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hypoxic hepatitis

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https://www.readbyqxmd.com/read/27910780/naringenin-ameliorates-doxorubicin-toxicity-and-hypoxic-condition-in-dalton-s-lymphoma-ascites-tumor-mouse-model-evidence-from-electron-paramagnetic-resonance-imaging
#1
Venkatesan Kathiresan, Swathika Subburaman, Arun Venkatesh Krishna, Mathivanan Natarajan, Gandhidasan Rathinasamy, Kumaresan Ganesan, Murugesan Ramachandran
Doxorubicin (DOX) is a well-known cytotoxic agent used extensively as a chemotherapeutic drug to eradicate a wide variety of human cancers. Reactive oxygen species (ROS)-mediated oxidative stress during DOX treatment can induce cardiac, renal, and hepatic toxicities, which can constrain its use as a potential cytotoxic agent. The present work investigates the antioxidant potential of naringenin (NAR) against DOXinduced toxicities of a Dalton's lymphoma ascites (DLA) tumor-bearing mouse model. Mice were randomized into four groups: a negative control, positive control, DOX (2...
2016: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/27882135/protective-effect-of-enos-overexpression-against-ischemia-reperfusion-injury-in-small-for-size-liver-transplantation
#2
Bo Zhang, Qiu-Hua Liu, Cui-Jie Zhou, Ming-Zheng Hu, Hai-Xin Qian
Ischemia/reperfusion (I/R) injury can occur during small-for-size liver transplantation, resulting in delayed graft function and decreased long-term graft survival. The aim of the present study was to evaluate the effects of genetic overexpression of endothelial nitric oxide synthase (eNOS) in protecting hepatocytes against I/R injury in a rat model of small-for-size liver transplantation. L02 liver cells were transfected with the eNOS gene using an adenovirus (Ad-eNOS). eNOS expression was detected using quantitative polymerase chain reaction and western blot analysis...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27866088/is-ketogenic-diet-treatment-hepatotoxic-for-children-with-intractable-epilepsy
#3
Nur Arslan, Orkide Guzel, Engin Kose, Unsal Yılmaz, Pınar Kuyum, Betül Aksoy, Tansel Çalık
PURPOSE: Long-term ketogenic diet (KD) treatment has been shown to induce liver steatosis and gallstone formation in some in vivo and clinical studies. The aim of this retrospective study was to evaluate the hepatic side effects of KD in epileptic children. METHOD: A total of 141 patients (mean age: 7.1±4.1years [2-18 years], 45.4% girls), receiving KD at least one year for intractable epilepsy due to different diagnoses (congenital brain defects, GLUT-1 deficiency, West syndrome, tuberous sclerosis, hypoxic brain injury, etc...
November 13, 2016: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/27777895/hypoxic-hepatitis-a-review-and-clinical-update
#4
Najeff Waseem, Po-Hung Chen
Hypoxic hepatitis (HH), also known as ischemic hepatitis or shock liver, is characterized by a massive, rapid rise in serum aminotransferases resulting from reduced oxygen delivery to the liver. The most common predisposing condition is cardiac failure, followed by circulatory failure as occurs in septic shock and respiratory failure. HH does, however, occur in the absence of a documented hypotensive event or shock state in 50% of patients. In intensive care units, the incidence of HH is near 2.5%, but has been reported as high as 10% in some studies...
September 28, 2016: Journal of Clinical and Translational Hepatology
https://www.readbyqxmd.com/read/27702890/hypoxia-activated-cytotoxic-agent-tirapazamine-enhances-hepatic-artery-ligation-induced-killing-of-liver-tumor-in-hbx-transgenic-mice
#5
Wei-Hsiang Lin, Shiou-Hwei Yeh, Kun-Huei Yeh, Kai-Wei Chen, Ya-Wen Cheng, Tung-Hung Su, Ping Jao, Lin-Chun Ni, Pei-Jer Chen, Ding-Shinn Chen
Transarterial chemoembolization (TACE) is the main treatment for intermediate stage hepatocellular carcinoma (HCC) with Barcelona Clinic Liver Cancer classification because of its exclusive arterial blood supply. Although TACE achieves substantial necrosis of the tumor, complete tumor necrosis is uncommon, and the residual tumor generally rapidly recurs. We combined tirapazamine (TPZ), a hypoxia-activated cytotoxic agent, with hepatic artery ligation (HAL), which recapitulates transarterial embolization in mouse models, to enhance the efficacy of TACE...
October 18, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27678302/adiponectin-protects-the-rats-liver-against-chronic-intermittent-hypoxia-induced-injury-through-amp-activated-protein-kinase-pathway
#6
Wenxiao Ding, Qiang Zhang, Yanbin Dong, Ning Ding, Hanpeng Huang, Xianji Zhu, Sean Hutchinson, Xingya Gao, Xilong Zhang
This study was performed to assess the effect of chronic intermittent hypoxia (CIH) on the liver, the associated mechanisms and the potential therapeutic roles of adiponectin (Ad). Sixty rats were randomly assigned to four groups: the normal control (NC), NC and Ad supplement (NC + Ad), CIH, and CIH and Ad supplement (CIH + Ad) groups. The rats in the CIH and CIH + Ad groups were exposed to a hypoxic environment for 4 months. Rats in the NC + Ad and CIH + Ad groups were also treated with an intravenous injection of Ad (10 ug), twice a week...
September 28, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27665516/accessing-3d-microtissue-metabolism-lactate-and-oxygen-monitoring-in-hepatocyte-spheroids
#7
Andreas Weltin, Steffen Hammer, Fozia Noor, Yeda Kaminski, Jochen Kieninger, Gerald A Urban
3D hepatic microtissues, unlike 2D cell cultures, retain many of the in-vivo-like functionalities even after long-term cultivation. Such 3D cultures are increasingly applied to investigate liver damage due to drug exposure in toxicology. However, there is a need for thorough metabolic characterization of these microtissues for mechanistic understanding of effects on culture behaviour. We measured metabolic parameters from single human HepaRG hepatocyte spheroids online and continuously with electrochemical microsensors...
July 28, 2016: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/27599394/hepatic-dysfunction-a-common-occurrence-in-severely-injured-patients
#8
A Saloojee, D L Skinner, E Loots, T C Hardcastle, D J J Muckart
BACKGROUND: Hepatic dysfunction (HD) is a common finding in critically ill patients. The underlying pathophysiological process is one of either cholestasis or hypoxic liver injury (HLI). Using serum bilirubin, our study aimed to determine the incidence of HD in a critically ill trauma population, identify risk factors and analyse the impact on outcomes. METHODS: A retrospective observational study was performed on all patients admitted to the Level 1 Trauma Unit ICU at Inkosi Albert Luthuli Central Hospital in Durban, South Africa (IALCH) from 01/01/2012 until 31/12/2012...
September 1, 2016: Injury
https://www.readbyqxmd.com/read/27563453/the-prognostic-role-of-lactate-dehydrogenase-serum-levels-in-patients-with-hepatocellular-carcinoma-who-are-treated-with-sorafenib-the-influence-of-liver-fibrosis
#9
Masayoshi Yada, Masayuki Miyazaki, Kenta Motomura, Akihide Masumoto, Makoto Nakamuta, Motoyuki Kohjima, Rie Sugimoto, Yoshifusa Aratake, Nobuhiko Higashi, Shusuke Morizono, Shinichiro Takao, Naoki Yamashita, Takeaki Satoh, Shinsaku Yamashita, Masami Kuniyoshi, Kazuhiro Kotoh
BACKGROUND: Serum lactate dehydrogenase (LDH) levels could be a prognostic factor for sorafenib-treated patients with several types of solid tumor because it reflects hypoxic circumstances in aggressive tumors. For hepatocellular carcinoma (HCC), however, the prognostic role of LDH has been controversial. Liver fibrosis can potentially cause hypoxia in the liver, which has not been previously studied in the patients with advanced HCC. Thus, we aimed to analyze the prognostic role of LDH based on the degree of fibrosis...
August 2016: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/27513071/isolated-hypoxic-hepatic-perfusion-with-high-dose-chemotherapy-in-patients-with-unresectable-liver-metastases-of-uveal-melanoma-results-from-two-experienced-centres
#10
Eleonora M de Leede, Mark C Burgmans, Ellen Kapiteijn, Gre P M Luyten, Martine J Jager, Fred G J Tijl, Henk H Hartgrink, Dirk J Grünhagen, Joost Rothbarth, Cornelis J H van de Velde, Cornelis Verhoef, Alexander L Vahrmeijer
Uveal melanoma patients have a poor survival after the diagnosis of metastatic disease. Isolated hepatic perfusion (IHP) was developed to treat patients with unresectable metastases confined to the liver. This retrospective analysis focuses on treatment characteristics, complications, toxicity and survival after IHP. Patients with uveal melanoma metastases confined to the liver treated with IHP in two experienced hepato-pancreatic-biliary surgery centres (Erasmus MC Cancer Institute and Leiden University Medical Center) were included...
August 10, 2016: Melanoma Research
https://www.readbyqxmd.com/read/27440271/preclinical-benefit-of-hypoxia-activated-intraarterial-therapy-with-evofosfamide-in-liver-cancer
#11
Rafael Duran, Sahar Mirpour, Vasily Pekurovsky, Shanmugasundaram Ganapathy-Kanniappan, Cory F Brayton, Toby C Cornish, Boris Gorodetski, Juvenal Reyes, Julius Chapiro, Rüdiger E Schernthaner, Constantine Frangakis, MingDe Lin, Jessica D Sun, Charles P Hart, Jean-Francois Geschwind
PURPOSE: To evaluate safety and characterize anticancer efficacy of hepatic hypoxia-activated intraarterial therapy (HAIAT) with evofosfamide in a rabbit model. EXPERIMENTAL DESIGN: VX2-tumor-bearing rabbits were assigned to 4 intraarterial therapy (IAT) groups (n=7/group): 1) saline (control); 2) evofosfamide (Evo); 3) doxorubicin-Lipiodol emulsion followed by embolization with 100-300μm beads (conventional, cTACE); or 4) cTACE and evofosfamide (cTACE+Evo). Blood samples were collected pre-IAT and 1/2/7/14 days post-IAT...
July 20, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/27440164/soluble-hemojuvelin-in-transfused-and-untransfused-thalassaemic-subjects
#12
Elisa Ferro, Angela Di Pietro, Giuseppa Visalli, Basilia Piraino, Carmelo Salpietro, Maria Angela La Rosa
OBJECTIVE: The hemojuvelin-bone morphogenetic protein axis is the principal iron-dependent mechanism of hepcidin regulation. The determination of soluble hemojuvelin (sHJV) levels could allow for a better understanding of the pathophysiological mechanisms of hepcidin regulation in thalassaemia. METHOD: We have assessed sHJV in 45 transfused and 15 untransfused thalassaemic patients in comparison with 15 healthy subjects, evaluating its relationships with some parameters of iron overload, anaemia and erythropoiesis...
July 21, 2016: European Journal of Haematology
https://www.readbyqxmd.com/read/27436690/hypoxia-of-the-growing-liver-accelerates-regeneration
#13
Erik Schadde, Christopher Tsatsaris, Marzena Swiderska-Syn, Stefan Breitenstein, Martin Urner, Roman Schimmer, Christa Booy, Birgit Roth Z'graggen, Roland H Wenger, Donat R Spahn, Martin Hertl, Stuart Knechtle, Ann Mae Diehl, Martin Schläpfer, Beatrice Beck-Schimmer
BACKGROUND: After portal vein ligation of 1 side of the liver, the other side regenerates at a slow rate. This slow growth may be accelerated to rapid growth by adding a transection between the 2 sides, i.e., performing portal vein ligation and parenchymal transection. We found that in patients undergoing portal vein ligation and parenchymal transection, portal vein hyperflow in the regenerating liver causes a significant reduction of arterial flow due to the hepatic arterial buffer response...
July 16, 2016: Surgery
https://www.readbyqxmd.com/read/27429052/plasma-biomarkers-to-study-mechanisms-of-liver-injury-in-patients-with-hypoxic-hepatitis
#14
James L Weemhoff, Benjamin L Woolbright, Rosalind E Jenkins, Mitchell R McGill, Matthew R Sharpe, Jody C Olson, Daniel J Antoine, Steven C Curry, Hartmut Jaeschke
BACKGROUND & AIMS: Hypoxic hepatitis is a clinical condition precipitated by prolonged periods of oxygen deprivation to the liver. It can have several underlying causes. Despite its prevalence in critically ill patients, which can reach upwards of 10%, very little is known about the mechanisms of injury. Thus, we set out to measure previously identified circulating biomarkers in an attempt to describe mechanisms of injury following hypoxic hepatitis. METHODS: Plasma from patients diagnosed with hypoxic hepatitis was collected for this study...
July 18, 2016: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/27411453/hepatic-perfusion-alterations-in-septic-shock-patients-impact-of-early-goal-directed-therapy
#15
Xi-Wen Zhang, Jian-Feng Xie, Ai-Ran Liu, Ying-Zi Huang, Feng-Mei Guo, Cong-Shan Yang, Yi Yang, Hai-Bo Qiu
BACKGROUND: Early goal-directed therapy (EGDT) has become an important therapeutic management in early salvage stage of septic shock. However, splenic organs possibly remained hypoperfused and hypoxic despite fluid resuscitation. This study aimed to evaluate the effect of EGDT on hepatic perfusion in septic shock patients. METHODS: A prospective observational study was carried out in early septic shock patients who were admitted to Intensive Care Unit within 24 h after onset and who met all four elements of the EGDT criteria after treatment with the standard EGDT procedure within 6 h between December 1, 2012 and November 30, 2013...
July 20, 2016: Chinese Medical Journal
https://www.readbyqxmd.com/read/27392655/outcome-and-features-of-acute-kidney-injury-complicating-hypoxic-hepatitis-at-the-medical-intensive-care-unit
#16
Andreas Drolz, Thomas Horvatits, Kevin Roedl, Karoline Rutter, Katharina Staufer, Dominik G Haider, Christian Zauner, Gottfried Heinz, Peter Schellongowski, Stefan Kluge, Michael Trauner, Valentin Fuhrmann
BACKGROUND: Hypoxic hepatitis (HH) is a frequent and potentially life-threatening event typically occurring in critically ill patients as a consequence of hemodynamic impairment. While acute kidney injury (AKI) has been well described in patients with acute liver failure, incidence and outcome of AKI accompanying HH are unclear. The aim of this study was to assess incidence, clinical implications and outcome of AKI and renal replacement therapy (RRT) in critically ill patients with HH...
December 2016: Annals of Intensive Care
https://www.readbyqxmd.com/read/27391896/patterns-and-causes-of-liver-involvement-in-acute-dengue-infection
#17
Samitha Fernando, Ananda Wijewickrama, Laksiri Gomes, Chameera T Punchihewa, S D P Madusanka, Harsha Dissanayake, Chandima Jeewandara, Hemantha Peiris, Graham S Ogg, Gathsaurie Neelika Malavige
BACKGROUND: Liver involvement in acute dengue infection is frequently observed and sometimes leads to acute liver failure, with fatal outcomes. Many factors are thought to contribute to liver dysfunction, including hypoxic injury due to decreased perfusion, direct damage by the virus and immune mediated injury. In this study, we sought to identify the pattern in the change in liver enzymes throughout the illness and its association with the degree of viraemia, onset and extent of plasma leakage and inflammatory mediators...
2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27377671/synthesis-and-biological-evaluation-of-iodoglucoazomycin-i-gaz-an-azomycin-glucose-adduct-with-putative-applications-in-diagnostic-imaging-and-radiotherapy-of-hypoxic-tumors
#18
Piyush Kumar, Hassan R H Elsaidi, Bohdarianna Zorniak, Evelyn Laurens, Jennifer Yang, Veena Bacchu, Monica Wang, Leonard I Wiebe
Iodoglucoazomycin (I-GAZ; N-(2-iodo-3-(6-O-glucosyl)propyl)-2-nitroimidazole), a non-glycosidic nitroimidazole-6-O-glucose adduct, was synthesized, radioiodinated, and evaluated as a substrate of glucose transporter 1 (GLUT1) for radiotheranostic (therapy+diagnostic) management of hypoxic tumors. Nucleophilic iodination of the nosylate synthon of I-GAZ followed by deprotection afforded I-GAZ in 74 % overall yield. I-GAZ was radioiodinated via 'exchange' labeling using [(123/131) I]iodide (50-70 % RCY) and then purified by Sep-Pak™ (>96 % RCP)...
August 5, 2016: ChemMedChem
https://www.readbyqxmd.com/read/27362333/endothelial-notch-signaling-is-essential-to-prevent-hepatic-vascular-malformations-in-mice
#19
Henar Cuervo, Corinne M Nielsen, Douglas A Simonetto, Linda Ferrell, Vijay H Shah, Rong A Wang
UNLABELLED: Liver vasculature is crucial for adequate hepatic functions. Global deletion of Notch signaling in mice results in liver vascular pathologies. However, whether Notch in endothelium is essential for hepatic vascular structure and function remains unknown. To uncover the function of endothelial Notch in the liver, we deleted Rbpj, a transcription factor mediating all canonical Notch signaling, or Notch1 from the endothelium of postnatal mice. We investigated the hepatic vascular defects in these mutants...
October 2016: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/27290579/prognostic-impact-of-icg-pdr-in-patients-with-hypoxic-hepatitis-at-the-intensive-care-unit
#20
T Horvatits, N Kneidinger, A Drolz, K Roedl, K Rutter, S Kluge, V Fuhrmann
No abstract text is available yet for this article.
December 2015: Intensive Care Medicine Experimental
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