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Lung injury acute

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https://www.readbyqxmd.com/read/28340238/cigarette-smoke-exposure-worsens-endotoxin-induced-lung-injury-and-pulmonary-edema-in-mice
#1
Jeffrey E Gotts, Jason Abbott, Xiaohui Fang, Haru Yanagisawa, Naoki Takasaka, Stephen L Nishimura, Carolyn S Calfee, Michael A Matthay
Introduction: Cigarette smoking (CS) remains a major public health concern and has recently been associated with an increased risk of developing acute respiratory distress syndrome (ARDS). Bronchoalveolar lavage (BAL) experiments in human volunteers have demonstrated that active smokers develop increased alveolar-epithelial barrier permeability to protein after inhaling lipopolysaccharide (LPS). Here we tested the hypothesis that short-term whole-body CS exposure would increase LPS-induced lung edema in mice...
March 9, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/28338491/perioperative-management-of-blood-loss-in-spine-surgery
#2
Rabia Qureshi, Varun Puvanesarajah, Amit Jain, Hamid Hassanzadeh
Spine procedures are associated with high rates of blood loss which can result in a greater need for transfusions. Repeated exposure to blood products is associated with risks and adverse reactions such as transfusion-related acute lung injury, fluid shifting, and infections. With the higher number of spine procedures and the increasing open surgery times associated with difficult procedures, excessive blood loss has become more prevalent. Perioperative methods have been established to combat the excessive blood loss and decrease the need for blood products...
March 23, 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28337325/tetrahydroisoquinoline-7-carboxamide-derivatives-as-new-selective-discoidin-domain-receptor-1-ddr1-inhibitors
#3
Zhen Wang, Yali Zhang, Sergio G Bartual, Jinfeng Luo, Tingting Xu, Wenting Du, Qiuju Xun, Zhengchao Tu, Rolf A Brekken, Xiaomei Ren, Alex N Bullock, Guang Liang, Xiaoyun Lu, Ke Ding
Acute lung injury (ALI) is a deadly symptom for serious lung inflammation. Discoidin Domain Receptor 1 (DDR1) is a new potential target for anti-inflammatory drug discovery. A new selective tetrahydroisoquinoline-7-carboxamide based DDR1 inhibitor 7ae was discovered to tightly bind the DDR1 protein and potently inhibit its kinase function with a Kd value of 2.2 nM and an IC50 value of 6.6 nM, respectively. The compound dose-dependently inhibited lipopolysaccharide (LPS)-induced interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) release in mouse primary peritoneal macrophages (MPMs)...
March 9, 2017: ACS Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28337284/hepatoprotective-effects-of-gentianella-turkestanerum-extracts-on-acute-liver-injury-induced-by-carbon-tetrachloride-in-mice
#4
Jianghua Yang, Dandan Zhu, Bowei Ju, Xiangying Jiang, Junping Hu
Objective: To investigate the contents of secoiridoid compounds (i.e. sweroside, swertiamarin and gentiopicrin) from Gentianella turkestanerum extracts, and the potential effects of G. turkestanerum extracts against carbon tetrachloride (CCl4) induced liver injury in mice. Methods: The contents of swertiamarin, gentiopicroside and sweroside from different G. turkestanerum extracts were determined with high performance liquid chromatography (HPLC). CCl4 was used to induce acute liver injury in mice. The serum aspartate amino transferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP), total protein (TP), total bilirubin (TB), superoxide dismutase (SOD), malondialdehyde (MDA), glutathione transferase (GSH) and catalase (CAT) were measured...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28333981/lipopolysaccharide-induced-endotoxemia-in-corn-oil-preloaded-mice-causes-an-extended-course-of-lung-injury-and-repair-and-pulmonary-fibrosis-a-translational-mouse-model-of-acute-respiratory-distress-syndrome
#5
Chaomin Wu, Colin E Evans, Zhiyu Dai, Xiaojia Huang, Xianming Zhang, Hua Jin, Guochang Hu, Yuanlin Song, You-Yang Zhao
Acute respiratory distress syndrome (ARDS) is characterized by acute hypoxemia respiratory failure, bilateral pulmonary infiltrates, and pulmonary edema of non-cardiac origin. Effective treatments for ARDS patients may arise from experimental studies with translational mouse models of this disease that aim to delineate the mechanisms underlying the disease pathogenesis. Mouse models of ARDS, however, can be limited by their rapid progression from injured to recovery state, which is in contrast to the course of ARDS in humans...
2017: PloS One
https://www.readbyqxmd.com/read/28329897/maternal-labor-delivery-and-perinatal-outcomes-associated-with-placental-abruption-a-systematic-review
#6
Katheryne L Downes, Katherine L Grantz, Edmond D Shenassa
Objective Risk factors for placental abruption have changed, but there has not been an updated systematic review investigating outcomes. Methods We searched PubMed, EMBASE, Web of Science, SCOPUS, and CINAHL for publications from January 1, 2005 through December 31, 2016. We reviewed English-language publications reporting estimated incidence and/or risk factors for maternal, labor, delivery, and perinatal outcomes associated with abruption. We excluded case studies, conference abstracts, and studies that lacked a referent/comparison group or did not clearly characterize placental abruption...
March 22, 2017: American Journal of Perinatology
https://www.readbyqxmd.com/read/28329287/outcome-after-procedures-for-retained-blood-syndrome-in-coronary-surgery
#7
Tuomas Tauriainen, Eeva-Maija Kinnunen, Joni Koski-Vähälä, Matti-Aleksi Mosorin, Juhani Airaksinen, Fausto Biancari
OBJECTIVES: Incomplete drainage of blood from around the heart and lungs can lead to retained blood syndrome (RBS) after cardiac surgery. The aim of this study was to assess the incidence of and the outcome after procedures for RBS in patients undergoing isolated coronary artery bypass grafting (CABG). METHODS: A total of 2764 consecutive patients who underwent isolated CABG from 2006 to 2013 were investigated retrospectively. Patients undergoing any procedure for RBS were compared with patients who did not undergo any procedure for RBS...
February 17, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28328650/exosomes-in-critical-illness
#8
Nora Terrasini, Vincenzo Lionetti
OBJECTIVE: Exosomes are small, cell-released vesicles (40-100 nm in size) with the potential to transfer proteins, lipids, small RNAs, messenger RNAs, or DNA between cells via interstitial fluids. Due to their role in tissue homeostasis, exosomes have emerged as a new type of therapeutic and diagnostic (theranostic) tool in the noninvasive assessment of organ response to injury or treatment and in the development of reliable organ-protective intensive therapy. Our review provides current insights into the role of exosomes in the personalized management of injury and repair responses in critical illness...
March 21, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28328069/autophagy-maintains-the-integrity-of-endothelial-barrier-in-lps-induced-lung-injury
#9
Dan Zhang, Jian Zhou, Le Chi Ye, Jing Li, Zhenzhou Wu, Yuping Li, Chichi Li
Understanding the role and underlying regulation mechanism of autophagy in lipopolysaccharide-induced lung injury (LPS-LI) may provide potentially new pharmacological targets for treatment of acute lung injury. The aim of this study was to investigate the functional significance of autophagy in LPS-LI. The autophagy of human pulmonary microvascular endothelial cells (HPMVECs) and mice was inhibited before they were challenged with LPS. In vitro, permeability, vitality and the lactate dehydrogenase (LDH) release rate of the cells were detected, the zonula occluden-1 (ZO-1) expression and the stress fiber formation were determined...
March 22, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28323904/pyrrolidine-dithiocarbamate-administered-during-ex-vivo-lung-perfusion-promotes-rehabilitation-of-injured-donor-rat-lungs-obtained-after-prolonged-warm-ischemia
#10
Cyril Francioli, Xingyu Wang, Roumen Parapanov, Etienne Abdelnour, Jérôme Lugrin, Fabrizio Gronchi, Jean Perentes, Philippe Eckert, Hans-Beat Ris, Lise Piquilloud, Thorsten Krueger, Lucas Liaudet
Damaged lung grafts obtained after circulatory death (DCD lungs) and warm ischemia may be at high risk of reperfusion injury after transplantation. Such lungs could be pharmacologically reconditioned using ex-vivo lung perfusion (EVLP). Since acute inflammation related to the activation of nuclear factor kappaB (NF-κB) is instrumental in lung reperfusion injury, we hypothesized that DCD lungs might be treated during EVLP by pyrrolidine dithiocarbamate (PDTC), an inhibitor of NF-κB. Rat lungs exposed to 1h warm ischemia and 2 h cold ischemia were subjected to EVLP during 4h, in absence (CTRL group, N = 6) or in presence of PDTC (2...
2017: PloS One
https://www.readbyqxmd.com/read/28323056/fty720-promotes-pulmonary-fibrosis-when-administered-during-the-remodelling-phase-following-a-bleomycin-induced-lung-injury
#11
David R Gendron, Anne-Marie Lemay, Pascale Blais Lecours, Valérie Perreault-Vallières, Carole-Ann Huppé, Ynuk Bossé, Marie-Renée Blanchet, Geneviève Dion, David Marsolais
Fibrosis complicates numerous pathologies including interstitial lung diseases. Sphingosine analogs such as FTY720 can alleviate lung injury-induced fibrosis in murine models. Contradictorily, FTY720 also promotes in vitro processes normally leading to fibrosis and high doses in vivo foster lung fibrosis by enhancing vascular leakage into the lung. The goal of this study was to determine the effect of low doses of FTY720 on lung fibrosis triggered by an acute injury in mice. We first defined the time-boundaries delimiting the inflammatory and remodelling phases of an injury elicited by bleomycin based on neutrophil counts, total lung capacity and lung stiffness...
March 16, 2017: Pulmonary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28322888/pneumolysin-as-a-potential-therapeutic-target-in-severe-pneumococcal-disease
#12
REVIEW
Ronald Anderson, Charles Feldman
Acute pulmonary and cardiac injury remain significant causes of morbidity and mortality in those afflicted with severe pneumococcal disease, with the risk for early mortality often persisting several years beyond clinical recovery. Although remaining to be firmly established in the clinical setting, a considerable body of evidence, mostly derived from murine models of experimental infection, has implicated the pneumococcal, cholesterol-binding, pore-forming toxin, pneumolysin (Ply), in the pathogenesis of lung and myocardial dysfunction...
March 16, 2017: Journal of Infection
https://www.readbyqxmd.com/read/28322314/the-prognostic-value-of-n-terminal-prob-type-natriuretic-peptide-in-patients-with-acute-respiratory-distress-syndrome
#13
Chih-Cheng Lai, Mei-I Sung, Chung-Han Ho, Hsiao-Hua Liu, Chin-Ming Chen, Shyh-Ren Chiang, Chien-Ming Chao, Wei-Lun Liu, Shu-Chen Hsing, Kuo-Chen Cheng
We investigated whether N-terminal proB-type natriuretic peptide (NT-proBNP) predicts the prognosis of patients with acute respiratory distress syndrome (ARDS). Between December 1, 2012, and May 31, 2015, this observational study recruited patients admitted to our tertiary medical center who met the Berlin criteria for ARDS and who had their NT-proBNP measured. The main outcome was 28-day mortality. We enrolled 61 patients who met the Berlin criteria for ARDS: 7 were classified as mild, 29 as moderate, and 25 as severe...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28321891/comparative-pharmacokinetic-study-of-pyranocoumarins-and-khellactone-in-normal-and-acute-lung-injury-rats-after-oral-administration-of-peucedanum-praeruptorum-dunn-extracts-using-a-rapid-and-sensitive-lc-ms-ms-method
#14
An Kang, Tong Xie, Dong Zhu, Yu Dong, Hongmei Wen, Yuqiong Pei, Jinjun Shan, Liuqing Di
Pyranocoumarins are the main constitutes in Peucedanum praeruptorum Dunn, and possess various biological activities. In this article, we developed and validated a rapid and sensitive liquid chromatography (LC) tandem mass spectrometry method for targeted quantification of praeruptorin A, praeruptorin B, praeruptorin E and khellactone, a common metabolite of these pyranocoumarins in rat plasma samples. We then performed a comparative pharmacokinetic study of these pyranocoumarins and khellactone in normal and LPS induced acute lung injury (ALI) rats following oral administration of Peucedanum praeruptorum Dunn extracts...
March 21, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28321785/microrna-34a-suppresses-autophagy-in-alveolar-type-ii-epithelial-cells-in-acute-lung-injury-by-inhibiting-foxo3-expression
#15
Lan Song, Fangliang Zhou, Lijuan Cheng, Mei Hu, Yingchun He, Bo Zhang, Duanfang Liao, Zhaojun Xu
Excessive autophagic activity of alveolar type II epithelial (AT-II) cells is one of the main causes of acute lung injury (ALI); however, the underlying molecular mechanism remains to be determined. The microRNAs (miRNAs) are involved with autophagy in many diseases. The objective of this study was therefore to investigate the relationship between the miRNA expression and the autophagic activity of the AT-II cells in the pathogenesis of ALI and its molecular mechanism. A mouse model of ALI and AT-II cell injury was induced using lipopolysaccharide (LPS) in vivo and in vitro, and the expression of miR-34a and the autophagy-related proteins LC3 II/I and p62 were determined...
March 21, 2017: Inflammation
https://www.readbyqxmd.com/read/28319568/predictive-value-of-intraoperative-troponin-i-elevation-in-pediatric-living-donor-liver-transplant-recipients-with-biliary-atresia
#16
Mingwei Sheng, Yuanbang Lin, Yiqi Weng, Rubin Xu, Ying Sun, Wenli Yu, Hongyin Du
BACKGROUND: Pediatric living donor liver transplantation is associated with slight alteration in cardiac enzymes without ongoing acute cardiac injury, but available information about the significance of these changes is limited. The aims of this study were to analyze the link between the anomalies of intraoperative serum cardiac troponin I (cTnI) and acute lung injury during the first week after liver transplantation. METHODS: In this retrospective study, 123 children suffered from biliary atresia were enrolled...
March 18, 2017: Transplantation
https://www.readbyqxmd.com/read/28318621/early-peritoneal-dialysis-reduces-lung-inflammation-in-mice-with-ischemic-acute-kidney-injury
#17
Chris Altmann, Nilesh Ahuja, Carol M Kiekhaefer, Ana Andres Hernando, Kayo Okamura, Rhea Bhargava, Jane Duplantis, Lara A Kirkbride-Romeo, Jill Huckles, Benjamin M Fox, Kashfi Kahn, Danielle Soranno, Hyo-Wook Gil, Isaac Teitelbaum, Sarah Faubel
Although dialysis has been used in the care of patients with acute kidney injury (AKI) for over 50 years, very little is known about the potential benefits of uremic control on systemic complications of AKI. Since the mortality of AKI requiring renal replacement therapy (RRT) is greater than half in the intensive care unit, a better understanding of the potential of RRT to improve outcomes is urgently needed. Therefore, we sought to develop a technically feasible and reproducible model of RRT in a mouse model of AKI...
March 16, 2017: Kidney International
https://www.readbyqxmd.com/read/28315999/artesunate-protects-lps-induced-acute-lung-injury-by-inhibiting-tlr4-expression-and-inducing-nrf2-activation
#18
Deli Zhao, Jinling Zhang, Guangquan Xu, Qiushi Wang
Artesunate, a derivative of artemisinin, has been reported to have anti-inflammatory property. However, few studies showed the protective effects of artesunate on lung injury. In this study, we aimed to investigate the effects of artesunate on LPS-induced lung injury in mice. The mice were treated with artesunate 1 h before or after LPS treatment. The effects of artesunate on lung MPO activity and malondialdehyde (MDA) content were detected. The lung wet/dry radio and the numbers of inflammatory cells in BALF were also measured...
March 18, 2017: Inflammation
https://www.readbyqxmd.com/read/28315822/protective-effect-of-zerumbone-reduces-lipopolysaccharide-induced-acute-lung-injury-via-antioxidative-enzymes-and-nrf2-ho-1-pathway
#19
Wai-Shing Leung, Ming-Ling Yang, Shiuan-Shinn Lee, Chi-Wen Kuo, Yung-Chyuan Ho, Rosa Huang-Liu, Hui-Wen Lin, Yu-Hsiang Kuan
Acute lung injury (ALI) is a serious disease with high morbidity and mortality rate. Although there are effective strategies for treatment of ALI; a widely accepted specific pharmacotherapy has not yet established. Zerumbone, the major active phytochemical compound from Zingiber zerumbet Smith, exhibits various beneficial biological and pharmacological activities, such as antioxidation, anti-inflammation, immunomodulation, and anti-cancer. We aimed to study the potential protective effects and mechanisms of zerumbone in mouse model of lipopolysaccharide (LPS)-induced ALI...
March 15, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28315572/protective-effects-of-cucurbitacin-b-on-acute-lung-injury-induced-by-sepsis-in-rats
#20
Shu Hua, Xing Liu, Shuguang Lv, Zhifang Wang
BACKGROUND The aim of this study was to investigate the protective effects of cucurbitacin B (CuB) on sepsis-induced acute lung injury (ALI) in rats. MATERIAL AND METHODS An ALI model was made by cecal ligation and puncture (CLP) in SD rats. Rats were randomly divided into 5 groups (n=15 per group): animals undergoing a sham CLP (sham group); animals undergoing CLP (CLP control group); animals undergoing CLP and treated with CuB at 1 mg/kg of body weight (bw) (low-dose CuB [L-CuB] group), animals undergoing CuB at 2 mg/kg of bw (mid-dose CuB [M-CuB] group); and animals undergoing CuB at 5 mg/kg of bw (high-dose CuB [H-CuB] group)...
March 18, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
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