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Hepatitis E virus

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https://www.readbyqxmd.com/read/28651399/-immune-response-to-one-booster-dose-of-inactivated-hepatitis-a-vaccine-in-college-students
#1
Z Liao, X W Feng, X E Liu, Y S Zhou, H R Wen, S H Peng, Y X Zhang, B Xu, H Zhuang, H Y Chen
Objective: To evaluate the safety and immunogenicity of one booster dose of inactivated hepatitis A vaccine in young adults. Methods: The subjects were selected from participants in the clinical trial of immunogenicity of inactivated and attenuated live hepatitis A vaccine in young adults. Eligible subjects were those who had received one dose of inactivated or attenuated hepatitis A vaccine, could be contacted and were sero-negative before primary vaccination. All qualified subjects were immunized with one booster dose of inactivated hepatitis A vaccine...
May 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28650982/seroprevalence-and-risk-factors-of-hepatitis-e-virus-infection-among-pregnant-women-in-addis-ababa-ethiopia
#2
Meseret Abebe, Ibrahim Ali, Samuel Ayele, Johakim Overbo, Abraham Aseffa, Adane Mihret
BACKGROUND: Hepatitis E virus (HEV) is highly endemic in several African countries with high mortality rate among pregnant women. The prevalence of antibodies to HEV in Ethiopian pregnant women is not known. The study was conducted to investigate the prevalence of anti-HEV IgG and anti-HEV IgM among pregnant women. MATERIAL AND METHODS: A total of 386 serum samples were collected from pregnant women between April 2014 to January 2015 in Gandhi Memorial Hospital and four selected Health centers in Addis Ababa, Ethiopia...
2017: PloS One
https://www.readbyqxmd.com/read/28650400/high-need-to-switch-cart-or-co-medication-with-the-initiation-of-daas-in-elderly-hiv-hcv-co-infected-patients
#3
Elise J Smolders, Colette Smit, Clara Tmm De Kanter, Anton Dofferhoff, Joop E Arends, Kees Brinkman, Bart Rijnders, Marc Van Der Valk, Peter Reiss, David M Burger
BACKGROUD: To describe the use of non-antiretroviral co-medication and combination antiretroviral therapy (cART) in HIV/hepatitis C virus (HCV) co-infected patients, and to predict the potential for drug-drug interactions (DDIs) with direct-acting antivirals (DAAs) against HCV. METHODS: This is a retrospective, cross-sectional study, using the Dutch nationwide ATHENA observational HIV cohort database. All patients with a known HIV/HCV co-infection on 1 January 2015 were included...
June 22, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28647707/hepatitis-e-virus-and-neurological-disorders
#4
REVIEW
Brendan N Mclean, James Gulliver, Harry R Dalton
Hepatitis E is the most common cause of hepatitis worldwide. While originally considered a disease of developing countries, it is increasingly recognised in developed countries, probably related to contaminated pork meat, and where infection is often asymptomatic. However, several non-liver manifestations have become apparent, the most important of which are neurological, including Guillain-Barré syndrome (acute inflammatory demyelinating polyradiculoneuropathy (AIDP)), neuralgic amyotrophy and meningoencephalitis...
June 24, 2017: Practical Neurology
https://www.readbyqxmd.com/read/28646670/a-metagenomic-assessment-of-viral-contamination-on-fresh-parsley-plants-irrigated-with-fecally-tainted-river-water
#5
X Fernandez-Cassi, N Timoneda, E Gonzales-Gustavson, J F Abril, S Bofill-Mas, R Girones
Microbial food-borne diseases are still frequently reported despite the implementation of microbial quality legislation to improve food safety. Among all the microbial agents, viruses are the most important causative agents of food-borne outbreaks. The development and application of a new generation of sequencing techniques to test for viral contaminants in fresh produce is an unexplored field that allows for the study of the viral populations that might be transmitted by the fecal-oral route through the consumption of contaminated food...
June 21, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28645740/safety-of-the-2d-3d-direct-acting-antiviral-regimen-in-hcv-induced-child-pugh-a-cirrhosis-a-pooled-analysis
#6
Fred Poordad, David R Nelson, Jordan J Feld, Michael W Fried, Heiner Wedemeyer, Lois Larsen, Daniel E Cohen, Eric Cohen, Niloufar Mobashery, Fernando Tatsch, Graham R Foster
BACKGROUND & AIMS: Chronic hepatitis C virus (HCV)-infected patients with cirrhosis are a high-priority population for treatment. To help inform the benefit-risk profile of the all-oral direct-acting antiviral (DAA) combination regimen of ombitasvir, paritaprevir, and ritonavir, with or without dasabuvir (OBV/PTV/r ± DSV) in patients with Child-Pugh A cirrhosis, we undertook a comprehensive review of AbbVie-sponsored clinical trials enrolling patients with Child-Pugh A cirrhosis. METHODS: Twelve phase II or III clinical trials of the 2-DAA regimen of OBV/PTV/r ± ribavirin (RBV) or the 3-DAA regimen of OBV/PTV/r + DSV ± RBV that included patients with Child-Pugh A cirrhosis were reviewed; patients who completed treatment by November 16, 2015 were included in a pooled, post hoc safety assessment...
June 20, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28644966/an-immunosuppressive-function-of-interleukin-35-in-chronic-hepatitis-c-virus-infection
#7
Siqi Liu, Qian Zhang, Xue Shao, Wenrui Wang, Chuanhui Zhang, Zhenjing Jin
Interleukin (IL)-35, a newly identified member of the IL-12 cytokine family, has been reported to suppress inflammation and induce immunotolerance. However, little is known regarding the role of IL-35 during chronic hepatitis C virus (HCV) infection. Herein, we measured the serum IL-35 concentration of 73 patients with hepatitis C and 22 healthy individuals, as well as further investigated the modulatory function of IL-35 on CD4(+)CD25(+)CD127(dim/-) regulatory T cells (Tregs) and on hepatocytes infected with HCV in cell culture (HCVcc)...
June 20, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28642978/ectopic-delivery-of-mir-200c-diminishes-hepatitis-c-virus-infectivity-through-transcriptional-and-translational-repression-of-occludin
#8
Dalia S Elhelw, Sarah E Riad, Heba Shawer, Nada El-Ekiaby, Ayman Salah, Abdelrahman Zekri, Asma Amleh, Gamal Esmat, Ahmed Ihab Abdelaziz
Occludin (OCLN) is an essential factor for HCV entry through interacting with other surface receptors. The aim of this study was to investigate the epigenetic regulation of Occludin expression and to study its impact on viral infectivity. microRNAs expression was assessed using qRT-PCR, while OCLN protein expression was investigated by indirect immunofluorescence and Western blotting. Viral infectivity was assessed by measuring viral-load using qRT-PCR. In silico analysis predicted that miR-200c targeted the OCLN 3'UTR, which was further experimentally confirmed...
June 22, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28642818/nivolumab-as-salvage-treatment-in-a-patient-with-hiv-related-relapsed-refractory-hodgkin-lymphoma-and-liver-failure-with-encephalopathy
#9
Jose D Sandoval-Sus, Francis Mogollon-Duffo, Ankita Patel, Nathan Visweshwar, Damian A Laber, Richard Kim, Michael V Jagal
BACKGROUND: We report the first case to our knowledge of a patient with relapsed/refractory classical hodgkin lymphoma and liver failure with encephalopathy along with human immunodeficiency virus/acquired immunodeficiency syndrome infection, successfully treated with nivolumab without major side effects and encouraging prolonged disease control. CASE PRESENTATION: In December 2015, at the time of the patient's progression from his Hodgkin lymphoma after fourth line treatment, he developed persistent fevers, abdominal distension, jaundice and worsening of his liver function tests...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28641714/hepatitis-c-treatment-in-patients-with-porphyria-cutanea-tarda
#10
Ashwani K Singal, Krishna V R Venkata, Sarat Jampana, Fakhar-Ul Islam, Karl E Anderson
BACKGROUND: Hepatitis C virus (HCV) infection is a common susceptibility factor for porphyria cutanea tarda (PCT). Experience on HCV treatment in patients with PCT is limited. Recently, HCV treatment has improved with direct-acting antivirals (DAA). We review our experience on HCV treatment in patients with PCT with older and newer regimens. MATERIALS AND METHODS: A retrospective chart review was conducted. HCV treatment was attempted 22 times in 13 patients with PCT (5 attempts in 1, 2 in 5 and 1 in the other 7 patients)...
June 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28641561/induction-of-humoral-and-cellular-immune-responses-in-mice-by-multiepitope-vaccines-composing-of-both-t-and-b-lymphocyte-epitopes-of-mage-a3which-are-recombined-into-hbcag
#11
Qingxin Chen, Wenshu Li, Pengfei Wang, Huanyi Shao, Yujie Ding, Wenhuan Wang, Danwei Cen, Yiqi Cai, Xiangyang Xue, Lifang Zhang, Guanbao Zhu
MAGE-A3 is highly expressed in many kinds of malignant diseases, and considered to be an ideal candidate for anti-tumor vaccine. To improve the immunogenicity of epitopes of MAGE-A3, hepatitis B virus core antigen (HBcAg) was used as an immune-carrier by insertion epitopes at HBcAg major immunodominant region (HBcAg(MIR)). In present study, we designed three kinds of MAGE-A3 multiepitopes containing T and B-cell dominant epitope-rich peptides, and constructed three recombinant chimeras of HBcAg(MIR)/MAGE-A3(EPI-1), HBcAg(MIR)/MAGE-A3(EPI-2), and HBcAg(MIR)/MAGE-A3(EPI-3) with prokaryotic codon optimization...
June 20, 2017: Protein and Peptide Letters
https://www.readbyqxmd.com/read/28639033/functional-restoration-of-cd56-bright-nk-cells-facilitates-immune-control-via-il-15-and-nkg2d-in-patients-under-antiviral-treatment-for-chronic-hepatitis-b
#12
Tao Chen, Lin Zhu, Aichao Shi, Lin Ding, Xiaoping Zhang, Zhenmin Tan, Wei Guo, Weiming Yan, Meifang Han, Jidong Jia, Xiaoping Luo, Detlef Schuppan, Qin Ning
BACKGROUND AND AIMS: Hepatitis B virus (HBV) is intrinsically immunogenic, with long-lasting immune control in many patients. However, the mechanisms and key cell types underlying effective immune control are incompletely understood. METHODS: We studied the restoration of natural killer (NK) cell numbers and function post antiviral treatment in 52 hepatitis B e antigen (HBeAg)-positive chronic hepatitis B (CHB) patients who received telbivudine (LdT) for 48 weeks...
June 20, 2017: Hepatology International
https://www.readbyqxmd.com/read/28634816/critical-biological-parameters-modulate-affinity-as-a-determinant-of-function-in-t-cell-receptor-gene-modified-t-cells
#13
Timothy T Spear, Yuan Wang, Kendra C Foley, David C Murray, Gina M Scurti, Patricia E Simms, Elizabeth Garrett-Mayer, Lance M Hellman, Brian M Baker, Michael I Nishimura
T-cell receptor (TCR)-pMHC affinity has been generally accepted to be the most important factor dictating antigen recognition in gene-modified T-cells. As such, there is great interest in optimizing TCR-based immunotherapies by enhancing TCR affinity to augment the therapeutic benefit of TCR gene-modified T-cells in cancer patients. However, recent clinical trials using affinity-enhanced TCRs in adoptive cell transfer (ACT) have observed unintended and serious adverse events, including death, attributed to unpredicted off-tumor or off-target cross-reactivity...
June 20, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28633989/efficacy-and-cytotoxicity-in-cell-culture-of-novel-%C3%AE-hydroxytropolone-inhibitors-of-hepatitis-b-virus-ribonuclease-h
#14
Elena Lomonosova, Jil Daw, Aswin K Garimallaprabhakaran, Nana B Agyemang, Yashkumar Ashani, Ryan P Murelli, John E Tavis
Chronic Hepatitis B virus (HBV) infection is a major worldwide public health problem. Current direct-acting anti-HBV drugs target the HBV DNA polymerase activity, but the equally essential viral ribonuclease H (RNaseH) activity is unexploited as a drug target. Previously, we reported that α-hydroxytropolone compounds can inhibit the HBV RNaseH and block viral replication. Subsequently, we found that our biochemical RNaseH assay underreports efficacy of the α-hydroxytropolones against HBV replication. Therefore, we conducted a structure-activity analysis of 59 troponoids against HBV replication in cell culture...
June 17, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28631602/nationwide-overview-of-the-distribution-of-hepatitis-b-virus-genotypes-in-brazil-a-1000-sample-multicentre-study
#15
Elisabeth Lampe, Francisco C A Mello, Marcia P do Espírito-Santo, Cintia M C Oliveira, Dennis A Bertolini, Neiva S L Gonçales, Regina C Moreira, Carlos A S Fernandes, Haydée C L Nascimento, Rejane M T Grotto, Maria Inês M C Pardini, On Behalf Of The Brazilian Hepatitis B Research Group
The influence of hepatitis B virus (HBV) genotypes in the natural history of the disease and its response to antiviral treatment have been addressed in many studies. In Brazil, studies on HBV genotype circulation have been restricted to specific population groups and states. Here, we have conducted a nationwide multicentre study with an unprecedented sample size representing all Brazilian regions in an effort to better understand the viral variants of HBV circulating among chronic carriers. Seven HBV genotypes were found circulating in Brazil...
June 20, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28631170/development-of-a-peptide-elisa-to-discriminate-vaccine-induced-immunity-from-natural-infection-of-hepatitis-a-virus-in-a-phase-iv-study
#16
C Ye, J Luo, X Wang, J Xi, Y Pan, J Chen, X Yang, G Li, Q Sun, J Yang
Hepatitis A virus (HAV) is a highly infectious agent that causes acute liver disease. The infection can trigger the production of antibodies against the structural and non-structural proteins of HAV. Nonetheless, vaccination with an HAV vaccine leads to the production of a primary antibody against the structural proteins. Because the non-structural proteins are only produced during active virus replication, there is no or very little antibody production against the non-structural proteins. However, the current commercial immunoassay cannot distinguish between antibodies produced during natural infection and those from vaccination against HAV...
June 19, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28631044/-personalized-treatment-of-viral-hepatitis-of-the-present-and-the-future-hepatitis%C3%A2-b-c-delta-and-e
#17
REVIEW
R Bartenschlager, M Cornberg, T Pietschmann
Precision medicine is also possible for infectious diseases as shown for the treatment of chronic viral hepatitis, especially if different options are available. In hepatitis B virus (HBV) infection, treatment indication as well as the choice of treatment and the decisions to stop treatment are based on viral markers and alanine aminotransferase (ALT) level. Future therapies for HBV infection aiming for functional cure or even virus elimination may be even more personalized and have to take into account the immune status of a given patient...
June 19, 2017: Der Internist
https://www.readbyqxmd.com/read/28630341/pig-model-mimicking-chronic-hepatitis-e-virus-infection-in-immunocompromised-patients-to-assess-immune-correlates-during-chronicity
#18
Dianjun Cao, Qian M Cao, Sakthivel Subramaniam, Danielle M Yugo, C Lynn Heffron, Adam J Rogers, Scott P Kenney, Debin Tian, Shannon R Matzinger, Christopher Overend, Nicholas Catanzaro, Tanya LeRoith, Heng Wang, Pablo Piñeyro, Nicole Lindstrom, Sherrie Clark-Deener, Lijuan Yuan, Xiang-Jin Meng
Chronic hepatitis E virus (HEV) infection is a significant clinical problem in immunocompromised individuals such as organ transplant recipients, although the mechanism remains unknown because of the lack of an animal model. We successfully developed a pig model of chronic HEV infection and examined immune correlates leading to chronicity. The conditions of immunocompromised patients were mimicked by treating pigs with an immunosuppressive regimen including cyclosporine, azathioprine, and prednisolone. Immunocompromised pigs infected with HEV progressed to chronicity, because 8/10 drug-treated HEV-infected pigs continued fecal virus shedding beyond the acute phase of infection, whereas the majority (7/10) of mock-treated HEV-infected pigs cleared fecal viral shedding at 8 wk postinfection...
June 19, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28630011/interplay-between-hepatitis-c-virus-and-lipid-metabolism-during-virus-entry-and-assembly
#19
REVIEW
Muriel Lavie, Jean Dubuisson
Hepatitis C virus (HCV) infection is a major public health problem worldwide. In most cases, HCV infection becomes chronic, leading to the development of liver diseases that range from fibrosis to cirrhosis and hepatocellular carcinoma. Due to its medical importance, the HCV life cycle has been deeply characterized, and a unique feature of this virus is its interplay with lipids. Accordingly, all the steps of the virus life cycle are influenced by the host lipid metabolism. Indeed, due to their association with host lipoproteins, HCV particles have a unique lipid composition...
June 16, 2017: Biochimie
https://www.readbyqxmd.com/read/28628455/concurrent-infection-with-hepatitis-c-virus-and-streptococcus-pneumoniae
#20
Thomas J Marrie, Gregory J Tyrrell, Sumit R Majumdar, Dean T Eurich
Little is known about concurrent infection with hepatitis C virus (HCV) and Streptococcus pneumoniae, which causes invasive pneumococcal disease (IPD). We hypothesized that co-infection with HCV and S. pneumoniae would increase risk for death and complications. We captured sociodemographic and serologic data for adults with IPD in a population-based cohort study in northern Alberta, Canada, during 2000-2014. IPD patients infected with HCV were compared with IPD patients not infected with HCV for risk of in-hospital deaths and complications by using multivariable logistic regression...
July 2017: Emerging Infectious Diseases
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