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https://www.readbyqxmd.com/read/29458131/inhibition-of-hepatitis-b-virus-replication-via-hbv-dna-cleavage-by-cas9-from-staphylococcus-aureus
#1
Yu Liu, Miaoxian Zhao, Mingxing Gong, Ying Xu, Cantao Xie, Haohui Deng, Xueying Li, Hongkai Wu, Zhanhui Wang
Chronic hepatitis B virus (HBV) infection is difficult to cure due to the presence of covalently closed circular DNA (cccDNA). Accumulating evidence indicates that the CRISPR/Cas9 system effectively disrupts HBV genome, including cccDNA, in vitro and in vivo. However, efficient delivery of CRISPR/Cas9 system to the liver or hepatocytes using an adeno-associated virus (AAV) vector remains challenging due to the large size of Cas9 from Streptococcus pyogenes (Sp). The recently identified Cas9 protein from Staphylococcus aureus (Sa) is smaller than SpCas9 and thus is able to be packaged into the AAV vector...
February 16, 2018: Antiviral Research
https://www.readbyqxmd.com/read/29456711/value-of-the-albumin-bilirubin-score-in-the-evaluation-of-hepatitis-b-virus-related-acute-on-chronic-liver-failure-liver-cirrhosis-and-hepatocellular-carcinoma
#2
Qing Lei, Yinhua Zhang, Changzheng Ke, Chunchun Yan, Ping Huang, Haixia Shen, Huiting Lei, Yue Chen, Jie Luo, Zhongji Meng
The aim of the present study was to investigate the value of the albumin-bilirubin (ALBI) score in the assessment of the disease conditions of hepatitis B virus (HBV)-related acute-on-chronic liver failure (HBV-ACLF), HBV-related liver cirrhosis (HBV-LC) and HBV-related hepatocellular carcinoma (HBV-HCC). A total of 395 patients with HBV-ACLF, HBV-LC, or HBV-HCC were retrospectively studied. The ALBI, Child-Turcotte-Pugh (CTP), and Model for End-Stage Liver Disease (MELD) scores of the patients were calculated, and the relationships between the ALBI score and the CTP and MELD scores were investigated...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29456414/high-prevalence-of-hepatitis-b-antibody-loss-and-a-case-report-of-de-novo-hepatitis-b-virus-infection-in-a-child-after-living-donor-liver-transplantation
#3
Palittiya Sintusek, Nawarat Posuwan, Piyaporn Wanawongsawad, Suttiruk Jitraruch, Yong Poovorawan, Voranush Chongsrisawat
AIM: To assess the seroprevalence of hepatitis B virus (HBV) immunity among previously vaccinated pediatric liver transplant recipients and present a case report of de novo hepatitis B infection after liver transplantation. METHODS: This study focused on children with chronic liver diseases who received primary hepatitis B immunization and had a complete dataset of anti-HBs before and after liver transplantation between May 2001 and June 2017. Medical records were retrospectively reviewed for potential factors relating to HBV immunity loss...
February 14, 2018: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29456411/clinical-utility-of-hepatitis-b-surface-antigen-kinetics-in-treatment-na%C3%A3-ve-chronic-hepatitis-b-patients-during-long-term-entecavir-therapy
#4
Tien-Ching Lin, Yen-Cheng Chiu, Hung-Chih Chiu, Wen-Chun Liu, Pin-Nan Cheng, Chiung-Yu Chen, Ting-Tsung Chang, I-Chin Wu
AIM: To investigate the utility of hepatitis B surface antigen (HBsAg) kinetics in chronic hepatitis B patients during long-term entecavir treatment. METHODS: This retrospective study included treatment-naïve chronic hepatitis B patients who received at least 2 years of consecutive entecavir treatment. Patients were followed up at three to six month intervals with liver biochemistry, hepatitis B virus DNA, and abdominal sonography. In hepatitis B e antigen (HBeAg)-positive patients, HBeAg levels were assessed every three to six month until results became negative...
February 14, 2018: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29456407/analysis-of-hepatitis-b-virus-pres1-variability-and-prevalence-of-the-rs2296651-polymorphism-in-a-spanish-population
#5
Rosario Casillas, David Tabernero, Josep Gregori, Irene Belmonte, Maria Francesca Cortese, Carolina González, Mar Riveiro-Barciela, Rosa Maria López, Josep Quer, Rafael Esteban, Maria Buti, Francisco Rodríguez-Frías
AIM: To determine the variability/conservation of the domain of hepatitis B virus (HBV) preS1 region that interacts with sodium-taurocholate cotransporting polypeptide (hereafter, NTCP-interacting domain) and the prevalence of the rs2296651 polymorphism (S267F, NTCP variant) in a Spanish population. METHODS: Serum samples from 246 individuals were included and divided into 3 groups: patients with chronic HBV infection (CHB) ( n = 41, 73% Caucasians), patients with resolved HBV infection ( n = 100, 100% Caucasians) and an HBV-uninfected control group ( n = 105, 100% Caucasians)...
February 14, 2018: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29456079/phase-iv-randomized-clinical-study-peginterferon-alfa-2a-with-adefovir-or-entecavir-pre-therapy-for-hbeag-positive-chronic-hepatitis-b
#6
Chao-Wei Hsu, Wei-Wen Su, Chuan-Mo Lee, Cheng-Yuan Peng, Wan-Long Chuang, Jia-Horng Kao, Heng-Cheng Chu, Yi-Hsiang Huang, Rong-Nan Chien, Yun-Fan Liaw
BACKGROUND: Efficacy of sequential therapy with nucleos(t)ide analogues and interferons versus monotherapy in patients with hepatitis B e antigen (HBeAg)-positive chronic hepatitis B (CHB) remains unexplored. We aimed to assess efficacy and safety of sequential therapy with adefovir (ADV) or entecavir (ETV) followed by peginterferon (PEG-IFN) alfa-2a in Taiwanese patients with HBeAg-positive. METHODS: This randomized, placebo-controlled, double-blind trial was conducted at nine sites in Taiwan from April 2010 to October 2013...
February 15, 2018: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/29454995/role-of-hbx-in-hepatitis-b-virus-persistence-and-its-therapeutic-implications
#7
REVIEW
Betty L Slagle, Michael J Bouchard
Chronic hepatitis B virus infection is a significant risk factor for cirrhosis and hepatocellular carcinoma. The HBx protein is required for virus replication, but the lack of robust infection models has hindered our understanding of HBx functions that could be targeted for antiviral purposes. We briefly review three properties of HBx: its binding to DDB1 and its regulation of cell survival and metabolism, to illustrate how a single viral protein can have multiple effects in a cell. We propose that different functions of HBx are needed, depending on the changing hepatocyte environment encountered during a chronic virus infection, and that these functions might serve as novel therapeutic targets for inhibiting hepatitis B virus replication and the development of associated diseases...
February 15, 2018: Current Opinion in Virology
https://www.readbyqxmd.com/read/29454849/escmid-study-group-for-infections-in-compromised-hosts-esgich-consensus-document-on-the-safety-of-targeted-and-biological-therapies-an-infectious-diseases-perspective-intracellular-signaling-pathways-tyrosine-kinase-and-mtor-inhibitors
#8
REVIEW
Mark Reinwald, Jose T Silva, Nicolas J Mueller, Jesús Fortún, Christian Garzoni, Johan W de Fijter, Mario Fernández-Ruiz, Paolo Grossi, Jose María Aguado
BACKGROUND: The present review is part of the ESCMID Study Group for Infections in Compromised Hosts (ESGICH) Consensus Document on the safety of targeted and biological therapies. AIMS: To review, from an Infectious Diseases perspective, the safety profile of therapies targeting different intracellular signaling pathways and to suggest preventive recommendations. SOURCES: Computer-based MEDLINE searches with MeSH terms pertaining to each agent or therapeutic family...
February 15, 2018: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/29454797/alterations-in-intestinal-microbiota-lead-to-production-of-interleukin-17-by-intrahepatic-%C3%AE-%C3%AE-t-cell-receptor-positive-cells-and-pathogenesis-of-cholestatic-liver-disease
#9
Dana Tedesco, Manoj Thapa, Chui-Yoke Chin, Yong Ge, Minghao Gong, Jing Li, Sanjeev Gumber, Patrick Speck, Elizabeth J Elrod, Eileen M Burd, William H Kitchens, Joseph F Magliocca, Andrew B Adams, David S Weiss, Mansour Mohamadzadeh, Arash Grakoui
BACKGROUND & AIMS: Variants at the ATP binding cassette subfamily B member 4 gene (ABCB4 or MDR2) locus, which encodes a biliary transport protein, are associated with a spectrum of cholestatic liver diseases. Exacerbation of liver disease has been linked to increased hepatic levels of interleukin 17 (IL17), yet the mechanisms of this increase are not understood. We studied mice with disruption of Mdr2 to determine how defects in liver and alteration in the microbiota contribute to production of IL17 by intrahepatic γδ T cells...
February 15, 2018: Gastroenterology
https://www.readbyqxmd.com/read/29453971/prediction-value-of-serum-hbv-large-surface-protein-in-different-phases-of-hbv-infection-and-virological-response-of-chronic-hepatitis-b-patients
#10
Can Liu, Wennan Wu, Hongyan Shang, Sheng Lin, Zhen Xun, Er Huang, Jinpiao Lin, Bin Yang, Qishui Ou
BACKGROUND: Serum HBV large surface protein (HBV-LP) is an envelope protein that has a close relationship with HBV DNA level. This study is to explore the prediction value of HBV-LP in different phase of HBV infection and during antiviral therapy in chronic hepatitis B (CHB) patients. METHODS: A retrospective study was conducted in 2033 individuals, which included 1677 HBV infected patients in different phases and 356 healthy controls. HBV-LP, HBV serum markers and HBV DNA were detected by ELISA, CMIA and qRT-PCR, respectively...
February 14, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29453472/prevalence-of-hepatitis-d-among-patients-with-hepatitis-b-viral-infection-attending-a-tertiary-care-centre-of-nepal
#11
Kiran Regmi, Jeetendra Kaji Shrestha, Sudhamshu Kc, Bikash Jaishi, Niyanta Karki, Dipendra Khadka, Sandip Khadka
INTRODUCTION: Worldwide there is variation in prevalence of Hepatitis D viral infection. Superinfection and co infection with hepatitis B viral infection is known to occur in 15-20 million people. METHODS: This was a descriptive cross-sectional hospital based study carried out in NAMS, Bir hospital, Kathmandu, Nepal from period of January 2017 to June 2017. Consecutive patients of chronic hepatitis B viral infection of HBsAg positive with more than two-time upper normal limit of ALT were enrolled and tested for HDV IgG...
October 2017: JNMA; Journal of the Nepal Medical Association
https://www.readbyqxmd.com/read/29453098/control-of-viral-transcripts-as-a-concept-for-future-hbv-therapies
#12
REVIEW
Christoph Seeger
Chronic hepatitis B virus infections affect over 250 million people world-wide, and, at present, are not curable. Of those, over 800000 are expected to die yearly from complications including cirrhosis and primary hepatocellular carcinoma (HCC). A viral episomal DNA intermediate, covalently closed circular DNA (cccDNA) can persist in nuclei of infected hepatocytes and trigger production of infectious virus. Current standard of care treatments against chronic HBV infections primarily rely on nucleoside analogs (NA) that inhibit de novo virus production by inhibiting the viral reverse transcriptase and, as a consequence, reducing virus titers...
February 13, 2018: Current Opinion in Virology
https://www.readbyqxmd.com/read/29452204/antiviral-therapy-in-hepatitis-b-virus-infected-children-with-immune-tolerant-characters-a-pilot-open-lable-randomized-study
#13
Shishu Zhu, Hongfei Zhang, Yi Dong, Limin Wang, Zhiqiang Xu, Weiwei Liu, Yu Gan, Hongmei Tang, Dawei Chen, Fuchuan Wang, Pan Zhao
BACKGROUND & AIM: Chronic infection with hepatitis B virus (HBV) in children possesses a serious health problem worldwide. It remains unresolved how children with immune-tolerant chronic hepatitis B should be treated, who were commonly characterized by HBeAg positivity, high viral load, normal or mildly elevated ALT and no or minimal inflammation in liver histology. This trial aims to study the benefits of antiviral therapy in children with these characters. METHODS: This is a pilot open-lable randomized controlled study...
February 13, 2018: Journal of Hepatology
https://www.readbyqxmd.com/read/29451182/host-genetic-factors-in-predicting-response-status-in-chronic-hepatitis-b-patients-discontinuing-nucleos-t-ide-analogs
#14
Tao Li, Feng Liu, Lixin Zhang, Qian Ye, Xiaoping Fan, Yan Xue, Lei Wang
Background/Aims: The optimal duration of nucleos(t)ide analogs (NAs) therapy in chronic hepatitis B (CHB) patients remains unsatisfactory. Previous studies have confirmed the important role of host genetic factors in determining the outcome of HBV infection. This study tries to determine the role of host genetic factors in predicting response status in CHB patients discontinuing NAs according to stringent cessation criteria. Patients and Methods: Participating patients came from a prospective NAs- discontinuation cohort since June 1999...
January 2018: Saudi Journal of Gastroenterology: Official Journal of the Saudi Gastroenterology Association
https://www.readbyqxmd.com/read/29450824/solid-state-13-c-15-n-nmr-resonance-assignment-of-hepatitis-b-virus-core-protein
#15
Lauriane Lecoq, Shishan Wang, Thomas Wiegand, Stéphane Bressanelli, Michael Nassal, Beat H Meier, Anja Böckmann
Each year, nearly 900,000 deaths are due to serious liver diseases caused by chronic hepatitis B virus infection. The viral particle is composed of an outer envelope and an inner icosahedral nucleocapsid formed by multiple dimers of a ~ 20 kDa self-assembling core protein (Cp). Here we report the solid-state 13 C and 15 N resonance assignments of the assembly domain, Cp149, of the core protein in its capsid form. A secondary chemical shift analysis of the 140 visible residues suggests an overall alpha-helical three-dimensional fold matching that derived for Cp149 from the X-ray crystallography of the capsid, and from solution-state NMR of the Cp149 dimer...
February 16, 2018: Biomolecular NMR Assignments
https://www.readbyqxmd.com/read/29449582/use-of-elispot-assay-to-study-hbs-specific-b-cell-responses-in-vaccinated-and-hbv-infected-humans
#16
Chen Tian, Yuxin Chen, Yong Liu, Shixia Wang, Yang Li, Guiyang Wang, Juan Xia, Xiang-An Zhao, Rui Huang, Shan Lu, Chao Wu
Hepatitis B surface antibody (HBsAb) plays a critical role in protecting against infection of hepatitis B virus (HBV) and were extensively studied in literature. At the same time, the status of hepatitis B surface antigen (HBs)-specific B cells in both vaccinated and HBV infected people received limited attention. In the current study, we adopted a highly specific B-cell Enzyme Linked ImmunoSpot (ELISpot) assay to analyze HBs-specific B cells in various clinical settings: healthy individuals with the history of HBV vaccination before and after receiving an extra HBV vaccine boost, people chronically infected with HBV (CHB) in various clinical stages, with or without a particular type anti-viral treatment, or whether receiving a dose of HBV vaccine...
February 16, 2018: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/29447988/escmid-study-group-for-infections-in-compromised-hosts-esgich-consensus-document-on-the-safety-of-targeted-and-biological-therapies-an-infectious-diseases-perspective-agents-targeting-lymphoid-cells-surface-antigens-i-cd19-cd20-and-cd52
#17
REVIEW
Małgorzata Mikulska, Simone Lanini, Carlota Gudiol, Lubos Drgona, Giuseppe Ippolito, Mario Fernández-Ruiz, Bernd Salzberger
BACKGROUND: The present review is part of the ESCMID Study Group for Infections in Compromised Hosts (ESGICH) Consensus Document on the safety of targeted and biological therapies. AIMS: To review, from an Infectious Diseases perspective, the safety profile of agents targeting CD19, CD20 and CD52 and to suggest preventive recommendations. SOURCES: Computer-based MEDLINE searches with MeSH terms pertaining to each agent or therapeutic family...
February 12, 2018: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/29447614/adherence-and-perceived-barriers-to-oral-antiviral-therapy-for-chronic-hepatitis-b
#18
Kerui Xu, Li-Ming Liu, Paraskevi A Farazi, Hongmei Wang, Fedja A Rochling, Shinobu Watanabe-Galloway, Jian-Jun Zhang
BACKGROUND: Globally, of the 248 million people chronically infected with the hepatitis B virus (HBV), 74 million reside in China. Five oral nucleot(s)ide analogs (NUCs) have been approved for the treatment of chronic hepatitis B (CHB) in China. OBJECTIVES: The aims of this study were to determine rates of adherence to NUC therapy in patients with CHB, to identify the self-perceived barriers to adherence, and to examine the factors associated with adherence. METHODS: Questionnaire-based interviews were administered among Chinese patients with CHB at hepatology clinics of a tertiary hospital in the city of Wuhan, China...
2018: Global Health Action
https://www.readbyqxmd.com/read/29447257/access-to-health-insurance-coverage-among-sub-saharan-african-migrants-living-in-france-results-of-the-anrs-parcours-study
#19
Nicolas Vignier, Annabel Desgrées du Loû, Julie Pannetier, Andrainolo Ravalihasy, Anne Gosselin, France Lert, Nathalie Lydié, Olivier Bouchaud, Rosemary Dray Spira
BACKGROUND: Migrants' access to care depends on their health insurance coverage in the host country. We aimed to evaluate in France the dynamic and the determinants of health insurance coverage acquisition among sub-Saharan migrants. METHODS: In the PARCOURS life-event retrospective survey conducted in 2012-2013 in health-care facilities in the Paris region, data on health insurance coverage (HIC) each year since arrival in France has been collected among three groups of sub-Saharan migrants recruited in primary care centres (N = 763), centres for HIV care (N = 923) and for chronic hepatitis B care (N = 778)...
2018: PloS One
https://www.readbyqxmd.com/read/29447061/models-to-predict-hepatitis-b-virus-infection-among-patients-with-cancer-undergoing-systemic-anticancer-therapy-a-prospective-cohort-study
#20
Jessica P Hwang, Anna S Lok, Michael J Fisch, Scott B Cantor, Andrea Barbo, Heather Y Lin, Jessica T Foreman, John M Vierling, Harrys A Torres, Bruno P Granwehr, Ethan Miller, Cathy Eng, George R Simon, Sairah Ahmed, Alessandra Ferrajoli, Jorge Romaguera, Maria E Suarez-Almazor
Purpose Most patients with cancer are not screened for hepatitis B virus (HBV) infection before undergoing anticancer therapy, and optimal screening strategies are unknown. We sought to develop selective HBV screening strategies for patients who require systemic anticancer therapy. Methods This prospective cohort study included adults age ≥ 18 years with solid or hematologic malignancies who received systemic anticancer therapy at a comprehensive cancer center during 2013 and 2014. Patients underwent hepatitis B surface antigen, hepatitis B core antibody, and hepatitis B surface antibody testing, and completed a 19-question modified Centers for Disease Control and Prevention (CDC) HBV survey...
February 15, 2018: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
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