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https://www.readbyqxmd.com/read/28714924/cross-sectional-study-to-determine-the-prevalence-of-hepatitis-b-and-c-virus-infection-in-high-risk-groups-in-the-northeast-region-of-brazil
#1
Jakeline Ribeiro Barbosa, Cristianne Sousa Bezerra, Filipe Anibal Carvalho-Costa, Carolina Pimentel de Azevedo, Geane Lopes Flores, Jeová Keny Baima Colares, Danielle Malta Lima, Elisabeth Lampe, Lívia Melo Villar
Background: HBV (Hepatitis B Virus) and HCV (Hepatitis C Virus) infections are more prevalent in vulnerable populations than the general population. The objective of this study was to investigate the prevalence of HBV and HCV infection in HIV-positive patients (GI), chronic renal failure (CRF) patients (GII) and coagulation disorder individuals (GIII). Methods: A cross-sectional study was conducted from June 2014 to March 2015. Serum samples were tested for markers of hepatitis B and C by enzyme-linked immunosorbent assay (ELISA)...
July 17, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28710874/association-between-universal-hepatitis-b-prison-vaccination-vaccine-uptake-and-hepatitis-b-infection-among-people-who-inject-drugs
#2
Norah E Palmateer, David J Goldberg, Alison Munro, Avril Taylor, Alan Yeung, Lesley A Wallace, Alan Mitchell, Samantha J Shepherd, Rory N Gunson, Celia Aitken, Sharon J Hutchinson
BACKGROUND AND AIMS: In Scotland, Hepatitis B virus (HBV) vaccination for all prisoners was introduced in 1999; here, we examine the impact of this programme among people who inject drugs (PWID) in the community. This study aimed to compare rates of HBV vaccine uptake before and after implementation of the prison programme and to estimate the determinants of vaccine uptake, the levels of ever/current HBV infection and the associations between vaccine uptake and ever/current HBV infection...
July 15, 2017: Addiction
https://www.readbyqxmd.com/read/28710825/associations-of-antibody-to-hepatitis-b-core-antigen-positivity-with-outcomes-in-hepatocellular-carcinoma-patients-undergoing-hepatic-resection
#3
Shinji Itoh, Tomoharu Yoshizumi, Takahiro Tomino, Akihisa Nagatsu, Takashi Motomura, Noboru Harada, Norifumi Harimoto, Toru Ikegami, Yuji Soejima, Yoshihiko Maehara
AIM: We aimed to evaluate the effect of antibody to hepatitis B core antigen (HBcAb)-positivity on the clinical outcomes after hepatic resection in hepatocellular carcinoma (HCC) patients with negative hepatitis B surface antigen (HBsAg) and hepatitis C virus antibody (HCVAb), termed non-B, non-C HCC (NBNC-HCC), or with HCV-related HCC. METHODS: Two hundred sixty-three patients who underwent hepatic resection for HCC and measurements of HBsAg, HCVAb, and HBcAb were enrolled in this study...
July 15, 2017: Hepatology Research: the Official Journal of the Japan Society of Hepatology
https://www.readbyqxmd.com/read/28710798/can-quantitative-hepatitis-b-surface-antigen-levels-predict-the-severity-of-liver-disease-in-genotype-e-patients
#4
Gayatri Chakrabarty, Matthew Bruce, Mary Horner, Bo Wang, Kosh Agarwal, Ivana Carey
The utility of quantitative Hepatitis B surface antigen (qHBsAg) level as a marker of chronic hepatitis B (CHB)-related liver damage is not fully delineated, but is becoming increasingly relevant. Quantitative HBsAg levels are linked with progression of liver disease in HBeAg-negative genotype B and C patients, but it is not clear whether this is consistent across all HBV genotypes. In this single-center, cross-sectional observational study, we evaluated whether qHBsAg levels can predict the severity of liver disease in genotype E patients...
July 14, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/28709845/fifteen-years-of-nucleic-acid-testing-in-france-results-and-lessons
#5
S Laperche, P Tiberghien, C Roche-Longin, J Pillonel
Of the 40 million donations screened with Nucleic acid testing (NAT) between July 2001 and December 2015 in France, 20 HIV-positive, 13 HCV-positive and 17 HBV (HBV-NAT was initiated in 2005 and extended to the whole country in 2010) donations were discarded thanks to NAT. The main benefit in terms of discarded donations is related to HBV with a yield of 0.88 per million donations, which is 12.5 and 1.8 times higher than for HCV and HIV respectively. The main risk factor found in these donors during the post donation interview was having sex with men for males (n=11, all repeat blood donors), having a partner HCV positive (n=6) or at-risk partner (originated from endemic area or HBV positive) for HBV (n=8) for HIV, HCV and HBV, respectively...
July 11, 2017: Transfusion Clinique et Biologique: Journal de la Société Française de Transfusion Sanguine
https://www.readbyqxmd.com/read/28709658/ngago-gdna-system-efficiently-suppresses-hepatitis-b-virus-replication-through-accelerating-decay-of-pregenomic-rna
#6
Zhuanchang Wu, Siyu Tan, Leiqi Xu, Lifen Gao, Haizhen Zhu, Chunhong Ma, Xiaohong Liang
Covalently closed circular DNA (cccDNA) in the hepatocytes nucleus is responsible for persistent infection of Hepatitis B virus (HBV). Current antiviral therapy drugs nucleos(t)ide analogs or interferon fail to eradicate HBV cccDNA. Genome editing technique provides an effective approach for HBV treatment through targeting viral cccDNA. Natronobacterium gregoryi Argonaute (NgAgo)-guide DNA (gDNA) system with powerful genome editing prompts us to explore its application in inhibiting HBV replication. Preliminary function verification indicated that NgAgo/EGFP-gDNA obviously inhibited EGFP expression...
July 11, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28705716/occult-hepatitis-b-virus-infection-in-greek-patients-with-congenital-bleeding-disorders
#7
Agoritsa Varaklioti, Anna Kouramba, Panagiota Ioannidou, Olga Katsarou
Occult hepatitis B infection (OBI) is a form of chronic HBV infection characterized by low level HBV DNA, without detectable HBV surface antigen (HBsAg). OBI is frequently associated with the presence of anti-HBc and in some cases also with anti-HBs. Patients, who formerly received non-inactivated factor concentrates, can potentially be considered at high risk for OBI, especially since these patients usually are HIV or HCV co-infected. This study aimed to assess the prevalence of occult HBV infection in Greek patients with hereditary bleeding disorders...
July 10, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28703895/hbv-reactivation-in-patients-with-hcv-hbv-cirrhosis-on-treatment-with-direct-acting-antivirals
#8
Vincenza Calvaruso, Donatella Ferraro, Anna Licata, Maria Grazia Bavetta, Salvatore Petta, Fabrizio Bronte, Giuseppina Colomba, Antonio Craxì, Vito Di Marco
Anecdotal reports suggest that patients with chronic HCV hepatitis and overt or occult HBV co-infection may reactivate HBV when HCV is suppressed or cleared by DAAs. We assessed the prevalence of overt or previous HBV co-infection and the risk of HBV reactivation in patients with HCV cirrhosis treated with DAAs. This was a retrospective cohort of 104 consecutive patients with HCV cirrhosis treated with DAAs. Serum HCV-RNA and HBV-DNA were tested at weeks 4, 8 and 12 of DAAs therapy and at week 12 of follow-up...
July 13, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/28702098/hepatitis-b-and-c-seroprevalence-in-patients-with-diabetes-mellitus-and-its-relationship-with-microvascular-complications
#9
Kadir Gisi, Ali Cetinkaya, Mesut Ozkaya, Bulent Kantarceken, Gokce Gisi, Sedat Koroglu
INTRODUCTION: Diabetic patients are susceptible to bacterial, viral and fungal infections because of various deficiencies in the immune system. AIM: To investigate a possible link between hepatitis B/C prevalence and microvascular complications as well as duration of diabetes. MATERIAL AND METHODS: In total 1263 diabetic patients (1149 type 2, 114 type 1) were enrolled in the study. The control group consisted of 1482 healthy blood donors who were over 40 years old...
2017: Przegla̜d Gastroenterologiczny
https://www.readbyqxmd.com/read/28700328/additional-n-glycosylation-mutation-in-the-major-hydrophilic-region-of-hepatitis-b-virus-s-gene-is-a-risk-indicator-for-hepatocellular-carcinoma-occurrence-in-patients-with-coexistence-of-hbsag-anti-hbs
#10
Yan Qiao, Shanshan Lu, Zhihui Xu, Xiaodong Li, Kai Zhang, Yan Liu, Li Zhao, Rongjuan Chen, Lanlan Si, Shumei Lin, Dongping Xu, Jin Li
The study aimed to determine the association of additional N-glycosylation mutations in the major hydrophilic region (MHR) of hepatitis B virus (HBV) S gene with hepatocellular carcinoma (HCC) occurrence in HBsAg/anti-HBs coexistent patients. A total of 288 HBsAg/anti-HBs coexistent patients and 490 single HBsAg-positive patients were enrolled, including 193 with HCC, 433 with chronic hepatitis B (CHB), and 152 with acute-on-chronic liver failure (ACLF). The HBV S genes were amplified from serum and sequenced...
June 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28699816/enrichment-of-ly6c-hi-monocytes-by-multiple-gm-csf-injections-with-hbv-vaccine-contributes-to-viral-clearance-in-a-hbv-mouse-model
#11
Weidong Zhao, Xian Zhou, Gan Zhao, Qing Lin, Xianzheng Wang, Xueping Yu, Bin Wang
Adjuvants are considered a necessary component for HBV therapeutic vaccines but few are licensed in clinical practice due to concerns about safety or efficiency. In our recent study, we established that a combination protocol of 3-day pretreatments with GM-CSF before a vaccination (3 × GM-CSF+VACCINE) into the same injection site could break immune tolerance and cause over 90% reduction of HBsAg level in the HBsAg transgenic mouse model. Herein, we further investigated the therapeutic potential of the combination in AAV8-1...
July 12, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28696237/persistent-loss-of-hbv-markers-in-serum-without-cellular-immunity-by-combination-of-peg-ifn-plus-etv-therapy-in-humanized-mice
#12
Takuro Uchida, Michio Imamura, C Nelson Hayes, Nobuhiko Hiraga, Hiromi Kan, Masataka Tsuge, Hiromi Abe-Chayama, Yizhou Zhang, Grace Naswa Makokha, Hiroshi Aikata, Daiki Miki, Hidenori Ochi, Yuji Ishida, Chise Tateno, Kazuaki Chayama
Nucleot(s)ide analogues and peg-interferon (PEG-IFN) treatment are the only approved therapies for chronic hepatitis B virus (HBV) infection. However, complete eradication of the virus, as indicated by persistent loss of hepatitis B surface antigen (HBsAg), is rare among treated patients. This is due to long-term persistence of the HBV genome in infected hepatocytes in the form of covalently closed circular DNA (cccDNA). In this study, we investigated whether administration of a large dose of a nucleoside analogue in combination with PEG-IFN can achieve long term loss of HBsAg in human hepatocyte chimeric mice...
July 10, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28693188/consecutive-stimulation-of-hbsag-promotes-the-viability-of-the-human-b-lymphoblastoid-cell-line-im-9-through-regulating-the-sirt1-nf-%C3%AE%C2%BAb-pathway
#13
Jian Bo, Xiaojuan Wang, Jie Li, Wenqing Wang, Jinqian Zhang
Patients with chronic HBV infection have been reported to suffer a significantly increased risk of NHL, but the underlying mechanisms remain to be clearly explained. The aim of the present study was to clarify the relationship between chronic HBV infection and NHL development. Fluorescence-activated cell sorting, Annexin V/7-aminoactinomycin D staining and MTS assay were used to analyze the rate of apoptosis and cell viability. In addition, western blotting was used to detect protein expression. The effects of the activator of SIRT1, SRT1720, and the inhibitor of SIRT1, nicotinamide, were also analyzed...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28693080/-the-epidemiological-characteristics-of-hbv-susceptibility-in-1-29-years-old-young-people-in-china-in-2006-and-2014-based-on-the-national-sero-survey-data-analysis
#14
H Zheng, F Z Wang, G M Zhang, N Miao, X J Sun, F Q Cui
Objective: To analyze the epidemiological characteristics of HBV susceptible people in 1-29 years old people in 2006 and 2014 in China. Method: Data is from the 2006 and 2014 national sero-survey, and both of them were conducted in 160 disease surveillance points of 31 provinces (excluding Hong Kong, Macao Special Administrative Region and Taiwan province) in China. We used the centralized face-to face investigation method to collect basic information including birth date, gender, ethnicity, resident place, hepatitis B vaccination (HepB) history and so on, and 5 ml venous blood was collected for all subjects to test the sero-markers of HBsAg, anti-HBs and anti-HBc...
July 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/28691231/active-immunization-for-prevention-of-de-novo-hbv-infection-after-adult-living-donor-liver-transplantation-with-hbc-graft
#15
Shih-Ho Wang, Poh-Yen Loh, Ting-Lung Lin, Li-Man Lin, Wei-Feng Lee, Yu-Hung Lin, Chih-Che Lin, Chao-Long Chen
Background De novo hepatitis B infection (DNHB) may occur in recipients who do not receive prophylaxis after liver transplantation (LT) with anti-HBc(+) donor grafts. Active immunization has been shown to prevent DNHB in pediatric recipients. Our aim is to investigate the efficacy of HBV vaccination for preventing DNHB in adult living donor LT (LDLT). Patients and Methods 71 adult HBsAg(-) LDLT patients who received anti-HBc(+) grafts from 2000 to 2010 were enrolled into this study. Patients were given HBV vaccinations with the aim of achieving anti-HBs >1000 IU/L pre-transplant and >100 IU/L post-transplant...
July 10, 2017: Liver Transplantation
https://www.readbyqxmd.com/read/28687901/virological-and-clinical-characteristics-of-hepatitis-b-virus-genotype-a
#16
REVIEW
Kiyoaki Ito, Masashi Yoneda, Kazumasa Sakamoto, Masashi Mizokami
Hepatitis B virus (HBV) infection is one of the most prevalent chronic viral infections in humans. The overall prevalence of hepatitis B surface antigen (HBsAg) is reported to be 3.6%; however, it varies depending upon the geographic area. HBV is classified into ten genotypes (A through J) on the basis of an intergroup genomic divergence of > 8%. Specifically, HBV genotype A exhibits several unique virological and clinical characteristics and can be further classified into seven subtypes. Among them, subtype A2 or Ae (A2/[e]) is occasionally responsible for nosocomial infection and among homosexual males...
July 7, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28687404/significant-reduction-in-notification-and-seroprevalence-rates-of-hepatitis-b-virus-infection-among-the-population-of-zhejiang-province-china-aged-between-1-and-29years-from-2006-to-2014
#17
Yang Zhou, Hanqing He, Xuan Deng, Rui Yan, Xuewen Tang, Shuyun Xie, Jun Yao
BACKGROUND AND OBJECTIVE: The Chinese government integrated hepatitis B vaccination into the national immunization program in 1992, when the hepatitis B birth dose was introduced in China. Zhejiang province is a relatively developed area in eastern China and was an area with high endemicity for hepatitis B virus (HBV) infection via mother-to-child transmission. The hepatitis B vaccine vaccination rates for the birth dose and 3- dose schedule in Zhejiang Province since 1992 have both remained above 90% [1]...
July 4, 2017: Vaccine
https://www.readbyqxmd.com/read/28687350/clinical-response-to-long-term-tenofovir-monotherapy-in-korean-chronic-hepatitis-b-patients
#18
Eun-Hyung Yoo, Hyun-Jung Cho
BACKGROUND: Tenofovir disoproxil fumarate (TDF) is a potent nucleotide analogue recommended as first-line monotherapy for chronic hepatitis B (CHB). We investigated the clinical response to TDF monotherapy in Korean CHB patients. METHODS: A total of 90 CHB patients [55 hepatitis B e antigen (HBeAg)-positive and 35 HBeAg-negative] who received TDF monotherapy for >2year, were enrolled. Quantitative hepatitis B surface antigen (qHBsAg) levels, serum alanine aminotransferase (ALT), HBeAg, anti-HBe and HBV DNA levels were measured during treatment...
July 4, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28685670/milk-donor-blood-screening-for-hiv-syphilis-and-hepatitis-b-markers-in-a-brazilian-human-milk-bank-prevalence-time-trends-over-the-2005-2015-period
#19
Emil Kupek, Estela Olivo Savi
BACKGROUND: Human milk banking has been promoted to provide donated breast milk for at-risk children whose mothers cannot breastfeed them but this effort was hindered by the advent of HIV epidemic. OBJECTIVE: To estimate the seroprevalence of HIV, syphilis and hepatitis B in the blood of human milk donors registered in a major maternity hospital in the northern region of the Santa Catarina State, Brazil. METHODS: A retrospective study included serological tests for HIV, syphilis and hepatitis B screening of milk donor candidates in the 2005-2015 period...
July 7, 2017: Current HIV Research
https://www.readbyqxmd.com/read/28685286/modulation-of-wnt-signaling-pathway-by-hepatitis-b-virus
#20
REVIEW
Muhammad Daud, Muhammad Adeel Rana, Tayyab Husnain, Bushra Ijaz
Hepatitis B virus (HBV) has a global distribution and is one of the leading causes of hepatocellular carcinoma. The precise mechanism of pathogenicity of HBV-associated hepatocellular carcinoma (HCC) is not yet fully understood. Viral-related proteins are known to take control of several cellular pathways like Wnt/β-catenin, TGF-β, Raf/MAPK and ROS for the virus's own replication. This affects cellular persistence, multiplication, migration, alteration and genomic instability. The Wnt/FZD/β-catenin signaling pathway plays a significant role in the pathology and physiology of the liver and has been identified as a main factor in HCC development...
July 6, 2017: Archives of Virology
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