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resveratrol and nafld

Yueli Tian, Jingting Ma, Wudong Wang, Lingjuan Zhang, Jia Xu, Kai Wang, Dongfu Li
Nonalcoholic fatty liver disease (NAFLD) is characterized by high levels of nonesterified fatty acids (NEFA), inflammation, and hepatic steatosis. Inflammation plays a crucial role in the development of fatty liver. Resveratrol (RSV) supplement could improve inflammatory response and hepatic steatosis, whereas the underlying mechanism was not well understood. In this study, mice fed with high-fat diet (HFD) exhibited severe hepatic injury and high blood concentrations of the inflammatory cytokines TNF-α, IL-6, and IL-1β...
November 2016: Molecular and Cellular Biochemistry
Chongyang Zhang, Weigang Yuan, Jianguo Fang, Wenqing Wang, Pei He, Jiahui Lei, Chunxu Wang
Non-alcoholic fatty liver disease (NAFLD) is the most common chronic liver disease with rising prevalence. Increasing evidence has demonstrated that resveratrol, a dietary phytochemical, is capable of attenuating NAFLD development and progression; however, results from clinical studies are inconsistent and inconclusive. Here, we conducted a meta-analysis to evaluate the efficacy of resveratrol on NAFLD, using several parameters to provide new insights for clinical application. We systematically searched EMBASE, PubMed, Science Citation Index, Elsevier, and Cochrane Library databases for studies published up to date (July 2016), in English, to identify and screen eligible, relevant studies...
2016: PloS One
Jung Hee Shin, Ji Hye Jung
Non-alcoholic fatty liver disease (NAFLD) is an accumulation of fat in the liver despite a low level of alcohol intake, with signs of hepatomegaly. Although in the past, NAFLD was predominantly viewed as an aspect of metabolic syndrome, it is now considered that it should be classified as an independent condition similar to obesity, diabetes, and hypertension. Therefore, new treatment strategies, not based on correcting insulin resistance, are needed for NAFLD. This work analyzes methods of prevention, therapeutic approaches, and mechanisms involved in NAFLD, focusing on the use of flavonoids (epigallocatechin-3-gallate, resveratrol, anthocyanins, and isoflavones) with high antioxidant capacity...
August 18, 2016: Clinics and Research in Hepatology and Gastroenterology
Sara Heebøll, Martin Kreuzfeldt, Stephen Hamilton-Dutoit, Marianne Kjær Poulsen, Hans Stødkilde-Jørgensen, Holger Jon Møller, Niels Jessen, Kasper Thorsen, Ylva Kristina Hellberg, Steen Bønløkke Pedersen, Henning Grønbæk
OBJECTIVE: "The obesity epidemic" has led to an increase in obesity-related conditions including non-alcoholic fatty liver disease (NAFLD), for which effective treatments are in demand. The polyphenol resveratrol prevents the development of experimental NAFLD through modulation of cellular pathways involved in calorie restriction. We aimed to test the hypothesis that resveratrol alleviates NAFLD in a randomised, clinical trial. MATERIALS AND METHODS: A total of 28 overweight patients with transaminasemia and histological NAFLD were randomised 1:1 to placebo or resveratrol 1...
2016: Scandinavian Journal of Gastroenterology
Wenjing Zeng, Wen Shan, Lili Gao, Dongyan Gao, Yan Hu, Guangzhi Wang, Ning Zhang, Zhenlu Li, Xiaofeng Tian, Wei Xu, Jinyong Peng, Xiaochi Ma, Jihong Yao
The inflammatory mediator high-mobility group box 1 (HMGB1) plays a critical role in the pathogenesis of non-alcoholic fatty liver disease (NAFLD). However, the regulation of HMGB1 in NAFLD, particularly through sirtuin 1 (SIRT1), remains unclear. In this study, we investigated the role of SIRT1-mediated inhibition of HMGB1 release in NAFLD and the effect of salvianolic acid B (SalB), which is a water-soluble phenolic acid extracted from Radix Salvia miltiorrhiza, on NAFLD through SIRT1/HMGB1 signaling. In vivo, SalB treatment significantly attenuated high-fat diet (HFD)-induced liver damage, hepatic steatosis, and inflammation...
2015: Scientific Reports
Federico Salomone, Justyna Godos, Shira Zelber-Sagi
Non-alcoholic steatohepatitis (NASH), the progressive form of non-alcoholic fatty liver disease (NAFLD), is emerging as a main health problem in industrialized countries. Lifestyle modifications are effective in the treatment of NAFLD; however, the long-term compliance is low. Therefore, several pharmacological treatments have been proposed but none has shown significant efficacy or long-term safety. Natural polyphenols are a heterogeneous class of polyphenolic compounds contained in vegetables, which are being proposed for the treatment of different metabolic disorders...
January 2016: Liver International: Official Journal of the International Association for the Study of the Liver
Sara Heebøll, Rime Bahij El-Houri, Ylva Erika Kristina Hellberg, David Haldrup, Steen Bønløkke Pedersen, Niels Jessen, Lars Porskjaer Christensen, Henning Grønbaek
BACKGROUND AND AIM: Non-alcoholic steatohepatitis (NASH) is a leading cause of chronic liver disease with few therapeutic options. Resveratrol (RSV) prevents the development of steatosis in a number of experimental fatty liver (non-alcoholic fatty liver [NAFL]) models, but the preventive or therapeutic effects on experimental NASH are not yet clarified, and clinical results on non-alcoholic fatty liver disease are ambiguous. Thus, we aimed to compare the RSV-mediated preventive and therapeutic effects on experimental NAFL and NASH...
March 2016: Journal of Gastroenterology and Hepatology
Brandy Wicklow, Kristy Wittmeier, Geert W T' Jong, Jonathon McGavock, Marni Robert, Todd Duhamel, Vernon W Dolinsky
Non-alcoholic fatty liver (NAFL) disease (NAFLD) affects 30% of overweight adolescents and increases the risk of type 2 diabetes mellitus (T2D). Resveratrol is a naturally occurring compound with potential to reverse NAFL and its associated insulin resistance in adults. The use of resveratrol to reduce risk for T2D through its effect on NAFL has not been examined to date in youth. This paper provides a literature review and protocol for a 30 day proof of principle trial of resveratrol in a population of adolescents at risk for T2D...
October 2015: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
C A Onyekwere, A O Ogbera, A A Samaila, B O Balogun, F B Abdulkareem
Non-alcoholic fatty liver disease (NAFLD) which is defined as the accumulation of fat>5% of liver weight is increasingly becoming an important cause of chronic liver disease. This article tries to chronicle advances that have occurred in the understanding of the pathogenesis, pathology as well as the management of this disease. We have done a Medline search on published work on the subject and reviewed major conference proceedings in the preceding years. The Pathogenesis involves a multi-hit process in which increased accumulation of triglycerides in face of insulin resistance results in increased susceptibility to inflammatory damage mediated by increased expression of inflammatory cytokines and adipokines, oxidative stress and mitochondrial dysfunction, endoplasmic reticulum stress and gut derived endotoxemia...
November 2015: Nigerian Journal of Clinical Practice
Forouzan Faghihzadeh, Payman Adibi, Azita Hekmatdoost
Non-alcoholic fatty liver disease (NAFLD) is usually associated with insulin resistance, central obesity, reduced glucose tolerance, type 2 diabetes mellitus and hypertriacylglycerolaemia. The beneficial effects of resveratrol on metabolic disorders have been shown previously. The aim of this study was to evaluate the effects of resveratrol supplementation on cardiovascular risk factors in patients with NAFLD. In this randomised double-blinded placebo-controlled clinical trial, fifty NAFLD patients were supplemented with either a 500-mg resveratrol capsule or a placebo capsule for 12 weeks...
September 14, 2015: British Journal of Nutrition
Mahmoud Hussein Hassan Ali, Basim Anwar Shehata Messiha, Hekma Abdel-Tawab Abdel-Latif
CONTEXT: Nonalcoholic fatty liver disease (NAFLD) is the most common chronic liver disease. Resveratrol (RSV) and N-acetylcysteine (NAC) are safe representatives of natural and synthetic antioxidants, respectively. OBJECTIVE: The objective of this study was to evaluate protective effects of RSV and NAC, compared with ursodeoxycholic acid (UDCA), on experimental NAFLD. MATERIALS AND METHODS: NAFLD was induced by feeding rats a methionine choline-deficient diet (MCDD) for four cycles, each of 4 d of MCDD feeding and 3 d of fasting...
July 2016: Pharmaceutical Biology
Licia Polimeni, Maria Del Ben, Francesco Baratta, Ludovica Perri, Fabiana Albanese, Daniele Pastori, Francesco Violi, Francesco Angelico
Non-alcoholic fatty liver disease (NAFLD) represents the most common and emerging chronic liver disease worldwide. It includes a wide spectrum of liver diseases ranging from simple fatty liver to non-alcoholic steatohepatitis (NASH), which may progress to fibrosis and more severe liver complications such as cirrhosis, hepatocellular carcinoma and liver mortality. NAFLD is strongly associated with obesity, insulin resistance, hypertension, and dyslipidaemia, and is now regarded as the liver manifestation of the metabolic syndrome...
June 8, 2015: World Journal of Hepatology
Yong Zhang, Ming-liang Chen, Yong Zhou, Long Yi, Yan-xiang Gao, Li Ran, Shi-hui Chen, Ting Zhang, Xi Zhou, Dan Zou, Bin Wu, Ying Wu, Hui Chang, Jun-dong Zhu, Qian-yong Zhang, Man-tian Mi
SCOPE: Resveratrol (RSV), a natural polyphenol, has been reported to attenuate nonalcoholic fatty liver disease (NAFLD); however, its underlying mechanism is unclear. Autophagy was recently identified as a critical protective mechanism during NAFLD development. Therefore, we investigated the role of autophagy in the beneficial effects of RSV on hepatic steatosis. METHODS AND RESULTS: Via Oil red O staining, triglyceride, and β-hydroxybutyrate detection, we found that RSV decreased palmitate-induced lipid accumulation and stimulated fatty acid β-oxidation in hepatocytes...
August 2015: Molecular Nutrition & Food Research
Colette N Miller, Jeong-Yeh Yang, Tucker Avra, Suresh Ambati, Mary Anne Della-Fera, Srujana Rayalam, Clifton A Baile
OBJECTIVE: Menopausal reduction in estrogen causes increased adipose accumulation, leading many to turn to dietary supplements to prevent and treat such changes. Enhanced adipose mobilization stimulated by some supplements can increase the risk of non-alcoholic fatty liver disease (NAFLD). Cytoprotective and anti-obesity compounds may prevent the lipotoxicity associated with mobilization. METHODS: A phytochemical blend was tested in aged, ovariectomized rats. Rats were given the AIN-93M basal diet or a diet containing varying doses of phytochemicals with 2...
January 2015: Obesity
Forouzan Faghihzadeh, Peyman Adibi, Rahmatollah Rafiei, Azita Hekmatdoost
Nonalcoholic fatty liver disease (NAFLD) is the most common chronic liver disease in the world. Resveratrol is a polyphenolic compound with antioxidant capacity that shows beneficial effects on down-regulation of inflammatory mediators and metabolic disorders. We hypothesized that supplementation with resveratrol can further improve the efficacy of lifestyle modifications in the management of NAFLD. In this randomized, double-blinded, controlled clinical trial, 50 NAFLD patients were supplemented with either a 500-mg resveratrol capsule or a placebo capsule for 12 weeks...
October 2014: Nutrition Research
João Marcus Oliveira Andrade, Alanna Fernandes Paraíso, Marcos Vinícius Macedo de Oliveira, Andréa Maria Eleutério Martins, João Felício Neto, André Luiz Sena Guimarães, Alfredo Maurício de Paula, Mahboob Qureshi, Sérgio Henrique Sousa Santos
OBJECTIVE: Resveratrol (RSV) is the most studied natural compound that activates sirtuins, which produce beneficial metabolic effects on lipid and glucose metabolism. The aim of the present study was to investigate the role of resveratrol in preventing nonalcoholic fatty liver disease (NAFLD) and expression of liver inflammatory markers in mice treated with a high-fat diet. METHODS AND PROCEDURES: Eighteen male mice were divided into three groups and fed for 60 d with a standard diet (ST), high-fat diet (HFD), or high-fat diet plus resveratrol (HFD + RSV, 30 mg/kg/d)...
July 2014: Nutrition
Sara Heebøll, Karen Louise Thomsen, Steen B Pedersen, Hendrik Vilstrup, Jacob George, Henning Grønbæk
The prevalence of obesity and related conditions like non-alcoholic fatty liver disease (NAFLD) is increasing worldwide and therapeutic options are limited. Alternative treatment options are therefore intensively sought after. An interesting candidate is the natural polyphenol resveratrol (RSV) that activates adenosinmonophosphate-activated protein kinase (AMPK) and silent information regulation-2 homolog 1 (SIRT1). In addition, RSV has known anti-oxidant and anti-inflammatory effects. Here, we review the current evidence for RSV-mediated effects on NAFLD and address the different aspects of NAFLD and non-alcoholic steatohepatitis (NASH) pathogenesis with respect to free fatty acid (FFA) flux from adipose tissue, hepatic de novo lipogenesis, inadequate FFA β-oxidation and additional intra- and extrahepatic inflammatory and oxidant hits...
April 27, 2014: World Journal of Hepatology
Jia Xiao, Kwok Fai So, Emily C Liong, George L Tipoe
Non-alcoholic fatty liver disease (NAFLD) is one of the leading causes of chronic liver injury across the world. It is also strongly related to other pathological conditions, including obesity, diabetes, cardiovascular diseases, and symptoms of metabolic syndrome. Pathogenesis of NAFLD remains not fully characterized but is generally attributed to the occurrence of insulin resistance, lipid metabolism dysfunction,0 oxidative stress, inflammation, and necro-apoptosis. Every potential therapeutic strategy should target one or some of these pathological events in the liver...
April 2013: Journal of Traditional and Complementary Medicine
Veronique S Chachay, Graeme A Macdonald, Jennifer H Martin, Jonathan P Whitehead, Trisha M O'Moore-Sullivan, Paul Lee, Michael Franklin, Kerenaftali Klein, Paul J Taylor, Maree Ferguson, Jeff S Coombes, Gethin P Thomas, Gary J Cowin, Carl M J Kirkpatrick, Johannes B Prins, Ingrid J Hickman
BACKGROUND & AIMS: Nonalcoholic fatty liver disease (NAFLD), characterized by accumulation of hepatic triglycerides (steatosis), is associated with abdominal obesity, insulin resistance, and inflammation. Although weight loss via calorie restriction reduces features of NAFLD, there is no pharmacologic therapy. Resveratrol is a polyphenol that prevents high-energy diet-induced steatosis and insulin resistance in animals by up-regulating pathways that regulate energy metabolism. We performed a placebo-controlled trial to assess the effects of resveratrol in patients with NAFLD...
December 2014: Clinical Gastroenterology and Hepatology
Min-Hsiung Pan, Ching-Shu Lai, Mei-Ling Tsai, Chi-Tang Ho
Nonalcoholic fatty liver disease (NAFLD) refers to a wide spectrum of liver disease that is not from excess alcohol consumption, but is often associated with obesity, type 2 diabetes, and metabolic syndrome. NAFLD pathogenesis is complicated and involves oxidative stress, lipotoxicity, mitochondrial damage, insulin resistance, inflammation, and excessive dietary fat intake, which increase hepatic lipid influx and de novo lipogenesis and impair insulin signaling, thus promoting hepatic triglyceride accumulation and ultimately NAFLD...
January 2014: Molecular Nutrition & Food Research
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