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Non alcoholic fatty liver disease

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https://www.readbyqxmd.com/read/28324110/effects-of-metreleptin-in-pediatric-patients-with-lipodystrophy
#1
Rebecca J Brown, Cristina Adelia Meehan, Elaine Cochran, Kristina I Rother, David E Kleiner, Mary Walter, Phillip Gorden
Context: Lipodystrophy syndromes are rare disorders of deficient adipose tissue. Metreleptin, a human analog of leptin, improved metabolic abnormalities in mixed cohorts of leptin-deficient children and adults with lipodystrophy. Objective: Determine effects of metreleptin on diabetes, hyperlipidemia, non-alcoholic fatty liver disease (NAFLD), growth, and puberty in leptin-deficient pediatric patients with lipodystrophy. Design: Prospective, single-arm, open-label studies with continuous enrollment since 2000...
January 23, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28323986/chronic-intranasal-insulin-does-not-affect-hepatic-lipids-but-lowers-circulating-bcaas-in-healthy-male-subjects
#2
Thomas Scherer, Peter Wolf, Sabina Smajis, Melania Gaggini, Martina Hackl, Amalia Gastaldelli, Peter Klimek, Elisa Einwallner, Rodrig Marculescu, Anton Luger, Clemens Fürnsinn, Siegfried Trattnig, Christoph Buettner, Martin Krššák, Michael Krebs
Context: Non-alcoholic fatty liver disease and elevated circulating branched-chain amino acids (BCAAs) are common characteristics of obesity and type 2 diabetes. In rodents, brain insulin signaling controls both hepatic triglyceride secretion and BCAA catabolism. Whether brain insulin signaling controls similar metabolic pathways in humans is unknown. Objective: Here we assessed if intranasal insulin, a method to preferentially deliver insulin to the central nervous system, is able to modulate hepatic lipid content and plasma BCAAs in humans...
January 16, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28319895/impact-of-high-cholesterol-and-endoplasmic-reticulum-stress-on-metabolic-diseases-an-updated-mini-review
#3
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
#4
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/28319060/the-anti-diabetic-drug-exenatide-a-glucagon-like-peptide-1-receptor-agonist-counteracts-hepatocarcinogenesis-through-camp-pka-egfr-stat3-axis
#5
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/28318950/cholesteryl-ester-storage-disease-an-underdiagnosed-cause-of-cirrhosis-in-adults
#6
REVIEW
Mamta Pant, Kiyoko Oshima
Cholesteryl Ester Storage Disease (CESD), is a rare multisystem autosomal recessive disorder and belongs to the broad family of lysosomal storage disorders. It can present anytime from infancy and childhood to even adulthood. The clinical manifestations are generally severe in infants and with milder forms in adults. One of the prominent sites of involvement is liver. Due to low awareness of this condition among physicians including surgical pathologists, majority of the liver biopsies, especially from the adults are often misdiagnosed as non-alcoholic fatty liver disease/non-alcoholic steatohepatitis or cryptogenic cirrhosis...
February 9, 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28318912/less-liver-fibrosis-in-metabolically-healthy-compared-with-metabolically-unhealthy-obese-patients-with-non-alcoholic-fatty-liver-disease
#7
Y Gutiérrez-Grobe, E Juárez-Hernández, B A Sánchez-Jiménez, M H Uribe-Ramos, M H Ramos-Ostos, M Uribe, N C Chávez-Tapia
AIM: This cross-sectional study evaluated liver fibrosis in patients with non-alcoholic fatty liver disease (NAFLD), and compared the characteristics of metabolically healthy obese (MHO) with metabolically unhealthy obese (MUHO) patients. METHODS: The study was nested within a randomized clinical trial (RCT) and included obese patients with NAFLD, as determined by liver ultrasonography. Fibrosis was assessed by transient elastography, and AST-to-platelet ratio index (APRI) and NAFLD score...
March 16, 2017: Diabetes & Metabolism
https://www.readbyqxmd.com/read/28318371/p-selectin-endocan-and-some-adhesion-molecules-in-obese-children-and-adolescents-with-non-alcoholic-fatty-liver-disease
#8
Ala Ustyol, Esra Aycan Ustyol, Figen Gurdol, Funda Kokali, Seldag Bekpınar
There is increasing evidence for a direct relationship between the vascular system and non-alcoholic fatty liver disease (NAFLD). The aim of this study was to investigate endocan and adhesion molecules such as P-selectin derived from the endothelium and platelets in obese children and adolescents with NAFLD. One hundred obese patients and 40 lean controls were enrolled. The obese subjects were divided into two subgroups based on the presence or absence of fatty liver. Blood samples were assayed for endocan, P-selectin, platelet-derived growth factor (PDGF), intercellular cell adhesion molecule (ICAM)-1, and vascular cell adhesion molecule (VCAM)-1...
May 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28317891/hepatic-mitochondrial-dysfunction-is-a-feature-of-glycogen-storage-disease-type-ia-gsdia
#9
Benjamin L Farah, Rohit A Sinha, Yajun Wu, Brijesh K Singh, Andrea Lim, Masahiro Hirayama, Dustin J Landau, Boon Huat Bay, Dwight D Koeberl, Paul M Yen
Glycogen storage disease type Ia (GSDIa, von Gierke disease) is the most common glycogen storage disorder. It is caused by the deficiency of glucose-6-phosphatase, an enzyme which catalyses the final step of gluconeogenesis and glycogenolysis. Clinically, GSDIa is characterized by fasting hypoglycaemia and hepatic glycogen and triglyceride overaccumulation. The latter leads to steatohepatitis, cirrhosis, and the formation of hepatic adenomas and carcinomas. Currently, little is known about the function of various organelles and their impact on metabolism in GSDIa...
March 20, 2017: Scientific Reports
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
#10
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/28315901/the-effect-of-sitagliptin-on-lipid-metabolism-of-fatty-liver-mice-and-related-mechanisms
#11
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/28314735/non-alcoholic-fatty-liver-disease-and-its-relationship-with-cardiovascular-disease-and-other-extrahepatic-diseases
#12
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/28314211/the-role-of-kupffer-cells-in-hepatic-diseases
#13
REVIEW
Peizhi Li, Kun He, Jinzheng Li, Zuojin Liu, Jianping Gong
Kupffer cells (KCs) constitute 80-90% of the tissue macrophages present in the body. Essential to innate and adaptive immunity, KCs are responsible for the swift containment and clearance of exogenous particulates and immunoreactive materials which are perceived as foreign and harmful to the body. Similar to other macrophages, KCs also sense endogenous molecular signals that may result from perturbed homeostasis of the host. KCs have been implicated in host defense and the pathogenesis of various hepatic diseases, including endotoxin tolerance, liver transplantation, nonalcoholic fatty liver disease, and alcoholic liver disease...
March 14, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28303724/non-alcoholic-fatty-liver-disease-nafld-pathogenesis-classification-and-effect-on-drug-metabolizing-enzymes-and-transporters
#14
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/28300221/beneficial-effects-of-paeoniflorin-on-non-alcoholic-fatty-liver-disease-induced-by-high-fat-diet-in-rats
#15
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
#16
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/28299029/comments-on-prevalence-of-non-alcoholic-fatty-liver-disease-and-its-related-factors-in-iran
#17
H Karimi-Sari, S M Mousavi-Naeini, A Khonche
No abstract text is available yet for this article.
2017: International Journal of Organ Transplantation Medicine
https://www.readbyqxmd.com/read/28297806/-research-advances-in-the-pathogenesis-of-non-alcoholic-fatty-liver-disease-associated-liver-cancer
#18
W Huang, X X Zhang
Nonalcoholic fatty fiver disease (NAFLD) is one of the most common causes of chronic liver disease in clinical practice. It develops from simple fatty liver, nonalcoholic fatty hepatitis to liver fibrosis which may develop liver cirrhosis and result in hepatocellular carcinoma(HCC) eventually. Although studies show that many cell signaling pathways, genes and cell factors are involved in the progression and development of NAFLD related HCC, the exact mechanism underling the pathogenesis of NAFLD-HCC remains poorly understand...
February 20, 2017: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/28297801/-effect-of-curcumin-on-intestinal-mucosal-mechanical-barrier-in-rats-with-non-alcoholic-fatty-liver-disease
#19
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/28297799/-a-serum-lipidomic-study-of-patients-with-non-alcoholic-fatty-liver-disease
#20
R X Yang, C X Hu, Y Q Mi, W L Sun, G Y Chen, Q Pan, F Shen, G W Xu, J G Fan
Objective: To investigate the serum lipidomic profile in patients with nonalcoholic fatty liver disease (NAFLD), and to analyze the lipid metabolism characteristics of NAFLD. Methods: The subjects were divided into control group (23 patients) and pathologically confirmed NAFLD group (42 patients), and ultra-high-performance liquid chromatography-tandem mass spectrometry was used to measure serum lipidomic metabolites. The partial least squares-discriminant analysis (PLS-DA) model was established to analyze the differences in lipid metabolism with reference to the univariate analysis...
February 20, 2017: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
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