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Hepatitis B Virus, An Issue of Clinics in Liver Disease, E-Book

Hepatitis B Virus, An Issue of Clinics in Liver Disease, E-Book

Tarek I. Hassanein

(2016)

Additional Information

Book Details

Abstract

HBV is most prevalent viral infection worldwide. Recent advances in HBV virology epidemiology and management are of utmost importance particularly during this time when HCV is taking the front row in discussion and research. However, there’s an increased interest in management of HBV in special populations, which is covered in this issue. The authors also explore drugs in the pipeline as well as new approaches for achieving long-term viral suppression and possibly cure.

Table of Contents

Section Title Page Action Price
Front Cover Cover
Hepatitis B Virus i
Copyright\r ii
Contributors iii
CONSULTING EDITOR iii
EDITOR iii
AUTHORS iii
Contents v
Preface: Hepatitis B Virus: The Past, The Present, and The Future\r v
Epidemiology of Hepatitis B Virus Infection and Impact of Vaccination on Disease v
Evolution in Our Understanding of Hepatitis B Virus Virology and Immunology v
Interferon Treatment for Hepatitis B v
Liver Fibrosis Reversion After Suppression of Hepatitis B Virus vi
Hepatitis B Virus Infection and Liver Decompensation vi
Hepatitis B and Risk of Non–Hepatocellular Carcinoma Malignancy\r vi
Hepatitis B and Hepatocellular Carcinoma vi
The Management of Hepatitis B in Liver Transplant Recipients vii
Toward Elimination of Hepatitis B Virus Using Novel Drugs, Approaches, and Combined Modalities vii
CLINICS IN LIVER DISEASE\r viii
FORTHCOMING ISSUES viii
February 2017 viii
May 2017 viii
August 2017 viii
RECENT ISSUES viii
August 2016 viii
May 2016 viii
February 2016 viii
Preface:\rHepatitis B Virus: The Past, The Present, and The Future ix
Epidemiology of Hepatitis B Virus Infection and Impact of Vaccination on Disease 607
Key points 607
INTRODUCTION 607
Global Hepatitis B Virus Burden 607
United States Hepatitis B Virus Burden 608
TRANSMISSION OF HEPATITIS B VIRUS 608
Perinatal Transmission 609
Prevention of Perinatal Transmission 609
Horizontal Transmission 609
STRATEGIES FOR CONTROL AND PREVENTION OF HEPATITIS B INFECTION 610
Global Vaccine Policy 610
World Health Organization Recommendations and Strategy on Vaccination for Control of Hepatitis B 611
Vaccination of infants 611
Hepatitis B immune globulin (HBIG) 611
Catch-up vaccination 612
Vaccination of priority adult population groups may be prioritized after infant immunization 612
Vaccine supply and quality 612
Advocacy and social mobilization 612
Measurement of program performance and impact 612
VACCINATION OF INFANTS AND ADMINISTRATION OF HEPATITIS B IMMUNE GLOBULIN 612
United States Vaccine Policy 612
United States Universal Infant and Childhood and Adult Vaccination Policy 613
Catch-up Vaccination 613
Adult Vaccination 613
IMPACT OF VACCINATION GLOBALLY AND IN THE UNITED STATES 614
Impact and Current Status of Implementation of World Health Organization Recommendations 614
Current Vaccine Coverage and Impact in the United States 616
Children 616
High-risk adults 617
Incidence of acute hepatitis B virus infection 619
Impact of Alaskan vaccination program 619
Hepatitis B–related Mortality and Liver Cancer 620
Incidence of Hepatocellular Carcinoma in Children 620
Hepatocellular Carcinoma in Adults 620
DISCUSSION 621
Challenges in Implementation of Birth Dose Vaccination in Low-Income and Middle-Income Countries 621
Challenges in Vaccinating Adults at High Risk of Acquiring Hepatitis B Virus as Adults 622
Future Goals in Prevention of Mother-to-child Transmission and Vaccination 622
Use of Antiviral Therapy in Women with High Viral Loads 623
SUMMARY 624
REFERENCES 624
Evolution in Our Understanding of Hepatitis B Virus Virology and Immunology 629
Key points 629
INTRODUCTION 629
IDENTIFICATION OF HEPATITIS B VIRUS 630
THE DEVELOPMENT AND SUCCESS OF THE VACCINE 631
THE HEPATITIS B VIRUS PROTEINS AND THEIR RELATIONSHIP TO THE NATURAL HISTORY OF HEPATITIS B VIRUS INFECTION 631
HEPATITIS B VIRUS AND THE RISK FOR HEPATOCELLULAR CARCINOMA 632
CURRENT ANTIVIRAL THERAPIES 632
Interferon 632
NUCLEOSIDE AND NUCLEOTIDE ANALOGS 633
HEPATITIS B VIRUS ENTRY INHIBITORS 633
STRATEGIES TARGETING HEPATITIS B VIRUS COVALENTLY CLOSED CIRCULAR DNA 633
HARNESSING THE IMMUNE SYSTEM TO ELIMINATE HEPATITIS B VIRUS INFECTION 634
INNATE IMMUNE RESPONSES 634
B CELLS 635
T CELLS 635
Immune Regulation of T-Cell Effector Responses 636
Therapeutic Vaccination 637
Genetically Modified T Cells 637
REFERENCES 637
Interferon Treatment for Hepatitis B 645
Key points 645
INTRODUCTION 645
MECHANISMS OF ACTION OF INTERFERON IN HEPATITIS B 646
ENDPOINTS OF THERAPY 647
EFFICACY 647
Standard Interferon-α 647
Hepatitis B e antigen positive 647
Liver Fibrosis Reversion After Suppression of Hepatitis B Virus 667
Key points 667
INTRODUCTION 667
REVERSIBILITY OF FIBROSIS AND CIRRHOSIS 668
BASIC MECHANISMS 669
CLINICAL CONSIDERATIONS 670
Fibrosis Reversion After Hepatitis B Virus Suppression 672
Measurement of Fibrosis 674
Antifibrotic Therapy 674
Reversion of Fibrosis and Outcomes with Viral Suppression 674
The Risk of Hepatocellular Carcinoma After Viral Suppression 675
SUMMARY 676
REFERENCES 676
Hepatitis B Virus Infection and Liver Decompensation 681
Key points 681
INTRODUCTION 681
NATURAL HISTORY 682
HEPATIC DECOMPENSATION 683
ACUTE ON CHRONIC LIVER FAILURE 683
NATURAL HISTORY AFTER HEPATIC DECOMPENSATION 683
MANAGEMENT OF HEPATIC DECOMPENSATION IN THE SETTING OF HEPATITIS B VIRUS INFECTION 684
ANTIVIRAL DRUG THERAPY 684
THERAPY OF PATIENTS WITH HEPATITIS B VIRUS WITH LIVER DECOMPENSATION 685
LIVER TRANSPLANTATION FOR PATIENTS INFECTED WITH HEPATITIS B 687
REFERENCES 688
Hepatitis B and Risk of Non–Hepatocellular Carcinoma Malignancy 693
Key points 693
INTRODUCTION 693
PATHOLOGIC MECHANISMS 694
Hepatitis B Carcinogenesis 694
Hepatitis C: a Model for Lymphoproliferation? 694
Evidence for Hepatitis B Lymphoproliferation 695
Mechanisms for Hepatitis B in Other Malignancies 695
POPULATION STUDIES 696
Lymphoid Malignancy 696
Pancreatic Cancer 696
Intrahepatic Cholangiocarcinoma 697
Other Malignancy 697
HEPATITIS B VIRAL MARKERS 697
Non-Hodgkin Lymphoma 697
Pancreatic Cancer 698
SURVEILLANCE 698
TREATMENT 699
SUMMARY 700
REFERENCES 700
Hepatitis B and Hepatocellular Carcinoma 703
Key points 703
INTRODUCTION 703
EPIDEMIOLOGY 704
CAUSE AND RISK FACTORS 704
Hepatitis B Virus Genotype 705
Hepatitis B Virus Genetic Mutation 705
Hepatitis B Virus X Protein 705
Hepatitis B Virus S Protein 706
SURVEILLANCE 706
DIAGNOSIS OF HEPATOCELLULAR CARCINOMA 707
STAGING 708
TREATMENT 708
Surgery 709
Liver Transplantation 710
Downstaging 711
Interventional Radiology Treatment 712
Sorafenib 713
SUMMARY 713
REFERENCES 714
The Management of Hepatitis B in Liver Transplant Recipients 721
Key points 721
INTRODUCTION 721
ANTIVIRAL THERAPY 722
TREATMENT OF HEPATITIS B INFECTION BEFORE LIVER TRANSPLANT 723
TREATMENT OF HEPATITIS B INFECTION AFTER LIVER TRANSPLANT 723
Hepatitis B Immunoglobulin Monotherapy 724
Combination of Hepatitis B Immunoglobulin and Antiviral Agents 725
Withdrawal of Hepatitis B Immunoglobulin After Combination Therapy 725
Oral Therapy Without Hepatitis B Immunoglobulin 729
VACCINATION AGAINST HEPATITIS B 729
HEPATITIS B CORE POSITIVE GRAFTS 729
TREATMENT OF HEPATITIS B INFECTION IN LIVER TRANSPLANT RECIPIENTS 731
SUMMARY 731
REFERENCES 731
Toward Elimination of Hepatitis B Virus Using Novel Drugs, Approaches, and Combined Modalities 737
Key points 737
INTRODUCTION 737
CURRENT TREATMENTS AND LIMITATIONS FOR A CURE 739
VIRAL ENTRY INHIBITORS 740
THERAPIES TARGETING COVALENTLY CLOSED CIRCULAR DNA 740
Covalently Closed Circular DNA Formation Inhibitor 740
Covalently Closed Circular DNA Targeted Endonuclease 744
SMALL INTERFERING RNA APPROACH 744
CAPSID ASSEMBLY AND CORE PROTEIN EFFECTORS 745
TOLL-LIKE RECEPTOR 746
Other Therapeutics with Potential 746
SUMMARY 747
REFERENCES 747