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https://www.readbyqxmd.com/read/28345397/hepatitis-b-virus-prevalence-in-rural-areas-in-south-west-chad
#1
Julian Suesstrunk, Fédéric Berniba Djongali
In Chad, hepatitis B virus (HBV) is thought to have a high prevalence and is consequently responsible for numerous acute and long-term complications. It is often detected during screening in potential blood donors. However, no general population-based study on the prevalence of hepatitis B has been performed. The aim of this study was to gain an impression of the HBV prevalence in rural areas in south-west Chad. A total of 1309 individuals (745 boys/men, 564 girls/women) with a median age of 15 years (age range, 6-81 years) were screened for the presence of the hepatitis B antigen (HBsAG)...
January 1, 2017: Tropical Doctor
https://www.readbyqxmd.com/read/28345181/hbsag-kinetics-during-treatment-with-nucleos-t-ides-analogues-in-patients-with-hbeag-negative-chronic-hepatitis-b
#2
Athanasia Striki, Spilios Manolakopoulos, Melanie Deutsch, Anastasia Kourikou, George Kontos, Hariklia Kranidioti, Emilia Hadziyannis, George Papatheodoridis
BACKGROUND/AIMS: Serum HBsAg levels might be used as predictor of virological breakthrough or of sustained off-treatment virological response in HBeAg-negative chronic hepatitis B (CHB) patients. We evaluated the changes of HBsAg in those patients under nucleos(t)ide analogue(s) [NA(s)] therapy for ≥12 months. METHODS: We included 99 HBeAg-negative CHB patients treated with low-genetic barrier NA(s) for a mean of 66 months (lamivudine: 66, adefovir: 6, lamivudine plus adefovir: 11, telbivudine: 16) and 86 HBeAg-negative CHB patients under entecavir or tenofovir for a mean of 30 months as the comparison group...
March 26, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28343937/co-infection-of-blood-borne-viruses-in-blood-donors-a-cross-sectional-study-from-north-india
#3
Ravi C Dara, Aseem K Tiwari, Dinesh Arora, Geet Aggarwal, Ganesh Singh Rawat, Jyoti Sharma, Devi Prasad Acharya, Gunjan Bhardwaj
BACKGROUND: There are several studies on prevalence of individual infectious disease markers (mono-infection) in donors but none on prevalence of coinfection. Co-infection is significant as it leads to accelerated disease progression. We, therefore, evaluated the prevalence of co-infection among blood donors. MATERIALS AND METHODS: The cross-sectional analysis was conducted in blood donors. All donors were tested for anti-HIV I and II, HBsAg, anti-HBC IgM, anti-HCV, Malaria and syphilis by chemiluminescence and ID-NAT assay...
March 6, 2017: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/28343774/immunogenicity-and-safety-of-a-high-dose-hepatitis-b-vaccine-among-patients-receiving-methadone-maintenance-treatment-a-randomized-double-blinded-parallel-controlled-trial
#4
Jing Shi, Yongliang Feng, Linying Gao, Dan Feng, Tian Yao, Shan Shi, Yawei Zhang, Xiaofeng Liang, Suping Wang
BACKGROUND AND AIMS: To explore whether the immunization with high-dose (60μg) hepatitis B vaccines in patients receiving methadone maintenance treatment (MMT) could yield a superior protection against hepatitis B infection than did the standard dose (20μg). METHODS: We conducted a randomized, double-blinded, parallel-controlled trial in MMT patients. Patients with serologically negative hepatitis B surface antigen (HBsAg) and hepatitis B surface antibody (anti-HBs) were randomized in a ratio of 1:1 to receive three intramuscular injections of 20μg or 60μg recombinant hepatitis B vaccine at months 0, 1, and 6...
March 23, 2017: Vaccine
https://www.readbyqxmd.com/read/28343069/linc00152-promotes-cancer-progression-in-hepatitis-b-virus-associated-hepatocellular-carcinoma
#5
Xin Deng, Xiao Fang Zhao, Xing Qiu Liang, Ran Chen, Yi Feng Pan, Jian Liang
BACKGROUND: The X protein (HBx) plays as a key role in hepatocarcinogenesis associated with hepatitis B virus (HBV) infections. The study aimed to figure out the role of Linc00152 in hepatocellular carcinoma (HCC) and the association between the expression levels of Linc00152 and HBx. METHODS: QRT-PCR assays were applied to analyzed the expression levels of Linc00152 and HBx. Kaplan-Meier survival curve was performed to identify the association between LINC00152 and the over survival time (OS) in HCC patients...
March 23, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28342241/overt-and-occult-hepatitis-b-virus-infection-among-community-children-in-northwest-china
#6
Haixia Su, Zhongjun Shao, Zhongshu Pu, Yang Wang, Lei Zhang, Weilu Zhang, Bo Wang, Anhui Wang, Zhaohua Ji, Yongping Yan, Yuhai Zhang
Although a universal newborn hepatitis B (HB) immunization program has been implemented in China, hepatitis B virus (HBV) breakthrough infection, including HB surface antigen (HBsAg)-positive infection and occult HBV infection (OBI), still occurs during infancy or childhood. Obtaining the actual prevalence of HBV infection in general children is important for preventing and controlling the spread of HB. Accordingly, we investigated the prevalence of overt infection and OBI in community children and compared the serological and virological characteristics of OBI and HBsAg-carrier children to clarify the mechanisms related to OBI...
March 25, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/28339910/rituximab-and-hepatitis-b-reactivation-in-hbsag-negative-anti-hbc-positive-kidney-transplant-recipients
#7
Juhan Lee, Jun Yong Park, Kyu Ha Huh, Beom Seok Kim, Myoung Soo Kim, Soon Il Kim, Hoon Sang Ahn, Yu Seun Kim
Background.: Hepatitis B virus (HBV) reactivation is a well-known complication of immunosuppressive therapy. Although rituximab is increasingly used for desensitization of ABO-incompatible or positive crossmatch kidney transplantation, the risk of HBV reactivation in hepatitis B surface antigen (HBsAg)-negative/hepatitis B core antibody (anti-HBc)-positive kidney transplant patients receiving rituximab desensitization remains undetermined. Methods.: We analysed 172 resolved HBV patients who underwent living donor kidney transplantation between 2008 and 2014...
February 23, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28329347/off-treatment-hepatitis-b-virus-hbv-dna-levels-and-the-prediction-of-relapse-after-discontinuation-of-nucleos-t-ide-analogue-therapy-in-patients-with-chronic-hepatitis-b-a-prospective-stop-study
#8
Jiawei Cao, Heng Chi, Tao Yu, Zhandong Li, Bettina E Hansen, Xiaoyong Zhang, Chunxiu Zhong, Jian Sun, Jinlin Hou, Harry L A Janssen, Jie Peng
Background.: The optimal management remains unknown after nucleos(t)ide analogue (NA) discontinuation in patients with chronic hepatitis B (CHB). This prospective study investigated the role of off-treatment viral kinetics in predicting relapse after discontinuation of NA therapy. Methods.: A total of 82 noncirrhotic Asian patients with CHB who discontinued NA therapy according to international guidelines were prospectively followed. Patients with a hepatitis B virus (HBV) DNA level of >2000 IU/mL and an alanine aminotransferase (ALT) level of >2 times the upper limit of normal (clinical relapse) were retreated...
January 19, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28328795/hepatitis-b-serological-markers-and-plasma-dna-concentrations-baseline-results-from-the-dart-trial
#9
Huw Price, David Dunn, Tamale Zachary, Tobias Vudriko, Michael Chirara, Cissy Kityo, Paula Munderi, Moira Spyer, James Hakim, Charles Gilks, Pontiano Kaleebu, Deenan Pillay, Richard Gilson
OBJECTIVES: To examine hepatitis B serological markers and plasma DNA concentrations in a large group of untreated HIV-HBV co-infected individuals in two sub-Saharan settings. DESIGN: Baseline analysis of a randomised controlled trial. METHODS: DART was a large trial of treatment monitoring practices in HIV-infected adults with advanced disease starting antiretroviral therapy at centres in Kampala or Entebbe, Uganda (n = 2,317) and Harare, Zimbabwe (n = 999)...
March 21, 2017: AIDS
https://www.readbyqxmd.com/read/28325923/clinical-features-and-viral-quasispecies-characteristics-associated-with-infection-by-the-hepatitis-b-virus-g145r-immune-escape-mutant
#10
Yuan Xue, Ming-Jie Wang, Zhi-Tao Yang, De-Min Yu, Yue Han, Dao Huang, Dong-Hua Zhang, Xin-Xin Zhang
Coexistence of the hepatitis B surface antigen (HBsAg) and hepatitis B surface antibody (anti-HBs) is an uncommon phenomenon, and the underlying mechanisms remain largely unknown. Amino-acid (aa) substitution from glycine to arginine at aa 145 (G145R), in the major hydrophilic region, has been reported in patients with HBsAg and anti-HBs coexistence. However, there is limited knowledge about the clinical features and viral quasispecies characteristics associated with G145R mutant hepatitis B virus (HBV) infection...
March 22, 2017: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/28322895/baicalin-benefits-the-anti-hbv-therapy-via-inhibiting-hbv-viral-rnas
#11
Hai Huang, Wei Zhou, Haiyan Zhu, Pei Zhou, Xunlong Shi
BACKGROUND: Although current antiviral treatments (nucleoside analogs, NAs) for chronic hepatitis B virus (HBV) infection are effective in suppressing HBV-DNA replication, their clinical outcomes can be compromised by the increasing drug resistance and the inefficiency in promoting HBsAg/HBeAg seroconversion. OBJECTIVES: In this study, we will explore possible effects and mechanism of a natural product baicalin (BA) with the anti-HBV efficacy of entecavir (ETV), a first-line anti-HBV drug, in HBV-DNA, HBsAg/HBeAg seroconversion and drug-resistance...
March 18, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28321112/different-mechanisms-may-exist-for-hbsag-synthesis-and-secretion-during-various-phases-of-chronic-hepatitis-b-virus-infection
#12
Yunsong Li, Qun Cai, Qinxiu Xie, Yafei Zhang, Xiangling Meng, Zhenhua Zhang
BACKGROUND The aim of this study was to characterize the expression and secretion of hepatitis B surface-antigen (HBsAg) in the hepatocytes of hepatitis B virus (HBV)-infected patients at different phases of infection; as such, the association of intrahepatic HBsAg expression with virological markers and the histological characteristics were analyzed. MATERIAL AND METHODS 302 chronic HBV infection patients who had not received antiviral therapy were stratified by HBeAg status. The proportion of HBsAg-positive cells was used as an indicator for HBsAg expression level...
March 21, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28320050/the-practice-pattern-of-hepatitis-b-testing-in-rheumatoid-arthritis-patients-a-cross-national-comparison-between-us-and-taiwan
#13
Tzu-Chieh Lin, Nikroo Hashemi, Seoyoung C Kim, Yea-Huei Kao Yang, Kazuki Yoshida, Sara Tedeschi, Rishi Desai, Daniel H Solomon
OBJECTIVE: The Hepatitis B Virus (HBV) testing rates and patterns in rheumatoid arthritis (RA) patients starting disease modifying anti-rheumatic drugs (DMARDs) have not been well studied. We describe and compare the practice patterns of HBV testing among RA patients in U.S. and Taiwan. METHODS: We conducted a retrospective cohort study including RA patients starting first DMARD in U.S. or Taiwan. The first date patients newly received any DMARD was defined as the index date, and the 1-year period before the index date was the baseline period...
March 20, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28319127/hepatocyte-nuclear-factor-1%C3%AE-downregulates-hbv-gene-expression-and-replication-by-activating-the-nf-%C3%AE%C2%BAb-signaling-pathway
#14
Junyu Lin, Chenjian Gu, Zhongliang Shen, Yanfeng Liu, Wei Wang, Shuai Tao, Xiaoxian Cui, Jing Liu, Youhua Xie
The role of hepatocyte nuclear factor 1α (HNF1α) in the regulation of gene expression and replication of hepatitis B virus (HBV) is not fully understood. Previous reports have documented the induction of the expression of viral large surface protein (LHBs) by HNF1α through activating viral Sp1 promoter. Large amount of LHBs can block the secretion of hepatitis B surface antigen (HBsAg). Here we found that HNF1α overexpression inhibited HBV gene expression and replication in Huh7 cells, resulting in marked decreases in HBsAg, hepatitis B e antigen (HBeAg) and virion productions...
2017: PloS One
https://www.readbyqxmd.com/read/28318369/high-rate-of-hepatitis-b-virus-infection-among-hairdressers-in-ibadan-nigeria
#15
B A Olusola, E A Gometi, O Ogunsemowo, D O Olaleye, G N Odaibo
Hepatitis B virus (HBV) infection is a major public health problem with over two billion people infected globally. Occupationally exposed persons are at high risk of HBV infection. Apart from medical personnel, there is dearth of information as regards the prevalence and awareness of HBV among occupationally exposed persons in the country. This study was designed to determine the levels of HBV awareness and prevalence of HBV infection among hairdressers in Ibadan, Nigeria. Hairdressers and teachers (unmatched controls) in four local government areas in Ibadan were tested for HBV infection using ELISA technique...
March 20, 2017: Journal of Immunoassay & Immunochemistry
https://www.readbyqxmd.com/read/28317872/preclinical-evaluation-of-the-efficacy-pharmacokinetics-and-immunogenicity-of-js-001-a-programmed-cell-death-protein-1-pd-1-monoclonal-antibody
#16
Jie Fu, Fang Wang, Li-Hou Dong, Jing Zhang, Cheng-Lian Deng, Xue-Li Wang, Xin-Yao Xie, Jing Zhang, Ruo-Xian Deng, Li-Bo Zhang, Hai Wu, Hui Feng, Bo Chen, Hai-Feng Song
JS-001 is the first monoclonal antibody (mAb) against programmed cell death protein-1 (PD-1) approved by the China Food and Drug Administration (CFDA) into the clinical trails. To date, however, no pre-clinical pharmacological and pharmacokinetic (PK) data are available. In this study, we investigated the efficacy of JS-001 and conducted a preclinical PK study, including the monitoring of anti-drug antibodies (ADAs). We found that JS-001 specifically bound to PD-1 antigen with an EC50 of 21 nmol/L, and competently blocked the binding of PD-1 antigen to PD-L1 and PD-L2 with IC50 of 3...
March 20, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28302065/lamivudine-dolutegravir-dual-therapy-in-hiv-infected-virologically-suppressed-patients
#17
Franco Maggiolo, Roberto Gulminetti, Layla Pagnucco, Margherita Digaetano, Simone Benatti, Daniela Valenti, Annapaola Callegaro, Diego Ripamonti, Cristina Mussini
BACKGROUND: Little is known about the applicability of dual treatments based on integrase inhibitors. We explored the combination of lamivudine + dolutegravir as an option when switching from standard cART in virologically suppressed patients. METHODS: In this prospective cohort we enrolled patients previously switched to 3TC + DTG who were 18 years or older, with no previous resistance mutations to the used drugs, having a HIV-RNA <50 copies/ml for 6 months or longer, negative for HBsAg and on a stable (>6 months) cART...
March 16, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28301282/immunogenicity-and-safety-of-high-dose-hepatitis-b-vaccine-among-drug-users-a-randomized-open-labeled-blank-controlled-trial
#18
Yongliang Feng, Jing Shi, Linying Gao, Tian Yao, Dan Feng, Dan Luo, Zhansheng Li, Yawei Zhang, Fuzhen Wang, Fuqiang Cui, Li Li, Xiaofeng Liang, Suping Wang
Due to the low uptake, adherence, and completion of vaccination among drug users, and their compromised immune responses to hepatitis B vaccination, the current practice of hepatitis B vaccination may not provide optimal protection. The aim of this study was to evaluate the immunogenicity and safety of 60 µg and 20 µg hepatitis B vaccines among drug users. A randomized, open-labeled, blank-controlled trial was conducted among drug users at 2 drug rehabilitation centers in China. The eligible participants were drug users who were serologically negative for the hepatitis B surface antigen (HBsAg) and the hepatitis B surface antibody (anti-HBs)...
March 16, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28300730/the-enrichment-of-hbv-immune-escape-mutations-during-nucleoside-nucleotide-analogue-therapy
#19
Menglin Shan, Zhen Shen, Hua Sun, Jianghua Zheng, Min Zhang
BACKGROUND: Drug-resistant HBV mutants frequently arise during nucleos(t)ide analogues (NAs) therapy, while the resistance mutations on polymerase also have consequent changes in the S protein. Besides, the enrichment of immune-escape mutations was negatively correlated with HBsAg clearance under NAs therapy. This study aims to characterize the variability of hepatitis B virus polymerase and surface antigen in patients with virologic breakthrough under nucleos(t)ide analogues therapy...
March 16, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28300699/monomeric-and-dimeric-ent-kauranoid-type-diterpenoids-from-rabdosia-japonica-and-their-cytotoxicity-and-anti-hbv-activities
#20
Hong-Chuan Liu, Zhao-Bao Xiang, Qiang Wang, Bo-Yan Li, Yong-Sheng Jin, Hai-Sheng Chen
Two new ent-kauranoid-type diterpenoids (1 and 2) and one new rare dimer of ent-kauranoids (3) with a cyclobutane ring by a [2+2] cycloaddition, together with nine known diterpenoids (4-12) were obtained from the aerial parts of Rabdosia japonica. Their chemical structures were established by 1D and 2D NMR techniques and mass spectrometry and by comparison with spectroscopic data reported. All ent-kauranoids were test for their cytotoxic effects against A549, HCT116, CCRF-CEM and HL-60 tumor cell lines. Compounds 1, 2, 4, 5, 7, 10 and 12 showed potent and selective cytotoxicity...
March 12, 2017: Fitoterapia
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