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https://www.readbyqxmd.com/read/28087495/comparative-analysis-of-variation-and-selection-in-the-hcv-genome
#1
Juan Ángel Patiño-Galindo, Fernando González-Candelas
Genotype 1 of the hepatitis C virus (HCV) is the most prevalent of the variants of this virus. Its two main subtypes, HCV-1a and HCV-1b, are associated to differences in epidemic features and risk groups, despite sharing similar features in most biological properties. We have analyzed the impact of positive selection on the evolution of these variants using complete genome coding regions, and compared the levels of genetic variability and the distribution of positively selected sites. We have also compared the distributions of positively selected and conserved sites considering different factors such as RNA secondary structure, the presence of different epitopes (antibody, CD4 and CD8), and secondary protein structure...
January 10, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28087399/advances-with-using-crispr-cas-mediated-gene-editing-to-treat-infections-with-hepatitis-b-virus-and-hepatitis-c-virus
#2
REVIEW
Buhle Moyo, Kristie Bloom, Tristan Scott, Abdullah Ely, Patrick Arbuthnot
Chronic infections with hepatitis B and hepatitis C viruses (HBV and HCV) account for the majority of cases of cirrhosis and hepatocellular carcinoma. Current therapies for the infections have limitations and improved efficacy is necessary to prevent complications in carriers of the viruses. In the case of HBV persistence, the replication intermediate comprising covalently closed circular DNA (cccDNA) is particularly problematic. Licensed therapies have little effect on cccDNA and HBV replication relapses following treatment withdrawal...
January 10, 2017: Virus Research
https://www.readbyqxmd.com/read/28087069/safety-tolerability-and-antiviral-effect-of-rg-101-in-patients-with-chronic-hepatitis-c-a-phase-1b-double-blind-randomised-controlled-trial
#3
Meike H van der Ree, J Marleen de Vree, Femke Stelma, Sophie Willemse, Marc van der Valk, Svend Rietdijk, Richard Molenkamp, Janke Schinkel, Ad C van Nuenen, Ulrich Beuers, Salah Hadi, Marten Harbers, Eva van der Veer, Kai Liu, John Grundy, Amy K Patick, Adam Pavlicek, Jacqueline Blem, Michael Huang, Paul Grint, Steven Neben, Neil W Gibson, Neeltje A Kootstra, Hendrik W Reesink
BACKGROUND: miR-122 is an important host factor for hepatitis C virus (HCV) replication. The aim of this study was to assess the safety and tolerability, pharmacokinetics, and antiviral effect of a single dose of RG-101, a hepatocyte targeted N-acetylgalactosamine conjugated oligonucleotide that antagonises miR-122, in patients with chronic HCV infection with various genotypes. METHODS: In this randomised, double-blind, placebo-controlled, multicentre, phase 1B study, patients were randomly assigned to RG-101 or placebo (7:1)...
January 10, 2017: Lancet
https://www.readbyqxmd.com/read/28087068/clinical-development-of-hepatitis-c-virus-host-targeting-agents
#4
Mirjam B Zeisel, Thomas F Baumert
No abstract text is available yet for this article.
January 10, 2017: Lancet
https://www.readbyqxmd.com/read/28081591/new-perspectives-of-biomarkers-for-the-management-of-chronic-hepatitis-b
#5
REVIEW
Chih-Lin Lin, Jia-Horng Kao
With recent advances in molecular and genomic investigations, the impact of hepatitis B viral and host factors on the progression of chronic HBV infection has been explored. For viral factors, hepatitis B viral load is a strong predictor for liver disease progression. Hepatitis B viral kinetics appear to be important for successful anti-viral therapy. Serum HBsAg level serves as a complementary marker to viral load for the prediction of HBV-related adverse outcomes in patients with low viral load. In those with low viral load, high serum HBsAg level is associated with higher risks of cirrhosis and HCC...
December 2016: Clinical and Molecular Hepatology
https://www.readbyqxmd.com/read/28079817/clinical-features-of-hepatitis-b-and-c-virus-infections-with-high-%C3%AE-fetoprotein-levels-but-not-hepatocellular-carcinoma
#6
Cha Young Kim, Bo Ra Kim, Sang Soo Lee, Dae-Hong Jeon, Chang Min Lee, Wan Soo Kim, Hyun Chin Cho, Jin Joo Kim, Jae Min Lee, Hong Jun Kim, Chang Yoon Ha, Hyun Jin Kim, Tae Hyo Kim, Woon Tae Jung, Ok-Jae Lee
The appropriate α-fetoprotein (AFP) level to confirm hepatocellular carcinoma (HCC) could be 100 ng/mL; however, the clinical significance of falsely elevated AFP in patients without HCC has not been fully studied. We investigated the clinical features and outcome of patients without HCC but with high AFP levels (100 ng/mL), especially with chronic hepatitis B (CHB) or C (CHC).The sample included 124 consecutive patients with CHB (n = 97) or CHC (n = 27), with AFP levels >100 ng/mL and without HCC at baseline...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28078862/a-placebo-controlled-trial-of-a-proprietary-lipid-lowering-nutraceutical-supplement-in-the-management-of-dyslipidemia
#7
M Houston, R Rountree, J Lamb, S Phipps, S Meng, B Zhang
There is an ever growing emergence in the popularity of patient-driven care. As this health and wellness model grows, inquiries into diet, lifestyle, and supplemental approaches will continue to become a focal point for the healthcare consumer. Because of this, the aim of this study is to determine the tolerability, and overall effectiveness of a proprietary multi-ingredient lipid-lowering supplement in subjects with dyslipidemia. Forty participants were recruited for a single-center, double-blind randomized, placebocontrolled trial...
October 2016: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28078848/clinical-effects-of-thermotherapy-in-combination-with-intracavitary-infusion-of-traditional-chinese-medicine-in-the-treatment-of-malignant-pleural-effusion
#8
Y Gu, L Jiang, J H Miao, T S Liang, Q C Kan, D K Yang
Malignant fluid, a commonly seen tumor associated complication, mainly includes peritoneal effusion, malignant pleural effusion and pericardial effusion. It can produce huge negative influence on the quality of life of patients and even lead to death. Treatment of malignant effusion is one of the effective measures for improving life expectancy of patients. To evaluate the effect of thermotherapy in combination with intracavitary infusion of Kangai injection in treating malignant pleural effusion, 195 patients who received treatment from April 2010 to October 2014 in the First Affiliated Hospital of Zhengzhou University were selected and divided into an observation group and two control groups (group A and B)...
October 2016: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28078644/eight-or-12-week-treatment-of-hepatitis-c-with-ledipasvir-sofosbuvir-real-world-experience-in-a-large-integrated-health-system
#9
Jennifer B Lai, Maxwell A Witt, Mary Patricia Pauly, Joanna Ready, Michael Allerton, Suk Seo, David J Witt
BACKGROUND: Second-generation direct-acting antiviral agents are integral to treatment of hepatitis C (HCV) infection. Eight-week courses of ledipasvir/sofosbuvir (LDV/SOF) have been supported in some studies, but data are limited on efficacy in real-world use. Controversy exists regarding applicability of clinical trials to real-world effectiveness. We report virologic responses of patients with HCV genotype 1 infection receiving LDV/SOF for 8 or 12 weeks in a large integrated healthcare system...
January 11, 2017: Drugs
https://www.readbyqxmd.com/read/28077652/exosome-mediated-intercellular-communication-between-hepatitis-c-virus-infected-hepatocytes-and-hepatic-stellate-cells
#10
Pradip B Devhare, Reina Sasaki, Shubham Shrivastava, Adrian M Di Bisceglie, Ranjit Ray, Ratna B Ray
: Fibrogenic pathways in the liver are principally regulated by activation of hepatic stellate cells (HSC). Fibrosis is associated with chronic hepatitis C virus (HCV) infection, although the mechanism is poorly understood. HSC comprise the major population of the non-parenchymal cells in the liver. Since HCV does not replicate in HSC, we hypothesized that exosomes secreted from HCV-infected hepatocytes activate HSC. Primary or immortalized human hepatic stellate cells (LX2) were exposed to exosomes derived from HCV-infected hepatocytes (HCV-exo) and the expression of fibrosis related genes was examined...
January 11, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28076451/survival-benefits-of-interferon-based-therapy-in-patients-with-recurrent-hepatitis-c-after-orthotopic-liver-transplantation
#11
L P Zanaga, A G Vigani, R N Angerami, A Giorgetti, C A F Escanhoela, E C Ataíde, I F S F Boin, R S B Stucchi
Recurrent hepatitis C after orthotopic liver transplantation (OLT) is universal and can lead to graft failure and, consequently, reduced survival. Hepatitis C treatment can be used to prevent these detrimental outcomes. The aim of this study was to describe rates of hepatitis C recurrence and sustained virological response (SVR) to interferon-based treatment after OLT and its relationship to survival and progression of liver disease through retrospective analysis of medical records of 127 patients who underwent OLT due to cirrhosis or hepatocellular carcinoma secondary to chronic hepatitis C between January 2002 and December 2013...
January 9, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28075591/discovery-of-potent-cyclophilin-inhibitors-based-on-structural-simplification-of-sanglifehrin-a
#12
Victoria A Steadman, Simon B Pettit, Karine G Poullennec, Linos Lazarides, Andrew J Keats, David K Dean, Steven J Stanway, Carol A Austin, Jonathan A Sanvoisin, Gregory M Watt, Hans G Fliri, Albert C Liclican, Debi Jin, Melanie H Wong, Stephanie A Leavitt, Yu-Jen Lee, Yang Tian, Christian R Frey, Todd C Appleby, Uli Schmitz, Petr Jansa, Richard L Mackman, Brian Edward Schultz
Cyclophilin inhibition has been a target for the treatment of hepatitis C and other diseases, but the generation of potent, drug-like molecules through chemical synthesis has been challenging. In this study, a set of macrocyclic cyclophilin inhibitors was synthesized based on the core structure of the natural product sanglifehrin A. Initial compound optimization identified the valine-m-tyrosine-piperazic acid tripeptide (Val-m-Tyr-Pip) in the sanglifehrin core, stereocenters at C14 and C15, and the hydroxyl group of the m-tyrosine (m-Tyr) residue as key contributors to compound potency...
January 11, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28075394/coffee-intake-is-associated-with-a-lower-liver-stiffness-in-patients-with-non-alcoholic-fatty-liver-disease-hepatitis-c-and-hepatitis-b
#13
Alexander Hodge, Sarah Lim, Evan Goh, Ophelia Wong, Philip Marsh, Virginia Knight, William Sievert, Barbora de Courten
There is emerging evidence for the positive effects or benefits of coffee in patients with liver disease. We conducted a retrospective cross-sectional study on patients with non-alcoholic fatty liver disease (NAFLD), hepatitis C virus (HCV), and hepatitis B virus (HBV) infection to determine the effects of coffee intake on a non-invasive marker of liver fibrosis: liver stiffness assessed by transient elastography (TE). We assessed coffee and tea intake and measured TE in 1018 patients with NAFLD, HCV, and HBV (155 with NAFLD, 378 with HCV and 485 with HBV)...
January 10, 2017: Nutrients
https://www.readbyqxmd.com/read/28073888/selective-targeting-of-lysyl-oxidase-like-2-loxl2-suppresses-hepatic-fibrosis-progression-and-accelerates-its-reversal
#14
Naoki Ikenaga, Zhen-Wei Peng, Kahini A Vaid, Susan B Liu, Shuhei Yoshida, Deanna Y Sverdlov, Amanda Mikels-Vigdal, Victoria Smith, Detlef Schuppan, Yury V Popov
BACKGROUND/AIMS: We studied the role of lysyl oxidase-like 2 (LOXL2) in collagen crosslinking and hepatic progenitor cell (HPC) differentiation, and the therapeutic efficacy of a LOXL2-blocking monoclonal antibody on liver fibrosis progression/reversal in mice. METHODS: Anti-LOXL2 antibody, control antilysyl oxidase antibody or placebo was administered during thioacetamide (TAA)-induced fibrosis progression or during recovery. Therapeutic efficacy in biliary fibrosis was tested in BALB/c...
January 10, 2017: Gut
https://www.readbyqxmd.com/read/28073869/pancreatic-lymphoma-complicating-early-stage-chronic-hepatitis-c
#15
Vicky H Bhagat, Thomas Sepe
Hepatitis C virus (HCV) infection has also been associated with many extrahepatic manifestations including the development of B-cell non-Hodgkin's lymphoma (NHL). Primary pancreatic lymphoma is very rare and comprises 2.2% of NHL and 4.9% of all pancreatic malignancies. Our patient was a woman with a history of infection with HCV found to have a mass in the head of the pancreas. Biopsy of the mass revealed a high-grade B-cell lymphoma consistent with Burkitt's lymphoma. Our case reflects a need to initiate antiviral therapy for all patients infected with HCV even in early stages of fibrosis to prevent cirrhosis and other extrahepatic manifestations of infection with HCV...
January 10, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28073421/-research-advances-in-the-role-of-sphingolipids-in-hcv-and-hbv-life-cycles
#16
J Y Zhang, Z P Duan, J L Zhang, S J Zheng
Sphingolipids and their metabolites are not only important structural molecules of the cell membrane, but also involved in all phases of viral life cycle, including cell adhesion, membrane fusion, viral replication, viral assembly, intracellular transport, protein sorting, and exocytosis. In recent years, sphingolipids have become one of the focuses of lipid research. This article reviews the role of sphingolipids in the life cycles of hepatitis C virus and hepatitis B virus with reference to recent research achievements in China and foreign countries...
December 20, 2016: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/28073420/-report-of-the-eighth-symposium-on-the-hotspots-and-challenges-in-research-of-antiviral-therapy-for-chronic-hepatitis-b-and-chronic-hepatitis-c
#17
H M Zhu, S Jin, Y H Sun, Z Peng, D Z Zhang
No abstract text is available yet for this article.
December 20, 2016: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/28073411/-effect-of-umbilical-cord-mesenchymal-stem-cell-transplantation-on-immune-function-and-prognosis-of-patients-with-decompensated-hepatitis-b-cirrhosis
#18
X Q Fang, J F Zhang, H Y Song, Z L Chen, J Dong, X Chen, J J Pan, B Liu, C X Chen
Objective: To investigate the effect of human umbilical cord mesenchymal stem cells (hUCMSCs) on the immune function and prognosis of patients with decompensated hepatitis B cirrhosis. Methods: A total of 65 patients with decompensated hepatitis B cirrhosis were divided into observation group and control group. The patients in the observation group were given intervention (via the proper hepatic artery or the portal vein) and intravenous infusion of 4×10(8) hUCMSCs in two doses, as well as the same basic treatment as in the control group...
December 20, 2016: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/28072765/phase-ii-study-of-the-pi3k-inhibitor-bkm120-in-patients-with-advanced-or-recurrent-endometrial-carcinoma-a-stratified-type-i-type-ii-study-from-the-gineco-group
#19
P-E Heudel, M Fabbro, C Roemer-Becuwe, M C Kaminsky, A Arnaud, F Joly, S Roche-Forestier, J Meunier, C Foa, B You, F Priou, Y Tazi, A Floquet, F Selle, D Berton-Rigaud, A Lesoin, E Kalbacher, A Lortholary, L Favier, I Treilleux, I Ray-Coquard
: Backround:Patients with metastatic endometrial carcinoma have a poor prognosis and PIK3CA mutations and amplifications are common in these cancers. This study evaluated the efficacy and safety of the pure PI3K inhibitor BKM120 in advanced or recurrent endometrial carcinoma. METHODS: This phase II, multicentre, single-arm, double strata (histological low grade (LG) or high grade (HG)) open-label study enrolled patients with histologically confirmed advanced or recurrent endometrial carcinoma who had received not more than one prior chemotherapy regimen...
January 10, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28071871/harmonization-of-mangiferin-on-methylmercury-engendered-mitochondrial-dysfunction
#20
Shubhankar Das, Ajanta Paul, Kamalesh D Mumbrekar, Satish B S Rao
Mangiferin (MGN), a C-glucosylxanthone abundantly found in mango plants, was studied for its potential to ameliorate methylmercury (MeHg) induced mitochondrial damage in HepG2 (human hepatocarcinoma) cell line. Cell viability experiments performed using 3-[4,5-dimethylthiazol-2-yl]-2,5- diphenyltetrazolium bromide (MTT) showed protective property of MGN in annulling MeHg-induced cytotoxicity. Conditioning the cells with optimal dose of MGN (50 µM) lowered MeHg-induced oxidative stress, calcium influx/efflux, depletion of mitochondrial trans-membrane potential and prevented mitochondrial fission as observed by decrease in Mitotracker red fluorescence, expression of pDRP1 (serine 616), and DRP1 levels...
February 2017: Environmental Toxicology
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