keyword
MENU ▼
Read by QxMD icon Read
search

ARDS model

keyword
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
#1
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/28811618/assessment-of-the-role-of-ageing-and-non-ageing-factors-in-death-from-non-communicable-diseases-based-on-a-cumulative-frequency-model
#2
Liu Hui
To quantify the effects of ageing and non-ageing factors, a characterization of the effects of ageing, genetic, and exogenous variables on 12 major non-communicable diseases was evaluated using a model assessing cumulative frequency of death and survival by age group from dead and surviving populations based on mortality statistics. Indices (0-1) of the roles of ageing (ARD), genetics (GRD) and exogenous (ERD) variables in deaths due to disease were established, and the sum of ARD, GRD and ERD was 1 (value of each indices was <1)...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28808944/effect-of-ha330-resin-directed-hemoadsorption-on-a-porcine-acute-respiratory-distress-syndrome-model
#3
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/28795334/mathematical-modeling-of-extracorporeal-co2-removal-therapy-a-validation-carried-out-on-ten-pigs
#4
Simon Habran, Thomas Desaive, Philippe Morimont, Bernard Lambermont, Pierre Dauby
The extracorporeal CO2 removal device (ECCO2RD) is used in clinics to treat patients suffering from respiratory failures like acute respiratory distress syndrome (ARDS) or chronic obstructive pulmonary disease (COPD). The aim of this device is to decarboxylate blood externally with low blood flow. A mathematical model is proposed to describe protective ventilation, ARDS, and an extracorporeal CO2 removal therapy (ECCO2RT). The simulations are compared with experimental data carried out on ten pigs. The results show a good agreement between the mathematical simulations and the experimental data, which provides a nice validation of the model...
August 9, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/28794232/resolvin-d1-improves-the-resolution-of-inflammation-via-activating-nf-%C3%AE%C2%BAb-p50-p50-mediated-cyclooxygenase-2-expression-in-acute-respiratory-distress-syndrome
#5
Ye Gao, Huawei Zhang, Lingchun Luo, Jing Lin, Dan Li, Sisi Zheng, Hua Huang, Songfan Yan, Jingxiang Yang, Yu Hao, Hui Li, Fang Gao Smith, Shengwei Jin
Acute respiratory distress syndrome (ARDS) is a severe illness characterized by uncontrolled inflammation. The resolution of inflammation is a tightly regulated event controlled by endogenous mediators, such as resolvin D1 (RvD1). Cyclooxygenase-2 (COX-2) has been reported to promote inflammation, along with PGE2, in the initiation of inflammation, as well as in prompting resolution, with PGD2 acting in the later phase of inflammation. Our previous work demonstrated that RvD1 enhanced COX-2 and PGD2 expression to resolve inflammation...
August 9, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28775380/rage-inhibition-reduces-acute-lung-injury-in-mice
#6
Raiko Blondonnet, Jules Audard, Corinne Belville, Gael Clairefond, Jean Lutz, Damien Bouvier, Laurence Roszyk, Christelle Gross, Marilyne Lavergne, Marianne Fournet, Loic Blanchon, Caroline Vachias, Christelle Damon-Soubeyrand, Vincent Sapin, Jean-Michel Constantin, Matthieu Jabaudon
The receptor for advanced glycation end-products (RAGE) is involved in inflammatory response during acute respiratory distress syndrome (ARDS). Growing body of evidence support strategies of RAGE inhibition in experimental lung injury, but its modalities and effects remain underinvestigated. Anesthetised C57BL/6JRj mice were divided in four groups; three of them underwent orotracheal instillation of acid and were treated with anti-RAGE monoclonal antibody (mAb) or recombinant soluble RAGE (sRAGE), acting as a decoy receptor...
August 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28765493/variability-of-tidal-volume-in-patient-triggered-mechanical-ventilation-in-ards
#7
Sophie Perinel-Ragey, Loredana Baboi, Claude Guérin
BACKGROUND: Limiting tidal volume (VT) in patients with ARDS may not be achieved once patient-triggered breaths occur. Furthermore, ICU ventilators offer numerous patient-triggered modes that work differently across brands. We systematically investigated, using a bench model, the effect of patient-triggered modes on the size and variability of VT at different breathing frequencies (f), patient effort, and ARDS severity. METHODS: We used a V500 Infinity ICU ventilator connected to an ASL 5000 lung model whose compliance was mimicking mild, moderate, and severe ARDS...
August 1, 2017: Respiratory Care
https://www.readbyqxmd.com/read/28763489/temporal-dynamics-of-in-situ-fiber-adherent-bacterial-community-under-ruminal-acidotic-conditions-determined-by-16s-rrna-gene-profiling
#8
Renee M Petri, Poulad Pourazad, Ratchaneewan Khiaosa-Ard, Fenja Klevenhusen, Barbara U Metzler-Zebeli, Qendrim Zebeli
Subacute rumen acidotic (SARA) conditions are a consequence of high grain feeding. Recent work has shown that the pattern of grain feeding can significantly impact the rumen epimural microbiota. In a continuation of these works, the objective of this study was to determine the role of grain feeding patterns on the colonization and associated changes in predicted functional properties of the fiber-adherent microbial community over a 48 h period. Eight rumen-cannulated Holstein cows were randomly assigned to interrupted or continuous 60%-grain challenge model (n = 4 per model) to induce SARA conditions...
2017: PloS One
https://www.readbyqxmd.com/read/28760550/the-role-of-c-ebp%C3%AE-phosphorylation-in-modulating-membrane-phospholipids-repairing-in-lps-induced-human-lung-bronchial-epithelial-cells
#9
Shiyu Shu, Yan Xu, Ling Xie, Yufang Ouyang
Acute lung injury/acute respiratory distress syndrome (ALI/ARDS) is a common critical emergency with high mortality in clinical practice. The key mechanism of ALI/ARDS is that the excessive inflammatory response damages the integrity of alveolar and bronchial cell membrane and thus affects their basic function. Phospholipids are the main component of cell membranes. Phospholipase A2 (PLA2), which catalyzes the cleavage of membrane phospholipids, is the most important inflammatory mediator of ALI. However, clara cell secretory protein 1 (CCSP1), an endogenous PLA2 inhibitor can increase the self-defense of membrane phospholipids...
July 28, 2017: Gene
https://www.readbyqxmd.com/read/28758151/the-effect-of-diet-induced-serum-hypercholesterolemia-on-the-surfactant-system-and-the-development-of-lung-injury
#10
Scott Milos, Joshua Qua Hiansen, Brandon Banaschewski, Yi Y Zuo, Li-Juan Yao, Lynda A McCaig, James Lewis, Cory M Yamashita, Ruud A W Veldhuizen
Acute respiratory distress syndrome (ARDS) is a pulmonary disorder associated with alterations to the pulmonary surfactant system. Recent studies showed that supra-physiological levels of cholesterol in surfactant contribute to impaired function. Since cholesterol is incorporated into surfactant within the alveolar type II cells which derives its cholesterol from serum, it was hypothesized that serum hypercholesterolemia would predispose the host to the development of lung injury due to alterations of cholesterol content in the surfactant system...
September 2016: Biochemistry and Biophysics Reports
https://www.readbyqxmd.com/read/28731431/association-between-cholesterol-exposure-and-neuropathological-findings-the-act-study
#11
Brianne M Bettcher, M Colin Ard, Bruce R Reed, Andreana Benitez, Amanda Simmons, Eric B Larson, Josh A Sonnen, Thomas J Montine, Ge Li, C Dirk Keene, Paul K Crane, Dan Mungas
We characterized the relationship between late life cholesterol exposure and neuropathological outcomes in a community-based, older adult cohort. Adult Changes in Thought (ACT) is a cohort study that enrolls consenting, randomly selected, non-demented people aged ≥65 from a healthcare delivery system. We used late life HDL and total cholesterol lab values from Group Health computerized records, and calculated HDL and non-HDL levels. We evaluated neuropathological outcomes of Alzheimer's disease, cerebral amyloid angiopathy, vascular brain injury, and Lewy body disease...
2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28730609/discrepancy-between-experiment-and-theoretical-predictions-of-the-adiabaticity-of-ti-ch3oh
#12
Brendan Sweeney, Shaun Gerald Ard, David McDonald Ii, Oscar Martinez, Albert Viggiano, Nicholas Shuman
The reaction between Ti+ and methanol (CH3OH) is a model system for competition between activation of C-O, C-H, and O-H bonds and of the role of excited electronic pathways in catalytic processes. Herein, we use experimental kinetics, quantum chemical calculations, and statistical modeling to identify the critical features of the reaction's potential energy surface. Experimental kinetics data between 300 and 600 K shows the reaction largely proceeds through C-O bond activation, yielding TiOH+ and TiO+. Products of the O-H activation pathway, TiOCH2+ and TiOCH3+ are minor, while C-H bond activation is not observed at thermal energies...
July 20, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28724884/effects-of-zinc-finger-protein-a20-on-lipopolysaccharide-lps-induced-pulmonary-inflammation-anti-inflammatory-mediators-in-an-acute-lung-injury-acute-respiratory-distress-syndrome-rat-model
#13
Ding-Qian Wu, Hong-Bo Wu, Mao Zhang, Jian-An Wang
BACKGROUND The aim of this study was to investigate the effects of zinc finger protein A20 on lipopolysaccharide (LPS)-induced pulmonary inflammation/anti-inflammatory mediators in an acute lung injury/acute respiratory distress syndrome (ALI/ARDS) rat model. MATERIAL AND METHODS Forty-eight ALI/ARDS rats were selected and assigned into normal saline (NS) (injected with NS), LPS (injected with LPS), LPS-C1 (injected with pEGFP-C1, NS and LPS), and A20 groups (injected with pEGFP-C1-A20, NS, and LPS). The wet/dry (W/D) ratio of rat lung tissues and total protein concentration and the number of neutrophils in bronchoalveolar lavage fluid (BALF) were detected...
July 20, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28708421/relationship-between-race-and-the-effect-of-fluids-on-long-term-mortality-after-acute-respiratory-distress-syndrome-secondary-analysis-of-the-nhlbi-fluid-and-catheter-treatment-trial
#14
Sarah E Jolley, Catherine L Hough, Gilles Clermont, Douglas Hayden, Suqin Hou, David Schoenfeld, Nicholas L Smith, Boyd Taylor Thompson, Gordon R Bernard, Derek C Angus
RATIONALE: Short-term follow up in the Fluid and Catheter Treatment Trial (FACTT) suggested differential mortality by race with conservative fluid management, but no significant interaction. OBJECTIVE: In a post-hoc analysis of FACTT including one-year follow up, we sought to estimate long-term mortality by race and test for an interaction between fluids and race. METHODS: Post-hoc analysis of FACTT and the Economic Analysis of Pulmonary Artery Catheters (EAPAC) study (included 655 of the 1000 FACTT patients with near complete one-year follow up)...
July 14, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28701843/incidence-proportion-of-acute-cor-pulmonale-in-patients-with-acute-respiratory-distress-syndrome-subjected-to-lung-protective-ventilation-a-systematic-review-and-meta-analysis
#15
Saurabh Kumar Das, Nang Sujali Choupoo, Priyam Saikia, Amitabh Lahkar
INTRODUCTION: Reported incidence of acute cor pulmonale (ACP) in patients with acute respiratory distress syndrome (ARDS) varies from 10% to 84%, despite being subjected to lung protective ventilation according to the current guidelines. The objective of this review is to find pooled cumulative incidence of ACP in patients with ARDS undergoing lung protective ventilation. MATERIALS AND METHODS: We searched MEDLINE, EMBASE, Cochrane Library, KoreaMed, LILACS, and WHO Clinical Trial Registry...
June 2017: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/28684908/%C3%AE-bisabolol-loaded-lipid-core-nanocapsules-reduce-lipopolysaccharide-induced-pulmonary-inflammation-in-mice
#16
Ana Paula L D'Almeida, Maria T Pacheco de Oliveira, Éverton T de Souza, Diego de Sá Coutinho, Bianca T Ciambarella, Cristiano R Gomes, Thatiana Terroso, Sílvia S Guterres, Adriana R Pohlmann, Patrícia Mr Silva, Marco A Martins, Andressa Bernardi
Acute respiratory distress syndrome (ARDS) is a severe clinical condition of respiratory failure due to an intense inflammatory response with different etiologies. Despite all efforts, therapy remains limited, and ARDS is still associated with high mortality and morbidity. Plants can provide a vast source of active natural products for the discovery of new drugs. α-bisabolol (α-bis), a constituent of the essential oil from chamomile, has elicited pharmacological interest. However, the molecule has some limitations to its biological application...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28678521/restoration-of-megalin-mediated-clearance-of-alveolar-protein-as-a-novel-therapeutic-approach-for-acute-lung-injury
#17
Christine U Vohwinkel, Yasmin Buchäckert, Hamza M Al-Tamari, Luciana C Mazzocchi, Holger K Eltzschig, Konstantin Mayer, Rory E Morty, Susanne Herold, Werner Seeger, Soni S Pullamsetti, István Vadász
Acute respiratory distress syndrome (ARDS) constitutes a significant disease burden with regard to both morbidity and mortality. Current therapies are mostly supportive and do not address the underlying pathophysiologic mechanisms. Removal of protein-rich alveolar edema - a clinical hallmark of ARDS - is critical for survival. Here, we describe a TGFβ-triggered mechanism, in which megalin, the primary mediator of alveolar protein transport, is negatively regulated by GSK3β, with protein phosphatase 1 (PP1) and nuclear inhibitor of PP1 being involved in the signaling cascade...
July 5, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28676373/middle-age-exacerbates-acute-respiratory-distress-syndrome-in-a-double-hit-murine-model
#18
Guillaume Voiriot, Damien Contou, Jeanne Tran Van Nhieu, Valerie Amsellem, Elisabeth Marcos, Mehdi Latiri, Serge Adnot, Bernard Maitre, Armand Mekontso Dessap
RATIONALE: In a recent systematic review, aging has been identified as the only factor independently associated with mortality during human acute respiratory distress syndrome (ARDS). We explored this age-dependent severity in a clinically relevant double hit murine ARDS model. METHODS: Young adult (Y, 10-12weeks) and middle-old (O, 12-13months) male C57BL6 mice underwent an aspiration of Escherichia coli lipopolysaccharide (LPS) or control saline vehicle. Twenty hours later, four groups of mice were sacrificed [Y(control), O(control), Y(LPS) and O(LPS)]...
October 1, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28664496/efficient-model-calibration-method-based-on-phase-experiments-for-anaerobic-anoxic-nitrifying-a2n-two-sludge-process
#19
Hongliang Dai, Wenliang Chen, Zheqin Dai, Xiang Li, Xiwu Lu
A systematic calibration and validation procedure for the complex mechanistic modeling of anaerobic-anoxic/nitrifying (A2N) two-sludge system is needed. An efficient method based on phase experiments, sensitivity analysis, and genetic algorithm is proposed here for model calibration. Phase experiments (anaerobic phosphorus release, aerobic nitrification, and anoxic denitrifying phosphate accumulation) in an A2N sequencing batch reactor (SBR) were performed to reflect the process conditions accurately and improve the model calibration efficiency...
June 30, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28662370/early-exposure-to-recommended-calorie-delivery-in-the-intensive-care-unit-is-associated-with-increased-mortality-in-patients-with-acute-respiratory-distress-syndrome
#20
Sarah J Peterson, Omar B Lateef, Sally Freels, Liam McKeever, Giamila Fantuzzi, Carol A Braunschweig
BACKGROUND: The Intensive Nutrition in Acute Lung Injury: Clinical Trial (INTACT), designed to evaluate outcomes of calorie delivery from acute respiratory distress syndrome (ARDS) diagnosis through hospital discharge, was stopped due to higher mortality in the intervention group. Post hoc analysis found timing and dose of calorie delivery influenced mortality. The objective of this retrospective cohort study was to determine if early vs late calorie exposure changed the hazard of death among a larger sample of patients with ARDS...
June 1, 2017: JPEN. Journal of Parenteral and Enteral Nutrition
keyword
keyword
86044
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"