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NAFLD diet

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https://www.readbyqxmd.com/read/28335388/a-combination-of-flaxseed-oil-and-astaxanthin-improves-hepatic-lipid-accumulation-and-reduces-oxidative-stress-in-high-fat-diet-fed-rats
#1
Jiqu Xu, Shuang Rong, Hui Gao, Chang Chen, Wei Yang, Qianchun Deng, Qingde Huang, Lingyun Xiao, Fenghong Huang
Hepatic lipid accumulation and oxidative stress are crucial pathophysiological mechanisms for non-alcoholic fatty liver disease (NAFLD). Thus, we examined the effect of a combination of flaxseed oil (FO) and astaxanthin (ASX) on hepatic lipid accumulation and oxidative stress in rats fed a high-fat diet. ASX was dissolved in flaxseed oil (1 g/kg; FO + ASX). Animals were fed diets containing 20% fat, where the source was lard, or 75% lard and 25% FO + ASX, or 50% lard and 50% FO + ASX, or FO + ASX, for 10 weeks...
March 13, 2017: Nutrients
https://www.readbyqxmd.com/read/28327588/pharmacological-inhibition-of-adipose-triglyceride-lipase-corrects-high-fat-diet-induced-insulin-resistance-and-hepatosteatosis-in-mice
#2
Martina Schweiger, Matthias Romauch, Renate Schreiber, Gernot F Grabner, Sabrina Hütter, Petra Kotzbeck, Pia Benedikt, Thomas O Eichmann, Sohsuke Yamada, Oskar Knittelfelder, Clemens Diwoky, Carina Doler, Nicole Mayer, Werner De Cecco, Rolf Breinbauer, Robert Zimmermann, Rudolf Zechner
Elevated circulating fatty acids (FAs) contribute to the development of obesity-associated metabolic complications such as insulin resistance (IR) and non-alcoholic fatty liver disease (NAFLD). Hence, reducing adipose tissue lipolysis to diminish the mobilization of FAs and lower their respective plasma concentrations represents a potential treatment strategy to counteract obesity-associated disorders. Here we show that specific inhibition of adipose triglyceride lipase (Atgl) with the chemical inhibitor, Atglistatin, effectively reduces adipose tissue lipolysis, weight gain, IR and NAFLD in mice fed a high-fat diet...
March 22, 2017: Nature Communications
https://www.readbyqxmd.com/read/28323124/cd44-is-a-key-player-in-non-alcoholic-steatohepatitis
#3
Stéphanie Patouraux, Déborah Rousseau, Stéphanie Bonnafous, Cynthia Lebeaupin, Carmelo Luci, Clémence M Canivet, Anne-Sophie Schneck, Adeline Bertola, Marie-Christine Saint-Paul, Antonio Iannelli, Jean Gugenheim, Rodolphe Anty, Albert Tran, Béatrice Bailly-Maitre, Philippe Gual
BACKGROUND: CD44 is expressed on many immune cells that contribute to inflammation. It has been shown, mainly through animal data, that CD44 regulates adipose tissue inflammation in obesity and hepatic leukocyte recruitment in a lithogenic context. However, its role in hepatic inflammation in a mouse model of steatohepatitis and its relevance in humans have not yet been investigated. METHODS: The role of CD44 was evaluated in CD44-/- mice and after injections of an αCD44 antibody in Wild-type mice challenged with a methionine- and choline-deficient diet (MCDD)...
March 16, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28319060/the-anti-diabetic-drug-exenatide-a-glucagon-like-peptide-1-receptor-agonist-counteracts-hepatocarcinogenesis-through-camp-pka-egfr-stat3-axis
#4
M Zhou, M T S Mok, H Sun, A W Chan, Y Huang, A S L Cheng, G Xu
Epidemiological studies have demonstrated a close association of type 2 diabetes and hepatocellular carcinoma (HCC). Exenatide (Ex-4), a potent diabetes drug targeting glucagon-like peptide-1 receptor (GLP-1R), is protective against non-alcoholic fatty liver disease (NAFLD). However, the Ex-4 function and GLP-1R status have yet been explored in HCC. Herein we investigated the effect of Ex-4 in diethylnitrosamine (DEN)-treated mice consuming control or high-fat high-carbohydrate diet. Administration of Ex-4 significantly improved obesity-induced hyperglycemia and hyperlipidemia and reduced HCC multiplicity in obese DEN-treated mice, in which suppressed proliferation and induced apoptosis were confined to tumor cells...
March 20, 2017: Oncogene
https://www.readbyqxmd.com/read/28315901/the-effect-of-sitagliptin-on-lipid-metabolism-of-fatty-liver-mice-and-related-mechanisms
#5
Bilin Xu, Tian Shen, Lin Chen, Juan Xia, Cuiping Zhang, Hongping Wang, Ming Yu, Tao Lei
BACKGROUND In clinics, patients with type 2 diabetes complicated with non-alcoholic fatty liver disease (NAFLD) have been shown to receive significant improvements in blood glucose levels, lipid levels, and liver function after sitagliptin treatment, although the mechanism of drug action remains poorly understood. This study investigated the possible mechanism of sitagliptin on lipid metabolism of NAFLD mice. MATERIAL AND METHODS Male C57/BL6 mice were induced for NAFLD via 16 weeks of a high-fat diet, and were treated with 15 mg/kg/day sitagliptin for 16 consecutive weeks...
March 19, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28300221/beneficial-effects-of-paeoniflorin-on-non-alcoholic-fatty-liver-disease-induced-by-high-fat-diet-in-rats
#6
Zhihong Ma, Li Chu, Hongying Liu, Weijie Wang, Jieru Li, Wenzao Yao, Jianfeng Yi, Yue Gao
Non-alcoholic fatty liver disease (NAFLD) is the most prevalent form of chronic liver diseases. This study sought to evaluate the insulin-sensitizing effect of paeoniflorin (PF) on high-fat diet-induced NAFLD and possible molecular mechanisms. Male Sprague Dawley rats were fed a high-fat diet (HFD) for 10 weeks to establish the NAFLD model, and PF (20 mg/kg/d) was gavaged to the NAFLD rats for another four weeks. Our results demonstrated that HFD resulted in hepatocellular ballooning, micro-/macrovesicular steatosis, and oxidative stress in the liver, accompanied by increased serum total cholesterol (TC), triglyceride (TG), free fatty acid (FFA), alanine aminotransferase (ALT), and aspartate aminotransferase (AST) levels and homeostasis model of insulin resistance (HOMA-IR) index...
March 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28300213/effect-of-modulation-of-ppar-%C3%AE-activity-on-kupffer-cells-m1-m2-polarization-in-the-development-of-non-alcoholic-fatty-liver-disease
#7
Wenjing Luo, Qinyu Xu, Qi Wang, Huimin Wu, Jing Hua
Abnormal lipid-mediated hepatic inflammatory-immune dysfunction and chronic low grade inflammation play an important role in the pathogenesis of non-alcoholic fatty liver disease (NAFLD). Macrophage polarization is an important mechanism for the regulation of inflammatory response. Since PPAR-γ has emerged as a master regulator of macrophage polarization, we aimed to investigate the lipid-induced macrophage/Kupffer cell polarization in vivo and in vitro, and explore the association between PPAR-γ activity and macrophages M1/M2 polarization shifting...
March 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28300161/foxo-transcription-factors-protect-against-the-diet-induced-fatty-liver-disease
#8
Xiaoyan Pan, Yang Zhang, Hyeong-Geug Kim, Suthat Liangpunsakul, X Charlie Dong
Forkhead O transcription factors (FOXOs) have been implicated in glucose and lipid homeostasis; however, the role of FOXOs in the development of nonalcoholic fatty liver disease (NAFLD) is not well understood. In this study, we designed experiments to examine the effects of two different diets-very high fat diet (HFD) and moderately high fat plus cholesterol diet (HFC)-on wildtype (WT) and liver-specific Foxo1/3/4 triple knockout mice (LTKO). Both diets induced severe hepatic steatosis in the LTKO mice as compared to WT controls...
March 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28298270/nutritional-approaches-to-achieve-weight-loss-in-nonalcoholic-fatty-liver-disease
#9
REVIEW
Christine C Hsu, Erik Ness, Kris V Kowdley
Nonalcoholic fatty liver disease (NAFLD) can range in spectrum from simple hepatic steatosis to nonalcoholic steatohepatitis (NASH), which is characterized by lipotoxicity, hepatocellular ballooning, and inflammation and can progress to cirrhosis. Weight loss is the cornerstone treatment for NAFLD and NASH. Various randomized controlled trials have shown that weight loss of ≥5-10% leads to significant improvements in hepatic steatosis. Diets high in sodium and fructose have been implicated in the pathogenesis of NAFLD...
March 2017: Advances in Nutrition
https://www.readbyqxmd.com/read/28298269/nonalcoholic-fatty-liver-disease-the-gut-microbiome-and-diet
#10
REVIEW
Zeinab Mokhtari, Deanna L Gibson, Azita Hekmatdoost
Nonalcoholic fatty liver disease (NAFLD) is the most common liver disorder in the world, yet the pathogenesis of the disease is not well elucidated. Due to the close anatomic and functional association between the intestinal lumen and the liver through the portal system, it is speculated that the gut microbiome may play a pivotal role in the pathogenesis of NAFLD. Furthermore, diet, which can modulate the gut microbiome and several metabolic pathways involved in NAFLD development, shows a potential tripartite relation between the gut, diet, and the liver...
March 2017: Advances in Nutrition
https://www.readbyqxmd.com/read/28284571/dynamic-mechanical-analysis-to-assess-viscoelasticity-of-liver-tissue-in-a-rat-model-of-nonalcoholic-fatty-liver-disease
#11
Xinyu Zhang, Xuehua Gao, Pengpeng Zhang, Yanrong Guo, Haoming Lin, Xianfen Diao, Yingxia Liu, Changfeng Dong, Yaxin Hu, Siping Chen, Xin Chen
Nonalcoholic fatty liver disease (NAFLD) is the most common liver disorder in both developed and developing countries. A noninvasive method of detecting early stage NAFLD and distinguishing non-alcoholic steatohepatitis (NASH) from simple steatosis (SS) would be useful. The over-accumulation of fat in hepatocytes alters the physical microstructure and chemical contents of the liver tissue. This study included dynamic mechanical analysis (DMA) testing on liver samples from a rat model of NAFLD to determine whether the tissue shows any significant changes in viscoelasticity due to the histological changes...
March 8, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28278289/toyocamycin-attenuates-free-fatty-acid-induced-hepatic-steatosis-and-apoptosis-in-cultured-hepatocytes-and-ameliorates-nonalcoholic-fatty-liver-disease-in-mice
#12
Ikuko Takahara, Yuko Akazawa, Maiko Tabuchi, Katsuya Matsuda, Hisamitsu Miyaaki, Youko Kido, Yasuko Kanda, Naota Taura, Ken Ohnita, Fuminao Takeshima, Yusuke Sakai, Susumu Eguchi, Masahiro Nakashima, Kazuhiko Nakao
BACKGROUND AND AIMS: A high serum level of saturated free fatty acids (FFAs) is associated with the development of nonalcoholic fatty liver disease (NAFLD). X-box binding protein-1 (XBP-1) is activated by FFA treatment upon splicing. XBP-1 is a transcription factor induced by the endoplasmic reticulum (ER) stress sensor endoribonuclease inositol-requiring enzyme 1 alpha (IRE1α). However, the role of XBP-1 in NAFLD remains relatively unexplored. Toyocamycin was recently reported to attenuate the activation of XBP-1, possibly by inducing a conformational change in IRE1α...
2017: PloS One
https://www.readbyqxmd.com/read/28273805/fructose%C3%A2-and%C3%A2-nafld-%C3%A2-the%C3%A2-multifaceted%C3%A2-aspects%C3%A2-of%C3%A2-fructose%C3%A2-metabolism
#13
REVIEW
Prasanthi Jegatheesan, Jean-Pascal De Bandt
Among various factors, such as an unhealthy diet or a sedentarity lifestyle, excessive fructose consumption is known to favor nonalcoholic fatty liver disease (NAFLD), as fructose is both a substrate and an inducer of hepatic de novo lipogenesis. The present review presents some well-established mechanisms and new clues to better understand the pathophysiology of fructose-induced NAFLD. Beyond its lipogenic effect, fructose intake is also at the onset of hepatic inflammation and cellular stress, such as oxidative and endoplasmic stress, that are key factors contributing to the progression of simple steatosis to nonalcoholic steatohepatitis (NASH)...
March 3, 2017: Nutrients
https://www.readbyqxmd.com/read/28271632/the-role-of-insufficient-copper-in-lipid-synthesis-and-fatty-liver-disease
#14
REVIEW
Austin Morrell, Savannah Tallino, Lei Yu, Jason L Burkhead
The essential transition metal copper is important in lipid metabolism, redox balance, iron mobilization, and many other critical processes in eukaryotic organisms. Genetic diseases where copper homeostasis is disrupted, including Menkes disease and Wilson disease, indicate the importance of copper balance to human health. The severe consequences of insufficient copper supply are illustrated by Menkes disease, caused by mutation in the X-linked ATP7A gene encoding a protein that transports copper from intestinal epithelia into the bloodstream and across the blood-brain barrier...
March 8, 2017: IUBMB Life
https://www.readbyqxmd.com/read/28271032/bezafibrate-ameliorates-diabetes-via-reduced-steatosis-and-improved-hepatic-insulin-sensitivity-in-diabetic-tallyho-mice
#15
Andras Franko, Susanne Neschen, Jan Rozman, Birgit Rathkolb, Michaela Aichler, Annette Feuchtinger, Laura Brachthäuser, Frauke Neff, Marketa Kovarova, Eckhard Wolf, Helmut Fuchs, Hans-Ulrich Häring, Andreas Peter, Martin Hrabě de Angelis
OBJECTIVE: Recently, we have shown that Bezafibrate (BEZ), the pan-PPAR (peroxisome proliferator-activated receptor) activator, ameliorated diabetes in insulin deficient streptozotocin treated diabetic mice. In order to study whether BEZ can also improve glucose metabolism in a mouse model for fatty liver and type 2 diabetes, the drug was applied to TallyHo mice. METHODS: TallyHo mice were divided into an early (ED) and late (LD) diabetes progression group and both groups were treated with 0...
March 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/28270609/ablation-of-cytochrome-p450-omega-hydroxylase-4a14-gene-attenuates-hepatic-steatosis-and-fibrosis
#16
Xiaoyan Zhang, Sha Li, Yunfeng Zhou, Wen Su, Xiongzhong Ruan, Bing Wang, Feng Zheng, Margaret Warner, Jan-Åke Gustafsson, Youfei Guan
Nonalcoholic fatty liver disease (NAFLD) is characterized by simple hepatic steatosis (SS), nonalcoholic steatohepatitis (NASH), hepatic fibrosis, and cirrhosis. Dysregulated fatty acid metabolism in the liver plays a critical role in the pathogenesis of NAFLD. Cytochrome P450 omega-hydroxylase 4A14 (CYP4A14) is a homolog of human CYP4A hydroxylase that catalyzes omega-hydroxylation of medium-chain fatty acids and arachidonic acid in mice. The goal of this study was to determine the role of CYP4A14 in the development and the progression of NAFLD...
March 7, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28260907/effect-of-orlistat-on-periostin-adiponectin-inflammatory-markers-and-ultrasound-grades-of-fatty-liver-in-obese-nafld-patients
#17
Rashid Ali Khan, Prem Kapur, Abhinav Jain, Farrukh Farah, Uma Bhandari
Orlistat is recommended in the treatment of obesity, which is an independent risk factor for nonalcoholic fatty liver disease (NAFLD). The reported findings of orlistat in NAFLD are divisive. Recently, periostin is identified as an important regulatory molecule in the pathogenesis of obesity-induced fatty liver. Therefore, this study aimed to evaluate the potential effects of orlistat in the treatment of NAFLD. A 16-week prospective observational study was conducted, with obese NAFLD patient (n=77) receiving orlistat (120 mg capsules, three times a day) with hypocaloric diet or hypocaloric diet only...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28260070/a-long-lasting-dipeptidyl-peptidase-4-inhibitor-teneligliptin-as-a-preventive-drug-for-the-development-of-hepatic-steatosis-in-high-fructose-diet-fed-ob-ob-mice
#18
Ken Nakamura, Shinya Fukunishi, Keisuke Yokohama, Hideko Ohama, Yusuke Tsuchimoto, Akira Asai, Yasuhiro Tsuda, Kazuhide Higuchi
Non-alcoholic fatty liver disease (NAFLD) occurs in patients with components of metabolic syndrome such as type 2 diabetes mellitus (T2DM). At present, the central pathophysiological problem in patients afflicted with NAFLD is insulin resistance. In this study, we aimed to determine the effects of a dipeptidyl peptidase-4 (DPP-4) inhibitor, teneligliptin, on the development of NAFLD in ob/ob mice. Five-week-old male ob/ob mice were divided into 4 experimental groups as follows: a group in which they were fed a high carbohydrate diet (HCD) for 8 weeks (n=8) as controls (control group 1), a group in which they were fed HCD supplemented with 0...
February 20, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28257515/new-evidence-for-the-therapeutic-potential-of-curcumin-to-treat-nonalcoholic-fatty-liver-disease-in-humans
#19
María Eugenia Inzaugarat, Elena De Matteo, Placida Baz, Diego Lucero, Cecilia Claudia García, Esteban Gonzalez Ballerga, Jorge Daruich, Juan Antonio Sorda, Miriam Ruth Wald, Alejandra Claudia Cherñavsky
INTRODUCTION: The immune system acts on different metabolic tissues that are implicated in the pathogenesis of nonalcoholic fatty liver disease (NAFLD). Leptin and linoleic acid have the ability to potentially affect immune cells, whereas curcumin is a known natural polyphenol with antioxidant and anti-inflammatory properties. AIMS: This study was designed to evaluate the pro-inflammatory and pro-oxidant effects of leptin and linoleic acid on immune cells from patients with NAFLD and to corroborate the modulatory effects of curcumin and its preventive properties against the progression of NAFLD using a high-fat diet (HFD)-induced NAFLD/nonalcoholic steatohepatitis mouse model...
2017: PloS One
https://www.readbyqxmd.com/read/28254760/personal-model-assisted-identification-of-nad-and%C3%A2-glutathione-metabolism-as-intervention-target-in-nafld
#20
Adil Mardinoglu, Elias Bjornson, Cheng Zhang, Martina Klevstig, Sanni Söderlund, Marcus Ståhlman, Martin Adiels, Antti Hakkarainen, Nina Lundbom, Murat Kilicarslan, Björn M Hallström, Jesper Lundbom, Bruno Vergès, Peter Hugh R Barrett, Gerald F Watts, Mireille J Serlie, Jens Nielsen, Mathias Uhlén, Ulf Smith, Hanns-Ulrich Marschall, Marja-Riitta Taskinen, Jan Boren
To elucidate the molecular mechanisms underlying non-alcoholic fatty liver disease (NAFLD), we recruited 86 subjects with varying degrees of hepatic steatosis (HS). We obtained experimental data on lipoprotein fluxes and used these individual measurements as personalized constraints of a hepatocyte genome-scale metabolic model to investigate metabolic differences in liver, taking into account its interactions with other tissues. Our systems level analysis predicted an altered demand for NAD(+) and glutathione (GSH) in subjects with high HS Our analysis and metabolomic measurements showed that plasma levels of glycine, serine, and associated metabolites are negatively correlated with HS, suggesting that these GSH metabolism precursors might be limiting...
March 2, 2017: Molecular Systems Biology
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