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https://www.readbyqxmd.com/read/28732153/hepatitis-b-and-c-viruses-and-biologics
#1
P Grewal, R Sanghera
Hepatitis B virus (HBV) and hepatitis C virus (HCV) are common, worldwide viral illnesses that potentially impact the clinician's ability to manage patients with immunosuppressive medications such as biological therapy. In light of recent literature reviews, patients with HBV and HCV should be referred to a hepatologist or infectious disease expert prior to initiation of biological therapy.
July 2017: Skin Therapy Letter
https://www.readbyqxmd.com/read/28732143/ifnl4-rs368234815-and-rs117648444-variants-predict-off-treatment-hbsag-seroclearance-in-ifn-treated-hbeag-negative-chronic-hepatitis-b-patients
#2
Enrico Galmozzi, Floriana Facchetti, Glenda Grossi, Alessandro Loglio, Mauro Vigano, Giovanna Lunghi, Massimo Colombo, Pietro Lampertico
BACKGROUND AND AIM: Robust baseline predictors of interferon (IFN) response in HBeAg negative chronic hepatitis B (CHB) patients are not currently available. The recently described rs368234815 TT/ΔG dinucleotide and rs117648444 nonsynonymous P70S polymorphisms in IFN lambda 4 (IFNL4) gene, which are strongly associated with response to IFN in hepatitis C virus (HCV) infection, could be also useful in IFN treated CHB patients. Here we assessed whether IFNL4 rs368234815 and rs117648444 polymorphisms predict IFN induced HBsAg clearance in CHB patients...
July 21, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28732046/qualitative-differences-in-cellular-immunogenicity-elicited-by-hepatitis-c-virus-t-cell-vaccines-employing-prime-boost-regimens
#3
Wendy G Tan, Iryna Zubkova, Alla Kachko, Frances Wells, Heiko Adler, Gerd Sutter, Marian E Major
T-cell based vaccines have been considered as attractive candidates for prevention of hepatitis C virus (HCV) infections. In this study we compared the magnitude and phenotypic characteristics of CD8+ T-cells induced by three commonly used viral vectors, Adenovirus-5 (Ad5), Vaccinia virus (VV) and Modified Vaccinia Ankara (MVA) expressing the HCV NS3/4A protein. C57/BL6 mice were primed with DNA expressing NS3/4A and boosted with each of the viral vectors in individual groups of mice. We then tracked the vaccine-induced CD8+ T-cell responses using pentamer binding and cytokine production analysis...
2017: PloS One
https://www.readbyqxmd.com/read/28732019/rate-of-hepatitis-c-viral-clearance-by-human-livers-in-human-patients-liver-transplantation-modeling-primary-infection-and-implications-for-studying-entry-inhibition
#4
Michael G Hughes, William W Tucker, Sreelatha Reddy, Michael E Brier, David Koch, Craig J McClain, Colleen B Jonsson, Nobuyuki Matoba, Donghoon Chung
To better understand the dynamics of early hepatitis C virus (HCV) infection, we determined how rapidly non-cirrhotic HCV-uninfected liver allografts clear HCV from the circulation of cirrhotic HCV-infected patients at the time of transplantation but before administration of immunosuppression. Specifically, we characterized serum HCV kinetics during the first 90 min of reperfusion for 19 chronically HCV-infected patients transplanted with an HCV-uninfected liver by measuring serum viral load immediately prior to reperfusion (t = 0) and then every 15 min for a total of 90 min (t = 90)...
2017: PloS One
https://www.readbyqxmd.com/read/28731786/high-post-treatment-%C3%AE-fetoprotein-levels-and-aspartate-aminotransferase-to-platelet-ratio-index-predict-hepatocellular-carcinoma-in-hepatitis-c-virus-decompensated-cirrhotic-patients-with-sustained-virological-response-after-antiviral-therapy
#5
Fanpu Ji, Rui Zhou, Wenjun Wang, Dan Bai, Caini He, Zhifang Cai, Yuan Shen, Shengbang Wang, Hong Deng, Zongfang Li
Although eradication of hepatitis C virus (HCV) decreases the risk of hepatocellular carcinoma (HCC) development, a considerable level of risk remains in cirrhotic patients with advanced liver disease. Yet, data for the effect of serum markers on HCC development in this population after viral eradication are still lacking. Seventy-eight consecutive patients with HCV infection and decompensated cirrhosis were administered interferon-based regimens at our hospital between August 2008 and December 2013. Thirty-four achieved sustained virological response and were enrolled in the study...
July 21, 2017: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/28731371/determinants-of-infection-outcome-in-hcv-genotype-4
#6
Rania A Zayed, Dalia Omran, Abeer A Zayed, Lobna O Elmessery
Hepatitis C virus (HCV) infection represents a worldwide health problem and has been for long an attractive point of research due to diversity among different genotypes regarding unique geographical distribution and diverse treatment outcome. HCV is considered a major cause of chronic liver disease and cirrhosis, which leads to liver failure and hepatocellular carcinoma requiring liver transplantation. Of the HCV genotypes identified, HCV genotype 4 (HCV-4) is the least studied. HCV-4 is responsible for ∼10% of HCV infections and is common in the Middle East and Africa; recently it is increasingly prevalent in European Countries...
July 21, 2017: Viral Immunology
https://www.readbyqxmd.com/read/28729862/rad51-interacts-with-non-structural-3-protein-of-hepatitis-c-virus-and-regulates-viral-production
#7
Kidong Son, Tram T T Nguyen, Jae-Woong Choi, Long V Pham, Trang T D Luong, Yun-Sook Lim, Soon B Hwang
Hepatitis C virus (HCV) is a leading cause of chronic liver disease affecting over 170 million people worldwide. Chronic infection with HCV progresses to liver fibrosis, cirrhosis, and hepatocellular carcinoma. HCV exploits host cellular factors for viral propagation. To investigate the cellular factors required for HCV propagation, we screened a siRNA library targeting human cell cycle genes using cell culture grown HCV-infected cells. In the present study, we selected and characterized a gene encoding Rad51...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28729054/isosorbide-based-peptidomimetics-as-inhibitors-of-hepatitis-c-virus-serine-protease
#8
Aline C Portela, Thalita G Barros, Camilo H da S Lima, Luiza R S Dias, Pedro H R de A Azevedo, Anna Sophia C L Dantas, Ronaldo Mohana-Borges, Gustavo T Ventura, Sergio Pinheiro, Estela M F Muri
Hepatitis C infection is a cause of chronic liver diseases such as cirrhosis and carcinoma. The current therapy for hepatitis C has limited efficacy and low tolerance. The HCV encodes a serine protease which is critical for viral replication, and few protease inhibitors are currently on the market. In this paper, we describe the synthesis and screening of novel isosorbide-based peptidomimetic inhibitors, in which the compounds 1d, 1e, and 1i showed significant inhibition of the protease activity in vitro at 100µM...
July 8, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28728927/hcv-infected-and-hiv-hcv-co-infected-individuals-treated-with-direct-acting-antivirals-to-what-extent-do-they-differ
#9
Giuseppe Bruno, Annalisa Saracino, Luigia Scudeller, Claudia Fabrizio, Raffaele Dell'Acqua, Eugenio Milano, Michele Milella, Nicoletta Ladisa, Laura Monno, Gioacchino Angarano
BACKGROUND AND AIMS: DAA-based anti-HCV treatment has been associated with high rates of sustained virological response (SVR) and good tolerability in clinical randomized trials. To assess safety and effectiveness of DAAs in both HCV mono-infected and HIV/HCV co-infected patients. METHODS: All consecutive HCV-infected patients, including HIV/HCV co-infected, receiving DAA-based treatment from February 2015 until September 2016 in our Clinic, were included. Clinical, virological and biochemical data were retrieved...
July 17, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28728900/ultra-sensitive-aptasensor-based-on-a-gqd-nanocomposite-for-detection-of-hepatitis-c-virus-core-antigen
#10
Kazhal Ghanbari, Mahmoud Roushani, Azadeh Azadbakht
In the present study, by using the aptamer proximity binding assay strategy, a novel electrochemical aptasensor is described for ultrasensitive detection of hepatitis C virus (HCV) core antigen. The immobilization surface is prepared by the modification of a glassy carbon electrode (GCE) with a graphene quantum dots (GQD). GQD were introduced as a novel and suitable substrate for aptamers through π-π stacking interactions, the richness of hydrophilic edges as well as hydrophobic plane in GQD which enhances the aptamer absorption on the electrode surface...
July 17, 2017: Analytical Biochemistry
https://www.readbyqxmd.com/read/28727946/confounding-by-single-nucleotide-polymorphism-rs117648444-p70s-affects-the-association-of-interferon-lambda-locus-variants-with-response-to-interferon-%C3%AE-ribavirin-therapy-in-patients-with-chronic-genotype-3-hepatitis-c-virus-infection
#11
Anand Bhushan, Sumona Ghosh, Samsiddhi Bhattacharjee, Sreedhar Chinnaswamy
Genome-wide association studies discovered interferon lambda (IFNL or IFN-λ) locus on chromosome 19 to be involved in clearance of chronic hepatitis C virus (HCV) infection in patients following interferon-α-ribavirin (IFN-RBV) therapy. Subsequent studies established a dinucleotide polymorphism rs368234815, as the prime causal variant behind this association. The ΔG allele of this variant gives rise to a new IFNL gene, IFNL4, coding for IFN-λ4 whose activity paradoxically associates with lesser viral clearance rates...
July 20, 2017: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/28727784/an-ns5a-single-optimized-method-to-determine-genotype-subtype-and-resistance-profiles-of-hepatitis-c-strains
#12
Elisabeth Andre-Garnier, Bernard Besse, Audrey Rodallec, Olivier Ribeyrol, Virginie Ferre, Caroline Luco, Laura Le Guen, Nathalie Bourgeois, Jérôme Gournay, Eric Billaud, François Raffi, Marianne Coste-Burel, Berthe-Marie Imbert-Marcille
The objective was to develop a method of HCV genome sequencing that allowed simultaneous genotyping and NS5A inhibitor resistance profiling. In order to validate the use of a unique RT-PCR for genotypes 1-5, 142 plasma samples from patients infected with HCV were analysed. The NS4B-NS5A partial region was successfully amplified and sequenced in all samples. In parallel, partial NS3 sequences were analyzed obtained for genotyping. Phylogenetic analysis showed concordance of genotypes and subtypes with a bootstrap >95% for each type cluster...
2017: PloS One
https://www.readbyqxmd.com/read/28727243/filamin-a-expression-predicts-early-recurrence-of-hepatocellular-carcinoma-after-hepatectomy
#13
Matteo Donadon, Luca Di Tommaso, Cristiana Soldani, Barbara Franceschini, Alfonso Terrone, Antonio Mimmo, Eleonora Vitali, Massimo Roncalli, Andrea Lania, Guido Torzilli
BACKGROUND & AIMS: Recurrence of hepatocellular carcinoma (HCC) after hepatectomy is very high. A predictive marker of early recurrence (ER) capable of personalizing follow-up and developing a new target therapy would be beneficial. The overexpression of Filamin-A (FLNA), a cytoskeleton protein with scaffolding properties, has recently been associated with progression in tumors. The aim of this study was to test the expression of FLNA in a cohort of patients operated for HCC. METHODS: A retrospective cohort of patients who underwent hepatic resection at Humanitas Clinical and Research Center between January 2004 and December 2014 was analyzed...
July 20, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28726043/injection-drug-use-unemployment-and-severe-food-insecurity-among-hiv-hcv-co-infected-individuals-a-mediation-analysis
#14
Taylor McLinden, Erica E M Moodie, Anne-Marie Hamelin, Sam Harper, Sharon L Walmsley, Gilles Paradis, Wusiman Aibibula, Marina B Klein, Joseph Cox
Severe food insecurity (FI), which indicates reduced food intake, is common among HIV-hepatitis C virus (HCV) co-infected individuals. Given the importance of unemployment as a proximal risk factor for FI, this mediation analysis examines a potential mechanism through which injection drug use (IDU) is associated with severe FI. We used biannual data from the Canadian Co-infection Cohort (N = 429 with 3 study visits, 2012-2015). IDU in the past 6 months (exposure) and current unemployment (mediator) were self-reported...
July 19, 2017: AIDS and Behavior
https://www.readbyqxmd.com/read/28725561/bronchopleural-and-pleurocutaneous-fistula-in-hiv-patient-with-pulmonary-tuberculosis
#15
Filipa Duarte-Ribeiro, Cátia Dias, Margarida Mota
We present a 37-year-old man intravenous drug user, with HIV/HCV/HBV co-infection, lymph node tuberculosis 10 years before (completed 12 months of treatment), and left lobar pneumonia 4 years earlier complicated by empyema (treated with left lower lobectomy with a persistent bronchopleural fistula) who was admitted to the emergency department with caseous-purulent drainage and exteriorization of air from an orifice in the chest wall. Acid-fast bacilli were identified in this drainage. A pleurocutaneous fistula was evident on the chest computed tomography scan...
2017: IDCases
https://www.readbyqxmd.com/read/28725041/a-screen-for-novel-hepatitis-c-virus-rdrp-inhibitor-identifies-a-broad-spectrum-antiviral-compound
#16
Abhilasha Madhvi, Smita Hingane, Rajpal Srivastav, Nishant Joshi, Chandru Subramani, Rajagopalan Muthumohan, Renu Khasa, Shweta Varshney, Manjula Kalia, Sudhanshu Vrati, Milan Surjit, C T Ranjith-Kumar
Hepatitis C virus (HCV) is a global pathogen and infects more than 185 million individuals worldwide. Although recent development of direct acting antivirals (DAA) has shown promise in HCV therapy, there is an urgent need for the development of more affordable treatment options. We initiated this study to identify novel inhibitors of HCV through screening of compounds from the National Cancer Institute (NCI) diversity dataset. Using cell-based assays, we identified NSC-320218 as a potent inhibitor against HCV with an EC50 of 2...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724915/quinolinate-phosphoribosyltransferase-is-an-antiviral-host-factor-against-hepatitis-c-virus-infection
#17
Zhilong Wang, Yanhang Gao, Chao Zhang, Haiming Hu, Dongwei Guo, Yi Xu, Qiuping Xu, Weihong Zhang, Sisi Deng, Pingyun Lv, Yan Yang, Yanhua Ding, Qingquan Li, Changjiang Weng, Xinwen Chen, Sitang Gong, Hairong Chen, Junqi Niu, Hong Tang
HCV infection can decrease NAD(+)/NADH ratio, which could convert lipid metabolism to favor HCV replication. In hepatocytes, quinolinate phosphoribosyl transferase (QPRT) catabolizes quinolinic acid (QA) to nicotinic acid mononucleotide (NAMN) for de novo NAD synthesis. However, whether and how HCV modulates QPRT hence the lipogenesis is unknown. In this work, we found QPRT was reduced significantly in livers of patients or humanized C/O(Tg) mice with persistent HCV infection. Mechanistic studies indicated that HCV NS3/4A promoted proteasomal degradation of QPRT through Smurf2, an E3 ubiquitin-protein ligase, in Huh7...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724048/impact-of-alcohol-consumption-among-patients-in-hepatitis-c-virus-treatment
#18
Andréa Carvalho Maia Vieira-Castro, Luiz Carlos Marques de Oliveira
BACKGROUND: Recent studies have questioned the recommendation of abstinence from alcohol for at least 6 months for alcoholic patients to be treated for hepatitis C. OBJECTIVE: The present study aimed to assess the impact of alcohol consumption among patients undergoing hepatitis C treatment. METHODS: In this cross-sectional study, 121 patients [78 (64.5%) men; 28-70 years] were evaluated. They were divided as follows: patients who consumed <12 g of ethanol/day throughout life (Group 1), 12-59 g/day (Group 2) and ≥60 g/day (Group 3)...
July 13, 2017: Arquivos de Gastroenterologia
https://www.readbyqxmd.com/read/28723945/haematological-and-cd4-t-cells-reference-ranges-in-healthy-adult-populations-in-gojjam-zones-in-amhara-region-ethiopia
#19
Wondemagegn Mulu, Bayeh Abera, Zewdie Mekonnen, Yesuf Adem, Mulat Yimer, Yohannes Zenebe, Asmare Amuamuta, Wondimu Gebeyehu
INTRODUCTION: Establishing national population haematological and immunological reference ranges are essential for clinical management of patients. However, there is scarcity of information on community based haematological reference ranges established from Ethiopian population. Therefore, this study aimed at determining haematological and CD4+ T cells reference ranges in healthy adults from East and West Gojjam zones, Ethiopia. METHODS: Community based cross-sectional study was conducted from May 2015 to December 2015 in healthy adult residents of Gojjam zone...
2017: PloS One
https://www.readbyqxmd.com/read/28723780/the-relationship-between-itpa-rs1127354-polymorphisms-and-efficacy-of-antiviral-treatment-in-northeast-chinese-chc-patients
#20
Zhenhua Liu, Song Wang, Wenqian Qi, Xu Wang, Derong Sun, Hongguang Wang, Yonggui Zhang, Zhongxie Li, Liying Zhu, Ping Zhao, Honghua Guo, Changyu Zhou, Jiangbin Wang
This prospective study investigated the relationship between 2 inosine triphosphatase (ITPA) polymorphisms (rs7270101 and rs1127354) and the efficacy of ribavirin-based antiviral therapy in hepatitis C virus (HCV)-infected Chinese patients.A total of 906 patients diagnosed with chronic hepatitis C receiving pegylated interferon (PEG-IFN) plus ribavirin combination therapy between January 2011 and January 2014 from 5 hepatitis centers in Northeast China were enrolled. The patients were divided into genotype 1 and non-genotype 1 groups according to the genotype of infected HCV...
July 2017: Medicine (Baltimore)
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