Chronic viral hepatitis. 2000

G Alexander, and K Walsh
Department of Medicine, Addenbrooke's Hospital, Cambridge, UK.

Both hepatitis B and hepatitis C are spread parenterally. Chronic hepatitis C is fast becoming the leading indication for liver transplantation. Most infected patients go on to develop chronic hepatitis, with approximately 20% developing liver cirrhosis or hepatocellular carcinoma after 20 years. Standard treatment now is with a combination of alpha-interferon and ribavirin, which is successful in up to 40% of patients. A vaccine is still a remote possibility and prevention remains all-important. Despite having a successful vaccine, chronic hepatitis B remains an important cause of liver cirrhosis and hepatocellular carcinoma. Treatments for active hepatitis include alpha-interferon and the newer nucleoside analogues such as lamivudine and adefovir. In patients undergoing liver transplantation, recurrence of hepatitis B in the graft can be reduced with a combination of hepatitis B immunoglobulin and these nucleoside analogues.

UI MeSH Term Description Entries
D004797 Enzyme-Linked Immunosorbent Assay An immunoassay utilizing an antibody labeled with an enzyme marker such as horseradish peroxidase. While either the enzyme or the antibody is bound to an immunosorbent substrate, they both retain their biologic activity; the change in enzyme activity as a result of the enzyme-antibody-antigen reaction is proportional to the concentration of the antigen and can be measured spectrophotometrically or with the naked eye. Many variations of the method have been developed. ELISA,Assay, Enzyme-Linked Immunosorbent,Assays, Enzyme-Linked Immunosorbent,Enzyme Linked Immunosorbent Assay,Enzyme-Linked Immunosorbent Assays,Immunosorbent Assay, Enzyme-Linked,Immunosorbent Assays, Enzyme-Linked
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000998 Antiviral Agents Agents used in the prophylaxis or therapy of VIRUS DISEASES. Some of the ways they may act include preventing viral replication by inhibiting viral DNA polymerase; binding to specific cell-surface receptors and inhibiting viral penetration or uncoating; inhibiting viral protein synthesis; or blocking late stages of virus assembly. Antiviral,Antiviral Agent,Antiviral Drug,Antivirals,Antiviral Drugs,Agent, Antiviral,Agents, Antiviral,Drug, Antiviral,Drugs, Antiviral
D016031 Liver Transplantation The transference of a part of or an entire liver from one human or animal to another. Grafting, Liver,Hepatic Transplantation,Liver Transplant,Transplantation, Hepatic,Transplantation, Liver,Hepatic Transplantations,Liver Grafting,Liver Transplantations,Liver Transplants,Transplant, Liver
D016133 Polymerase Chain Reaction In vitro method for producing large amounts of specific DNA or RNA fragments of defined length and sequence from small amounts of short oligonucleotide flanking sequences (primers). The essential steps include thermal denaturation of the double-stranded target molecules, annealing of the primers to their complementary sequences, and extension of the annealed primers by enzymatic synthesis with DNA polymerase. The reaction is efficient, specific, and extremely sensitive. Uses for the reaction include disease diagnosis, detection of difficult-to-isolate pathogens, mutation analysis, genetic testing, DNA sequencing, and analyzing evolutionary relationships. Anchored PCR,Inverse PCR,Nested PCR,PCR,Anchored Polymerase Chain Reaction,Inverse Polymerase Chain Reaction,Nested Polymerase Chain Reaction,PCR, Anchored,PCR, Inverse,PCR, Nested,Polymerase Chain Reactions,Reaction, Polymerase Chain,Reactions, Polymerase Chain
D016898 Interferon-alpha One of the type I interferons produced by peripheral blood leukocytes or lymphoblastoid cells. In addition to antiviral activity, it activates NATURAL KILLER CELLS and B-LYMPHOCYTES, and down-regulates VASCULAR ENDOTHELIAL GROWTH FACTOR expression through PI-3 KINASE and MAPK KINASES signaling pathways. Interferon Alfa,Interferon, Leukocyte,Interferon, Lymphoblast,alpha-Interferon,IFN-alpha D,IFN-alpha5,Interferon alpha-1,Interferon alpha-17,Interferon alpha-4,Interferon alpha-5,Interferon alpha-7,Interferon alpha-88,Interferon alpha-J,Interferon alpha-T,Interferon alpha4,Interferon alpha5,Interferon, Lymphoblastoid,Interferon, alpha,LeIF I,LeIF J,Leif D,IFN alpha D,IFN alpha5,Interferon alpha,Interferon alpha 1,Interferon alpha 17,Interferon alpha 4,Interferon alpha 5,Interferon alpha 7,Interferon alpha 88,Interferon alpha J,Interferon alpha T,Leukocyte Interferon,Lymphoblast Interferon,Lymphoblastoid Interferon,alpha Interferon
D019694 Hepatitis B, Chronic INFLAMMATION of the LIVER in humans caused by HEPATITIS B VIRUS lasting six months or more. It is primarily transmitted by parenteral exposure, such as transfusion of contaminated blood or blood products, but can also be transmitted via sexual or intimate personal contact. Chronic Hepatitis B,Chronic Hepatitis B Virus Infection,Hepatitis B Virus Infection, Chronic
D019698 Hepatitis C, Chronic INFLAMMATION of the LIVER in humans that is caused by HEPATITIS C VIRUS lasting six months or more. Chronic hepatitis C can lead to LIVER CIRRHOSIS. Chronic Hepatitis C
D019701 Hepatitis D, Chronic INFLAMMATION of the LIVER in humans caused by HEPATITIS DELTA VIRUS in conjunction with HEPATITIS B VIRUS and lasting six months or more. Chronic Delta Hepatitis,Chronic Hepatitis D,Delta Hepatitis, Chronic,Chronic Delta Hepatitides,Delta Hepatitides, Chronic,Hepatitides, Chronic Delta,Hepatitis, Chronic Delta

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