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Lung injury

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https://www.readbyqxmd.com/read/29058315/atelectasis-is-inversely-proportional-to-transpulmonary-pressure-during-weaning-from-ventilator-support-in-a-large-animal-model
#1
M Gudmundsson, G Perchiazzi, M Pellegrini, A Vena, G Hedenstierna, C Rylander
BACKGROUND: In mechanically ventilated, lung injured, patients without spontaneous breathing effort, atelectasis with shunt and desaturation may appear suddenly when ventilator pressures are decreased. It is not known how such a formation of atelectasis is related to transpulmonary pressure (PL ) during weaning from mechanical ventilation when the spontaneous breathing effort is increased. If the relation between PL and atelectasis were known, monitoring of PL might help to avoid formation of atelectasis and cyclic collapse during weaning...
October 23, 2017: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/29057627/genotype-frequencies-of-human-neutrophil-antigen-3-in-the-chinese-zhuang-and-dong-populations
#2
X Liao, H Li, W Jiao, C Zhu, W Wang, Z Mo, Z Yang, Z Zhu
Individuals with the human neutrophil antigen (HNA)-3b/3b type can produce HNA-3a antibodies, which have been reported to cause severe, sometimes fatal transfusion-related acute lung injury (TRALI). Our study aimed to determine the genotype frequency of HNA-3a/3b which will be helpful to estimate the potential risk for forming anti-HNA-3a, the clinically relevant antibody linked to TRALI in two different ethnic groups of southern China. Five hundred unrelated and healthy blood donors (284 male, 216 female; 300 Zhuangs, 200 Dongs) from the Guangxi Zhuang Autonomous Region were simultaneously typed for the HNA-3 allele using a polymerase chain reaction sequence-based typing (PCR-SBT) method...
October 22, 2017: International Journal of Immunogenetics
https://www.readbyqxmd.com/read/29056548/human-induced-pluripotent-stem-cell-derived-lung-progenitor-and-alveolar-epithelial-cells-attenuate-hyperoxia-induced-lung-injury
#3
Mehdi Shafa, Lavinia Iuliana Ionescu, Arul Vadivel, Jennifer J P Collins, Liqun Xu, Shumei Zhong, Martin Kang, Geneviève de Caen, Manijeh Daneshmand, Jenny Shi, Katherine Z Fu, Andrew Qi, Ying Wang, James Ellis, William L Stanford, Bernard Thébaud
BACKGROUND AIMS: Bronchopulmonary dysplasia (BPD), a chronic lung disease characterized by disrupted lung growth, is the most common complication in extreme premature infants. BPD leads to persistent pulmonary disease later in life. Alveolar epithelial type 2 cells (AEC2s), a subset of which represent distal lung progenitor cells (LPCs), promote normal lung growth and repair. AEC2 depletion may contribute to persistent lung injury in BPD. We hypothesized that induced pluripotent stem cell (iPSC)-derived AECs prevent lung damage in experimental oxygen-induced BPD...
October 20, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29056519/an-impedance-based-cell-contraction-assay-using-human-primary-smooth-muscle-cells-and-fibroblasts
#4
Daniel D Bravo, Tania Chernov-Rogan, Jun Chen, Jianyong Wang
INTRODUCTION: Many cell types (including muscle cells and fibroblasts) can contract at physiological conditions and their contractility may change during tissue injury and repair or other diseases such as allergy and asthma. The conventional gel contraction assay is commonly used to monitor the cellular contractility. It is a manual assay and the experiment usually takes hours even days to complete. As its readout is not always accurate and reliable, the gel contraction assay is often used to qualitatively (but not quantitatively) characterize cellular contractility under various conditions...
October 19, 2017: Journal of Pharmacological and Toxicological Methods
https://www.readbyqxmd.com/read/29055810/prenatal-caffeine-ingestion-increases-susceptibility-to-pulmonary-inflammation-in-adult-female-rat-offspring
#5
Han-Xiao Liu, Li-Fang Hou, Ting Chen, Wen Qu, Sha Liu, Hui-Yi Yan, Xiao Wen, Jie Ping
This study aimed to investigate the association between prenatal caffeine ingestion (PCI) and risk of postnatal pulmonary inflammation. Pregnant Wistar rats were administered 60 mg/kg/d caffeine intragastrically from gestational day (GD) 7 to GD 20. The results showed that PCI obviously increased intrauterine growth retardation rate to 39.2% and suppressed weight growth of the offspring. PCI also enhanced the expression of transforming growth factor β, α-smooth muscle actin, interleukin (IL)-1β, and IL-8 in lungs and caused pulmonary interstitial thickening in the offspring...
October 18, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/29054906/shotgun-wound-to-the-leg-strategies-in-managing-acute-arterial-injury-and-bullet-emboli-to-the-heart-and-lungs
#6
Evan Louis Honig, Ryan Fransman, Matthew Alvin, Faris Azar
No abstract text is available yet for this article.
October 20, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29054740/cordycepin-inhibits-lps-induced-acute-lung-injury-by-inhibiting-inflammation-and-oxidative-stress
#7
Jiaji Lei, Youlei Wei, Pengcheng Song, Yongchao Li, Tianze Zhang, Qingjiang Feng, Guangquan Xu
Acute lung injury (ALI) is a common severe clinical syndrome in intensive care unit. Inflammation has been reported to play a critical role in the development of ALI. Cordycepin, an active component isolated from Cordyceps militaris, has been reported to have anti-inflammatory effects. However, the anti-inflammatory effects of cordycepin on LPS-induced ALI remain unclear. Therefore, in the present study, we assessed whether cordycepin could attenuate ALI induced by LPS. The mice were conditioned with cordycepin 1h before intranasal instillation of LPS...
October 17, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29053005/rbcs-homeostatically-bind-mtdna-through-tlr9-to-maintain-quiescence-and-prevent-lung-injury
#8
Meghan J Hotz, Danielle Qing, Michael G S Shashaty, Peggy Zhang, Hilary Faust, Neal Sondheimer, Stefano Rivella, G Scott Worthen, Nilam S Mangalmurti
RATIONALE: Potentially hazardous CpG-containing cell-free mitochondrial DNA (cf-mtDNA) is routinely released into the circulation and is associated with morbidity and mortality in critically ill patients. How the body avoids inappropriate innate immune activation by cf-mtDNA remains unknown. Because red blood cells (RBCs) modulate innate immune responses by scavenging chemokines, we hypothesized that RBCs may attenuate CpG-induced lung inflammation through direct scavenging of CpG-containing DNA...
October 20, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29052820/evaluation-of-different-treatment-protocols-for-combined-injury-induced-lung-injury-in-rabbits
#9
Xiao Bing Li
BACKGROUND: This study aims to evaluate the effectiveness of different treatment regimens on combined injury-induced lung injury. METHODS: Rabbits were subjected to non-lethal closed-chest bilateral lung contusion followed by a 30% total body surface area scald burn. The rabbits were randomly assigned to resuscitation groups that maintained a minimum mean arterial blood pressure of 70 mmHg using one of the following three methods: normal saline plus polygeline injection in a ratio of 1:1 (1:1G), normal saline plus polygeline injection in a ratio of 1:2 (1:2G), and normal saline plus polygeline injection in a ratio of 1:3 (1:3G), After injury, lung injury was assessed using lung wet-to-dry (W/D) weight ratio, enzyme-linked immunosorbent assay, and real-time PCR...
September 2017: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/29052582/idiopathic-pulmonary-fibrosis
#10
REVIEW
Fernando J Martinez, Harold R Collard, Annie Pardo, Ganesh Raghu, Luca Richeldi, Moises Selman, Jeffrey J Swigris, Hiroyuki Taniguchi, Athol U Wells
Idiopathic pulmonary fibrosis (IPF) is a chronic, progressive lung disease characterized by progressive lung scarring and the histological picture of usual interstitial pneumonia (UIP). It is associated with increasing cough and dyspnoea and impaired quality of life. IPF affects ∼3 million people worldwide, with incidence increasing dramatically with age. The diagnostic approach includes the exclusion of other interstitial lung diseases or overlapping conditions and depends on the identification of the UIP pattern, usually with high-resolution CT; lung biopsy might be required in some patients...
October 20, 2017: Nature Reviews. Disease Primers
https://www.readbyqxmd.com/read/29051332/parenchymal-strain-heterogeneity-during-oscillatory-ventilation-why-two-frequencies-are-better-than-one
#11
Jacob Herrmann, Merryn H Tawhai, David W Kaczka
High frequency oscillatory ventilation (HFOV) relies on low tidal volumes cycled at supraphysiologic rates, producing fundamentally different mechanisms for gas transport and exchange compared with conventional mechanical ventilation. Despite the appeal of using low tidal volumes to mitigate the risks of ventilator-induced lung injury (VILI), HFOV has not improved mortality for most clinical indications. This may be due to non-uniform and frequency-dependent distribution of flow throughout the lung. The goal of this study was to compare parenchymal strain heterogeneity during eucapnic HFOV when using oscillatory waveforms that consisted of either a single discrete frequency or two simultaneous frequencies...
October 19, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29050341/geraniol-alleviates-lps-induced-acute-lung-injury-in-mice-via-inhibiting-inflammation-and-apoptosis
#12
Kangfeng Jiang, Tao Zhang, Nannan Yin, Xiaofei Ma, Gan Zhao, Haichong Wu, Changwei Qiu, Ganzhen Deng
Geraniol (GOH), a special type of acyclic monoterpene alcohol, has been widely used to treat many diseases associated with inflammation and apoptosis. Acute lung injury (ALI) is a common clinical disease in humans characterized by pulmonary inflammation and apoptosis. In the present study, we investigated the protective effects of GOH in a mouse model of ALI induced by the intranasal administration of lipopolysaccharide (LPS) and elucidated the underlying molecular mechanisms in RAW 264.7 cells. In vivo, GOH treatment markedly ameliorated pathological injury and pulmonary cell apoptosis and reduced the wet/dry (W/D) weight ratio of lungs, myeloperoxidase (MPO) activity and the production of pro-inflammatory cytokines (IL-1β, IL-6, and TNF-α)...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29050123/-enhance-the-importance-and-knowledge-of-drug-induced-lung-injury
#13
Z J Xu
No abstract text is available yet for this article.
October 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/29049422/thoracic-trauma-now-and-then-a-10-year-experience-from-16-773-severely-injured-patients
#14
Klemens Horst, Hagen Andruszkow, Christian D Weber, Miguel Pishnamaz, Christian Herren, Qiao Zhi, Matthias Knobe, Rolf Lefering, Frank Hildebrand, Hans-Christoph Pape
BACKGROUND AND PURPOSE: Thoracic trauma remains to be a relevant injury to the polytraumatised patient. However, literature regarding how far changes in clinical guidelines for pre- and in-hospital trauma management and diagnostic procedures affect the outcome of multiple injured patients with severe chest injury during a long-term observation period is sparse. METHODS: Multiple traumatised patients (age≥16y) documented in the TraumaRegister DGU® (TR-DGU) from January 1st 2005 to December 31st 2014 with severe chest trauma (AIS≥3) were included in this study...
2017: PloS One
https://www.readbyqxmd.com/read/29047459/protostemonine-effectively-attenuates-lipopolysaccharide-induced-acute-lung-injury-in-mice
#15
Ya-Xian Wu, Hui-Qiong He, Yun-Juan Nie, Yun-He Ding, Lei Sun, Feng Qian
Protostemonine (PSN) is the main anti-inflammatory alkaloid extracted from the roots of Stemona sessilifolia (known as "Baibu" in traditional Chinese medicine). Here, we reported the inhibitory effects of PSN on lipopolysaccharide (LPS)-induced macrophage activation in vitro and LPS-induced acute lung injury in mice. Macrophage cell line RAW264.7 cells and mouse bone marrow-derived macrophages (BMDMs) were treated with PSN (1, 3, 10, 30 and 100 μmol/L) for 0.5 h and then challenged with LPS (0.1 μg/mL) for 24 h...
October 19, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29047214/tanshinone-iia-alleviates-lipopolysaccharide-induced-acute-lung-injury-by-downregulating-trpm7-and-pro-inflammatory-factors
#16
Jie Li, Yan Zheng, Ming-Xian Li, Chu-Wei Yang, Yu-Fei Liu
The study aimed to investigate the role of Tanshinone IIA (Tan IIA) in lipopolysaccharide (LPS)-induced acute lung injury (ALI) in its regulation of TRPM7. Wistar male rats were randomly divided into the normal saline (NS), LPS, knockout (KO) + LPS, low-dose Tan IIA (Tan-L), middle-dose Tan IIA (Tan-M), high-dose Tan IIA (Tan-H) and KO + high-dose Tan IIA (KO + Tan-H) groups. The level of tumour necrosis factor-α (TNF-α), interleukin (IL)-1β, IL-6, TRPM7 protein expression, current density-voltage curve and Ca(2+) concentration were detected through ELISA, Western blotting, electrophysiological experiment and a calcium-imaging technique, respectively...
October 18, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29047088/lung-ischaemia-reperfusion-injury-the-role-of-reactive-oxygen-species
#17
Oleg Pak, Akylbek Sydykov, Djuro Kosanovic, Ralph T Schermuly, Alexander Dietrich, Katrin Schröder, Ralf P Brandes, Thomas Gudermann, Natascha Sommer, Norbert Weissmann
Lung ischaemia-reperfusion injury (LIRI) occurs in many lung diseases and during surgical procedures such as lung transplantation. The re-establishment of blood flow and oxygen delivery into the previously ischaemic lung exacerbates the ischaemic injury and leads to increased microvascular permeability and pulmonary vascular resistance as well as to vigorous activation of the immune response. These events initiate the irreversible damage of the lung with subsequent oedema formation that can result in systemic hypoxaemia and multi-organ failure...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29047084/ros-signaling-in-the-pathogenesis-of-acute-lung-injury-ali-and-acute-respiratory-distress-syndrome-ards
#18
Manuela Kellner, Satish Noonepalle, Qing Lu, Anup Srivastava, Evgeny Zemskov, Stephen M Black
The generation of reactive oxygen species (ROS) plays an important role for the maintenance of cellular processes and functions in the body. However, the excessive generation of oxygen radicals under pathological conditions such as acute lung injury (ALI) and its most severe form acute respiratory distress syndrome (ARDS) leads to increased endothelial permeability. Within this hallmark of ALI and ARDS, vascular microvessels lose their junctional integrity and show increased myosin contractions that promote the migration of polymorphonuclear leukocytes (PMNs) and the transition of solutes and fluids in the alveolar lumen...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29046695/artemisia-argyi-attenuates-airway-inflammation-in-lipopolysaccharide-induced-acute-lung-injury-model
#19
Na-Rae Shin, Sung-Hyeuk Park, Je-Won Ko, Hyung-Won Ryu, Seong-Hun Jeong, Jong-Choon Kim, Dong-Ho Shin, Hoon-Sang Lee, In-Sik Shin
Artemisia argyi is used as a health supplement, tea, and food source in Korea. This study aimed to evaluate the effect of Artemisia argyi (AA) and its active compound, dehydromatricarin A (DA), on the attenuation of airway inflammation in a murine model of lipopolysaccharide (LPS)-induced acute lung injury (ALI). The C57BL/6 mice were administered AA (50 mg/kg or 100 mg/kg) and DA (10 mg/kg or 20 mg/kg) by oral gavage from day 0 to 7 days and LPS treated by intranasal instillation 48 hours before the sacrifice...
September 2017: Laboratory Animal Research
https://www.readbyqxmd.com/read/29045597/delayed-onset-lung-injury-after-balloon-pulmonary-angioplasty-for-chronic-thromboembolic-pulmonary-hypertension-a-case-report
#20
Kazuya Hosokawa, Taishi Yamamoto, Kohtaro Abe, Hiroyuki Tsutsui
No abstract text is available yet for this article.
October 17, 2017: European Heart Journal Cardiovascular Imaging
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