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https://www.readbyqxmd.com/read/29055031/impact-of-gender-neutral-or-girls-only-vaccination-against-human-papillomavirus-results-of-a-community-randomized-clinical-trial-i
#1
Matti Lehtinen, Anna Söderlund-Strand, Simopekka Vänskä, Tapio Luostarinen, Tiina Eriksson, Kari Natunen, Dan Apter, Iacopo Baussano, Katja Harjula, Mari Hokkanen, Marjo Kuortti, Johanna Palmroth, Tiina Petäjä, Eero Pukkala, Sirpa Rekonen, Mari Siitari-Mattila, Heljä-Marja Surcel, Leena Tuomivaara, Jorma Paavonen, Joakim Dillner, Gary Dubin, Geoffrey Garnett
Human papillomavirus (HPV) vaccine is efficacious but the real-life effectiveness of gender-neutral and girls-only vaccination strategies is unknown. We report a community-randomized trial on the protective effectiveness [(PE) = vaccine efficacy (VE) + herd effect (HE)] of the two strategies among females in virtually HPV vaccination naïve population. We randomized 33 Finnish communities into Arm A) gender-neutral vaccination with AS04-adjuvanted HPV16/18 vaccine (11 communities), Arm B) HPV vaccination of girls and hepatitis B-virus (HBV) vaccination of boys (11 communities) or Arm C) gender-neutral HBV vaccination (11 communities)...
October 21, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29048354/hepatitis-b-virus-and-dna-damage-response-interactions-and-consequences-for-the-infection
#2
REVIEW
Andoni Gómez-Moreno, Urtzi Garaigorta
Hepatitis B virus (HBV) is a major etiologic agent of acute and chronic hepatitis, and end-stage liver disease. Establishment of HBV infection, progression to persistency and pathogenesis are determined by viral and cellular factors, some of which remain still undefined. Key steps of HBV life cycle e.g., transformation of genomic viral DNA into transcriptionally active episomal DNA (cccDNA) or transcription of viral mRNAs from cccDNA, take place in the nucleus of infected cells and strongly depend on enzymatic activities provided by cellular proteins...
October 19, 2017: Viruses
https://www.readbyqxmd.com/read/29046450/distribution-of-hepatitis-b-virus-nuclear-dna
#3
Mingming Li, Ji A Sohn, Christoph Seeger
Chronic hepatitis B affects over 300 million people who are at risk of developing liver cancer. The basis for the persistence of hepatitis B virus (HBV) in hepatocytes, even in the presence of available antiviral therapies, lies in the accumulation of covalently closed circular (ccc) DNA in nuclei of infected cells. While methods for cccDNA quantification from liver biopsies and cell lines expressing the virus are known, information about cccDNA formation, stability and turnover are lacking. In particular, little is known about the fate of cccDNA during cell division...
October 18, 2017: Journal of Virology
https://www.readbyqxmd.com/read/29046350/host-transcription-factor-speckled-110kda-sp110-a-nuclear-body-protein-is-hijacked-by-hepatitis-b-virus-protein-x-for-viral-persistence
#4
Isha Sengupta, Dipanwita Das, Shivaram Prasad Singh, Runu Chakravarty, Chandrima Das
Promyelocytic leukemia nuclear bodies (PMLNB) are sub-nuclear organelles which are the hub of numerous proteins. DNA/RNA viruses often hijack cellular-factors resident in PML-NBs to promote their proliferation in host cells. Hepatitis B virus (HBV), belonging to Hepadnaviridae family, remains undetected in early infection as it does not induce the innate immune response and is known to be the cause of several hepatic diseases leading to cirrhosis and hepatocellular carcinoma. The association of PML-NB proteins and HBV is being addressed in a number of recent studies...
October 18, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29044868/effects-of-rubiadin-isolated-from-prismatomeris-connata-on-anti-hepatitis-b-virus-activity-in-vitro
#5
Zheng Peng, Gang Fang, Fenghui Peng, Zhiyu Pan, Zhengying Su, Wei Tian, Danrong Li, Huaxin Hou
Prismatomeris connata was a kind of Rubiaceae plant for treatment of hepatitis, hepatic fibrosis and silicosis. Whereas, the effective components of Prismatomeris connata remains unexplored. The aim of this study was to investigate the inhibitory effects and mechanisms of Rubiadin isolated from Prismatomeris connata against HBV using HepG2.2.15 cells. The levels of hepatitis B surface antigen (HBsAg), hepatitis B e antigen (HBeAg), and hepatitis B core antigen (HBcAg) in the supernatants or cytoplasm were examined using by enzyme-linked immunosorbent assay...
October 18, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/29043000/effect-of-entecavir-in-the-treatment-of-patients-with-hepatitis-b-virus-related-compensated-and-decompensated-cirrhosis
#6
Xiao-Dong Gai, Wei-Feng Wu
Chronic hepatitis B virus (CHB) infection is a burden on global healthcare and is associated with a higher risk of serious sequelae, including cirrhosis and hepatocellular carcinoma. The clinical application of entecavir as a treatment for CHB has produced positive outcomes, and so is an attractive form of pharmacological therapy. However, little data exists comparing the safety and efficacy of entecavir for the treatment of hepatitis B virus (HBV)-related compensated, and decompensated cirrhosis, respectively...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29042662/switching-to-pegifn%C3%AE-2b-leads-to-hbsag-loss-in-patients-with-low-hbsag-levels-and-hbv-dna-suppressed-by-nas
#7
Jing Huang, Ka Zhang, Wenli Chen, Jinyao Liao, Xiaodan Luo, Ren Chen
Patients with low hepatitis B surface antigen (HBsAg) levels and hepatitis B virus (HBV) DNA suppression by nucleos(t)ide analogues (NAs) achieve high rate of HBsAg loss through switching to PegIFNα in pre-registration study. The aim of this study was to achieve higher rate of HBsAg loss through extended PegIFN treatment. 98 patients with HBsAg < 2,000 IU/ml and HBV DNA < 20 IU/ml were randomized to receive PegIFNα-2b or continuing NA therapy for 60 weeks. At the end of treatment (EOT) and end of follow-up (EOF), only patients who switched to PegIFNα-2b achieved HBsAg loss (32...
October 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29035003/hepatitis-b-core-related-antigen-hbcrag-an-emerging-marker-for-chronic-hepatitis-b-virus-infection
#8
REVIEW
L-Y Mak, D K-H Wong, K-S Cheung, W-K Seto, C-L Lai, M-F Yuen
BACKGROUND: Chronic hepatitis B (CHB) cannot be completely eradicated due to the presence of covalently closed circular DNA (cccDNA) in the nuclei of infected hepatocytes. While quantification of intrahepatic cccDNA requires liver biopsies, serological markers can be non-invasive alternatives to reflect intrahepatic viral replicative activity. Recently, hepatitis B core-related antigen (HBcrAg) has been advocated as a novel serum marker for disease monitoring and prognostication of CHB...
October 16, 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29032635/prevalence-and-natural-course-of-occult-hepatitis-b-virus-infection-in-residents-of-two-communities-of-wuwei-city-gansu-province-china
#9
Xiaohui Wen, Haixia Su, Yang Wang, Zhongshu Pu, Jie Gao, Zhaohua Ji, Xiaojie Yuan, Xiaochun Li, Weilu Zhang, Lei Zhang, Yong Long, Yongping Yan, Zhongjun Shao
Occult hepatitis B infection (OBI) is characterized by serum hepatitis B surface antigen (HBsAg) negative and hepatitis B virus (HBV) DNA positive (HBsAg-/HBV DNA+). OBI in community-based populations has been scarcely investigated, and OBI outcomes remain unclear, especially in Wuwei, a region located in Northwest China. This region is one of the areas in China that has the highest prevalence of chronic HBV infection. A prospective study was performed in the general population of two towns of Wuwei from June 2011 to May 2014...
October 15, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/29029102/nucleos-t-ide-analogue-treatment-for-adult-patients-with-hbeag-positive-chronic-infection-with-genotype-c-hepatitis-b-virus-a-nationwide-real-life-study
#10
Young Chang, Won Hyeok Choe, Dong Hyun Sinn, Jeong-Hoon Lee, Sang Hoon Ahn, Hyewon Lee, Jae-Jun Shim, Dae Won Jun, Soo Young Park, Joon Yeul Nam, Eun Ju Cho, Su Jong Yu, Dong Ho Lee, Jeong Min Lee, Yoon Jun Kim, So Young Kwon, Seung Woon Paik, Jung-Hwan Yoon
Background/Aim: Antiviral treatment for patients in HBeAg-positive chronic hepatitis B virus (HBV) infection is still controversial. We assessed whether antiviral treatment reduces liver disease progression in those patients. Methods: This study included consecutive patients that tested positive for HBeAg with an HBV DNA >20,000 IU/mL, ALT <40 IU/L and without evidence of cirrhosis in eight large-volume hospitals in Korea. The primary endpoint was the development of hepatocellular carcinoma (HCC) and the secondary endpoint was the development of cirrhosis...
September 23, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29027107/viral-factors-for-hbv-mother-to-child-transmission
#11
James S Park, Calvin Q Pan
Chronic hepatitis B virus (HBV) remains a leading cause of cirrhosis and hepatocellular carcinoma worldwide. Because chronic hepatitis B infection is rarely eradicated, preventing mother-to-child transmission (MTCT) is the most effective strategy to eliminate HBV globally. Although immunoprophylaxis strategy is widely available and effective for infants born to mothers with chronic hepatitis B infection, postnatal immunoprophylaxis fails in approximately 5-10 % of infants, and this failure rate goes up to 30 % in infants born to highly viremic mothers...
October 12, 2017: Hepatology International
https://www.readbyqxmd.com/read/29026650/accurate-quantification-of-within-and-between-host-hbv-evolutionary-rates-requires-explicit-transmission-chain-modelling
#12
Bram Vrancken, Marc A Suchard, Philippe Lemey
Analyses of virus evolution in known transmission chains have the potential to elucidate the impact of transmission dynamics on the viral evolutionary rate and its difference within and between hosts. Lin et al. (2015, Journal of Virology, 89/7: 3512-22) recently investigated the evolutionary history of hepatitis B virus in a transmission chain and postulated that the 'colonization-adaptation-transmission' model can explain the differential impact of transmission on synonymous and non-synonymous substitution rates...
July 2017: Virus Evolution
https://www.readbyqxmd.com/read/29020844/nucleoside-nucleotide-analogues-in-the-treatment-of-chronic-hepatitis-b-infection-during-pregnancy-a-systematic-review
#13
Soheil Tavakolpour, Mohammad Darvishi, Hajar Sadat Mirsafaei, Mojtaba Ghasemiadl
BACKGROUND: Women of childbearing age who have developed chronic hepatitis B (CHB) infection, especially HBeAg-positive highly viraemic pregnant women, are largely responsible for the familial transmission of the infection. Therefore, choosing the most effective and safest antiviral medications to manage pregnant CHB patients is of crucial importance. MATERIALS AND METHODS: The PubMed and Scopus databases were searched through September 2017, for all the journal articles possessing original results regarding treatment of CHB pregnant women with any nucleos(t)ide analogue (NA) therapies, including lamivudine (LAM), adefovir (ADV), entecavir (ETV), telbivudine (LdT), and tenofovir (TDF)...
October 11, 2017: Infectious Diseases
https://www.readbyqxmd.com/read/29020361/higher-mortality-despite-early-art-in-hiv-and-hepatitis-b-virus-coinfected-patients-with-high-hbv-replication
#14
Gérard-Menan Kouamé, Anders Boyd, Raoul Moh, Anani Badje, Delphine Gabillard, Eric Ouattara, Jean-Baptiste Ntakpe, Arlette Emième, Sarah Maylin, Mariama Abdou Chekaraou, Serge-Paul Eholié, Fabien Zoulim, Karine Lacombe, Xavier Anglaret, Christine Danel
Background: In HIV-infected patients, hepatitis B virus (HBV)-coinfection increases the risk of disease progression. Tenofovir+emtricitabine/lamivudine (TDF/XTC)-based antiretroviral therapy (ART), which suppresses HIV and HBV replication, has the potential for decreasing this risk. Here, we analyze the association between HBV replication, early-ART, and mortality in West-African adults. Methods: The Temprano randomized-control trial assessed the benefits of immediately initiating versus deferring ART in HIV-infected adults with high CD4 counts...
August 19, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29018834/in-situ-liver-expression-of-hbsag-cd3-bispecific-antibodies-for-hbv-immunotherapy
#15
Robert L Kruse, Thomas Shum, Xavier Legras, Mercedes Barzi, Frank P Pankowicz, Stephen Gottschalk, Karl-Dimiter Bissig
Current therapies against hepatitis B virus (HBV) do not reliably cure chronic infection, necessitating new therapeutic approaches. The T cell response can clear HBV during acute infection, and the adoptive transfer of antiviral T cells during bone marrow transplantation can cure patients of chronic HBV infection. To redirect T cells to HBV-infected hepatocytes, we delivered plasmids encoding bispecific antibodies directed against the viral surface antigen (HBsAg) and CD3, expressed on almost all T cells, directly into the liver using hydrodynamic tail vein injection...
December 15, 2017: Molecular Therapy. Methods & Clinical Development
https://www.readbyqxmd.com/read/29016448/brief-report-hiv-hbv-coinfection-is-a-significant-risk-factor-for-liver-fibrosis-in-tanzanian-hiv-infected-adults
#16
Claudia Hawkins, Beatrice Christian, Emanuel Fabian, Irene Macha, Cecilia Gawile, Shida Mpangala, Nzovu Ulenga, Chloe L Thio, Lauren R Ammerman, Ferdinand Mugusi, Wafaie Fawzi, Richard Green, Robert Murphy
BACKGROUND: In sub-Saharan Africa, the burden of liver disease associated with chronic hepatitis B virus (HBV) and HIV is unknown. We characterized liver disease using aspartate aminotransferase-to-platelet ratio index (APRI) and FIB-4 in patients with HIV, HBV, and HIV/HBV coinfection in Tanzania. METHODS: Using a cross-sectional design, we compared the prevalence of liver fibrosis in treatment-naive HIV monoinfected, HBV monoinfected, and HIV/HBV-coinfected adults enrolled at Management and Development for Health (MDH)-supported HIV treatment clinics in Dar es Salaam, Tanzania...
November 1, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28992879/surgical-resection-versus-liver-transplantation-for-hepatocellular-carcinoma-within-the-hangzhou-criteria-a-preoperative-nomogram-guided-treatment-strategy
#17
Yang Li, Dan-Yun Ruan, Chang-Chang Jia, Hui Zhao, Guo-Ying Wang, Yang Yang, Nan Jiang
BACKGROUND: With the expansion of surgical criteria, the comparative efficacy between surgical resection (SR) and liver transplantation (LT) for hepatocellular carcinoma is inconclusive. This study aimed to develop a prognostic nomogram for predicting recurrence-free survival of hepatocellular carcinoma patients after resection and explored the possibility of using nomogram as treatment algorithm reference. METHODS: From 2003 to 2012, 310 hepatocellular carcinoma patients within Hangzhou criteria undergoing resection or liver transplantation were included...
October 15, 2017: Hepatobiliary & Pancreatic Diseases International: HBPD INT
https://www.readbyqxmd.com/read/28987047/-epidemiology-and-risk-factors-of-hepatocellular-carcinoma
#18
REVIEW
Agnieszka Budny, Piotr Kozłowski, Marzena Kamińska, Małgorzata Jankiewicz, Agnieszka Kolak, Bożena Budny, Witold Budny, Joanna Niemunis-Sawicka, Grzegorz Szczypiór, Bartosz Kurniawka, Franciszek Burdan
Primary liver neoplasms occurs relatively rarely in Poland. The most frequently occurring type of cancer is hepatocellular carcinoma (HCC), which globally constitutes 7% of all the occurrences of cancer. The incidence increases with age and is the highest in patients around the age of 70. It also varies significantly depending on the geographic location. The main factors that cause HCC are infection of HBV and HCV, whose genome integrates into the DNA of the host, causing mutations. The other factors include excessive alcohol consumption, contact or consumption of Aspergillus toxins as well as various metabolic disorders, such as α1-antitrypsin deficiency, hemochromatosis, tyrosinemia, porphyria, von Gierke disease and in person with gene mutation p...
September 29, 2017: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28986168/highly-specific-delivery-of-sirna-to-hepatocytes-circumvents-endothelial-cell-mediated-lipid-nanoparticle-associated-toxicity-leading-to-the-safe-and-efficacious-decrease-in-the-hepatitis-b-virus
#19
Yusuke Sato, Hideki Matsui, Naoki Yamamoto, Risa Sato, Tsubasa Munakata, Michinori Kohara, Hideyoshi Harashima
Lipid nanoparticles (LNPs) are the leading technology for delivering short interfering RNA (siRNA) in vivo. While numerous attempts to improve the efficiency of siRNA delivery have been reported, only a few studies of the mechanism of LNP-mediated toxicity and attempts to develop safe LNPs in vivo have been reported, in spite of the significance of such systems, in the light of treatment and clinical applications. We herein report on the elucidation of the mechanism of hepatotoxicity following the intravenous injection of a high dose of hepatotropic LNPs...
October 3, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28983111/ifn-%C3%AE-mediated-base-excision-repair-pathway-correlates-with-antiviral-response-against-hepatitis-b-virus-infection
#20
Yong Li, Yuchen Xia, Meifang Han, Guang Chen, Dake Zhang, Wolfgang E Thasler, Ulrike Protzer, Qin Ning
Previous studies identified APOBEC deaminases as enzymes targeting hepatitis B virus (HBV) DNA in the nucleus thus affecting its persistence. Interferon (IFN)-α treated chimpanzees and hepatitis C patients showed elevated APOBEC expression. We thus hypothesized that the responses to IFN-α treatment of chronic hepatitis B (CHB) patients is influenced by IFN-induced base excision repair (BER). CHB-treatment naïve patients, patients treated with PEGylated IFN-α, and patients with sequential treatment of Entecavior and PEGylated IFN-α were recruited...
October 5, 2017: Scientific Reports
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