Prevalence of mutations in HBV DNA polymerase gene associated with nucleos(t)ide resistance in treatment-naive patients with Chronic Hepatitis B in Central China.

Abstract

OBJECTIVE:

There are a lot of disagreements in the studies on hepatitis B virus (HBV) DNA polymerase mutation rate associated with nucleos(t)ide analogues (NAs) in treatment-naive chronic hepatitis B (CHB) patients. This is the first study aimed to investigate the prevalence of spontaneous HBV resistance mutations in Central China.

METHODS:

This study included treatment-naive patients with CHB from June 2012 to May 2015 receiving care at the Institute of Liver Disease in Central China. All patients completed a questionnaire covering different aspects, such as family medical history, course of liver disease, medication history, alcohol use, among others. Mutations in HBV DNA polymerase associated with NAs resistance were detected using INNO-LiPA assay.

RESULTS:

269 patients were infected with HBV genotype B (81.4%), C (17.9%), and both B and C (0.7%). Mutations in HBV DNA polymerase were detected in 24 patients (8.9%) including rtM204I/V (n=6), rtN236T (n=5), rtM250V (n=2), rtL180M (n=2), rtT184G (n=1), rtM207I (n=1), rtS202I (n=1), rtM204V/I & rtL180M (n=5), and rtM204I & rtM250V (n=1).

CONCLUSION:

Spontaneous HBV resistance mutations in HBV DNA polymerase were found in treatment-naive patients with CHB in Central China. These findings suggest that we should analyze HBV DNA polymerase resistance mutation associated with NAs before giving antiviral therapy such as lamivudine (LAM), adefovir (ADV), and telbivudine (LdT).

• Authors: Youyun Zhao, Jianhua Wu, Lijun Sun, Guangzhong Liu, Bo Li, Yi Zheng, Xiaodong Li, Junxiu Tao
• Journal: The Brazilian journal of infectious diseases : an official publication of the Brazilian Society of Infectious Diseases (Braz J Infect Dis) 2016 Mar-Apr Vol. 20 Issue 2 Pg. 173-8 ISSN: 1678-4391 [Electronic] Brazil
• PMID: 26876337 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
• Copyright: Copyright © 2016 Elsevier Editora Ltda. All rights reserved.

Chemical References

• Antiviral Agents
• DNA, Viral
• DNA-Directed DNA Polymerase

Topics

• Adult
• Aged
• Antiviral Agents (therapeutic use)
• China
• DNA, Viral (genetics)
• DNA-Directed DNA Polymerase (genetics)
• Drug Resistance, Viral (genetics)
• Female
• Genotype
• Hepatitis B virus (drug effects, genetics)
• Hepatitis B, Chronic (drug therapy, virology)
• Humans
• Male
• Middle Aged
• Mutation (genetics)
• Pregnancy
• Prevalence
• Prospective Studies
• Young Adult