K
Karl P. Fischer
Researcher at University of Alberta
Publications - 27
Citations - 2307
Karl P. Fischer is an academic researcher from University of Alberta. The author has contributed to research in topics: Hepatitis B virus & Gene. The author has an hindex of 15, co-authored 27 publications receiving 2235 citations.
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Journal ArticleDOI
Hepatitis C virus replication in mice with chimeric human livers
David F. Mercer,Dan Schiller,John F. Elliott,Donna N. Douglas,Chunhai Hao,Aline Rinfret,William R. Addison,Karl P. Fischer,Thomas A. Churchill,Jonathan R. T. Lakey,David L.J. Tyrrell,Norman M. Kneteman +11 more
TL;DR: These chimeric mice represent the first murine model suitable for studying the human hepatitis C virus in vivo and are considered to be a first-of-its-kind model.
Journal ArticleDOI
Mutation in HBV RNA-dependent DNA polymerase confers resistance to lamivudine in vivo.
Graham Tipples,Mang Ma,Karl P. Fischer,Vincent G. Bain,Norman M. Kneteman,David L.J. Tyrrell +5 more
TL;DR: It is likely that the methionine‐to‐ isoleucine mutation in the YMDD motif of the HBV polymerase contributes significantly to the lamivudine‐resistance of HBV isolated from this patient.
Journal ArticleDOI
Enhancement of T helper type 1 immune responses against hepatitis B virus core antigen by PLGA nanoparticle vaccine delivery
Carrie S.W. Chong,Min Cao,Winnie Wong,Karl P. Fischer,William R. Addison,Glen S. Kwon,Glen S. Kwon,D. Lorne Tyrrell,John Samuel +8 more
TL;DR: Results demonstrated that codelivery of HBcAg and MPLA in PLGA nanoparticles promotedHBcAg-specific Th1 immune responses with IFN-gamma production, suggesting that appropriate design of the vaccine formulation and careful planning of the immunization schedule are important in the successful development of effective HBV therapeutic vaccines.
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Efficacy of lamivudine in chronic hepatitis B patients with active viral replication and decompensated cirrhosis undergoing liver transplantation
Vincent G. Bain,Norman M. Kneteman,Mang Ma,Klaus S. Gutfreund,James Shapiro,Karl P. Fischer,Graham Tipples,H Lee,Laurence D. Jewell,David L.J. Tyrrell +9 more
TL;DR: It is shown that lamivudine can effectively inhibit hepatitis B virus in cirrhotic patients pretransplant and posttransplant, and viral resistance is likely to be a significant problem.
Journal ArticleDOI
Zinc Finger Proteins Designed To Specifically Target Duck Hepatitis B Virus Covalently Closed Circular DNA Inhibit Viral Transcription in Tissue Culture
TL;DR: In this article, six different zinc finger proteins (ZFPs) were designed to bind DNA sequences in the DHBV enhancer region, and the binding kinetics were assessed by using electrophoretic mobility shift assays and surface plasmon resonance.