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Hepatitis E virus

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https://www.readbyqxmd.com/read/29676846/generic-sofosbuvir-based-direct-acting-antivirals-in-hepatitis-c-virus-infected-patients-with-chronic-kidney-disease
#1
Manoj Kumar Sharma, Suman Lata Nayak, Ekta Gupta, Ashish Kataria, Shiv K Sarin
BACKGROUND & AIMS: There is scant data on use of sofosbuvir containing directly acting anti-viral (DAA) regimens in chronic kidney disease (CKD) patients. Recently generic versions of DAAs have become available in low income countries including India. The aim of this study was to study the efficacy and safety of generic sofosbuvir in combination with generic ribavirin, ledipasvir, or daclatasvir in HCV infected patients with CKD including patients with advanced CKD (CKD stage 4 or 5 with an estimated glomerular filtration rate (GFR) <30 mL/min or those on dialysis)...
April 20, 2018: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/29676653/tissue-targeted-nanocapsids-for-oral-insulin-delivery-via-drink
#2
Chun C Chen, Mo A Baikoghli, R Holland Cheng
For the past eight decades, subcutaneous injection has been the main route used for supplementing the suboptimal insulin secretion for administering insulin as a treatment for diabetes mellitus. Although this method is effective, subcutaneous injections are painful, inconvenient and carry a high risk of infections leading to poor patient compliance. The insulin-encapsulated hepatitis E virus nanoparticle, composed of the noninfectious hepatitis E viral capsid, is expected to deliver insulin from the GI tract to the liver after ingestion...
April 20, 2018: Pharmaceutical Patent Analyst
https://www.readbyqxmd.com/read/29675889/acute-liver-failure-caused-by-hepatitis-e-virus-genotype-3-and-4-a-systematic-review-and-pooled-analysis
#3
Samir Haffar, Shalimar, Ravinder Jeet Kaur, Zhen Wang, Larry Prokop, M Hassan Murad, Fateh Bazerbachi
BACKGROUND: Acute liver failure (ALF) caused by hepatitis E virus (HEV) genotype 3 and 4 has been rarely described. Due to the presence of a short golden therapeutic window in patients with viral ALF from other causes, it is possible that early recognition and treatment might reduce the morbidity and mortality. We performed a systematicac review and pooled analysis of ALF caused by HEV genotype 3 and 4. METHODS: Two reviewers appraised studies after searching multiple databases on June 12th , 2017...
April 19, 2018: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/29675604/long-term-natural-history-of-liver-disease-in-patients-with-chronic-hepatitis-b-virus-infection-an-analysis-using-the-markov-chain-model
#4
Toshifumi Tada, Takashi Kumada, Hidenori Toyoda, Masayuki Ohisa, Tomoyuki Akita, Junko Tanaka
BACKGROUND: The relationship between the hepatitis B e antigen (HBeAg) seroconversion and the long-term natural history of liver disease has not been sufficiently investigated. METHODS: A total of 408 [4352 person-year (PY) units] patients with chronic hepatitis B virus (HBV) without antiviral therapy were enrolled. The study patients were divided into three groups, as follows: Group A (2666 PY units), seroconverted of HBeAg at age < 40; Group B (413 PY units), seroconverted of HBeAg at age ≥ 40; Group C (1273 PY units), persistently HBeAg positive...
April 19, 2018: Journal of Gastroenterology
https://www.readbyqxmd.com/read/29674549/a-world-health-organization-human-hepatitis-e-virus-reference-strain-related-to-similar-strains-isolated-from-rabbits
#5
Marco Kaiser, Déborah Delaune, Olivier Chazouillères, Johannes Blümel, Anne-Marie Roque-Afonso, Sally A Baylis
We report here the genome sequence of a hepatitis E virus (HEV) strain from a chronically infected immunodeficient patient. Full-length sequence analysis revealed a distinct HEV strain, of a tentative new subgenotype, clustering with viruses from rabbits. It is a World Health Organization reference strain for validation of nucleic acid testing.
April 19, 2018: Genome Announcements
https://www.readbyqxmd.com/read/29673839/development-of-a-macrophage-targeting-and-phagocytosis-inducing-bio-nanocapsule-based-nanocarrier-for-drug-delivery
#6
Hao Li, Kenji Tatematsu, Masaharu Somiya, Masumi Iijima, Shun' Ichi Kuroda
Macrophage hyperfunction or dysfunction is tightly associated with various diseases, such as osteoporosis, inflammatory disorder, and cancers. However, nearly all conventional drug delivery system (DDS) nanocarriers utilize endocytosis for entering target cells; thus, the development of macrophage-targeting and phagocytosis-inducing DDS nanocarriers for treating these diseases is required. In this study, we developed a hepatitis B virus (HBV) envelope L particle (i.e., bio-nanocapsule (BNC)) outwardly displaying a tandem form of protein G-derived IgG Fc-binding domain and protein L-derived IgG Fab-binding domain (GL-BNC)...
April 16, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29672035/multiple-pathways-in-capsid-assembly
#7
Corinne A Lutomski, Nicholas A Lyktey, Elizabeth E Pierson, Zhongchao Zhao, Adam Zlotnick, Martin F Jarrold
For a three-dimensional structure to spontaneously self-assemble from many identical components, the steps on the pathway must be kinetically accessible. Many virus capsids are icosahedral and assembled from hundreds of identical proteins, but how they navigate the assembly process is poorly understood. Capsid assembly is thought to involve stepwise addition of subunits to a growing capsid fragment. Coarse-grained models suggest that the reaction occurs on a downhill energy landscape, so intermediates are expected to be fleeting...
April 19, 2018: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29670408/acute-hepatitis-e-in-a-renal-transplantation-recipient-a-case-report
#8
Mitsutoshi Shindo, Hiroaki Takemae, Takafumi Kubo, Masatsugu Soeno, Tetsuo Ando, Yoshiyuki Morishita
Hepatitis E is caused by infection with the hepatitis E virus (HEV). HEV is transmitted orally via HEV-contaminated food or drink. Hepatitis E usually shows mild symptoms and is self-limiting in the general population; however, it may progress to chronic hepatitis in immunosuppressed patients such as recipients of organ transplantation. However, a few cases of acute hepatitis E have been reported in organ transplantation recipients. We herein report a case of acute hepatitis E in a 31-year-old male renal transplant recipient...
2018: International Medical Case Reports Journal
https://www.readbyqxmd.com/read/29669922/origin-antigenicity-and-function-of-a-secreted-form-of-orf2-in-hepatitis-e-virus-infection
#9
Xin Yin, Dong Ying, Sébastien Lhomme, Zimin Tang, Christopher M Walker, Ningshao Xia, Zizheng Zheng, Zongdi Feng
The enterically transmitted hepatitis E virus (HEV) adopts a unique strategy to exit cells by cloaking its capsid (encoded by the viral ORF2 gene) and circulating in the blood as "quasi-enveloped" particles. However, recent evidence suggests that the majority of the ORF2 protein present in the patient serum and supernatants of HEV-infected cell culture exists in a free form and is not associated with virus particles. The origin and biological functions of this secreted form of ORF2 (ORF2S ) are unknown...
April 18, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29669837/amino-acid-substitutions-within-hla-b-27-restricted-t-cell-epitopes-prevent-recognition-by-hepatitis-delta-virus-specific-cd8-t-cells
#10
Hadi Karimzadeh, Muthamia M Kiraithe, Anna D Kosinska, Manuel Glaser, Melanie Fiedler, Valerie Oberhardt, Elahe Salimi Alizei, Maike Hofmann, Juk Yee Mok, Melanie Nguyen, Wim J E van Esch, Bettina Budeus, Jan Grabowski, Maria Homs, Antonella Olivero, Hossein Keyvani, Francisco Rodríguez-Frías, David Tabernero, Maria Buti, Andreas Heinold, Seyed Moayed Alavian, Tanja Bauer, Julian Schulze Zur Wiesch, Bijan Raziorrouh, Daniel Hoffmann, Antonina Smedile, Mario Rizzetto, Heiner Wedemeyer, Jörg Timm, Iris Antes, Christoph Neumann-Haefelin, Ulrike Protzer, Michael Roggendorf
Virus-specific CD8 T-cell response seems to play a significant role in the outcome of hepatitis delta virus (HDV) infection. However, the HDV-specific T-cell epitope repertoire and mechanisms of CD8 T-cell failure in HDV infection have merely been characterized. We therefore aimed to characterize HDV-specific CD8 T cell epitopes and the impact of viral mutations on immune escape. In this study, we predicted peptide epitopes binding the most frequent HLA types and assessed their HLA binding capacity. These epitopes were characterized in HDV-infected patients by intracellular IFN-γ staining...
April 18, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29669835/characterization-of-three-novel-linear-neutralizing-b-cell-epitopes-in-the-capsid-protein-of-swine-hepatitis-e-virus
#11
Yiyang Chen, Baoyuan Liu, Yani Sun, Huixia Li, Taofeng Du, Yuchen Nan, Julian A Hiscox, En-Min Zhou, Qin Zhao
Hepatitis E virus (HEV) causes liver disease in humans and is thought to be a zoonotic infection with domestic animals being a reservoir including swine and rabbits. One of the proteins encoded by the virus is the capsid protein. This is likely the major immune-dominant protein and a target for vaccination. Four monoclonal antibodies (MAbs); three novel; 1E4, 2C7, 2G9, and one previously characterized (1B5), were evaluated for binding to the capsid protein from genotype 4 (swine) hepatitis E virus (HEV). The results indicated that 625 DFCP628 , 458 PSRPF462 , and 407 EPTV410 peptides on the capsid protein comprised minimal amino acid sequence motifs recognized by 1E4, 2C7, and 2G9, respectively...
April 18, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29665156/ribavirin-therapy-of-hepatitis-e-infection-may-cause-hyporegenerative-anemia-in-pediatric-renal-transplant-patients
#12
Verena Klämbt, Marcus Panning, Maximilian Seidl, Karsten Häffner, Martin Pohl
HEV infection can lead to chronic hepatitis in immunosuppressed patients; extrahepatic manifestations are rarely seen. Here, we report a 13-year-old renal transplant patient with chronic hepatitis E and renal involvement. Ribavirin therapy led to temporary virus clearance and amelioration of kidney function. However, ribavirin therapy caused severe hyporegenerative anemia, which has so far only been reported in patients treated with a combination of ribavirin and interferon alpha.
April 17, 2018: Pediatric Transplantation
https://www.readbyqxmd.com/read/29665081/safety-of-sofosbuvir-based-regimens-after-liver-transplantation-longitudinal-assessment-of-renal-function-in-the-prospective-anrs-co23-cupilt-study
#13
R Anty, G Favre, A Coilly, E Rossignol, P Houssel-Debry, C Duvoux, V De Ledinghen, V Di Martino, V Leroy, S Radenne, N Kamar, V Canva, L D'Alteroche, F Durand, J Dumortier, P Lebray, C Besch, A Tran, C M Canivet, D Botta-Fridlund, H Montialoux, C Moreno, F Conti, C Silvain, P Perré, F Habersetzer, A Abergel, M Debette-Gratien, S Dharancy, V L M Esnault, C Fougerou-Leurent, C Cagnot, A Diallo, A Veislinger, H Danjou, D Samuel, G-P Pageaux, J-C Duclos-Vallée
BACKGROUND: In liver transplant recipients with hepatitis C virus recurrence, there is concern about renal safety of sofosbuvir-based regimens. Changes in serum creatinine or in the estimated glomerular filtration rate (eGFR) under treatment are used to look for possible renal toxicity. However, serum creatinine and eGFR are highly variable. AIM: To analyse renal function trajectory with numerous assays of serum creatinine over a long period of time. METHODS: In a multicentre cohort of 139 patients, the eGFR was obtained from serum creatinine using the Chronic Kidney Disease-Epidemiology Collaboration (CKD-EPI) equation...
April 17, 2018: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29664396/chronic-genotype-3-hepatitis-e-in-pregnant-woman-receiving-infliximab-and-azathioprine
#14
Caroline Charre, Christophe Ramière, Jérôme Dumortier, Florence Abravanel, Sébastien Lhomme, Rodica Gincul, Caroline Scholtès
Acute hepatitis E virus infection during pregnancy has a high fatality rate in developing countries. Little data are available on chronic infection in pregnant women. We report a case of chronic hepatitis E during treatment with infliximab and azathioprine, without adverse event during pregnancy and with spontaneous resolution after delivery.
May 2018: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29663452/seroprevalence-and-risk-factors-of-hepatitis-e-virus-infection-among-pregnant-women-attending-antenatal-care-in-health-facilities-of-tigray-northern-ethiopia
#15
Selam Niguse, Haftamu Hailekiros, Gerezgiher Buruh, Tadese Dejene, Nega Berhe, Tsehaye Asmelash
Existing literatures from developing countries show an increased mortality and morbidity related to hepatitis E virus during pregnancy as compared to the general population. Studies focusing on pregnant women are required for policy makers to improve maternal and child health. Therefore this study is aimed at determining the prevalence and associated risk factors of hepatitis E virus infection among pregnant women attending the health facilities of Tigray region, Northern Ethiopia. In this cross sectional study 846 pregnant women were included consecutively from April 2014 to February 2016...
April 16, 2018: Journal of Medical Virology
https://www.readbyqxmd.com/read/29663433/indeterminate-genotypes-of-hepatitis-c-virus-by-the-abbott-realtime-hcv-genotype-ii-assay-in-morocco-about-8-cases-resolved-by-a-sequencing-method
#16
Mesbahi Z, Kabbaj H, Malki E, Bouihat N, Qrafli M, Belfquih B, Marcil S, Challine D, Pawlotsky Jm, Bouvier Alias M, Seffar M
The early detection and genotyping of the hepatitis C virus (HCV) are important in the management of this infection. The genotype is the major factor influencing treatment decisions. That's why it is necessary to use fast and accurate methods in its determination. This study reports, over a period of 3 years (from May 2012 to July 2015), the percentage of indeterminate genotypes by the Abbott RealTime HCV Genotype II test and their results using a sequencing technique. Of 309 samples of 309 patients tested, 11 were indeterminate (4...
April 16, 2018: Journal of Medical Virology
https://www.readbyqxmd.com/read/29662321/serum-hepatitis-b-core-antibody-levels-predict-hbeag-seroconversion-in-chronic-hepatitis-b-patients-with-high-viral-load-treated-with-nucleos-t-ide-analogs
#17
Shaohang Cai, Zhandong Li, Tao Yu, Muye Xia, Jie Peng
Background: Patients with chronic hepatitis B virus (HBV) infection who are hepatitis B virus e antigen (HBeAg) positive are increasingly being treated with nucleos(t)ide analogs (NUCs). However, the predictive value of serum hepatitis B virus core antibody (HBcAb) levels for HBeAg seroconversion among patients with high viral load remains unclear. Methods: This study consisted of 74 patients with high viral load (HBV DNA >1 × 107 copies/mL) enrolled in a multicenter, randomized, controlled trial, treated with lamivudine and adefovir (N = 32) or entecavir (N = 42) for up to 96 weeks...
2018: Infection and Drug Resistance
https://www.readbyqxmd.com/read/29661434/daclatasvir-and-sofosbuvir-with-or-without-ribavirin-in-liver-transplant-recipients-a-single-center-real-world-study
#18
M Mucenic, A Bandeira de Mello Brandao, C A Marroni, A Medeiros Fleck, M L Zanotelli, G Kiss, M H Meine, I Leipnitz, E Soares Schlindwein, J Martini, A M Costabeber, F K F Sacco, G P Cracco Cantisani
BACKGROUND: Treatment with direct-acting antiviral drugs in interferon-free regimens is currently recommended for viral hepatitis C recurrence after liver transplantation. There are limited data regarding its results in this population, and no optimal treatment scheme has yet been singled out. METHODS: We report our real-world results in liver transplant (LT) recipients. All patients were hepatitis C virus (HCV) monoinfected and completed a 12-week treatment course, followed 12 weeks later by HCV polymerase chain reaction testing with 12 IU/mL sensibility...
April 2018: Transplantation Proceedings
https://www.readbyqxmd.com/read/29660259/hepatitis-e-seroprevalence-in-the-americas-a-systematic-review-and-meta-analysis
#19
Thomas Horvatits, Ann-Kathrin Ozga, Dirk Westhoelter, Johannes Hartl, Carolin Manthey, Marc Lütgehetmann, Geraldine Rauch, Levente Kriston, Ansgar W Lohse, Richard Bendall, Heiner Wedemeyer, Harry R Dalton, Sven Pischke
BACKGROUND & AIMS: While hepatitis E virus (HEV) infections are a relevant topic in Europe, knowledge about epidemiology of HEV infections in the USA and Latin America is still limited. Aim of this study was to estimate anti-HEV IgG seroprevalence in the Americas and to assess whether low socioeconomic status is associated with HEV exposure. METHODS: We performed a systematic review and meta-analysis. Literature search was performed in PubMed for articles published 01/1994-12/2016...
April 16, 2018: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/29660214/precore-g1896a-mutation-is-associated-with-reduced-rates-of-hbsag-seroclearance-in-treated-hiv-hepatitis-b-virus-co-infected-patients-from-western-africa
#20
Anders Boyd, Raoul Moh, Sarah Maylin, Mariama Abdou Chekaraou, Nadia Mahjoub, Delphine Gabillard, Xavier Anglaret, Serge Paul Eholié, Constance Delaugerre, Christine Danel, Fabien Zoulim, Karine Lacombe
The nucleotide substitution G1896A on the precore (pc) region has been implicated in virological and serological responses during treatment in hepatitis B virus (HBV)-infected patients. Whether this mutation affects the therapeutic course of HIV-HBV co-infected patients, especially from Western Africa, is unknown. In this prospective cohort study, 86 antiretroviral (ARV)-naïve HIV-HBV co-infected patients from Côte d'Ivoire, initiating ARV-treatment containing lamivudine (n=53) or tenofovir (n=33), had available baseline pc sequences...
April 16, 2018: Journal of Viral Hepatitis
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