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Hepatitis b treatment adherence

Qingxia Yao, Karl P Fischer, D Lorne Tyrrell, Klaus S Gutfreund
Programmed death-1 (PD-1), upon engagement by its ligands, programmed death ligand-1 (PD-L1) and programmed death ligand-2 (PD-L2), provides signals that attenuate adaptive immune responses. Here we describe the identification of the Pekin duck PD-L2 (duPD-L2) and its gene structure. The duPD-L2 cDNA encodes a 321 amino acid protein that has an amino acid identity of 76% and 35% with chicken and human PD-L2, respectively. Mapping of the duPD-L2 cDNA with duck genomic sequences revealed an exonic structure similar to that of the human P dcd1lg2 gene...
March 2018: Biochemistry and Biophysics Reports
Jihane N Benhammou, Tien S Dong, Folasade P May, Jenna Kawamoto, Ram Dixit, Samuel Jackson, Vivek Dixit, Debika Bhattacharya, Steven B Han, Joseph R Pisegna
Hepatitis C virus (HCV) infection is a major cause of chronic liver disease. HCV cure has been linked to improved patient outcomes. In the era of direct-acting antivirals (DAAs), HCV cure has become the goal, as defined by sustained virological response 12 weeks (SVR12) after completion of therapy. Historically, African-Americans have had lower SVR12 rates compared to White people in the interferon era, which had been attributed to the high prevalence of non-CC interleukin 28B (IL28B) type. Less is known about the association between race/ethnicity and SVR12 in DAA-treated era...
April 2018: Pharmacology Research & Perspectives
Romina Quercia, Carlo-Federico Perno, Justin Koteff, Katy Moore, Cynthia McCoig, Marty St Clair, Daniel Kuritzkes
Innovation in medicine is a dynamic, complex, and continuous process that cannot be isolated to a single moment in time. Anniversaries offer opportunities to commemorate crucial discoveries of modern medicine, such as penicillin (1928), polio vaccination (inactivated, 1955; oral, 1961), the surface antigen of the hepatitis B virus (1967), monoclonal antibodies (1975), and the first HIV antiretroviral drugs (zidovudine, 1987). The advent of antiretroviral drugs has had a profound effect on the progress of the epidemiology of HIV infection, transforming a terminal, irreversible disease that caused a global health crisis into a treatable but chronic disease...
February 22, 2018: Journal of Acquired Immune Deficiency Syndromes: JAIDS
Kerui Xu, Li-Ming Liu, Paraskevi A Farazi, Hongmei Wang, Fedja A Rochling, Shinobu Watanabe-Galloway, Jian-Jun Zhang
BACKGROUND: Globally, of the 248 million people chronically infected with the hepatitis B virus (HBV), 74 million reside in China. Five oral nucleot(s)ide analogs (NUCs) have been approved for the treatment of chronic hepatitis B (CHB) in China. OBJECTIVES: The aims of this study were to determine rates of adherence to NUC therapy in patients with CHB, to identify the self-perceived barriers to adherence, and to examine the factors associated with adherence. METHODS: Questionnaire-based interviews were administered among Chinese patients with CHB at hepatology clinics of a tertiary hospital in the city of Wuhan, China...
2018: Global Health Action
Iulia A Neagu, Jason Olejarz, Mark Freeman, Daniel I S Rosenbloom, Martin A Nowak, Alison L Hill
Viral infections are one of the major causes of death worldwide, with HIV infection alone resulting in over 1.2 million casualties per year. Antiviral drugs are now being administered for a variety of viral infections, including HIV, hepatitis B and C, and influenza. These therapies target a specific phase of the virus's life cycle, yet their ultimate success depends on a variety of factors, such as adherence to a prescribed regimen and the emergence of viral drug resistance. The epidemiology and evolution of drug resistance have been extensively characterized, and it is generally assumed that drug resistance arises from mutations that alter the virus's susceptibility to the direct action of the drug...
February 2018: PLoS Computational Biology
Deyang Yu, Shany E Yang, Blake R Miller, Jaclyn A Wisinski, Dawn S Sherman, Jacqueline A Brinkman, Jay L Tomasiewicz, Nicole E Cummings, Michelle E Kimple, Vincent L Cryns, Dudley W Lamming
Obesity and diabetes are major challenges to global health, and there is an urgent need for interventions that promote weight loss. Dietary restriction of methionine promotes leanness and improves metabolic health in mice and humans. However, poor long-term adherence to this diet limits its translational potential. In this study, we develop a short-term methionine deprivation (MD) regimen that preferentially reduces fat mass, restoring normal body weight and glycemic control to diet-induced obese mice of both sexes...
January 30, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
Mary Jane Burton, Andrew C Voluse, Amee B Patel, Deborah Konkle-Parker
OBJECTIVES: To implement the widespread treatment of hepatitis C virus (HCV), validated self-report measures to assess medication adherence are needed for monitoring patients who are prescribed HCV direct-acting antivirals (DAAs). The Visual Analog Scale (VAS) is an efficient and well-validated tool for measuring adherence to antiretrovirals in human immunodeficiency virus populations. This study compared VAS scores with pill counts and serum levels of HCV RNA in a sample of HCV-infected veterans prescribed DAAs...
January 2018: Southern Medical Journal
Emin Ediz Tütüncü, Rahmet Güner, Yunus Gürbüz, Ayşe Kaya Kalem, Barış Öztürk, İmran Hasanoğlu, İrfan Şencan, Mehmet A Taşyaran
BACKGROUND: Adherence to medication is an important aspect of preventing drug resistance and treatment failure in patients receiving nucleos(t)ide analogues for chronic hepatitis B. AIMS: To assess adherence to nucleoside/nucleotide analogues in chronic hepatitis B treatment and to determine factors associated with non-adherence. STUDY DESIGN: Cross-sectional study. METHODS: The study enrolled 85 chronic hepatitis B patients who had been receiving nucleoside/nucleotide analogues for ≥3 months...
December 1, 2017: Balkan Medical Journal
Márcio Cristiano de Melo, Maria Rita Donalisio, Ricardo Carlos Cordeiro
The study investigates the survival of patients with co-infection AIDS-TB through a retrospective study of a cohort of individuals aged 13 or more and the diagnosis of AIDS reported in the years 1998-99 and following 10 years. Of the 2,091 AIDS cases, 517 (24.7%) had positive diagnosis for tuberculosis, and 379 (73.3%) were male. The risk among co-infected patients was 1,65 times the not co-infected. Have been compared the exposed and non-exposed through the Kaplan-Meier and Cox method. The variables associated with longer survival were: female gender (HR = 0...
November 2017: Ciência & Saúde Coletiva
Manuel Rodríguez, Juan Manuel Pascasio, Enrique Fraga, Javier Fuentes, Martín Prieto, Gloria Sánchez-Antolín, José Luis Calleja, Esther Molina, María Luisa García-Buey, María Ángeles Blanco, Javier Salmerón, María Lucía Bonet, José Antonio Pons, José Manuel González, Miguel Ángel Casado, Francisco Jorquera, The Tenosimp-B Research Group
AIM: To demonstrate the non-inferiority (15% non-inferiority limit) of monotherapy with tenofovir disoproxil fumarate (TDF) vs the combination of lamivudine (LAM) plus adefovir dipivoxil (ADV) in the maintenance of virologic response in patients with chronic hepatitis B (CHB) and prior failure with LAM. METHODS: This study was a Phase IV prospective, randomized, open, controlled study with 2 parallel groups (TDF and LAM+ADV) of adult patients with hepatitis B e antigen (HBeAg)-negative CHB, prior failure with LAM, on treatment with LAM+ADV for at least 6 mo, without prior resistance to ADV and with an undetectable viral load at the start of the study, in 14 Spanish hospitals...
November 7, 2017: World Journal of Gastroenterology: WJG
Joanna Maria Lotowska, Maria Elzbieta Sobaniec-Lotowska, Dariusz Marek Lebensztejn
PURPOSE: Activation of hepatic stellate cells (HSCs), mainly responsible for extracellular matrix synthesis, is assumed to be central event in the process of liver fibrogenesis. The major objective of the research was to analyze the ultrastructural profile of activated HSCs in children with chronic hepatitis B (chB), with respect to fibrosis intensity. MATERIALS/METHODS: Ultrastructural investigations of HSCs were conducted on liver bioptates from 70 children with clinicopathologically diagnosed chB before antiviral treatment...
November 6, 2017: Advances in Medical Sciences
N E Essomba, P G Ngaba, M P Halle, Y Afane-Voundi, Y Coppieters
Despite prevention efforts, and free treatment, TB-HIV co-infection still occurs in Cameroon. The objective of this work is to present the risk factors for mortality in patients co-infected with TB and HIV in Douala from 2009 to 2014. This transversal, analytic, and retrospective study took place from November 2014 to May 2015 in the Laquintinie Hospital in Douala. A review of our records identified patients aged at least 15 years, with this co-infection who received TB treatment, with or without antiretroviral agents...
August 1, 2017: Médecine et Santé Tropicales
Gautam Ray
Hepatitis B is a significant public health problem in India, yet disease awareness is very low among the general population. The disease is mostly acquired horizontally, but the role of vertical transmission should not be underestimated. In spite of the fact that the majority of cases are e negative disease, most patients present in the advanced stage and even with hepatocellular carcinoma, the leading cause of which is hepatitis B. High-risk groups (especially tribals) also harbour significant disease burden and have a high prevalence of occult infection, supporting the potential of unknowingly spreading the disease...
September 28, 2017: Journal of Clinical and Translational Hepatology
Pedro Cahn, Richard Kaplan, Paul E Sax, Kathleen Squires, Jean-Michel Molina, Anchalee Avihingsanon, Winai Ratanasuwan, Evelyn Rojas, Mohammed Rassool, Mark Bloch, Linos Vandekerckhove, Peter Ruane, Yazdan Yazdanpanah, Christine Katlama, Xia Xu, Anthony Rodgers, Lilly East, Larissa Wenning, Sandy Rawlins, Brenda Homony, Peter Sklar, Bach-Yen Nguyen, Randi Leavitt, Hedy Teppler
BACKGROUND: Once daily regimens are preferred for HIV-1 treatment, to facilitate adherence and improve quality of life. We compared a new once daily formulation of raltegravir to the currently marketed twice daily formulation. METHODS: In this randomised, double-blind, parallel-group, phase 3, non-inferiority study, we enrolled participants aged 18 years or older with HIV-1 RNA of 1000 or more copies per mL and no previous antiretroviral treatment at 139 sites worldwide...
November 2017: Lancet HIV
Paul E Sax, Anton Pozniak, M Luisa Montes, Ellen Koenig, Edwin DeJesus, Hans-Jürgen Stellbrink, Andrea Antinori, Kimberly Workowski, Jihad Slim, Jacques Reynes, Will Garner, Joseph Custodio, Kirsten White, Devi SenGupta, Andrew Cheng, Erin Quirk
BACKGROUND: Integrase strand transfer inhibitors (INSTIs) coadministered with two nucleoside or nucleotide reverse transcriptase inhibitors (NRTIs) are recommended as first-line treatment for HIV, and coformulated fixed-dose combinations are preferred to facilitate adherence. We report 48-week results from a study comparing initial HIV-1 treatment with bictegravir-a novel INSTI with a high in-vitro barrier to resistance and low potential as a perpetrator or victim of clinically relevant drug interactions-coformulated with the NRTI combination emtricitabine and tenofovir alafenamide as a fixed-dose combination to dolutegravir administered with coformulated emtricitabine and tenofovir alafenamide...
November 4, 2017: Lancet
Elizabeth M Ward, Christopher R Flowers, Ted Gansler, Saad B Omer, Robert A Bednarczyk
Answer questions and earn CME/CNE A measles outbreak originating in California during 2014 and 2015 called attention to the potential for infectious disease outbreaks related to underimmunized populations in the United States and the potential risk to pediatric patients with cancer attending school when such outbreaks occur. Compliance with vaccine recommendations is important for the prevention of hepatitis B-related and human papillomavirus-related cancers and for protecting immunocompromised patients with cancer, and these points are often overlooked, resulting in the continued occurrence of vaccine-preventable neoplastic and infectious diseases and complications...
September 2017: CA: a Cancer Journal for Clinicians
Tim R Cressey, Oraphan Siriprakaisil, Virat Klinbuayaem, Justice Quame-Amaglo, Rachel W Kubiak, Pra-Ornsuda Sukrakanchana, Kanchana Than-In-At, Jared Baeten, Wasna Sirirungsi, Ratchada Cressey, Paul K Drain
BACKGROUND: Tenofovir disoproxil fumarate (TDF) is key component of pre-exposure prophylaxis (PrEP) and antiretroviral therapy (ART) for HIV, but existing tools to monitor drug adherence are often inaccurate. Detection of tenofovir (TFV) in accessible biological samples, such as fingerprick blood, urine or oral fluid samples could be a novel objective measure of recent TDF adherence. To measure TFV concentrations associated with different levels of TDF adherence, we designed a randomized clinical trial to assess the blood, urine and oral fluid concentrations of TFV in adults with perfect, moderate and low drug adherence...
July 14, 2017: BMC Infectious Diseases
Evan B Cunningham, Behzad Hajarizadeh, Olav Dalgard, Janaki Amin, Margaret Hellard, Graham R Foster, Philip Bruggmann, Brian Conway, Markus Backmund, Geert Robaeys, Tracy Swan, Philippa S Marks, Sophie Quiene, Tanya L Applegate, Martin Weltman, David Shaw, Adrian Dunlop, Julie Bruneau, Håvard Midgard, Stefan Bourgeois, Maria Christine Thurnheer, Gregory J Dore, Jason Grebely
BACKGROUND: The aims of this analysis were to investigate treatment completion and adherence among people with ongoing injecting drug use or receiving opioid substitution therapy (OST) in a study of response-guided therapy for chronic HCV genotypes 2/3 infection. METHODS: ACTIVATE was a multicenter clinical trial recruited between 2012 and 2014. Participants with genotypes 2/3 were treated with directly observed peg-interferon alfa-2b (PEG-IFN) and self-administered ribavirin for 12 (undetectable HCV RNA at week 4) or 24 weeks (detectable HCV RNA at week 4)...
June 13, 2017: BMC Infectious Diseases
Suzanne Polis, Iryna Zablotska-Manos, Amany Zekry, Lisa Maher
Hepatitis B virus (HBV) antiviral therapies potentially suppress HBV viral load to an undetectable level reducing the risk of progressive liver disease and the development of HBV-related hepatocellular carcinoma. Adherence to antiviral therapies is imperative to achieve and maintain viral suppression. To date, there has been limited research on adherence to HBV therapies. Our study aimed to explore factors influencing adherence to antiviral therapy. A total of 29 participants consented to in-depth qualitative interviews at three outpatient clinics in Sydney, New South Wales, Australia...
May 2017: Gastroenterology Nursing: the Official Journal of the Society of Gastroenterology Nurses and Associates
Guosheng Yuan, Chengguang Hu, Yuchen Zhou, Junwei Liu, Huaping Huang, Yuan Li, Dinghua Yang, Fuyuan Zhou, Yong-Yuan Zhang, Yuanping Zhou
AIMS: Little clinical data are available regarding re-establishing the effective inhibition of entecavir (ETV)-resistant mutants. In this retrospective study, we aimed to compare the efficacies of four treatment regimens as rescue therapy for those chronic hepatitis B (CHB) patients with ETV resistance. METHODS: A total of 65 patients with ETV resistance were assigned either with tenofovir disoproxil fumarate (TDF) monotherapy (n = 21), ETV (0.5 mg) plus adefovir (ADV) combination therapy (n = 19), ETV (1...
October 2017: British Journal of Clinical Pharmacology
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