Virus Dataset Sample Info

> Dataset: 10762559 Search Result


Summary
Item Summary
Project 10762559
Virus Name HBV
Sample Number 28
Disease chronic hepatitis B (CHB)
Country

Sample
ID Sample ID Age Gender Origin Detail
1 1 26 M View
2 2 26 M View
3 3 36 F View
4 4 36 M View
5 5 33 M View
6 6 48 M View
7 7 59 M View
8 8 36 M View
9 9 34 M View
10 10 55 M View
11 11 18 F View
12 12 61 F View
13 13 29 M View
14 14 62 M View
15 15 67 M View
16 16 32 F View
17 17 51 M View
18 18 25 M View
19 19 53 M View
20 20 23 F View
21 21 33 M View
22 22 45 M View
23 23 20 M View
24 24 68 F View
25 25 29 M View
26 26 38 M View
27 27 25 M View
28 28 28 M View

Literature
Item Summary
PMID 10762559
Title Evolution of hepatitis B virus polymerase gene sequence during famciclovir therapy for chronic hepatitis B.
Abstract Prolonged administration of nucleoside analogues for chronic hepatitis B may result in the emergence of hepatitis B viral polymerase mutants. To gain insight into the mechanism involved in the virus's resistance to famciclovir, the amino acid sequences of the terminal protein and reverse-transcriptase (RT) domains of the viral polymerase were determined during therapy among 28 patients. The antiviral response was independent of viral genotypes, and nonresponse to famciclovir was associated with a complex variability of the RT domain. No mutation in the YMDD motif was observed, whereas an L528M mutation was clearly selected by famciclovir treatment in 2 patients, as well as 14 novel mutations in 7 patients. Clone sequence analysis of the RT domains of patients undergoing retreatment with famciclovir and/or lamivudine showed the selection of a preexisting drug-resistant mutant in one case and indicated that sequential antiviral therapy may allow the rapid selection of resistant strains.