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Nonalcoholic fatty liver disease

Alessandro Mantovani, Lucia Mingolla, Riccardo Rigolon, Isabella Pichiri, Valentina Cavalieri, Giacomo Zoppini, Giuseppe Lippi, Enzo Bonora, Giovanni Targher
BACKGROUND: Recent studies suggested that nonalcoholic fatty liver disease (NAFLD) is associated with an increased prevalence of cardiovascular disease (CVD) in type 1 diabetes. We assessed whether NAFLD also predicts the risk of incident CVD events in type 1 diabetic adults. METHODS: We studied a retrospective cohort of 286 type 1 diabetic outpatients (mean age 43±14years; median duration of diabetes 17 [10-30] years) without secondary causes of chronic liver diseases, who were followed for a mean period of 5...
October 17, 2016: International Journal of Cardiology
Kaitlin Mock, Sundus Lateef, Vagner A Benedito, Janet C Tou
High-fructose corn syrup-55 (HFCS-55) has been suggested to be more lipogenic than sucrose, which increases the risk for nonalcoholic fatty liver disease (NAFLD) and dyslipidemia. The study objectives were to determine the effects of drinking different sugar-sweetened solutions on hepatic gene expression in relation to liver fatty acid composition and risk of NAFLD. Female rats were randomly assigned (n=7 rats/group) to drink water or water sweetened with 13% (w/v) HFCS-55, sucrose or fructose for 8 weeks. Rats drinking HFCS-55 solution had the highest (P=...
September 30, 2016: Journal of Nutritional Biochemistry
Marlies Bekaert, D Margriet Ouwens, Tina Hörbelt, Frederique Van de Velde, Pia Fahlbusch, Daniella Herzfeld de Wiza, Yves Van Nieuwenhove, Patrick Calders, Marleen Praet, Anne Hoorens, Anja Geerts, Xavier Verhelst, Jean-Marc Kaufman, Bruno Lapauw
OBJECTIVE: This study aimed to evaluate whether circulating levels and/or visceral adipose tissue (VAT) expression of recently described adipokines associate with histopathological severity of nonalcoholic fatty liver disease (NAFLD), independent of obesity and insulin resistance. METHODS: Serum levels of adiponectin, omentin, chemerin, monocyte chemoattractant protein-1, and secreted frizzled-related protein 4 were measured using enzyme-linked immunosorbent assay in 81 patients with obesity and NAFLD and 18 lean control subjects...
October 21, 2016: Obesity
Zi Lin, Zheng-Feng Wu, Cui-Hua Jiang, Qing-Wen Zhang, Sheng Ouyang, Chun-Tao Che, Jian Zhang, Zhi-Qi Yin
BACKGROUND: Hepatic steatosis (HS) is the early stage of nonalcoholic fatty liver disease which is caused by impaired hepatic lipid homeostasis. Cyclocarya paliurus, an herbal tea consumed in China, has been demonstrated to ameliorate abnormal lipid metabolism for the treatment of metabolic diseases. PURPOSE: We aimed to investigate the regulative effect of chloroform extract from Cyclocarya paliurus (ChE) on treatment of HS, as well as key factors involved in hepatic lipid metabolism...
November 15, 2016: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
Su Jin Lee, Jeong Han Kang, Da Eun Lee, Min Jeong Nam, Hyun-Shik Lee, Oh-Shin Kwon
Chronic alcohol consumption causes hepatic steatosis, which is characterized by a considerable increase in free fatty acid (FFA) and triglyceride levels. To identify the possible proteins involved in the progression to alcoholic hepatosteatosis, we performed proteomic analysis on livers of mice exposed to alcohol. 2D-based proteomic analysis revealed that EtOH exposure in mice changed the expression of 43 proteins compared with that in mice fed a normal diet (ND). The most notable protein changes were proteins involved in Met metabolism and oxidative stress, most of which were significantly downregulated in alcohol-exposed animals...
October 20, 2016: Journal of Cellular Biochemistry
Ryan D Sheldon, Kayla M Kanosky, Kevin D Wells, Lili Miles, James W Perfield, Stavra Xanthakos, Thomas H Inge, R Scott Rector
BACKGROUND: Mechanisms responsible for progression of nonalcoholic fatty liver disease (NAFLD) to steatohepatitis (NASH) remain poorly defined. METHODS: To examine the potential contribution of adipose tissue to NAFLD progression, we performed a complete transcriptomic analysis using RNA-sequencing (RNA-seq) on intra-abdominal adipose tissue (IAT) from severely obese adolescents (Mage 16.9±0.4 yrs; BMI z-score 2.7±0.1) undergoing bariatric surgery and liver biopsy categorized into 3 groups; No steatosis (Normal, n=8), steatosis only (n=13), or NASH (n=10) by liver histology...
October 7, 2016: Physiological Genomics
Bonglee Kim, Moon-Jea Woo, Chul-Soo Park, Sang-Hun Lee, Jin-Soo Kim, Boim Kim, Seho An, Sung-Hoon Kim
Hovenia dulcis Thunb. (HDT) was known to have anti-fatigue, anti-diabetes, neuroprotective, and hepatoprotective effects. In the present study, the anti-fatty liver mechanism of HDT was elucidated in oleic acid (OA)-treated Hep G2 cells and acute hyperlipidemia mouse model using Triton WR-1339. Here, HDT activated p-AMP-activated protein kinase (p-AMPK), proliferator activated receptor-α, carnitine palmitoyltransferase and also inhibited the expression of lipogenesis and cholesterol synthesis proteins, such as 3-hydroxy-3-methylglutaryl-CoA reductase, sterol regulatory element binding protein-1c, SREBP-2, and fatty acid synthase in OA-treated Hep G2 cells...
October 20, 2016: Phytotherapy Research: PTR
Hui-Jie Zhang, Ling-Ling Pan, Zhi-Min Ma, Zheng Chen, Zhu-Feng Huang, Qian Sun, Yan Lu, Cheng-Kun Han, Ming-Zhu Lin, Xue-Jun Li, Shu-Yu Yang, Xiao-Ying Li
Exercise training can reduce hepatic fat accumulation and cardiovascular risk among patients with nonalcoholic fatty liver disease (NAFLD), but how long these benefits extend beyond the period of active intervention is unclear. Intrahepatic triglyceride (IHTG) content measured by proton magnetic resonance spectroscopy, and metabolic risk factors were assessed among 220 obese subjects with NAFLD who were randomly assigned to vigorous-moderate exercise, moderate exercise, or control over the subsequent 1 year after 12-month exercise intervention...
October 19, 2016: Diabetes, Obesity & Metabolism
Yong Xie, Yi Zhang, Zebin Guo, Hongliang Zeng, Baodong Zheng
This study aimed to investigate the effects of total alkaloids from Nelumbinis Plumula (NPA) on insulin resistance (IR) of high-fat diet- (HFD-) induced nonalcoholic fatty liver disease (NAFLD). Rats were fed with HFD for 8 weeks to induce NAFLD. Then, the effect of NPA on ameliorating IR in HFD-induced NAFLD was evaluated. Fasting serum insulin was determined using an enzyme-linked immunosorbent assay (ELISA) kit for insulin following the manufacturer's protocol. Some inflammatory cytokines such as tumor necrosis factor alpha (TNF-α) and interleukin-6 (IL-6) were determined using ELISA kits to assess the inflammatory burden in rats...
2016: Journal of Diabetes Research
Shahab-Aldin Akbarian, Sedigheh Asgary, Awat Feizi, Bijan Iraj, Gholamreza Askari
BACKGROUND: Due to the attribution of fatty liver with some chronic diseases such as obesity, finding a way to control obesity can be useful for the management of fatty liver. This study was performed to assess the effects of Plantago psyllium (PP) and Ocimum basilicum (OB) on anthropometric measurements in people with hepatic steatosis. METHODS: All patients with nonalcoholic fatty liver disease (NAFLD) were enrolled in this four-arm parallel, randomized, and single blind trial...
2016: International Journal of Preventive Medicine
Da Zhou, Bing-Hang Li, Jing Wang, Yong-Nian Ding, Yan Dong, Yuan-Wen Chen, Jian-Gao Fan
BACKGROUND: Prolyl oligopeptidase (POP) is a serine endopeptidase that is widely distributed in vivo, particularly in the liver. Significant changes in functional mitochondrial proteins involved with mitochondrial oxidoreductases/transporters and nucleic acid binding proteins were observed after POP inhibition in the liver, which suggested a role of POP in regulating liver energy metabolism. Steatosis in nonalcoholic fatty liver disease (NAFLD) is associated with disturbances in lipid and energy metabolism in hepatocytes...
2016: PloS One
Max C Petersen, Anila K Madiraju, Brandon M Gassaway, Michael Marcel, Ali R Nasiri, Gina Butrico, Melissa J Marcucci, Dongyan Zhang, Abudukadier Abulizi, Xian-Man Zhang, William Philbrick, Stevan R Hubbard, Michael J Jurczak, Varman T Samuel, Jesse Rinehart, Gerald I Shulman
Nonalcoholic fatty liver disease (NAFLD) is a risk factor for type 2 diabetes (T2D), but whether NAFLD plays a causal role in the pathogenesis of T2D is uncertain. One proposed mechanism linking NAFLD to hepatic insulin resistance involves diacylglycerol-mediated (DAG-mediated) activation of protein kinase C-ε (PKCε) and the consequent inhibition of insulin receptor (INSR) kinase activity. However, the molecular mechanism underlying PKCε inhibition of INSR kinase activity is unknown. Here, we used mass spectrometry to identify the phosphorylation site Thr1160 as a PKCε substrate in the functionally critical INSR kinase activation loop...
October 17, 2016: Journal of Clinical Investigation
Gang Chen, Dongsheng Yu, Xue Nian, Junyi Liu, Ronald J Koenig, Bin Xu, Liang Sheng
Nonalcoholic fatty liver disease (NAFLD), the most common form of chronic liver disease, manifests as an over-accumulation of hepatic fat. We have recently shown that mice with genetic knockout of a long non-coding RNA (lncRNA) steroid receptor RNA activator (SRA) (SRAKO) are resistant to high fat diet-induced obesity with a phenotype that includes improved glucose tolerance and attenuated hepatic steatosis. The underlying mechanism was investigated in the present study. We found that hepatic levels of SRA and adipose triglyceride lipase (ATGL), a major hepatic triacylglycerol (TAG) hydrolase, were inversely regulated by fasting in mice, and the expression of liver ATGL was induced by SRAKO under normal and high fat diet (HFD) feeding...
October 19, 2016: Scientific Reports
Ran Ao, Ying Wang, Jing Tong, Bai-Fang Wang
BACKGROUND MicroRNA-9 (miR-9) was detected in nonalcoholic fatty liver disease (NAFLD) patients to understand the role of miR-9 in NAFLD development. MATERIAL AND METHODS Between February 2014 and February 2015, 105 cases of NAFLD were recruited and confirmed by liver biopsy pathology, including patients with mild NAFLD (n=58) and moderate-severe NAFLD (n=47); nonalcoholic steatohepatitis (NASH) (n=53) and non-NASH (n=52); and 50 healthy participants were regarded as the healthy control group. MiR-9 expression was measured by qRT-PCR...
October 19, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
S Di Mauro, M Ragusa, F Urbano, A Filippello, A Di Pino, A Scamporrino, A Pulvirenti, A Ferro, A M Rabuazzo, M Purrello, F Purrello, S Piro
BACKGROUND & AIMS: Nonalcoholic fatty liver disease (NAFLD) represents the most common chronic liver disease in industrialized countries. NAFLD has the potential to progress through the inflammatory phase of nonalcoholic steatohepatitis (NASH) to fibrosis, cirrhosis, and hepatocellular carcinoma. Identifying patients at risk for this transition is a relevant clinical challenge. The complexity of these phenotypes in vivo made necessary the development of in vitro models in order to dissect the molecular signalling affected in NAFLD and NASH, but also to identify potential circulating biomarkers...
August 20, 2016: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
Xiaopeng Zhu, Hua Bian, Xin Gao
Nonalcoholic fatty liver disease (NAFLD) is a globally observed metabolic disease with high prevalence both in adults and children. However, there is no efficient medication available yet. Increased evidence indicates that berberine (BBR), a natural plant product, has beneficial effects on NAFLD, though the mechanisms are not completely known. In this review, we briefly summarize the pathogenesis of NAFLD and factors that influence the progression of NAFLD, and focus on the potential mechanisms of BBR in the treatment of NAFLD...
October 14, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Kojiro Seki, Toshihide Shima, Hirohisa Oya, Yasuhide Mitsumoto, Masayuki Mizuno, Takeshi Okanoue
AIM: Transient elastography (TE) is a noninvasive method for predicting liver fibrosis. However, there is limited data regarding the performance of TE in Japanese patients with nonalcoholic fatty liver disease (NAFLD). We aimed to evaluate the association between liver stiffness measurement (LSM) by TE and liver fibrosis stage, and define a cut-off value for predicting liver fibrosis. METHODS: A total of 171 Japanese patients with biopsy-proven NAFLD underwent LSM using TE with FibroScan®...
October 18, 2016: Hepatology Research: the Official Journal of the Japan Society of Hepatology
V Nobili, S Cucchiara
No abstract text is available yet for this article.
October 4, 2016: Journal of Pediatric Gastroenterology and Nutrition
Narges Amel Zabihi, Matteo Pirro, Thomas P Johnston, Amirhossein Sahebkar
Nonalcoholic fatty liver disease (NAFLD) is the most common type of liver disease. NAFLD is considered a multifactorial disease and a clinically relevant hepatic manifestation of metabolic syndrome. NAFLD is often accompanied by a constellation of metabolic and non-metabolic alterations, like dyslipidemia, insulin resistance in the liver and peripheral tissues, inflammation and oxidative stress; therefore, treatment of NAFLD should be directed at correcting all of these disturbances. The natural polyphenol curcumin has been the subject of increasing research for the treatment of NAFLD due to its lipid-modifying, antioxidant, anti-inflammatory, insulin-sensitizing, anti-steatotic, and anti-fibrotic properties...
October 10, 2016: Current Pharmaceutical Design
Yun-Ho Hwang, Kyung-Yun Kang, Jong-Jin Kim, Sung-Ju Lee, Young-Jin Son, Soo-Heui Paik, Sung-Tae Yee
Polygonum multiflorum (PM), a traditional Chinese medicine, is used to treat various diseases including nonalcoholic fatty liver disease and hyperlipidemia. However, the influence of PM on osteoporosis in animals is unclear. The present study investigated the antiosteoporotic effect of PM on bone mass in ovariectomized (OVX) mice and its possible mechanism of action. Twenty-five female C3H/HeN mice were divided into five groups of five mice as follows. Sham-operated control mice received daily oral gavage of an equal volume of water, and OVX mice received daily oral gavage of water or an injection of β-estradiol or PM for 6 weeks...
2016: Evidence-based Complementary and Alternative Medicine: ECAM
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