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https://www.readbyqxmd.com/read/27912077/nlrp3-activation-induces-il-18-synthesis-and-affects-the-epithelial-barrier-function-in-reactive-cholangiocytes
#1
Luca Maroni, Laura Agostinelli, Stefania Saccomanno, Claudio Pinto, Debora Giordano, Chiara Rychlicki, Samuele De Minicis, Luciano Trozzi, Jesus M Banales, Espen Melum, Tom H Karlsen, Antonio Benedetti, Gianluca Svegliati Baroni, Marco Marzioni
Microbial products are thought to influence the progression of cholangiopathies, in particular primary sclerosing cholangitis (PSC). Inflammasomes are molecular platforms that respond to microbial products through the synthesis of proinflammatory cytokines. We investigated the role of inflammasome activation in cholangiocyte response to injury. Nucleotide-binding oligomerization domain (NOD)-like receptor family, pyrin domain-containing protein 3 (Nlrp3) expression was tested in cholangiocytes of normal and cholestatic livers...
November 29, 2016: American Journal of Pathology
https://www.readbyqxmd.com/read/27884502/the-role-of-arterial-conduits-for-revascularisation-in-adult-orthotopic-liver-transplantation
#2
REVIEW
Nikolaos A Chatzizacharias, Mohamed Aly, Raaj K Praseedom
The successful outcome in orthotopic liver transplantation (OLT) is critically dependent on the uncompromised hepatic graft blood inflow. Arterial conduits represent a good solution in cases where conventional revascularisation is not possible. The purpose of this systematic review is to analyse the published evidence on the use of arterial conduits in adult OLT. After review of the Pubmed and EMBASE databases, 19 relevant studies were identified and analysed. Even though patient survival was comparable, most large studies reported worse 1-, 3- and 5-year graft survival rates compared to grafts with standard arterial revascularisation...
November 4, 2016: Transplantation Reviews
https://www.readbyqxmd.com/read/27876037/the-efficacy-of-adalimumab-in-psoriatic-arthritis-concomitant-to-overlapping-primary-biliary-cholangitis-and-primary-sclerosing-cholangitis-a-case-report
#3
Teresa Del Ross, Amelia Ruffatti, Annarosa Floreani, Ariela Hoxha, Leonardo Punzi
BACKGROUND: The overlap syndrome of primary biliary cholangitis (formerly called primary biliary cirrhosis) and primary sclerosing cholangitis is an extremely rare condition that has never been described in association with other immune-mediated diseases, including psoriatic arthritis. While treatment with anti-Tumour Necrosis Factor-alpha (TNF-α) agents has proved to be effective in inflammatory arthropathies such as psoriatic arthritis, they have been employed in only a limited number of patients with autoimmune hepatitis, and their effectiveness is unclear...
November 22, 2016: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/27859498/the-srl-peptide-of-rhesus-rotavirus-vp4-protein-governs-cholangiocyte-infection-and-the-murine-model-of-biliary-atresia
#4
Sujit K Mohanty, Bryan Donnelly, Inna Lobeck, Ashley Walther, Phylicia Dupree, Abigail Coots, Jaroslaw Meller, Monica McNeal, Karol Sestak, Greg Tiao
: Biliary atresia (BA) is a neonatal obstructive cholangiopathy which progresses to end stage liver disease, often requiring transplantation. The murine model of BA, employing rhesus rotavirus (RRV), parallels human disease and has been used to elucidate mechanistic aspects of a virus induced biliary cholangiopathy. We previously reported that RRV VP4 gene plays an integral role in activating the immune system and induction of BA. Utilizing rotavirus binding and blocking assays, this study elucidated how RRV VP4 protein governs cholangiocyte susceptibility to infection both in vitro and in vivo in the murine model of BA...
November 17, 2016: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/27852547/prevalence-of-igg-4-associated-cholangiopathy-based-on-serum-igg-4-levels-in-patients-with-primary-sclerosing-cholangitis-and-its-relationship-with-inflammatory-bowel-disease
#5
Seyed Alireza Taghavi, Shaghayegh Kaedi Majd, Mahnoosh Sianati, Masood Sepehrimanesh
BACKGROUND/AIMS: Autoimmune cholangiopathy is part of a fibro-inflammatory immunoglobulin G-4 (IgG-4)-related systemic disease that causes biliary tract strictures. Its clinical presentation is quite similar to that of more common diseases such as primary sclerosing cholangitis (PSC) and pancreatobilliary malignancies. The aims of the present study were to evaluate the prevalence of IgG-4-associated cholangiopathy (IAC) in patients diagnosed with PSC and its relationship with inflammatory bowel disease (IBD)...
November 2016: Turkish Journal of Gastroenterology: the Official Journal of Turkish Society of Gastroenterology
https://www.readbyqxmd.com/read/27788674/mesenchymal-stem-cells-improve-mouse-non-heart-beating-liver-graft-survival-by-inhibiting-kupffer-cell-apoptosis-via-tlr4-erk1-2-fas-fasl-caspase3-pathway-regulation
#6
Yang Tian, Jingcheng Wang, Wei Wang, Yuan Ding, Zhongquan Sun, Qiyi Zhang, Yan Wang, Haiyang Xie, Sheng Yan, Shusen Zheng
BACKGROUND: Liver transplantation is the optimal treatment option for end-stage liver disease, but organ shortages dramatically restrict its application. Donation after cardiac death (DCD) is an alternative approach that may expand the donor pool, but it faces challenges such as graft dysfunction, early graft loss, and cholangiopathy. Moreover, DCD liver grafts are no longer eligible for transplantation after their warm ischaemic time exceeds 30 min. Mesenchymal stem cells (MSCs) have been proposed as a promising therapy for treatment of certain liver diseases, but the role of MSCs in DCD liver graft function remains elusive...
October 27, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27783454/successful-donation-after-cardiac-death-liver-transplants-with-prolonged-warm-ischemia-time-using-normothermic-regional-perfusion
#7
R De Carlis, S Di Sandro, A Lauterio, F Ferla, A Dell'Acqua, M Zanierato, L De Carlis
The role of donation after cardiac death (DCD) in expanding the donor pool is mainly limited by the incidence of primary non-function (PNF) and ischemia-related complications. Even greater concern exists towards uncontrolled DCD, which represents the largest potential pool of DCD donors. We recently started the first Italian series of DCD liver transplantation, using normothermic regional perfusion (NRP) in 6 uncontrolled donors and in 1 controlled case to deal with the legally required no-touch period of 20 minutes...
October 26, 2016: Liver Transplantation
https://www.readbyqxmd.com/read/27740534/%C3%A2-the-effect-of-ursodeoxycholic-acid-in-cystic-cholangiopathies
#8
Frank Lammert, Nahum Méndez-Sánchez
No abstract text is available yet for this article.
November 2016: Annals of Hepatology
https://www.readbyqxmd.com/read/27730821/spectrum-of-biliary-abnormalities-in-portal-cavernoma-cholangiopathy-pcc-secondary-to-idiopathic-extrahepatic-portal-vein-obstruction-ehpvo-a-prospective-magnetic-resonance-cholangiopancreaticography-mrcp-based-study
#9
Shumyla Jabeen, Irfan Robbani, Naseer A Choh, Obaid Ashraf, Feroze Shaheen, Tariq Gojwari, Sabeeha Gul
OBJECTIVE: To characterize biliary abnormalities seen in portal cavernoma cholangiopathy (PCC) on Magnetic Resonance Cholangiopancreaticography(MRCP) and elucidate certain salient features of the disease by collaborating our findings with those of previous studies. METHODS: We prospectively enrolled 52 patients with portal cavernoma secondary to idiopathic Extrahepatic portal vein obstruction(EHPVO) who underwent a standard MRCP protocol. Images were analysed for abnormalities involving the entire biliary tree...
October 12, 2016: British Journal of Radiology
https://www.readbyqxmd.com/read/27725553/progressive-hiv-associated-cholangiopathy-in-an-hiv-patient-treated-with-combination-antiretroviral-therapy
#10
Kazuo Imai, Kazuhisa Misawa, Takahiro Matsumura, Yuji Fujikura, Kei Mikita, Masaharu Tokoro, Takuya Maeda, Akihiko Kawana
We herein describe a case of progressive human immunodeficiency virus (HIV)-associated cholangiopathy despite normalization of laboratory parameters, which had indicated liver dysfunction, after the initiation of combined anti-retroviral therapy (cART). HIV-associated cholangiopathy remains important as a differential diagnosis of bile duct disorders, although it is considered to be a rare disease in the era of cART. Magnetic resonance cholangiopancreatography could thus be a powerful tool for the diagnosis and follow-up of this disease...
2016: Internal Medicine
https://www.readbyqxmd.com/read/27712010/hepatic-manifestations-of-inflammatory-bowel-diseases
#11
Sophie Restellini, Olivier Chazouillères, Jean-Louis Frossard
Inflammatory bowel diseases (IBD) are associated with various hepatobiliary disorders, reported both in Crohn's disease (CD) and ulcerative colitis (UC). They may occur at any moment in the natural course of the disease. The prevalence of liver dysfunction rises from 3% to 50% accordingly to definitions. Fatty liver is considered as the most common hepatobiliary complication in IBD whilst primary sclerosing cholangitis (PSC) the most specific one. Less frequently, IBD-associated hepatobiliary disorders include: autoimmune hepatitis/PSC overlap syndrome, IgG4-associated cholangiopathy, primary biliary cholangitis (PBC), hepatic amyloidosis, granulomatous hepatitis, cholelithiasis, portal vein thrombosis, and liver abscess...
October 6, 2016: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/27689206/therapeutic-challenges-for-symptomatic-portal-cavernoma-cholangiopathy
#12
Adriana Cavași, Voicu Mercea, Ofelia Anton, Ion Cosmin Puia
Although transjugular intrahepatic portosystemic shunts are most frequently used for the management of portal hypertension, the surgical approach is preferred for symptomatic portal cavernoma cholangiopathy. We present the case of a 25-year old female patient with a portal cavernoma secondary to catheterization of the umbilical vein at birth. She had had two episodes of esophageal variceal bleeding, successfully treated by endoscopic banding. and an episode of acute cholangitis secondary to portal cavernoma cholangiopathy...
September 2016: Journal of Gastrointestinal and Liver Diseases: JGLD
https://www.readbyqxmd.com/read/27639330/single-operator-cholangioscopy-for-the-diagnosis-of-portal-carvernoma-cholangiopathy
#13
Hyoung-Chul Oh, Fatih Akisik, Stuart Sherman
No abstract text is available yet for this article.
September 14, 2016: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/27629435/the-cystic-fibrosis-transmembrane-conductance-regulator-controls-biliary-epithelial-inflammation-and-permeability-by-regulating-src-tyrosine-kinase-activity
#14
Romina Fiorotto, Ambra Villani, Antonis Kourtidis, Roberto Scirpo, Mariangela Amenduni, Peter J Geibel, Massimiliano Cadamuro, Carlo Spirli, Panos Z Anastasiadis, Mario Strazzabosco
: In the liver, the cystic fibrosis (CF) transmembrane conductance regulator (CFTR) regulates bile secretion and other functions at the apical membrane of biliary epithelial cells (i.e., cholangiocytes). CF-related liver disease is a major cause of death in patients with CF. CFTR dysfunction affects innate immune pathways, generating a para-inflammatory status in the liver and other epithelia. This study investigates the mechanisms linking CFTR to toll-like receptor 4 activity. We found that CFTR is associated with a multiprotein complex at the apical membrane of normal mouse cholangiocytes, with proteins that negatively control Rous sarcoma oncogene cellular homolog (Src) activity...
December 2016: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/27628960/extracellular-vesicles-in-liver-pathobiology-small-particles-with-big-impact
#15
REVIEW
Petra Hirsova, Samar H Ibrahim, Vikas K Verma, Leslie A Morton, Vijay H Shah, Nicholas F LaRusso, Gregory J Gores, Harmeet Malhi
Extracellular vesicles (EVs) are nanometer-sized, membrane-bound vesicles released by cells into the extracellular milieu. EVs are now recognized to play a critical role in cell-to-cell communication. EVs contain important cargo in the form of proteins, lipids, and nucleic acids and serve as vectors for delivering this cargo from donor to acceptor or target cell. EVs are released under both physiologic and pathologic conditions, including liver diseases, and exert a wide range of effects on target cells. This review provides an overview on EV biogenesis, secretion, cargo, and target cell interactions in the context of select liver diseases...
December 2016: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/27618480/stress-induced-cellular-responses-and-cell-death-mechanisms-during-inflammatory-cholangiopathies
#16
Motoko Sasaki, Yasuni Nakanuma
Various cellular responses including apoptosis, necrosis, autophagy and cellular senescence are involved in the pathogenesis of inflammatory cholangiopathies, such as primary biliary cholangitis (PBC), primary sclerosing cholangitis (PSC) and biliary atresia (BA). For example, dysregulated autophagy may play a role in abnormal expression of mitochondrial antigens and following autoimmune pathogenesis in bile duct lesions in PBC. Recently, new types of regulated cell death including necroptosis, parthanatos, pyroptosis, immunogenic cell death are the subject of numerous reports and they may play roles in pathogenesis of liver diseases, such as nonalcoholic steatohepatitis...
September 8, 2016: Clinics and Research in Hepatology and Gastroenterology
https://www.readbyqxmd.com/read/27618307/macrophage-depletion-attenuates-extracellular-matrix-deposition-and-ductular-reaction-in-a-mouse-model-of-chronic-cholangiopathies
#17
Jan Best, Stefaan Verhulst, Wing-Kin Syn, Kimberly Lagaisse, Noemi van Hul, Femke Heindryckx, Jan-Peter Sowa, Liesbeth Peeters, Hans Van Vlierberghe, Isabelle A Leclercq, Ali Canbay, Laurent Dollé, Leo A van Grunsven
Chronic cholangiopathies, such as primary and secondary sclerosing cholangitis, are progressive disease entities, associated with periportal accumulation of inflammatory cells, encompassing monocytes and macrophages, peribiliary extracellular matrix (ECM) deposition and ductular reaction (DR). This study aimed to elucidate the relevance of macrophages in the progression of chronic cholangiopathies through macrophage depletion in a 3,5-diethoxycarbonyl-1,4-dihydrocollidine (DDC) mouse model. One group of mice received a single i...
2016: PloS One
https://www.readbyqxmd.com/read/27606144/sequential-evaluation-of-pancreato-biliary-findings-in-a-case-with-igg4-associated-cholangiopathy-and-autoimmune-pancreatitis-during-corticosteroid-treatment
#18
İsmail Şerifoğlu, İbrahim İlker Öz, Yücel Üstündağ, Sevil Uygun İlikhan, Özlem Tokgöz
BACKGROUND: Immunoglobulin G4 (IgG4)-associated diseases mostly involve the pancreaticobiliary tree and pancreatic parenchyma. This disease complex is characterized by marked response to corticosteroid therapy and response to steroids is incorporated in the diagnostic algorithm of IgG4 associated diseases. However, there is much unknown about the sequences and duration of healing during the corticosteroid therapy in the literature. CASE REPORT: In this case report, we report a young male patient with IgG4 associated extrahepatic biliary stricture and autoimmune pancreatitis successfully treated with corticosteroids...
July 2016: Balkan Medical Journal
https://www.readbyqxmd.com/read/27563020/biology-of-cholangiocytes-from-bench-to-bedside
#19
REVIEW
Kyo-Sang Yoo, Woo Taek Lim, Ho Soon Choi
Cholangiocytes, the lining epithelial cells in bile ducts, are an important subset of liver cells. They are activated by endogenous and exogenous stimuli and are involved in the modification of bile volume and composition. They are also involved in damaging and repairing the liver. Cholangiocytes have many functions including bile production. They are also involved in transport processes that regulate the volume and composition of bile. Cholangiocytes undergo proliferation and cell death under a variety of conditions...
September 15, 2016: Gut and Liver
https://www.readbyqxmd.com/read/27526058/loss-of-a-candidate-biliary-atresia-susceptibility-gene-add3a-causes-biliary-developmental-defects-in-zebrafish
#20
Vivian Tang, Zenobia C Cofer, Shuang Cui, Valerie Sapp, Kathleen M Loomes, Randolph P Matthews
OBJECTIVES: Biliary atresia (BA) is a progressive fibroinflammatory cholangiopathy affecting the bile ducts of neonates. Although BA is the leading indication for pediatric liver transplantation, the etiology remains elusive. Adducin 3 (ADD3) and X-prolyl aminopeptidase 1 (XPNPEP1) are 2 genes previously identified in genome-wide association studies as potential BA susceptibility genes. Using zebrafish, we investigated the importance of ADD3 and XPNPEP1 in functional studies. METHODS: To determine whether loss of either gene leads to biliary defects, we performed morpholino antisense oligonucleotide (MO) knockdown studies targeting add3a and xpnpep1 in zebrafish...
November 2016: Journal of Pediatric Gastroenterology and Nutrition
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