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https://www.readbyqxmd.com/read/29690903/ccl20-is-up-regulated-in-non-alcoholic-fatty-liver-disease-fibrosis-and-is-produced-by-hepatic-stellate-cells-in-response-to-fatty-acid-loading
#1
Xin Chu, Qunyan Jin, Hui Chen, G Craig Wood, Anthony Petrick, William Strodel, Jon Gabrielsen, Peter Benotti, Tooraj Mirshahi, David J Carey, Christopher D Still, Johanna K DiStefano, Glenn S Gerhard
BACKGROUND: Nonalcoholic fatty liver disease (NAFLD) is a prevalent complication of extreme obesity. Loading of the liver with fat can progress to inflammation and fibrosis including cirrhosis. The molecular factors involved in the progression from simple steatosis to fibrosis remain poorly understood. METHODS: Gene expression profiling using microarray, PCR array, and RNA sequencing was performed on RNA from liver biopsy tissue from patients with extreme obesity...
April 24, 2018: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29690638/neurotensin-is-a-lipid-induced-gastrointestinal-peptide-associated-with-visceral-adipose-tissue-inflammation-in-obesity
#2
Ilaria Barchetta, Flavia Agata Cimini, Danila Capoccia, Laura Bertoccini, Valentina Ceccarelli, Caterina Chiappetta, Frida Leonetti, Claudio Di Cristofano, Gianfranco Silecchia, Marju Orho-Melander, Olle Melander, Maria Gisella Cavallo
Neurotensin (NT) is a 13-amino acid peptide localized in the neuroendocrine cells of the small intestine, which promotes fat absorption and fatty acids translocation in response to lipid ingestion. NT-knock-out mice fed with a high-fat diet are protected from obesity, fatty liver, and the development of insulin-resistance. In humans, higher plasma levels of pro-NT, which is the stable circulating precursor of NT, predict obesity, type 2 diabetes (T2D), and cardiovascular disease. In obesity, the presence of visceral adipose tissue (VAT) inflammation leads to unfavorable metabolic outcomes and is associated with the development of T2D and non-alcoholic fatty liver disease (NAFLD)...
April 23, 2018: Nutrients
https://www.readbyqxmd.com/read/29690611/the-role-of-ppar-and-its-cross-talk-with-car-and-lxr-in-obesity-and-atherosclerosis
#3
REVIEW
Pengfei Xu, Yonggong Zhai, Jing Wang
The prevalence of obesity and atherosclerosis has substantially increased worldwide over the past several decades. Peroxisome proliferator-activated receptors (PPARs), as fatty acids sensors, have been therapeutic targets in several human lipid metabolic diseases, such as obesity, atherosclerosis, diabetes, hyperlipidaemia, and non-alcoholic fatty liver disease. Constitutive androstane receptor (CAR) and liver X receptors (LXRs) were also reported as potential therapeutic targets for the treatment of obesity and atherosclerosis, respectively...
April 23, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29689264/disruption-of-epithelial-hdac3-in-intestine-prevents-diet-induced-obesity-in-mice
#4
Jordan Whitt, Vivienne Woo, Patrick Lee, Jessica Moncivaiz, Yael Haberman, Lee Denson, Patrick Tso, Theresa Alenghat
BACKGROUND & AIMS: Intestinal microbiota modulate metabolism and associate closely with epithelial cells in the intestine. In intestinal epithelial cells (IECs), histone deacetylase 3 (HDAC3) integrates microbiota-derived signals to control intestinal homeostasis. We investigated whether HDAC3 in IECs regulates metabolism and the development of obesity in mice. METHODS: Adult C57BL/6 (control) mice and mice with constitutive or inducible IEC-specific disruption of Hdac3 (HDAC3ΔIEC mice) were placed on a standard chow or high-fat diet (HFD, 60% kcal from fat)...
April 21, 2018: Gastroenterology
https://www.readbyqxmd.com/read/29689125/directed-solutions-to-address-differences-in-access-to-liver-transplantation
#5
Fei Ye, Quanhu Sheng, Irene D Feurer, Zhiguo Zhao, Run Fan, Jing Teng, Jie Ping, Scott A Rega, Douglas W Hanto, Yu Shyr, Seth J Karp
The United Network for Organ Sharing recently altered current liver allocation with the goal of decreasing Model for End-stage Liver Disease (MELD) variance at transplant. Concerns over these and further planned revisions to policy include predicted decrease in total transplants, increased flying and logistical complexity, adverse impact on areas with poor quality health care, and minimal effect on high MELD Donor Service Areas (DSAs). To address these issues, we describe general approaches to equalize critical transplant metrics among regions and determine how they alter MELD variance at transplant and organ supply to underserved communities...
April 24, 2018: American Journal of Transplantation
https://www.readbyqxmd.com/read/29688484/effect-of-the-catechol-o-methyltransferase-inhibitors-tolcapone-and-entacapone-on-fatty-acid-metabolism-in-heparg-cells
#6
David Grünig, Andrea Felser, Urs Duthaler, Jamal Bouitbir, Stephan Krähenbühl
Tolcapone and entacapone are catechol-O-methyltransferase (COMT) inhibitors used in patients with Parkinson's disease. For tolcapone, patients with liver failure have been reported with microvesicular steatosis observed in the liver biopsy of one patient. We therefore investigated the impact of tolcapone and entacapone on fatty acid metabolism in HepaRG cells exposed for 24 hours and on acutely exposed mouse liver mitochondria. In HepaRG cells, tolcapone induced lipid accumulation starting at 100µM, whereas entacapone was ineffective up to 200µM...
April 23, 2018: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29688336/nonalcoholic-fatty-liver-disease-in-inflammatory-bowel-disease-prevalence-and-risk-factors
#7
Principi Mariabeatrice, Iannone Andrea, Losurdo Giuseppe, Mangia Michela, Shahini Endrit, Albano Francesca, Salvatore Fabio Rizzi, Rosa Federica La Fortezza, Lovero Rosa, Contaldo Antonella, Barone Michele, Leandro Gioacchino, Ierardi Enzo, Di Leo Alfredo
Background: Nonalcoholic fatty liver disease (NAFLD) is common in inflammatory bowel diseases (IBD). Herein, NAFLD prevalence and risk factors in a large IBD cohort were evaluated and compared to that of a non-IBD sample. Methods: Crohn's disease/ulcerative colitis outpatients referred to IBD service of our Gastroenterology Unit were enrolled. Subjects affected by functional and motor gastrointestinal disorders, in whom IBD was ruled out, referred to general outpatient service in the same area, were considered as nonIBD group...
April 23, 2018: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/29686469/evaluation-of-safety-for-hepatectomy-in-a-novel-mouse-model-with-nonalcoholic-steatohepatitis
#8
Yusuke Ozawa, Takafumi Tamura, Yohei Owada, Yoshio Shimizu, Akira Kemmochi, Katsuji Hisakura, Takashi Matsuzaka, Hitoshi Shimano, Hiroko Isoda, Nobuhiro Ohkohchi
AIM: To investigate whether the liver resection volume in a newly developed nonalcoholic steatohepatitis (NASH) model influences surgical outcome. METHODS: For establishment of a NASH model, mice were fed a high-fat diet for 4 wk, administered CCl4 for the last 2 wk, and administered T0901317 for the last 5 d. We divided these mice into two groups: A 30% partial hepatectomy (PH) of NASH liver group and a 70% PH of NASH liver group. In addition, a 70% PH of normal liver group served as the control...
April 21, 2018: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29686467/multiomics-biomarkers-for-the-prediction-of-nonalcoholic-fatty-liver-disease-severity
#9
REVIEW
Carlos J Pirola, Silvia Sookoian
This review intends to uncover how information from large-scale genetic profiling (whole genome sequencing, and whole exome sequencing) of nonalcoholic fatty liver disease (NAFLD), as well as information from circulating transcriptomics (cell-free miRNAs) and metabolomics, contributes to the understanding of NAFLD pathogenesis. A further aim is to address the question of whether OMICs information is ready to be implemented in the clinics. The available evidence suggests that any new knowledge pertaining to molecular signatures associated with NAFLD and nonalcoholic steatohepatitis should be promptly translated into the clinical setting...
April 21, 2018: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29686465/ultrasound-findings-in-autoimmune-hepatitis
#10
REVIEW
Yi Dong, Andrej Potthoff, Christoph Klinger, Ana Paula Barreiros, Dariusz Pietrawski, Christoph F Dietrich
Ultrasound findings in autoimmune hepatitis (AIH) have not been reported systematically so far. The use of reliable and accurate noninvasive methods for determining fibrosis stage is important in evaluation of treatment efficacy and fibrosis regression in AIH. Imaging plays an important role in detection of complications and ruling out other possible causes of chronic liver diseases. Ultrasound elastography cut-off values in AIH patients are not the same as those in patients with chronic viral hepatitis or non-alcoholic fatty liver disease...
April 21, 2018: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29686404/systems-biology-in-hepatology-approaches-and-applications
#11
REVIEW
Adil Mardinoglu, Jan Boren, Ulf Smith, Mathias Uhlen, Jens Nielsen
Detailed insights into the biological functions of the liver and an understanding of its crosstalk with other human tissues and the gut microbiota can be used to develop novel strategies for the prevention and treatment of liver-associated diseases, including fatty liver disease, cirrhosis, hepatocellular carcinoma and type 2 diabetes mellitus. Biological network models, including metabolic, transcriptional regulatory, protein-protein interaction, signalling and co-expression networks, can provide a scaffold for studying the biological pathways operating in the liver in connection with disease development in a systematic manner...
April 23, 2018: Nature Reviews. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29685617/validation-of-transient-elastography-cut-points-to-assess-advanced-liver-fibrosis-in-children-and-young-adults-the-boston-children-s-hospital-experience
#12
Christine K Lee, Paul D Mitchell, Roshan Raza, Sarah Harney, Shanna M Wiggins, Maureen M Jonas
OBJECTIVE: To derive an optimal liver stiffness measurement cut point to discriminate METAVIR fibrosis stage F4 and to validate both METAVIR fibrosis stage F3-F4 and F4 cut points in a separate cohort. STUDY DESIGN: Patients at Boston Children's Hospital with liver stiffness measurement from 2006 to 2016 and liver biopsy ≤12 months before screening were eligible. Patients enrolled 2006-2011 were used to calibrate liver stiffness measurement cut points and those enrolled 2011-2016 for validation...
April 20, 2018: Journal of Pediatrics
https://www.readbyqxmd.com/read/29684791/the-role-of-promyelocytic-leukemia-protein-in-steatosis-associated-hepatic-tumors-related-to-chronic-hepatitis-b-virus-infection
#13
Yih-Lin Chung, Mei-Ling Wu
The persistence of hepatitis B surface antigen (HBsAg) is a risk factor for the development of steatosis-associated tumors in chronic hepatitis B virus (HBV) infection, yet little is known about the metabolic link with this factor. We correlated HBV-related pathogenesis in genetically engineered mice and human carriers with metabolic proteomics and lipogenic gene expression profiles. The immunohistochemistry showed that the promyelocytic leukemia protein (PML, a tumor suppressor involved in genome maintenance and fatty acid oxidation), being inversely influenced by the dynamic HBsAg levels from acute phase to seroclearance, appeared as a lipo-metabolic switch linking HBsAg-induced steatosis (lipogenesis) to HBsAg-lost fat-burning hepatocarcinogenesis (lipolysis)...
April 20, 2018: Translational Oncology
https://www.readbyqxmd.com/read/29684468/bile-acid-regulation-a-novel-therapeutic-strategy-in-non-alcoholic-fatty-liver-disease
#14
REVIEW
Qinwei Yu, Zhenzhou Jiang, Luyong Zhang
Non-alcoholic fatty liver disease (NAFLD) is characterized by excessive fat deposition in the liver in the absence of significant alcohol consumption. Dysregulated bile acid (BA) metabolism is an important indicator in the pathology of NAFLD, which could progress into more severe forms of liver injury. Lipid metabolism, immune environment and intestinal bacteria are all affected by dysregulated BA metabolism directly, but the mechanisms remain unclear. Several drug candidates that target BA metabolism, either used alone or in combination with other agents, are currently under development for treatment of NAFLD...
April 20, 2018: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29684438/the-cytoskeleton-in-couch-potato-ism-insights-from-a-murine-model-of-impaired-actin-dynamics
#15
Karen Gertz, Ria Uhlemann, Anna Foryst-Ludwig, Ruben Marquina Barrientos, Kai Kappert, Christa Thöne-Reineke, Pierre Djoufack, Clemens Kirschbaum, Klaus B Fink, Andreas Heinz, Ulrich Kintscher, Matthias Endres, Golo Kronenberg
Evidence for a critical pathophysiological role of aberrant cytoskeletal dynamics is being uncovered in a growing number of neuropsychiatric syndromes. A sedentary lifestyle as well as overt psychopathology is prevalent in patients with the metabolic syndrome. Using mice deficient in gelsolin (Gsn-/- ), a crucial actin-severing protein, we here investigated reduced actin turnover as a potential common driver of metabolic disturbances, sedentary behavior, and an anxious/depressive phenotype. Gelsolin deficiency resulted in reduced lifespan...
April 20, 2018: Experimental Neurology
https://www.readbyqxmd.com/read/29683981/chronic-liver-diseases-and-the-potential-use-of-s-adenosyl-l-methionine-as-a-hepatoprotector
#16
Silvia I Mora, Jonathan García-Román, Iván Gómez-Ñañez, Rebeca García-Román
Chronic liver diseases result in overall deterioration of health status and changes in metabolism. The search for strategies to control and combat these hepatic diseases has witnessed a great boom in the last decades. Nutritional therapy for controlling and managing liver diseases may be a positive influence as it improves the function of the liver. In this review, we focus mainly on describing liver conditions such as nonalcoholic fatty liver disease, and intrahepatic cholestasis as well as using S-adenosyl-L-methionine as a dietary supplement and its potential alternative therapeutic effect to correct the hepatic dysfunction associated with these conditions...
April 20, 2018: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29683979/lifestyle-interventions-for-patients-with-nonalcoholic-fatty-liver-disease-a-network-meta-analysis
#17
Tian-Tian Zou, Chao Zhang, Yi-Fan Zhou, Yi-Jing Han, Jiao-Jiao Xiong, Xi-Xi Wu, Yong-Ping Chen, Ming-Hua Zheng
Lifestyle interventions remain the first-line therapy for nonalcoholic fatty liver disease (NAFLD). This study aims to evaluate the individual impact of exercise and/or dietary interventions on the level of alanine aminotransferase (ALT), aspartate aminotransferase (AST), homeostasis model of assessment for insulin resistance index (HOMA-IR), and BMI. Randomized-controlled trials from patients diagnosed with NAFLD were included in the meta-analysis if they reported the associations between changes in ALT, AST, HOMA-IR, or BMI and types of lifestyle interventions...
April 20, 2018: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29682868/role-and-mechanisms-of-autophagy-in-acetaminophen-induced-liver-injury
#18
Xiaojuan Chao, Hua Wang, Hartmut Jaeschke, Wen-Xing Ding
Acetaminophen (APAP) overdose is the most frequent cause of acute liver failure in the United States and many other countries. Although the metabolism and pathogenesis of APAP has been extensively investigated for decades, the mechanisms by which APAP induces liver injury are incompletely known, which hampers the development of effective therapeutic approaches to tackle this important clinical problem. Autophagy is a highly conserved intracellular degradation pathway, which aims at recycling cellular components and damaged organelles in response to adverse environmental conditions and stresses as a survival mechanism...
April 23, 2018: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/29682494/cognitive-changes-and-brain-volume-reduction-in-patients-with-nonalcoholic-fatty-liver-disease
#19
Branka Filipović, Olivera Marković, Vesna Đurić, Branislav Filipović
Studies of psychological condition of patients suffering from nonalcoholic fatty liver disease are rather equivocal about the results: while some claim that NAFLD patients suffer from anxiety and depression more than non-NAFLD controls, others do not withstand those findings. Lower cognitive potentials have also been reported, both in patient related and in animal model-based investigations, and correlated with assessed brain tissue changes. We hypothesized that NAFLD, as a condition, affects the brain tissue and, subsequently, the cognitive state...
2018: Canadian Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29682369/intrahepatic-cholangiocarcinoma-masquerading-as-acute-fatty-liver-of-pregnancy-a-case-report-and-review-of-the-literature
#20
Ayman Qasrawi, Omar Abughanimeh, Mouhanna Abu Ghanimeh, Simran Arora-Elder, Osama Yousef, Tarek Tamimi
Cholangiocarcinoma (CCA) is an uncommon cancer and accounts only for 3% of all gastrointestinal malignancies. In this report, we present a case of an intrahepatic cholangiocarcinoma masquerading as acute fatty liver of pregnancy (AFLP). A 38-year-old female who is 36-week pregnant presented with a 1-week history of headache, nausea, vomiting, and right upper abdominal pain, along with hepatomegaly. Laboratory investigations were remarkable for mild leukocytosis, hyperbilirubinemia, proteinuria, and elevated transaminases and prothrombin time...
2018: Case Reports in Hepatology
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