Viral quasispecies of hepatitis B virus in patients with YMDD mutation and lamivudine resistance may not predict the efficacy of lamivudine/adefovir rescue therapy.
PMID: 30906435
2019
Experimental and therapeutic medicine
Result: In the present study, the most prevalent mutations were those in the S region (sP120Q, sQ129R, sT131I, sM133I, sG145R, sY161F/H, sI195M/T, sW196S/L, sW199C/L and sM213I/T; Table III).
Deep sequencing of hepatitis B surface antigen gene in the preserved umbilical cords in immunoprophylaxis failure against mother-to-child HBV transmission.
Conclusion: G44E, G102C, and Y161F were detected in the serum of the 1st-born, the umbilical cord of the 1st-born, and the umbilical cord of the 3rd-born child, respectively.
Table: Y161F
Evolution of the serologic and virologic course of occult HBV infection in therapy experienced HIV co-infected patients.
Abstract: While the HBsAg gene sequences isolated from chronic HBV infection were genetically stable over time, OBI-associated variants (sP111R, sT127P, sY161F) were neither stable nor predominant during the course of infection.
Analysis of HBV basal core promoter/precore gene variability in patients with HBV drug resistance and HIV co-infection in Northwest Ethiopia.
Hepatitis B Virus (HBV) Infection and Re-activation During Nucleos(t)ide Reverse Transcriptase Inhibitor-Sparing Antiretroviral Therapy in a High-HBV Endemicity Setting.
PMID: 30377627
2018
Open forum infectious diseases
Abstract: In one case of reactivation, anti-HBs increased from 14 to >1000 IU/L; sequencing showed HBV genotype A3 and 3 escape mutations in surface (Y100C, K122R, Y161FY).
Hepatitis B virus infection in children of HBV-related chronic liver disease patients: a study of intra-familial HBV transmission.
Abstract: Recognized mutations associated with HBsAg detection and/or vaccination failure, T140I, T143S/M, G145R, and Y161F, were identified in 20 subjects; while mutations linked to HBeAg-defective variants, PC G1896A and BCP A1762T/G1764A, were found in 7 and 11 subjects, respectively.
HBV quasispecies composition in Lamivudine-failed chronic hepatitis B patients and its influence on virological response to Tenofovir-based rescue therapy.
Result: However, out of these 20 S-substitutions, 10 (sT114S, sT126I, sP127T, sN131T, sN143S, sY/S161F, sA194V, sI195M, sW196L and sR210N) remained significant after application of Benjamini-Hochberg correction (Table 2).
HBV mutation literature information.
PMID: 
2022
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