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https://www.readbyqxmd.com/read/29353073/serum-hbv-dna-plus-rna-shows-superiority-in-reflecting-the-activity-of-intrahepatic-cccdna-in-treatment-na%C3%A3-ve-hbv-infected-individuals
#1
Hongxin Huang, Jie Wang, Weijie Li, Ran Chen, Xiangmei Chen, Fengmin Zhang, Dongping Xu, Fengmin Lu
BACKGROUND: Both serum hepatitis B virus (HBV) DNA and RNA can reflect intrahepatic covalently closed circular DNA (cccDNA) activity. However, correlations among viral markers haven't been fully explored. OBJECTIVES: Here we investigated the correlations between serum HBV RNA and other viral markers in acute hepatitis B patients and treatment-naïve chronic HBV-infected individuals. STUDY DESIGN: The serum viral markers of 19 acute hepatitis B patients and 84 treatment-naïve chronic HBV-infected individuals at different infection stages were quantified...
January 6, 2018: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/29349567/hbeag-induces-the-expression-of-macrophage-mir-155-to-accelerate-liver-injury-via-promoting-production-of-inflammatory-cytokines
#2
Wenwen Wang, Hongjun Bian, Feifei Li, Xiao Li, Di Zhang, Shuohuan Sun, Shouyang Song, Qiang Zhu, Wanhua Ren, Chengyong Qin, Jianni Qi
Activation of Kupffer cells (KCs) induced that inflammatory cytokine production plays a central role in the pathogenesis of HBV infection. The previous studies from our and other laboratory demonstrated miRNAs can regulate TLR-inducing inflammatory responses to macrophage. However, the involvement of miRNAs in HBV-associated antigen-induced macrophage activation is still not thoroughly understood. Here, we evaluated the effects and mechanisms of miR-155 in HBV-associated antigen-induced macrophage activation...
January 18, 2018: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/29345413/hepatitis-b-screening-before-rituximab-therapy-a-multicentre-south-australian-study-of-adherence
#3
Samuel Al Hall, Abdul Shaikh, KailinTeh, Mahsa Tantiongco, Douglas Coghlan, Chris S Karapetis, Mohammad A Chinnaratha, Richard Woodman, Kate R Muller, Alan J Wigg
Background and Aims International guidelines recommend screening for Hepatitis B virus (HBV) infection prior to administration of rituximab, due to high risk of HBV reactivation in at risk patients. The aim of this study was to determine; (1) adherence to the South Australian (SA) protocol for HBV screening, (2) HBV prevalence in patients receiving rituximab, and (3) outcomes of patients at risk of HBV reactivation. METHODS: All patients commenced on rituximab at the 6 major SA public hospitals during a 12-month period were included in the study...
January 18, 2018: Internal Medicine Journal
https://www.readbyqxmd.com/read/29343454/rational-design-and-evaluation-of-hbsag-polymeric-nanoparticles-as-antigen-delivery-carriers
#4
Hitesh Kumar Dewangan, Tarun Pandey, Lakshmi Maurya, Sanjay Singh
The present work is focused on the development and evaluation of single dose sustained-release Hepatitis B surface antigen (HBsAg) loaded nanovaccine for Hepatitis B. The conventional treatment suffers from repeated administration and hence requires a booster dose. Therefore, polymeric nanovaccine of HBsAg was developed by double emulsion solvent evaporation technique, utilizing central composite design for formulation optimization. The effects of independent variables (like polymer amount, stabilizer concentration, aqueous/organic phase ratio and homogenizer speed) were also studied on critical quality attributes like particle size and entrapment efficiency...
January 14, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29340620/delivery-of-tapasin-modified-ctl-epitope-peptide-via-cytoplasmic-transduction-peptide-induces-ctls-by-jak-stat-signaling-pathway-in-vivo
#5
Shanshan Wu, Xiaohua Chen, Yuyan Tang, Yi Zhang, Dan Li, Jie Chen, Jieling Wang, Zhenghao Tang, Guoqing Zang, Yongsheng Yu
Hepatitis B virus (HBV)-specific cytotoxic T lymphocytes (CTLs) play a vital role in viral control and clearance. Recent studies have elucidated that Tapasin, an endoplasmic reticulum chaperone, is a well-known molecule that appears to be essential in peptide-loading process. The Janus kinase/signal transducers and activators of transcription (JAK/STAT) pathway plays an important role in immune response regulation and cytokines secretion. We have previously verified that fusion protein CTP-HBcAg18-27-Tapasin could facilitate the maturation of bone marrow derived dendritic cells and enhance specific CTLs responses in vitro, which might be associated with the activation of JAK/STAT signaling pathway...
January 11, 2018: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/29340451/is-waste-collection-associated-with-hepatitis-b-infection-a-meta-analysis
#6
Marcos Paulo Gomes Mol, Sandy Cairncross, Dirceu Bartolomeu Greco, Leo Heller
This meta-analysis, which is based on a previously published systematic review, aims to contribute to the scientific discussion on hepatitis B virus (HBV) infection in workers who are exposed to domestic and healthcare wastes. Publications were sought which had been made available on the data used by December 2013 and updated to December 2016. The quality of the included studies was assessed according to the guidelines of Loney et al. for the critical appraisal of studies on the prevalence or incidence of a health problem...
November 2017: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/29339154/a-new-hepatitis-b-virus-e-antigen-negative-strain-gene-used-as-a-reference-sequence-in-an-animal-model
#7
Min Cao, Zhonghua Zhao, Yuwei Tang, Qinglv Wei, Lei Wang, Qin Xiang, Yunmei Zhang, Huatang Zhang, Guoqi Lai
Infection with hepatitis B virus (HBV) e-antigen (HBeAg)-negative strains is increasingly prevalent. Currently, detailed information of the obtained natural HBV strain is not available except for the B genotype and HBeAg-negative. The aim of the present study was to characterize the natural genetic variation of the HBeAg-negative strain and investigate its function. The genic sequence was determined using Sanger sequencing, and compared to related sequences using alignment and phylogenetic analysis. In vivo, virus-specific serum markers were investigated in CBA/CaJ mice...
January 12, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29338763/sero-prevalence-of-hbsag-in-naive-hiv-infected-patients-in-a-rural-locality-of-cameroon
#8
Jean-Patrick Molu, Marie Chantal Ngonde Essome, Chavely Gwladys Monamele, Richard Njouom
OBJECTIVE: This study was performed in order to fill the gap of knowledge regarding sero-epidemiology of hepatitis B virus (HBV) amongst Human Immunodeficiency virus (HIV)-infected patients and to assess the risk factors associated with HBV co-infection in a rural locality of Cameroon. A retrospective and cross-sectional study was carried out from January 2008 to April 2014 within the Mfou District Hospital. Naive HIV-infected patients were enrolled in the study and tested for hepatitis B surface antigen (HBsAg)...
January 16, 2018: BMC Research Notes
https://www.readbyqxmd.com/read/29334502/risk-of-hepatitis-b-virus-reactivation-among-patients-treated-with-ledipasvir-sofosbuvir-for-hepatitis-c-virus-infection
#9
Beshoy T Yanny, Nyan L Latt, Sammy Saab, Steven Han, Gina Choi, Jason Kramer, Amandeep K Sahota
BACKGROUND: Direct acting antiviral (DAA) agents are the standard of care for treatment of hepatitis C virus (HCV)-infected individuals. Hepatitis B virus (HBV) reactivation during HCV treatment has been reported, the incidence and clinical outcome remains unclear. The aim of our study is to examine the risk of HBV reactivation in actively infected or previously exposed patients during or after HCV treatment with DAAs. METHODS: Adults with chronic HCV infection previously exposed or actively infected with HBV and treated with DAAs between December 2015 to 2016 were included...
January 12, 2018: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/29333103/interleukin-35-level-is-elevated-in-patients-with-chronic-hepatitis-b-virus-infection
#10
Sheng-Tao Cheng, Ding Yuan, Yi Liu, Ying Huang, Xiang Chen, Hai-Bo Yu, Lin He, Hui Jiang, Ji-Hua Ren, Juan Chen
Backgrounds: As one of the major public health problems, the hepatitis B virus (HBV) infection would activate the immune system. The outcome of HBV infection was affect significantly by the interactions between HBV and host immune response. Interleukins play important role in anti-viral immunity. Here we investigated the role of interleukin-35 (IL-35) in chronic HBV infection patients. Methods/Results: Serum IL-35 in 72 chronic hepatitis B virus infection patients and 41 healthy control subjects were analyzed by ELISA assay...
2018: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/29330989/hepatitis-b-and-hepatitis-c-virus-in-women-with-first-pregnancy
#11
Shandana Mustafa Jadoon, Muhammad Adeel, Shaheen Aslam, Ahsan Rasool
BACKGROUND: Hepatitis B and Hepatitis C are amongst the leading causes of morbidity and mortality in pregnant women throughout the globe. This study is aimed at determining the frequency of these infections among primigravid females and the common factors that make them prone to these infections. METHODS: This cross-sectional study was conducted at Ayub Teaching Hospital, Abbottabad from December 2015 to May 2016. A total of 174 jaundiced primigravida patients were included in the study through non-probability consecutive sampling...
October 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/29327822/efficacy-and-safety-of-long-term-entecavir-therapy-in-a-european-population
#12
Alessandro Collo, Paola Belci, Sharmila Fagoonee, Lucia Loreti, Valeria Gariglio, Ramona Parise, Paola Magistroni, Marilena Durazzo
BACKGROUND: Therapy in chronic hepatitis B (CHB) patients aims at improving their survival by preventing disease progression to cirrhosis and its complications. Entecavir (ETV) is currently a first line therapeutic agent recommended for the treatment of CHB. Our aim was to evaluate the long term outcome of a cohort of CHB patients treated with ETV. METHODS: Thirty-four patients treated with ETV for at least 6 months were included in this study. The virologic response was determined by the dosage of serum HBV-DNA, HBsAg, HBeAg, anti-HBs and anti-HBe antibodies...
January 10, 2018: Minerva Gastroenterologica e Dietologica
https://www.readbyqxmd.com/read/29326804/occult-hepatitis-b-virus-infection-and-associated-genotypes-among-hbsag-negative-subjects-in-burkina-faso
#13
Birama Diarra, Albert Théophane Yonli, Pegdwendé Abel Sorgho, Tegwindé Rebeca Compaore, Abdoul Karim Ouattara, Wendpagnangdé Arsène Zongo, Issoufou Tao, Lassina Traore, Serge Théophile Soubeiga, Florencia Wendkuuni Djigma, Dorcas Obiri-Yeboah, Bolni-Marius Nagalo, Virginio Pietra, Rokia Sanogo, Jacques Simpore
Background: The presence of HBV DNA in the liver (with detectable or undetectable HBV DNA in the serum) of individuals tested HBsAg negative by currently available assays is defined occult B Infection (OBI). It remains a potential transmission threat and risk to HBV chronic infection. The purpose of this study was to determine the OBI prevalence among HBsAg negative subjects and to characterize associated genotypes. Methods: Blood samples of 219 HBsAg-negative subjects tested by ELISA were collected...
2018: Mediterranean Journal of Hematology and Infectious Diseases
https://www.readbyqxmd.com/read/29324587/linkage-to-care-of-hbsag-positive-and-anti-hcv-positive-patients-after-a-systematic-screening-approach-in-the-german-primary-care-setting
#14
Anja Lüllau, David Petroff, Olaf Bätz, Jan Kramer, Katrin Jedrysiak, Hannelore Tenckhoff, Thomas Berg, Ingmar Wolffram, Johannes Wiegand
BACKGROUND: Identification of previously unknown cases is important to lower the burden of chronic hepatitis B and C infection. However, a screening program in the primary care setting has not yet been established. Therefore, a systematic screening project was conducted in 21 008 patients (Wolffram and colleagues). Here, we describe linkage to care of identified HbsAg-positive and anti-hepatitis C virus (HCV)-positive patients. METHODS: General practitioners characterized further medical care by a standardized questionnaire...
January 10, 2018: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29320990/correlation-between-polymorphisms-in-toll-like-receptor-genes-and-the-activity-of-hepatitis-b-virus-among-treatment-na%C3%A3-ve-patients-a-case-control-study-in-a-han-chinese-population
#15
Yong Lin, Zheng-Xiang Gao, Xu Shen, Mei-Jun Chen, Yan-Ting Li, Shu-Lian Li, Hui-Ling Lin, Qi-Feng Zhao, Fan Liu, Jian-Jun Niu
BACKGROUND: Because of the high prevalence and absence of cure for infection, chronic hepatitis B virus (HBV) infection has been acknowledged as a pressing public health issue. Toll-like receptors (TLRs) activate the human innate immune system and the polymorphisms in TLRs may alter their function. The present study aimed to investigate the association between TLR polymorphisms and disease progression of chronic HBV infection. METHODS: During the study period, 211 treatment-naïve patients with chronic HBV infection were recruited, and blood samples were collected from each individual...
January 10, 2018: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29320552/first-report-of-occult-hepatitis-b-infection-among-art-na%C3%A3-ve-hiv-seropositive-individuals-in-maputo-mozambique
#16
Awa Abdul Carimo, Eduardo Samo Gudo, Cremildo Maueia, Nédio Mabunda, Lúcia Chambal, Adolfo Vubil, Ana Flora, Francisco Antunes, Nilesh Bhatt
BACKGROUND: The prevalence of hepatitis B virus (HBV) infection and human immunodeficiency virus (HIV) infection in Mozambique is one of the highest in the world, though in spite of this the prevalence of occult hepatitis B infection (OBI) is unknown. OBJECTIVES: This study was conducted with the aim to investigate the prevalence of OBI and frequency of isolated hepatitis B core antibody (anti-HBc alone) among antiretroviral (ART) naïve HIV-positive patients in Mozambique...
2018: PloS One
https://www.readbyqxmd.com/read/29318526/evaluation-of-the-protection-provided-by-hepatitis-b-vaccination-in-india
#17
Jacob Puliyel, Pathik Naik, Ashish Puliyel, Kishore Agarwal, Vandana Lal, Nimmi Kansal, Devki Nandan, Vikas Tripathi, Prashant Tyagi, Saroj K Singh, Rajeev Srivastava, Utkarsh Sharma, V Sreenivas
OBJECTIVE: In India, Hepatitis B vaccination is recommended at 6 wk except for hospital-deliveries. The authors examined protection afforded by the birth dose. METHODS: A case-control study was done. HBsAg and HBcAb were tested in 2671 children, 1 to 5 y and HBsAb was evaluated in a subset of 1413 children. Vaccination history was recorded. Cases were HBsAg carriers. In another analysis, children who got infected (HBsAg and/or HBcAb positive) were considered as cases...
January 10, 2018: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/29316067/deep-sequencing-shows-low-level-oncogenic-hepatitis-b-virus-variants-persisting-post-liver-transplant-despite-potent-anti-hbv-prophylaxis
#18
Keith Ck Lau, Carla Osiowy, Elizabeth Giles, Beth Lusina, Guido van Marle, Kelly W Burak, Carla S Coffin
Recent studies suggest that withdrawal of hepatitis B immune globulin (HBIG) and nucleos(t)ide analogues (NA) prophylaxis may be considered in HBV surface antigen (HBsAg) negative liver transplant (LT) recipients with a low risk of disease recurrence. However, the frequency of occult HBV infection (OBI) and HBV variants after LT in the current era of potent NA therapy is unknown. 12 LT recipients on prophylaxis were tested in matched plasma and peripheral blood mononuclear cells (PBMC) for HBV quasispecies by in-house nested PCR and next generation sequencing of amplicons...
January 6, 2018: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/29315722/very-slow-decline-of-hepatitis-b-virus-surface-antigen-and-core-related-antigen-in-chronic-hepatitis-b-patients-successfully-treated-with-nucleos-t-ide-analogues
#19
E K Alidjinou, C Michel, V Canva, F Ajana, D Hober, L Bocket
We investigated the decline of hepatitis B virus surface antigen (HBsAg) and core related antigen (HBcrAg) in chronic hepatitis B patients sussessfully treated with nucleos(t)ide analogues. In patients with plasma viral suppression, the baseline median levels of HBsAg and HBcrAg were 3.1 log IU/mL and 3.0 log U/mL, respectively. The levels in naïve patients were 4.2 log IU/mL and 3.6 log U/mL for HBsAg and HBcrAg respectively. No significant decline was observed in patients with viral suppression within a year period...
January 9, 2018: Journal of Medical Virology
https://www.readbyqxmd.com/read/29315352/hepatitis-b-infection-among-hiv-infected-individuals-in-gabon-occult-hepatitis-b-enhances-hbv-dna-prevalence
#20
Berthold Bivigou-Mboumba, Marie Amougou-Atsama, Samira Zoa-Assoumou, Hervé M'boyis Kamdem, Guy Francis Nzengui-Nzengui, Angélique Ndojyi-Mbiguino, Richard Njouom, Sandrine François-Souquière
In Gabon, a central African country, human immunodeficiency virus (HIV) and hepatitis B virus (HBV) are endemic. In a recent study, conducted in a semi-urban area (Franceville, Gabon), HBV infection was found to be more prevalent among HIV infected individuals. This study aims to investigate the prevalence and genetic diversity of hepatitis B virus infection among HIV infected individuals, predominantly under antiretroviral therapy, living in fully urbanized area: Libreville, capital of Gabon. Serological and molecular tests were performed to detect HBV infection among patients living with HIV/AIDS (PLHA)...
2018: PloS One
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