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Non-alcoholic steatosis

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https://www.readbyqxmd.com/read/27920819/co-administration-of-metformin-and-n-acetylcysteine-with-dietary-control-improves-the-biochemical-and-histological-manifestations-in-rats-with-non-alcoholic-fatty-liver
#1
Naglaa Mohamed El-Lakkany, Sayed Hassan Seif El-Din, Abdel-Nasser Abdel-Aal Sabra, Olfat Ali Hammam, Fatma Abdel-Latif Ebeid
Non-alcoholic fatty liver disease (NAFLD) is a burgeoning health problem that affects 1/3 of the adult population and an increasing number of children in developed countries. Oxidative stress and insulin resistance are the mechanisms that seem to be mostly involved in its pathogenesis. This study was conceived in a NAFLD rat model to evaluate the efficacy of both metformin (MTF) and N-acetylcysteine (NAC) with dietary control on biochemical and histologic liver manifestations. Rats were classified into nine groups; normal (I), NAFLD-induced by feeding high-fat diet (HFD; II) for 12 weeks, NAFLD switched to regular diet (RD; III), NAFLD-HFD or -RD treated with MTF in a dose of 150 mg/kg (IV, V), NAC in a dose of 500 mg/kg (VI, VII) or MTF+NAC (VIII, IX) respectively for 8 weeks...
October 2016: Research in Pharmaceutical Sciences
https://www.readbyqxmd.com/read/27914698/under-prescription-of-statins-in-patients-with-non-alcoholic-fatty-liver-disease
#2
M Del Ben, F Baratta, L Polimeni, D Pastori, L Loffredo, M Averna, F Violi, F Angelico
BACKGROUND AND AIM: Non-alcoholic fatty liver disease (NAFLD) is a common disease associated with high cardiovascular risk. Management of dyslipidaemia plays a pivotal role in the prevention of CV events and statins have proved to be safe in these patients. However, in everyday clinical practice statin prescription is sometimes limited because of the concern of physicians about side-effects. The aim of the study was to investigate if the presence of NAFLD affects the prescription of lipid-lowering treatment in a large series of patients with cardio-metabolic disorders...
September 28, 2016: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
https://www.readbyqxmd.com/read/27908430/evaluation-of-tissue-metal-and-trace-element-content-in-a-rat-model-of-non-alcoholic-fatty-liver-disease-using-icp-drc-ms
#3
Eugenia R Gatiatulina, Elizaveta V Popova, Valentina S Polyakova, Anastasia A Skalnaya, Eduard F Agletdinov, Alexandr A Nikonorov, Anatoly V Skalny, Alexey A Tinkov
The primary objective of the study was to assess the level of metals and trace elements in liver, serum, and hair of rats with diet-induced non-alcoholic fatty liver disease (NAFLD) using inductively coupled plasma dynamic reaction cell mass spectrometer (ICP-DRC-MS). 56 female 3-months-old Wistar rats divided into two equal groups were fed either standard (10% calories from fat) or high-fat high-carbohydrate diet (60% calories from fat in chow and 10% sucrose solution) for 6 weeks. Serum was examined for insulin resistance markers, lipid profile, and alanine aminotransferase (ALT) activity...
January 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/27908400/low-hepatic-copper-content-and-pnpla3-polymorphism-in-non-alcoholic-fatty-liver-disease-in-patients-without-metabolic-syndrome
#4
Albert Friedrich Stättermayer, Stefan Traussnigg, Elmar Aigner, Christian Kienbacher, Ursula Huber-Schönauer, Petra Steindl-Munda, Andreas Stadlmayr, Friedrich Wrba, Michael Trauner, Christian Datz, Peter Ferenci
INTRODUCTION: The pathogenesis of non-alcoholic fatty liver disease (NAFLD) is multifactorial including metabolic, genetic (e.g. PNPLA3 [patatin-like phospholipase domain-containing 3 gene]), viral factors and drugs. Besides, there is evidence for a role of copper deficiency. Aim of the study was to evaluate the role of hepatic copper content, PNPLA3 in NAFLD patients with and without metabolic syndrome (MetS). METHODS: One-hundred seventy-four NAFLD patients, who underwent liver biopsy for diagnostic work-up, were studied...
January 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/27905898/physical-activity-and-sedentary-behavior-can-modulate-the-effect-of-the-pnpla3-variant-on-childhood-nafld-a-case-control-study-in-a-chinese-population
#5
Shuo Wang, Jieyun Song, Xiaorui Shang, Nitesh Chawla, Yide Yang, Xiangrui Meng, Haijun Wang, Jun Ma
BACKGROUND: The patatin like phospholipase containing domain 3 gene (PNPLA3) rs738409 C > G polymorphism, one of the most important gene polymorphisms involved in hepatic steatosis, has been reported to interact with different nutrients and dietary patterns on Non-Alcoholic Fatty Liver Disease (NAFLD), but no studies have focused on its interaction with physical activity or sedentary behavior. Therefore, this study aims at determining whether physical activity or sedentary behavior could modulate the effect of the PNPLA3 variant on childhood NAFLD...
December 1, 2016: BMC Medical Genetics
https://www.readbyqxmd.com/read/27903585/autophagy-in-chronic-liver-diseases-the-two-faces-of-janus
#6
Philippe Gual, Helene Gilgenkrantz, Sophie Lotersztajn
Alcoholic liver disease (ALD) and non-alcoholic fatty liver disease (NAFLD) are the leading causes of cirrhosis and increase the risk of hepatocellular carcinoma and liver-related death. ALD and NAFLD share common pathogenic features extending from isolated steatosis to steatohepatitis, steatofibrosis, which can progress to cirrhosis and hepatocellular carcinoma. The pathophysiological mechanisms of the progression of NAFLD and ALD are complex and still unclear. Important links between the regulation of autophagy (Macroautophagy and Chaperome-mediated autophagy) and chronic liver diseases have been reported...
November 30, 2016: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/27898698/myeloid-dll4-does-not-contribute-to-the-pathogenesis-of-non-alcoholic-steatohepatitis-in-ldlr-mice
#7
Mike L J Jeurissen, Sofie M A Walenbergh, Tom Houben, Tim Hendrikx, Jieyi Li, Yvonne Oligschlaeger, Patrick J van Gorp, Marion J J Gijbels, Albert Bitorina, Isabell Nessel, Freddy Radtke, Marc Vooijs, Jan Theys, Ronit Shiri-Sverdlov
Non-alcoholic steatohepatitis (NASH) is characterized by liver steatosis and inflammation. Currently, the underlying mechanisms leading to hepatic inflammation are not fully understood and consequently, therapeutic options are poor. Non-alcoholic steatohepatitis (NASH) and atherosclerosis share the same etiology whereby macrophages play a key role in disease progression. Macrophage function can be modulated via activation of receptor-ligand binding of Notch signaling. Relevantly, global inhibition of Notch ligand Delta-Like Ligand-4 (DLL4) attenuates atherosclerosis by altering the macrophage-mediated inflammatory response...
2016: PloS One
https://www.readbyqxmd.com/read/27895822/linagliptin-alleviates-fatty-liver-disease-in-diabetic-db-db-mice
#8
Svetlana V Michurina, Irina Ju Ishenko, Vadim V Klimontov, Sergey A Archipov, Natalia E Myakina, Marina A Cherepanova, Eugenii L Zavjalov, Galina V Koncevaya, Vladimir I Konenkov
AIM: To study the effects of linagliptin on the structural signs of non-alcoholic fatty liver disease (NAFLD) in db/db mice. METHODS: Male diabetic db/db mice (BKS.Cg-Dock7(m+)/(+)Lepr(db)/J) aged 10 wk received the dipeptidyl peptidase 4 (DPP4) inhibitor linagliptin (10 mg/kg) or saline as a placebo once per day by gavage for 8 wk. Intact db/db mice served as controls. Structural changes in the liver were analyzed from light and electron microscopic images of sections from intact, placebo-treated and linagliptin-treated animals...
November 15, 2016: World Journal of Diabetes
https://www.readbyqxmd.com/read/27895587/vitamin-d-signaling-through-induction-of-paneth-cell-defensins-maintains-gut-microbiota-and-improves-metabolic-disorders-and-hepatic-steatosis-in-animal-models
#9
Danmei Su, Yuanyang Nie, Airu Zhu, Zishuo Chen, Pengfei Wu, Li Zhang, Mei Luo, Qun Sun, Linbi Cai, Yuchen Lai, Zhixiong Xiao, Zhongping Duan, Sujun Zheng, Guihui Wu, Richard Hu, Hidekazu Tsukamoto, Aurelia Lugea, Zhenqui Liu, Stephen J Pandol, Yuan-Ping Han
Metabolic syndrome (MetS), characterized as obesity, insulin resistance, and non-alcoholic fatty liver diseases (NAFLD), is associated with vitamin D insufficiency/deficiency in epidemiological studies, while the underlying mechanism is poorly addressed. On the other hand, disorder of gut microbiota, namely dysbiosis, is known to cause MetS and NAFLD. It is also known that systemic inflammation blocks insulin signaling pathways, leading to insulin resistance and glucose intolerance, which are the driving force for hepatic steatosis...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27895397/th17-involvement-in-nonalcoholic-fatty-liver-disease-progression-to-non-alcoholic-steatohepatitis
#10
REVIEW
Carla Melisa Chackelevicius, Sabrina Eliana Gambaro, Claudio Tiribelli, Natalia Rosso
The nonalcoholic fatty liver disease (NAFLD) is the hepatic manifestation of the metabolic syndrome. NAFLD encompasses a wide histological spectrum ranging from benign simple steatosis to non-alcoholic steatohepatitis (NASH). Sustained inflammation in the liver is critical in this process. Hepatic macrophages, including liver resident macropaghes (Kupffer cells), monocytes infiltrating the injured liver, as well as specific lymphocytes subsets play a pivotal role in the initiation and perpetuation of the inflammatory response, with a major deleterious impact on the progression of fatty liver to fibrosis...
November 7, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27895393/emerging-role-of-obeticholic-acid-in-the-management-of-nonalcoholic-fatty-liver-disease
#11
EDITORIAL
Evangelia Makri, Evangelos Cholongitas, Konstantinos Tziomalos
Nonalcoholic fatty liver disease (NAFLD) is the commonest chronic liver disease and its prevalence is increasing driven by the pandemic of obesity and type 2 diabetes mellitus. NAFLD can progress to cirrhosis and is associated with increased risk for cardiovascular disease and hepatocellular cancer. Diet and exercise are limited by suboptimal long-term adherence in patients with NAFLD. On the other hand, current pharmacological treatment of NAFLD has limited efficacy and unfavorable safety profile. In this context, obeticholic acid (OCA), a selective agonist of the farnesoid X receptors, might represent a useful option in these patients...
November 7, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27893763/the-role-of-morbid-obesity-in-the-promotion-of-metabolic-disruptions-and-non-alcoholic-steatohepatitis-by-helicobacter-pylori
#12
Albert Lecube, Silvia Valladares, Carolina López-Cano, Liliana Gutiérrez, Andreea Ciudin, José Manuel Fort, Josep Maria Reñé, Xavier Matias-Guiu, Inés de Torres, Marta Bueno, Judit Pallarés, Juan Antonio Baena
BACKGROUND: Helicobacter pylory (HP) infection has been associated to an increased rate of type 2 diabetes (T2D) and liver disease through its effect on insulin resistance and systemic inflammation. However, results are inconstant and no studies exist in morbidly obese patients, in which both insulin resistance and inflammation coexist. MATERIAL AND METHODS: Cross-sectional study to evaluate the relationship between HP infection and alterations in carbohydrate metabolism, lipid profile, inflammation markers, and liver disease in patients awaiting for bariatric surgery...
2016: PloS One
https://www.readbyqxmd.com/read/27890642/protective-effect-of-quercetin-on-high-fat-diet-induced-non-alcoholic-fatty-liver-disease-in-mice-is-mediated-by-modulating-intestinal-microbiota-imbalance-and-related-gut-liver-axis-activation
#13
David Porras, Esther Nistal, Susana Martínez-Flórez, Sandra Pisonero-Vaquero, José Luis Olcoz, Ramiro Jover, Javier González-Gallego, María Victoria García-Mediavilla, Sonia Sánchez-Campos
Gut microbiota is involved in obesity, metabolic syndrome and the progression of nonalcoholic fatty liver disease (NAFLD). It has been recently suggested that the flavonoid quercetin may have the ability to modulate the intestinal microbiota composition, suggesting a prebiotic capacity which highlights a great therapeutic potential in NAFLD. The present study aims to investigate benefits of experimental treatment with quercetin on gut microbial balance and related gut-liver axis activation in a nutritional animal model of NAFLD associated to obesity...
November 25, 2016: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/27889747/alisol-a-24-acetate-prevents-hepatic-steatosis-and-metabolic-disorders-in-hepg2-cells
#14
Lu Zeng, WaiJiao Tang, JinJin Yin, LiJuan Feng, Yabing Li, Xiaorui Yao, BenJie Zhou
BACKGROUND: Non-alcoholic fatty liver disease (NAFLD) is closely associated with metabolic disorders including hepatic lipid accumulation and inflammation. Alisol A 24-acetate, a triterpene from Alismatis rhizome, has multiple biologic activities such as hypolipidemic, anti-inflammatory and anti-diabetic. Thus we hypothesized that Alisol A 24 -acetate would have effect on NAFLD. The present study was conducted to investigate the therapeutic effects and potential mechanisms of Alisol A 24-acetate against hepatic steatosis in a free fatty acids (FFAs) induced NAFLD cell model...
November 25, 2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27889327/epigenetics-in-non-alcoholic-fatty-liver-disease
#15
REVIEW
Jooho Lee, Yuri Kim, Simonetta Friso, Sang-Woon Choi
Non-alcoholic fatty liver disease (NAFLD), a common hepatic disorder ranging from simple steatosis through steatohepatitis to fibrosis and cirrhosis, is an emerging health concern. NAFLD is a pathologic condition characterized by the buildup of extra fat in liver cells that is not caused by alcohol consumption. Excess hepatic fat accumulation results from increased delivery of triglycerides (TG) to the liver or conversion of surplus carbohydrates to TG. Importantly, a subgroup of NAFLD results in hepatocellular injury and inflammation, which is referred to as non-alcoholic steatohepatitis (NASH), and may progress to irreversible cirrhosis and hepatocellular carcinoma (HCC)...
November 23, 2016: Molecular Aspects of Medicine
https://www.readbyqxmd.com/read/27888103/luteolin-improves-non-alcoholic-fatty-liver-disease-in-db-db-mice-by-inhibition-of-liver-x-receptor-activation-to-down-regulate-expression-of-sterol-regulatory-element-binding-protein-1c
#16
Ye Yin, Lu Gao, Haiyan Lin, Yue Wu, Xiao Han, Yunxia Zhu, Jie Li
In this study, we report that daily administration of luteolin for 8 weeks improved hepatic steatosis by repressing hepatic TG accumulation and increasing glycogen storage. Luteolin inhibited hepatic de novo lipid synthesis by regulating the LXR-SREBP-1c signaling pathway, which is over-activated in the livers of db/db mice. Further in vitro studies revealed that luteolin can competitively bind to the ligand binding domain to suppress the LXR activation induced by an LXR agonist and high glucose, thereby decreasing TG accumulation in HepG2 cells and primary hepatocytes...
November 22, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27884920/systematic-review-of-bariatric-surgery-liver-biopsies-clarifies-the-natural-history-of-liver-disease-in-patients-with-severe-obesity
#17
Pierre Bedossa, Joan Tordjman, Judith Aron-Wisnewsky, Christine Poitou, Jean-Michel Oppert, Adriana Torcivia, Jean-Luc Bouillot, Valerie Paradis, Vlad Ratziu, Karine Clément
OBJECTIVE: Non-alcoholic fatty liver disease (NAFLD) is a frequent complication of morbid obesity, but its severity varies greatly and thus there is a strong need to better define its natural history in these patients. DESIGN: Liver biopsies were systematically performed in 798 consecutive patients with severe obesity undergoing bariatric surgery. Histology was compared with clinical, biological, anthropometrical and body composition characteristics. RESULTS: Patients with presumably normal liver (n=179, 22%) were significantly younger at bariatric surgery than patients with NAFLD (37...
November 24, 2016: Gut
https://www.readbyqxmd.com/read/27880981/a-novel-glucagon-like-peptide-1-glucagon-receptor-dual-agonist-improves-steatohepatitis-and-liver-regeneration-in-mice
#18
M Pilar Valdecantos, Virginia Pardo, Laura Ruiz, Luis Castro-Sánchez, Borja Lanzón, Elisa Fernández-Millán, Carmelo García-Monzón, Ana I Arroba, Águeda González-Rodríguez, Fernando Escrivá, Álvarez Carmen, Francisco J Rupérez, Coral Barbas, Anish Konkar, Jacqui Naylor, David Hornigold, Ana Dos Santos, Maria Bednarek, Joseph Grimsby, Cristina M Rondinone, Ángela M Valverde
BACKGROUND AND AIMS: Since non-alcoholic steatohepatitis (NASH) is associated with impaired liver regeneration, we investigated the effects of G49, a dual glucagon-like peptide-1(GLP-1)/glucagon (GCG) receptor agonist, on NASH and hepatic regeneration. METHODS: C57Bl/6 mice fed chow or methionine and choline-deficient (MCD) diet for one week were divided into 4 groups: C (chow diet), MCD (MCD diet), C+G49 (chow diet plus G49) and M+G49 (MCD diet plus G49). Mice fed high fat diet (HFD) for 10 weeks were divided in groups: HFD and H+G49 (HFD plus G49)...
November 23, 2016: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/27876064/melatonin-improves-non-alcoholic-fatty-liver-disease-via-mapk-jnk-p38-signaling-in-high-fat-diet-induced-obese-mice
#19
Hang Sun, Xingchun Wang, Jiaqi Chen, Kexiu Song, Aaron M Gusdon, Liang Li, Le Bu, Shen Qu
BACKGROUND: Melatonin can regulate lipid metabolism, increase insulin sensitivity, regulate glucose metabolism and reduce body weight. This study is aimed to determine the effects and mechanism of action of melatonin on non-alcoholic fatty liver disease (NAFLD) in high-fat-diet (HFD) induced obese mice. METHODS: NAFLD was induced by HFD in C57BL/6 mice. A total of 24 mice were randomly assigned to 4 groups. Groups A and B were fed with HFD for 36 weeks while groups C and D were fed with a regular diet (RD)...
November 23, 2016: Lipids in Health and Disease
https://www.readbyqxmd.com/read/27869416/non-alcoholic-fatty-liver-disease-a-new-epidemic-in-children
#20
Mirta Ciocca, Margarita Ramonet, Fernando Álvarez
Non-alcoholic fatty liver disease is considered one of the most common causes of liver disease in adults and children, consistent with the increased prevalence of obesity in both populations worldwide. It is a multifactorial condition involving a broad spectrum of liver diseases than range from simple steatosis to steatohepatitis, and characterized by histological findings of inflammation and fibrosis. Its pathogenesis and progression are not fully understood yet, and a more complete understanding of liver disease may aid in developing new therapies and noninvasive diagnostic tools...
December 1, 2016: Archivos Argentinos de Pediatría
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