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https://www.readbyqxmd.com/read/28523305/the-impact-of-liver-steatosis-on-early-and-sustained-treatment-response-in-chronic-hepatitis-c-patients
#1
Alice Elena Găman, Anca Marilena Ungureanu, Adriana Turculeanu, Dan IonuŢ Gheonea, Andrei Ioan Drocaş, George Mitroi, Maria DobriŢoiu, Maria Victoria Comănescu, Andreea Doriana Stănculescu, Ramona Cioboată, Claudiu Florin Jieanu, Paul Ioan Tomescu
Steatosis is a frequent feature of hepatitis C virus (HCV) infection. Steatosis may be an important cofactor in both accelerating fibrosis and increasing liver necroinflammatory activity in chronic hepatitis C. The main objective of this study was the evaluation of biological response rates, early viral response, sustained viral response in patients with chronic hepatitis C treated with Interferon-alpha (IFN-α), Pegylated (PEG)-IFN-α2a or -α2b plus Ribavirin and to relate it to the presence of hepatic steatosis...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28521677/molluscum-contagiosum-an-update
#2
Alexander Kc Leung, Benjamin Barankin, Kam Lun Hon
BACKGROUND: Molluscum contagiosum is a viral cutaneous infection in childhood that occurs worldwide. Physicians should familiarize themselves with this common condition. OBJECTIVE: To review in depth the epidemiology, pathophysiology, clinical manifestations, complications and, in particular, treatment of molluscum contagiosum. METHODS: A PubMed search was completed in Clinical Queries using the key term "molluscum contagiosum". Patents were searched using the key term "molluscum contagiosum" from www...
May 17, 2017: Recent Patents on Inflammation & Allergy Drug Discovery
https://www.readbyqxmd.com/read/28518019/ebola-virus-imported-from-guinea-to-senegal-2014
#3
Daye Ka, Gamou Fall, Viviane Cissé Diallo, Ousmane Faye, Louise Deguenonvo Fortes, Oumar Faye, Elhadji Ibrahim Bah, Kadia Mbaye Diallo, Fanny Balique, Cheikh Tidiane Ndour, Moussa Seydi, Amadou Alpha Sall
In March 2014, the World Health Organization declared an outbreak of Ebola virus disease in Guinea. In August 2014, a case caused by virus imported from Guinea occurred in Senegal, most likely resulting from nonsecure funerals and travel. Preparedness and surveillance in Senegal probably prevented secondary cases.
June 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28514954/needle-exchange-programs-for-the-prevention-of-hepatitis-c-virus-infection-in-people-who-inject-drugs-a-systematic-review-with-meta-analysis
#4
Stephen M Davis, Shay Daily, Alfgeir L Kristjansson, George A Kelley, Keith Zullig, Adam Baus, Danielle Davidov, Melanie Fisher
BACKGROUND: Previous research on the effectiveness of needle exchange programs (NEP) in preventing hepatitis C virus (HCV) in people who inject drugs (PWID) has shown mixed findings. The purpose of this study was to use the meta-analytic approach to examine the association between NEP use and HCV prevention in PWIDs. METHODS: Study inclusion criteria were (1) observational studies, (2) PWIDs, (3) NEP use, (4) HCV status ascertained by serological testing, (5) studies published in any language since January 1, 1989, and (6) data available for measures of association...
May 17, 2017: Harm Reduction Journal
https://www.readbyqxmd.com/read/28507928/the-role-of-direct-acting-antivirals-in-the-treatment-of-children-with-chronic-hepatitis-c
#5
REVIEW
Christine Hong Ting Yang, Eric R Yoo, Aijaz Ahmed
In the United States, chronic infection with the hepatitis C virus (HCV) affects an estimated 0.1-2% of the pediatric population, who are consequently at risk for major complications, including cirrhosis, hepatocellular carcinoma, and death. The current standard of treatment for chronic hepatitis C (CHC) in children is pegylated-interferon-alpha (PEG-IFN) in combination with ribavirin. PEG-IFN/ribavirin therapy is approved for children ages 3 and older; however, it is often held from use until adulthood because of its extensive list of potential side effects and high likelihood of causing adverse symptoms...
March 28, 2017: Journal of Clinical and Translational Hepatology
https://www.readbyqxmd.com/read/28507926/decrease-of-alpha-fetoprotein-in-patients-with-cirrhosis-treated-with-direct-acting-antivirals
#6
Kelvin Nguyen, Melissa Jimenez, Nima Moghadam, Crystal Wu, Alex Farid, Jonathan Grotts, David Elashoff, Gina Choi, Francisco A Durazo, Mohamed M El-Kabany, Steven-Huy B Han, Sammy Saab
Background and Aims: The lack of specificity has limited the role of serum alpha-fetoprotein (AFP) for hepatocellular carcinoma (HCC) screening among patients with cirrhosis related to hepatitis C virus (HCV) infection. We sought to examine whether AFP may decrease after achieving a sustained virological response (SVR) in patients with HCV-related cirrhosis. Methods: We performed a retrospective study of patients with HCV-related cirrhosis who were cured with direct-acting antiviral (DAA) therapy at the University of California, Los Angeles...
March 28, 2017: Journal of Clinical and Translational Hepatology
https://www.readbyqxmd.com/read/28506246/vipie-web-pipeline-for-parallel-characterization-of-viral-populations-from-multiple-ngs-samples
#7
Jake Lin, Lenka Kramna, Reija Autio, Heikki Hyöty, Matti Nykter, Ondrej Cinek
BACKGROUND: Next generation sequencing (NGS) technology allows laboratories to investigate virome composition in clinical and environmental samples in a culture-independent way. There is a need for bioinformatic tools capable of parallel processing of virome sequencing data by exactly identical methods: this is especially important in studies of multifactorial diseases, or in parallel comparison of laboratory protocols. RESULTS: We have developed a web-based application allowing direct upload of sequences from multiple virome samples using custom parameters...
May 15, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28504002/development-and-evaluation-of-a-novel-score-for-prediction-of-large-oesophageal-varices-in-patients-with-hepatitis-c-virus-induced-liver-cirrhosis
#8
K Farid, M M Omran, R E Farag, M M Arafa, T M Emran
OBJECTIVE: Variceal bleeding is one of the most common life-threatening complications of liver cirrhosis. This study aimed to develop and evaluate a predictive score, named Platelet count, Alpha fetoprotein (AFP) and Prothrombin-INR (PAP) for the prediction of large oesophageal varices and to compare PAP score with eight common liver fibrosis scores (AAR, APRI, GUCI, BRC score, Fibro-Alfa, FIB4, Lok and Fibro-Q) in patients with hepatitis C virus (HCV) induced liver cirrhosis. METHODS: A total of 277 patients with HCV-induced liver cirrhosis were evaluated by upper gastrointestinal endoscopy for presence of varices...
May 15, 2017: British Journal of Biomedical Science
https://www.readbyqxmd.com/read/28503168/generation-and-comprehensive-analysis-of-host-cell-interactome-of-the-pa-protein-of-the-highly-pathogenic-h5n1-avian-influenza-virus-in-mammalian-cells
#9
Zhao Gao, Jiao Hu, Yanyan Liang, Qian Yang, Kun Yan, Dong Liu, Xiaoquan Wang, Min Gu, Xiaowen Liu, Shunlin Hu, Zenglei Hu, Huimou Liu, Wenbo Liu, Sujuan Chen, Daxin Peng, Xin-An Jiao, Xiufan Liu
Accumulating data have identified the important roles of PA protein in replication and pathogenicity of influenza A virus (IAV). Identification of host factors that interact with the PA protein may accelerate our understanding of IAV pathogenesis. In this study, using immunoprecipitation assay combined with liquid chromatography-tandem mass spectrometry, we identified 278 human cellular proteins that might interact with PA of H5N1 IAV. Gene Ontology annotation revealed that the identified proteins are highly associated with viral translation and replication...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28502830/with-me-or-against-me-tumour-suppressor-and-drug-resistance-activities-of-samhd1
#10
REVIEW
Nikolas Herold, Sean G Rudd, Kumar Sanjiv, Juliane Kutzner, Ida Hed Myrberg, Cynthia B J Paulin, Thale Kristin Olsen, Thomas Helleday, Jan-Inge Henter, Torsten Schaller
Sterile alpha motif and histidine/aspartic acid domain-containing protein 1 (SAMHD1) is a (deoxy)guanosine triphosphate (dGTP/GTP)-activated deoxyribonucleoside triphosphate (dNTP) triphosphohydrolase that is involved in cellular dNTP homoeostasis. Mutations in SAMHD1 have been associated with the hyperinflammatory disease Aicardi-Goutières syndrome (AGS). SAMHD1 also limits the permissivity of cells to infection with diverse viruses including human immunodeficiency virus (HIV-1) and controls endogenous retroviruses...
May 11, 2017: Experimental Hematology
https://www.readbyqxmd.com/read/28502443/hepatitis-b-and-c
#11
REVIEW
Wikrom Karnsakul, Kathleen B Schwarz
Chronic viral hepatitis is a global health threat and financial burden. Hepatitis B and C viruses (HBV and HCV) are the most common causes of chronic viral hepatitis in the United States. Most cases are asymptomatic before adulthood. Research has resulted in effective therapy for HCV and the promise of effective therapies for HBV. For HCV, therapy is pegylated interferon and ribavirin. Clinical trials with effective direct-acting antiviral agents are underway in pediatrics. For HBV, approved agents are alpha-interferon, lamivudine, adefovir, tenofovir, and entecavir...
June 2017: Pediatric Clinics of North America
https://www.readbyqxmd.com/read/28496530/assessment-of-the-relation-between-snp-in-mxa-gene-and-the-responsiveness-of-egyptian-hcv-genotype-4-patients-to-pegylated-interferon-and-ribavirin-treatment
#12
Mohamed Hassany, Amany Gamal, Nashwa Zaki, Basem Eysa
BACKGROUND: Pegylated interferon (PegIFN) is used in the treatment of chronic hepatitis C virus (HCV) patients especially in resource limited countries. Treatment with PegIFN stimulates the expression of a number of host genes encoding enzymes with antiviral activities, including myxovirus resistance gene-A (MxA gene). MxA gene was found to have a single nucleotide polymorphism (SNP) at position -88 in the promoter region that affects the expression of MxA gene protein and was suggested to affect the treatment outcome...
April 2017: Gastroenterology Research
https://www.readbyqxmd.com/read/28495402/associations-of-tumor-necrosis-factor-%C3%AE-308-polymorphism-with-dengue-infection-a-systematic-review-and-meta-analysis
#13
REVIEW
Noel Pabalan, Suwit Chaisri, Sompong Tabunhan, Mayuri Tarasuk, Hamdi Jarjanazi, Theodore Steiner
Inconsistency of reported associations between the tumor necrosis factor-alpha-308 (TNFα-308) polymorphism (rs1800629) and dengue virus infection prompted a meta-analysis, to obtain more precise estimates. A literature search yielded 14 case-control studies. We calculated pooled odds ratios (OR) and 95% confidence intervals in three groups according to severity, dengue fever (DF), dengue hemorrhagic fever (DHF) and dengue (DEN) using standard genetic models. Pooled ORs were subjected to modifier treatment where re-analysis was confined to Hardy-Weinberg compliant (HWC) studies...
May 8, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28494927/comparison-of-interferon-and-bovine-herpesvirus-1-specific-iga-levels-in-nasal-secretions-of-dairy-cattle-administered-an-intranasal-modified-live-viral-vaccine-prior-to-calving-or-on-the-day-of-calving
#14
Victor S Cortese, Amelia Woolums, David J Hurley, Roy Berghaus, John K Bernard, Thomas H Short
Thirty-two Holstein cows were allocated to receive intranasal vaccination with modified live bovine herpesvirus-1 (BHV-1), bovine respiratory syncytial virus (BRSV) and parainfluenza type 3 virus (PI3V) vaccine either two weeks prior to their projected calving date, or within 24h after calving. Nasal secretions were collected twice at a 12-h interval on the day prior to vaccination (day 0) and at 2, 4, 7, 10 and 14days post vaccination to measure interferon (IFN) alpha, IFN-beta, IFN-gamma, and BHV-1-specific IgA by ELISA...
May 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/28492391/hepatitis-c-virus-drives-increased-type-i-interferon-associated-impairments-associated-with-fibrosis-severity-in-antiretroviral-treatment-treated-hiv-1-hepatitis-c-virus-coinfected-individuals
#15
Morgane Griesbeck, Marc-Antoine Valantin, Karine Lacombe, Assia Samri-Hassimi, Julie Bottero, Catherine Blanc, Zineb Sbihi, Rima Zoorob, Christine Katlama, Marguerite Guiguet, Marcus Altfeld, Brigitte Autran
BACKGROUND: Viral coinfections might contribute to the increased immune activation and inflammation that persist in antiretroviral treatment (ART)-treated HIV-1 patients. We investigated whether the hepatitis C virus (HCV) coinfection contributes to such alterations by impairing the plasmacytoid dendritic cell (pDC) IFNα/TLR7 pathway in a highly homogeneous group of ART-treated HIV-1-HCV-coinfected patients. METHODS: Twenty-nine HIV-1-infected patients with fully suppressive ART were included, 15 of whom being HCV-coinfected with mild-to-moderate fibrosis and matched for their HIV-1 disease, and 13 control healthy donors...
June 1, 2017: AIDS
https://www.readbyqxmd.com/read/28486838/brain-microglial-cells-are-highly-susceptible-to-hiv-1-infection-and-spread
#16
Jennifer J Cenker, Ryan D Stultz, David McDonald
Macrophages are a target of HIV-1 infection and may serve as an important reservoir of the virus in the body, particularly after depletion of CD4+ T cells in HIV/AIDS. Recently, sterile alpha motif and histidine/aspartic acid domain-containing protein 1 (SAMHD1) was identified as the major restriction factor of HIV-1 infection in myeloid cells. SAMHD1 is targeted for proteolytic degradation by Vpx, a viral protein encoded by HIV-2 and many SIVs but not HIV-1. In this study, we assessed SAMHD1 restriction in in vitro differentiated macrophages and in freshly isolated macrophages from the lungs, abdomen, and brain...
May 9, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/28484702/expression-dynamics-of-innate-immunity-in-influenza-virus-infected-swine
#17
María Montoya, Emanuela Foni, Alicia Solórzano, Elisabetta Razzuoli, Massimiliano Baratelli, Dania Bilato, Lorena Córdoba, Maria Angeles Martín Del Burgo, Jorge Martinez, Pamela Martinez-Orellana, Chiara Chiapponi, David S Perlin, Gustavo Del Real, Massimo Amadori
The current circulating swine influenza virus (IV) subtypes in Europe (H1N1, H1N2, and H3N2) are associated with clinical outbreaks of disease. However, we showed that pigs could be susceptible to other IV strains that are able to cross the species barrier. In this work, we extended our investigations into whether different IV strains able to cross the species barrier might give rise to different innate immune responses that could be associated with pathological lesions. For this purpose, we used the same samples collected in a previous study of ours, in which healthy pigs had been infected with a H3N2 Swine IV and four different H3N8 IV strains circulating in different animal species...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28477380/antibodies-against-h1n1-influenza-virus-cross-react-with-alpha-cells-of-pancreatic-islets
#18
Zongli Qi, Hanyu Hu, Zhihua Wang, Guanghua Wang, Yan Li, Xiangrong Zhao, Yangmeng Feng, Xueping Huo, Jingying Sun, Qing Feng, Yang Liu, Nana Wang, Chunyan Guo, Yuan Li, Ruian Wang, Jun Hu
Epidemiological studies have documented that the incidence of human type 1 diabetes (T1D) is significantly increased after H1N1 epidemic. However, direct link between T1D and virus infection remains elusive. We generated 84 clones of murine mAbs against the H1N1 and performed immunohistochemistry in normal human tissue microarray. The results demonstrated that two clones specifically cross-reacted with human pancreatic tissues α cell of pancreatic islet. RT-PCR and DNA sequencing showed that the amino acid sequences of light and heavy chains of these clones were different...
May 6, 2017: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/28475945/emerging-concepts-for-the-treatment-of-hepatitis-delta
#19
REVIEW
Menashe Elazar, Jeffrey S Glenn
Hepatitis delta virus (HDV) causes the most severe form of human viral hepatitis and is associated with a higher risk of cirrhosis, liver decompensation and liver cancer. Interferon alpha is the only agent that has demonstrated efficacy to date, although response rates are low and it is associated with significant side effects. A better understanding of the relevant molecular virology has resulted in the identification of new candidate targets. Future therapeutic options are rapidly evolving as several new agents have entered clinical development, including the entry inhibitor myrcludex-B, the nucleic acid polymer REP2139-Ca inhibiting HBV surface antigen secretion, the farnesyltransferase inhibitor lonafarnib that targets virus assembly, and a better tolerated interferon-interferon lambda...
May 2, 2017: Current Opinion in Virology
https://www.readbyqxmd.com/read/28475031/pathogenicity-evaluation-of-twelve-west-nile-virus-strains-belonging-to-four-lineages-from-five-continents-in-a-mouse-model-discrimination-between-three-pathogenicity-categories
#20
Elisa Pérez-Ramírez, Francisco Llorente, Javier Del Amo, Gamou Fall, Amadou Alpha Sall, Alison Lubisi, Sylvie Lecollinet, Ana Vázquez, Miguel Ángel Jiménez-Clavero
Rodent models have been used extensively to study West Nile virus (WNV) infection because they develop severe neurological symptoms similar to those observed in human WNV neuroinvasive disease. Most of this research has focused on old lineage (L) 1 strains, while information about pathogenicity is lacking for the most recent L1 and L2 strains, as well as for newly defined lineages. In this study, 4-week-old Swiss mice were inoculated with a collection of 12 WNV isolates, comprising 10 old and recent L1 and L2 strains, the putative L6 strain from Malaysia and the proposed L7 strain Koutango (KOU)...
April 2017: Journal of General Virology
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