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https://www.readbyqxmd.com/read/28548370/current-state-of-a-dual-behavior-of-antimicrobial-peptides-therapeutic-agents-and-promising-delivery-vectors
#1
REVIEW
Urszula Piotrowska, Marcin Sobczak, Ewa Oledzka
Microorganism resistance is an important challenge in modern medicine due to the global uncontrolled use of antibiotics. Natural and synthetic antimicrobial peptides (AMPs) symbolize a new family of antibiotics, which have stimulated research and clinical interest as new therapeutic options for infections. They represent one of the most promising antimicrobial substances, due to their broad spectrum of biological activity, against bacteria, fungi, protozoa, viruses, yeast and even tumour cells. Besides, being antimicrobial, AMPs have been shown to bind and neutralize bacterial endotoxins, as well as possess immunomodulatory, anti-inflammatory, wound-healing, angiogenic and antitumour properties...
May 26, 2017: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/28548299/a-noninvasive-diagnosis-of-hepatic-fibrosis-by-biofibroscore%C3%A2-in-chronic-hepatitis-c-patients
#2
Chen-Hua Liu, Chun-Jen Liu, Chun-Ming Hong, Tung-Hung Su, Hung-Chih Yang, Kuei-Ming Chen, Yi-Ping Huang, Yu-Ming Yeh, Hui-Lan Tien, Yuan-Chih Liu, Jia-Horng Kao, Ding-Shinn Chen, Pei-Jer Chen
BACKGROUND & AIMS: The diagnostic accuracy of a novel serological panel (BioFibroScore®) to predict hepatic fibrosis in patients with chronic hepatitis C virus (HCV) infection is unknown. METHODS: Three markers of BioFibroScore®, including urokinase plasminogen activator (uPA), matrix metalloproteinase-9 (MMP-9), and beta-2 microglobulin (β2M), were retrospectively evaluated in 635 HCV-infected patients who received percutaneous liver biopsy and FibroScan®. The formula of BioFibroScore® to predict the severity of hepatic fibrosis was developed by Adaboost algorithm...
May 26, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28548037/moonlighting-glycolytic-enzyme-glyceraldehyde-3-phosphate-dehydrogenase-gapdh-is-required-for-efficient-hepatitis-c-virus-and-dengue-virus-infections-in-human-huh-7-5-1-cells
#3
Meera Raj, Mary Langley, Steven J McArthur, François Jean
Hijacking of cellular biosynthetic pathways by human enveloped viruses is a shared molecular event essential for the viral lifecycle. In this study, the accumulating evidence of the importance of human glyceraldehyde-3-phosphate dehydrogenase (GAPDH) in the host secretory pathway led us to hypothesize that this moonlighting enzyme could play a key role in the lifecycle steps of two important Flaviviridae members, hepatitis C virus (HCV) and dengue virus (DENV). We used short interfering RNA (siRNA)-mediated knockdown of human GAPDH in Huh-7...
May 26, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28546792/hepatitis-c-virus-and-liver-transplantation
#4
Kalyan Ram Bhamidimarri, Sanjaya K Satapathy, Paul Martin
Hepatitis C virus (HCV) is a major cause of death from infectious disease and is still the leading indication for liver transplantation in the United States and other Western countries. All-oral, direct-acting antiviral (DAA) therapies have revolutionized the field, with HCV cure rates of more than 90% among treated patients. The safety and tolerability of these DAA agents have expanded the feasibility of HCV treatment even in the challenging pre- and post-liver transplant settings. However, the unique properties of DAA agents and the host profiles in these settings can limit the generalizability of HCV regimens, and prolongation of treatment duration or addition of ribavirin may be required in certain scenarios to optimize treatment outcomes...
April 2017: Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28546610/hepatitis-c-virus-infections-in-oral-lichen-planus-a-systematic-review-and-meta-analysis
#5
(no author information available yet)
The authors assert that those with oral lichen planus should be screened for hepatitis C infection to expedite diagnosis.
May 26, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28546061/primary-biliary-cholangitis-advances-in-management-and-treatment-of-the-disease
#6
Pietro Invernizzi', Annarosa Floreani, Marco Carbone, Marco Marzioni, Antonio Craxi, Luigi Muratori, Umberto Vespasiani Gentilucci, Ivan Gardini, Antonio Gasbarrini, Paola Krugeri, Francesco Saverio Mennini, Virginia Ronco, Elena Lanati, Pier Luigi Canonico, Domenico Alvaro
Primary Biliary Cholangitis, previously known as Primary Biliary Cirrhosis, is a rare disease, which mainly affects women in their fifth to seventh decades of life. It is a chronic autoimmune disease characterized by a progressive damage of interlobular bile ducts leading to ductopenia, chronic cholestasis and bile acids retention. Even if the disease usually presents a long asymptomatic phase and a slow progression, in many patients it may progress faster toward cirrhosis and its complications. The 10year mortality is greater than in diseases such as human immunodeficiency virus/Hepatitis C Virus coinfection and breast cancer...
May 8, 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28545480/effects-of-hepatitis-c-virus-core-protein-and-nonstructural-protein-4b-on-the-wnt-%C3%AE-catenin-pathway
#7
Xiao-Hua Jiang, Yu-Tao Xie, Ya-Ping Cai, Jing Ren, Tao Ma
BACKGROUND: Hepatitis C virus (HCV) core protein and nonstructural protein 4B (NS4B) are potentially oncogenic. Aberrant activation of the Wnt/β-catenin signaling pathway is closely associated with hepatocarcinogenesis. We investigated the effects of HCV type 1b core protein and NS4B on Wnt/β-catenin signaling in various liver cells, and explored the molecular mechanism underlying HCV-related hepatocarcinogenesis. RESULTS: Compared with the empty vector control, HCV core protein and NS4B demonstrated the following characteristics in the Huh7 cells: significantly enhanced β-catenin/Tcf-dependent transcriptional activity (F = 40...
May 25, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28544691/damned-if-you-do-damned-if-you-don-t-the-evolving-story-of-de-novo-and-recurrent-hepatocellular-carcinoma-amongst-those-treated-with-direct-acting-antivirals-for-hepatitis-c-virus
#8
Ju Dong Yang, Michael D Leise
No abstract text is available yet for this article.
June 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28544048/use-of-electronic-health-record-clinical-decision-support-tool-for-hcv-birth-cohort-screening
#9
David N Fitch, Ajay Dharod, Claudia L Campos, Marina Núñez
The United States Preventive Services Task Force (USPSTF) recommended one-time HCV testing for all patients in the 1945-1965 birth cohort, given the high hepatitis C virus (HCV) prevalence in this group [1]. In response, various interventions differing in complexity and cost have been developed. Goel et al, evaluated a multifaceted intervention sequentially implemented and report poor response to the electronic health record (EHR) alert and a very successful HCV screening, increased by 137%, after adding other tools including physician education, data feedback, and patient navigation [2]...
May 24, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/28543911/polymorphism-of-tlr5-rs5744174-is-associated-with-disease-progression-in-chinese-patients-with-chronic-hbv-infection
#10
Lina Cao, Tong Zhang, Junping Zhu, Aixin Li, Kai Zheng, Nan Zhang, Bin Su, Wei Xia, Hao Wu, Ning Li, Qiushui He
Toll-like receptors (TLRs) play a crucial role in innate and adaptive immunity, protecting the host from viral pathogens. Studies have implicated that TLR5 is associated with various diseases such as autoimmune and inflammation related diseases. However, little is known about the relationship between TLR5 and hepatitis B virus (HBV) infection. We studied the effect of TLR5 gene polymorphisms on susceptibility to and disease progression of chronic hepatitis B (CHB) infection in Chinese. Blood samples were taken from 636 patients with CHB, HBV-related liver cirrhosis (LC) or hepatocellular carcinoma (HCC) and 273 controls...
May 25, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/28543875/unconjugated-interferon-stimulated-gene-15-specifically-interacts-with-the-hepatitis-c-virus-ns5a-protein-via-domain-i
#11
Nanae Minami, Takayuki Abe, Lin Deng, Chieko Matsui, Takasuke Fukuhara, Yoshiharu Matsuura, Ikuo Shoji
Interferon-stimulated gene 15 (ISG15) is a ubiquitin-like protein induced by type I interferon. Although several groups have reported ISGylation of the HCV NS5A protein, it is still unclear whether ISGylation of NS5A has anti-viral or pro-viral effects in HCV infection. In the present study, we examined the role of ISGylation-independent, unconjugated ISG15 in HCV infection. Immunoprecipitation analyses revealed that ISG15 specifically interacted with NS5A domain I. The ISG15 mutants lacking a C-terminal glycine residue essential for ISGylation still interacted with NS5A protein...
May 25, 2017: Microbiology and Immunology
https://www.readbyqxmd.com/read/28543644/detection-of-viral-hepatitis-e-in-clinical-liver-biopsies
#12
Sandrine Prost, Claire L Crossan, Harry R Dalton, Robert A De Man, Nassim Kamar, Janick Selves, Catharine Dhaliwal, Linda Scobie, Christopher O C Bellamy
AIMS: to determine the relative utility of in situ testing for hepatitis E virus (HEV) RNA and paraffin section PCR to diagnose HEV infection in paraffin-embedded clinical liver biopsies, and to correlate with clinico-pathological characteristics. METHODS AND RESULTS: We evaluated in situ and quantitative PCR (qPCR)-based approaches to identifying HEV in clinical liver biopsies from infected patients from multiple centers, correlating with clinical setting (immunocompetent, allograft or immunosuppressed native liver) and histologic findings...
May 24, 2017: Histopathology
https://www.readbyqxmd.com/read/28543215/fib-4-stage-of-liver-fibrosis-predicts-incident-heart-failure-among-hiv-infected-and-uninfected-patients
#13
Kaku A So-Armah, Joseph K Lim, Vincent Lo Re, Janet P Tate, H Chang Chung-Chou, Adeel A Butt, Cynthia L Gibert, David Rimland, Vincent C Marconi, Matthew B Goetz, Maria C Rodriguez-Barradas, Michael E DeBakey, Matthew J Budoff, Hilary A Tindle, Jeffrey H Samet, Amy C Justice, Matthew S Freiberg
Liver fibrosis is common, particularly in human immunodeficiency virus infected (HIV+) people. HIV+ people have excess congestive heart failure (CHF) risk compared to uninfected people. It remains unknown if stage of liver fibrosis influences the CHF risk or if HIV or hepatitis C virus (HCV) infection modifies this association. Our objectives were to assess whether: 1) stage of liver fibrosis is independently associated with incident CHF; 2) the association between stage of liver fibrosis and incident CHF is modified by HIV/HCV status...
May 24, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28543053/sofosbuvir-and-ribavirin-in-adolescents-12-to-17-years-old-with-hepatitis-c-virus-genotype-2-or-3-infection
#14
Stefan Wirth, Philip Rosenthal, Regino P Gonzalez-Peralta, Maureen M Jonas, William F Balistreri, Lin Chuan-Hao, Winita Hardikar, Kathryn Kersey, Benedetta Massetto, Bittoo Kanwar, Diana M Brainard, Jiang Shao, Evguenia Svarovskaia, Brian Kirby, Ronen Arnon, Karen F Murray, Kathleen B Schwarz
BACKGROUND & AIMS: Children with chronic hepatitis C virus (HCV) infection have limited treatment options. We evaluated the all-oral combination of sofosbuvir and ribavirin in adolescents aged 12-17 with HCV genotype 2 or 3. METHODS: Fifty-two patients received sofosbuvir 400mg once daily and weight-based ribavirin twice daily for 12 (genotype 2) or 24 (genotype 3) weeks. The pharmacokinetics of sofosbuvir and its metabolite GS-331007 were evaluated by intensive plasma sampling at day 7 in the first 10 patients enrolled, and by sparse sampling in all patients throughout treatment...
May 22, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28542351/risk-factors-for-hepatitis-c-seropositivity-among-young-people-who-inject-drugs-in-new-york-city-implications-for-prevention
#15
Benjamin Eckhardt, Emily R Winkelstein, Marla A Shu, Michael R Carden, Courtney McKnight, Don C Des Jarlais, Marshall J Glesby, Kristen Marks, Brian R Edlin
BACKGROUND: Hepatitis C virus (HCV) infection remains a significant problem in the United States, with people who inject drugs (PWID) disproportionately afflicted. Over the last decade rates of heroin use have more than doubled, with young persons (18-25 years) demonstrating the largest increase. METHODS: We conducted a cross-sectional study in New York City from 2005 to 2012 among young people who injected illicit drugs, and were age 18 to 35 or had injected drugs for ≤5 years, to examine potentially modifiable factors associated with HCV among young adults who began injecting during the era of syringe services...
2017: PloS One
https://www.readbyqxmd.com/read/28539847/hepatitis-c-virus-infection-in-children
#16
Karen F Murray
No abstract text is available yet for this article.
March 2017: Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28539442/extracellular-interactions-between-hepatitis-c-virus-and-secreted-apolipoprotein-e
#17
Zhihua Li, Yadong Li, Yanwei Bi, Hui Zhang, Yufeng Yao, Qihan Li, Wei Cun, Shaozhong Dong
Interactions between hepatitis C virus (HCV) and lipoproteins in humans play an important role in the efficient establishment of chronic infection. Apolipoprotein E (ApoE) on the HCV envelope mediates virus attachment to host cells as well as immune evasion. This interaction is thought to occur in hepatocytes, as ApoE plays dual functions in HCV assembly and maturation as well as cell attachment. In the present study, we found that secreted ApoE (sApoE) can also bind to viral particles via its C-terminal domain after HCV is released from the cell...
May 24, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28539069/real-world-challenges-for-hepatitis-c-virus-medications-a-critical-overview
#18
Imran Shahid, Waleed Hassan AlMalki, Sajida Hassan, Muhammad Hassan Hafeez
From 2010, the landscape of hepatitis C therapeutics has been changed rapidly, and today we are standing at a cusp of a pharmacological revolution where highly effective and interferon (IFN)-free direct acting antivirals (DAAs) are already on the market. Such treatment paradigms attain 90-95% sustained virologic response (SVR; undetectable viral load at week 12 or 24 at the end of therapy) rates in treated individuals compared to 50-70% with treatment completion of dual-therapy-pegylated interferon (PEG-IFN) and ribavirin (RBV)...
May 25, 2017: Critical Reviews in Microbiology
https://www.readbyqxmd.com/read/28538268/etiological-factors-of-chronic-hepatitis-in-italy-a-2014-national-survey
#19
Tommaso Stroffolini, Evangelista Sagnelli, Piero L Almasio, Angelo Andriulli, Antonina Smedile, Mario Pirisi, Caterina Sagnelli, Maurizio Russello, Nicola Coppola, Massimo de Luca, Mariantonietta Pisaturo, Floriano Rosina, Giovanni B Gaeta
BACKGROUND: The last Italian prevalence survey on chronic hepatitis (CH) conducted in 2001 showed that the hepatitis C virus (HCV) was the main agent associated with CH. AIM: The aim of this study was to evaluate epidemiological changes in CH occurring after 13 years. PATIENTS AND METHODS: Enrollment of 1392 CH consecutive patients referred to 16 Italian liver units in 2014 scattered all over the country (four in the North, four in the Center, four in the South, and four in the Islands) was performed...
May 19, 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28538267/cirrhosis-has-no-impact-on-therapeutic-responses-of-entecavir-for-chronic-hepatitis-b
#20
Pin-Chao Wang, Tao-Yang Wei, Tai-Chung Tseng, Hans Hsienhong Lin, Chia-Chi Wang
OBJECTIVE: As the efficacy of a direct antiviral agent is reduced in cirrhotic chronic hepatitis C patients, prolonged duration of treatment or addition of ribavirin is recommended to improve the rates of sustained virological response. However, the impact of cirrhosis on the efficacy of antiviral treatment for chronic hepatitis B (CHB) remained unclear. PATIENTS AND METHODS: This retrospective cohort study screened entecavir (ETV)-treated CHB patients in Taipei Tzu Chi Hospital from January 2007 till October 2014...
May 19, 2017: European Journal of Gastroenterology & Hepatology
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