Relationship between hepatitis B virus genotypes and lamivudine resistant YMDD mutation in 150 patients with chronic hepatitis B
10.3760/cma.j.issn.1003-9279.2015.03.020
- VernacularTitle:150例CHB患者YMDD突变发生率与乙型肝炎病毒基因型的研究
- Author:
Huaxing TAO
1
;
Yao LYU
;
Chunsong YU
;
Minmin JIANG
Author Information
1. 嘉善县第一人民医院感染科
- Keywords:
Hepatitis B virus;
Genotypes;
Polymerase chain reaction;
Lamivudine;
Mutation
- From:
Chinese Journal of Experimental and Clinical Virology
2015;29(3):254-255
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the relationship between hepatitis B virus genotype and lamivudine-resistant YMDD mutations and the clinical significance.Methods A total of 150 cases with chronic hepatitis B (CHB) were chosen from the outpatients and inpatients in our hospital.By testing the serum before and after they have taken lamivudine for 12 months,hepatitis B virus (HBV) genotype,HBV DNA quantitation,and YMDD mutation were tested applying polymerase chain reaction (PCR)-reverse dotblot (RDB) hybridization and real-time quantitative PCR.Results Of the 150 patients,81 (54.00％) were HBV subtype B;67 cases (44.67％) were HBV subtype C,and 2 cases (1.33％) were mixtures of HBV B and D.Before taking lamivudine,6 patients were found to have YMDD mutation in their serum,the genotype was HBV subtypes B.After taking lamivudine for 12 months,YMDD mutation was detected in 32 cases,of whom the proportion of HBV subtypes B was 24.69％ (20/81);the proportion of HBV subtype C was 17.91％;the difference was statistically significant (P ＜ 0.05).Conclusion The prevalence of YMDD mutation was associated with hepatitis B virus genotype.
