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Nonalcoholic fat liver disease

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https://www.readbyqxmd.com/read/28425467/hyperpolarized-13-c-spectroscopic-evaluation-of-oxidative-stress-in-a-rodent-model-of-steatohepatitis
#1
David M Wilson, Valentina Di Gialleonardo, Zhen J Wang, Valerie Carroll, Cornelius Von Morze, Andrew Taylor, Victor Sai, Mark VanCriekinge, Robert Bok, Michael A Ohliger, Kayvan R Keshari
Nonalcoholic fatty liver disease (NAFLD) has become highly prevalent, now considered the most common liver disease in the western world. Approximately one-third of patients with NASH develop non-alchoholic steatohepatitis (NASH), histologically defined by lobular and portal inflammation, and accompanied by marked oxidative stress. Patients with NASH are at increased risk for cirrhosis and hepatocellular carcinoma, and diagnosis currently requires invasive biopsy. In animal models of NASH, particularly the methionine-choline deficient (MCD) model, profound changes are seen in redox enzymes and key intracellular antioxidants...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28422962/docosahexaenoic-acid-blocks-progression-of-western-diet-induced-nonalcoholic-steatohepatitis-in-obese-ldlr-mice
#2
Kelli A Lytle, Carmen P Wong, Donald B Jump
BACKGROUND: Nonalcoholic fatty liver disease (NAFLD) is a major public health concern in western societies. Nonalcoholic steatohepatitis (NASH), the progressive form of NAFLD, is characterized by hepatic steatosis, inflammation, oxidative stress and fibrosis. NASH is a risk factor for cirrhosis and hepatocellular carcinoma. NASH is predicted to be the leading cause of liver transplants by 2020. Despite this growing public health concern, there remain no Food and Drug Administration (FDA) approved NASH treatments...
2017: PloS One
https://www.readbyqxmd.com/read/28422749/obesity-induced-hepatic-steatosis-is-mediated-by-endoplasmic-reticulum-stress-in-the-subfornical-organ-of-the-brain
#3
Julie A Horwath, Chansol Hurr, Scott D Butler, Mallikarjun Guruju, Martin D Cassell, Allyn L Mark, Robin L Davisson, Colin N Young
Nonalcoholic fatty liver disease (NAFLD), characterized by an excess accumulation of hepatic triglycerides, is a growing health epidemic. While ER stress in the liver has been implicated in the development of NAFLD, the role of brain ER stress - which is emerging as a key contributor to a number of chronic diseases including obesity - in NAFLD remains unclear. These studies reveal that chemical induction of ER stress in the brain caused hepatomegaly and hepatic steatosis in mice. Conversely, pharmacological reductions in brain ER stress in diet-induced obese mice rescued NAFLD independent of body weight, food intake, and adiposity...
April 20, 2017: JCI Insight
https://www.readbyqxmd.com/read/28420164/the-angiogenesis-inhibitor-als-l1023-from-lemon-balm-leaves-attenuates-high-fat-diet-induced-nonalcoholic-fatty-liver-disease-through-regulating-the-visceral-adipose-tissue-function
#4
Jeongjun Kim, Haerim Lee, Jonghoon Lim, Jaeho Oh, Soon Shik Shin, Michung Yoon
Similar to neoplastic tissues, growth and development of adipose tissue are thought to be angiogenesis-dependent. Since visceral adipose tissue (VAT) is associated with development and progression of nonalcoholic fatty liver disease (NAFLD), we hypothesized that angiogenesis inhibition would attenuate obesity-induced NAFLD. We fed C57BL/6J mice a low-fat diet (LFD, chow 10% kcal fat), a high-fat diet (HFD, 45% kcal fat) or HFD supplemented with the lemon-balm extract ALS-L1023 (HFD-ALS) for 15 weeks. ALS-L1023 reduced endothelial cell-tube formation in vitro...
April 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28419582/free-breathing-liver-fat-quantification-using-a-multiecho-3d-stack-of-radial-technique
#5
Tess Armstrong, Isabel Dregely, Alto Stemmer, Fei Han, Yutaka Natsuaki, Kyunghyun Sung, Holden H Wu
PURPOSE: The diagnostic gold standard for nonalcoholic fatty liver disease is an invasive biopsy. Noninvasive Cartesian MRI fat quantification remains limited to a breath-hold (BH). In this work, a novel free-breathing 3D stack-of-radial (FB radial) liver fat quantification technique is developed and evaluated in a preliminary study. METHODS: Phantoms and healthy subjects (n = 11) were imaged at 3 Tesla. The proton-density fat fraction (PDFF) determined using FB radial (with and without scan acceleration) was compared to BH single-voxel MR spectroscopy (SVS) and BH 3D Cartesian MRI using linear regression (correlation coefficient ρ and concordance coefficient ρc ) and Bland-Altman analysis...
April 16, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28414138/apigenin-a-modulator-of-ppar%C3%AE-attenuates-hfd-induced-nafld-by-regulating-hepatocyte-lipid-metabolism-and-oxidative-stress-via-nrf2-activation
#6
Xiujing Feng, Wen Yu, Xinda Li, Feifei Zhou, Wenlong Zhang, Qi Shen, Jianxin Li, Can Zhang, Pingping Shen
Lipid metabolic disorders and oxidative stress in the liver are key steps in the progression of nonalcoholic fatty liver disease (NAFLD), which is a major risk factor for the development of metabolic syndrome. To date, no pharmacological treatment for this condition has been approved. Our previous study has found that the food-derived compound apigenin (Api) significantly attenuates obesity-induced metabolic syndrome by acting as a peroxisome proliferator-activated receptor gamma modulator (PPARM). Herein, a high fat diet (HFD) induced NAFLD model was used to dig out whether Api had the effect on NAFLD...
April 13, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28398481/mertk-rs4374383-variant-predicts-incident-nonalcoholic-fatty-liver-disease-and-diabetes-role-of-mononuclear-cell-activation-and-adipokine-response-to-dietary-fat
#7
Giovanni Musso, Maurizio Cassader, Franco De Michieli, Elena Paschetta, Silvia Pinach, Francesca Saba, Daria Bongiovanni, Luciana Framarin, Mara Berrutti, Nicola Leone, Stefania Corvisieri, Renato Parente, Federica Molinaro, Antonio Sircana, Simona Bo, Roberto Gambino
No abstract text is available yet for this article.
April 7, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28392354/lower-circulating-irisin-is-associated-with-nonalcoholic-fatty-liver-disease-and-type-2-diabetes
#8
Mehrnoosh Shanaki, Nariman Moradi, Solaleh Emamgholipour, Reza Fadaei, Hossein Poustchi
Irisin, a novel adipokine secreted by adipose tissue, is hypothesized to play a crucial role in metabolism. The objective of this study was to determine the plasma levels of irisin and adiponectin in patients with NAFLD (n=41), T2DM (n=41) and NAFLD with T2DM (NAFLD+T2DM) (n=40) in comparison with healthy subjects (n=40) and also to investigate the possible association of irisin levels with NAFLD and diabetes-related indices. The anthropometric and biochemical parameters were measured in all subjects. Plasma levels of irisin and adiponectin were measured by ELISA...
March 31, 2017: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/28387617/oral-administration-of-%C3%AE-glucosylceramide-for-the-treatment-of-insulin-resistance-and-nonalcoholic-steatohepatitis-results-of-a-double-blind-placebo-controlled-trial
#9
Gadi Lalazar, Ehud Zigmond, Sarah Weksler-Zangen, Ami Ben Ya'acov, Miriam Sklair Levy, Nilla Hemed, Itamar Raz, Yaron Ilan
β-glucosylceramide (GC) is a naturally occurring glycosphingolipid that was shown to improve hepatic steatosis, steatohepatitis, and insulin resistance in animal models of nonalcoholic fatty liver disease. In this study, we evaluated the safety and efficacy of oral administration of GC in subjects with nonalcoholic steatohepatitis (NASH). Twenty-three patients with biopsy proven NASH were enrolled in a double-blind, placebo-controlled trial. Patients were orally administered daily with 7.5 mg of GC. Patients were followed for safety, liver enzymes, HbA1c, insulin sensitivity, lipid profile, hepatic fat content as measured by magnetic resonance imaging (MRI), and NASH score on liver biopsy...
April 7, 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28386270/fimasartan-ameliorates-nonalcoholic-fatty-liver-disease-through-ppar%C3%AE-regulation-in-hyperlipidemic-and-hypertensive-conditions
#10
Yong-Jik Lee, Yoo-Na Jang, Yoon-Mi Han, Hyun-Min Kim, Jong-Min Jeong, Hong Seog Seo
To investigate the effects of fimasartan on nonalcoholic fatty liver disease in hyperlipidemic and hypertensive conditions, the levels of biomarkers related to fatty acid metabolism were determined in HepG2 and differentiated 3T3-L1 cells treated by high fatty acid and liver and visceral fat tissue samples of spontaneously hypertensive rats (SHRs) given high-fat diet. In HepG2 cells and liver tissues, fimasartan was shown to increase the protein levels of peroxisome proliferator-activated receptor delta (PPARδ), phosphorylated 5' adenosine monophosphate-activated protein kinase (p-AMPK), phosphorylated acetyl-CoA carboxylase (p-ACC), malonyl-CoA decarboxylase (MCD), medium chain acyl-CoA dehydrogenase (MCAD), and peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1α), and it led to a decrease in the protein levels of 11 beta-hydroxysteroid dehydrogenase 1 (11β-HSDH1), fatty acid synthase (FAS), and tumor necrosis factor-alpha (TNF-α)...
2017: PPAR Research
https://www.readbyqxmd.com/read/28373762/traditional-chinese-herbal-extracts-inducing-autophagy-as-a-novel-approach-in-therapy-of-nonalcoholic-fatty-liver-disease
#11
REVIEW
Cong Liu, Jia-Zhi Liao, Pei-Yuan Li
Non-alcoholic fatty liver disease (NAFLD) is one of the leading causes of chronic liver diseases around the world due to the modern sedentary and food-abundant lifestyle, which is characterized by excessive fat accumulation in the liver related with causes other than alcohol abuse. It is widely acknowledged that insulin resistance, dysfunctional lipid metabolism, endoplasmic reticulum stress, oxidative stress, inflammation, and apoptosis/necrosis may all contribute to NAFLD. Autophagy is a protective self-digestion of intracellular organelles, including lipid droplets (lipophagy), in response to stress to maintain homeostasis...
March 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28359088/sex-hormone-binding-globulin-reduction-in-metabolic-disorders-may-play-a-role-in-nafld-development
#12
Cristina Saez-Lopez, Anna Barbosa-Desongles, Cristina Hernandez, Roger A Dyer, Sheila M Innis, Rafael Simó, David M Selva
Low plasma sex hormone-binding globulin (SHBG) levels are a hallmark in chronic metabolic diseases, including nonalcoholic fatty liver disease (NAFLD), which represents a spectrum of disease ranging from hepatocellular steatosis through steatohepatitis to fibrosis and irreversible cirrhosis. The functional link between altered SHBG production and NAFLD development and progression remains unclear. We investigated the effects of overexpressing human SHBG in 2 mouse models of NAFLD: a genetically induced double transgenic mouse and a diet-induced model...
March 1, 2017: Endocrinology
https://www.readbyqxmd.com/read/28346857/the-influence-of-epicardial-fat-and-nonalcoholic-fatty-liver-disease-on-heart-rate-recovery-in-metabolic-syndrome
#13
Kyoung Im Cho, Eun Ah Jo, Sang Hoon Cho, Bo Hyun Kim
BACKGROUND: Epicardial adipose tissues reflecting visceral fat accumulations of the heart are associated with metabolic syndrome (MetS) and can be a predictor of other cardiometabolic diseases. It can adversely influence autonomic nervous system (ANS) of heart. Heart rate recovery (HRR) is an easy method for measuring ANS dysfunction. The purpose of this study was to determine whether epicardial fat thickness (EFT) and nonalcoholic fatty liver disease (NAFLD) are related to HRR in patients with MetS...
March 27, 2017: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/28337300/mutation-of-mir-21-targets-endogenous-lipoprotein-receptor-related-protein-6-and-nonalcoholic-fatty-liver-disease
#14
Chang-Ping Li, Hong-Jue Li, Jiao Nie, Xia Chen, Xian Zhou
Nonalcoholic fatty liver disease (NAFLD) is a chronic disorder characterized by hepatic fat accumulation and abnormal lipid metabolism. Although miR-21 has been implicated in nonalcoholic fatty liver disease, it is unknown whether miR-21 could function as a therapeutic target. Here, we perform transfection analysis of miR-21 mimic or control mimic to evaluate the effects of miR-21 expression levels on human HepG2 nonalcoholic fatty liver cells. We used siRNA techniques to knock down miR-21 in HepG2 and control 293T cell lines, and then monitored lipid production and the expression levels of genes involved in lipid metabolism...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28334911/mertk-rs4374383-variant-predicts-incident-nonalcoholic-fatty-liver-disease-and-diabetes-role-of-mononuclear-cell-activation-and-adipokine-response-to-dietary-fat
#15
Giovanni Musso, Maurizio Cassader, Franco De Michieli, Elena Paschetta, Silvia Pinach, Francesca Saba, Daria Bongiovanni, Luciana Framarin, Mara Berrutti, Nicola Leone, Stefania Corvisieri, Renato Parente, Federica Molinaro, Antonio Sircana, Bo Simona, Roberto Gambino
The loss-of-function rs4374383 G>A variant in Myeloid-epithelial-reproductive Tyrosine Kinase (MERTK) gene has been linked to hepatic fibrosis in chronic liver diseases. MERTK is expressed by immune and non-immune cells involved in inflammation, metabolism and vascular homeostasis. We assessed the impact of MERTK rs4374383 G>A variant on nonalcoholic fatty liver disease (NAFLD) incidence and severity and on glucose and lipid metabolism.We followed-up 305 healthy nonobese nondiabetic, metabolic syndrome-free insulin sensitive participants in a population-based study, characterized for MERTK G>A polymorphism, adipokine profile and inflammatory markers...
March 8, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28333140/metabolic-and-molecular-insights-into-an-essential-role-of-nicotinamide-phosphoribosyltransferase
#16
Li Q Zhang, Leon Van Haandel, Min Xiong, Peixin Huang, Daniel P Heruth, Charlie Bi, Roger Gaedigk, Xun Jiang, Ding-You Li, Gerald Wyckoff, Dmitry N Grigoryev, Li Gao, Linheng Li, Min Wu, J Steven Leeder, Shui Qing Ye
Nicotinamide phosphoribosyltransferase (NAMPT) is a pleiotropic protein implicated in the pathogenesis of acute respiratory distress syndrome, aging, cancer, coronary heart diseases, diabetes, nonalcoholic fatty liver disease, obesity, rheumatoid arthritis, and sepsis. However, the underlying molecular mechanisms of NAMPT in these physiological and pathological processes are not fully understood. Here, we provide experimental evidence that a Nampt gene homozygous knockout (Nampt(-/-)) resulted in lethality at an early stage of mouse embryonic development and death within 5-10 days in adult mice accompanied by a 25...
March 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28332619/retinol-binding-protein-4-levels-and-non-alcoholic-fatty-liver-disease-a-community-based-cross-sectional-study
#17
Xuechen Chen, Tianran Shen, Qing Li, Xu Chen, Yanping Li, Dan Li, Gengdong Chen, Wenhua Ling, Yu-Ming Chen
Previous reports on the association between retinol binding protein 4 (RBP4) and nonalcoholic fatty liver disease (NAFLD) were controversial. This study aimed to investigate the association between the serum RBP4 levels and occurrence of NAFLD in Chinese population. In total, 2938 participants aged 40-75 years were involved in this community-based cross-sectional study. General information, lifestyle factors, serum levels of RBP4 and the presence of NAFLD were determined. Patients with NAFLD had significantly higher concentrations of RBP4 (37...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28332301/a-randomized-trial-comparing-gliclazide-liraglutide-and-metformin-effects-on-diabetes-with-nonalcoholic-fatty-liver-disease
#18
Wenhuan Feng, Caixia Gao, Yan Bi, Min Wu, Ping Li, Shanmei Shen, Wei Chen, Tingting Yin, Dalong Zhu
OBJECTIVE: To compare the effects of gliclazide, liraglutide, and metformin in type 2 diabetes mellitus (T2DM) patients with non-alcoholic fatty liver disease (NAFLD). METHODS: Eighty-seven subjects were randomized to receive liraglutide, metformin, or gliclazide for 24 weeks. Primary outcomes included hemoglobin A1c (HbA1c) levels, intrahepatic fat (IHF) content, and liver function. RESULTS: HbA1c levels and IHF content reduced after treatment in the three groups...
March 23, 2017: Journal of Diabetes
https://www.readbyqxmd.com/read/28325574/decoy-receptor-3-analogous-supplement-protects-steatotic-rat-liver-from-ischemia-reperfusion-injury
#19
Tzu-Hao Li, Chih-Wei Liu, Pei-Chang Lee, Chia-Chang Huang, Kuei-Chuan Lee, Yun-Cheng Hsieh, Ying-Ying Yang, Shie-Liang Hsieh, Han-Chieh Lin, Chang-Youh Tsai
BACKGROUND: For steatotic livers, pharmacological approaches to minimize the hepatic neutrophil and macrophage infiltration, and cytokine and chemokine release in ischemia-reperfusion (IR) injury are still limited. Tumor necrosis factor (TNF)-α superfamily-stimulated pathogenic cascades and M1 macrophage/Kupffer cells (KC) polarization from Th1 cytokines are important in the pathogenesis of IR liver injury with hepatic steatosis (HS). Conversely, anti-inflammatory M2 macrophages produce Th2 cytokine (interleukin-4), which reciprocally enhances M2 polarization...
March 16, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/28322576/the-effects-of-exercise-on-abdominal-fat-and-liver-enzymes-in-pediatric-obesity-a-systematic-review-and-meta-analysis
#20
Katherine González-Ruiz, Robinson Ramírez-Vélez, Jorge Enrique Correa-Bautista, Mark D Peterson, Antonio García-Hermoso
BACKGROUND: Despite the prevalence of obesity and the multiple position stands promoting exercise for the treatment of obesity and hepatic function, a meta-analytic approach has not previously been used to examine the effects in the pediatric population. The aim of the study was to determine the effectiveness of exercise interventions on abdominal fat, liver enzymes, and intrahepatic fat in overweight and obese youth. MATERIALS AND METHODS: A computerized search was made using three databases...
March 21, 2017: Childhood Obesity
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