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Abstract Details
Hepatitis B virus genotypes influence clinical outcomes: A review
Can Liver J. 2023 Oct 30;6(3):347-352. doi: 10.3138/canlivj-2023-0003.eCollection 2023 Oct.
1Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.
2School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada.
Abstract
Hepatitis B virus (HBV) is a hepatotropic virus that affects approximately 296 million people worldwide. A crucial step to HBV replication is the transcription of its infectious DNA from its viral RNA intermediate. The production of the RNA intermediate hinges on reverse transcription, and therefore the lack of proofreading in that process commonly yields mutants and has led to nine well-described genotypes (A-I) and over 30 known sub-genotypes of the virus. The influence of genotype on HBV infection outcomes, which include fibrosis progression, cirrhosis, and hepatocellular carcinoma (HCC), remain uncertain. This review aims to analyze the influence of HBV genotype on the risk of development of these outcomes. The response to current and future HBV therapies is considered. Further study of larger and more diverse samples will hopefully resolve outstanding uncertainties.
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