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https://www.readbyqxmd.com/read/28324238/kinetics-of-expression-of-genes-involved-in-glucose-metabolism-after-the-last-meal-in-overfed-mule-ducks
#1
Tavernier Annabelle, Ricaud Karine, Bernadet Marie-Dominique, Davail Stéphane, Gontier Karine
In waterfowls, overfeeding leads to a hepatic steatosis, also called "foie gras." We decided to investigate the role of glucose metabolism in steatosis emergence. For this, we measured the expression of genes during the 12 h following the last meal of the overfeeding period. As expected, it showed that the expression of glucose transporter is more precocious in jejunal mucosa, especially for SGLT1, known to be the major transporter at the apical surface. In the liver, GLUT2 and HK1 are upregulated at the same time and seem to work together to import glucose...
March 21, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28319895/impact-of-high-cholesterol-and-endoplasmic-reticulum-stress-on-metabolic-diseases-an-updated-mini-review
#2
REVIEW
Erdi Sozen, Nesrin Kartal Ozer
Endoplasmic reticulum (ER) is the major site of protein folding and calcium storage. Beside the role of ER in protein homeostasis, it controls the cholesterol production and lipid-membrane biosynthesis as well as surviving and cell death signaling mechanisms in the cell. It is well-documented that elevated plasma cholesterol induces adverse effects in cardiovascular diseases (CVDs), liver disorders, such as non-alcoholic fatty liver disease (NAFLD), non-alcoholic steatosis hepatitis (NASH), and metabolic diseases which are associated with oxidative and ER stress...
March 6, 2017: Redox Biology
https://www.readbyqxmd.com/read/28319602/low-hepatic-tissue-copper-in-pediatric-non-alcoholic-fatty-liver-disease
#3
Michael Mendoza, Shelley Caltharp, Ming Song, Lindsay Collin, Juna V Konomi, Craig J McClain, Miriam B Vos
OBJECTIVE: Animal models and studies in adults have demonstrated that copper restriction increases severity of liver injury in non-alcoholic fatty liver disease (NAFLD). This has not been studied in children. We aimed to determine if lower tissue copper is associated with increased NAFLD severity in children. METHODS: This was a retrospective study of pediatric patients who had a liver biopsy including a hepatic copper quantitation. The primary outcome compared hepatic copper concentration in NAFLD versus non-NAFLD...
March 17, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28317281/comparison-of-dietary-polyphenols-for-protection-against-molecular-mechanisms-underlying-non-alcoholic-fatty-liver-disease-in-a-cell-model-of-steatosis
#4
Hossein Rafiei, Kosar Omidian, Brian Bandy
SCOPE: Dietary polyphenols have shown promise in protecting the liver against non-alcoholic fatty liver disease. The relative effectiveness and mechanisms of different polyphenols however is mostly unknown. METHODS AND RESULTS: In a model of steatosis using HepG2 hepatocytes, we evaluated the protective effects of different classes of polyphenols and the contributing mechanisms. Treatment of the cells with oleic acid increased ROS generation and expression of TNFα, decreased expression of UCP2 and decreased mitochondrial content and markers of biogenesis...
March 20, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28315617/dietary-fructose-augments-ethanol-induced-liver-pathology
#5
Paul G Thomes, Jennifer H Benbow, Elizabeth Brandon-Warner, Kyle J Thompson, Carl Jacobs, Terrence M Donohue, Laura W Schrum
Certain dietary components when combined with alcohol exacerbate alcohol-induced liver injury (ALI). Here, we tested whether fructose, a major ingredient of the western diet, enhances the severity of ALI. We fed mice ethanol for 8 weeks in the following Lieber-DeCarli diets: (a) Regular (contains olive oil); (b) corn oil (contains corn oil); (c) fructose (contains fructose and olive oil) and (d) corn+fructose (contains fructose and corn oil). We compared indices of metabolic function and liver pathology among the different groups...
March 6, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28314735/non-alcoholic-fatty-liver-disease-and-its-relationship-with-cardiovascular-disease-and-other-extrahepatic-diseases
#6
REVIEW
Leon A Adams, Quentin M Anstee, Herbert Tilg, Giovanni Targher
Key physiological functions of the liver, including glucose and lipid metabolism, become disturbed in the setting of non-alcoholic fatty liver disease (NAFLD) and may be associated with a systemic inflammatory 'milieu' initiated in part by liver-secreted cytokines and molecules. Consequently, the pathophysiological effects of NAFLD extend beyond the liver with a large body of clinical evidence demonstrating NAFLD to be independently associated with both prevalent and incident cardiovascular disease (CVD), chronic kidney disease (CKD) and type 2 diabetes mellitus (T2DM)...
March 17, 2017: Gut
https://www.readbyqxmd.com/read/28303974/antifibrotic-effect-of-pirfenidone-in-a-mouse-model-of-human-nonalcoholic-steatohepatitis
#7
Chikara Komiya, Miyako Tanaka, Kyoichiro Tsuchiya, Noriko Shimazu, Kentaro Mori, Shunsaku Furuke, Yasutaka Miyachi, Kumiko Shiba, Shinobu Yamaguchi, Kenji Ikeda, Kozue Ochi, Kazuhiko Nakabayashi, Ken-Ichiro Hata, Michiko Itoh, Takayoshi Suganami, Yoshihiro Ogawa
Non-alcoholic steatohepatitis (NASH) is characterized by steatosis with lobular inflammation and hepatocyte injury. Pirfenidone (PFD) is an orally bioavailable pyridone derivative that has been clinically used for the treatment of idiopathic pulmonary fibrosis. However, it remains unknown whether PFD improves liver fibrosis in a mouse model with human NASH-like phenotypes. In this study, we employed melanocortin 4 receptor-deficient (MC4R-KO) mice as a mouse model with human NASH-like phenotypes to elucidate the effect and action mechanisms of PFD on the development of NASH...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28303724/non-alcoholic-fatty-liver-disease-nafld-pathogenesis-classification-and-effect-on-drug-metabolizing-enzymes-and-transporters
#8
Enoch Cobbina, Fatemeh Akhlaghi
Non-alcoholic fatty liver disease (NAFLD) is a spectrum of liver disorders. It is defined by the presence of steatosis in more than 5% of hepatocytes with little or no alcohol consumption. Insulin resistance, the metabolic syndrome or type 2 diabetes and genetic variants of PNPLA3 or TM6SF2 seem to play a role in the pathogenesis of NAFLD. The pathological progression of NAFLD follows tentatively a "three-hit" process namely steatosis, lipotoxicity and inflammation. The presence of steatosis, oxidative stress and inflammatory mediators like TNF-α and IL-6 has been implicated in the alterations of nuclear factors such as CAR, PXR, PPAR-α in NAFLD...
March 17, 2017: Drug Metabolism Reviews
https://www.readbyqxmd.com/read/28301372/news-on-the-molecular-regulation-and-function-of-hepatic-low-density-lipoprotein-receptor-and-ldlr-related-protein-1
#9
Bart van de Sluis, Melinde Wijers, Joachim Herz
PURPOSE OF REVIEW: Clearing of atherogenic lipoprotein particles by the liver requires hepatic low-density lipoprotein receptor (LDLR) and LDLR-related protein 1 (LRP1). This review highlights recent studies that have expanded our understanding of the molecular regulation and metabolic functions of LDLR and LRP1 in the liver. RECENT FINDINGS: Various proteins orchestrate the intracellular trafficking of LDLR and LRP1. After internalization, the receptors are redirected via recycling endosomes to the cell surface...
March 15, 2017: Current Opinion in Lipidology
https://www.readbyqxmd.com/read/28300557/high-fat-diet-aggravates-2-2-4-4-tetrabromodiphenyl-ether-inhibited-testosterone-production-via-dax-1-in-leydig-cells-in-rats
#10
Zhan Zhang, Yongquan Yu, Hengsen Xu, Chao Wang, Minghui Ji, Jun Gu, Lu Yang, Jiansheng Zhu, Huibin Dong, Shou-Lin Wang
Growing evidence has revealed that a high-fat diet (HFD) could lead to disorders of glycolipid metabolism and insulin-resistant states, and HFDs have been associated with the inhibition of testicular steroidogenesis. Our previous study demonstrated that 2,2',4,4'-tetrabromodiphenyl ether (BDE47) could increase the risk of diabetes in humans and reduce testosterone production in rats. However, whether the HFD affects BDE47-inhibited testosterone production by elevating insulin levels and inducing related pathways remains unknown...
March 11, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28300221/beneficial-effects-of-paeoniflorin-on-non-alcoholic-fatty-liver-disease-induced-by-high-fat-diet-in-rats
#11
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
#12
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
#13
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/28299359/aifm1-mutation-presenting-with-fatal-encephalomyopathy-and-mitochondrial-disease-in-an-infant
#14
Sarah U Morton, Sanjay P Prabhu, Hart G W Lidov, Jiahai Shi, Irina Anselm, Catherine A Brownstein, Matthew N Bainbridge, Alan H Beggs, Sara O Vargas, Pankaj B Agrawal
Apoptosis-inducing factor mitochondrion-associated 1 (AIFM1), encoded by the gene AIFM1, has roles in electron transport, apoptosis, ferredoxin metabolism, reactive oxygen species generation, and immune system regulation. Here we describe a patient with a novel AIFM1 variant presenting unusually early in life with mitochondrial disease, rapid deterioration, and death. Autopsy, at the age of 4 mo, revealed features of mitochondrial encephalopathy, myopathy, and involvement of peripheral nerves with axonal degeneration...
March 2017: Cold Spring Harbor Molecular Case Studies
https://www.readbyqxmd.com/read/28298542/lipid-emulsion-added-to-a-liquid-high-carbohydrate-diet-and-voluntary-running-exercise-reduce-lipogenesis-and-ameliorate-early-stage-hepatic-steatosis-in-mice
#15
Kuan-Hsun Huang, Lei Hao, Philip B Smith, Connie J Rogers, Andrew D Patterson, A Catharine Ross
Background: The use of parenteral nutrition formulas is often associated with the development of hepatic steatosis. We have shown previously that the addition of a lipid emulsion (LE) rich in n-6 (ω-6) fatty acids (FAs) ameliorated triglyceride (TG) accumulation in the livers of nonobese mice fed a high-carbohydrate diet (HCD) for 5 wk. However, it remains unclear how rapidly this condition develops and whether it can be prevented by LE with or without a running wheel for voluntary exercise (Exe).Objective: We investigated in an 8-d study whether mice develop steatosis and whether the administration of LE with or without Exe reduces the concentration of total FAs and prevents an increase in the expression of genes in the liver associated with lipogenesis...
March 15, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28298541/rosa-mosqueta-oil-prevents-oxidative-stress-and-inflammation-through-the-upregulation-of-ppar-%C3%AE-and-nrf2-in-c57bl-6j-mice-fed-a-high-fat-diet
#16
Daniel González-Mañán, Amanda D'Espessailles, Camila G Dossi, Marcela San Martín, Rodrigo A Mancilla, Gladys S Tapia
Background: Rosa mosqueta (RM) oil is characterized by high concentrations of antioxidants and α-linolenic acid (ALA; 18:3n-3). We have previously demonstrated in male C57BL/6J mice that RM decreases hepatic steatosis, a condition strongly associated with oxidative stress and inflammation.Objective: We studied the molecular mechanisms that underlie the role of RM in preventing high-fat diet (HFD)-induced oxidative stress and inflammation.Methods: Male C57BL/6J mice aged 28 d and weighing 12-14 g were divided into the following groups and fed for 12 wk: control diet (CD; 10% fat, 20% protein, and 70% carbohydrates); CD + RM (1...
March 15, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28298270/nutritional-approaches-to-achieve-weight-loss-in-nonalcoholic-fatty-liver-disease
#17
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/28297801/-effect-of-curcumin-on-intestinal-mucosal-mechanical-barrier-in-rats-with-non-alcoholic-fatty-liver-disease
#18
H T Hou, Y M Qiu, H W Zhao, D H Li, Y T Liu, Y Z Wang, S H Su
Objective: To investigate the effect of curcumin on intestinal mucosal mechanical barrier in rats with non-alcoholic fatty liver disease. Methods: A total of 30 male Sprague-Dawley rats were equally divided into normal control group, model group, and curcumin intervention group. The rats in the model group and the curcumin intervention group were given high-fat feed for 16 weeks, and those in the curcumin intervention group were given curcumin 200 mg/kg/day by gavage once a day after 8 weeks of high-fat feeding...
February 20, 2017: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/28296807/long-term-outcomes-in-patients-undergoing-liver-transplantation-for-nonalcoholic-steatohepatitis-related-cirrhosis
#19
Chandra Bhati, Michael O Idowu, Arun J Sanyal, Maria Rivera, Carolyn Driscoll, Richard Todd Stravitz, Divyanshoo R Kohli, Scott Matherly, Puneet Puri, HoChong Giles, Adrian Cotterrell, Marlon Levy, Richard Sterling, Velimir Luketic, Hannah Lee, Amit Sharma, Mohammad Shadab Siddiqui
BACKGROUND: Nonalcoholic steatohepatitis (NASH), a clinically aggressive variant of nonalcoholic fatty liver disease (NAFLD), is becoming an increasingly common indication for liver transplantation (LT); however, relatively little is known regardings its clinical course post-LT. The aim of the current study is to describe disease recurrence and clinical course after LT. METHODS: All surviving patients transplanted for NASH at the authors' institution had transient elastography (TE) to evaluate hepatic steatosis and fibrosis...
March 15, 2017: Transplantation
https://www.readbyqxmd.com/read/28296592/ethanol-extract-of-capsella-bursa-pastoris-improves-hepatic-steatosis-through-inhibition-of-histone-acetyltransferase-activity
#20
Hyo-Kyoung Choi, Eun Ju Shin, Su Jin Park, Haeng Jeon Hur, Jae Ho Park, Min-Yu Chung, Myung Sunny Kim, Jin-Taek Hwang
Histone lysine acetylation is thought to play a role in regulating the balance between energy storage and energy expenditure. However, the epigenetic mechanisms by which food phytochemicals influence metabolic processes in the liver have not been thoroughly investigated. In this study, we investigated the effect of an ethanol extract of Capsella bursa-pastoris (ECB) on histone acetyltransferase (HAT) inhibition, and whether it could thereby attenuate lipid accumulation in vitro and in vivo. We observed that ECB inhibits HAT activity as assessed by colorimetric and autoradiography assay systems...
March 2017: Journal of Medicinal Food
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