Hepatitis C Viruses

Genomes and Molecular Biology

Author: Seng-Lai Tan

Publisher: Taylor & Francis


Category: Medical

Page: 469

View: 818

"Chronic hepatitis C is a serious public health problem and a disease burden in many parts of the world. The discovery of the causative agent, hepatitis C virus (HCV), in 1989 has initiated an almost unparalleled research activity in academic and pharmaceutical-industry laboratories over the ensuing years. This book aims to provide a state-of-the-art account of recent advances in the molecular and cellular biology, immunology and pathogenesis of HCV. It also aspires to discuss new strategies as well as outstanding issues for future research. Hepatitis C has been dubbed the "silent epidemic" because it is generally asymptomatic for decades after infection; its victims often are unaware of the infection until it is too late for therapy. What is the genetic makeup and molecular features that make HCV such a "silent" yet deadly assassin? This question, in fact, is the premise by which this monograph was prepared -- it was an attempt to decode the secrets of HCV, one viral gene at a time. To that end, we assembled a team of highly regarded experts from different disciplines who have prepared 16 chapters on various aspects of HCV, including the HCV genome and the role(s) of each viral gene product within the context of the viral life cycle, host interactions, and regulation of host antiviral defense and adaptive immunity."--Home page.

Current Progress and Challenges in the Development of a Hepatitis C Virus Vaccine

Author: Steven K.H. Foung

Publisher: Frontiers Media SA




View: 250

More than 70 million people worldwide are infected with hepatitis C virus, a major cause of liver cirrhosis, liver failure and hepatocellular carcinoma world-wide. In the last decade, this cancer has emerged as the second leading cause of cancer death and the global burden is increasing by two million new infections per year, mainly due to injection drug use. An effective vaccine will be the most effective means to contain the spread of this virus worldwide. The articles in this Research Topic describe the progress that has been made towards a preventive vaccine and the challenges that still need to be overcome to ultimately achieve this goal.

Hepatitis C

From Infection to Cure

Author: Imran Shahid

Publisher: BoD – Books on Demand


Category: Medical

Page: 212

View: 909

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.

Molecular and Cellular Biology of Viruses

Author: Phoebe Lostroh

Publisher: Garland Science


Category: Science

Page: 501

View: 239

Viruses interact with host cells in ways that uniquely reveal a great deal about general aspects of molecular and cellular structure and function. Molecular and Cellular Biology of Viruses leads students on an exploration of viruses by supporting engaging and interactive learning. All the major classes of viruses are covered, with separate chapters for their replication and expression strategies, and chapters for mechanisms such as attachment that are independent of the virus genome type. Specific cases drawn from primary literature foster student engagement. End-of-chapter questions focus on analysis and interpretation with answers being given at the back of the book. Examples come from the most-studied and medically important viruses such as HIV, influenza, and poliovirus. Plant viruses and bacteriophages are also included. There are chapters on the overall effect of viral infection on the host cell. Coverage of the immune system is focused on the interplay between host defenses and viruses, with a separate chapter on medical applications such as anti-viral drugs and vaccine development. The final chapter is on virus diversity and evolution, incorporating contemporary insights from metagenomic research. Key selling feature: Readable but rigorous coverage of the molecular and cellular biology of viruses Molecular mechanisms of all major groups, including plant viruses and bacteriophages, illustrated by example Host-pathogen interactions at the cellular and molecular level emphasized throughout Medical implications and consequences included Quality illustrations available to instructors Extensive questions and answers for each chapter


Molecular Biology and Virus-Host Interactions

Author: Hubert Laude

Publisher: Springer Science & Business Media


Category: Medical

Page: 478

View: 809

Coronaviruses represent a major group of viruses of both molecular biological interest and clinical significance in animals and humans. During the past two decades, coronavirus research has been an expanding field and, since 1980, an international symposium was held every 3 years. We organized the yth symposium for providing an opportunity to assess important progresses made since the last symposium in Cambridge (U. K. ) and to suggest areas for future investigations. The symposium, held in September 1992, in Chantilly, France, was attended by 120 participants representing the majOlity of the laboratories engaged in the field. The present volume collects 75 papers which were presented during the yth symposium, thus providing a comprehensive view of the state of the art ofCoronavirology. The book is divided into 7 chapters. The first chapters gather reports dealing with genome organization, gene expression and structure-function relationships of the viral polypeptides. New sequence data about as yet poorly studied coronaviruses - canine coronavirus CCY and porcine epidemic diarrhoea virus PEDY - are presented. Increasing efforts appear to be devoted to the characterization of products of unknown function, encoded by various open reading frames present in the coronavirus genomes or delived from the processing of the large polymerase polyprotein. Due to the extreme size of their genome, the genetic engineering ofcoronavi\'uses through the production of full length cDNA clones is presently viewed as an unachievahle task.

Viral Proteases and Their Inhibitors

Author: Satya Prakash Gupta

Publisher: Academic Press


Category: Science

Page: 516

View: 973

Viral Proteases and Their Inhibitors provides a thorough examination of viral proteases from their molecular components, to therapeutic applications. As information on three dimensional structures and biological functions of these viral proteases become known, unexpected protein folds and unique mechanisms of proteolysis are realized. This book investigates how this facilitates the design and development of potent antiviral agents used against life-threatening viruses. Users will find descriptions of each virus that detail the structure and function of viral proteases, discuss the design and development of inhibitors, and analyze the structure-activity relationships of inhibitors. This book is ideal biochemists, virologists and those working on antiviral agents. Provides comprehensive, state-of-the-art coverage of virus infections, the virus lifecycle, and mechanisms of protease inhibition Analyzes structure-activity relationships of inhibitors of each viral protease Presents an in-depth view of the structure and function of viral proteases

Studies on Hepatitis Viruses

Life Cycle, Structure, Functions, and Inhibition

Author: Satya Prakash Gupta

Publisher: Academic Press


Category: Medical

Page: 242

View: 220

Studies on Hepatitis Viruses: Life Cycle, Structure, Functions, and Inhibition presents the latest on this systemic infection that predominantly affects the liver with inflammation that can be acute or chronic. Hepatitis viruses have been the subject of intense study in the last twenty years, with a wealth of information related to their lifecycle, structure, functions and inhibition being presented. This book compiles the most important developments and research, giving users a very useful guide on this evolving area of virology and medicinal chemistry. Provides comprehensive, state-of-the-art coverage of hepatitis virus infections, the virus' lifecycle, and mechanisms of protease inhibition Analyzes structure-activity relationships of inhibitors of viral hepatitis Presents an in-depth view of the structure and function of viral hepatitis Discusses classification, epidemiology, pathogenesis, natural history, clinical manifestations, diagnosis, complications, associated disorders and animal models

HCV: The Journey from Discovery to a Cure

Volume II

Author: Michael J. Sofia

Publisher: Springer Nature


Category: Science

Page: 500

View: 805

​Hepatitis C is a liver disease caused by the hepatitis C virus (HCV) and infects approximately 75 million individuals worldwide. It is also one of the major causes of liver cancer and liver transplants. The elucidation of the HCV genome, and the development of a whole cell system to study the virus spurred the search for novel direct acting antiviral drugs to cure this disease. This global effort culminated in the development of direct acting antiviral drugs that led to cure rates approaching 100% in all patient populations after only 8-12 weeks of therapy. These efforts resulted in one of the greatest achievements in public health and provides the potential for eliminating HCV as a major disease worldwide. This volume is aimed at a broad audience of academic and industrial scientists interested in the discovery and development of drugs to treat viral diseases and those interested in reading about one of the most unique accomplishments in biomedical research. The volume will provide a one of a kind reference work that highlights the many efforts, from the discovery of the HCV virus, to the invention of breakthrough medicines and their use in the real world to cure patients. It is the companion book to the volume "HCV: The Journey from Discovery to a Cure - Volume I".

Clinical Cases in Dental Hygiene

Author: Cheryl M. Westphal Theile

Publisher: John Wiley & Sons


Category: Medical

Page: 320

View: 299

Clinical Cases in Dental Hygiene is an indispensable resource to understanding both the theory and practice of dental hygiene, illustrated by real-life cases in a clinically relevant format. Offers a unique case-based format that supports problem-based learning Promotes independent learning through self-assessment and critical thinking Includes a wealth of relevant cases for understanding dental procedures and management of patients Covers all essential topics within the scope of dental hygiene

Medicinal Plants in the Asia Pacific for Zoonotic Pandemics, Volume 1

Family Amborellaceae to Vitaceae

Author: Christophe Wiart

Publisher: CRC Press


Category: Medical

Page: 423

View: 124

Medicinal Plants in the Asia Pacific for Zoonotic Pandemics provides an unprecedented, comprehensive overview of the phylogeny, botany, ethnopharmacology, and pharmacology of more than 100 plants used in the traditional medical systems of Asia and Pacific. It discusses their actions and potentials against viruses, bacteria, and fungi that represent a threat of epidemic and pandemic diseases, with an emphasis on the molecular basis and cellular pathways. This book presents scientific names, the botanical classification, traditional medicinal uses, active chemical constituents, and pharmacology. This volume is a critical reference for anyone involved in the discovery of lead molecules or phytopharmaceutical products for the prevention or treatment of pandemic viral, bacterial, or fungal infections. FEATURES Phylogenetic presentation of medicinal plants and a chemotaxonomical rationale of antiviral, antibacterial, and antifungal actions Discusses the chemical structure–activity relationship, pharmacokinetics, and oral bioavailability of antimicrobial principles Introduces the molecular mechanism of natural products on viruses, bacteria, and fungi Contains a selection of botanical plates and useful bibliographic references This book is a useful research tool for postgraduates, academics, and the pharmaceutical, herbal, and nutrition industries. Medicinal Plants in the Asia Pacific for Zoonotic Pandemics includes commentary sections that invite further research and reflection on the fascinating and timely subject of the development of drugs and herbals from Asia-Pacific medicinal plants to safeguard humanity and other life forms against the forthcoming waves of viral, bacterial, or fungal pandemics. This book is an ideal reference text for medicinal plant enthusiasts.