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Lipid and chronic hepatitis C

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https://www.readbyqxmd.com/read/29575057/adiponectin-synthesis-and-secretion-by-subcutaneous-adipose-tissue-is-impaired-during-obesity-by-endoplasmic-reticulum-stress
#1
Ivan Torre-Villalvazo, Ana E Bunt, Gabriela Alemán, Claudia C Marquez-Mota, Andrea Diaz-Villaseñor, Lilia G Noriega, Isabela Estrada, Elizabeth Figueroa-Juárez, Claudia Tovar-Palacio, Leonardo A Rodriguez-López, Patricia López-Romero, Nimbe Torres, Armando R Tovar
Subcutaneous (SAT) and visceral (VAT) adipose tissues stores excess energy as triglycerides and synthesize adiponectin to prevent ectopic lipid accumulation and lipotoxicity. During obesity, an impairment in the capacity of SAT to store triglycerides and synthesize adiponectin is associated with increased free fatty acids (FFA) release, leading to VAT hypertrophy and hepatic and skeletal muscle lipotoxicity. Endoplasmic reticulum (ER) stress and the unfolded protein response (UPR) may be involved in SAT dysfunction during obesity...
March 25, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29574072/recovery-of-lipid-metabolic-alterations-in-hepatitis-c-patients-after-viral-clearance-incomplete-restoration-with-accelerated-%C3%AF-oxidation
#2
Su-Wei Chang, Mei-Ling Cheng, Ming-Shi Shiao, Chau-Ting Yeh, Chao-Hung Wang, Chun-Ming Fan, Cheng-Tang Chiu, Ming-Ling Chang
BACKGROUND: How hepatitis C virus (HCV)-associated lipid metabolic alterations recover after sustained virological response (SVR) remains elusive. OBJECTIVE: The aforementioned recovery pattern was investigated. METHODS: In a prospective cohort study of 438 chronic hepatitis C (CHC) patients with SVR after anti-HCV therapy, 164 sex- and age-matched genotype I (G1) and G2 patients underwent paired-serum liquid chromatography-tandem mass spectrometry analyses before and 24 weeks after therapy...
March 2, 2018: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/29562163/a-protein-truncating-hsd17b13-variant-and-protection-from-chronic-liver-disease
#3
Noura S Abul-Husn, Xiping Cheng, Alexander H Li, Yurong Xin, Claudia Schurmann, Panayiotis Stevis, Yashu Liu, Julia Kozlitina, Stefan Stender, G Craig Wood, Ann N Stepanchick, Matthew D Still, Shane McCarthy, Colm O'Dushlaine, Jonathan S Packer, Suganthi Balasubramanian, Nehal Gosalia, David Esopi, Sun Y Kim, Semanti Mukherjee, Alexander E Lopez, Erin D Fuller, John Penn, Xin Chu, Jonathan Z Luo, Uyenlinh L Mirshahi, David J Carey, Christopher D Still, Michael D Feldman, Aeron Small, Scott M Damrauer, Daniel J Rader, Brian Zambrowicz, William Olson, Andrew J Murphy, Ingrid B Borecki, Alan R Shuldiner, Jeffrey G Reid, John D Overton, George D Yancopoulos, Helen H Hobbs, Jonathan C Cohen, Omri Gottesman, Tanya M Teslovich, Aris Baras, Tooraj Mirshahi, Jesper Gromada, Frederick E Dewey
BACKGROUND: Elucidation of the genetic factors underlying chronic liver disease may reveal new therapeutic targets. METHODS: We used exome sequence data and electronic health records from 46,544 participants in the DiscovEHR human genetics study to identify genetic variants associated with serum levels of alanine aminotransferase (ALT) and aspartate aminotransferase (AST). Variants that were replicated in three additional cohorts (12,527 persons) were evaluated for association with clinical diagnoses of chronic liver disease in DiscovEHR study participants and two independent cohorts (total of 37,173 persons) and with histopathological severity of liver disease in 2391 human liver samples...
March 22, 2018: New England Journal of Medicine
https://www.readbyqxmd.com/read/29560932/measurement-of-serum-and-hepatic-eicosanoids-by-liquid-chromatography-tandem-mass-spectrometry-lc-ms-ms-in-a-mouse-model-of-hepatocellular-carcinoma-hcc-with-delivery-of-c-met-and-activated-%C3%AE-catenin-by-hepatocyte-hydrodynamic-injection
#4
Yanjie Li, Nan Lin, Jianliang Xu, Yi Lu, Shuxian Chen, Chuzhi Pan, Chusi Wang, Mingxing Xu, Boxuan Zhou, Ruiyun Xu, Yong-Jiang Xu
BACKGROUND Most forms of cancer, including hepatocellular carcinoma (HCC), are associated with varying degrees of chronic inflammation. The association between the expression of eicosanoids, which are bioactive lipid mediators of inflammation, and HCC remains unknown. The aim of this study was to measure serum and hepatic eicosanoids in a mouse model of HCC with the delivery of c-Met and activated b-catenin by hepatocyte hydrodynamic injection. MATERIAL AND METHODS The HCC mouse model, and normal control mice, were used in this study with co-delivery of human c-Met combined with activated β-catenin into hepatocytes through hydrodynamic injection...
March 21, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29459165/house-sparrow-biomarkers-as-lead-pollution-bioindicators-evaluation-of-dose-and-exposition-length-on-hematological-and-oxidative-stress-parameters
#5
Fabricio D Cid, Noelia C Fernández, María V Pérez-Chaca, Rafael Pardo, Enrique Caviedes-Vidal, Juan G Chediack
House sparrows (Passer domesticus) have been proposed as a key ecological indicator of urban pollution. Remarkably, we lack knowledge about the physiological effects of lead on this bird species. Therefore, this study was aimed to evaluate the effect of Pb on several physiological parameters in house sparrows exposed to environmental Pb concentrations. In a first experiment, birds were exposed to Pb sub-lethal doses (from 1.3 to 14.0 µg of Pb/g animal/day) during 5 days, which resulted in a dose response increase of blood Pb levels and decrease of blood ALAD activity...
February 17, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29451090/study-of-changes-in-lipid-profile-and-insulin-resistance-in-egyptian-patients-with-chronic-hepatitis-c-genotype-4-in-the-era-of-daas
#6
Ghada El Sagheer, Elwy Soliman, Asmaa Ahmad, Lamiaa Hamdy
Chronic hepatitis C virus (HCV) infection is associated with altered metabolism, including dyslipidemia and insulin resistance. These contribute to disease progression and influences the response to therapy. To investigate the relationships of new direct-acting antiviral drugs, simeprevir/sofosbuvir, with lipid profile and insulin resistance (IR). Eighty chronic hepatitis C genotype 4 patients were included; they were divided into four groups according to the severity of fibrosis as detected by fibroscan. Forty healthy persons volunteered as a control group...
December 2018: Libyan Journal of Medicine
https://www.readbyqxmd.com/read/29423541/autoantibody-to-apolipoprotein-a-1-in-hepatitis-c-virus-infection-a-role-in-atherosclerosis
#7
Simon H Bridge, Sabrina Pagano, Meleri Jones, Graham R Foster, Dermot Neely, Nicolas Vuilleumier, Margaret F Bassendine
BACKGROUND/PURPOSE: One to three per cent of the world's population has hepatitis C virus (HCV) infection, which is not only a major cause of liver disease and cancer but also associated with an increased risk of atherosclerosis, despite an ostensibly favourable lipid profile. Autoantibodies are frequent in HCV infection and emerging evidence shows that autoantibodies could be valuable for cardiovascular disease (CVD) risk stratification. This study investigated a novel independent biomarker of CVD, autoantibodies to apolipoprotein A-1 (anti-apoA-1 IgG) and lipids in patients with chronic HCV before, during and after direct-acting anti-viral (DAA) therapy...
February 8, 2018: Hepatology International
https://www.readbyqxmd.com/read/29404511/exenatide-induces-carcinoembryonic-antigen-related-cell-adhesion-molecule-1-expression-to-prevent-hepatic-steatosis
#8
Hilda E Ghadieh, Harrison T Muturi, Lucia Russo, Christopher C Marino, Simona S Ghanem, Saja S Khuder, Julie C Hanna, Sukanta Jash, Vishwajeet Puri, Garrett Heinrich, Cara Gatto-Weis, Kevin Y Lee, Sonia M Najjar
Exenatide, a glucagon-like peptide-1 receptor agonist, induces insulin secretion. Its role in insulin clearance has not been adequately examined. Carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1) promotes hepatic insulin clearance to maintain insulin sensitivity. Feeding C57BL/6J mice a high-fat diet down-regulates hepatic Ceacam1 transcription to cause hyperinsulinemia, insulin resistance, and hepatic steatosis, as in Ceacam1 null mice (Cc1-/- ). Thus, we tested whether exenatide regulates Ceacam1 expression in high-fat diet-fed mice and whether this contributes to its insulin sensitizing effect...
January 2018: Hepatology Communications
https://www.readbyqxmd.com/read/29404478/ribavirin-suppresses-hepatic-lipogenesis-through-inosine-monophosphate-dehydrogenase-inhibition-involvement-of-adenosine-monophosphate-activated-protein-kinase-related-kinases-and-retinoid-x-receptor-%C3%AE
#9
Shinya Satoh, Kyoko Mori, Daichi Onomura, Youki Ueda, Hiromichi Dansako, Masao Honda, Shuichi Kaneko, Masanori Ikeda, Nobuyuki Kato
Ribavirin (RBV) has been widely used as an antiviral reagent, specifically for patients with chronic hepatitis C. We previously demonstrated that adenosine kinase, which monophosphorylates RBV into the metabolically active form, is a key determinant for RBV sensitivity against hepatitis C virus RNA replication. However, the precise mechanism of RBV action and whether RBV affects cellular metabolism remain unclear. Analysis of liver gene expression profiles obtained from patients with advanced chronic hepatitis C treated with the combination of pegylated interferon and RBV showed that the adenosine kinase expression level tends to be lower in patients who are overweight and significantly decreases with progression to advanced fibrosis stages...
August 2017: Hepatology Communications
https://www.readbyqxmd.com/read/29357809/coagonist-of-glp-1-and-glucagon-receptor-ameliorates-development-of-non-alcoholic-fatty-liver-disease
#10
Vishal Patel, Amit Joharapurkar, Samadhan Kshirsagar, Brijesh Sutariya, Maulik Patel, Hiren Patel, Dheerendra Pandey, Dipam Patel, Ramchandra Ranvir, Shekhar Kadam, Rajesh Bahekar, Mukul Jain
Background-Obesity, diabetes and dyslipidemic are the key pathogenic stimulus that enhances progression of non-alcoholic fatty liver disease (NAFLD). Coagonist of glucagon like-peptide-1 (GLP-1) receptor (GLP-1R) and glucagon receptor (GCGR) are being evaluated for obesity and diabetes. GLP-1 analogues have shown to reverse diabetes and obesity. Glucagon treatment reduces lipids after acute and chronic treatment. Objective-In this study, we have investigated the effect of coagonist on prevention of NAFLD induced by long-term feeding of high fat diet (HFD)...
January 18, 2018: Cardiovascular & Hematological Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/29350750/the-hepatoprotective-effect-of-selenium-enriched-yeast-and-gum-arabic-combination-on-carbon-tetrachloride-induced-chronic-liver-injury-in-rats
#11
Mohammed Hamid, Yassin Abdulrahim, Dandan Liu, Gang Qian, Alamzeb Khan, Kehe Huang
The antioxidant and anti-inflammatory effects of selenium-enriched yeast (SY) and Gum Arabic (GA) have been reported. This study aimed to determine the hepatoprotective effect of SY and GA combination on carbon tetrachloride (CCl4 )-induced chronic liver injury in rats and to explore their synergistic mechanisms of action. Forty adult male Wistar rats randomly allotted to 5 groups: (A) worked as control, (B) was administered CCl4 , (C-E) were fed daily by GA, SY, and GA+SY respectively after mixing with basal diet, following CCl4 -intoxication...
February 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29311405/worsening-of-serum-lipid-profile-after-direct-acting-antiviral-treatment
#12
Stefano Gitto, Arrigo F G Cicero, Elisabetta Loggi, Marina Giovannini, Fabio Conti, Elena Grandini, Valeria Guarneri, Alessandra Scuteri, Giovanni Vitale, Carmela Cursaro, Claudio Borghi, Pietro Andreone
INTRODUCTION: Host lipid metabolism influences viral replication and lifecycle of hepatitis C virus. Our aim was to evaluate changes in glucose and lipid metabolism of patients with chronic hepatitis C after therapy with direct acting antivirals (DAA). MATERIAL AND METHODS: We considered patients consecutively treated between January and November 2015 recording clinical data at baseline and week 24 of follow-up. Frozen serum samples were used for apolipoprotein A1 (apoA1), apolipoprotein B (apoB) and lipoprotein (a) [Lp(a)]...
January 2018: Annals of Hepatology
https://www.readbyqxmd.com/read/29230177/effect-of-morinda-citrifolia-noni-enriched-diet-on-hepatic-heat-shock-protein-and-lipid-metabolism-related-genes-in-heat-stressed-broiler-chickens
#13
Joshua Flees, Hossein Rajaei-Sharifabadi, Elizabeth Greene, Lesleigh Beer, Billy M Hargis, Laura Ellestad, Tom Porter, Annie Donoghue, Walter G Bottje, Sami Dridi
Heat stress (HS) has been reported to alter fat deposition in broilers, however the underlying molecular mechanisms are not well-defined. The objectives of the current study were, therefore: (1) to determine the effects of acute (2 h) and chronic (3 weeks) HS on the expression of key molecular signatures involved in hepatic lipogenic and lipolytic programs, and (2) to assess if diet supplementation with dried Noni medicinal plant (0.2% of the diet) modulates these effects. Broilers (480 males, 1 d) were randomly assigned to 12 environmental chambers, subjected to two environmental conditions (heat stress, HS, 35°C vs...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29212314/rapid-changes-in-serum-lipid-profiles-during-combination-therapy-with-daclatasvir-and-asunaprevir-in-patients-infected-with-hepatitis-c-virus-genotype-1b
#14
Takeshi Chida, Kazuhito Kawata, Kazuyoshi Ohta, Erika Matsunaga, Jun Ito, Shin Shimoyama, Satoru Yamazaki, Hidenao Noritake, Tetsuro Suzuki, Takafumi Suda, Yoshimasa Kobayashi
Background/Aims: Changes in lipid profiles in patients infected with hepatitis C virus (HCV) during direct-acting antiviral therapy have been reported in recent years. However, the clinical aspects of disturbed lipid metabolism in chronic HCV infection have not been fully elucidated. Methods: Dynamic changes in serum total, low-density lipoprotein (LDL), and high-density lipoprotein (HDL) cholesterol and apolipoprotein levels in patients infected with HCV genotype 1b were examined during combination therapy with daclatasvir (DCV) and asunaprevir (ASV)...
March 15, 2018: Gut and Liver
https://www.readbyqxmd.com/read/29203476/ucp1-deficiency-increases-adipose-tissue-monounsaturated-fatty-acid-synthesis-and-trafficking-to-the-liver
#15
Laura M Bond, James M Ntambi
Uncoupling protein-1 (UCP1) facilitates thermogenesis in brown and beige adipocytes and can promote energy expenditure by decreasing mitochondrial respiratory efficiency. Defects in UCP1 and brown adipose tissue thermogenesis subject animals to chronic cold stress and elicit compensatory responses to generate heat. How UCP1 regulates white adipose tissue (WAT) lipid biology and tissue crosstalk is not completely understood. Here, we probed the effect of UCP1 deficiency on FA metabolism in inguinal and epididymal WAT and investigated how these metabolic perturbations influence hepatic lipid homeostasis...
February 2018: Journal of Lipid Research
https://www.readbyqxmd.com/read/29176468/fat-quantification-in-the-abdomen
#16
Cheng William Hong, Soudabeh Fazeli Dehkordy, Jonathan C Hooker, Gavin Hamilton, Claude B Sirlin
Fatty liver disease is characterized histologically by hepatic steatosis, the abnormal accumulation of lipid in hepatocytes. It is classified into alcoholic fatty liver disease and nonalcoholic fatty liver disease, and is an increasingly important cause of chronic liver disease and cirrhosis. Assessing the severity of hepatic steatosis in these conditions is important for diagnostic and prognostic purposes, as hepatic steatosis is potentially reversible if diagnosed early. The criterion standard for assessing hepatic steatosis is liver biopsy, which is limited by sampling error, its invasive nature, and associated morbidity...
December 2017: Topics in Magnetic Resonance Imaging: TMRI
https://www.readbyqxmd.com/read/29161418/no-improvement-in-hemoglobin-a1c-following-hepatitis-c-viral-clearance-in-patients-with-and-without-hiv
#17
Chloe S Chaudhury, Julia Sheehan, Cheryl Chairez, Elizabeth Akoth, Chloe Gross, Rachel Silk, Sarah Kattakuzhy, Elana Rosenthal, Shyam Kottilil, Henry Masur, Colleen Hadigan
Hepatitis C clearance with directly acting antivirals (DAAs) may be associated with acute decreases in hemoglobin A1c (HbA1c). We prospectively evaluated 251 chronic hepatitis C virus (HCV)-infected subjects (31% human immunodeficiency virus [HIV] positive) pre- and post-DAA therapy (median follow-up 28 months). Changes in HbA1c and glucose were minimal and did not differ by sustained virologic response (SVR), HIV, diabetes, or fibrosis. Following SVR, mean change in HbA1c was -0.022 ± 0.53%; however, total and low-density lipoprotein cholesterol increased significantly...
December 27, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29158695/pnpla3-expression-and-its-impact-on-the-liver-current-perspectives
#18
REVIEW
Francesca Virginia Bruschi, Matteo Tardelli, Thierry Claudel, Michael Trauner
A single-nucleotide polymorphism occurring in the sequence of the human patatin-like phospholipase domain-containing 3 gene ( PNPLA3 ), known as I148M variant, is one of the best characterized and deeply investigated variants in several clinical scenarios, because of its tight correlation with increased risk for developing hepatic steatosis and more aggressive part of the disease spectrum, such as nonalcoholic steatohepatitis, advanced fibrosis and cirrhosis. Further, the I148M variant is positively associated with alcoholic liver diseases, chronic hepatitis C-related cirrhosis and hepatocellular carcinoma...
2017: Hepatic Medicine: Evidence and Research
https://www.readbyqxmd.com/read/29150932/high-fat-diet-induced-oxidative-stress-blocks-hepatocyte-nuclear-factor-4%C3%AE-and-leads-to-hepatic-steatosis-in-mice
#19
Dongsheng Yu, Gang Chen, Minglin Pan, Jia Zhang, Wenping He, Yang Liu, Xue Nian, Liang Sheng, Bin Xu
Nonalcoholic fatty liver disease (NAFLD) is the most common form of chronic liver disease with manifestation of over-accumulation of fat in liver. Increasing evidences indicate that NAFLD may be in part caused by malfunction of very low density lipoprotein (VLDL) secretion. Hepatocyte nuclear factor 4α (HNF4α), a nuclear receptor protein, plays an important role in sustain hepatic lipid homeostasis via transcriptional regulation of genes involved in secretion of VLDL, such as apolipoprotein B (ApoB). However, the exact functional change of HNF4α in NAFLD remains to be elucidated...
June 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29145892/association-between-plasma-phospholipid-saturated-fatty-acids-and-metabolic-markers-of-lipid-hepatic-inflammation-and-glycaemic-pathways-in-eight-european-countries-a-cross-sectional-analysis-in-the-epic-interact-study
#20
Ju-Sheng Zheng, Stephen J Sharp, Fumiaki Imamura, Albert Koulman, Matthias B Schulze, Zheng Ye, Jules Griffin, Marcela Guevara, José María Huerta, Janine Kröger, Ivonne Sluijs, Antonio Agudo, Aurelio Barricarte, Heiner Boeing, Sandra Colorado-Yohar, Courtney Dow, Miren Dorronsoro, Pia T Dinesen, Guy Fagherazzi, Paul W Franks, Edith J M Feskens, Tilman Kühn, Verena Andrea Katzke, Timothy J Key, Kay-Tee Khaw, Maria Santucci de Magistris, Francesca Romana Mancini, Elena Molina-Portillo, Peter M Nilsson, Anja Olsen, Kim Overvad, Domenico Palli, Jose Ramón Quirós, Olov Rolandsson, Fulvio Ricceri, Annemieke M W Spijkerman, Nadia Slimani, Giovanna Tagliabue, Anne Tjonneland, Rosario Tumino, Yvonne T van der Schouw, Claudia Langenberg, Elio Riboli, Nita G Forouhi, Nicholas J Wareham
BACKGROUND: Accumulating evidence suggests that individual circulating saturated fatty acids (SFAs) are heterogeneous in their associations with cardio-metabolic diseases, but evidence about associations of SFAs with metabolic markers of different pathogenic pathways is limited. We aimed to examine the associations between plasma phospholipid SFAs and the metabolic markers of lipid, hepatic, glycaemic and inflammation pathways. METHODS: We measured nine individual plasma phospholipid SFAs and derived three SFA groups (odd-chain: C15:0 + C17:0, even-chain: C14:0 + C16:0 + C18:0, and very-long-chain: C20:0 + C22:0 + C23:0 + C24:0) in individuals from the subcohort of the European Prospective Investigation into Cancer and Nutrition (EPIC)-InterAct case-cohort study across eight European countries...
November 17, 2017: BMC Medicine
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