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https://www.readbyqxmd.com/read/29792720/-experimental-processing-of-corrosion-casts-of-large-animal-organs
#1
R Pálek, V Liška, L Eberlová, H Mírka, M Svoboda, S Haviar, M Emingr, O Brzoň, P Mik, V Třeška
INTRODUCTION: Corrosion casts (CCs) are used for the visualization and assessment of hollow structures. CCs with filled capillaries enable (with the help of imaging methods) to obtain data for mathematical organ perfusion modelling. As the processing is more difficult in case of organs with greater volume of the vasculature, mainly organs from small animals have been cast up to now. The aim of this study was to optimize the protocol of corrosion casting of different organs of pig. Porcine organs are relatively easily accessible and frequently used in experimental medicine...
2018: Rozhledy V Chirurgii: Měsíčník Československé Chirurgické Společnosti
https://www.readbyqxmd.com/read/29789564/establishing-quasi-steady-state-operations-of-microphysiological-systems-mps-using-tissue-specific-metabolic-dependencies
#2
Christian Maass, Matthew Dallas, Matthew E LaBarge, Michael Shockley, Jorge Valdez, Emily Geishecker, Cynthia L Stokes, Linda G Griffith, Murat Cirit
Microphysiological systems (MPS), consisting of tissue constructs, biomaterials, and culture media, aim to recapitulate relevant organ functions in vitro. MPS components are housed in fluidic hardware with operational protocols, such as periodic complete media replacement. Such batch-like operations provide relevant nutrients and remove waste products but also reset cell-secreted mediators (e.g. cytokines, hormones) and potentially limit exposure to drugs (and metabolites). While each component plays an essential role for tissue functionality, MPS-specific nutrient needs are not yet well-characterized nor utilized to operate MPSs at more physiologically-relevant conditions...
May 22, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29789011/novel-phenoxazinones-as-potent-agonist-of-ppar-%C3%AE-design-synthesis-molecular-docking-and-in-vivo-studies
#3
David I Ugwu, Uchechukwu C Okoro, Narendra K Mishra, Sunday N Okafor
BACKGROUND: The use of statin, a 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitor for the treatment of dyslipidemia has been associated with dose limiting hepatoxicity, mytotoxicity and tolerability due to myalgias thereby necessitating the synthesis of new drug candidates for the treatment of lipid disorder. METHODS: The reaction of appropriate benzenesulphonamide with substituted phenoxazinone in the presence of phenylboronic acid gave the targeted compounds...
May 22, 2018: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29786563/cell-based-liver-therapies-past-present-and-future
#4
REVIEW
Valeria Iansante, Anil Chandrashekran, Anil Dhawan
Liver transplantation represents the standard treatment for people with an end-stage liver disease and some liver-based metabolic disorders; however, shortage of liver donor tissues limits its availability. Furthermore, whole liver replacement eliminates the possibility of using native liver as a possible target for future gene therapy in case of liver-based metabolic defects. Cell therapy has emerged as a potential alternative, as cells can provide the hepatic functions and engraft in the liver parenchyma...
July 5, 2018: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/29778472/effects-of-ad-libitum-milk-replacer-feeding-and-butyrate-supplementation-on-behavior-immune-status-and-health-of-holstein-calves-in-the-postnatal-period
#5
C Gerbert, D Frieten, C Koch, G Dusel, K Eder, T Stefaniak, J Bajzert, P Jawor, A Tuchscherer, H M Hammon
Animal welfare in dairy calf husbandry depends on calf rearing and is probably improved by intensive milk feeding programs. In addition, butyrate supplementation in milk replacer (MR) stimulates postnatal growth and may affect the immune system in calves. We have investigated the combined effects of ad libitum MR feeding and butyrate supplementation on feeding behavior, health, and the immune responses in calves. Holstein calves (n = 64) were examined from birth until wk 11 of age. Calves received MR either ad libitum (Adl) or restrictively (Res) with (AdlB+, ResB+) or without (AdlB-, ResB-) 0...
May 16, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29777164/mrna-treatment-produces-sustained-expression-of-enzymatically-active-human-adamts13-in-mice
#6
Susan Liu-Chen, Brendan Connolly, Lei Cheng, Romesh R Subramanian, Zhaozhong Han
Thrombotic thrombocytopenic purpura (TTP) is primarily caused by deficiency of ADAMTS13 within the blood stream due to either genetic defects or presence of inhibitory autoantibodies. Preclinical and clinical studies suggest that enzyme replacement therapy with recombinant human ADAMTS13 protein (rhADAMTS13) is effective and safe in treatment of TTP. However, frequent dosing would be required due to the relatively short half-life of rhADAMTS13 in circulation as well as the presence of inhibitory autoantibodies that collectively result in the poor pharmacological profile of rhADAMTS13...
May 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29773783/cholesteryl-ester-storage-disease-fatal-outcome-without-causal-therapy-in-a-female-patient-with-the-preventable-sequelae-of-progressive-liver-disease-after-many-years-of-mild-symptoms
#7
Ali Canbay, Meike N Müller, Stathis Philippou, Guido Gerken, Andreas Tromm
BACKGROUND Cholesteryl ester storage disease (CESD), also known as lysosomal acid lipase deficiency (LAL-D), is a rare autosomal-recessive inheritable lysosomal storage disease. Since 2015, a causal treatment with sebelipase alfa, which replaces the missing LAL enzyme, has been approved. We report a fatal course of LAL-D in a female patient. CASE REPORT In 1979, CESD was first diagnosed in a 13-year-old female with marked hepatomegaly. At that time, no specific treatment for CESD was available and the spontaneous course of the disease had to be awaited...
May 18, 2018: American Journal of Case Reports
https://www.readbyqxmd.com/read/29773169/comparison-of-the-effect-of-dietary-copper-nanoparticles-and-one-copper-ii-salt-on-the-metabolic-and-immune-status-in-a-rat-model
#8
Ewelina Cholewińska, Jerzy Juśkiewicz, Katarzyna Ognik
The aim of the study was to evaluate the effects of a diet containing different levels of Cu in two different chemical forms (carbonate and nanoparticles) on metabolic, immune and antioxidant status in a rat model. Five experimental treatments (8 rats in each) were used to test different dosages of Cu added to the diet (standard -6.5 mg/kg, half the standard dosage -3.25 mg/kg, and no added Cu as a negative control) and two sources of added copper (standard -CuCO3 and copper nanoparticles -CuNPs). Blood and urine samples were collected from all the animals after four weeks of treatment...
July 2018: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/29771702/pathogenesis-of-cerebral-edema-in-patients-with-acute-renal-and-liver-failure-and-the-role-of-the-nephrologist-in-the-management
#9
Tamim Hamdi
PURPOSE OF REVIEW: Acute liver failure (ALF) is a severe and complex illness and one of the most daunting conditions managed in the ICU. Because the renal care is intertwined with multiple disciplines, the aim of this review is to examine the multifactorial pathogenesis of cerebral edema in ALF, covering basic established facts as well as recent advances in our understanding of this condition. RECENT FINDINGS: Acetaminophen remains the most common cause of ALF in the United States and many European countries...
May 15, 2018: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/29770757/soya-protein-%C3%AE-conglycinin-ameliorates-fatty-liver-and-obesity-in-diet-induced-obese-mice-through-the-down-regulation-of-ppar%C3%AE
#10
Dongyang Li, Reina Ikaga, Tomomi Yamazaki
Diets high in fat can result in obesity and non-alcoholic fatty liver disease (NAFLD). The improvement of obesity and NAFLD is an important issue. β-Conglycinin, one of the soya proteins, is known to prevent hyperlipidaemia, obesity and NAFLD. Therefore, we aimed to investigate the effects of β-conglycinin on the improvement of obesity and NAFLD in high-fat (HF) diet-induced obese (DIO) mice and clarify the mechanism underlying these effects in liver and white adipose tissue (WAT). DIO male ddY mice were divided into six groups: HF, medium-fat (MF) and low-fat (LF) groups fed casein, and HF, MF and LF groups in all of which the casein was replaced by β-conglycinin...
June 2018: British Journal of Nutrition
https://www.readbyqxmd.com/read/29770308/allo-and-auto-percutaneous-intra-portal-pancreatic-islet-transplantation-pipit-for-diabetes-cure-and-prevention-the-role-of-imaging-and-interventional-radiology
#11
REVIEW
Massimo Venturini, Claudio Sallemi, Paolo Marra, Anna Palmisano, Giulia Agostini, Carolina Lanza, Gianpaolo Balzano, Massimo Falconi, Antonio Secchi, Paolo Fiorina, Lorenzo Piemonti, Paola Maffi, Antonio Esposito, Francesco De Cobelli, Alessandro Del Maschio
Although the life expectancy of patients with type 1 diabetes mellitus (T1DM) has improved since the introduction of insulin therapy, the acute life-threatening and long-term complications from diabetes mellitus are significant causes of both mortality and morbidity. Percutaneous intra-portal pancreatic islet transplantation (PIPIT) is a minimally invasive, repeatable procedure which allows a β-cell replacement therapy through a liver islet engraftment, leading to insulin release and glycaemic control restoration in patients with diabetes...
April 2018: Gland Surgery
https://www.readbyqxmd.com/read/29768476/treatment-with-specific-soluble-factors-promotes-the-functional-maturation-of-transcription-factor-mediated-pancreatic-transdifferentiated-cells
#12
Hiroaki Motoyama, Akira Kobayashi, Takahide Yokoyama, Akira Shimizu, Hiroshi Sakai, Tsuyoshi Notake, Kentaro Fukushima, Shin-Ichi Miyagawa
Pancreatic lineage-specific transcription factors (TFs) display instructive roles in converting adult cells to endocrine pancreatic cells through a process known as transdifferentiation. However, little is known about potential factors capable of accelerating transdifferentiation following transduction to achieve the functional maturation of transdifferentiated cells. In this study, we demonstrated, using adult liver-derived progenitor cells, that soluble factors utilized in pancreatic differentiation protocols of pluripotent stem cells promote functional maturation of TFs-mediated transdifferentiated cells...
2018: PloS One
https://www.readbyqxmd.com/read/29767061/biochemical-and-histopathological-changes-in-sheep-fed-different-detoxified-karanj-pongamia-glabra-seed-cake-as-partial-protein-supplements
#13
Nira M Soren, Anil K Sharma, Vadali R B Sastry
The study investigated the long-term effect of feeding processed solvent extracted karanj ( Pongamia glabra ) cake (SKC) on gross pathology and histopathological changes in some vital organs, and on the activities of serum enzymes in Jalauni lambs. Twenty-four male lambs were divided into 4 groups and allotted randomly to a soybean meal (SBM) based control (CON) and 3 treatment groups receiving concentrate mixtures, containing water washed (WW), 2.5% lime (LM) and 0.4% binder (BN) treated SKC replacing 50% nitrogen of SBM to meet the protein requirements...
June 2017: Animal nutrition
https://www.readbyqxmd.com/read/29765912/oncolytic-adenovirus-ad657-for-systemic-virotherapy-against-prostate-cancer
#14
Tien V Nguyen, Catherine M Crosby, Gregory J Heller, Zachary I Mendel, Mary E Barry, Michael A Barry
Background: Human species C adenovirus serotype 5 (Ad5) is the archetype oncolytic adenovirus and has been used in the vast majority of preclinical and clinical tests. While Ad5 can be robust, species C Ad6 has lower seroprevalence, side effects, and appears to be more potent as a systemic therapy against a number of tumors than Ad5. Historically, there have only been four species C human adenoviruses: serotypes 1, 2, 5, and 6. More recently a new species C adenovirus, Ad57, was identified...
2018: Oncolytic Virotherapy
https://www.readbyqxmd.com/read/29765319/progression-and-regression-of-hepatic-lesions-in-a-mouse-model-of-nash-induced-by-dietary-intervention-and-its-implications-in-pharmacotherapy
#15
Zhi-Ming Ding, Yue Xiao, Xikun Wu, Haixia Zou, Shurong Yang, Yiyun Shen, Juehua Xu, Heather C Workman, Amy L Usborne, Haiqing Hua
Understanding of the temporal changes of hepatic lesions in the progression and regression of non-alcoholic steatohepatitis (NASH) is vital to elucidation of the pathogenesis of NASH, and critical to the development of a strategy for NASH pharmacotherapy. There are challenges in studying hepatic lesion progression and regression in NASH patients due to the slow development of NASH in humans, one being the requirement for multiple biopsies during the longitudinal follow-up. Here we studied lesion progression and regression in the diet-induced animal model of NASH by application or removal of the pathogenic diet for multiple time periods...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29764210/curative-ex-vivo-hepatocyte-directed-gene-editing-in-a-mouse-model-of-hereditary-tyrosinemia-type-1
#16
Caitlin VanLith, Rebekah Guthman, Clara T Nicolas, Kari Allen, Zeji Du, Dong Jin Joo, Scott L Nyberg, Joseph B Lillegard, Raymond Daniel Hickey
Hereditary tyrosinemia type 1 (HT1) is an autosomal recessive disorder caused by deficiency of fumarylacetoacetate hydrolase (FAH). It has been previously shown that ex vivo hepatocyte-directed gene therapy using an integrating lentiviral vector to replace the defective Fah gene can cure liver disease in small and large animal models of HT1. In this study, we hypothesized that ex vivo hepatocyte-directed gene editing using CRISPR-Cas9 could be used to correct a mouse model of HT1, in which a single point mutation results in loss of FAH function...
May 15, 2018: Human Gene Therapy
https://www.readbyqxmd.com/read/29761937/-mirror-mirror-on-the-wall-%C3%A2-pediatric-liver-transplantation-in-the-case-of-situs-inversus-totalis-with-a-disrupted-inferior-vena-cava
#17
Colston A Edgerton, Megan Gross, Nagraj Kasi, Winston Hewitt, Sara Edmondson, Vinayak S Rohan, Satish N Nadig
We present the unique case of a 15-month-old male born with biliary atresia and situs inversus totalis and disrupted inferior vena cava who underwent a successful liver transplantation. The patient had previously undergone a failed Kasai procedure and presented with persistent hyperbilirubinemia. The patient was transplanted with a left lateral segment donor having standard arterial anatomy. Technical considerations included identifying completely replaced arterial anatomy in the recipient from the superior mesenteric artery and creating a branch patch between the gastroduodenal artery and HA, anastomosing the donor left hepatic vein to confluences of the donor left, middle, and right hepatic veins, using a "lazy-S" configuration of portal vein anastomosis, and suspending the allograft to the abdominal wall...
May 15, 2018: Pediatric Transplantation
https://www.readbyqxmd.com/read/29760366/-contribution-of-chimeric-mice-with-a-humanized-liver-to-the-evaluation-of-pharmacology-toxicity-and-pharmacokinetics-in-drug-discovery-and-development
#18
Seigo Sanoh, Shigeru Ohta
To develop new drugs with high efficacy and safety, it is important to predict the pharmacological, toxicological, and pharmacokinetic profiles of drug candidates in humans. Chimeric mice with a humanized liver are mice in which human hepatocytes have been transplanted, such that mouse liver cells are replaced with human hepatocytes; these mice have been used as prediction models. Studies performed thus far indicate that chimeric mice with a humanized liver can be used for the prediction of human-specific metabolite formation and plasma concentration-time curves for several drugs...
2018: Nihon Yakurigaku Zasshi. Folia Pharmacologica Japonica
https://www.readbyqxmd.com/read/29758331/liver-regeneration-requires-yap1-tgf%C3%AE-dependent-epithelial-mesenchymal-transition-in-hepatocytes
#19
Seh-Hoon Oh, Marzena Swiderska-Syn, Mark L Jewell, Richard T Premont, Anna Mae Diehl
BACKGROUND: Chronic failure of mechanisms that promote effective regeneration of dead hepatocytes causes replacement of functional hepatic parenchyma with fibrous scar and ultimately results in cirrhosis. Therefore, defining and optimizing mechanisms that orchestrate effective regeneration might prevent cirrhosis. We hypothesized that effective regeneration of injured livers requires hepatocytes to evade the growth inhibitory actions of TGF-β since TGF-β signaling inhibits mature hepatocyte growth but drives cirrhosis pathogenesis...
May 11, 2018: Journal of Hepatology
https://www.readbyqxmd.com/read/29756964/a%C3%A3-ai-improves-non-alcoholic-fatty-liver-disease-nafld-induced-by-fructose
#20
Mayara Medeiros de Freitas Carvalho, Larissa Lélis Teixeira Reis, Juliana Márcia Macedo Lopes, Nara Nunes Lage, Joyce Ferreira da Costa Guerra, Helena Porto Zago, Larissa De Freitas Bonomo, Renata Rebeca Pereira, Wanderson Geraldo de Lima, Marcelo Eustáquio Silva, Maria Lucia Pedrosa
INTRODUCTION: the excessive consumption of fructose can cause liver damage, characteristic of non-alcoholic fatty liver disease (NAFLD) associated with changes in lipid metabolism and antioxidant defenses. Açai, the fruit of Euterpe oleraceaMart., has demonstrated numerous biological activities, including anti-inflammatory, antioxidant, and lipid metabolism modulating action. OBJECTIVE: we evaluated the benefits of açai supplementation on liver damage caused by replacing starch with fructose in rats...
February 16, 2018: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
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