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https://www.readbyqxmd.com/read/28641561/induction-of-humoral-and-cellular-immune-responses-in-mice-by-multiepitope-vaccines-composing-of-both-t-and-b-lymphocyte-epitopes-of-mage-a3which-are-recombined-into-hbcag
#1
Qingxin Chen, Wenshu Li, Pengfei Wang, Huanyi Shao, Yujie Ding, Wenhuan Wang, Danwei Cen, Yiqi Cai, Xiangyang Xue, Lifang Zhang, Guanbao Zhu
MAGE-A3 is highly expressed in many kinds of malignant diseases, and considered to be an ideal candidate for anti-tumor vaccine. To improve the immunogenicity of epitopes of MAGE-A3, hepatitis B virus core antigen (HBcAg) was used as an immune-carrier by insertion epitopes at HBcAg major immunodominant region (HBcAg(MIR)). In present study, we designed three kinds of MAGE-A3 multiepitopes containing T and B-cell dominant epitope-rich peptides, and constructed three recombinant chimeras of HBcAg(MIR)/MAGE-A3(EPI-1), HBcAg(MIR)/MAGE-A3(EPI-2), and HBcAg(MIR)/MAGE-A3(EPI-3) with prokaryotic codon optimization...
June 20, 2017: Protein and Peptide Letters
https://www.readbyqxmd.com/read/28641071/giving-it-our-best-shot-human-papillomavirus-and-hepatitis-b-virus-immunization-among-refugees-massachusetts-2011-2013
#2
Rachel Stein Berman, Laura Smock, Megan H Bair-Merritt, Jennifer Cochran, Paul L Geltman
INTRODUCTION: The receipt rate of hepatitis B virus vaccine among adolescents in the United States is high, while the receipt rate of human papillomavirus vaccine is low. Rates have not been closely studied among refugees, whose home countries have high rates of disease caused by these viruses. METHODS: We examined human papillomavirus and hepatitis B virus immunization rates among 2,269 refugees aged 9 to 26 years who resettled in Massachusetts from 2011 through 2013...
June 22, 2017: Preventing Chronic Disease
https://www.readbyqxmd.com/read/28639095/knowledge-awareness-and-prevention-of-hepatitis-b-virus-infection-among-korean-american-parents
#3
Sarah Hyun, Seulgi Lee, William R Ventura, Joseph McMenamin
Hepatitis B (HB) affects 240 million people around the world, and children and young adults make up a large proportion of the infected population. Approximately 1 million people die from HB each year. Despite the seriousness of HB and its complications, many are poorly linked to clinical care. A lack of health literacy may be a critical barrier hindering access to HB care for adults as well as children in these populations. We, therefore, performed a survey to assess the level of knowledge of HB among Korean American parents...
June 21, 2017: Journal of Immigrant and Minority Health
https://www.readbyqxmd.com/read/28636784/audio-computer-assisted-survey-interview-and-patient-navigation-to-increase-chronic-viral-hepatitis-diagnosis-and-linkage-to-care-in-urban-health-clinics
#4
A N de la Torre, I Castaneda, M Ahmad, N Ekholy, N Tham, I B Herrera, P Beaty, R J Malapero, Farhan Ayoub, J Slim, M B Johnson
Intravenous drug use and sexual practices account for 60% of hepatitis C (HCV) and B (HBV) infection. Disclosing these activities can be embarrassing, reduce risk reporting, blood testing and diagnosis. In diagnosed patients, linkage to care remains a challenge. Audio-computer assisted survey interview (Audio-CASI) was used to guide HCV and HBV infection testing in urban clinics. Risk reporting, blood-testing, and serology results were compared to historical controls. A Patient Navigator (PN) followed up blood test results and provided patients with positive serology linkage to care...
June 21, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/28631044/-personalized-treatment-of-viral-hepatitis-of-the-present-and-the-future-hepatitis%C3%A2-b-c-delta-and-e
#5
REVIEW
R Bartenschlager, M Cornberg, T Pietschmann
Precision medicine is also possible for infectious diseases as shown for the treatment of chronic viral hepatitis, especially if different options are available. In hepatitis B virus (HBV) infection, treatment indication as well as the choice of treatment and the decisions to stop treatment are based on viral markers and alanine aminotransferase (ALT) level. Future therapies for HBV infection aiming for functional cure or even virus elimination may be even more personalized and have to take into account the immune status of a given patient...
June 19, 2017: Der Internist
https://www.readbyqxmd.com/read/28627094/-spectrum-of-hepatitis-b-and-renal-involvement
#6
Apurva S Shah, Deepak N Amarapurkar
Renal involvement in hepatitis B occurs in various spectrums and its knowledge is important for clinicians in management of patients. The renal diseases most commonly associated with hepatitis B virus (HBV) infection include membranous nephropathy, membranoproliferative glomerulonephritis, and Polyarteritis nodosa. The widespread use of hepatitis B vaccination has decreased the incidence of HBV-related renal diseases. The incidence of HBV infection in dialysis patients has significantly decreased over the past few decades due to screening of blood products for hepatitis B surface antigen (HBsAg) and hepatitis B core antibody, implementation of infection control measures and hepatitis B vaccination...
June 19, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28624307/safety-and-immune-response-to-a-challenge-dose-of-hepatitis-b-vaccine-in-healthy-children-primed-10years-earlier-with-hexavalent-vaccines-in-a-3-5-11-month-schedule-an-open-label-controlled-multicentre-trial-in-italy
#7
Alessandro Zanetti, Maria Giuseppina Desole, Luisa Romanò, Antonio d'Alessandro, Michele Conversano, Giuseppe Ferrera, Maria Grazia Panico, Alberto Tomasi, Giorgio Zoppi, Massimo Zuliani, Stéphane Thomas, Benoît Soubeyrand, Cécile Eymin, Stephen Lockhart
BACKGROUND AND AIMS: The strategy of vaccinating infants to prevent hepatitis B virus infection in adolescence or adulthood requires durable immunity. This study investigated responses to a challenge dose of monovalent hepatitis B vaccine in children primed with three doses of either Hexavac® or Infanrix hexa® 10years earlier during infancy. METHODS: This open-label, controlled, multicentre study conducted in Italy, enrolled 751 healthy pre-adolescents (aged 11-13years) who were given either Hexavac (n=409) or Infanrix hexa (n=342) at 3, 5 and 11months of life...
June 14, 2017: Vaccine
https://www.readbyqxmd.com/read/28620716/factors-affecting-responsiveness-to-hepatitis-b-immunization-in-dialysis-patients
#8
Ali Asan, Huriye Demirhan, Hülya Çetin Sorkun, Sevgi Özkan, Mehtap Aydın, Davut Akın, Bengü Tatar, Binali Çatak, Alper Şener, Şükran Köse
BACKGROUND: Hepatitis B virus (HBV) and hepatitis C virus (HCV) infections are widespread health problems all over the world and have high morbidity and mortality. Hemodialysis patients are more frequently exposed to these viruses as they have poor immune system and frequently undergo parenteral interventions. The vaccination against HBV prevents infection and it has been recommended for the prevention of HBV infection in all susceptible dialysis patients. This study aimed to determine the seroprevalence of HBV and HCV infections and analyzed the factors affecting inadequate response to HBV vaccine in dialysis patients...
June 15, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28617973/hepatitis-b-virus-infection-in-preconception-period-among-women-of-reproductive-age-in-rural-china-a-nationwide-study
#9
Qiongjie Zhou, Xiaotian Li, Qiaomei Wang, Haiping Shen, Yiping Zhang, Shikun Zhang, Ganesh Acharya
BACKGROUND: Hepatitis B virus (HBV) infection during pregnancy is associated with perinatal complications and poor maternal and fetal outcomes. There is a lack of reports on HBV infection screening, prophylaxis, and/or treatment in preconception period among women planning a pregnancy. This study is to investigate the prevalence and demographic characteristics of HBV infection among rural women of reproductive age planning pregnancy within 6 months, in different geographical regions of China...
June 15, 2017: Paediatric and Perinatal Epidemiology
https://www.readbyqxmd.com/read/28612569/-negative-hbsag-and-hbsab-in-women-of-child-bearing-age-in-mianyang
#10
Xiao-Hua Wen, Chuan Xiao, Min Wang, Lan Wang, Juan Wang, Tao Ren, Li-Ping Wang, Shu-Wen Cheng, Xuan Zhang, Wen-Hao Zhang, Ping Yuan
OBJECTIVES: To investigate the distribution of women with negative HBsAg and HBsAb at child-bearing age in Mianyang. METHODS: A total of 62 551 women aged 15-49 yr. were selected randomly using a multistage sampling strategy in Mianyang to participate in a questionnaire survey. Blood samples were collected during the survey. HBsAg and HBsAb were detected by enzyme-linked immunosorbent assay (ELISA). Those who were both HBsAg and HBsAb negative were deemed as susceptible to future infection of HBV...
January 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28612568/-a-cross-sectional-study-of-hepatitis-b-virus-infection-in-mianyang-sichuan-province
#11
Na-Na Xi, Zong-Li Zuo, Su-Su Long, Yuan-Ji Ma, Ju-Ying Zhang
OBJECTIVES: To determine the prevalence and distribution of hepatitis B virus (HBV) infection in Mianyang. METHODS: Data were extracted from the 12th five-year National Science and Technology Major Projects-Integrated Prevention and Control of Major Infectious Diseases in Mianyang. A two-level logistic regression model was established to determine factors associated with HBV infection. RESULTS: About 4.91% of people in Mianyang were HBsAg positive, which increased with age...
January 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28611341/prevalence-and-molecular-characterization-of-hepatitis-d-virus-in-saudi-arabia-a-single-center-study
#12
Ghazi A Jamjoom, Mai M El-Daly, Esam I Azhar, Hind I Fallatah, Hisham O Akbar, Mohammed Babatin, Abdullah S Alghamdi, Mohammed I Dgdgi, Mohamed A Hamid, Yousef A Qari, Sherif A El-Kafrawy
BACKGROUND/AIMS: Hepatitis D virus (HDV) is a defective RNA virus that is dependent on hepatitis B surface antigen (HBsAg) for transmission and replication. HDV significance arises from the possibility of poor prognosis of hepatitis B virus (HBV) infection. In Saudi Arabia, HDV prevalence varied from 8 to 32% before the HBV vaccination program and ranged from 0 to 14.7% after the vaccination program was started. The last study, performed in 2004, showed a prevalence of 8.6% in hospital-based HBV cases and 3...
May 2017: Saudi Journal of Gastroenterology: Official Journal of the Saudi Gastroenterology Association
https://www.readbyqxmd.com/read/28608566/influence-of-universal-hbv-vaccination-on-chronic-hbv-infection-in-italy-results-of-a-cross-sectional-multicentre-study
#13
Evangelista Sagnelli, Tommaso Stroffolini, Caterina Sagnelli, Filomena Morisco, Nicola Coppola, Antonina Smedile, Mariantonietta Pisaturo, Guido Colloredo, Sergio Babudieri, Anna Licata, Giuseppina Brancaccio, Angelo Andriulli, Piero Luigi Almasio, Giovani Battista Gaeta, Bruno Cacopardo, Guido Colloredo, Nicola Coppola, Massimo De Luca, Caterina Furlan, Mario Pirisi, Floriano Rosina, Teresa Santantonio
Background and Aim The universal hepatitis B vaccination for infants and 12-year-old adolescents (the latter limited to the first 12 years of application) was launched in Italy in 1991. Twenty-three years later we evaluated the impact of the vaccination campaign on the burden of HBsAg-positive chronic liver diseases (CLD). Material and Methods 513 HBsAg-positive chronic carriers referring to 16 Italian liver units were investigated and compared with HBsAg carriers enrolled in previous surveys. Results The proportion of inactive carriers decreased from 20...
June 13, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28606133/employment-related-difficulties-and-distressed-living-condition-in-patients-with-hepatitis-b-virus-a-qualitative-and-quantitative-study
#14
Taeko Oka, Hiroaki Enoki, Yukari Tokimoto, Teruaki Kawanishi, Meguru Minami, Takahiro Okuizumi, Kiyohiko Katahira
BACKGROUND: In Japan, an estimated 400,000 people have the hepatitis B virus (HBV), many of whom were infected as a result of group vaccinations. People with HBV face many challenges, including disease progression, employment-related difficulties, and increased medical expenses. The relationship between HBV victims' daily life suffering and poverty associated with HBV-related employment changes has not been examined. We aimed to clarify the employment-related hardships experienced by Japanese HBV victims, and the relationships between these hardships and daily life suffering, including poverty, through qualitative and quantitative analyses...
June 12, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28602603/what-might-we-learn-from-the-more-successful-uptake-of-hepatitis-b-hbv-vaccinations-to-increase-human-papillomavirus-hpv-vaccinations-in-adolescents
#15
https://www.readbyqxmd.com/read/28601634/synthesis-and-assembly-of-hepatitis-b-virus-envelope-protein-derived-particles-in-escherichia-coli
#16
Hao Li, Keisuke Onbe, Qiushi Liu, Masumi Iijima, Kenji Tatematsu, Masaharu Seno, Hiroko Tada, Shun' Ichi Kuroda
Hepatitis B virus (HBV) envelope particles have been synthesized in eukaryotic cells (e.g., mammalian cells, insect cells, and yeast cells) as an HB vaccine immunogen and drug delivery system (DDS) nanocarrier. Many researchers had made attempts to synthesize the particles in Escherichia coli for minimize the cost and time for producing HBV envelope particles, but the protein was too deleterious to be synthesized in E. coli. In this study, we generated deletion mutants of HBV envelope L protein (389 amino acid residues (aa)) containing three transmembrane domains (TM1, TM2, TM3)...
June 7, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28600703/prevalence-of-s-gene-mutations-within-the-major-hydrophilic-region-of-hepatitis-b-virus-in-patients-in-dongguan-southern-china
#17
Siping Li, Mingyu Xie, Wenrui Li, Qi Peng, Baimao Zhong, Xiaomei Lu, Qiang Ma
HBsAg point mutations within the major hydrophilic region (MHR) have frequently been reported to be associated with diagnostic failure, vaccine escape and immunotherapy escape. However, the prevalence of escape mutations in chronic hepatitis B (CHB) patients has not been systematically studied in patients from southern China within the past decade. This study aimed to determine the prevalence of escape mutations within the MHR of hepatitis B virus in patients in Dongguan, southern China. Between June 2015 and May 2016, 391 patients who were chronically infected with HBV were enrolled in the study, including 240 patients with the genotype B strain and 151 with the genotype C strain...
June 9, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28598970/seroprevalence-and-clinical-characteristics-of-viral-hepatitis-in-transfusion-dependent-thalassemia-and-hemophilia-patients
#18
Tyng-Yuan Jang, Pei-Chin Lin, Ching-I Huang, Yu-Mei Liao, Ming-Lun Yeh, Yu-Sheng Zeng, Po-Cheng Liang, Wan-Yi Hsu, Shih-Pien Tsai, Zu-Yau Lin, Shinn-Cherng Chen, Jee-Fu Huang, Chia-Yen Dai, Chung-Feng Huang, Shyh-Shin Chiou, Wan-Long Chuang, Ming-Lung Yu
BACKGROUND/AIMS: Transfusion dependent subjects are at a great risk of viral hepatitis infection. We aimed to evaluate the prevalence and factors associated with hepatitis B virus (HBV) and hepatitis C virus (HCV) infection among transfusion-dependent patients in Taiwan. METHODS: A total of 140 patients (67 thalassemic patients, 70 hemophilic patients, two patients with hereditary spherocytosis and one patient with von Willebrand disease) were prospectively enrolled to evaluate the prevalence and factors associated with viral hepatitis and spontaneous HCV clearance...
2017: PloS One
https://www.readbyqxmd.com/read/28598793/croi-2017-highlights-of-advances-in-viral-hepatitis-and-liver-fibrosis
#19
Anne F Luetkemeyer, David L Wyles
At the 2017 Conference on Retroviruses and Opportunistic Infections (CROI) in Seattle, Washington, hepatitis C virus (HCV) infection was a major focus in the context of HIV-associated liver disease. Well-tolerated direct-acting antiviral (DAA) regimens have enabled effective treatment of the populations that are hardest to cure, including those with decompensated cirrhosis, and many studies examined the impact of HCV cure on hepatitis and extrahepatic outcomes. Scaling up access to DAA, and the impact that their universal availability can have on reducing prevalence were key topics...
May 2017: Topics in Antiviral Medicine
https://www.readbyqxmd.com/read/28596186/hepatitis-b-virus-testing-and-linkage-to-care-in-a-canadian-urban-tertiary-referral-centre-a-retrospective-cohort-study
#20
Keith C K Lau, Abdel Aziz Shaheen, Alexander A Aspinall, Tazuko Ricento Ba, Kamran Qureshi Mba, Stephen E Congly, Meredith A Borman, Saumya Jayakumar, Bertus Eksteen, Samuel S Lee, Laura Stinton, Mark G Swain, Kelly W Burak, Carla S Coffin
BACKGROUND: Despite universal vaccination, chronic hepatitis B virus (HBV) infection remains a public health concern in North America owing to immigration. We aimed to characterize the number of people with a positive result of testing for HBV surface antigen (HBsAg) in Calgary, a large urban Canadian health care region, and to assess whether recommended laboratory tests and specialist consultation were done for those identified as HBsAg-positive. METHODS: Based on laboratory and Alberta Health Services administrative data, we identified all adults (age > 18 yr) with a positive HBsAg test result from Jan...
June 6, 2017: CMAJ Open
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