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https://www.readbyqxmd.com/read/29050073/-clinicopathologic-features-of-three-cases-of-erythropoietic-protoporphyria-with-liver-involvement
#1
J Shi, X Q Li, Z H Lu
Objective: To investigate the clinicopathologic features of the erythropoietic protoporphyria (EPP) with liver involvement. Methods: The clinical findings and hepatic biopsy of 3 cases of EPP diagnosed between July, 2011 to August, 2014 with liver involvement were reviewed, with relevant literature review. Results: All patients presented with persistent and refractory abdominal pain, with obvious jaundice and deranged liver function. Imaging showed homogeneous hepatomegaly in all patients. Histologically, the hepatocytes were edematous, and contained numerous cytoplasmic globular brown pigments and bile pigments, which were also found in Kupffer cells, in the bile canaliculi and in some of dilated sinusoid...
October 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29049401/risk-factors-for-intrahepatic-and-extrahepatic-cholangiocarcinoma-in-the-united-states-a-population-based-study-in-seer-medicare
#2
Jessica L Petrick, Baiyu Yang, Sean F Altekruse, Alison L Van Dyke, Jill Koshiol, Barry I Graubard, Katherine A McGlynn
OBJECTIVES: Intrahepatic (ICC) and extrahepatic (ECC) cholangiocarcinomas are rare tumors that arise from the epithelial cells of the bile ducts, and the etiology of both cancer types is poorly understood. Thus, we utilized the Surveillance, Epidemiology, and End Results (SEER)-Medicare resource to examine risk factors and novel preexisting medical conditions that may be associated with these cancer types. METHODS: Between 2000 and 2011, 2,092 ICC and 2,981 ECC cases and 323,615 controls were identified using the SEER-Medicare database...
2017: PloS One
https://www.readbyqxmd.com/read/29039048/sclerosing-and-obstructive-cholangiopathy-in-biliary-atresia-mechanisms-and-association-with-biliary-innate-immunity
#3
REVIEW
Kenichi Harada
Biliary atresia (BA) is histologically characterized by a progressive, sclerosing cholangitis and the obstruction of extrahepatic bile ducts. In terms of the etiology and pathogenesis of BA, several viral infections consisting of dsRNA, including Reoviridae, have been implicated. Human biliary epithelial cells (BECs) possess an innate immune system consisting of Toll-like receptors (TLRs). BECs have negative regulatory mechanisms of TLR tolerance to avoid an excessive inflammatory response to lipopolysaccharide (LPS), a TLR4 ligand; however, they lack the tolerance to poly(I:C) (a synthetic analog of viral dsRNA), a TLR3 ligand...
October 16, 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/29034817/enhanced-cytotoxic-activity-of-effector-t-cells-against-cholangiocarcinoma-by-dendritic-cells-pulsed-with-pooled-mrna
#4
Mutita Junking, Janya Grainok, Chutamas Thepmalee, Sopit Wongkham, Pa-Thai Yenchitsomanus
Cholangiocarcinoma is a malignancy of bile duct epithelia with an increasing in incidence rate worldwide. Surgery is the only curative treatment, while adjuvant chemotherapy and radiotherapy render poor responses. Cell-based immunotherapy is a potential strategy for cholangiocarcinoma treatment. However, variation of tumor antigens in cholangiocarcinoma leads to the ineffectiveness of cell-based immunotherapy. In this study, we examined the activation of effector T-cells by dendritic cells pulsed with protein lysate or total RNA from cholangiocarcinoma cell lines for their cytolytic activity against cholangiocarcinoma...
October 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/29026274/a-case-of-an-infant-with-congenital-combined-pituitary-hormone-deficiency-and-normalized-liver-histology-of-infantile-cholestasis-after-hormone-replacement-therapy
#5
Keisuke Wada, Hironori Kobayashi, Aisa Moriyama, Yasuhiro Haneda, Yuichi Mushimoto, Yuki Hasegawa, Kazumichi Onigata, Koji Kumori, Noriyoshi Ishikawa, Riruke Maruyama, Tsuyoshi Sogo, Lynne Murphy, Takeshi Taketani
Congenital combined pituitary hormone deficiency (CPHD) may present with cholestasis in the neonate or during early infancy. However, its precise mechanism is unknown. A 3-mo-old boy presented with cryptorchidism and hypoplastic scrotum after birth. Neonatal jaundice was noted but temporarily improved with phototherapy. Jaundice recurred at 2 mo of age. Elevated direct bilirubin (D-Bil) and liver dysfunction were found but cholangiography showed no signs of biliary atresia (BA). Liver biopsy findings showed giant cell formation of hepatocytes with hypoplastic bile ducts...
2017: Clinical Pediatric Endocrinology: Case Reports and Clinical Investigations: Official Journal of the Japanese Society for Pediatric Endocrinology
https://www.readbyqxmd.com/read/29025383/repair-of-bile-duct-injury-with-autologous-vein-graft-and-stent
#6
Bin Xie, Haiping Luo, Xinglong Yang, Yanping Zhao, Chongwu He, Xiaobin Wan, Zhitao Xu, Xingwei Yu, Wubo Liu, Qiang Liu
OBJECTIVES: We investigated the effects of autologous vein transplant on bile duct injury repair, through observation of the hepatic and biliary system tissue morphology changes and animal survival after bile duct injury repair. MATERIALS AND METHODS: Rabbits were equally divided into groups. Group A had cholecystectomy and common bile duct resection (length of 0.5 cm), transplant of an autologous vein (length of 0.5 cm), and stent implant. Group B had cholecystectomy and common bile duct resection (length of 1...
October 12, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29023811/placental-growth-factor-inhibition-targets-pulmonary-angiogenesis-and-represents-a-novel-therapy-for-hepatopulmonary-syndrome-in-mice
#7
Sarah Raevens, Anja Geerts, Annelies Paridaens, Sander Lefere, Xavier Verhelst, Anne Hoorens, Jo Van Dorpe, Tania Maes, Ken R Bracke, Christophe Casteleyn, Bart Jonckx, Thomas Horvatits, Valentin Fuhrmann, Hans Van Vlierberghe, Christophe Van Steenkiste, Lindsey Devisscher, Isabelle Colle
Hepatopulmonary syndrome (HPS) is a severe complication of cirrhosis with increased risk of mortality. Pulmonary microvascular alterations are key features of HPS, but underlying mechanisms are incompletely understood, and studies on HPS are limited to rats. Placental growth factor (PlGF), a pro-angiogenic molecule that is selectively involved in pathological angiogenesis, may play an important role in HPS development, however, its role has never been investigated. In this study, we validated an HPS model by common bile duct ligation (CBDL) in mice, investigated the kinetic changes in pulmonary angiogenesis and inflammation during HPS development, and provide evidence for a novel therapeutic strategy by targeting pathological angiogenesis...
October 10, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/29018018/acute-pancreatitis-as-an-unusual-presentation-of-primary-splenic-lymphoma
#8
Elisa Gravito-Soares, Marta Gravito-Soares, José Eduardo Pina-Cabral, Luis Tomé
A 51-year-old man with no relevant medical history presents to the emergency department complaining of a recent worsening of few months upper abdominal pain with back radiation and postprandial fullness, without B symptoms. Laboratory analysis showed hyperamylasaemia, elevated lactate dehydrogenase and inflammatory parameters. Abdominal ultrasonography revealed a heterogeneous solid mass in the spleen/splenic hilum with pancreatic parenchyma continuity and no biliary tract dilation or gallstones. A mild acalculous acute pancreatitis diagnosis was made...
October 10, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29017397/liver-scaffolds-support-survival-and-metabolic-function-of-multilineage-neonatal-allogenic-cells
#9
Wessam Hassanein, Arielle Cimeno, Avraham Werdesheim, Bryan Buckingham, Joshua Harrison, Mehmet C Uluer, Ali Khalifeh, Carlos Rivera-Pratts, Stephen Klepfer, Jhade D Woodall, Urmil Dhru, Elliot Bromberg, Dawn Parsell, Cinthia Drachenberg, Rolf N Barth, John C LaMattina
Organ scaffold bioengineering is currently limited by the inability to effectively repopulate the scaffold with appropriately distributed functional cells. We examined the feasibility of a decellularized liver scaffold to support the growth and function of multilineage allogenic cells derived from either adult or neonatal liver cells. Cell slurries from neonatal and adult rat livers containing hepatocytes, cholangiocytes, and endothelial cells were introduced into decellularized adult rat liver scaffolds via the bile duct...
October 10, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28975360/beyond-detoxification-a-role-for-mouse-meh-in-the-hepatic-metabolism-of-endogenous-lipids
#10
Anne Marowsky, Imke Meyer, Kira Erismann-Ebner, Giovanni Pellegrini, Nandkishor Mule, Michael Arand
Microsomal and soluble epoxide hydrolase (mEH and sEH) fulfill apparently distinct roles: Whereas mEH detoxifies xenobiotics, sEH hydrolyzes fatty acid (FA) signaling molecules and is thus implicated in a variety of physiological functions. These epoxy FAs comprise epoxyeicosatrienoic acids (EETs) and epoxy-octadecenoic acids (EpOMEs), which are formed by CYP epoxygenases from arachidonic acid (AA) and linoleic acid, respectively, and then are hydrolyzed to their respective diols, the so-called DHETs and DiHOMEs...
October 3, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28970250/sirt1-antagonizes-liver-fibrosis-by-blocking-hepatic-stellate-cell-activation-in-mice
#11
Min Li, Wenxuan Hong, Chenzhi Hao, Luyang Li, Dongmei Wu, Aiguo Shen, Jun Lu, Yuanlin Zheng, Ping Li, Yong Xu
Hepatic stellate cells (HSCs) are a major source of fibrogenesis in the liver contributing to cirrhosis. When activated, HSCs transdifferentiate into myofibroblast and undergo profound functional alterations paralleling an overhaul of the transcriptome, the mechanism of which remains largely undefined. We investigated the involvement of the class III deacetylase sirtuin (silent information regulator 1, SIRT1) in HSC activation and liver fibrosis. SIRT1 levels were down-regulated in the livers in mouse models of liver fibrosis, in patients with cirrhosis, and in activated HSCs as opposed to quiescent HSCs...
September 26, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28960647/long-term-fate-of-human-fetal-liver-progenitor-cells-transplanted-in-injured-mouse-livers
#12
Antony Irudayaswamy, Mark Muthiah, Lei Zhou, Hau Hung, Nur Halisah Bte Jumat, Jamil Haque, Narcissus Teoh, Geoffrey Farrell, Kimberly J Riehle, Jaymie Siqi Lin, Lin Lin Su, Jerry Ky Chan, Mahesh Choolani, Peng Cheang Wong, Aileen Wee, Seng Gee Lim, Jean Campbell, Nelson Fausto, Yock Young Dan
Liver progenitor cells have the potential to repair and regenerate a diseased liver. The success of any translational efforts, however, hinges on thorough understanding of the fate of these cells after transplant, especially in terms of long-term safety and efficacy. Here, we report transplantation of a liver progenitor population isolated from human fetal livers into immune-permissive mice with follow-up up to 36 weeks after transplant. We found that human progenitor cells engraft and differentiate into functional human hepatocytes in the mouse, producing albumin, alpha-1-antitrypsin, and glycogen...
September 28, 2017: Stem Cells
https://www.readbyqxmd.com/read/28943450/pathological-features-of-primary-sclerosing-cholangitis-identified-by-bile-proteomic-analysis
#13
C Rupp, K A Bode, Y Leopold, P Sauer, D N Gotthardt
Primary sclerosing cholangitis (PSC) is a chronic cholestatic liver disease of unknown origin. Previous bile proteomic analyses in patients with PSC have revealed changes in disease activity specific to malignant transformation. In this study, we established a reference bile duct-derived bile proteome for PSC that can be used to evaluate biliary pathophysiology. Samples were collected from patients with PSC or with choledocholithiasis (control) (n=6 each). Furthermore, patients with PSC-associated cholangiocarcinoma (CC) and with CC without concomitant PSC were analyzed...
September 22, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28928925/the-fortuitous-repair-of-a-common-bile-duct-injury-following-placement-of-a-percutaneous-transhepatic-cholangiogram-catheter
#14
Branum G Griswold, Jared A White
Common bile duct injuries are associated with a high rate of morbidity and mortality and are discussed frequently in the literature. These injuries may be difficult to diagnose intraoperatively and are often challenging to repair, necessitating referral to hepatobiliary surgery specialists at academic institutions. This case report highlights the management of a completely disrupted common bile duct identified post-operatively using a percutaneous transhepatic cholangiography (PTC) catheter to bridge the gap between the proximal and distal ductal injury prior to operative repair...
September 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/28927252/microangiopathic-hemolytic-anemia-caused-by-a-signet-ring-cell-carcinoma-of-the-intrahepatic-bile-duct
#15
Ramy Younes, Paola Ponzo, Alfredo Marzano
Microangiopathic hemolytic anemia (MAHA) originates from a mechanical injury of red cells, caused by vascular thrombosis or stenosis. Cancer is a cause of MAHA as a consequence of both chemotherapy and disseminated disease itself. Here we describe the case of a 60-year-old man who developed a signet-ring cell carcinoma originated from the intrahepatic bile ducts, complicated by bone marrow metastasis and MAHA.
December 2017: Minerva Gastroenterologica e Dietologica
https://www.readbyqxmd.com/read/28926118/chop-induced-loss-of-intestinal-epithelial-stemness-contributes-to-bile-duct-ligation-induced-cholestatic-liver-injury
#16
Runping Liu, Xiaojiaoyang Li, Zhiming Huang, Derrick Zhao, Bhagyalaxmi Sukka Ganesh, Guanhua Lai, William M Pandak, Phillip B Hylemon, Jasmohan S Bajaj, Arun J Sanyal, Huiping Zhou
Impaired intestinal barrier function promotes the progression of various liver diseases including cholestatic liver disease. The close association of primary sclerosing cholangitis (PSC) with inflammatory bowel disease highlights the importance of the gut-liver axis. It has been reported that bile duct ligation (BDL)-induced liver fibrosis is significantly reduced in C/EBP homologous protein knock out (CHOP(-/-) ) mice. However, the underlying mechanisms remain unclear. In the current study, we demonstrate that BDL induces striking and acute hepatic ER stress responses after 1 day, which return to normal after 3 days...
September 19, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28922472/mirna-506-promotes-primary-biliary-cholangitis-like-features-in-cholangiocytes-and-immune-activation
#17
Oihane Erice, Patricia Munoz-Garrido, Javier Vaquero, Maria J Perugorria, Maite G Fernandez-Barrena, Elena Saez, Alvaro Santos-Laso, Ander Arbelaiz, Raul Jimenez-Agüero, Joaquin Fernandez-Irigoyen, Enrique Santamaria, Verónica Torrano, Arkaitz Carracedo, Meenakshisundaram Ananthanarayanan, Marco Marzioni, Jesus Prieto, Ulrich Beuers, Ronald P Oude Elferink, Nicholas F LaRusso, Luis Bujanda, Jose J G Marin, Jesus M Banales
Primary biliary cholangitis (PBC) is a chronic cholestatic liver disease associated with autoimmune phenomena targeting intrahepatic bile duct cells (cholangiocytes). Although PBC etiopathogenesis still remains obscure, development of anti-mitochondrial auto-antibodies against pyruvate dehydrogenase complex-E2 (PDC-E2) is a common feature. MicroRNA (miR) dysregulation occurs in liver and immune cells of PBC patients, but their functional relevance is largely unknown. We previously reported that miR-506 is overexpressed in PBC cholangiocytes and directly targets both Cl(-) /HCO3(-) anion exchanger 2 (AE2) and type III inositol 1,4,5-trisphosphate receptor (InsP3R3), leading to cholestasis...
September 18, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28916868/laparoscopic-liver-resection-using-a-monopolar-soft-coagulation-device-to-provide-maximum-intraoperative-bleeding-control-for-the-treatment-of-hepatocellular-carcinoma
#18
Mitsuo Miyazawa, Masayasu Aikawa, Katsuya Okada, Yukihiro Watanabe, Kojun Okamoto, Isamu Koyama
BACKGROUND: The popularity of laparoscopic liver resection (LLR) is spreading, worldwide, because the intraoperative blood loss is less than for open hepatectomy and it is associated with a shorter hospitalization period [1-6]. During LLR, intraoperative hemostasis is difficult to achieve, unlike during laparotomy where bleeding can be stopped instantly [7-10]. Our LLR method for the treatment of hepatocellular carcinoma (HCC) includes maximal control of intraoperative bleeding using a monopolar soft-coagulation device...
September 15, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28916723/fibroblast-growth-factor-2-fgf2-regulates-cytoglobin-expression-and-activation-of-human-hepatic-stellate-cells-via-jnk-signaling
#19
Misako Sato-Matsubara, Tsutomu Matsubara, Atsuko Daikoku, Yoshinori Okina, Lisa Longato, Krista Rombouts, Le Thi Thanh Thuy, Jun Adachi, Takeshi Tomonaga, Kazuo Ikeda, Katsutoshi Yoshizato, Massimo Pinzani, Norifumi Kawada
Cytoglobin (CYGB) belongs to the mammalian globin family and is exclusively expressed in hepatic stellate cells (HSCs) in the liver. In addition to its gas-binding ability, CYGB is relevant to hepatic inflammation, fibrosis, and cancer because of its antioxidative properties; however, the regulation of CYGB gene expression remains unknown. Here, we sought to identify factors that induce CYGB expression in HSCs and to clarify the molecular mechanism involved. We used the human HSC cell line HHSteC and primary human HSCs isolated from intact human liver tissues...
September 15, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28915589/casticin-attenuates-liver-fibrosis-and-hepatic-stellate-cell-activation-by-blocking-tgf-%C3%AE-smad-signaling-pathway
#20
Ling Zhou, Xiaoying Dong, Linlin Wang, Lanlan Shan, Ting Li, Wanfu Xu, Yan Ding, Mingqiang Lai, Xiaojun Lin, Meng Dai, Xiaochun Bai, Chunhong Jia, Hang Zheng
Although many advances have been made in understanding the pathogenesis of liver fibrosis, few options are available for treatment. Casticin, one of the major flavonoids in Fructus Viticis extracts, has shown hepatoprotective potential, but its effects on liver fibrosis are not clear. In this study, we investigated the antifibrotic activity of casticin and its underlying mechanism in vivo and in vitro. Male mice were injected intraperitoneally with carbon tetrachloride (CCl4) or underwent bile duct ligation (BDL) to induce liver fibrosis, followed by treatment with casticin or vehicle...
August 22, 2017: Oncotarget
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