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Acute lung injury

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https://www.readbyqxmd.com/read/28817088/the-role-of-neurogenic-inflammation-in-blood-brain-barrier-disruption-and-development-of-cerebral-oedema-following-acute-central-nervous-system-cns-injury
#1
REVIEW
Annabel J Sorby-Adams, Amanda M Marcoionni, Eden R Dempsey, Joshua A Woenig, Renée J Turner
Acute central nervous system (CNS) injury, encompassing traumatic brain injury (TBI) and stroke, accounts for a significant burden of morbidity and mortality worldwide, largely attributable to the development of cerebral oedema and elevated intracranial pressure (ICP). Despite this, clinical treatments are limited and new therapies are urgently required to improve patient outcomes and survival. Originally characterised in peripheral tissues, such as the skin and lungs as a neurally-elicited inflammatory process that contributes to increased microvascular permeability and tissue swelling, neurogenic inflammation has now been described in acute injury to the brain where it may play a key role in the secondary injury cascades that evolve following both TBI and stroke...
August 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28815665/pharmacological-modulation-of-c-x-c-motif-chemokine-receptor-4-influences-development-of-acute-respiratory-distress-syndrome-after-lung-ischemia-reperfusion-injury
#2
Sean P Nassoiy, Favin S Babu, Heather M LaPorte, Matthias Majetschak
Activation of CXC motif chemokine receptor 4 (CXCR4) has been reported to result in lung protective effects in various experimental models. The effects of pharmacological CXCR4 modulation on the development of acute respiratory distress syndrome (ARDS) after lung injury, however, are unknown. Thus, we studied whether blockade and activation of CXCR4 influences development of ARDS in a unilateral lung ischemia-reperfusion injury rat model. Anesthetized, mechanically ventilated animals underwent right lung ischemia (series 1: 30 min; series 2: 60 min) followed by reperfusion for 300 min...
August 16, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28815092/zinc-chloride-smoke-inhalation-induced-severe-acute-respiratory-distress-syndrome-first-survival-in-the-united-states-with-extended-duration-five-weeks-therapy-with-high-dose-corticosteroids-in-combination-with-lung-protective-ventilation
#3
Hafiz Mahboob, Robert Richeson Iii, Robert McCain
Zinc chloride smoke bomb exposure is frequently seen in military drills, combat exercises, metal industry works, and disaster simulations. Smoke exposure presents with variety of pulmonary damage based on the intensity of the exposure. Smoke induced severe acute respiratory distress syndrome (ARDS) is often fatal and there are no standard treatment guidelines. We report the first survival of smoke induced severe ARDS in the United States (US) with prolonged use of high dose steroids (five weeks) and lung protective ventilation alone...
2017: Case Reports in Critical Care
https://www.readbyqxmd.com/read/28812542/the-effect-of-molecular-weight-and-concentration-of-hyaluronan-on-the-recovery-of-the-rat-sciatic-nerve-sustaining-acute-traumatic-injury
#4
Sheng-Min Lan, Cheng-Chang Yang, Chia-Lung Lee, Jung-Shun Lee, I-Ming Jou
Acute traumatic peripheral nerve injury remains a significant clinical issue affecting mostly young individuals and their productivity in spite of advances in current medicine. Hyaluronan has been explored in this scenario for its anti-adhesive and high biocompatibility properties for decades. The molecular weight and concentration of the locally applied hyaluronan has been overlooked and not optimized. We used different molecular weights and concentrations of hyaluronan in a rat sciatic nerve crush injury model and found better overall outcomes with high molecular weight (3000 kDa) hyaluronan...
August 16, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28810618/sivelestat-sodium-hydrate-improves-post-traumatic-knee-osteoarthritis-through-nuclear-factor-%C3%AE%C2%BAb-in-a-rat-model
#5
Xiaofeng Yu, Lijun Zhao, Zhiping Yu, Changzheng Yu, Jianfei Bi, Binglong Sun, Haibo Cong
As a specific inhibitor of neutrophil elastase, sivelestat sodium hydrate has primarily been used in the treatment of acute lung injury caused by various factors since its approval in 2002. Sivelestat sodium hydrate also improves post-traumatic knee osteoarthritis (KOA), although its underlying mechanisms of action have yet to be elucidated. The aim of the current study was to determine if sivelestat sodium hydrate improves post-traumatic KOA through nuclear factor (NF)-κB in a rat model. Treatment with sivelestat sodium hydrate significantly inhibited the induction of structural changes and significantly increased the vertical episode count and ipsilateral static weight bearing of the joint in KOA rats (all P<0...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28809781/ac2-26-an-annexin-a1-peptide-attenuates-ischemia-reperfusion-induced-acute-lung-injury
#6
Wen-I Liao, Shu-Yu Wu, Geng-Chin Wu, Hsin-Ping Pao, Shih-En Tang, Kun-Lun Huang, Shi-Jye Chu
Annexin A1 (AnxA1) is an endogenous protein that modulates anti-inflammatory processes, and its therapeutic potential has been reported in a range of inflammatory diseases. The effect of AnxA1 on ischemia-reperfusion (IR)-induced lung injury has not been examined. In this study, isolated, perfused rat lungs were subjected to IR lung injury induced by ischemia for 40 min, followed by reperfusion for 60 min. The rat lungs were randomly treated with vehicle (phosphate-buffered saline), and Ac2-26 (an active N-terminal peptide of AnxA1) with or without an N-formyl peptide receptor (FPR) antagonist N-Boc-Phe-Leu-Phe-Leu-Phe (Boc2)...
August 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28808944/effect-of-ha330-resin-directed-hemoadsorption-on-a-porcine-acute-respiratory-distress-syndrome-model
#7
Xuefeng Xu, Chune Jia, Sa Luo, Yanming Li, Fei Xiao, Huaping Dai, Chen Wang
BACKGROUND: Blood purification is an emerging approach to dampening the cytokine storm. This study aims to assess the efficacy of HA330 resin-directed hemoadsorption (HA) on endotoxin-induced porcine acute respiratory distress syndrome (ARDS) model. METHODS: Twenty-four Chinese domestic pigs were allocated into saline group receiving intravenous infusion of saline (N = 6) and endotoxin group receiving intravenous infusion of LPS (N = 18). When ALI model was initially diagnosed, six pigs in the LPS and saline group were killed for BALF and histopathological analysis...
August 14, 2017: Annals of Intensive Care
https://www.readbyqxmd.com/read/28808222/perioperative-remote-acute-lung-injury-recent-update
#8
Zhaosheng Jin, Ka Chun Suen, Daqing Ma
Perioperative acute lung injury (ALI) is a syndrome characterised by hypoxia and chest radiograph changes. It is a serious post-operative complication, associated with considerable mortality and morbidity. In addition to mechanical ventilation, remote organ insult could also trigger systemic responses which induce ALI. Currently, there are limited treatment options available beyond conservative respiratory support. However, increasing understanding of the pathophysiology of ALI and the biochemical pathways involved will aid the development of novel treatments and help to improve patient outcome as well as to reduce cost to the health service...
January 19, 2017: Journal of Biomedical Research
https://www.readbyqxmd.com/read/28808186/oxygenation-inflammatory-response-and-lung-injury-during-one-lung-ventilation-in-rabbits-using-inspired-oxygen-fraction-of-0-6-vs-1-0
#9
Zeping Xu, Lianbing Gu, Qingming Bian, Pengyi Li, Lijun Wang, Jingyuan Zhang, Yanning Qian
Maintaining adequate oxygenation during one-lung ventilation (OLV) requires high inspired oxygen fraction (FiO2). However, high FiO2 also causes inflammatory response and lung injury. Therefore, it remains a great interest to clinicians and scientists to optimize the care of patients undergoing OLV. The aim of this study was to determine and compare oxygenation, inflammatory response and lung injury during OLV in rabbits using FiO2 of 0.6 vs. 1.0. After 30 minutes of two-lung ventilation (TLV) as baseline, 30 rabbits were randomly assigned to three groups receiving mechanical ventilation for 3 hours: the sham group, receiving TLV with 0...
October 17, 2016: Journal of Biomedical Research
https://www.readbyqxmd.com/read/28807216/early-resuscitation-with-exendin-4-alleviates-acute-lung-injury-after-hemorrhagic-shock-in-rats
#10
Xiang Song, Gan Chen, Xin Luo, Guoxing You, Yujing Yin, Ying Wang, Lian Zhao, Hong Zhou
BACKGROUND: Oxidative stress induced by hemorrhagic shock (HS) is known to initiate a systemic inflammatory response, which leads to subsequent acute lung injury. This study is aimed to assess the efficacy of exendin-4 (Ex-4) in attenuating lung injury in a rat model of HS and resuscitation (HS/R). METHODS: HS was induced in sodium pentobarbital-anesthetized adult male Wistar rats by withdrawing blood to maintain a mean arterial pressure of 30-35 mm Hg for 50 min...
August 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28807204/anti-inflammatory-effect-of-dexmedetomidine-combined-with-hypothermia-on-acute-respiratory-distress-syndrome-in-rats
#11
Xianfeng Chen, Lili Li, Juntao Hu, Chi Zhang, Yiping Pan, Diansheng Tian, Zhanhong Tang
BACKGROUND: To investigate the protective effect of combination of dexmedetomidine and hypothermia on lipopolysaccharide (LPS) induced acute respiratory distress syndrome in rats. METHODS: Fifty male Wistar rats were randomly divided into five groups, with 10 rats in each group. The acute respiratory distress syndrome model was reproduced by LPS injected into the right external jugular vein (L group); only saline was injected into the right external jugular vein for control group (C group)...
August 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28806218/hypoxemic-patients-with-bilateral-infiltrates-treated-with-high-flow-nasal-cannula-present-a-similar-pattern-of-biomarkers-of-inflammation-and-injury-to-acute-respiratory-distress-syndrome-patients
#12
Marina García-de-Acilu, Judith Marin-Corral, Antonia Vázquez, Laura Ruano, Mònica Magret, Ricard Ferrer, Joan R Masclans, Oriol Roca
OBJECTIVE: To examine whether patients with acute hypoxemia and bilateral opacities treated with high-flow nasal cannula and acute respiratory distress syndrome patients who were directly mechanically ventilated are similar in terms of lung epithelial, endothelial, and inflammatory biomarkers. DESIGN: Prospective, multicenter study. SETTING: ICUs at three university tertiary hospitals. PATIENTS: Intubated and nonintubated patients admitted to the ICU with acute hypoxemia (PaO2/FIO2 ≤ 300) and bilateral opacities...
August 10, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28804627/effect-of-rapamycin-on-early-stage-apoptosis-of-neutrophils-in-sprague-dawley-rats-with-acute-lung-injury
#13
Liwei Li, Changtai Zhu, Ye Yuan, Zhiqiang Li
Transfusion-related acute lung injury (TRALI) is a serious complication characterized by the acute onset of non-cardiogenic pulmonary edema following transfusion of blood products. It is not known whether rapamycin has an effect on TRALI that is caused by blood transfusion. The aim of the present study was to determine the effect of rapamycin on early stage apoptosis of neutrophils in Sprague-Dawley rats with acute lung injury. Animal models of TRALI and acute pancreatitis-associated lung injury (APALI) were prepared using Sprague-Dawley rats and histopathological examination of lung tissues was used to validate acute lung injury models...
August 2017: Biomedical Reports
https://www.readbyqxmd.com/read/28804538/exendin-4-assisted-adipose-derived-mesenchymal-stem-cell-therapy-protects-renal-function-against-co-existing-acute-kidney-ischemia-reperfusion-injury-and-severe-sepsis-syndrome-in-rat
#14
Pei-Hsun Sung, Hsin-Ju Chiang, Christopher Glenn Wallace, Chih-Chao Yang, Yen-Ta Chen, Kuan-Hung Chen, Chih-Hung Chen, Pei-Lin Shao, Yung-Lung Chen, Sarah Chua, Han-Tan Chai, Yi-Ling Chen, Tien-Hung Huang, Hon-Kan Yip, Mel S Lee
This study tested the hypothesis that combined therapy with exendin-4 (Ex4) and autologous adipose-derived mesenchymal stem cells (ADMSCs) was superior to either alone for protecting renal function against acute kidney ischemia-reperfusion (IR; 40-min ischemia/27-h reperfusion) injury when complicated by sepsis syndrome (SS; by cecal-ligation-puncture). Adult-male Sprague-Dawley rats (n=40) were equally divided into group 1 (sham-control), group 2 (IR-SS), group 3 (IR-SS + Ex4, 10 μg/kg subcutaneously 30 min after reperfusion and daily for 3 days), group 4 [IR-SS + ADMSC (1...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28802227/anti-inflammatory-effects-of-shufengjiedu-capsule-for-upper-respiratory-infection-via-the-erk-pathway
#15
Yanmei Li, Nianwei Chang, Yanqi Han, Mengge Zhou, Jie Gao, Yuanyuan Hou, Min Jiang, Tiejun Zhang, Gang Bai
BACKGROUND: Shufengjiedu Capsule (SFJD) is a type of Chinese traditional medicine compound for the treatment of acute upper respiratory tract infection. The present work aims to decipher the mechanism of SFJD. METHODS: In this study, we used target prediction and RNA sequence (RNA-Seq) based on transcriptome analysis to clarify the inflammation-eliminating mechanism of SFJD. Firstly, Pseudomonas aeruginosa (PAK) was used to induce acute lung injury in KM mice. After being treated by SFJD, the differently expressed genes were analyzed by RNA-Seq...
August 9, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28801798/downregulation-of-paralemmin-3-ameliorates-lipopolysaccharide-induced-acute-lung-injury-in-rats-by-regulating-inflammatory-response-and-inhibiting-formation-of-tlr4-myd88-and-tlr4-trif-complexes
#16
Xuxin Chen, Lu Tang, Jian Feng, Yi Wang, Zhihai Han, Jiguang Meng
Previous studies have demonstrated paralemmin-3 (PALM3) participates in Toll-like receptor (TLR) signaling. This study investigated the effect of PALM3 knockdown on lipopolysaccharide (LPS)-induced acute lung injury (ALI) and its underlying mechanisms. We constructed a recombinant adenoviral vector containing short hairpin RNA for PALM3 to knockdown PALM3 expression. A transgene-free adenoviral vector was used as a negative control. The ALI rat model was established by LPS peritoneal injection at 48-h post-transfection...
August 12, 2017: Inflammation
https://www.readbyqxmd.com/read/28801643/the-role-of-pge2-in-alveolar-epithelial-and-lung-microvascular-endothelial-crosstalk
#17
Thomas Bärnthaler, Jovana Maric, Wolfgang Platzer, Viktoria Konya, Anna Theiler, Carina Hasenöhrl, Benjamin Gottschalk, Sandra Trautmann, Yannick Schreiber, Wolfgang F Graier, Rudolf Schicho, Gunther Marsche, Andrea Olschewski, Dominique Thomas, Rufina Schuligoi, Akos Heinemann
Disruption of the blood-air barrier, which is formed by lung microvascular endothelial and alveolar epithelial cells, is a hallmark of acute lung injury. It was shown that alveolar epithelial cells release an unidentified soluble factor that enhances the barrier function of lung microvascular endothelial cells. In this study we reveal that primarily prostaglandin (PG) E2 accounts for this endothelial barrier-promoting activity. Conditioned media from alveolar epithelial cells (primary ATI-like cells) collected from BALB/c mice and A549 cells increased the electrical resistance of pulmonary human microvascular endothelial cells, respectively...
August 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28800542/digitoflavone-dg-attenuates-lps-induced-acute-lung-injury-through-reducing-oxidative-stress-and-inflammatory-response-dependent-on-the-suppression-of-txnip-nlrp3-and-nf-%C3%AE%C2%BAb
#18
Min Meng
Acute lung injury is a severe disease with a high rate of mortality. Digitoflavone (DG) was suggested to possess bioactivities to reduce oxidative stress, inflammation and to regulate apoptosis. In our study, the normal saline, a low dose of DG (12.5mg/kg), a medium dose of DG (25mg/kg) and a high dose of DG (50mg/kg) were administered to male C57BL/6 mice by gavage. And then, the mice were intratracheally injected with either normal saline or lipopolysaccharide (LPS). We found that DG ameliorated LPS-induced lung injury and platelets activation, accompanied with reduced CD41 expression and neutrophil platelet aggregates (NPAs)...
August 8, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28800474/nps-2143-a-selective-calcium-sensing-receptor-antagonist-inhibits-lipopolysaccharide-induced-pulmonary-inflammation
#19
Jae-Won Lee, Hyun Ah Park, Ok-Kyoung Kwon, Ji-Won Park, Gilhye Lee, Hee Jae Lee, Seung Jin Lee, Sei-Ryang Oh, Kyung-Seop Ahn
NPS 2143, a novel and selective antagonist of calcium-sensing receptor (CaSR) has been reported to possess anti-inflammatory activity. In the present study, we examined the protective effect of NPS 2143 on lipopolysaccharide (LPS)-induced acute lung injury (ALI). NPS 2143 pretreatment significantly inhibited the influx of inflammatory cells and the expression of monocyte chemoattractant protein-1 (MCP-1) in the lung of mice with LPS-induced ALI. NPS 2143 decreased the levels of neutrophil elastase (NE) and protein concentration in the bronchoalveolar lavage fluid (BALF)...
August 8, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28798953/the-ethanolic-stem-bark-extract-of-antrocaryon-micraster-inhibits-carrageenan-induced-pleurisy-and-pedal-oedema-in-murine-models-of-inflammation
#20
Leslie B Essel, David D Obiri, Newman Osafo, Aaron O Antwi, Babatunde M Duduyemi
We investigated the antioxidant and anti-inflammatory effects of a 70% v/v ethanol extract of the stem bark of Antrocaryon micraster on murine models of carrageenan-induced pleurisy and paw oedema. Rat pleural fluid was analysed for volume, protein content, and leucocytes, while lung histology was assessed for damage. Lung tissue homogenates were assayed for glutathione (GSH), superoxide dismutase (SOD), catalase (CAT), malondialdehyde (MDA), and myeloperoxidase (MPO). Phytochemical analysis was carried out on the stem bark...
2017: International Scholarly Research Notices
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