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https://www.readbyqxmd.com/read/29222960/drug-induced-acute-liver-failure-in-children-and-adults-results-of-a-single-center-study-of-128-patients
#1
Harshad Devarbhavi, Mallikarjun Patil, Vishnu Vardhan Reddy, Rajvir Singh, Tarun Joseph, Deepak Ganga
BACKGROUND AND AIMS: Drugs producing acute liver failure (ALF) are uncommon and vary geographically. Here we review the implicated drugs, clinical features, laboratory characteristics and outcome of patients with drug-induced ALF (DIALF). We analyzed the predictors of mortality and their relationship with MELD, Kings College criteria (KCC) and ALFSG prognostic index. METHODS: We identified DIALF patients from our drug-induced liver injury (DILI) registry (1997-2017)...
December 9, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/29209134/metabolically-based-liver-damage-pathophysiology-in-patients-with-urea-cycle-disorders-a-new-hypothesis
#2
Ivan Ivanovski, Miloš Ješić, Ana Ivanovski, Livia Garavelli, Petar Ivanovski
The underlying pathophysiology of liver dysfunction in urea cycle disorders (UCDs) is still largely elusive. There is some evidence that the accumulation of urea cycle (UC) intermediates are toxic for hepatocyte mitochondria. It is possible that liver injury is directly caused by the toxicity of ammonia. The rarity of UCDs, the lack of checking of iron level in these patients, superficial knowledge of UC and an underestimation of the metabolic role of fumaric acid, are the main reasons that are responsible for the incomprehension of the mechanism of liver injury in patients suffering from UCDs...
November 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29209121/fatal-gastrointestinal-histoplasmosis-15-years-after-orthotopic-liver-transplantation
#3
Nikita Agrawal, David Ej Jones, Jessica K Dyson, Tim Hoare, Sharon A Melmore, Stephanie Needham, Nick P Thompson
We report a case of ileo-colonic Histoplasmosis without apparent respiratory involvement in a patient who had previously undergone an orthotopic liver transplant (OLT) for primary biliary cholangitis 15 years earlier. The recipient lived in the United Kingdom, a non-endemic region for Histoplasmosis. However, she had previously lived in rural southern Africa prior to her OLT. The patient presented with iron deficiency anaemia, diarrhoea, abdominal pain and progressive weight loss. She reported no previous foreign travel, however, it later became known that following her OLT she had been on holiday to rural southern Africa...
November 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29199911/an-unexpected-cause-of-liver-cirrhosis-and-cardiomyopathy-in-a-young-man
#4
Ruben Pauwels, Els Vandecasteele, Daniel Devos, Walter Pauwels, Michel De Pauw
Introduction Juvenile hemochromatosis is a rare but severe form of hereditary hemochromatosis that typically presents early in life and can be fatal if left untreated. Case presentation We present the case of a 30-year-old man with a clear symptomatology of juvenile hemochromatosis, but in whom the diagnosis was initially mistaken for alcoholic liver disease because of known excessive use of alcohol, with the consequence that an adequate treatment was postponed. Discussion In this report, we discuss the diagnosis and treatment of juvenile hemochromatosis, focusing on the interaction between hemochromatosis and alcohol induced liver disease and how to differentiate both...
December 4, 2017: Acta Clinica Belgica
https://www.readbyqxmd.com/read/29196155/assessment-of-liver-function-in-pregnant-anemic-women-upon-oral-iron-and-folic-acid-supplementation
#5
Amit Kumar Mani Tiwari, Abbas Ali Mahdi, Sanjay Mishra
Oral iron therapy is the most widely prescribed treatment for iron deficiency anemia. However, oral iron supplementation may also lead to various health problems. The recognition of these physiological variations is essential for the diagnosis of liver diseases during the course of pregnancy. Therefore, the objective of this study was to assess the variations in levels of routine LFTs before and after iron and folic acid treatment. Iron and folic acid was supplemented to 500 anemic women (mild=200, moderate=200, and severe=100) and 100 age matched non-anemic controls daily for 100 days...
November 28, 2017: Journal of Gynecology Obstetrics and Human Reproduction
https://www.readbyqxmd.com/read/29190176/correlation-of-serum-ferritin-levels-with-hepatic-mri-t2-and-liver-iron-concentration-in-nontransfusion-beta-thalassemia-intermediate-patients-a-contemporary-issue
#6
Mehran Karimi, Fatemeh Amirmoezi, Sezaneh Haghpanah, Seyedpouria Ostad, Mehrzad Lotfi, Sepideh Sefidbakht, Shahed Rezaian
BACKGROUND: Beta-thalassemia intermediate is a genetic disease that is milder than beta-thalassemia major. The T2* magnetic resonance imaging (MRI) technique is currently the gold standard for iron load detection. However, it is expensive and needs an expert radiologist to report findings. Therefore, we conducted this study to determine an optimal cut-off value of ferritin in proportion to T2 MRI of liver and measurement of liver iron concentration for early detection of hepatic iron overload in Beta-thalassemia intermediate patients...
November 30, 2017: Pediatric Hematology and Oncology
https://www.readbyqxmd.com/read/29187650/-transhepatic-arterial-embolization-with-superparamagnetic-iron-oxide-and-lipiodol-for-the-treatment-of-vx2-tumor-in-rabbits
#7
Qi Liang, Lingling Deng, Zhichao Feng, Xiao Liu, Jingsong Ding, Pengzhi Hu, Wei Wang
To evaluate the feasibility and therapeutic efficacy of transhepatic arterial embolization with superparamagnetic iron oxide (SPIO) and lipiodol (LIP) for the treatment of VX2 tumor in rabbits.
 Methods: Twenty-four rabbits with hepatic VX2 tumors by surgical implantation were randomly divided into 4 groups and treated with transhepatic arterial embolization of 4 different agents as follows (n=6 each): doxorubicin (DOX) group, DOX-LIP group, SPIO-DOX group, and SPIO-DOX-LIP group. Liver function (AST and ALT) was measured at 0, 1, 3, 5 and 7 d after transhepatic arterial embolization...
November 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/29183916/ceruloplasmin-replacement-therapy-ameliorates-neurological-symptoms-in-a-preclinical-model-of%C3%A2-aceruloplasminemia
#8
Alan Zanardi, Antonio Conti, Marco Cremonesi, Patrizia D'Adamo, Enrica Gilberti, Pietro Apostoli, Carlo Vittorio Cannistraci, Alberto Piperno, Samuel David, Massimo Alessio
Aceruloplasminemia is a monogenic disease caused by mutations in the ceruloplasmin gene that result in loss of protein ferroxidase activity. Ceruloplasmin plays a role in iron homeostasis, and its activity impairment leads to iron accumulation in liver, pancreas, and brain. Iron deposition promotes diabetes, retinal degeneration, and progressive neurodegeneration. Current therapies mainly based on iron chelation, partially control systemic iron deposition but are ineffective on neurodegeneration. We investigated the potential of ceruloplasmin replacement therapy in reducing the neurological pathology in the ceruloplasmin-knockout (CpKO) mouse model of aceruloplasminemia...
November 28, 2017: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/29183205/the-elemental-changes-occurring-in-the-rat-liver-after-exposure-to-peg-coated-iron-oxide-nanoparticles-total-reflection-x-ray-fluorescence-txrf-spectroscopy-study
#9
Katarzyna Matusiak, Agnieszka Skoczen, Zuzanna Setkowicz, Aldona Kubala-Kukus, Ilona Stabrawa, Małgorzata Ciarach, Krzysztof Janeczko, Aleksandra Jung, Joanna Chwiej
The main goal of this study was to evaluate in vivo effects of low dose of PEG-coated magnetic iron oxide nanoparticles (IONPs) on the rat liver. The IONPs was intravenously injected into rats at a dose equaled to 0.03 mg of Fe per 1 kg of an animal body weight. The elemental composition of liver tissue in rats subjected to IONPs action and controls were compared. Moreover, in order to determine the dynamics of nanoparticles (NPs) induced elemental changes, the tissues taken from animals 2 hours, 24 hours, and 7 days from IONPs injection were examined...
November 29, 2017: Nanotoxicology
https://www.readbyqxmd.com/read/29182758/microrna-122-targets-genes-related-to-goose-fatty-liver
#10
Jun Zhang, Qian Wang, Xing Zhao, Laidi Wang, Xingguo Wang, Jian Wang, Biao Dong, Daoqing Gong
MicroRNA-122 (miR-122), a completely conserved, liver-specific miRNA in vertebrates, is essential for the maintenance of liver homeostasis. This 22-nucleotide-length RNA regulates diverse functions such as cholesterol, glucose, and lipid metabolism as well as iron homeostasis and infection of hepatitis C virus (HCV). Landes goose, which has a good, fatty liver, has important significance for us in studying miR-122 function in goose fatty liver. In the current study, we identified miR-122 in goose liver and its expression pattern and target genes...
November 22, 2017: Poultry Science
https://www.readbyqxmd.com/read/29180398/inhibition-of-heme-oxygenase-ameliorates-anemia-and-reduces-iron-overload-in-%C3%AE-thalassemia-mouse-model
#11
Daniel Garcia-Santos, Amel Hamdi, Zuzana Saxova, Carine Fillebeen, Kostas Pantopoulos, Monika Horvathova, Prem Ponka
Thalassemias are a heterogeneous group of red blood cell disorders, considered as major cause of morbidity and mortality among genetic diseases. However, there is still no universally available cure for thalassemias. The underlying basis of thalassemia pathology is the premature apoptotic destruction of erythroblasts causing ineffective erythropoiesis. In β-thalassemia, β-globin synthesis is reduced causing α-globin accumulation. Unpaired globin chains, with heme attached to them, accumulate in thalassemic erythroblasts causing oxidative stress and the premature cell death...
November 27, 2017: Blood
https://www.readbyqxmd.com/read/29180269/dysregulation-of-antioxidant-responses-in-patients-diagnosed-with-concomitant-primary-sclerosing-cholangitis-inflammatory-bowel-disease
#12
Colin T Shearn, David J Orlicky, Dennis R Petersen
OBJECTIVE: Primary Sclerosing Cholangitis (PSC) is a chronic cholestatic liver disease that is characterized by severe peri-biliary tract inflammation and fibrosis, elevated oxidative stress and hepatocellular injury. A hallmark of PSC patients is the concurrent diagnosis of Inflammatory Bowel Disease occurring in approximately 70%-80% of PSC patients (PSC/IBD). The objective of this study was to determine the impact of end stage PSC/IBD on cellular antioxidant responses and the formation of protein carbonylation...
November 24, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/29178028/non-invasive-measurement-of-liver-iron-concentration-using-3-tesla-magnetic-resonance-imaging-validation-against-biopsy
#13
Gaspard d'Assignies, Anita Paisant, Edouard Bardou-Jacquet, Anne Boulic, Elise Bannier, Fabrice Lainé, Martine Ropert, Jeff Morcet, Hervé Saint-Jalmes, Yves Gandon
OBJECTIVES: To evaluate the performance and limitations of the R2* and signal intensity ratio (SIR) methods for quantifying liver iron concentration (LIC) at 3 T. METHODS: A total of 105 patients who underwent a liver biopsy with biochemical LIC (LICb) were included prospectively. All patients underwent a 3-T MRI scan with a breath-hold multiple-echo gradient-echo sequence (mGRE). LIC calculated by 3-T SIR algorithm (LICSIR) and by R2* (LICR2*) were correlated with LICb...
November 24, 2017: European Radiology
https://www.readbyqxmd.com/read/29177784/how-tapeworm-infection-and-consumption-of-a-cd-and-zn-hyperaccumulating-plant-may-affect-cu-fe-and-mn-concentrations-in-an-animal-a-plant-consumer-and-tapeworm-host
#14
Ivana Jankovská, Vladislav Sloup, Jiřina Száková, Jan Magdálek, Stanislava Nechybová, Pavla Peřinková, Iva Langrová
This study evaluated the effects of a hyperaccumulator plant (Arabidopsis halleri), containing surplus of cadmium (Cd) and zinc (Zn) and being an admixture to the rat feed, on concentrations of copper (Cu), iron (Fe), and manganese (Mn) in the tissues of experimental rats infected/uninfected with the tapeworm (Hymenolepis diminuta). Male Wistar rats were divided into three groups (00, P0, and PT); the P0 and PT animals were fed a standard mixture for rats (ST-1) supplemented with the plant A. halleri at a weekly Zn and Cd dosage of 123 and 1 mg, respectively...
November 25, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29177643/iron-overload-in-myelodysplastic-syndromes-mds
#15
REVIEW
Norbert Gattermann
Iron overload (IOL) starts to develop in MDS patients before they become transfusion-dependent because ineffective erythropoiesis suppresses hepcidin production in the liver and thus leads to unrestrained intestinal iron uptake. However, the most important cause of iron overload in MDS is chronic transfusion therapy. While transfusion dependency by itself is a negative prognostic factor reflecting poor bone marrow function, the ensuing transfusional iron overload has an additional dose-dependent negative impact on the survival of patients with lower risk MDS...
November 25, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/29176318/ccl2-is-upregulated-by-decreased-mir-122-expression-in-iron-overload-induced-hepatic-inflammation
#16
Yuxiao Tang, Wentao Jia, Xiaowen Niu, Lusha Wu, Hui Shen, Lina Wang, Ruirui Qi, Changquan Ling, Min Li
BACKGROUND/AIMS: Iron overload (IO) is accompanied by hepatic inflammation. The chemokine (C-C motif) ligand 2 (CCL2) mediates inflammation, and its overexpression is associated with IO. However, whether IO results in CCL2 overexpression in the liver and the underlying mechanisms are unclear. METHODS: We subjected mice to IO by administering intraperitoneal injections of dextran-iron or by feeding mice a 3% dextran-iron diet to observe the effects of IO on miR-122/CCL2 expression through real-time qPCR and Western blot analysis...
November 24, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29173814/absorbed-doses-in-humans-from-188re-rituximab-in-the-free-form-and-bound-to-superparamagnetic-iron-oxide-nanoparticles-biodistribution-study-in-mice
#17
Bakhtiar Azadbakht, Hossein Afarideh, Mohammad Ghannadi-Maragheh, Ali Bahrami-Samani, Hassan Yousefnia
Absorbed doses to human organs from 188Re-Rituximab in the free form and bound to superparamagnetic iron oxide nanoparticles were predicted from results of the radiopharmaceutical biodistribution studies in mice by the RADAR method. Overall, equivalent and effective doses to human organs from the radiopharmaceutical on the nanoparticles were higher because of the enhanced permeability and retention effect. Liver, spleen and kidneys received higher equivalent doses than other organs (5.29, 3.70 and 3.06mSv/MBq, respectively, for the free radiopharmaceutical and 6...
October 23, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/29173198/maternal-dietary-supplementation-with-ferrous-n-carbamylglycinate-chelate-affects-sow-reproductive-performance-and-iron-status-of-neonatal-piglets
#18
D Wan, Y M Zhang, X Wu, X Lin, X G Shu, X H Zhou, H T Du, W G Xing, H N Liu, L Li, Y Li, Y L Yin
Iron-deficiency anemia is a public health concern that frequently occurs in pregnant mammals and neonatal offspring. Ferrous N-carbamylglycinate chelate (Fe-CGly) is a newly designed iron fortifier with proven effects in iron-deficient rats and weanling piglets. However, the effects of this new compound on pregnant mammals are unknown. Therefore, this experiment was conducted to evaluate the effects of Fe-CGly on sow reproductive performance and iron status of both sows and neonatal piglets. A total of 40 large-white sows after second parity were randomly assigned to two groups (n=20)...
November 27, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29169710/dysmetabolic-iron-overload-syndrome-dios
#19
Yves Deugnier, Édouard Bardou-Jacquet, Fabrice Lainé
Dysmetabolic iron overload syndrome (DIOS) corresponds to mild increase in both liver and body iron stores associated with various components of metabolic syndrome in the absence of any identifiable cause of iron excess. It is characterized by hyperferritinemia with normal or moderately increased transferrin saturation, one or several metabolic abnormalities (increased body mass index with android distribution of fat, elevated blood pressure, dyslipidaemia, abnormal glucose metabolism, steatohepatitis), and mild hepatic iron excess at magnetic resonance imaging or liver biopsy...
December 2017: La Presse Médicale
https://www.readbyqxmd.com/read/29165498/tomographic-magnetic-particle-imaging-of-cancer-targeted-nanoparticles
#20
Hamed Arami, Eric Teeman, Alyssa Troksa, Haydin Bradshaw, Katayoun Saatchi, Asahi Tomitaka, Sanjiv Sam Gambhir, Urs O Häfeli, Denny Liggitt, Kannan M Krishnan
Magnetic Particle Imaging (MPI) is an emerging, whole body biomedical imaging technique, with sub-millimeter spatial resolution and high sensitivity to a biocompatible contrast agent consisting of an iron oxide nanoparticle core and a biofunctionalized shell. Successful application of MPI for imaging of cancer depends on the nanoparticles (NPs) accumulating at tumors at sufficient levels relative to other sites. NPs' physiochemical properties such as size, crystallographic structure and uniformity, surface coating, stability, blood circulation time and magnetization determine the efficacy of their tumor accumulation and MPI signal generation...
November 22, 2017: Nanoscale
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