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https://www.readbyqxmd.com/read/28100373/-epidemiological-characteristics-of-children-aged-1-4-years-without-timely-birth-dose-of-hepatitis-b-vaccine-vaccination-in-china-2014
#1
F Z Wang, G M Zhang, L P Shen, J H Liu, H Zheng, F Wang, N Miao, X J Sun, X F Liang, F Q Cui
Objective: To evaluate the epidemiological characteristics of the children aged 1-4 years without timely birth dose of hepatitis B vaccine (HepB(1)) vaccination. Methods: Based on the data from 160 disease surveillance points in 31 provinces of China, two-stage cluster random sampling was used to select the target population aged 1-4 years. A standard questionnaire was used to collect the information about the birth date, gender, ethnic group, place of birth, HepB immunization history of the children selected...
January 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28100289/hepatitis-b-virus-in-drug-users-in-france-prevalence-and-vaccination-history-anrs-coquelicot-survey-2011-2013
#2
C Brouard, J Pillonel, P Sogni, A Chollet, J V Lazarus, X Pascal, F Barin, M Jauffret-Roustide
People who use drugs (PWUD) are a key population for hepatitis B virus (HBV) vaccination and screening. We aimed to estimate the seroprevalence of HBs antigen (HBsAg) and self-reported HBV vaccination history in French PWUD attending harm reduction centres using data from the ANRS-Coquelicot multicentre survey conducted in 2011-2013 in 1718 PWUD. Self-fingerprick blood samples were collected on dried blood spots to detect the presence of HBsAg. HBsAg seroprevalence was estimated at 1·4% [95% confidence interval (CI) 0·8-2·5]...
January 19, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28092402/%C3%AE-%C3%AE-t-cells-are-indispensable-for-il-23-mediated-protection-against-cona-induced-hepatitis-in-hepatitis-b-virus-transgenic-mice
#3
Ziyu Meng, Jingya Wang, Yifang Yuan, Guangchao Cao, Shuobing Fan, Chao Gao, Li Wang, Zheng Li, Xiaoli Wu, Zhenzhou Wu, Liqing Zhao, Zhinan Yin
Hepatitis B virus surface antigen (HBsAg) carriers are highly susceptible to liver injury triggered by environmental biochemical stimulation. Previously, we have reported an inverse correlation between γδT cells and liver damage in patients with HBV. However, whether γδT cells play a role in regulating the hypersensitivity of HBsAg carriers to biochemical stimulation-induced hepatitis is unknown. In this study, using hepatitis B virus transgenic (HBs-Tg) and HBs-Tg-TCRδ(-/-) mice, we found that mice genetically deficient in γδT cells exhibited more severe liver damage upon ConcanavalinA (ConA) treatment, as indicated by substantially higher serum alanine aminotransferase (ALT) levels, further elevated IFN-γ levels and more extensive necrosis...
January 16, 2017: Immunology
https://www.readbyqxmd.com/read/28092214/treatment-of-delta-hepatitis-today-and-in-the-future-a-review
#4
Ibrahim Halil Bahcecioglu, Abdurrahman Sahin
Hepatitis delta virus (HDV) is a defective satellite virus and propagates in the presence of Hepatitis B virus (HBV) surface antigen (HBsAg). Approximately 5% of the people who infected with HBV are also infected with HDV. Chronic hepatitis caused by delta is the most severe form of chronic viral hepatitis including accelerated fibrosis, liver decompensation and development of hepatocellular carcinoma. Interferon-based therapies still remain the only treatment option of the hepatitis delta. The beneficiary effects of the interferon-based therapies, however, stop frequently with termination of the given therapy and relapse rate is very high...
January 16, 2017: Infectious Diseases
https://www.readbyqxmd.com/read/28081591/new-perspectives-of-biomarkers-for-the-management-of-chronic-hepatitis-b
#5
REVIEW
Chih-Lin Lin, Jia-Horng Kao
With recent advances in molecular and genomic investigations, the impact of hepatitis B viral and host factors on the progression of chronic HBV infection has been explored. For viral factors, hepatitis B viral load is a strong predictor for liver disease progression. Hepatitis B viral kinetics appear to be important for successful anti-viral therapy. Serum HBsAg level serves as a complementary marker to viral load for the prediction of HBV-related adverse outcomes in patients with low viral load. In those with low viral load, high serum HBsAg level is associated with higher risks of cirrhosis and HCC...
December 2016: Clinical and Molecular Hepatology
https://www.readbyqxmd.com/read/28078526/effectiveness-and-safety-of-entecavir-or-tenofovir-in-a-spanish-cohort-of-chronic-hepatitis-b-patients-validation-of-the-page-b-score-to-predict-hepatocellular-carcinoma
#6
Mar Riveiro-Barciela, David Tabernero, José L Calleja, Sabela Lens, María L Manzano, Francisco Gea Rodríguez, Javier Crespo, Belén Piqueras, Juan M Pascasio, Carmen Comas, Maria L Gutierrez, Alberto Aguirre, Emilio Suárez, Javier García-Samaniego, Miguel Rivero, Doroteo Acero, Miguel Fernandez-Bermejo, Diego Moreno, Pilar Sánchez-Pobre, Beatriz de Cuenca, J J Moreno-Palomares, Rafael Esteban, Maria Buti
BACKGROUND: Long-term antiviral therapy has resulted in viral suppression and biochemical response in chronic hepatitis B, although the risk of hepatocellular carcinoma has not been abolished. The Page-B score could be useful to estimate the probability of HCC. AIMS: To analyze the effectiveness and safety of entecavir or tenofovir for more than 4 years and the usefulness of Page-B score in the real-world setting. METHODS: Analysis of Caucasian chronic hepatitis B subjects treated with entecavir or tenofovir from the prospective, multicenter database CIBERHEP...
January 11, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28073409/-a-study-of-immune-response-to-hbsag-mediated-by-cd4-memory-t-lymphocytes-in-immunized-hbv-transgenic-mice
#7
Y Li, J H Chen, X G Shu, J H Chen, Q H Xia, W Z Yuan, L Wu, Q Tang, G B Wang
Objective: To investigate the mechanism of immune response to HBsAg mediated by CD4+ memory T lymphocytes in immunized HBV transgenic (Tg) mice. Methods: Peripheral CD4+ memory T lymphocytes were isolated and collected by magnetic bead sorting from C57BL/6 mice successfully immunized by hepatitis B vaccine. Adoptive immunization was performed for Tg mice by caudal vein injection, and the peripheral blood was collected at 4 and 8 weeks after adoptive immunization. Enzyme-linked immunosorbent assay was used to measure the levels of HBsAg, anti-HBs, interferon-γ (IFNγ), and interleukin-2 (IL-2), and immunohistochemistry was used to measure the level of HBsAg in the liver...
December 20, 2016: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/28073406/-prevention-of-mother-to-child-transmission-of-hepatitis-b-virus
#8
H Zhuang
Mother-to-child transmission (MTCT) is a major mode of hepatitis B virus (HBV) transmission, especially in high endemic areas. Administration of hepatitis B immunoglobulin (HBIG) and hepatitis B vaccine to infants at birth, followed by completion of the vaccine series, prevented approximately 95% of HBV transmission from HBsAg-positive mothers to their infants. However, immunoprophylaxis failure was still observed in 5~10% infants born to mothers with high levels of viremia. It was demonstrated that antiviral nucleot(s)ide analogues (NUCs) provided to pregnant women with high viral loads in late pregnancy further reduced MTCT...
December 20, 2016: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/28073159/polymeric-immunoglobulin-receptor-promotes-tumor-growth-in-hepatocellular-carcinoma
#9
Xihua Yue, Jing Ai, Yang Xu, Yi Chen, Min Huang, Xinying Yang, Bo Hu, Haotian Zhang, Changxi He, Xinrong Yang, Weiguo Tang, Xia Peng, Liwei Dong, Hongyang Wang, Jia Fan, Jian Ding, Meiyu Geng
: Deregulation of the immune system is believed to contribute to cancer malignancy, which has led to recent therapeutic breakthroughs facilitating antitumor immunity. In a malignant setting, immunoglobulin receptors, which are fundamental components of the human immune system, fulfill paradoxical roles in cancer pathogenesis. This study describes a previously unrecognized pro-oncogenic function of polymeric immunoglobulin receptor (pIgR) in the promotion of cell transformation and proliferation...
January 10, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28072494/hepatitis-b-virus-reactivation-in-breast-cancer-patients-undergoing-chemotherapy-a-review-and-meta-analysis-of-prophylaxis-management
#10
Zihao Liu, Lei Jiang, Gehao Liang, Erwei Song, Yubao Zheng, Chang Gong
BACKGROUND & AIMS: Hepatitis B virus (HBV) reactivation during or after chemotherapy in breast cancer patients has become a remarkable clinical problem. Prophylactic nucleos(t)ide analogues (NAs) are recommended for breast cancer patients who are hepatitis B surface antigen (HBsAg) positive before chemotherapy. We performed an up-to-date meta-analysis to compare the efficacy of prophylactic lamivudine use with non-prophylaxis in HBsAg positive breast cancer patients undergoing chemotherapy...
January 10, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/28070010/low-level-of-hepatitis-b-virus-infection-in-children-20-years-after-initiation-of-infant-vaccination-program-in-wallis-and-futuna
#11
Lorenzo Pezzoli, Jean Pierre Mathelin, Karen Hennessey, Padmasiri Eswara-Aratchige, Jayaprakash Valiakolleri, Sung Hye Kim
The prevalence of hepatitis B virus (HBV) in Wallis and Futuna (WAF) was one of the highest in the Pacific and was the driving factor for introducing hepatitis B (HepB) vaccination in 1992 and HepB birth dose (HepB-BD) in 2006. Using transmission assessment survey (TAS) as a survey platform for eliminating lymphatic filariasis (LF), we assessed HBV surface antigen (HBsAg) seroprevalence, HepB vaccination coverage, and its timeliness among schoolchildren in WAF. From one finger prick of all registered fourth and fifth grade students, we tested HBsAg and filariasis antigen simultaneously, and estimated HepB vaccination coverage and timeliness by reviewing students' immunization cards...
January 9, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28069363/adolescent-booster-with-hepatitis-b-virus-vaccines-decreases-hbv-infection-in-high-risk-adults
#12
Yuting Wang, Taoyang Chen, Ling-Ling Lu, Minjie Wang, Dongmei Wang, Hongyu Yao, Chunsun Fan, Jun Qi, Yawei Zhang, Chunfeng Qu
BACKGROUND: Neutralizing antibodies (anti-HBs) after immunization with hepatitis B virus (HBV) vaccines against HBV surface antigen (HBsAg) wane after 10-15years. We analyzed the effect of an adolescent booster given to vaccination-protected children born to mothers with different HBsAg-carrying status against HBV infection in their mature adulthood. METHODS: A total of 9793 individuals, who were HBsAg-negative at childhood (baseline) and donated blood samples, both during childhood and adulthood, from the vaccination group in "Qidong Hepatitis B Intervention Study", were enrolled...
January 6, 2017: Vaccine
https://www.readbyqxmd.com/read/28065199/long-term-effectiveness-of-plasma-derived-hepatitis-b-vaccine-22-28-years-after-immunization-in-a-hepatitis-b-virus-endemic-rural-area-is-an-adult-booster-dose-needed
#13
H Li, G J Li, Q Y Chen, Z L Fang, X Y Wang, C Tan, Q L Yang, F Z Wang, F Wang, S Zhang, S L Bi, L P Shen
Longan County is considered a highly endemic area for hepatitis B virus (HBV). The plasma-derived vaccine has been used in newborns in this area since 1987. A cross-sectional survey was conducted to evaluate the long-term effectiveness of this vaccine. In total, 1634 participants born during 1987-1993 and who had received a series of plasma-derived HB vaccinations at ages 0, 1, and 6 months were enrolled. Serological HBV markers were detected and compared with previous survey data. Overall the prevalence of hepatitis B surface antigen (HBsAg) in all participants was 3·79%; 3·47% of subjects who had received the first dose within 24 h were HBsAg positive, and 8·41% of subjects who had received a delayed first dose were also HBsAg positive...
January 9, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28064294/primary-versus-secondary-immune-thrombocytopenia-in-adults-a-comparative-analysis-of-clinical-and-laboratory-attributes-in-newly-diagnosed-patients-in-southern-pakistan
#14
S Sultan, S J Ahmed, S Murad, S M Irfan
BACKGROUND: Immune thrombocytopenic purpura (ITP) is a hemorrhagic diathesis, characterized by platelets destruction alongside impaired production. Patients from Asian regions often exhibit distinctive characteristics in comparison to the western patients. We accomplished this study to evaluate the prevalence of primary versus secondary ITP along with the comparative analysis between them. The secondary objective was to determine the etiological spectrum of secondary ITP. METHODS: We illustrate the results of a large cohort of newly diagnosed adults ITP from southern Pakistan...
October 2016: Medical Journal of Malaysia
https://www.readbyqxmd.com/read/28063995/activation-of-tnf-%C3%AE-aid-axis-and-co-inhibitory-signals-in-coordination-with-th1-type-immunity-in-a-mouse-model-recapitulating-hepatitis-b
#15
Tomonori Matsumoto, Ken Takahashi, Tadashi Inuzuka, Soo Ki Kim, Tomoaki Kurosaki, Shigeru Kawakami, Tsutomu Chiba, Hiroshi Seno, Hiroyuki Marusawa
Hepatitis B virus (HBV) infection evokes host immune responses that primarily determine the outcome of HBV infection and the clinical features of HBV-associated liver disease. The precise mechanisms by which host factors restrict HBV replication, however, are poorly understood due to the lack of useful animal models that recapitulate immune responses to HBV. Here, we performed comprehensive immunologic gene expression profiling of the liver of a mouse model recapitulating anti-HBV immune response using a high sensitivity direct digital counting system...
January 5, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28063964/impact-of-hepatitis-b-core-antibody-hbcab-seropositivity-on-the-outcome-of-autologous-hematopoietic-stem-cell-transplantation-for-multiple-myeloma
#16
Ankur Varma, Laura Biritxinaga, Rima M Saliba, Maximilian Stich, Sarah Francesca Jauch, Aimaz Afrough, Medhavi Honhar, Uday R Popat, Mehnaz A Shafi, Nina Shah, Qaiser Bashir, Yvonne Dinh, Chitra Hosing, Richard E Champlin, Muzaffar H Qazilbash
Hepatitis B core antibody (HBcAb) seropositivity has been associated with a higher rate of hepatitis B virus (HBV) reactivation after chemotherapy, even in patients who are hepatitis B surface antigen (HBsAg) negative. However, little is known about the risk of HBV reactivation after autologous hematopoietic stem cell transplantation (auto-HCT). We evaluated the incidence of HBV reactivation, liver toxicity and survival in patients with multiple myeloma (MM) who received auto-HCT at our institution. We retrospectively identified 107 MM patients with resolved HBV infection (HBcAb positive, HBsAg negative) and 125 patients with negative HBV serology (controls) who were matched for age, timing of auto-HCT from diagnosis, cytogenetics, disease status at transplant, induction therapy, and preparative regimen...
January 4, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28061318/hepatitis-b-surface-antigen-promotes-the-invasion-of-hepatitis-b-virus-related-hepatocellular-carcinoma-cells-by-upregulation-of-toll-like-receptor-2
#17
Shan Cheng, Bin Zhang, Ji-Ying Du, Yu-Hong Jin, Hai-Yang Lang, Li-Hua Zeng
Hepatitis B virus (HBV) infection is one of the major risk factors leading to the development of hepatocellular carcinoma (HCC). Hepatitis B surface antigen (HBsAg) plays a pivotal role in HBV-related HCC pathogenesis, and Toll-like receptor (TLR) 2 is also considered to mediate tumor progression. However, the interaction between HBsAg and TLR2 in HCC progression remains unclear. Thus, the aim of the study was to explore the effect of HBsAg-TLR2 pathway on growth and invasion of HBV-related HCC cells and examine the potential mechanisms been involved...
January 6, 2017: Viral Immunology
https://www.readbyqxmd.com/read/28056881/hepatitis-b-virus-strains-from-rwandan-blood-donors-are-genetically-similar-and-form-one-clade-within-subgenotype-a1
#18
Theogene Twagirumugabe, Gatare Swaibu, Timothy David Walker, Magnus Lindh, Jean Bosco Gahutu, Tomas Bergström, Heléne Norder
BACKGROUND: Rwanda is a central African country with about 12 million inhabitants. The 1994 genocide against the Tutsi destroyed much of the infrastructure, including the health system. Although this has improved significantly, many challenges remain to be addressed. In this study, the prevalence of serological markers of past and ongoing hepatitis B virus (HBV) infection and HBV vaccine related immunity was investigated in samples from blood donors from all regions of Rwanda. METHODS: The results from hepatitis B surface antigen (HBsAg) analyses of all (45,061) blood donations collected countrywide in 2014 from 13,637 first time and 31,424 repeat blood donors were compiled...
January 6, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28056849/platelet-counts-modulate-the-quantitative-relationship-between-hepatitis-b-viral-dna-and-surface-antigen-concentrations-a-cross-sectional-study-of-hematological-histological-and-viral-factors
#19
Chao-Wei Hsu, Kung-Hao Liang, Chih-Lang Lin, Tong-Hong Wang, Chau-Ting Yeh
BACKGROUND: The concentrations of hepatitis B virus (HBV) DNA and surface antigen (HBsAg) are two critical virological variables to be monitored in chronic hepatitis B. HBsAg is derived from the HBV genome. Thus, higher HBV-DNA concentrations should implicate higher HBsAg levels. Nevertheless, the two variables do not manifest a simple linear relationship due to elusive host factor involvements. The aim of this study was to address the discrepancy of HBV DNA and HBsAg levels by a quantitative modeling of HBsAg concentrations...
January 5, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28056752/inhibiting-the-secretion-of-hepatitis-b-surface-antigen-hbsag-to-treat-hepatitis-b-infection-a-review
#20
Simon D Baugh
Chronic Hepatitis B is a major global health issue, and has no known cure. Currently there are over 240 million people infected with the disease, and it leads to the death of over 686,000 people each year. A total of seven treatments which help to control the disease are currently available: interferon-based treatments (pegasys, and interferon alpha), and nucleoside and nucleotide analogs (Viread, Baraclude, Tyzeka, Hepsera, Epivir-HBV), but all require continuing treatment to maintain control of the disease...
January 4, 2017: Infectious Disorders Drug Targets
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