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https://www.readbyqxmd.com/read/28088781/mir-30c-5p-ameliorates-hepatic-steatosis-in-leptin-receptor-deficient-db-db-mice-via-down-regulating-fasn
#1
Jiahui Fan, Huaping Li, Xiang Nie, Zhongwei Yin, Yanru Zhao, Chen Chen, Dao Wen Wang
Approximately 15-40% of the general adult population suffers from non-alcoholic fatty liver disease (NAFLD) worldwide. However, no drug is currently licensed for its treatment. In this study, we observed a significant reduction of miR-30c-5p in the liver of leptin receptor-deficient (db/db) mice. Remarkably, recombinant adeno-associated virus (rAAV)-mediated delivery of miR-30c-5p was sufficient to attenuate triglyceride accumulation and hepatic steatosis in db/db mice. Through computational prediction, KEGG analysis and Ago2 co-immunoprecipitation, we identified that miR-30c-5p directly targeted fatty acid synthase, a key enzyme in fatty acid biosynthesis...
January 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28088462/activation-of-the-hypoxia-inducible-factor-1-alpha-subunit-pathway-in-steatotic-liver-contributes-to-formation-of-cholesterol-gallstones
#2
Yoichiro Asai, Tetsuya Yamada, Sohei Tsukita, Kei Takahashi, Masamitsu Maekawa, Midori Honma, Masanori Ikeda, Keigo Murakami, Yuichiro Munakata, Yuta Shirai, Shinjiro Kodama, Takashi Sugisawa, Yumiko Chiba, Yasuteru Kondo, Keizo Kaneko, Kenji Uno, Shojiro Sawada, Junta Imai, Yasuhiro Nakamura, Hiroaki Yamaguchi, Kozo Tanaka, Hironobu Sasano, Nariyasu Mano, Yoshiyuki Ueno, Tooru Shimosegawa, Hideki Katagiri
BACKGROUND AND AIMS: Hypoxia inducible factor 1 alpha subunit (HIF1A) is a transcription factor that controls the cellular response to hypoxia and is activated in hepatocytes of patients with non-alcoholic fatty liver disease (NAFLD). NAFLD increases risk for cholesterol gallstone disease by unclear mechanisms. We studied the relationship between HIF1A and gallstone formation associated with liver steatosis. METHODS: We performed studies with mice with inducible disruption of Hif1a in hepatocytes, via a Cre adenoviral vector (iH-HIFKO mice), and mice without disruption of Hif1a (control mice)...
January 11, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28088290/could-post-weaning-dietary-chia-seed-mitigate-the-development-of-dyslipidemia-liver-steatosis-and-altered-glucose-homeostasis-in-offspring-exposed-to-a-sucrose-rich-diet-from-utero-to-adulthood
#3
M A Fortino, M E Oliva, S Rodriguez, Y B Lombardo, A Chicco
The present work analyzes the effects of dietary chia seeds during postnatal life in offspring exposed to a sucrose-rich diet (SRD) from utero to adulthood. At weaning, chia seed (rich in α-linolenic acid) replaced corn oil (rich in linoleic acid) in the SRD. At 150 days of offspring life, anthropometrical parameters, blood pressure, plasma metabolites, hepatic lipid metabolism and glucose homeostasis were analyzed. Results showed that chia was able to prevent the development of hypertension, liver steatosis, hypertriglyceridemia and hypercholesterolemia...
January 2017: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/28088289/effects-of-treatment-with-sucrose-in-drinking-water-on-liver-histology-lipogenesis-and-lipogenic-gene-expression-in-rats-fed-high-fiber-diet
#4
Tomislav Mašek, Natalija Filipović, Ana Vuica, Kristina Starčević
We studied the influence of sucrose in drinking water on liver histology, fatty acid profile and lipogenic genes expression in rats maintained on high-fiber. The experimental groups were: control group (water) and sucrose group (sucrose solution in drinking water, 30% w/v). Liver histology of sucrose treated rats revealed steatosis and increased number of αSMA immunoreactive cells without the signs of fibrosis. Sucrose treatment increased de novo lipogenesis, lipid peroxidation and MUFA content and decreased PUFA content, C18:2n6 and C20:4n6 content in total phospholipids and phosphatidylethanolamine and C18:2n6 content in cardiolipin...
January 2017: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/28086886/biochemical-mechanism-underlying-hypertriglyceridemia-and-hepatic-steatosis-hepatomegaly-induced-by-acute-schisandrin-b-treatment-in-mice
#5
Yi Zhang, Jing Zhao, Shu-Feng Zhou, Zhi-Ling Yu, Xiao-Yan Wang, Pei-Li Zhu, Zhu-Sheng Chu, Si-Yuan Pan, Ming Xie, Kam-Ming Ko
BACKGROUND: It has been demonstrated that acute oral administration of schisandrin B (Sch B), an active dibenzocyclooctadiene isolated from Schisandrae Fructus (a commonly used traditional Chinese herb), increased serum and hepatic triglyceride (TG) levels and hepatic mass in mice. The present study aimed to investigate the biochemical mechanism underlying the Sch B-induced hypertriglyceridemia, hepatic steatosis and hepatomegaly. METHODS: Male ICR mice were given a single oral dose of Sch B (0...
January 13, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28086800/relevance-of-fxr-p62-sqstm1-pathway-for-survival-and-protection-of-mouse-hepatocytes-and-liver-especially-with-steatosis
#6
Sanae Haga, Yimin, Michitaka Ozaki
BACKGROUND: Liver injury and regeneration involve complicated processes and are affected by various physio-pathological conditions. Surgically, severe liver injury after surgical resection often leads to fatal liver failure, especially with some underlying pathological conditions such as steatosis. Therefore, protection from the injury of hepatocytes and liver is a serious concern in various clinical settings. METHODS: We studied the effects of the farnesoid X receptor (FXR) on cell survival and steatosis in mouse hepatocytes (AML12 mouse liver cells) and investigated their molecular mechanisms...
January 13, 2017: BMC Gastroenterology
https://www.readbyqxmd.com/read/28086768/probiotic-mixture-improves-fatty-liver-disease-by-virtue-of-its-action-on-lipid-profiles-leptin-and-inflammatory-biomarkers
#7
Hessah Mohammed Al-Muzafar, Kamal Adel Amin
BACKGROUND: A high fat diet has an essential role in the pathogenesis of non-alcoholic fatty liver disease (NAFLD). This condition is characterized by hepatic fat accumulation (steatosis) and is associated with obesity, diabetes, and fibrosis or cirrhosis of the liver. Probiotics may be useful in the treatment of steatosis. This study examined the effects of an ingested probiotic formulation on the lipid profiles, liver functions, leptin levels, and inflammatory marker levels of rats with NAFLD that had been induced via high fat and sucrose diet (HFSD)...
January 13, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28081181/aronia-melanocarpa-extract-ameliorates-hepatic-lipid-metabolism-through-ppar%C3%AE-2-downregulation
#8
Chung-Hwa Park, Jung-Hee Kim, Eun Byul Lee, Wonhee Hur, Oh-Joo Kwon, Hyoung-Jin Park, Seung Kew Yoon
Nonalcoholic fatty liver disease (NAFLD) is a hepatic manifestation of metabolic syndrome. Studies have demonstrated that anthocyanin-rich foods may improve hyperlipidemia and ameliorate hepatic steatosis. Here, effects of Aronia melanocarpa (AM), known to be rich of anthocyanins, on hepatic lipid metabolism and adipogenic genes were determined. AM was treated to C57BL/6N mice fed with high fat diet (HFD) or to FL83B cells treated with free fatty acid (FFA). Changes in levels of lipids, enzymes and hormones were observed, and expressions of adipogenic genes involved in hepatic lipid metabolism were detected by PCR, Western blotting and luciferase assay...
2017: PloS One
https://www.readbyqxmd.com/read/28079599/steatohepatitis-like-changes-in-focal-nodular-hyperplasia-a-finding-to-distinguish-from-steatohepatitic-variant-of-hepatocellular-carcinoma
#9
Kemal Deniz, Roger K Moreira, Matthew M Yeh, Linda D Ferrell
Steatohepatitis-like change has not been described in focal nodular hyperplasia (FNH). Steatohepatitis-like change in FNH may show overlapping features with steatohepatitic variant of hepatocellular carcinoma (HCC). This problem can be compounded if seen in FNH with widened cell plates or hepatocyte rosettes, other features that can also be seen in HCC. This study examined steatotic FNHs for the frequency of steatohepatitis-like change, especially in the setting of FNH with rosettes and/or widened cell plates...
February 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28077733/identification-of-potential-plasma-biomarkers-for-nonalcoholic-fatty-liver-disease-by-integrating-transcriptomics-and-proteomics-in-laying-hens
#10
Meng-Tsz Tsai, Yu-Jen Chen, Ching-Yi Chen, Mong-Hsun Tsai, Chia-Li Han, Yu-Ju Chen, Harry J Mersmann, Shih-Torng Ding
BACKGROUND: Prevalent worldwide obesity is associated with increased incidence of nonalcoholic fatty liver disease (NAFLD) and metabolic syndrome. The identification of noninvasive biomarkers for NAFLD is of recent interest. Because primary de novo lipogenesis occurs in chicken liver as in human liver, adult chickens with age-associated steatosis resembling human NAFLD is an appealing animal model. OBJECTIVE: The objective of this study was to screen potential biomarkers in the chicken model for NAFLD by transcriptomic and proteomic analysis...
January 11, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28077318/alcohol-microbiome-life-style-influence-alcohol-and-non-alcoholic-organ-damage
#11
REVIEW
Manuela G Neuman, Samuel W French, Samir Zakhari, Stefen Malnick, Helmut K Seitz, Lawrence B Cohen, Mikko Salaspuro, Andreea Voinea Griffin, Andrei Barasch, Irina A Kirpich, Paul G Thomes, Laura W Schrum, Terrence M Donohue, Kusum Kharbanda, Marcus Cruz, Mihai Opris
This paper is based upon the "8th Charles Lieber's Satellite Symposium" organized by Manuela G. Neuman at the Research Society on Alcoholism Annual Meeting, onJune 25, 2016 at New Orleans, Louisiana, USA. The integrative symposium investigated different aspects of alcohol-induced liver disease (ALD) as well as non-alcohol-induced liver disease (NAFLD) and possible repair. We revealedthe basic aspects of alcohol metabolism that may be responsible for the development of liver diseaseas well as the factors that determine the amount, frequency and which type of alcohol misuse leads to liver and gastrointestinal diseases...
January 7, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/28076416/the-ccr2-inhibitor-propagermanium-attenuates-diet-induced-insulin-resistance-adipose-tissue-inflammation-and-non-alcoholic-steatohepatitis
#12
Petra Mulder, Anita M van den Hoek, Robert Kleemann
BACKGROUND AND AIM: Obese patients with chronic inflammation in white adipose tissue (WAT) have an increased risk of developing non-alcoholic steatohepatitis (NASH). The C-C chemokine receptor-2 (CCR2) has a crucial role in the recruitment of immune cells to WAT and liver, thereby promoting the inflammatory component of the disease. Herein, we examined whether intervention with propagermanium, an inhibitor of CCR2, would attenuate tissue inflammation and NASH development. METHODS: Male C57BL/6J mice received a high-fat diet (HFD) for 0, 6, 12 and 24 weeks to characterize the development of early disease symptoms of NASH, i...
2017: PloS One
https://www.readbyqxmd.com/read/28075092/diabetes-mellitus-management-of-gastrointestinal-complications
#13
Beth Careyva, Brian Stello
Gastrointestinal disorders are common complications of diabetes mellitus and include gastroparesis, nonalcoholic fatty liver disease, gastroesophageal reflux disease, and chronic diarrhea. Symptoms of gastroparesis include early satiety, postprandial fullness, nausea, vomiting of undigested food, bloating, and abdominal pain. Gastroparesis is diagnosed based on clinical symptoms and a delay in gastric emptying in the absence of mechanical obstruction. Gastric emptying scintigraphy is the preferred diagnostic test...
December 15, 2016: American Family Physician
https://www.readbyqxmd.com/read/28073414/-protective-effect-of-saccharomyces-boulardii-against-intestinal-mucosal-barrier-injury-in-rats-with-nonalcoholic-fatty-liver-disease
#14
Y T Liu, Y Q Li, Y Z Wang
Objective: To investigate the protective effect of Saccharomyces boulardii against intestinal mucosal barrier injury in rats with nonalcoholic fatty liver disease (NAFLD). Methods: A total of 36 healthy male Sprague-Dawley rats with a mean body weight of 180±20 g were randomly divided into control group, model group, and treatment group, with 12 rats in each group, after adaptive feeding for 1 week. The rats in the control group were given basic feed, and those in the model group and treatment group were given high-fat feed...
December 20, 2016: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/28073183/a-liver-specific-long-non-coding-rna-with-a-role-in-cell-viability-is-elevated-in-human-non-alcoholic-steatohepatitis
#15
Biljana Atanasovska, Sander S Rensen, Marijke R van der Sijde, Glenn Marsman, Vinod Kumar, Iris Jonkers, Sebo Withoff, Ronit Shiri-Sverdlov, Jan Willem M Greve, Klaas Nico Faber, Han Moshage, Cisca Wijmenga, Bart van de Sluis, Marten H Hofker, Jingyuan Fu
: Hepatocyte apoptosis in non-alcoholic steatohepatitis (NASH) can lead to fibrosis and cirrhosis, which permanently damage the liver. Understanding the regulation of hepatocyte apoptosis is therefore important to identify therapeutic targets that may prevent the progression of NASH to fibrosis. Recently, increasing evidence has shown that lncRNAs are involved in various biological processes and that their dysregulation underlies a number of complex human diseases. By performing gene expression profiling of 4,383 lncRNAs in 82 liver samples from individuals with NASH (n=48), simple steatosis but no NASH (n=11) and healthy controls (n=23), we discovered a liver-specific lncRNA (RP11-484N16...
January 10, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28073175/post-reperfusion-microcirculatory-derangements-after-liver-transplantation-relationship-to-hemodynamics-serum-mediators-and-outcome
#16
Carlo Pulitano, David Joseph, Charbel Sandroussi, Deborah Verran, Phong Ho, Ashe Debiasio, Adriano Luongo, Geoffrey W McCaughan, Nicholas Shackel, Michael Crawford
INTRODUCTION: Despite the growing data supporting the role of microcirculation in regulating liver function, little of this knowledge has been translated into clinical practice. The aim of this study is to quantify hepatic microcirculation in-vivo using sidestream dark-field (SDF) imaging and correlate these finding with hepatic blood flow, hemodynamic parameters, and soluble mediators. METHODS: Post-reperfusion hepatic microcirculation was assessed using SDF imaging...
January 10, 2017: Liver Transplantation
https://www.readbyqxmd.com/read/28073164/protective-role-of-endogenous-plasmalogens-against-hepatic-steatosis-and-steatohepatitis
#17
Jung Eun Jang, Han-Sol Park, Hyun Ju Yoo, In-Jeoung Baek, Ji Eun Yoon, Myoung Seok Ko, Ah-Ram Kim, Hyoun Sik Kim, Hye-Sun Park, Seung Eun Lee, Seung-Whan Kim, Su Jung Kim, Jaechan Leem, Yu Mi Kang, Min Kyo Jung, Chan-Gi Pack, Chong Jai Kim, Chang Ohk Sung, In-Kyu Lee, Joong-Yeol Park, José C Fernández-Checa, Eun Hee Koh, Ki-Up Lee
: Free cholesterol (FC) accumulation in the liver is an important pathogenic mechanism of nonalcoholic steatohepatitis (NASH). Plasmalogens, key structural components of the cell membrane, act as endogenous antioxidants and are primarily synthesized in the liver. However, the role of hepatic plasmalogens in metabolic liver disease is unclear. In this study, we found that hepatic levels of docosahexaenoic acid (DHA)-containing plasmalogens, expression of glyceronephosphate O-acyltransferase (Gnpat, the rate-limiting enzyme in plasmalogen biosynthesis), and expression of Pparα were lower in mice with NASH caused by accumulation of free cholesterol (FC) in the liver...
January 10, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28073161/the-pnpla3-i148m-variant-modulates-the-fibrogenic-phenotype-of-human-hepatic-stellate-cells
#18
Francesca Virginia Bruschi, Thierry Claudel, Matteo Tardelli, Alessandra Caligiuri, Thomas M Stulnig, Fabio Marra, Michael Trauner
: The genetic polymorphism I148M of PNPLA3 is robustly associated with hepatic steatosis and its progression to steatohepatitis, fibrosis and cancer. Hepatic stellate cells (HSCs) are key players in the development of liver fibrosis, but the role of PNPLA3 and its variant I148M in this process is poorly understood. Here we analyzed the expression of PNPLA3 during human HSC activation and thereby explored how a PNPLA3 variant impacts on hepatic fibrogenesis. We show that PNPLA3 gene and protein expression increase during the early phases of activation and remain elevated in fully activated HSCs (p<0...
January 10, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28069546/g004-a-synthetic-sulfonylurea-compound-exerts-anti-atherosclerosis-effects-by-targeting-sirt1-in-apoe-mice
#19
Lifen Qian, Lingman Ma, Guanzhong Wu, Qian Yu, Huisheng Lin, Qidi Ying, Dan Wen, Cong Gao
Atherosclerosis attracts increasing global attention because of its morbidity and mortality. G004, as a synthetic sulfonylurea compound, has been confirmed to have anti-hyperglycaemia, anti-platelet and anti-thrombus effects. The aim of the present study was to investigate whether G004 suppress the onset and development of atherosclerosis and illuminate its probable mechanism of action. ApoE(-/-) mice that were fed a high-fat diet were randomly divided into five groups by weight; subsequently, they were treated with vehicle, G004, at different doses or atorvastatin once daily for 12weeks...
January 6, 2017: Vascular Pharmacology
https://www.readbyqxmd.com/read/28068223/hepatocyte-taz-wwtr1-promotes-inflammation-and-fibrosis-in-nonalcoholic-steatohepatitis
#20
Xiaobo Wang, Ze Zheng, Jorge Matias Caviglia, Kathleen E Corey, Tina M Herfel, Bishuang Cai, Ricard Masia, Raymond T Chung, Jay H Lefkowitch, Robert F Schwabe, Ira Tabas
Nonalcoholic steatohepatitis (NASH) is a leading cause of liver disease worldwide. However, the molecular basis of how benign steatosis progresses to NASH is incompletely understood, which has limited the identification of therapeutic targets. Here we show that the transcription regulator TAZ (WWTR1) is markedly higher in hepatocytes in human and murine NASH liver than in normal or steatotic liver. Most importantly, silencing of hepatocyte TAZ in murine models of NASH prevented or reversed hepatic inflammation, hepatocyte death, and fibrosis, but not steatosis...
December 13, 2016: Cell Metabolism
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