STUDY OF HBSAG ESCAPE MUTATIONS IN CHRONIC HEPATITIS B PATIENTS UNDER TREATMENT WITH NUCLEOS (T) IDE ANALOGUES

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MAHINROUSTA S.; SHARAFI H.; ALAVIAN S.M.; BEHNAVA B.; POURYASIN A.

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Journal: ARAK MEDICAL UNIVERSITY JOURNAL (AMUJ) Year:2012 | Volume:15 | Issue:7 (66) Page(s): 30-36

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Title

STUDY OF HBSAG ESCAPE MUTATIONS IN CHRONIC HEPATITIS B PATIENTS UNDER TREATMENT WITH NUCLEOS (T) IDE ANALOGUES

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Keywords

ADEFOVIR DIPIVOXILQ2

CHRONIC HEPATITIS BQ2

HBSAG ESCAPE MUTATIONQ2

LAMIVUDINEQ2

Abstract

Background: Nucleos (t) ide analogues, such as LAMIVUDINE and adefovir, are effective drugs for treatment of hepatitis B patients. However, long-term treatment with these drugs leads to the emergence of the nucleos (t) ide analogue resistant strains. The impact of nucleos (t) ide analogues on the emergence of HBSAG ESCAPE MUTATIONs is not clarified. Hence, the aim of this study was to determine HBSAG ESCAPE MUTATIONs in CHRONIC HEPATITIS B patients treated with nucleos (t) ide analogues.Materials and Methods: A cross-sectional study was performed on 50 patients with CHRONIC HEPATITIS B under treatment with nucleos (t) ide analogues (lamivudine and/or adefovir) and 50 naive CHRONIC HEPATITIS B patients. HBV DNA was extracted from plasma and S gene of virus was amplified by Nested-PCR followed by direct sequencing. HBsAg gene sequence of the samples was evaluated for detection of HBSAG ESCAPE MUTATIONs.Results: Among the 100 patients, the following HBSAG ESCAPE MUTATIONs were identified: sQ101H, sG119R, sP120S, sP127S, sA128V, sG130N, sG130R, sT131I, sM133I, and sY134N. The frequency of HBSAG ESCAPE MUTATIONs in patients under treatment of nucleos (t) ide analogues was 16% and in naïve patients was 6% (p=0.2, OR=2.98).Conclusion: According to the obtained results, there seems to be no association between using nucleos (t) ide analogues and emergence of HBSAG ESCAPE MUTATIONs.

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APA: Copy

MAHINROUSTA, S., SHARAFI, H., ALAVIAN, S.M., BEHNAVA, B., & POURYASIN, A.. (2012). STUDY OF HBSAG ESCAPE MUTATIONS IN CHRONIC HEPATITIS B PATIENTS UNDER TREATMENT WITH NUCLEOS (T) IDE ANALOGUES. ARAK MEDICAL UNIVERSITY JOURNAL (AMUJ), 15(7 (66)), 30-36. SID. https://sid.ir/paper/69675/en

Vancouver: Copy

MAHINROUSTA S., SHARAFI H., ALAVIAN S.M., BEHNAVA B., POURYASIN A.. STUDY OF HBSAG ESCAPE MUTATIONS IN CHRONIC HEPATITIS B PATIENTS UNDER TREATMENT WITH NUCLEOS (T) IDE ANALOGUES. ARAK MEDICAL UNIVERSITY JOURNAL (AMUJ)[Internet]. 2012;15(7 (66)):30-36. Available from: https://sid.ir/paper/69675/en

IEEE: Copy

S. MAHINROUSTA, H. SHARAFI, S.M. ALAVIAN, B. BEHNAVA, and A. POURYASIN, “STUDY OF HBSAG ESCAPE MUTATIONS IN CHRONIC HEPATITIS B PATIENTS UNDER TREATMENT WITH NUCLEOS (T) IDE ANALOGUES,” ARAK MEDICAL UNIVERSITY JOURNAL (AMUJ), vol. 15, no. 7 (66), pp. 30–36, 2012, [Online]. Available: https://sid.ir/paper/69675/en

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