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https://www.readbyqxmd.com/read/28936408/emerging-trends-in-epidemiology-of-hepatitis-b-virus-infection
#1
REVIEW
Cristina Stasi, Caterina Silvestri, Fabio Voller
Although a vaccine against hepatitis B virus (HBV) has been available since 1982, the prevalence of adults with chronic HBV infection in sub-Saharan Africa and East Asia is still estimated at 5-10%. A high rate of chronic infections is also found in the Amazon and the southern parts of eastern and central Europe. In the Middle East and the Indian subcontinent, the prevalence is 2-5%. Less than 1% of the population of Western Europe and North America is chronically infected. Given the high prevalence of infections (such as hepatitis) among inmates, prison is considered a reservoir for facilitating such infections...
September 28, 2017: Journal of Clinical and Translational Hepatology
https://www.readbyqxmd.com/read/28935244/contribution-of-hepatitis-b-c-virus-to-liver-cancer-in-china-north-areas-experience-from-chinese-national-cancer-center
#2
Minjie Wang, Yuting Wang, Xiaoshuang Feng, Ruijun Wang, Yanmei Wang, Hongmei Zeng, Jun Qi, Hong Zhao, Ni Li, Jianqiang Cai, Chunfeng Qu
AIM: To understand the impact of hepatitis B virus (HBV) and/or hepatitis C virus (HCV) on primary liver cancer (PLC) in China north areas. METHODS: A total of 2172 histologically confirmed PLC patients in National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences during January 1, 2003 and December 31, 2014 were enrolled. In some HCC cases we sequenced HBV PreS-S gene, C/E1 and NS5B fragment of HCV, and analyzed their genotypes. RESULTS: Among histologically confirmed 2172 PLC cases, 1823 (83...
September 18, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28934424/the-impact-of-hepatitis-b-vaccine-failure-on-long-term-natural-course-of-chronic-hepatitis-b-virus-infection-in-hepatitis-b-e-antigen-seropositive-children
#3
Chi-San Tai, Jia-Feng Wu, Huey-Ling Chen, Yen-Hsuan Ni, Hong-Yuan Hsu, Mei-Hwei Chang
Background: Vaccine failure with chronic hepatitis B virus (HBV) infection still develops in children after universal hepatitis B immunization. This study aimed to investigate the natural course of chronic HBV infection in children with vaccine failure and compare it with that of nonvaccinated children. Methods: Three hundred fifty-six hepatitis B e antigen (HBeAg)-seropositive, hepatitis B surface antigen (HBsAg) carrier children, who were followed for at least 1 year without antiviral therapy, were enrolled...
September 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28933704/the-association-between-serum-cytokine-and-chemokine-levels-and-antiviral-response-by-entecavir-treatment-in-chronic-hepatitis-b-patients
#4
Mio Kurihara, Masataka Tsuge, Eisuke Murakami, Nami Mori, Waka Ohishi, Takuro Uchida, Hatsue Fujino, Takashi Nakahara, Hiromi Abe-Chayama, Tomokazu Kawaoka, Daiki Miki, Akira Hiramatsu, Michio Imamura, Yoshiiku Kawakami, Hiroshi Aikata, Hidenori Ochi, Yizhou Zhang, Grace Naswa Makokha, C Nelson Hayes, Kazuaki Chayama
BACKGROUND: Although Nucleos(t)ide analogue therapy is thought to suppress chronic hepatitis B(CHB) via regulation of inflammatory cytokines/chemokines, the mechanism is still unclear. In this study, serum cytokine/chemokine levels were measured in CHB patients treated with entecavir, and the association with antiviral response was analyzed. METHODS: Seventy-eight Japanese patients with CHB were enrolled, and serum cytokine/chemokine levels were measured at baseline and at 12, 24, and 48 weeks of entecavir treatment using the MULTIPLEX kit...
September 21, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28932321/identification-and-characterization-of-interferon-signaling-related-micrornas-in-occult-hepatitis-b-virus-infection
#5
Yiying Wang, Peifu Zhu, Jing Qiu, Jie Wang, Huijuan Zhu, Yinwei Zhu, Lige Zhang, Jie Zhu, Xingxiang Liu, Chen Dong
BACKGROUND: Occult hepatitis B virus infection (OBI) is an important risk factor of liver cirrhosis and hepatocellular carcinoma. Type 1 interferon (IFN) signaling-related miRNAs were significantly associated with hepatitis B virus (HBV) infection. However, the characteristics of serum IFN signaling-related miRNAs in OBI remain unclear. Therefore, this study aimed to analyze the expression levels of serum IFN signaling-related miRNAs in OBI and to evaluate their potential values for OBI diagnosis...
2017: Clinical Epigenetics
https://www.readbyqxmd.com/read/28928855/association-between-extranodal-natural-killer-t-cell-lymphoma-and-hepatitis-b-viral-infection-a-case-control-study
#6
Kefeng Wang, Hang Yang, Wenjun He, Yi Xia, Zhongjun Xia, Su Li, Huiqiang Huang, Zhiming Li, Panpan Liu, Wenqi Jiang
Extranodal natural killer/T-cell lymphoma, nasal type (ENKTL) is a rare subtype of lymphoma that is often associated with poor clinical prognosis. Several studies have shown that hepatitis B virus (HBV) infection may be associated with increased risk of B-cell non-Hodgkin lymphoma; however, because of the rarity of ENKTL, little is known about its association with HBV. Our study aimed to assess whether HBV infection was associated with increased odds of ENKTL. We conducted a hospital-based case-control study including 417 ENKTL cases and 488 age- and sex-matched subjects with nonmalignant diseases unrelated to HBV infection...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28924346/co-delivery-of-polyinosinic-polycytidylic-acid-and-flagellin-by-poly-lactic-co-glycolic-acid-mps-synergistically-enhances-immune-response-elicited-by-intranasally-delivered-hepatitis-b-surface-antigen
#7
Xiaojing Dai, Jintian He, Ruxia Zhang, Guanghao Wu, Fangfang Xiong, Baohua Zhao
The aim of the present work was to investigate the synergistic effect between toll-like receptor (TLR) 3 ligand polyinosinic:polycytidylic acid (pI:C) and TLR5 ligand flagellin (FLN) on immune responses induced by nasally delivered hepatitis B virus surface antigen (HBsAg). Mannan and chitosan oligosaccharide-modified, pH-responsive poly(lactic-co-glycolic acid) (MC-PLGA) microparticles (MPs) containing HBsAg, FLN, pI:C or both ligands were prepared with a double-emulsion method. In vitro uptake experiments show that cellular uptake of MC-PLGA MPs by macrophages was through energy-dependent, receptor-mediated endocytosis mechanism...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28923315/development-of-a-digital-droplet-pcr-assay-to-measure-hbv-dna-in-patients-receiving-long-term-tdf-treatment
#8
Yang Liu, Andrea L Cathcart, William E Delaney, Kathryn M Kitrinos
The COBAS TaqMan assay has a lower limit of quantification (LLOQ) of 169 HBV copies/mL and a lower limit of detection (LLOD) of 58 copies/mL. HBV DNA below the TaqMan LLOQ is classified as target not detected (TND) (<58 copies/mL) or target detected (TD) (between 58 to 169 copies/mL). Here we have developed a more sensitive digital droplet PCR (ddPCR) assay to evaluate the impact of long-term tenofovir disoproxil fumarate (TDF) treatment in patients that did or did not achieve HBsAg seroconversion. A ddPCR assay was developed to detect HBV DNA to 8 copies/mL...
September 15, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28919631/right-atrial-myxoma-an-uncommon-presentation
#9
S K Shah, M Acharya, S I Alam, M A Hossain, M Aftabuddin
There are two types of tumors found in the cardiac chamber. These are divided into primary intra-cardiac tumors and secondary intra-cardiac tumors. Primary intra cardiac tumors are rare and among them 29% are myxomas. Majority of them are found in the left atrium. Here, we report a case of a myxoma in the right atrium with hepatomegaly and Hepatitis B virus infection. The coexistence of all these conditions is very rare. A 52 years old patient presented with history of shortness of breath on exertion along with fever and generalized weakness for 6 months which aggravated lately for last 2 months...
July 2017: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/28915824/fucoidan-from-fucus-vesiculosus-suppresses-hepatitis-b-virus-replication-by-enhancing-extracellular-signal-regulated-kinase-activation
#10
Huifang Li, Junru Li, Yuan Tang, Lin Lin, Zhanglian Xie, Jia Zhou, Liyun Zhang, Xiaoyong Zhang, Xiaoshan Zhao, Zhengliang Chen, Daming Zuo
BACKGROUND: Hepatitis B virus (HBV) infection is a serious public health problem leading to cirrhosis and hepatocellular carcinoma. As the clinical utility of current therapies is limited, the development of new therapeutic approaches for the prevention and treatment of HBV infection is imperative. Fucoidan is a natural sulfated polysaccharide that extracted from different species of brown seaweed, which was reported to exhibit various bioactivities. However, it remains unclear whether fucoidan influences HBV replication or not...
September 16, 2017: Virology Journal
https://www.readbyqxmd.com/read/28915391/hepatitis-b-surface-antigen-incorporated-in-dissolvable-microneedle-array-patch-is-antigenic-and-thermostable
#11
Danielle Poirier, Frédéric Renaud, Vincent Dewar, Laurent Strodiot, Florence Wauters, Jim Janimak, Toshio Shimada, Tatsuya Nomura, Koki Kabata, Koji Kuruma, Takayuki Kusano, Masaki Sakai, Hideo Nagasaki, Takayoshi Oyamada
Alternatives to syringe-based administration are considered for vaccines. Intradermal vaccination with dissolvable microneedle arrays (MNA) appears promising in this respect, as an easy-to-use and painless method. In this work, we have developed an MNA patch (MNAP) made of hydroxyethyl starch (HES) and chondroitin sulphate (CS). In swines, hepatitis B surface antigen (HBsAg) formulated with the saponin QS-21 as adjuvant, both incorporated in HES-based MNAP, demonstrated the same level of immunogenicity as a commercially available aluminum-adjuvanted HBsAg vaccine, after two immunizations 28 days apart...
August 29, 2017: Biomaterials
https://www.readbyqxmd.com/read/28914957/hepatitis-b-virus-core-related-antigen-levels-predict-progression-to-liver-cirrhosis-in-hepatitis-b-carriers
#12
Toshifumi Tada, Takashi Kumada, Hidenori Toyoda, Natsuko Kobayashi, Tomoyuki Akita, Junko Tanaka
BACKGROUND AND AIM: Several hepatitis B virus (HBV) markers have been identified as risk factors for progression to liver cirrhosis in patients with chronic HBV infection. We clarified the predictive impact of HBV markers on progression to cirrhosis in HBV carriers. METHODS: A total of 529 hepatitis B e antigen seroconverters with FIB-4 index ≤3.6 not on nucleos(t)ide analogue therapy were included. We performed univariate and multivariate analysis of associations between HBV markers and progression to cirrhosis...
September 15, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28913356/expression-profiling-of-cellular-microrna-in-asymptomatic-hbsag-carriers-and-chronic-hepatitis-b-patients
#13
Xianliang Hou, Yan Liang, Jianing Chen, Yingfeng Wei, Ping Zeng, Lin Wang, Chong Lu, Hongyan Diao
BACKGROUND: MicroRNAs (miRNAs) may serve as potential molecular markers to predict liver injury resulting from chronic hepatitis B (CHB). In the present study, we want to study the expression profile and clinical significance of miRNAs at different stages of CHB virus infection. METHODS: Using miRNA microarray, we investigated the global expression profiles of cellular miRNA in asymptomatic hepatitis B antigen carriers (ASCs) and CHB patients, compared with healthy controls (HCs)...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28911765/prevalence-of-hepatitis-d-virus-infection-in-sub-saharan-africa-a-systematic-review-and-meta-analysis
#14
Alexander J Stockdale, Mas Chaponda, Apostolos Beloukas, Richard Odame Phillips, Philippa C Matthews, Athanasios Papadimitropoulos, Simon King, Laura Bonnett, Anna Maria Geretti
BACKGROUND: Hepatitis D virus (also known as hepatitis delta virus) can establish a persistent infection in people with chronic hepatitis B, leading to accelerated progression of liver disease. In sub-Saharan Africa, where HBsAg prevalence is higher than 8%, hepatitis D virus might represent an important additive cause of chronic liver disease. We aimed to establish the prevalence of hepatitis D virus among HBsAg-positive populations in sub-Saharan Africa. METHODS: We systematically reviewed studies of hepatitis D virus prevalence among HBsAg-positive populations in sub-Saharan Africa...
October 2017: Lancet Global Health
https://www.readbyqxmd.com/read/28910947/-meta-analysis-on-hbsag-positive-rate-among-general-populations-aged-1-59-years-2007-2016-china
#15
W L Zhang, Z H Ji, T Fu, L Zhang, H X Su, Y P Yan
Objective: To perform a Meta-analysis on hepatitis B surface antigen (HBsAg)-positive rates among general Chinese population aged 1-59 years. Methods: We systemically reviewed the related data (January 2007 to August 2016) published from Chinese National Knowledge Infrastructure (CNKI), VIP, and PubMed. We also assessed the HBsAg-positive rates among general Chinese populations aged 1-59 years, using a random effects regression model with the comprehensive Meta-analysis software 2.2. Results: A total of 46 papers were finally included, with a total sample size of 625 053 individuals...
September 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28903779/hepatitis-delta-virological-and-clinical-aspects
#16
REVIEW
Luan Felipo Botelho-Souza, Mariana Pinheiro Alves Vasconcelos, Alcione de Oliveira Dos Santos, Juan Miguel Villalobos Salcedo, Deusilene Souza Vieira
There are an estimated 400 million chronic carriers of HBV worldwide; between 15 and 20 million have serological evidence of exposure to HDV. Traditionally, regions with high rates of endemicity are central and northern Africa, the Amazon Basin, eastern Europe and the Mediterranean, the Middle East and parts of Asia. There are two types of HDV/HBV infection which are differentiated by the previous status infection by HBV for the individual. Individuals with acute HBV infection contaminated by HDV is an HDV/HBV co-infection, while individuals with chronic HBV infection contaminated by HDV represent an HDV/HBV super-infection...
September 13, 2017: Virology Journal
https://www.readbyqxmd.com/read/28903515/update-from-the-advisory-committee-on-immunization-practices
#17
Sean T O'Leary, Yvonne A Maldonado, Carrie L Byington
The Advisory Committee on Immunization Practices (ACIP), a group of medical and public health experts, meets 3 times per year to develop recommendations for vaccine use in the United States. The group has 15 voting members, and each member's term is 4 years. ACIP members and Centers for Disease Control and Prevention (CDC) staff discuss the epidemiology of vaccine-preventable diseases and vaccine research, effectiveness, safety data, and clinical trial results. Representatives from the American Academy of Pediatrics (C...
September 1, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28899983/regulatory-nk-cells-mediated-between-immunosuppressive-monocytes-and-dysfunctional-t-cells-in-chronic-hbv-infection
#18
Haijun Li, Naicui Zhai, Zhongfeng Wang, Hongxiao Song, Yang Yang, An Cui, Tianyang Li, Guangyi Wang, Junqi Niu, Ian Nicholas Crispe, Lishan Su, Zhengkun Tu
BACKGROUND AND AIMS: HBV infection represents a major health problem worldwide, but the immunological mechanisms by which HBV causes chronic persistent infection remain only partly understood. Recently, cell subsets with suppressive features have been recognised among monocytes and natural killer (NK) cells. Here we examine the effects of HBV on monocytes and NK cells. METHODS: Monocytes and NK cells derived from chronic HBV-infected patients and healthy controls were purified and characterised for phenotype, gene expression and cytokines secretion by flow cytometry, quantitative real-time (qRT)-PCR, ELISA and western blotting...
September 12, 2017: Gut
https://www.readbyqxmd.com/read/28899424/clade-homogeneity-and-low-rate-of-delta-virus-despite-hyperendemicity-of-hepatitis-b-virus-in-ethiopia
#19
Yeshambel Belyhun, Uwe Gerd Liebert, Melanie Maier
BACKGROUND: Although hepatitis B virus (HBV) is hyperendemic and heterogeneous in its genetic diversity in Ethiopia, little is known about hepatitis D virus (HDV) circulating genotypes and molecular diversity. METHODS: A total of 321 hepatitis B surface antigen (HBsAg) positives (125 HIV co-infected, 102 liver disease patients and 94 blood donors) were screened for anti-HDV antibody. The anti-HDV positive sera were subjected to Real time PCR for HDV-RNA confirmation...
September 12, 2017: Virology Journal
https://www.readbyqxmd.com/read/28898281/randomized-prospective-study-evaluating-tenofovir-disoproxil-fumarate-prophylaxis-against-hepatitis-b-virus-reactivation-in-anti-hbc-positive-patients-with-rituximab-based-regimens-to-treat-hematologic-malignancies-the-preblin-study
#20
María Buti, María L Manzano, Rosa M Morillas, Montserrat García-Retortillo, Leticia Martín, Martín Prieto, María L Gutiérrez, Emilio Suárez, Mariano Gómez Rubio, Javier López, Pilar Castillo, Manuel Rodríguez, José M Zozaya, Miguel A Simón, Luis E Morano, José L Calleja, María Yébenes, Rafael Esteban
BACKGROUND: Hepatitis B virus (HBV) reactivation in patients with resolved HBV infection (HBsAg negative, antiHBc positive) is uncommon, but potentially fatal. The role of HBV prophylaxis in this setting is uncertain. The aim of this study was to compare the efficacy of tenofovir disoproxil fumarate (TDF) prophylaxis versus close monitoring in antiHBc-positive, HBsAg-negative patients under treatment with rituximab (RTX)-based regimens for hematologic malignancy. METHODS: PREBLIN is a phase IV, randomized, prospective, open-label, multicenter, parallel-group trial conducted in 17 hospitals throughout Spain...
2017: PloS One
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