Evaluation of drug resistance mutations in patients with chronic hepatitis B.

Abstract:

:Mutations occurring in viral polymerase gene of hepatitis B virus (HBV) due to the use of nucleos(t)id analogs reduce the activity of the drugs by causing antiviral resistance. In this study, it was aimed to evaluate mutations responsible for drug resistance and drug resistance mutation rates in patients followed up by the diagnosis of chronic hepatitis B (CHB). A total of 318 CHB patients were included in the study. HBV mutations were detected using the INNO-LiPA commercial kit based on the reverse hybridization principle. Drug resistance mutation was detected in 46.86% (149/318) of the patients. The rates of drug resistance were found 36.79% (117/318) for lamivudine resistance, 12.58% (40/318) for entecavir (ETV), and 7.86% (25/318) for adefovir. In 10 patients, the possible tenofovir (TDF) resistance (3.14%) was found. Single-drug and double-drug resistances were detected in 34.59% and in 11.01% of the patients, respectively. Triple drug resistance was detected in only 1.26% of the patients. Unlike various studies in Turkey and in other countries, remarkable resistance to ETV and TDF were found in this study. The high rate of the probable TDF resistance was striking, with 3.14%.

journal_title

Folia microbiologica

authors

Alacam S,Karabulut N,Yolcu A,Onel M,Atasoy A,Kaymakoglu S,Agacfidan A

doi

10.1007/s12223-018-0650-z

subject

Has Abstract

pub_date

2019-03-01 00:00:00

pages

237-243

issue

2

eissn

0015-5632

issn

1874-9356

pii

10.1007/s12223-018-0650-z

journal_volume

64

pub_type

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