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cecal ligation and. puncture

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https://www.readbyqxmd.com/read/28822346/comparative-study-of-single-combination-use-of-huang-lian-jie-du-decoction-and-berberine-on-their-protection-on-sepsis-induced-acute-liver-injury-by-nmr-metabolic-profiling
#1
Yan Lv, Junsong Wang, Dingqiao Xu, Shanting Liao, Pei Li, Qian Zhang, Minghua Yang, Lingyi Kong
Sepsis is a serious clinical disease with a high mortality rate all around the world. Liver organ dysfunction is an important sign for the severity and outcome of sepsis in patients. In this study, (1)H NMR-based metabolomics approach and biochemical assays were applied to investigate the metabolic profiling for cecal ligation and puncture (CLP) induced acute liver injury, the therapeutical effect of single/combination use of Huang-Lian-Jie-Du decoction (HLJDD) and berberine, and the interaction of them. Metabolomics analysis revealed significant perturbations in livers of septic rats, which could be ameliorated by HLJDD, berberine and their combination treatment...
August 1, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28821165/mirna-21-has-effects-to-protect-kidney-injury-induced-by-sepsis
#2
Dian Fu, Jie Dong, Ping Li, Chaopeng Tang, Wen Cheng, Zhenyu Xu, Wenquan Zhou, Jingping Ge, Chen Xia, Zhengyu Zhang
To investigate the miRNA-21 over-expression in the acute kidney injury induced by sepsis, we developed a sepsis induced in vitro model by lip polysaccharide (LPS) and in vovo model by cecal ligation and puncture (CLP) surgery. LPS or CLP surgery induced kidney cell apoptosis increasing. However, the kidney injury indexes of miRNA groups which were transfected with miRNA-21 were significantly suppressed. In further study, the relative proteins expressions were evaluated to explain the miRNA-21 mechanism to improve sepsis induced kidney cell apoptosis...
August 14, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28806219/selective-activation-of-basal-forebrain-cholinergic-neurons-attenuates-polymicrobial-sepsis-induced-inflammation-via-the-cholinergic-anti-inflammatory-pathway
#3
Qian Zhai, Dengming Lai, Ping Cui, Rui Zhou, Qixing Chen, Jinchao Hou, Yunting Su, Libiao Pan, Hui Ye, Jing-Wei Zhao, Xiangming Fang
OBJECTIVES: Basal forebrain cholinergic neurons are proposed as a major neuromodulatory system in inflammatory modulation. However, the function of basal forebrain cholinergic neurons in sepsis is unknown, and the neural pathways underlying cholinergic anti-inflammation remain unexplored. DESIGN: Animal research. SETTING: University research laboratory. SUBJECTS: Male wild-type C57BL/6 mice and ChAT-ChR2-EYFP (ChAT) transgenic mice...
August 10, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28804554/effect-of-omiganan-on-colonic-anastomosis-healing-in-a-rat-model-of-peritonitis
#4
Teresa Lorenzi, Maria Michela Cappelletti Trombettoni, Roberto Ghiselli, Francesca Paolinelli, Rosaria Gesuita, Oscar Cirioni, Mauro Provinciali, Wojciech Kamysz, Elzbieta Kamysz, Cristiano Piangatelli, Mario Castellucci Md, Mario Guerrieri, Manrico Morroni
BACKGROUND: This study investigates the effects of the antimicrobial cationic peptide omiganan-alone and combined with the antibiotic imipenem-on colonic anastomosis healing in presence of intraperitoneal sepsis induced in a rodent model of cecal ligation and puncture (CLP). METHODS: Forty male Wistar rats were divided into 5 groups of 8 animals. Group 1 (control group) underwent laparotomy and cecal mobilization and the next day received left colon anastomosis...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28804545/hydrogen-sulfide-prevents-diaphragm-weakness-in-cecal-ligation-puncture-induced-sepsis-by-preservation-of-mitochondrial-function
#5
Hai-Xia Zhang, Jun-Ming Du, Zhong-Nuo Ding, Xiao-Yan Zhu, Lai Jiang, Yu-Jian Liu
Mitochondrial dysfunction plays an important role in the pathogenesis of diaphragm weakness during sepsis. Recently, hydrogen sulfide (H2S), a gaseous transmitter endogenously generated by cystathionine-β-synthase (CBS), cystathionine-γ-lyase (CSE) and 3-mercaptopyruvate sulfurtransferase (3-MST), is found to improve mitochondrial function. The present study aimed to examine whether H2S synthases are expressed in the diaphragm, and investigated the effect of H2S donor in sepsis-induced diaphragm weakness and its relationship with mitochondrial function...
2017: American Journal of Translational Research
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
#6
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/28800541/an-experimental-study-of-the-protective-effect-of-simvastatin-on-sepsis-induced-myocardial-depression-in-rats
#7
Yu Wang, Lichun Zhang, Xin Zhao, Wenping Yang, Rong Zhang
Many patients with sepsis died of heart failure caused by sepsis-induced myocardial depression. Patients with cardiovascular diseases treated by statins have a lower incidence and mortality of sepsis, although the mechanisms remain elusive. To investigate the protective effect of simvastatin on sepsis-induced myocardial depression and to explore possible mechanisms of action. Thirty six adult male Wistar rats were pretreated with simvastatin (0.2μg/g, q12h) for one week before cecal ligation and puncture (CLP)...
August 8, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28796387/ulinastatin-inhibited-sepsis-induced-spinal-inflammation-to-alleviate-peripheral-neuromuscular-dysfunction-in-an-experimental-rat-model-of-neuromyopathy
#8
Fei Xie, Su Min, Jingyuan Chen, Jun Yang, Xin Wang
Sepsis initiates a neuroinflammatory cascade that contributes to spinal cord inflammation and behavioral impairment, and Toll-like receptor 4 (TLR4) is an important mediator of this cascade. In this study, we tested the hypothesis that ulinastatin (ULI) inhibits sepsis-induced spinal inflammation to alleviate peripheral neuromuscular dysfunction through the TLR4/MyD88/NF-κB signaling pathway. Muscular function, spinal cord water content, and cytokine levels of spinal cord were tested in TLR4-inhibited rats subjected to cecal ligation and puncture (CLP)...
August 10, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28796194/a-murine-model-of-persistent-inflammation-immune-suppression-and-catabolism-syndrome
#9
Amanda M Pugh, Nicholas J Auteri, Holly S Goetzman, Charles C Caldwell, Vanessa Nomellini
Critically ill patients that survive sepsis can develop a Persistent Inflammation, Immunosuppression, and Catabolism Syndrome (PICS), which often leads to extended recovery periods and multiple complications. Here, we utilized a cecal ligation and puncture (CLP) method in mice with the goal of creating a model that concurrently displays all the characteristics of PICS. We observed that, after eight days, mice that survive the CLP develop persistent inflammation with significant myelopoiesis in the bone marrow and spleen...
August 10, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28795668/-immune-intervention-of-human-umbilical-cord-mesenchymal-stem-cells-on-sepsis-rats
#10
Hewei Zhang, Xiaoxu Cui, Tao Fang, Qiang Fu
OBJECTIVE: To investigate the effect of human umbilical cord mesenchymal stem cells (UC-MSCs) on immune cells and inflammatory factors in septic rats. METHODS: 184 male Sprague-Dawley (SD) rats were divided into normal control group (n = 8), sham operation group (n = 48), sepsis model group (n = 64), and UC-MSCs treatment group (n = 64). An animal model of sepsis was produced by cecal ligation and puncture (CLP). In the UC-MSCs treatment group 1 mL UC-MSCs (2×10(6)/mL) were injected intraperitoneally at 1 hour after the model establishment; the sham operation group and the sepsis model group were given the same amount of saline...
August 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28793286/il-33-attenuates-sepsis-by-inhibiting-il-17-receptor-signaling-through-upregulation-of-socs3
#11
Ran Lv, Jinning Zhao, Min Lei, Dongju Xiao, Yijin Yu, Junran Xie
BACKGROUND/AIMS: Sepsis is a systemic inflammatory response during infection. There are limited therapeutic options for sepsis patients. Interleukin (IL)-33 has been reported recently with a beneficial effect in mouse sepsis. METHODS: In this study, we initiated a clinical study to measure serum levels of pro-inflammatory cytokines including IL-33 in sepsis patients. Next, we employed cecal ligation and puncture (CLP) to study the role of IL-33 during sepsis. To further dissect the molecular mechanism, we used in vivo knockout models and in vitro knockdown murine embryonic fibroblasts (MEFs) to investigate the cross-talk between IL-33 and IL-17 signaling, and to identify the potential downstream mediators...
August 9, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28793032/protein-from-hevea-brasiliensis-hev-b-13-latex-attenuates-systemic-inflammatory-response-and-lung-lesions-in-rats-with-sepsis
#12
L A Araújo, P R Melo-Reis, F Mrue, C M Gomes, M A P Oliveira, H M Silva, M M Alves, N J Silva-Júnior
Sepsis induces a severe systemic inflammatory response that may result in multiple organ dysfunction and death. Studies using a protein derived from natural Hevea brasiliensis (rubber tree) latex, denominated Hev b 13, have demonstrated important anti-inflammatory effects, but no data have been published regarding its effects on sepsis. The aim of this study was to investigate the effects of Hev b 13 on the inflammatory response and lung lesions of septal rats. Male Wistar rats were submitted to cecal ligation and puncture (CLP), randomized into groups and treated with subcutaneously administered doses of 0...
July 27, 2017: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/28780798/-effect-of-liangge-powder-on-expression-of-inflammatory-mediators-and-hepatic-and-renal-function-in-rats-with-sepsis
#13
P P Zhang, Z J Li, D Q Wang
Objective: To investigate the effect of Liangge powder on the expression of inflammatory mediators and hepatic and renal function in rats with sepsis via a preliminary analysis. Methods: A total of 195 Wistar rats were randomly divided into sham-operation group (15 rats) , model group (90 rats) , and treatment group (90 rats) using a random number table, and according to the time point after modeling, the model group and the treatment group were further divided into 24, 48, and 72 hour subgroups, with 30 rats in each subgroup...
May 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/28777197/elabela-improves-cardio-renal-outcome-in-fatal-experimental-septic-shock
#14
David Coquerel, Frédéric Chagnon, Xavier Sainsily, Lauralyne Dumont, Alexandre Murza, Jérôme Côté, Robert Dumaine, Philippe Sarret, Éric Marsault, Dany Salvail, Mannix Auger-Messier, Olivier Lesur
OBJECTIVES: Apelin-13 was recently proposed as an alternative to the recommended β-adrenergic drugs for supporting endotoxin-induced myocardial dysfunction. Since Apelin-13 signals through its receptor (Apelin peptide jejunum) to exert singular inotropic/vasotropic actions and to optimize body fluid balance, this candidate pathway might benefit septic shock management. Whether the newly discovered ELABELA (ELA), a second endogenous ligand of the Apelin peptide jejunum receptor highly expressed in the kidney, further improves cardio-renal impairment remains unknown...
August 2, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28770018/brain-derived-neurotrophic-factor-attenuates-septic-myocardial-dysfunction-via-enos-no-pathway-in-rats
#15
Ni Zeng, Junmei Xu, Weifeng Yao, Suobei Li, Wei Ruan, Feng Xiao
Sepsis-induced myocardial dysfunction increases mortality in sepsis, yet the underlying mechanism is unclear. Brain-derived neurotrophic factor (BDNF) has been found to enhance cardiomyocyte function, but whether BDNF has a beneficial effect against septic myocardial dysfunction is unknown. Septic shock was induced by cecal ligation and puncture (CLP). BDNF was expressed in primary cardiomyocytes, and its expression was significantly reduced after sepsis. In rats with sepsis, a sharp decline in survival was observed after CLP, with significantly reduced cardiac BDNF expression, enhanced myocardial fibrosis, elevated oxidative stress, increased myocardial apoptosis, and decreased endothelial nitric oxide (NO) synthase (eNOS) and NO...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28768726/cutting-edge-2b4-mediated-coinhibition-of-cd4-t-cells-underlies-mortality-in-experimental-sepsis
#16
Ching-Wen Chen, Rohit Mittal, Nathan J Klingensmith, Eileen M Burd, Cox Terhorst, Greg S Martin, Craig M Coopersmith, Mandy L Ford
Sepsis is a leading cause of death in the United States, but the mechanisms underlying sepsis-induced immune dysregulation remain poorly understood. 2B4 (CD244, SLAM4) is a cosignaling molecule expressed predominantly on NK cells and memory CD8(+) T cells that has been shown to regulate T cell function in models of viral infection and autoimmunity. In this article, we show that 2B4 signaling mediates sepsis lymphocyte dysfunction and mortality. 2B4 expression is increased on CD4(+) T cells in septic animals and human patients at early time points...
August 2, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28765908/serca1-attenuates-diaphragm-relaxation-and-uptake-rate-of-serca-in-rats-with-acute-sepsis
#17
Jianyou Zhang, Hui Liu, Shitong Li, Jin Wu, Jianhong Sun
The present study aimed to investigate the effects of acute sepsis on diaphragm contractility and relaxation, via examining the Ca2+‑uptake function of sarco/endoplasmic reticulum Ca2+ adenosine triphosphatase (SERCA), and the protein levels of SERCA1, SERCA2 and the ryanodine receptor (RyR) of the sarcoplasmic reticulum (SR). A sepsis rat model was established through cecal ligation and puncture (CLP). A total of 6 and 12 h following CLP, the isometric contractile and relaxation parameters of the diaphragm were measured...
August 2, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28750040/oral-administration-of-live-or-heat-killed-candida-albicans-worsened-cecal-ligation-and-puncture-sepsis-in-a-murine-model-possibly-due-to-an-increased-serum-1%C3%A2-3-%C3%AE-d-glucan
#18
Wimonrat Panpetch, Naraporn Somboonna, Dewi Embong Bulan, Jiraphorn Issara-Amphorn, Malcolm Finkelman, Navaporn Worasilchai, Ariya Chindamporn, Tanapat Palaga, Somying Tumwasorn, Asada Leelahavanichkul
Candida albicans is the most common fungus in the human intestinal microbiota but not in mice. To make a murine sepsis model more closely resemble human sepsis and to explore the role of intestinal C. albicans, in the absence of candidemia, in bacterial sepsis, live- or heat-killed C. albicans was orally administered to mice at 3h prior to cecal ligation and puncture (CLP). A higher mortality rate of CLP was demonstrated with Candida-administration (live- or heat-killed) prior to CLP. Fecal Candida presented only in experiments with live-Candida administration...
2017: PloS One
https://www.readbyqxmd.com/read/28747734/reducing-animal-use-with-a-biotelemetry-enhanced-murine-model-of-sepsis
#19
Anthony Lewis, Brian Zuckerbraun, John Griepentrog, Xianghong Zhang, Matthew Rosengart
Animal models of sepsis exhibit considerable variability in the temporal development of the physiologic response, which reduces the power of studies, particularly if interventions are tested at arbitrary time points. We developed a biotelemetry-based model of cecal ligation and puncture (CLP) that standardizes the testing of time-sensitive therapies to specific criteria of physiologic deterioration. In this study we seek to further define the variability in physiologic response to CLP sepsis and conduct a cost analysis detailing the potential for reducing animal usage...
July 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28715505/the-clinical-and-immunological-performance-of-28-days-survival-model-of-cecal-ligation-and-puncture-in-humanized-mice
#20
Krzysztof Laudanski, Natalia Lapko, Mateusz Zawadka, Benjamin X Zhou, Gwenn Danet-Desnoyers, George S Worthen
Sepsis triggers a coordinated and thorough immune system response with long-term unfavorable sequelae after the initial insult. Long-term recovery from sepsis has garnered increasing attention recently, but a lack of suitable animal models impairs progress in this area. Our study, therefore, aimed to address the performance of the immune system in a survivable model of sepsis (cecal ligation and sepsis; CLP) for up to 28 d after the initial injury in humanized mice. Our model mimics human sepsis with weight loss and post-sepsis hypothermia...
2017: PloS One
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