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Sawsan Mahmoud, Hao Li, Tamara R McBrayer, Leda Bassit, Sherif F Hammad, Steven J Coats, Franck Amblard, Raymond F Schinazi
A novel series of tetrafluoro and hexafluoro acyclic nucleosides and their phosphoramidates were successfully prepared from commercially available 2,2,3,3-tetrafluoro-1,4-butanediol and 2,2,3,3,4,4-hexafluoro-1,5-pentanediol in four to six steps. Their ability to block HIV, HCV, HSV-1, and HBV replication along with their cytotoxicity toward HepG2, human lymphocyte, CEM, and Vero cells was assessed.
October 19, 2016: Nucleosides, Nucleotides & Nucleic Acids
A M Kurmanova, G M Kurmanova, V N Lokshin
The viral hepatitis abnormalities in the female reproductive system are due to hepatic and extrahepatic damage. On the background of HBV- and HCV-infections, menstrual disorders prevail in the structure of reproductive system pathology; disorders of reproductive function in the form of pregnancy loss and infertility are detected in each second case. Depression of T-cell immunity in the immune status is observed in the patients with intact reproductive function. When miscarriage was in past medical history then divergent changes subpopulations of lymphocytes are found...
October 2016: Gynecological Endocrinology
Yi Shen, Sheng Zhang, Xulin Wang, Yuanyuan Wang, Jian Zhang, Gang Qin, Wenchao Li, Kun Ding, Lei Zhang, Feng Liang
BACKGROUND: Because whether hepatitis B virus (HBV) infection increases the risk of type 2 diabetes mellitus (T2DM) has been a controversial topic, pair-wise and network meta-analyses of published literature were carried out to accurately evaluate the association between different phases of HBV infection and the risk of T2DM. METHODS: A comprehensive literature retrieval was conducted from the Pubmed, Embase, Cochrane Library, Chinese Database to identify epidemiological studies on the association between HBV infection and the risk of T2DM that were published from 1999 to 2015...
October 18, 2016: Liver International: Official Journal of the International Association for the Study of the Liver
Martha Ali Abdulai, Frank Baiden, George Adjei, Seth Owusu-Agyei
BACKGROUND: Over 2 billion people are infected with Hepatitis B virus (HBV) and about 240 million are chronic carriers of the virus. Chronic HBV infection is an important cause of liver cancer. The infectivity of HBV is hundred times higher than the HIV virus yet it receives comparatively little attention in public health. The study assessed knowledge and awareness of HBV among pregnant women in the Kintampo Municipality of Ghana. METHODS: A cross-sectional survey was conducted among pregnant women attending antenatal clinic in two facilities between September 2010 and November 2010...
September 2016: Ghana Medical Journal
Qing Wang, Andrea De Luca, Colette Smith, Robert Zangerle, Helen Sambatakou, Fabrice Bonnet, Colette Smit, Philipp Schommers, Alicia Thornton, Juan Berenguer, Lars Peters, Vincenzo Spagnuolo, Adriana Ammassari, Andrea Antinori, Eugenia Quiros Roldan, Cristina Mussini, Jose M Miro, Deborah Konopnicki, Jan Fehr, Maria A Campbell, Monique Termote, Heiner C Bucher
Background: Non-Hodgkin lymphoma (NHL) is the most common AIDS-defining condition in the era of antiretroviral therapy (ART). Whether chronic hepatitis B virus (HBV) and hepatitis C virus (HCV) infection promote NHL in HIV-infected patients is unclear. Objective: To investigate whether chronic HBV and HCV infection are associated with increased incidence of NHL in HIV-infected patients. Design: Cohort study. Setting: 18 of 33 cohorts from the Collaboration of Observational HIV Epidemiological Research Europe (COHERE)...
October 18, 2016: Annals of Internal Medicine
Azadeh Askari, Reza Nosratabadi, Mehdi Khaleghinia, Nahid Zainodini, Derek Kennedy, Ziba Shabani, Mohammad Kazemi Arababadi
Nucleotide-binding domain leucine repeats (NLRs) are required for the recognition of various molecules that are expressed within microbes and are able to actuate appropriate immune responses via activation of cytokines. The current study evaluates the expression levels of NLRP1 and NLRC4, which are components of inflammasomes, in chronic hepatitis B (CHB) virus-infected patients. This study recruited two series of CHB patients (each contained 60 patients) and 60 healthy controls. Real-time polymerase chain reaction (PCR) was employed to evaluate mRNA expression levels of NLRP1, NLRP3, and NLRC4 as well as hepatitis B virus (HBV)-DNA copy number...
October 17, 2016: Viral Immunology
Jian Huang, Lei Zhao, Ping Yang, Zhen Chen, Ni Tang, Xiong Z Ruan, Yaxi Chen
Hepatitis B virus (HBV) is a hepatocyte-specific DNA virus whose gene expression and replication are closely associated with hepatic metabolic processes. Thus, a potential anti-viral strategy is to target the host metabolic factors necessary for HBV gene expression and replication. Recent studies revealed that fatty acid translocase CD36 is involved in the replication, assembly, storage, and secretion of certain viruses, such as hepatitis C virus (HCV) and human immunodeficiency virus (HIV). However, the relationship between CD36 and the HBV life cycle remains unclear...
2016: PloS One
Xiaoshu Li, Fangyuan Gao, Huimin Liu, Henghui Zhang, Yao Liu, Xieqiong Ye, Mingfan Geng, Le Sun, Rui Wang, Yuxin Li, Yuyong Jiang, Xiaojing Wang, Guiqin Zhou, Zhiyun Yang, Ang Li, Hui Zeng, Xianbo Wang
AIM: Hepatitis B virus (HBV)-related acute-on-chronic liver failure (ACLF) has significant morbidity and mortality. There is no standard approach for the management of HBV-related ACLF with nucleos(t)ide analogs. Our objective was to compare the short-term mortality between entecavir (ETV) and lamivudine (LAM) in patients with HBV-related ACLF. METHODS: We recruited 311 inpatients with HBV-related ACLF from December 2002 to January 2015. The patients were treated with ETV (n=143) or LAM (n=168)...
October 4, 2016: European Journal of Gastroenterology & Hepatology
Ahmed E Arafa, Amel A Mohamed, Manal M Anwar
BACKGROUND AND PURPOSE: Blood-borne pathogens (BBP) [hepatitis B virus (HBV), hepatitis C virus (HCV), and HIV] pose a considerable infectious risk for nurses, resulting in unwanted health outcomes and psychological stress. AIM OF THE WORK: This study aimed to assess the knowledge and practices of nurses and define administrative roles regarding in BBP and infection control (IC) measures in selected Beni-Suef Hospitals. PARTICIPANTS AND METHODS: A cross-sectional study was carried out from December 2014 to January 2015 using a self-administered questionnaire...
September 2016: Journal of the Egyptian Public Health Association
Zhangmin Tan, Yuzhu Yin, Jin Zhou, Lingling Wu, Chengfang Xu, Hongying Hou
This prospective study evaluated the viability of telbivudine for blocking mother-to-child transmission (MTCT) of hepatitis B virus (HBV) infection.Pregnant women positive for the hepatitis B surface antigen began telbivudine treatment before 14 weeks of gestation (i.e., early), between 14 and 28 weeks of gestation (late), or not at all (control). In the late-treatment group, 55 women terminated telbivudine therapy within puerperium. All neonates underwent routine hepatitis B immunoglobulin plus vaccination...
October 2016: Medicine (Baltimore)
Ennio Polilli, Federica Sozio, Paola Di Stefano, Antonina Sciacca, Tamara Ursini, Maurizio Paoloni, Jacopo Vecchiet, Dante Di Giammartino, Maria Pina Sciotti, Alessandro Grimaldi, Valerio Cortesi, Paolo Fazii, Elena Ricci, Claudio D'Amario, Giuseppe Ippolito, Lucio Pippa, Giustino Parruti
Undiagnosed cases of HIV infection in developed countries are estimated at 20-30% of individuals living with HIV. Web-based strategies may represent a new approach to easier, wider, and unrestricted access to early testing. The Abruzzo Region, Italy, developed a Web-based tool to recruit persons at high risk of HIV and other sexually transmitted infections (STIs). At the Website , browsers found information on STIs (HIV, hepatitis B and C, and syphilis), a structured questionnaire called "risk calculator" to assess one's own risk behaviors and direct booking of their test at one of six sites throughout the region...
October 2016: AIDS Patient Care and STDs
Xu Shi, Ying Tang, Xiguang Sun, Yufei Liu, Ying Sun, Munan Sun, Yanfang Jiang, Yulin Li
The current study aimed to investigate the distribution of memory and naïve T cell (TN) subsets in hepatitis B virus (HBV)‑infected patients at different immune stages and investigate the effect of interleukin 33 (IL‑33) on the regulation of the T‑cell subsets. The distributions of memory and naïve T cells were detected by flow cytometry. ELISA was conducted to assess the levels of IL‑4, IL‑5, IL‑10, IL‑12, interferon γ and tumor necrosis factor α. The expression levels of IL‑33 and HBV x protein (HBx) were measured by reverse transcription‑quantitative polymerase chain reaction and western blot analysis, respectively...
October 13, 2016: Molecular Medicine Reports
Chao Liu, Shrinivas G Dumbre, Christophe Pannecouque, Chunsheng Huang, Roger G Ptak, Michael G Murray, Steven De Jonghe, Piet Herdewijn
The synthesis of four l-2'-deoxy-threose nucleoside phosphonates with the natural nucleobases adenine, thymine, cytosine, and guanosine has been performed. Especially the adenine containing analogue (PMDTA) was endowed with potent antiviral activity displaying an EC50 of 4.69 μM against HIV-1 and an EC50 value of 0.5 μM against HBV, whereas completely lacking cytotoxicity. The synthesis of a number of phosphonomonoamidate and phosphonobisamidate prodrugs of PMDTA led to a boost in antiviral potency. The most potent congeners were a l-aspartic acid diisoamyl ester phenoxy prodrug and a l-phenylalanine propyl ester phosphonobisamidate prodrug that both display anti-HIV and anti-HBV activities in the low nanomolar range and selectivity indexes of more than 300...
October 17, 2016: Journal of Medicinal Chemistry
Foram Maulin Patel, Parijath N Goswami
BACKGROUND & OBJECTIVES: Hepatitis delta virus (HDV) and hepatitis B virus (HBV) co-infection is well known to induce a spectrum of acute and chronic liver diseases. There has been global decline in the prevalence of hepatitis D infection. The aim of the present study was to know the presence of acute HDV infection among hepatitis B surface antigen (HBsAg) positive cancer patients. METHODS: A total of 5043 samples were subjected for routine testing of HBV, HIV and HCV by ELISA method...
June 2016: Indian Journal of Medical Research
Hitoshi Tajiri, Tomoko Takano, Hideo Tanaka, Kosuke Ushijima, Ayano Inui, Yoko Miyoshi, Keiichi Ozono, Daiki Abukawa, Takeshi Endo, Stephen Brooks, Yasuhito Tanaka
The aims of the study were to elucidate the clinical characteristics of patients who developed hepatocellular carcinoma (HCC) related to persistent HBV infection since childhood and to investigate usefulness of assessing alpha-fetoprotein (AFP) in this population. A nationwide multicenter survey of children with chronic HBV infection was performed. Among 548 patients, 15 patients developed HCC at the median age of 15 years (range 9-36), including 13 males and 2 females. A case-control comparison showed that HBeAg seroconversion and liver cirrhosis were associated with the occurrence of HCC...
October 17, 2016: Cancer Medicine
Shiv Kumar Sarin, Ashok Choudhury
Acute-on-chronic liver failure (ACLF) is a distinct entity that differs from acute liver failure and decompensated cirrhosis in timing, presence of treatable acute precipitant, and course of disease, with a potential for self-recovery. The core concept is acute deterioration of existing liver function in a patient of chronic liver disease with or without cirrhosis in response to an acute insult. The insult should be a hepatic one and presentation in the form of liver failure (jaundice, encephalopathy, coagulopathy, ascites) with or without extrahepatic organ failure in a defined time frame...
December 2016: Current Gastroenterology Reports
Vijay K Karra, Soumya J Chowdhury, Rajesh Ruttala, Sunil K Polipalli, Premashis Kar
BACKGROUND/OBJECTIVE: Quantification of serum hepatitis B antigen (HBsAg) is an important test that marks active infection with hepatitis B and helps in the prediction of the clinical outcome and management of hepatitis B virus (HBV) infection. Correlation with HBV DNA quantitative levels may help in developing strategies for antiviral treatment. This study is aimed to evaluate HBsAg titres in various phase of HBV infection in HBsAg positive patients, and its correlation with HBV DNA viral load levels...
September 2016: Journal of Clinical and Experimental Hepatology
Charles Béguelin, Darius Moradpour, Roland Sahli, Franziska Suter-Riniker, Alexander Lüthi, Matthias Cavassini, Huldrych F Günthard, Manuel Battegay, Enos Bernasconi, Patrick Schmid, Alexandra Calmy, Dominique Braun, Hansjakob Furrer, Andri Rauch, Gilles Wandeler
BACKGROUND AND AIMS: Hepatitis delta virus (HDV) infection accelerates the progression of hepatitis B virus (HBV)-related liver disease. We assessed the epidemiological characteristics of HDV infection in the nationwide Swiss HIV Cohort Study and evaluated its impact on clinical outcomes. METHODS: All HIV-infected patients with a positive HBsAg test were considered and tested for anti-HDV antibodies. HDV amplification and sequencing were performed in anti-HDV-positive patients...
October 13, 2016: Journal of Hepatology
Yuchen Xia, Arnaud Carpentier, Xiaoming Cheng, Peter Daniel Block, Yao Zhao, Zhensheng Zhang, Ulrike Protzer, T Jake Liang
BACKGROUND AND AIMS: One major obstacle of hepatitis B virus (HBV) research is the lack of efficient cell culture system permissive for viral infection and replication. The aim of our study was to establish a robust HBV infection model by using hepatocyte-like cells (HLCs) derived from human pluripotent stem cells. METHODS: HLCs were differentiated from human embryonic stem cells and induced pluripotent stem cells. Maturation of hepatocyte functions was determined...
October 13, 2016: Journal of Hepatology
Huaizhou Wang, Beiying Wu, Lei Li, Liang Hu, Jiafei Lin, Cen Jiang, Gang Cai, Qian Shen
Similar to programmed death-1 (PD-1), B and T lymphocyte attenuator (BTLA) is a co-inhibitory molecule of the CD28 family. PD-1 is involved in T cell exhaustion during chronic viral infection. However, the role of BTLA in virus-specific T cells is poorly defined. Here we investigated the expression and function of BTLA in T cells from patients with chronic hepatitis B virus (HBV) infection. The phenotype of peripheral and intrahepatic HBV-specific T cells from 43 patients with chronic HBV infection was assessed by flow cytometry...
October 6, 2016: Cellular Immunology
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