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https://www.readbyqxmd.com/read/29228501/hcv-clearance-by-direct-acting-antiviral-treatments-reverses-insulin-resistance-in-chronic-hepatitis-c-patients
#1
Luigi E Adinolfi, Riccardo Nevola, Barbara Guerrera, Giovanni D'Alterio, Aldo Marrone, Mauro Giordano, Luca Rinaldi
BACKGROUND AND AIM: Chronic hepatitis C (HCV), particularly genotype 1, is associated with insulin resistance (IR) and diabetes. We evaluated the impact of HCV clearance by all-oral direct-acting antiviral (DAAs) treatments on IR and glycemic control. METHODS: Included in this prospective case-control study were 133 consecutive HCV-genotype 1 patients with advance liver fibrosis (F3-F4) without type 2 diabetes. Sixty-eight treated with DAAs and 65 untreated. Liver fibrosis was assessed by transient elastography...
December 11, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29228221/oncogenic-potential-of-hepatitis-b-virus-subgenotype-d1-surpasses-d3-significance-in-the-development-of-hepatocellular-carcinoma
#2
Somenath Datta, Debanjali Dasgupta, Alip Ghosh, Suchandrima Ghosh, Alak Manna, Simanti Datta, Mitali Chatterjee, Abhijit Chowdhury, Soma Banerjee
Despite widespread distribution of HBV-genotype D, the clinical implications of its 9 subgenotypes (D1-D9) have not been well documented. Here, we have investigated the impact of two major circulating HBV/D-subgenotypes, D1 and D3 in Eastern India towards pathogenesis of liver disease progression to hepatocellular carcinoma (HCC). HBV-subgenotypes were determined using full-length genome sequences of HBV isolates from patients with chronic hepatitis B (CHB), liver cirrhosis (LC) and HCC. Impact of D1 and D3 on viral lifecycle and disease progression was assessed by several invitro assays...
December 8, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/29226104/hepatitis-e-a-literature-review
#3
REVIEW
Juliana Ayres de Alencar Arrais Guerra, Katia Cristina Kampa, Daphne Gonçalves Benatti Morsoletto, Alcindo Pissaia Junior, Cláudia Alexandra Pontes Ivantes
Hepatitis E is the fifth known form of human viral hepatitis. Although not very common in our clinical practice, the incidence in Western countries is increasing. Infection with the hepatitis E virus (HEV) may be related to acute illness, liver failure, chronic hepatitis and cirrhosis. HEV itself is an RNA virus, with eight described genotypes (HEV 1-8), four of which more commonly affect humans and have, thus, been better studied. Besides liver manifestations, genotype 3 is also related to extra-hepatic manifestations, such as neurological, renal and rheumatological...
December 28, 2017: Journal of Clinical and Translational Hepatology
https://www.readbyqxmd.com/read/29225923/experimental-adaptation-of-human-echovirus-11-to-ultraviolet-radiation-leads-to-resistance-to-disinfection-and-ribavirin
#4
Anna Carratalà, Hyunjin Shim, Qingxia Zhong, Virginie Bachmann, Jeffrey D Jensen, Tamar Kohn
Ultraviolet light in the UVC range is a commonly used disinfectant to control viruses in clinical settings and water treatment. However, it is currently unknown whether human viral pathogens may develop resistance to such stressor. Here, we investigate the adaptation of an enteric pathogen, human echovirus 11, to disinfection by UVC, and characterized the underlying phenotypic and genotypic changes. Repeated exposure to UVC lead to a reduction in the UVC inactivation rate of approximately 15 per cent compared to that of the wild-type and the control populations...
July 2017: Virus Evolution
https://www.readbyqxmd.com/read/29220079/hepatitis-c-virus-genotyping-of-organ-donor-samples-to-aid-in-transplantation-of-hcv-positive-organs
#5
Caren Gentile, Vivianna M Van Deerlin, David S Goldberg, Peter P Reese, Richard D Hasz, Peter Abt, Emily Blumberg, Midhat S Farooqi
Given the availability of new highly efficacious anti-HCV therapies, some clinicians have advocated for wider use of kidneys from hepatitis C virus-positive (HCV+) donors, including transplanting them into HCV-negative recipients. Since treatment regimens for HCV are commonly guided by genotype, pre-transplant HCV genotyping of tissue donors would be beneficial. To our knowledge, donor HCV genotyping has never been reported. We retrieved archived frozen plasma samples for 17 previous organ donors through a local organ procurement organization...
December 8, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/29218494/efficacy-of-pulsed-dye-laser-treatment-for-common-warts-is-not-influenced-by-the-causative-hpv-type-a-prospective-study
#6
Yoseph Fichman, Assi Levi, Emmilia Hodak, Shlomit Halachmi, Sigal Mazor, Dana Wolf, Orit Caplan, Moshe Lapidoth
Verruca vulgaris (VV) is a prevalent skin condition caused by various subtypes of human papilloma virus (HPV). The most common causes of non-genital lesions are HPV types 2 and 4, and to a lesser extent types 1, 3, 26, 29, and 57. Although numerous therapeutic modalities exist, none is universally effective or without adverse events (AE). Pulsed dye laser (PDL) is a favorable option due to its observed efficacy and relatively low AE rate. However, it is not known which verrucae are most likely to respond to PDL, or whether the causative viral subtype influences this response...
December 7, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/29216251/molecular-characterization-of-hepatitis-b-virus-in-bangladesh-reveals-a-highly-recombinant-population
#7
Saif Ullah Munshi, Thanh Thi Thanh Tran, Truc Nhu Thanh Vo, Shahina Tabassum, Nahida Sultana, Trang Hoa Nguyen, Munira Jahan, Chau Ngoc Le, Stephen Baker, Motiur Rahman
The natural history and treatment outcome of hepatitis B viruses (HBV) infection is largely dependent on genotype, subgenotype, and the presence or absence of virulence associated mutations. We have studied the prevalence of genotype and subgenotype as well as virulence and drug resistance associated mutations and prevalence of recombinant among HBV from Bangladesh. A prospective cross-sectional study was conducted among treatment naïve chronic HBV patients attending at Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh for HBV viral load assessment between June and August 2015...
2017: PloS One
https://www.readbyqxmd.com/read/29214737/efficacy-safety-and-patient-reported-outcomes-of-ledipasvir-sofosbuvir-in-ns3-4a-protease-inhibitor-experienced-individuals-with-hepatitis-c-virus-genotype-1-and-hiv-coinfection-with-and-without-cirrhosis-anrs-hc31-softrih-study
#8
E Rosenthal, C Fougerou-Leurent, A Renault, M P Carrieri, F Marcellin, R Garraffo, E Teicher, H Aumaitre, K Lacombe, F Bailly, E Billaud, S Chevaliez, S Dominguez, M A Valantin, J Reynes, A Naqvi, L Cotte, S Metivier, V Leroy, M Dupon, T Allegre, P De Truchis, V Jeantils, J Chas, D Salmon-Ceron, P Morlat, D Neau, P Perré, L Piroth, S Pol, M Bourlière, G P Pageaux, L Alric, D Zucman, P M Girard, I Poizot-Martin, Y Yazdanpanah, F Raffi, E Le Pabic, C Tual, A Pailhé, I Amri, E Bellissant, J M Molina
OBJECTIVES: Studies evaluating the efficacy and safety of the fixed-dose combination ledipasvir (LDV)/sofosbuvir (SOF) in patients coinfected with HIV-1 and hepatitis C virus (HCV) have mainly included treatment-naïve patients without cirrhosis. We aimed to evaluate the efficacy and safety of this combination in treatment-experienced patients with and without cirrhosis. METHODS: We conducted a multicentre, open-label, double-arm, nonrandomized study in patients coinfected with HIV-1 and HCV genotype 1 with and without cirrhosis, who had good viral suppression on their antiretroviral regimens...
December 7, 2017: HIV Medicine
https://www.readbyqxmd.com/read/29212938/subcellular-localization-and-functional-characterization-of-gii-4-norovirus-encoded-ntpase
#9
Ju-Bei Yen, Ling-Huei Wei, Lee-Wen Chen, Li-Yu Chen, Chien-Hui Hung, Shie-Shan Wang, Pey-Jium Chang
The genotype GII.4 variants of human noroviruses (HuNVs) are recognized as the major agent of global gastroenteritis outbreaks. Due to the lack of an efficient cell culture system for HuNV propagation, the exact roles of HuNV-encoded non-structural proteins (including Nterm, NTPase, P22, VPg, Pro and RdRp) in viral replication or pathogenesis have not yet been fully understood. Here, we report the molecular characterization of the GII.4 HuNV-encoded NTPase (or designated as GII-NTPase). Results from our studies showed that GII-NTPase forms vesicular or non-vesicular textures in the cell cytoplasm, and the non-vesicular fraction of GII-NTPase significantly localizes to the endoplasmic reticulum (ER) or mitochondria...
December 6, 2017: Journal of Virology
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
#10
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)...
December 8, 2017: Gut and Liver
https://www.readbyqxmd.com/read/29211874/prevalence-incidence-and-clearance-of-anal-high-risk-human-papillomavirus-hpv-infection-among-hiv-infected-men-in-the-sun-study
#11
Pragna Patel, Tim Bush, Erna Milunka Kojic, Lois Conley, Elizabeth R Unger, Teresa M Darragh, Keith Henry, John Hammer, Gerome Escota, Joel M Palefsky, John T Brooks
Background: The natural history of anal HPV infection among HIV-infected men is unknown. Methods: We collected anal swabs for cytology, HPV detection, and genotyping at annual visits from 2004-2012. We examined baseline prevalence, incidence and clearance of anal HPV infection at 48 months, and associated factors among HIV-infected men. Results: We examined 403 men who have sex with men (MSM) and 96 men who have sex with women (MSW) (median age 42 years for both, 87 vs...
December 4, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29210660/host-factors-predictors-in-long-term-nonprogressors-hiv-1-infected-with-distinct-viral-clades
#12
J S Santos, S M Almeida, G F Silveira, J Bordignon, S Lm Teixeira, Acm Lima, S M Raboni
BACKGROUND: HIV-1+ long-term non-progressors (LTNPs) maintain natural control of viral infection. This study sought to identify and characterize HIV- LTNPs series case, regarding the presence of possible host factors that may be associated with this status. METHODS: We evaluated the plasma levels of IP-10/IL-8 chemokines, HLA-B alleles, and IL28B rs12979860 polymorphism in 24 LTNPs who presented with infection by different clades of HIV-1. RESULTS: IL-8 chemokine was significantly higher in progressors than in LTNPs, but there was no difference between the LTNP subgroups...
December 6, 2017: Current HIV Research
https://www.readbyqxmd.com/read/29209131/dramatic-response-of-hepatitis-c-patients-chronically-infected-with-hepatitis-c-virus-genotype-3-to-sofosbuvir-based-therapies-in-punjab-pakistan-a-prospective-study
#13
Sajjad Iqbal, Muhammad Haroon Yousuf, Muhammad Iftikhar Yousaf
AIM: To prospectively evaluate the efficacy of sofobuvir (SOF) in hepatitis C patients infected with hepatitis C virus (HCV) genotype 3 in Pakistan. METHODS: The present study was performed with the coordination of gastroenterology and pathology departments of Shalamar Hospital Lahore from August 2014 to May 2016. The total number of patients included in this study was 1375 and all of them were infected with HCV genotype 3. On the basis of drug combinations, all the patients were separated into two groups...
November 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29207506/longitudinal-surveillance-of-porcine-rotavirus-b-strains-from-the-united-states-and-canada-and-in-silico-identification-of-antigenically-important-sites
#14
Frances K Shepherd, Michael P Murtaugh, Fangzhou Chen, Marie R Culhane, Douglas G Marthaler
Rotavirus B (RVB) is an important swine pathogen, but control and prevention strategies are limited without an available vaccine. To develop a subunit RVB vaccine with maximal effect, we characterized the amino acid sequence variability and predicted antigenicity of RVB viral protein 7 (VP7), a major neutralizing antibody target, from clinically infected pigs in the United States and Canada. We identified genotype-specific antigenic sites that may be antibody neutralization targets. While some antigenic sites had high amino acid functional group diversity, nine antigenic sites were completely conserved...
December 3, 2017: Pathogens
https://www.readbyqxmd.com/read/29205432/sofosbuvir-and-daclatasvir-therapy-in-patients-with-hepatitis-c-related-advanced-decompensated-liver-disease-meld-%C3%A2-15
#15
G W McCaughan, P A Thwaites, S K Roberts, S I Strasser, J Mitchell, B Morales, S Mason, P Gow, A Wigg, C Tallis, G Jeffrey, J George, A J Thompson, F C Parker, P W Angus
BACKGROUND: Antiviral therapy for hepatitis C has the potential to improve liver function in patients with decompensated cirrhosis. AIMS: To examine the virological response and effect of viral clearance in patients with decompensated hepatitis C cirrhosis all with MELD scores ≥15 following sofosbuvir/daclatasvir ± ribavirin. METHODS: We prospectively collected data on patients who commenced sofosbuvir/daclatasvir for 24-weeks under the Australian patient supply program (TOSCAR) and analysed outcomes including sustained viral response at 12 weeks (SVR12), death and transplant...
December 5, 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29205402/detection-and-molecular-characterization-of-betanodaviruses-retrieved-from-bivalve-molluscs
#16
E Volpe, M Grodzki, V Panzarin, A Guercio, G Purpari, P Serratore, S Ciulli
Betanodaviruses are small ssRNA viruses responsible for viral encephalopathy and retinopathy, otherwise known as viral nervous necrosis, in marine fish worldwide. These viruses can be either horizontally or vertically transmitted and have been sporadically detected in invertebrates, which seem to be one of the possible viral sources. Twenty-eight new betanodavirus strains were retrieved in three molluscs species collected from different European countries between 2008 and 2015. The phylogenetic analyses revealed that strains retrieved from bivalve molluscs are closely related to viruses detected in finfish in Southern Europe in the period 2000-2009...
December 5, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/29203182/the-generation-of-a-simian-adenoviral-vectored-hcv-vaccine-encoding-genetically-conserved-gene-segments-to-target-multiple-hcv-genotypes
#17
Annette von Delft, Timothy A Donnison, José Lourenço, Claire Hutchings, Caitlin E Mullarkey, Anthony Brown, Oliver G Pybus, Paul Klenerman, Senthil Chinnakannan, Eleanor Barnes
BACKGROUND: Hepatitis C virus (HCV) genomic variability is a major challenge to the generation of a prophylactic vaccine. We have previously shown that HCV specific T-cell responses induced by a potent T-cell vaccine encoding a single strain subtype-1b immunogen target epitopes dominant in natural infection. However, corresponding viral regions are highly variable at a population level, with a reduction in T-cell reactivity to these variants. We therefore designed and manufactured second generation simian adenovirus vaccines encoding genomic segments, conserved between viral genotypes and assessed these for immunogenicity...
December 1, 2017: Vaccine
https://www.readbyqxmd.com/read/29202874/sensitive-detection-of-hiv-1-resistance-to-zidovudine-and-impact-on-treatment-outcomes-in-low-to-middle-income-countries
#18
Richard M Gibson, Gabrielle Nickel, Michael Crawford, Fred Kyeyune, Colin Venner, Immaculate Nankya, Eva Nabulime, Emmanuel Ndashimye, Art F Y Poon, Robert A Salata, Cissy Kityo, Peter Mugyenyi, Miguel E Quiñones-Mateu, Eric J Arts
BACKGROUND: Thymidine analogs, namely AZT (Zidovudine or Retrovir™) and d4T (Stavudine or Zerit™) are antiretroviral drugs still employed in over 75% of first line combination antiretroviral therapy (cART) in Kampala, Uganda despite aversion to prescribing these drugs for cART in high income countries due in part to adverse events. For this study, we explored how the continued use of these thymidine analogs in cART could impact emergence of drug resistance and impact on future treatment success in Uganda, a low-income country...
December 4, 2017: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/29201768/prediction-of-sustained-virological-response-to-peginterferon-based-therapy-for-chronic-hepatitis-c-regression-analysis-of-a-cohort-from-rio-grande-do-sul-brazil
#19
Rafael V Picon, Lúcia Fendt, Karine Amaral, Paulo D Picon
Aim: Peginterferon plus ribavirin (peg-IFN/RBV) is still the standard of care for treatment of hepatitis C virus (HCV) in many countries. Given the high toxicity of this regimen, our study aimed to develop a prediction tool that can identify which patients are unlikely to benefit from peg-IFN/RBV and could thus postpone treatment in favor of new-generation direct-acting antivirals. Materials and methods: Binary regression was performed using demographic, clinical, and laboratory covariates and sustained virological response (SVR) outcomes from a prospective cohort of individuals referred for therapy from 2003 to 2008 in a public HCV treatment center in Rio Grande do Sul, Brazil...
January 2017: Euroasian Journal of Hepato-Gastroenterology
https://www.readbyqxmd.com/read/29197859/evaluation-of-the-aptima-hbv-quant-assay-vs-the-cobas-taqman-hbv-test-using-the-high-pure-system-for-the-quantitation-of-hbv-dna-in-plasma-and-serum-samples
#20
Gunnar Schalasta, Anna Börner, Andrea Speicher, Martin Enders
BACKGROUND: Proper management of patients with chronic hepatitis B virus (HBV) infection requires monitoring of plasma or serum HBV DNA levels using a highly sensitive nucleic acid amplification test. Because commercially available assays differ in performance, we compared herein the performance of the Hologic Aptima HBV Quant assay (Aptima) to that of the Roche Cobas TaqMan HBV test for use with the high pure system (HPS/CTM). METHODS: Assay performance was assessed using HBV reference panels as well as plasma and serum samples from chronically HBV-infected patients...
December 4, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
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