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https://www.readbyqxmd.com/read/28417883/from-the-editor-s-desk-may-2017
#1
Richard Moreau, Ramon Bataller, Thomas Berg, Jessica Zucmann-Rossi, Rajiv Jalan
No abstract text is available yet for this article.
May 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28350742/short-article-impact-of-genetic-variation-in-the-vasopressin-1a-receptor-on-the-development-of-organ-failure-in-patients-admitted-for-acute-decompensation-of-liver-cirrhosis
#2
Annarein J C Kerbert, Jelte J Schaapman, Johan J van der Reijden, Àlex Amorós Navarro, Aiden McCormick, Bart van Hoek, Vicente Arroyo, Pere Ginès, Rajiv Jalan, Victor Vargas, Rudolf Stauber, Hein W Verspaget, Minneke J Coenraad
BACKGROUND: Vasopressin receptor-mediated vasoconstriction is considered to be involved in the pathogenesis of organ failure in acute-on-chronic liver failure (ACLF). PATIENTS AND METHODS: We studied the association between six single nucleotide polymorphisms (SNPs) of the vasopressin 1a receptor gene and the development of organ failure in 826 patients admitted for acute decompensation of liver cirrhosis (n=641) or ACLF (n=185). RESULTS: No associations were found for SNPs with the presence of circulatory or renal failure...
May 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28325201/from-the-editor-s-desk-april-2017
#3
Richard Moreau, Ramon Bataller, Thomas Berg, Jessica Zucman-Rossi, Rajiv Jalan
No abstract text is available yet for this article.
April 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28321158/porcine-model-characterizing-various-parameters-assessing-the-outcome-after-acetaminophen-intoxication-induced-acute-liver-failure
#4
Karolin Thiel, Wilfried Klingert, Kathrin Klingert, Matthias H Morgalla, Martin U Schuhmann, Pamela Leckie, Yalda Sharifi, Nathan A Davies, Rajiv Jalan, Andreas Peter, Christian Grasshoff, Alfred Königsrainer, Martin Schenk, Christian Thiel
AIM: To investigate the changes of hemodynamic and laboratory parameters during the course of acute liver failure following acetaminophen overdose. METHODS: Eight pigs underwent a midline laparotomy following jejunal catheter placement for further acetaminophen intoxication and positioning of a portal vein Doppler flow-probe. Acute liver failure was realized by intrajejunal acetaminophen administration in six animals, two animals were sham operated. All animals were invasively monitored and received standardized intensive care support throughout the study...
March 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28297860/evolution-of-correlated-multiplexity-through-stability-maximization
#5
Sanjiv K Dwivedi, Sarika Jalan
Investigating the relation between various structural patterns found in real-world networks and the stability of underlying systems is crucial to understand the importance and evolutionary origin of such patterns. We evolve multiplex networks, comprising antisymmetric couplings in one layer depicting predator-prey relationship and symmetric couplings in the other depicting mutualistic (or competitive) relationship, based on stability maximization through the largest eigenvalue of the corresponding adjacency matrices...
February 2017: Physical Review. E
https://www.readbyqxmd.com/read/28237397/sox17-regulates-cholangiocyte-differentiation-and-acts-as-a-tumor-suppressor-in-cholangiocarcinoma
#6
Maite Merino-Azpitarte, Elisa Lozano, María J Perugorria, Aitor Esparza-Baquer, Oihane Erice, Álvaro Santos-Laso, Colm J O'Rourke, Jesper B Andersen, Raúl Jiménez-Agüero, Adelaida Lacasta, Mauro D'Amato, Óscar Briz, Nidhi Jalan-Sakrikar, Robert C Huebert, Kristen M Thelen, Sergio A Gradilone, Ana M Aransay, José L Lavín, Maite G Fernández-Barrena, Ander Matheu, Marco Marzioni, Gregory J Gores, Luis Bujanda, José J G Marin, Jesús M Banales
BACKGROUND & AIMS: Cholangiocarcinoma (CCA) is a biliary malignancy linked to genetic and epigenetic abnormalities, such as hypermethylation of SOX17 promoter. Here, the role of SOX17 in cholangiocyte differentiation and cholangiocarcinogenesis was studied. METHODS: SOX17 expression/function was evaluated along the differentiation of human induced pluripotent stem cells (iPSC) into cholangiocytes, in the dedifferentiation process of normal human cholangiocytes (NHC) in culture and in cholangiocarcinogenesis...
February 22, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28214501/from-the-editor-s-desk-march-2017
#7
Richard Moreau, Ramon Bataller, Thomas Berg, Jessica Zucman-Rossi, Rajiv Jalan
No abstract text is available yet for this article.
March 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28201845/regenerative-medicine-and-the-biliary-tree
#8
Thiago M De Assuncao, Nidhi Jalan-Sakrikar, Robert C Huebert
Despite decades of basic research, biliary diseases remain prevalent, highly morbid, and notoriously difficult to treat. We have, however, dramatically increased our understanding of biliary developmental biology, cholangiocyte pathophysiology, and the endogenous mechanisms of biliary regeneration and repair. All of this complex and rapidly evolving knowledge coincides with an explosion of new technological advances in the area of regenerative medicine. New breakthroughs such as induced pluripotent stem cells and organoid culture are increasingly being applied to the biliary system; it is only a matter of time until new regenerative therapeutics for the cholangiopathies are unveiled...
February 2017: Seminars in Liver Disease
https://www.readbyqxmd.com/read/28174724/not-all-mice-are-the-same-standardization-of-animal-research-data-presentation
#9
EDITORIAL
M Bishr Omary, David E Cohen, Emad M El-Omar, Rajiv Jalan, Malcolm J Low, Michael H Nathanson, Richard M Peek, Jerrold R Turner
No abstract text is available yet for this article.
July 2016: Cellular and Molecular Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28155908/understanding-cancer-complexome-using-networks-spectral-graph-theory-and-multilayer-framework
#10
Aparna Rai, Priodyuti Pradhan, Jyothi Nagraj, K Lohitesh, Rajdeep Chowdhury, Sarika Jalan
Cancer complexome comprises a heterogeneous and multifactorial milieu that varies in cytology, physiology, signaling mechanisms and response to therapy. The combined framework of network theory and spectral graph theory along with the multilayer analysis provides a comprehensive approach to analyze the proteomic data of seven different cancers, namely, breast, oral, ovarian, cervical, lung, colon and prostate. Our analysis demonstrates that the protein-protein interaction networks of the normal and the cancerous tissues associated with the seven cancers have overall similar structural and spectral properties...
February 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28137913/chromatin-domain-organization-of-tcrb-locus-and-its-perturbation-by-ectopic-ctcf-binding
#11
Pratishtha Rawat, Manisha Jalan, Ananya Sadhu, Abhilasha Kanaujia, Madhulika Srivastava
CTCF mediated chromatin interactions influence organization and function of mammalian genome in diverse ways. We analyzed the interactions amongst CTCF binding sites (CBS) at murine TCRb locus to discern the role of CTCF mediated interactions in regulation of transcription and VDJ recombination. 3C analysis revealed thymocyte specific long-range intrachromosomal interactions amongst various CBS across the locus that were relevant for defining the limit of enhancer Eb regulated Recombination Centre (RC) and for facilitating the spatial proximity of Trbv segments to RC...
January 30, 2017: Molecular and Cellular Biology
https://www.readbyqxmd.com/read/28104087/from-the-editor-s-desk-february-2017
#12
Richard Moreau, Ramon Bataller, Thomas Berg, Jessica Zucman-Rossi, Rajiv Jalan
No abstract text is available yet for this article.
February 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28079670/impact-of-genetic-variation-in-the-vasopressin-1a-receptor-on-the-development-of-organ-failure-in-patients-admitted-for-acute-decompensation-of-liver-cirrhosis
#13
Annarein J C Kerbert, Jelte J Schaapman, Johan J van der Reijden, Àlex Amorós Navarro, Aiden McCormick, Bart van Hoek, Vicente Arroyo, Pere Ginès, Rajiv Jalan, Victor Vargas, Rudolf Stauber, Hein W Verspaget, Minneke J Coenraad
BACKGROUND: Vasopressin receptor-mediated vasoconstriction is considered to be involved in the pathogenesis of organ failure in acute-on-chronic liver failure (ACLF). PATIENTS AND METHODS: We studied the association between six single nucleotide polymorphisms (SNPs) of the vasopressin 1a receptor gene and the development of organ failure in 826 patients admitted for acute decompensation of liver cirrhosis (n=641) or ACLF (n=185). RESULTS: No associations were found for SNPs with the presence of circulatory or renal failure...
January 10, 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28066916/ammonia-mediates-cortical-hemichannel-dysfunction-in-rodent-models-of-chronic-liver-disease
#14
Anna Hadjihambi, Francesco De Chiara, Patrick S Hosford, Abeba Habtetion, Anastassios Karagiannis, Nathan Davies, Alexander V Gourine, Rajiv Jalan
The pathogenesis of hepatic encephalopathy (HE) in cirrhosis is multifactorial and ammonia is thought to play a key role. Astroglial dysfunction is known to be present in HE. Astrocytes are extensively connected by gap junctions formed of connexins, which also exist as functional hemichannels allowing exchange of molecules between the cytoplasm and the extracellular milieu. The astrocyte-neuron lactate shuttle hypothesis suggests that neuronal activity is fueled (at least in part) by lactate provided by neighboring astrocytes...
April 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28051160/lipopolysaccharide-induced-neutrophil-dysfunction-following-transjugular-intrahepatic-portosystemic-stent-shunt-tipss-insertion-is-associated-with-organ-failure-and-mortality
#15
Jane Macnaughtan, Rajeshwar P Mookerjee, Rajiv Jalan
Systemic lipopolysaccharide (LPS) is implicated in increasing mortality in patients with alcoholic hepatitis but the underlying mechanisms are not well characterised. The objective of this study was to characterise neutrophil function, LPS and cytokine concentrations within the splanchnic circulation of alcoholic cirrhotic patients undergoing TIPSS insertion for variceal haemorrhage and correlate this with outcome. 26 patients with alcoholic cirrhosis and variceal haemorrhage were studied prior to and 1-hour after TIPSS insertion...
January 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28039913/the-unfolded-protein-response-mediates-fibrogenesis-and-collagen-i-secretion-through-regulating-tango1-in-mice
#16
Jessica L Maiers, Enis Kostallari, Malek Mushref, Thiago M deAssuncao, Haiyang Li, Nidhi Jalan-Sakrikar, Robert C Huebert, Sheng Cao, Harmeet Malhi, Vijay H Shah
Fibrogenesis encompasses the deposition of matrix proteins, such as collagen I, by hepatic stellate cells (HSCs) that culminates in cirrhosis. Fibrogenic signals drive transcription of procollagen I, which enters the endoplasmic reticulum (ER), is trafficked through the secretory pathway, and released to generate extracellular matrix. Alternatively, disruption of procollagen I ER export could activate the unfolded protein response (UPR) and drive HSC apoptosis. Using a small interfering RNA screen, we identified Transport and Golgi organization 1 (TANGO1) as a potential participant in collagen I secretion...
March 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/27989307/from-the-editor-s-desk
#17
Richard Moreau, Ramon Bataller, Thomas Berg, Jessica Zucman-Rossi, Rajiv Jalan
No abstract text is available yet for this article.
January 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/27936185/hedgehog-signaling-overcomes-an-ezh2-dependent-epigenetic-barrier-to-promote-cholangiocyte-expansion
#18
Nidhi Jalan-Sakrikar, Thiago M De Assuncao, Jie Lu, Luciana L Almada, Gwen Lomberk, Martin E Fernandez-Zapico, Raul Urrutia, Robert C Huebert
BACKGROUND & AIMS: Developmental morphogens play an important role in coordinating the ductular reaction and portal fibrosis occurring in the setting of cholangiopathies. However, little is known about how membrane signaling events in ductular reactive cells (DRCs) are transduced into nuclear transcriptional changes to drive cholangiocyte maturation and matrix deposition. Therefore, the aim of this study was to investigate potential mechanistic links between cell signaling events and epigenetic regulators in DRCs...
2016: PloS One
https://www.readbyqxmd.com/read/27863618/from-the-editor-s-desk-december-2016
#19
Richard Moreau, Ramon Bataller, Thomas Berg, Jessica Zucman-Rossi, Rajiv Jalan
No abstract text is available yet for this article.
December 2016: Journal of Hepatology
https://www.readbyqxmd.com/read/27805917/caval-subtraction-2d-phase-contrast-mri-to-measure-total-liver-and-hepatic-arterial-blood-flow-proof-of-principle-correlation-with-portal-hypertension-severity-and-validation-in-patients-with-chronic-liver-disease
#20
Manil D Chouhan, Rajeshwar P Mookerjee, Alan Bainbridge, Shonit Punwani, Helen Jones, Nathan Davies, Simon Walker-Samuel, David Patch, Rajiv Jalan, Steve Halligan, Mark F Lythgoe, Stuart A Taylor
OBJECTIVES: Caval subtraction phase-contrast magnetic resonance imaging (PCMRI) noninvasive measurements of total liver blood flow (TLBF) and hepatic arterial (HA) flow have been validated in animal models and translated into normal volunteers, but not patients. This study aims to demonstrate its use in patients with liver cirrhosis, evaluate measurement consistency, correlate measurements with portal hypertension severity, and invasively validate TLBF measurements. MATERIALS AND METHODS: Local research ethics committee approval was obtained...
March 2017: Investigative Radiology
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