Resistance To Direct Acting Antiviral Agents In Treatment Of Hepatitis C Virus Infections

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Resistance to Direct-Acting Antiviral Agents in Treatment of Hepatitis C Virus Infections

Author : Mostafa K.
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (115 download)

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Book Synopsis Resistance to Direct-Acting Antiviral Agents in Treatment of Hepatitis C Virus Infections by : Mostafa K.

Download or read book Resistance to Direct-Acting Antiviral Agents in Treatment of Hepatitis C Virus Infections written by Mostafa K. and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Compounds targeting nonstructural (NS) proteins of hepatitis C virus (HCV) demonstrate clinical promise, suggesting that NS3/NS4a, NS5A, or NS5B inhibitors are potential components in direct-acting antiviral (DAA) combination therapies. In vitro studies revealed dramatic inhibition of viral replication or alteration in subcellular localization of NS proteins. DAAs bind either to catalytic sites (NS3 and NS5B) or to domain-1 of NS5A. Although >90% of the patients clear HCV RNA from their sera, a significant portion of cirrhotic patients suffer from resistance or virological relapse. Mutations in specific residues (Q80K) in NS3 (M28, A30, L31, and Y93 in genotypes 1a and 1b or L28, L30, M31, and Y93 in genotype 4) in NS5A and A282T in NS5B are associated with resistance to DAA [resistance-associated variants (RAVs)]. Current knowledge on the NS functions, mode of action of DAAs, and impacts of RAVs on treatment response are discussed. Not only mutations affecting the binding of DAAs to target proteins but also substitutions affecting the replication fitness of mutant quasispecies are major determinants of treatment failures. These resistance-associated substitutions (RASs) are now considered the major viral mutants that influence the virological outcome after DAA treatment.

Hepatitis C Virus Treatment

Author : Kazuaki Chayama
Publisher : Springer
ISBN 13 : 9811024162
Total Pages : 80 pages
Book Rating : 4.8/5 (11 download)

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Book Synopsis Hepatitis C Virus Treatment by : Kazuaki Chayama

Download or read book Hepatitis C Virus Treatment written by Kazuaki Chayama and published by Springer. This book was released on 2016-11-01 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces readers to Direct Acting Antiviral (DAAs) agents, newly developed drugs to treat chronic hepatitis C virus infection, which have an excellent anti-viral effect on virus replication. These drugs have been developed to enhance the effect of interferon and ribavirin, as the resistant strains against each drug have been described both in vitro and in vivo and the existences of naturally occurring variants have been reported. However, since the combination of different classes of DAAs is sufficient to completely eradicate the virus without the need for interferon or ribavirin, the current treatment regimen does not include interferon. Ribavirin is used in combination with sofosbuvir, a potent polymerase inhibitor, to enhance its antiviral effects. Hepatitis C Virus Treatment offers readers a comprehensive guide to hepatitis C; describing the resistance profiles against these drugs and shedding light on the difficulties involved in DAA therapy and the direction of future treatments, it will equip doctors to understand the essentials of treating the disease. It also describes in detail new and innovative DAA treatments, the effects of the agents, and the characteristics of resistance, providing cutting-edge information not only for hepatologists, but also for researchers, clinical residents, and medical students.

Eliminating the Public Health Problem of Hepatitis B and C in the United States

Author : National Academies of Sciences, Engineering, and Medicine
Publisher : National Academies Press
ISBN 13 : 0309438020
Total Pages : 187 pages
Book Rating : 4.3/5 (94 download)

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Book Synopsis Eliminating the Public Health Problem of Hepatitis B and C in the United States by : National Academies of Sciences, Engineering, and Medicine

Download or read book Eliminating the Public Health Problem of Hepatitis B and C in the United States written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2016-06-01 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hepatitis B and C cause most cases of hepatitis in the United States and the world. The two diseases account for about a million deaths a year and 78 percent of world's hepatocellular carcinoma and more than half of all fatal cirrhosis. In 2013 viral hepatitis, of which hepatitis B virus (HBV) and hepatitis C virus (HCV) are the most common types, surpassed HIV and AIDS to become the seventh leading cause of death worldwide. The world now has the tools to prevent hepatitis B and cure hepatitis C. Perfect vaccination could eradicate HBV, but it would take two generations at least. In the meantime, there is no cure for the millions of people already infected. Conversely, there is no vaccine for HCV, but new direct-acting antivirals can cure 95 percent of chronic infections, though these drugs are unlikely to reach all chronically-infected people anytime soon. This report, the first of two, examines the feasibility of hepatitis B and C elimination in the United States and identifies critical success factors. The phase two report will outline a strategy for meeting the elimination goals discussed in this report.

Advanced Therapy for Hepatitis C

Author : Geoffrey W. McCaughan
Publisher : John Wiley & Sons
ISBN 13 : 1444346326
Total Pages : 426 pages
Book Rating : 4.4/5 (443 download)

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Book Synopsis Advanced Therapy for Hepatitis C by : Geoffrey W. McCaughan

Download or read book Advanced Therapy for Hepatitis C written by Geoffrey W. McCaughan and published by John Wiley & Sons. This book was released on 2011-10-05 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hepatologists, both researchers and front-line clinicians, now have a comprehensive guide to the treatment of patients with the HCV virus. This book focuses mainly on the efficacy and clinical use of antiviral therapies, including the use of antivirals post liver transplantation and in the presence of the HIV virus. It also explores the foundations for understanding antiviral therapies in HCV, such as the complex pharmacology and mechanisms of antiviral drugs. A 'late-breaking information' chapter contains the most recent trial results on the latest antiviral drugs.

Antiviral Chemotherapy

Author : D. J. Jeffries
Publisher :
ISBN 13 :
Total Pages : 614 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Antiviral Chemotherapy by : D. J. Jeffries

Download or read book Antiviral Chemotherapy written by D. J. Jeffries and published by . This book was released on 1995-07-11 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt: Considerable advances have been made in the treatment of antiviral diseases over the last decade. Several new drugs have been introduced while new clinical information has been gathered on the efficacy of existing drugs. This study aims to provide an examination of the basic science (drug formulae, structure and biochemical activity) and clinical information (usage and efficacy) on chemotherapy, as well as describing future potentials.

Chronic Hepatitis C Virus

Author : Mitchell L. Shiffman
Publisher : Springer Science & Business Media
ISBN 13 : 1461411920
Total Pages : 333 pages
Book Rating : 4.4/5 (614 download)

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Book Synopsis Chronic Hepatitis C Virus by : Mitchell L. Shiffman

Download or read book Chronic Hepatitis C Virus written by Mitchell L. Shiffman and published by Springer Science & Business Media. This book was released on 2011-11-17 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chronic Hepatitis C Virus: Lessons from the Past, Promise for the Future documents the monumental advances that have been made in our understanding of chronic HCV during the past decade. The first section reviews the natural history of chronic HCV, how this virus can affect other organs in addition to the liver, and whether treating chronic HCV alters the natural history of this disease. Section 2 reviews the advances that have been made in the treatment of chronic HCV during the past decade with interferon based therapy. Separate chapters on response guided therapy and how to manage the adverse events associated with these medications provide the physician with the concepts required to more effectively treat chronic HCV now and in the future. As the genetics of virologic response have recently been elucidated, a chapter is devoted to helping the clinician understand how genes that modulate disease processes and their treatment are identified and utilized in clinical care. Section 3 deals with the future of HCV treatment and specific inhibitors of HCV. Specific chapters explain how targets for drugs are identified and how drugs are then developed and tested; how mutations of HCV develop and how anti-viral agents will affect this process; the most up to date data regarding the treatment of chronic HCV with peginterferon, ribavirin and anti-viral agents; and the potential to treat chronic HCV with just oral anti-viral agents and without peginterferon and ribavirin in the future. The final section of this book covers issues related to liver transplantation in patients with chronic HCV. Separate chapters review the natural history of chronic HCV in liver transplant recipients and the impact of utilizing HCV positive donors. The volume concludes with chapters that cover the treatment of chronic HCV both prior to and after liver transplantation with potent anti-viral agents. Chronic Hepatitis C Virus: Lessons from the Past, Promise for the Future is a valuable resource for all physicians caring for patients with chronic HCV.

Direct-acting Antiviral Agents for Chronic Hepatitis C Genotype 1

Author : Gaetanne Murphy
Publisher :
ISBN 13 :
Total Pages : 362 pages
Book Rating : 4.:/5 (93 download)

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Book Synopsis Direct-acting Antiviral Agents for Chronic Hepatitis C Genotype 1 by : Gaetanne Murphy

Download or read book Direct-acting Antiviral Agents for Chronic Hepatitis C Genotype 1 written by Gaetanne Murphy and published by . This book was released on 2015 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Care of the Patient with Hepatitis C Virus Infection, An Issue of Infectious Disease Clinics

Author : Barbara McGovern
Publisher : Elsevier Health Sciences
ISBN 13 : 145574719X
Total Pages : 199 pages
Book Rating : 4.4/5 (557 download)

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Book Synopsis Care of the Patient with Hepatitis C Virus Infection, An Issue of Infectious Disease Clinics by : Barbara McGovern

Download or read book Care of the Patient with Hepatitis C Virus Infection, An Issue of Infectious Disease Clinics written by Barbara McGovern and published by Elsevier Health Sciences. This book was released on 2012-12-28 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hepatitis C infection can be an acute or chronic illness and is the most common cause of liver disease in the US. It often goes undiagnosed until significant organ damage has occurred. This issue of the ID Clinics discusses the staging of liver disease, treatments for those newly diagnosed, and those who are dealing with chronic illness, along with managing drug therapy and virus resistance.

Advances in Treatment of Hepatitis C and B

Author : Naglaa Allam
Publisher : BoD – Books on Demand
ISBN 13 : 9535129937
Total Pages : 408 pages
Book Rating : 4.5/5 (351 download)

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Book Synopsis Advances in Treatment of Hepatitis C and B by : Naglaa Allam

Download or read book Advances in Treatment of Hepatitis C and B written by Naglaa Allam and published by BoD – Books on Demand. This book was released on 2017-03-08 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: As in many areas of medicine, treatment of viral hepatitis has seen an acceleration of change driven by new therapies and evolving technology. Thanks to the direct-acting antiviral agents (DAAs), the era of HCV eradication and cure has begun. As regards to hepatitis B therapy, potent antiviral drugs for suppression of viral replication are available, new research activities to enhance eradication are visible, and these may influence clinical practice in the coming years. This book covers the latest advances in hepatitis C and hepatitis B therapeutics as well as the emerging and investigational treatment strategies. "Advances in Treatment of Hepatitis C and Hepatitis B" book is an up-to-date source of information for physicians, residents, and advanced medical students seeking a broader understanding of treatment of viral hepatitis. The authors of the chapters come from many eminent centers around the world and are experts in their respective fields.

Direct-acting Antiviral Therapy for Chronic Hepatitis C

Author :
Publisher :
ISBN 13 : 9789090267227
Total Pages : 289 pages
Book Rating : 4.2/5 (672 download)

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Book Synopsis Direct-acting Antiviral Therapy for Chronic Hepatitis C by :

Download or read book Direct-acting Antiviral Therapy for Chronic Hepatitis C written by and published by . This book was released on 2012 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Hepatitis C virus (HCV) infection was discovered in the late 1980s. Since then, tremendous progress has been made in understanding the pathophysiology of HCV infection together with the development of improved therapies for patients with chronic hepatitis C. The main focus of this thesis was to improve our understanding of new treatment strategies for chronic hepatitis C. Several direct-acting antivirals were investigated in multiple in vitro and in vivo studies. This thesis gives more insight into the pathogenesis of chronic HCV infection, its epidemiology, development of innovative treatments and upcoming viral resistance during therapy with direct-acting antivirals. The results of this thesis contribute to the impressive treatment progress, which will ultimately improve the prognosis of chronic hepatitis C patients."--Omslag.

Hepatitis C Virus-Host Interactions and Therapeutics: Current Insights and Future Perspectives

Author : Imran Shahid
Publisher : Bentham Science Publishers
ISBN 13 : 9815123440
Total Pages : 450 pages
Book Rating : 4.8/5 (151 download)

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Book Synopsis Hepatitis C Virus-Host Interactions and Therapeutics: Current Insights and Future Perspectives by : Imran Shahid

Download or read book Hepatitis C Virus-Host Interactions and Therapeutics: Current Insights and Future Perspectives written by Imran Shahid and published by Bentham Science Publishers. This book was released on 2023-01-24 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: The burden of hepatitis C virus (HCV) infection on the public health care system continues to remain significant despite the remarkable progress made in HCV therapeutics in the recent past. There are now almost a dozen oral interferon-free direct-acting antivirals available for the treatment of hepatitis C virus infection. Despite advances in the treatment of HCV, therapeutic gaps remain that are yet to be fully explored. Researchers and scientists still strive to understand virus-host interactions to map the disease’s progression along with extrahepatic manifestations and virus invasion strategies impacting the host’s immune system. This book briefly discusses the biology of HCV infection, virus-host interactions, molecular epidemiology of the infection, and the full spectrum of immune responses to hepatitis C. It also provides in-depth information about HCV, clinical diagnostics, and therapeutic knowledge to all stakeholders involved in HCV screening, diagnosis, treatment, and management. Topics covered in the chapters include 1) HCV-host interactions leading to asymptomatic acute infection, 2) the progression of acute HCV infection to chronic disease and subsequent extrahepatic comorbidities, 3) Innate and adaptive immune responses in HCV infections, 4) Consensus-based Approaches for Hepatitis C Screening and Diagnosis, 5) advances in hepatitis C therapy and global management of HCV, and 6) the outcomes of Oral Interferon-free Direct-acting Antivirals as Combination Therapies to Cure Hepatitis C. This book is a valuable addition to undergraduate and postgraduate hepatology students and physicians, clinicians, hepatologists, and health care officials involved in HCV clinical diagnosis and therapeutics.

Novel and Combination Therapies for Hepatitis C Virus, An Issue of Clinics in Liver Disease

Author : Paul J. Pockros
Publisher : Elsevier Health Sciences
ISBN 13 : 1455771988
Total Pages : 245 pages
Book Rating : 4.4/5 (557 download)

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Book Synopsis Novel and Combination Therapies for Hepatitis C Virus, An Issue of Clinics in Liver Disease by : Paul J. Pockros

Download or read book Novel and Combination Therapies for Hepatitis C Virus, An Issue of Clinics in Liver Disease written by Paul J. Pockros and published by Elsevier Health Sciences. This book was released on 2013-02-28 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dr. Pockros has created a clinically focused issue based on the CONO 2012 meeting, whereby he was able to have those presenters write articles for his issue. Therefore, the content for HCV in this issue reflects the most current knowledge. The issue is focused on basic/current information, current therapy and special populations, triple and quad combination therapies in development, and an article on second generation protease inhibitors. The reader can expect that this issue will provide thorough clinical reviews on the most current therapeutic options for HCV.

Hepatitis C

Author : Imran Shahid
Publisher : BoD – Books on Demand
ISBN 13 : 1789842077
Total Pages : 214 pages
Book Rating : 4.7/5 (898 download)

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Book Synopsis Hepatitis C by : Imran Shahid

Download or read book Hepatitis C written by Imran Shahid and published by BoD – Books on Demand. This book was released on 2018-10-10 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: The propagation of hepatitis C from acute to chronic infection and afterward to end-stage liver diseases (hepatic fibrosis, cirrhosis, and hepatocellular carcinoma) involves a highly orchestrated series of molecular and cellular events, including a plethora of genes and cell signaling cascades. The treatment paradigms was revolutionized after the development and approval of all oral interferon-free direct-acting antivirals achieving higher sustained virologic response rates in treated individuals. This book pragmatically overviews the intricate interplay between viral and host factors during hepatitis C virus infection progression, as well as other hepatitis C-associated clinical implications. Hepatitis C - From Infection to Cure also provides up-to-date information about hepatitis C cures for clinicians, physicians, and healthcare providers with an ample understanding of the current treatment horizon, as well as other investigational and emerging treatment strategies. The authors with their valuable scientific contributions belong to many eminent institutes around the world and are much experienced in hepatitis C virology, pathology, and therapeutics.

Medical Microbiology and Infection

Author : Tom Elliott
Publisher : John Wiley & Sons
ISBN 13 : 111837228X
Total Pages : 340 pages
Book Rating : 4.1/5 (183 download)

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Book Synopsis Medical Microbiology and Infection by : Tom Elliott

Download or read book Medical Microbiology and Infection written by Tom Elliott and published by John Wiley & Sons. This book was released on 2012-05-29 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Medical Microbiology and Infection Lecture Notes is ideal for medical students, junior doctors, pharmacy students, junior pharmacists, nurses, and those training in the allied health professions. It presents a thorough introduction and overview of this core subject area, and has been fully revised and updated to include: Chapters written by leading experts reflecting current research and teaching practice New chapters covering Diagnosis of Infections and Epidemiology and Prevention & Management of Infections Integrated full-colour illustrations and clinical images A self-assessment section to test understanding Whether you need to develop your knowledge for clinical practice, or refresh that knowledge in the run up to examinations, Medical Microbiology and Infection Lecture Notes will help foster a systematic approach to the clinical situation for all medical students and hospital doctors.

Current Management of Hepatitis C Virus, An Issue of Clinics in Liver Disease

Author : Fred Poordad
Publisher : Elsevier Health Sciences
ISBN 13 : 0323413374
Total Pages : 145 pages
Book Rating : 4.3/5 (234 download)

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Book Synopsis Current Management of Hepatitis C Virus, An Issue of Clinics in Liver Disease by : Fred Poordad

Download or read book Current Management of Hepatitis C Virus, An Issue of Clinics in Liver Disease written by Fred Poordad and published by Elsevier Health Sciences. This book was released on 2016-01-07 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clinical information about Hepatitis C is quickly outdated, so Dr. Poordad has assembled expert authors to provide state-of-the-art clinjcal reviews for hepatologists. This issue is uniquely organized to present articles based on therapeutic regimens for certain types of patients: Regimens for the Treatment-Naïve Patient; Regimens for Treatment of the Interferon-Failure Patient; Regimens for DAA Failure Patients; Regimens for the Cirrhotic Patient; Regimens for the Peri-Transplant Patient; Regimens for the HIV-Co-Infected Patient; and Next-generation Regimens: The Future of HCV Therapy. This presentation will be very clinically relevant for the practicing hepatologist.

The Liver

Author : Irwin M. Arias
Publisher : John Wiley & Sons
ISBN 13 : 1119436826
Total Pages : 1156 pages
Book Rating : 4.1/5 (194 download)

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Book Synopsis The Liver by : Irwin M. Arias

Download or read book The Liver written by Irwin M. Arias and published by John Wiley & Sons. This book was released on 2020-03-09 with total page 1156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bridging the gap between basic scientific advances and the understanding of liver disease — the extensively revised new edition of the premier text in the field. The latest edition of The Liver: Biology and Pathobiology remains a definitive volume in the field of hepatology, relating advances in biomedical sciences and engineering to understanding of liver structure, function, and disease pathology and treatment. Contributions from leading researchers examine the cell biology of the liver, the pathobiology of liver disease, the liver’s growth, regeneration, metabolic functions, and more. Now in its sixth edition, this classic text has been exhaustively revised to reflect new discoveries in biology and their influence on diagnosing, managing, and preventing liver disease. Seventy new chapters — including substantial original sections on liver cancer and groundbreaking advances that will have significant impact on hepatology — provide comprehensive, fully up-to-date coverage of both the current state and future direction of hepatology. Topics include liver RNA structure and function, gene editing, single-cell and single-molecule genomic analyses, the molecular biology of hepatitis, drug interactions and engineered drug design, and liver disease mechanisms and therapies. Edited by globally-recognized experts in the field, this authoritative volume: Relates molecular physiology to understanding disease pathology and treatment Links the science and pathology of the liver to practical clinical applications Features 16 new “Horizons” chapters that explore new and emerging science and technology Includes plentiful full-color illustrations and figures The Liver: Biology and Pathobiology, Sixth Edition is an indispensable resource for practicing and trainee hepatologists, gastroenterologists, hepatobiliary and liver transplant surgeons, and researchers and scientists in areas including hepatology, cell and molecular biology, virology, and drug metabolism.

Update on Hepatitis C

Author : Martina Smolic
Publisher : BoD – Books on Demand
ISBN 13 : 9535135635
Total Pages : 240 pages
Book Rating : 4.5/5 (351 download)

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Book Synopsis Update on Hepatitis C by : Martina Smolic

Download or read book Update on Hepatitis C written by Martina Smolic and published by BoD – Books on Demand. This book was released on 2017-10-04 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past few years, remarkable progress has been made in our understanding of HCV biology, pathogenesis of infection, and structure-function relationships. This has led to quantum advances in clinical efficacy and tolerability. Yet, in spite of this amazing progress, there remain obstacles to widespread successful treatment. These issues include biological failures even with direct-acting agents, lack of options for individual with organ failures, drug-drug interactions, access to medications either due to lack of availability or affordability, and psychiatric and social issues. These problems are likely to remain in the future. Therefore, this book has been created by distinguished faculties from around the world to address the progress in our understanding of HCV infection and to review new treatment options, limitations, and accessibility of new therapeutic options.