia. In other solid organ transplantations, a significant correlation between HIF-1α expression and PGD was detected...
May 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28456852/fluid-induced-lung-injury-role-of-trpv4-channels
#19
Shailesh Bihari, Dani-Louise Dixon, Mark D Lawrence, Dylan De Bellis, Claudine S Bonder, David P Dimasi, Andrew D Bersten
Administration of bolus intravenous fluid is associated with respiratory dysfunction and increased mortality, findings with no clear mechanistic explanation. The objective of this study was to examine whether bolus intravenous (i.v.) fluid administration results in acute lung injury in a rat model and further, to examine whether this injury is associated with transient receptor potential vallinoid (TRPV)4 channel function and endothelial inflammatory response. Healthy male Sprague-Dawley rats were administered 60 ml/kg 0...
April 29, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28454544/attenuation-of-acute-lung-injury-in-a-rat-model-by-semen-cassiae
#20
Xiuqing Chen, Xianming Zhang, Jie Zhang, Yang Gao, Zhaohui Yang, Shanshan Li, Haiwen Dai
BACKGROUND: Acute lung injury (ALI) is an inflammatory disorder. Semen Cassiae has potent anti-inflammatory activities. The aim of our study was to investigate whether Semen Cassiae plays a protective effect on lipopolysaccharide (LPS)-induced ALI and, if so, to elucidate its potential mechanism. METHODS: Male Sprague-Dawley rat lungs were injured by intratracheal instillation of LPS. Rats were treated with Semen Cassiae or vehicle 3 h after LPS challenge. Samples were harvested 24 h post-LPS administration...
April 28, 2017: BMC Complementary and Alternative Medicine
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