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Cholestasis

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https://www.readbyqxmd.com/read/28229615/bacteremia-with-raoultella-planticola-in-the-setting-of-acute-pancreatitis-complicated-with-acute-cholangitis
#1
Esther Merino Rodríguez, Susana Rebolledo Olmedo, Joaquín Miquel Plaza
The bacterium Raoultella planticola (R planticola) is a rare pathogen in humans. We report a case of mild acute pancreatitis (MAP) of biliary origin with cholangitis and bacteremia with R planticola in association with pancreatic panniculitis (PP). A 55-year-old woman with rheumatic multiple valvulopathy presented with epigastric pain radiating to the back in a belt-like fashion for 48 hours, jaundice, choluria, acholia, and fever (38.2oC). Lab tests showed: amylase 2126 U/L, ALT 124 U/L, AST 169 U/L, GGT 3548 U/L, AP 1516 U/L, TBil 12...
February 23, 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28229073/epidemiology-and-risk-factors-of-cholangiocarcinoma
#2
Martha M Kirstein, Arndt Vogel
BACKGROUND: Cholangiocarcinoma (CCA) is the second most common primary liver cancer, being characterized by its late diagnosis and fatal outcome. Recent epidemiological reports indicate an increasing worldwide incidence of intrahepatic CCA but a decreasing incidence of extrahepatic CCA. METHODS: In this review, we present an overview of the incidence and epidemiology of CCA and possible strategies for screening and surveillance. RESULTS: Efficient strategies for the screening and surveillance of CCA have not been established so far...
December 2016: Visceral Medicine
https://www.readbyqxmd.com/read/28223721/current-and-future-therapies-for-inherited-cholestatic-liver-diseases
#3
REVIEW
Wendy L van der Woerd, Roderick Hj Houwen, Stan Fj van de Graaf
Familial intrahepatic cholestasis (FIC) comprises a group of rare cholestatic liver diseases associated with canalicular transport defects resulting predominantly from mutations in ATP8B1, ABCB11 and ABCB4. Phenotypes range from benign recurrent intrahepatic cholestasis (BRIC), associated with recurrent cholestatic attacks, to progressive FIC (PFIC). Patients often suffer from severe pruritus and eventually progressive cholestasis results in liver failure. Currently, first-line treatment includes ursodeoxycholic acid in patients with ABCB4 deficiency (PFIC3) and partial biliary diversion in patients with ATP8B1 or ABCB11 deficiency (PFIC1 and PFIC2)...
February 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28223719/hepatitis-c-virus-associated-pruritus-etiopathogenesis-and-therapeutic-strategies
#4
EDITORIAL
Youssef Alhmada, Denis Selimovic, Fadi Murad, Sarah-Lilly Hassan, Youssef Haikel, Mossaad Megahed, Matthias Hannig, Mohamed Hassan
In addition to its contributing role in the development of chronic liver diseases, chronic hepatitis C virus (HCV) infection is associated with extrahepatic manifestations, particularly, cutaneous-based disorders including those with pruritus as a symptom. Pruritus is frequently associated with the development of chronic liver diseases such as cholestasis and chronic viral infection, and the accumulation of bile acids in patients' sera and tissues as a consequence of liver damage is considered the main cause of pruritus...
February 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28222887/rare-er-protein-misfolding-mistrafficking-disorders-therapeutic-developments
#5
REVIEW
Ramanath Narayana Hegde, Advait Subramanian, Prathyush Pothukuchi, Seetharaman Parashuraman, Alberto Luini
The presence of a functional protein at the appropriate location in the cell is the result of the processes of transcription, translation, folding and trafficking to the correct destination. There are numerous diseases that are caused by protein misfolding, mainly due to mutations in the respective gene. The consequences of this misfolding may be that proteins effectively lose their function, either by being removed by the cellular quality control machinery or by accumulating at the incorrect intracellular or extracellular location...
February 9, 2017: Tissue & Cell
https://www.readbyqxmd.com/read/28222247/bile-acids-and-cardiovascular-function-in-cirrhosis
#6
Andrei Voiosu, Signe Wiese, Theodor Voiosu, Flemming Bendtsen, Søren Møller
Cirrhotic cardiomyopathy and the hyperdynamic syndrome are clinically important complications of cirrhosis but their exact pathogenesis is still partly unknown. Experimental models have proven the cardiotoxic effects of bile acidsand recent studies of their varied receptor-mediated functions offer new insight into their involvement in cardiovascular dysfunction in cirrhosis. Bile acid receptors such as farnesoid X-activated receptor and TGR5 are currently under investigation as potential therapeutic targets in a variety of pathological conditions...
February 21, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28220208/abcb4-missense-mutations-d243a-k435t-g535d-i490t-r545c-and-s978p-significantly-impair-the-lipid-floppase-and-likely-predispose-to-secondary-pathologies-in-the-human-population
#7
Edward J Andress, Michael Nicolaou, Farrell McGeoghan, Kenneth J Linton
Bile salts are natural detergents required to solubilise dietary fat and lipid soluble vitamins. They are synthesised in hepatocytes and secreted into the luminal space of the biliary tree by the bile salt export pump (BSEP), an ATP-binding cassette (ABC) transporter in the canalicular membrane. BSEP deficiency causes cytotoxic accumulation of bile salts in the hepatocyte that results in mild-to-severe forms of cholestasis. The resulting inflammation can also progress to hepatocellular cancer via a novel mechanism involving upregulation of proliferative signalling pathways...
February 20, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28214689/paeoniflorin-ameliorates-cholestasis-via-regulating-hepatic-transporters-and-suppressing-inflammation-in-anit-fed-rats
#8
Yanling Zhao, Xuan He, Xiao Ma, Jianxia Wen, Pengyan Li, Jiabo Wang, Ruisheng Li, Yun Zhu, Shizhang Wei, Haotian Li, Xuelin Zhou, Kun Li, Honghong Liu, Xiaohe Xiao
Paeoniflorin has shown the obvious effect on cholestasis according to our previous research. However, its mechanism has not been absolutely explored yet. This study aims at evaluating the potential effect of paeoniflorin on alpha-naphthylisothiocyanate (ANIT) -induced cholestasis by inhibiting nuclear factor kappa-B (NF-κB) and simultaneously regulating hepatocyte transporters. Cholestasis was induced by administration of ANIT. The effect of paeoniflorin on serum indices such as total bilirubin (TBIL), direct bilirubin (DBIL), aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP), γ-glutamyltranspeptidase (γ-GT), total bile acid (TBA) and histopathology of liver were determined...
February 16, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28203129/plasmapheresis-for-refractory-pruritus-due-to-drug-induced-cholestasis
#9
Hasan Al-Azzawi, Ruchi Patel, Gagan Sood, Sumit Kapoor
Pruritus can be a distressing symptom seen in various cholestatic disorders. It is treated with medications like bile acid sequestrants. Drug-induced cholestasis usually resolves with withdrawal of the causative medication. We describe a case of refractory pruritus due to drug-induced cholestasis, not improved with withdrawal of the drug, managed effectively with multiple sessions of plasmapheresis.
September 2016: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/28202577/nimesulide-and-4-hydroxynimesulide-as-bile-acid-transporters-inhibitors-are-contributory-factors-for-drug-induced-cholestasis
#10
Lei Zhou, Xiaoyan Pang, Jingfang Jiang, Dafang Zhong, Xiaoyan Chen
Nimesulide (NIM) is a classic nonsteroidal anti-inflammatory drug. However, some patients treated with NIM suffered from cholestatic liver injury. For this reason, we investigated the potential mechanism underlying NIM-induced cholestasis by using in vivo and in vitro models. Oral administration of 100 mg/kg/day NIM to Wistar rats for 5 days increased the levels of plasma total bile acids, alkaline phosphatase, alanine aminotransferase, and aspartate aminotransferase by 1.49-, 1.31-, 1.60-, and 1.29-fold, respectively...
February 15, 2017: Drug Metabolism and Disposition: the Biological Fate of Chemicals
https://www.readbyqxmd.com/read/28201850/novel-treatment-strategies-for-primary-biliary-cholangitis
#11
Albert Parés
Despite the presumed immunological pathogenesis of primary biliary cholangitis, no clear or even harmful consequences have resulted from treatments designed to modify the immunological condition. Ursodeoxycholic acid (13-16 mg/kg/d) has, however, clear favorable effects that not only improve biochemical cholestasis, but also delay histological progression. Long-term treatment with ursodeoxycholic acid is associated with excellent transplant-free survival in cases showing a biochemical response at 1 year. Data on the effects of obeticholic acid and fibrates are encouraging...
February 2017: Seminars in Liver Disease
https://www.readbyqxmd.com/read/28196718/the-neuropeptide-galanin-is-up-regulated-during-cholestasis-and-contributes-to-cholangiocyte-proliferation
#12
Matthew McMillin, Gabriel Frampton, Stephanie Grant, Sharon DeMorrow
During the course of cholestatic liver diseases, mitotically dormant cholangiocytes proliferate and subsequently acquire a neuroendocrine phenotype. Galanin is a neuroendocrine factor responsible for regulation of physiological responses, such as feeding behavior and mood, and has been implicated in the development of fatty liver disease, although its role in biliary hyperplasia is unknown. Biliary hyperplasia was induced in rats via bile duct ligation (BDL) surgery, and galanin was increased in serum and liver homogenates from BDL rats...
February 11, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28195083/progressive-familial-intrahepatic-cholestasis-a-comprehensive-review-of-a-challenging-liver-disease
#13
REVIEW
Kavita Gaur, Puja Sakhuja
Cholestatic liver disease in children represents a diagnostic and therapeutic challenge. The requirement of a multidisciplinary approach, high levels of professional expertise, and the costs of genetic testing are a few of the reasons why such patients may suffer for want of an accurate diagnosis. Progressive familial intrahepatic cholestasis (PFIC) is a hereditary cholestatic liver disease, afflicted children often progressing to liver failure. Despite its potential to cause significant morbidity, it has seldom been studied in India...
January 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28194287/acute-acalculous-cholecystitis-a-rare-presentation-of-primary-epstein-barr-virus-infection-in-adults-case-report-and-review-of-the-literature
#14
Zuhal Yesilbag, Asli Karadeniz, Fatih Oner Kaya
Primary Epstein-Barr virus (EBV) infection is almost always a self-limited disease characterized by sore throat, fever, and lymphadenopathy. Hepatic involvement is usually characterized by mild elevations of aminotransferases and resolves spontaneously. Although isolated gallbladder wall thickness has been reported in these patients, acute acalculous cholecystitis is an atypical presentation of primary EBV infection. We presented a young women admitted with a 10-day history of fever, nausea, malaise who had jaundice and right upper quadrant tenderness on the physical examination...
2017: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/28193264/the-clinical-picture-of-cachexia-a-mosaic-of-different-parameters-experience-of-503-patients
#15
S Schwarz, O Prokopchuk, K Esefeld, S Gröschel, J Bachmann, S Lorenzen, H Friess, M Halle, M E Martignoni
BACKGROUND: Despite our growing knowledge about the pathomechanisms of cancer cachexia, a whole clinical picture of the cachectic patient is still missing. Our objective was to evaluate the clinical characteristics in cancer patients with and without cachexia to get the whole picture of a cachectic patient. METHODS: Cancer patients of the University Clinic "Klinikum rechts der Isar" with gastrointestinal, gynecological, hematopoietic, lung and some other tumors were offered the possibility to take part in the treatment concept including a nutrition intervention and an individual training program according to their capability...
February 14, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28188341/evaluation-of-transcriptomic-signature-as-a-valuable-tool-to-study-drug-induced-cholestasis-in-primary-human-hepatocytes
#16
Céline Parmentier, Philippe Couttet, Armin Wolf, Thomas Zaccharias, Bruno Heyd, Philippe Bachellier, Marianne Uteng, Lysiane Richert
Primary human hepatocyte (PHH) sandwich cultures from five different donors were daily exposed to cyclosporine A (CsA), ibuprofen (IBU), chlorpromazine (CPZ), amiodarone (AMI) and paracetamol (APAP) at their respective Cmax (total) for short-term (1-3 days) and long-term treatment (14 days). Whole genome mRNA profiles (34,693 genes in total) were conducted using an Illumina microarray platform. The impact of compound treatments on gene signatures involved in liver differentiation, cholestasis and in bile acid homeostasis was evaluated...
February 10, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28178654/hepatitis-b-virus-surface-proteins-accelerate-cholestatic-injury-and-tumor-progression-in-abcb4-knockout-mice
#17
Daniel Zahner, Hannah Glimm, Tomomitsu Matono, Yuri Churin, Diran Herebian, Ertan Mayatepek, Kernt Köhler, Stefan Gattenlöhner, Anne Stinn, Annette Tschuschner, Martin Roderfeld, Elke Roeb
: Understanding of the pathophysiology of cholestasis associated carcinogenesis could challenge the development of new personalized therapeutic approaches and thus improve prognosis. Simultaneous damage might aggravate hepatic injury, induce chronic liver disease and even promote carcinogenesis. We aimed to study the effect of Hepatitis B virus surface protein (HBsAg) on cholestatic liver disease and associated carcinogenesis in a mouse model combining both impairments. Hybrids of Abcb4-/- and HBsAg transgenic mice were bred on fibrosis susceptible background BALB/c...
February 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28176353/lysophosphatidic-acid-induced-itch-is-mediated-by-signaling-of-lpa5-receptor-phospholipase-d-and-trpa1-trpv1
#18
Hiroki Kittaka, Kunitoshi Uchida, Naomi Fukuta, Makoto Tominaga
Intractable and continuous itch sensations often accompany diseases such as atopic dermatitis, neurogenic lesions, uremia and cholestasis. Lysophosphatidic acid (LPA) is an itch mediator found in cholestatic itch patients and it induces acute itch and pain in the experimental rodent models. However, the molecular mechanism by which LPA activates peripheral sensory neurons remains unknown. In this study, we used a cheek injection method in mice to reveal that LPA induced itch-related behaviors but not pain-related behaviors...
February 8, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28166633/predicting-drug-induced-cholestasis-with-the-help-of-hepatic-transporters-an-in-silico-modeling-approach
#19
Eleni Kotsampasakou, Gerhard F Ecker
Cholestasis represents one out of three types of drug induced liver injury (DILI), which comprises a major challenge in drug development. In this study we applied a two-class classification scheme based on k-nearest neighbors in order to predict cholestasis, using a set of 93 2D physicochemical descriptors and predictions of selected hepatic transporters' inhibition (BSEP, BCRP, P-gp, OATP1B1 and OATP1B3). In order to assess the potential contribution of transporter inhibition, we compared whether the inclusion of the transporters' inhibition predictions contributes to a significant increase in model performance in comparison to the plain use of the 93 2D physicochemical descriptors...
February 7, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/28163717/four-major-factors-contributing-to-intrahepatic-stones
#20
REVIEW
Xi Ran, Baobing Yin, Baojin Ma
Intrahepatic stone is prevalent in Asian countries; though the incidence declines in recent years, the number of patients is still in a large quantity. Because of multiple complications, high recurrence rates, serious systemic damage, and a lack of extremely effective procedure for the management, it is more important to find out the etiology and pathogenesis of intrahepatic stones to prevent the disease from happening and developing rather than curing. A number of factors contribute to the development of the disease, such as cholestasis, infection, and anatomic abnormity of bile duct and bile metabolic defect...
2017: Gastroenterology Research and Practice
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