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Liver injury

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https://www.readbyqxmd.com/read/28738497/oeanolic-acid-protects-against-the-hepatotoxicity-of-d-galactosame-plus-endotoxin-in-mice
#1
Xiao-Li Wan, Yuan-Fu Lu, Shang-Fu Xu, Qin Wu, Jie Liu
Oleanolic acid (OA) is a triterpenoid contained in many herbal medicines. The aim of this study was to investigate the protective effect of OA against D-galactosame plus lipopolysaccharides (D-GalN/LPS)-induced acute liver injury and the underling mechanisms. Mice were randomly divided into normal control with vehicles only (corn oil), D-GalN/LPS only (700mg/10μg/kg, ip), OA-po (200μmol/kg in corn oil, po) plus D-GalN/LPS, and OA-sc (50μmol/kg in 2% tween 80, sc) plus D-GalN/LPS groups. OA pretreatment was conducted twice daily for 4 consecutive days...
July 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28738354/review-of-extracorporeal-membrane-oxygenation-and-dialysis-based-liver-support-devices-for-the-use-of-nephrologists
#2
Tamim Hamdi, Biff F Palmer
Acute kidney injury in the intensive care unit (ICU) is a manifestation of an underlying severe illness that commonly involves other organ systems. Pulmonary, cardiac, and hepatic failures are the most prevalent. This article provides a simplified review of the technical aspects of extracorporeal cardiopulmonary and liver support devices used in the adult ICU patient, as well as a summary of the most relevant and up-to-date clinical evidence that supports their use.
July 22, 2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/28737815/isofraxidin-a-coumarin-component-improves-high-fat-diet-induced-hepatic-lipid-homeostasis-disorder-and-macrophage-inflammation-in-mice
#3
Jian Li, Xiaofei Li, Zhike Li, Lu Zhang, Yonggang Liu, Hong Ding, Shanye Yin
Isofraxidin (IF) is a coumarin compound produced in the functional foods Siberian ginseng and Apium graveolens. The first objective of this study was to investigate the protective effects and putative methods of IF in combating lipotoxicity in vitro and in vivo. Oleic acid was used to induce lipid turbulence in human hepatoma cells (HepG2). Alterations in triglyceride metabolism, inflammation and oxidative status were monitored. Results show that IF mainly reduced triglyceride accumulation, TNF-α release and ROS activation in metabolic disordered cells...
July 24, 2017: Food & Function
https://www.readbyqxmd.com/read/28737682/cadmium-handling-toxicity-and-molecular-targets-involved-during-pregnancy-lessons-from-experimental-models
#4
REVIEW
Tania Jacobo-Estrada, Mitzi Santoyo-Sánchez, Frank Thévenod, Olivier Barbier
Even decades after the discovery of Cadmium (Cd) toxicity, research on this heavy metal is still a hot topic in scientific literature: as we wrote this review, more than 1440 scientific articles had been published and listed by the PubMed.gov website during 2017. Cadmium is one of the most common and harmful heavy metals present in our environment. Since pregnancy is a very particular physiological condition that could impact and modify essential pathways involved in the handling of Cd, the prenatal life is a critical stage for exposure to this non-essential element...
July 22, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28736303/the-good-and-the-bad-collagens-of-fibrosis-their-role-in-signaling-and-organ-function
#5
M A Karsdal, S H Nielsen, D J Leeming, L L Langholm, M J Nielsen, T Manon-Jensen, A Siebuhr, N S Gudmann, S Rønnow, J M Sand, S J Daniels, J H Mortensen, D Schuppan
Usually the dense extracellular structure in fibrotic tissues is described as extracellular matrix (ECM) or simply as collagen. However, fibrosis is not just fibrosis, which is already exemplified by the variant morphological characteristics of fibrosis due to viral versus cholestatic, autoimmune or toxic liver injury, with reticular, chicken wire and bridging fibrosis. Importantly, the overall composition of the ECM, especially the relative amounts of the many types of collagens, which represent the most abundant ECM molecules and which centrally modulate cellular functions and physiological processes, changes dramatically during fibrosis progression...
July 20, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/28736244/the-use-of-stable-isotopes-in-the-study-of-human-pathophysiology
#6
Evelina Charidemou, Tom Ashmore, Julian L Griffin
The growing prevalence of metabolic diseases including fatty liver disease and Type 2 diabetes has increased the emphasis on understanding metabolism at the mechanistic level and how it is perturbed in disease. Metabolomics is a continually expanding field that seeks to measure metabolites in biological systems during a physiological stimulus or a genetic alteration. Typically, metabolomics studies provide total pool sizes of metabolites rather than dynamic flux measurements. More recently there has been a resurgence in approaches that use stable isotopes (e...
July 20, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28736023/protective-effects-of-geniposide-on-hepatic-ischemia-reperfusion-injury
#7
Y-P Rong, H-T Huang, J-S Liu, L Wei
BACKGROUND: Geniposide (GEN) is the major ingredient of Gardenia jasminoides Ellis, which has anti-inflammatory and anti-apoptotic activities and is widely used to treat ischemia disease. Inflammation and apoptosis play an important role in hepatic ischemia/reperfusion (I/R) injury. The current study was conducted to explore the effects of geniposide on hepatic I/R injury and its potential molecular mechanism in mice. METHODS: Fifty Sprague-Dawley rats were randomly divided into 5 groups: the sham group (sham), the hepatic I/R injury group (IRI) and the GEN groups (low, middle, and high)...
July 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28736022/use-of-nanoice-for-procurement-achieves-better-cooling-of-liver-grafts
#8
J D Reyes, F G Jalikis, L C Olson, M Yeh, M I Montenovo
BACKGROUND: Rapid cooling at procurement after cross-clamping has been the cornerstone of organ preservation. NanoICE is a new form of ice that has emerged in the food industry and is providing more efficient cooling and preservation than regular ice. We hypothesize that the use of NanoICE will accelerate the cooling process of the allograft and will be able to maintain a steady low temperature without causing any significant histologic damage. METHODS: In this randomized pilot study, 14 pigs were used to study the liver core/surface cooling in a non-survival organ procurement operation...
July 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28736012/sent-liver-grafts-do-not-have-a-detrimental-impact-on-post-transplant-outcome
#9
D Dondossola, M Cavenago, B Antonelli, P Reggiani, U Maggi, G Rossi, L Caccamo
INTRODUCTION: "Sent livers" (SL) (interregional allocated organs) are considered extended donor criteria grafts. These grafts influence post-transplant outcome. In our donor allocation program, the number of allocated SLs is increasing. The aim of our study is to provide data supporting the possibility to enlarge the use of SLs through adequate donor-to-recipient matching. METHODS: A retrospective analysis was carried out from our prospective-collected database during 2014...
July 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28735528/lipids-evergreen-autofluorescent-biomarkers-for-the-liver-functional-profiling
#10
Anna Cleta Croce, Giovanni Bottiroli
Depending on their chemical nature, lipids can be classified in two main categories: hydrophilic, greatly contributing to membrane composition and subcellular organelle compartmentalization, and hydrophobic, mostly triglycerides, greatly enrolled in the storage and production of energy. In both cases, some lipid molecules can be involved as signaling agents in the regulation of metabolism and protective or damaging pathways in responses to harmful stimuli. These events could affect in particular the liver, because of its central role in the maintenance of lipid homeostasis...
June 1, 2017: European Journal of Histochemistry: EJH
https://www.readbyqxmd.com/read/28735525/oxygen-tension-independent-protection-against-hypoxic-cell-killing-in-rat-liver-by-low-sodium
#11
Andrea Ferrigno, Laura G Di Pasqua, Clarissa Berardo, Veronica Siciliano, Plinio Richelmi, Mariapia Vairetti
The role of Na+ in hypoxic injury was evaluated by a time-course analysis of damage in isolated livers perfused with N2-saturated buffer containing standard (143 mM) or low (25 mM) Na+ levels. Trypan blue uptake was used to detect non-viable cells. Under hypoxia with standard-Na+, trypan blue uptake began at the border between pericentral areas and periportal regions and increased in the latter zone; using a low-Na+ buffer, no trypan blue zonation occurred but a homogenous distribution of dye was found associated with sinusoidal endothelial cell (SEC) staining...
May 30, 2017: European Journal of Histochemistry: EJH
https://www.readbyqxmd.com/read/28735097/protecting-the-heart-through-mk2-modulation-toward-a-role-in-diabetic-cardiomyopathy-and-lipid-metabolism
#12
REVIEW
Matthieu Ruiz, Lise Coderre, Bruce Gordon Allen, Christine Des Rosiers
Various signaling pathways have been identified in the heart as important players during development, physiological adaptation or pathological processes. This includes the MAPK families, particularly p38MAPK, which is involved in several key cellular processes, including differentiation, proliferation, apoptosis, inflammation, metabolism and survival. Disrupted p38MAPK signaling has been associated with several diseases, including cardiovascular diseases (CVD) as well as diabetes and its related complications...
July 19, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28734962/analyzing-the-hepatoprotective-effect-of-the-swertia-cincta-burkillextract-against-anit-induced-cholestasis-in-rats-by-modulating-the-expression-of-transporters-and-metabolic-enzymes
#13
Lili Xu, Tingting Sheng, Xiaolong Liu, Tong Zhang, Zhengtao Wang, Han Han
ETHNOPHARMACOLOGICAL RELEVANCE: Swertia cincta Burkill was traditionally used for treating jaundice and various types of chronic and acute hepatitis in Yunnan and Tibet in China for hundreds of years. This study aims to investigate the protective effect of S. cincta Burkill (ESC) extract on alpha-naphthylisothiocyanate (ANIT)-induced hepatotoxicity and cholestasis in rats. MATERIALS AND METHODS: Crude extracts were prepared using 90% ethanol and by vacuum drying...
July 19, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28734947/platelet-derived-growth-factor-receptor-alpha-contributes-to-human-hepatic-stellate-cell-proliferation-and-migration
#14
Alexander Kikuchi, Tirthadipa Pradhan-Sundd, Sucha Singh, Shanmugam Nagarajan, Nick Loizos, Satdarshan Monga
Platelet-derived growth factor receptor alpha (PDGFRα), a tyrosine kinase receptor, is up-regulated in hepatic stellate cells (HSCs) during chronic liver injury. HSCs mediate hepatic fibrosis through their activation from a quiescent state partially in response to pro-fibrotic growth factors. HSC activation entails enhanced expression of pro-fibrotic genes, increase in proliferation, and increase in motility, which facilitates migration within the hepatic lobule. We show co-localization of PDGFRα in murine carbon tetrachloride, bile duct ligation (BDL), and 0...
July 19, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28734938/hepatitis-e-virus-infection-and-acute-non-traumatic-neurological-injury-a-prospective-multicentre-study
#15
Harry R Dalton, Jeroen J J van Eijk, Pascal Cintas, Richie G Madden, Catherine Jones, Glynn W Webb, Benjamin Norton, Julie Pique, Suzanne Lutgens, Nikki Devooght-Johnson, Kathy Woolson, John Baker, Maria Saunders, Liz Househam, James Griffiths, Florence Abravanel, Jacques Izopet, Nassim Kamar, Nens van Alfen, Baziel G M van Engelen, Jeremy G Hunter, Annemiek A van der Eijk, Richard P Bendall, Brendan N Mclean, Bart C Jacobs
BACKGROUND AND AIMS: HEV has been associated with a number of neurological syndromes, but causality has not yet been established. AIM: to explore the relationship between HEV and neurological illness by prospective HEV-testing of patients presenting with acute non-traumatic neurological injury. METHODS: 464 consecutive patients presenting to hospital with acute non-traumatic neurological illnesses were tested for HEV by serology and PCR from 4 centres in the UK, France and the Netherlands...
July 19, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28733685/trypanosoma-brucei-growth-control-by-tnf-in-mammalian-host-is-independent-of-the-soluble-form-of-the-cytokine
#16
Gilles Vanwalleghem, Yannick Morias, Alain Beschin, David E Szymkowski, Etienne Pays
Infection of C57Bl/6 mice by pleomorphic African trypanosomes Trypanosoma brucei and T. congolense is characterized by parasitemia waves coupled with the production of systemic levels of TNF. This cytokine is known to control T. brucei growth, but also to contribute to tissue damage, shortening the survival time of infected mice. Using a dominant-negative version of TNF to discriminate between the effects of the membrane-form versus the soluble form of TNF, we show that the second form is involved in neither parasite control nor induction of liver injury...
July 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28733538/the-abnormality-of-thyroid-hormones-in-patients-with-type-a-hepatic-encephalopathy
#17
Lin Wang, Wanyou Yu, Wukui Cao, Wei Lu
Abnormality of thyroid hormones in liver diseases is common, but data is lacking in patients with type A hepatic encephalopathy (HE). The present study was aimed to determine whether there was an abnormality in thyroid hormones among patients with type A HE. We measured the levels of thyroid hormones in 36 acute liver failure (ALF) patients with type A HE and in 29 acute liver injury patients (international normalized ratio, INR ≥ 1.5) without encephalopathy as control. The clinical parameters associated with abnormality of thyroid hormones were evaluated...
June 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28733206/omics-based-identification-of-the-combined-effects-of-idiosyncratic-drugs-and-inflammatory-cytokines-on-the-development-of-drug-induced-liver-injury
#18
J Jiang, K Mathijs, L Timmermans, S M Claessen, A Hecka, J Weusten, R Peters, J H van Delft, J C S Kleinjans, D G J Jennen, T M de Kok
The mechanisms of idiosyncratic drug-induced hepatotoxicity remain largely unclear. It has demonstrated that the drug idiosyncrasy is potentiated in the context of inflammation and intracellular ceramides may play a role in this process. To study the mechanisms, HepG2 cells were co-treated with high and low doses of three idiosyncratic (I) and three non-idiosyncratic (N) compounds, with (I+ and N+) or without (I- and N-) a cytokine mix. Microarray, lipidomics and flow cytometry were performed to investigate the genome-wide expression patterns, the intracellular ceramide levels and the induction of apoptosis...
July 18, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28732487/alcohol-use-disorders-and-associated-chronic-disease-a-national-retrospective-cohort-study-from-france
#19
Michaël Schwarzinger, Sophie Pascale Thiébaut, Sylvain Baillot, Vincent Mallet, Jürgen Rehm
BACKGROUND: Evidence on diseases caused by or associated with alcohol use disorders (AUDs) has been based on two meta-analyses including rather dated studies. The objective of this contribution was to estimate the risks of all-cause mortality and alcohol-attributable disease categories depending on a diagnosis of AUDs in a national sample for France. METHODS: In a national retrospective cohort study on all inpatient acute and rehabilitation care patients in Metropolitan France 2008-2012 (N = 26,356,361), AUDs and other disease categories were identified from all discharge diagnoses according to standard definitions, and we relied on in-hospital death for mortality (57...
July 21, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28732019/rate-of-hepatitis-c-viral-clearance-by-human-livers-in-human-patients-liver-transplantation-modeling-primary-infection-and-implications-for-studying-entry-inhibition
#20
Michael G Hughes, William W Tucker, Sreelatha Reddy, Michael E Brier, David Koch, Craig J McClain, Colleen B Jonsson, Nobuyuki Matoba, Donghoon Chung
To better understand the dynamics of early hepatitis C virus (HCV) infection, we determined how rapidly non-cirrhotic HCV-uninfected liver allografts clear HCV from the circulation of cirrhotic HCV-infected patients at the time of transplantation but before administration of immunosuppression. Specifically, we characterized serum HCV kinetics during the first 90 min of reperfusion for 19 chronically HCV-infected patients transplanted with an HCV-uninfected liver by measuring serum viral load immediately prior to reperfusion (t = 0) and then every 15 min for a total of 90 min (t = 90)...
2017: PloS One
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