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Correlation between HBSAG quantification and HBV genotypesin chronic HBV infections

Accumulated data has been proposed that viral genotypes and sub genotypesplay an important role in clinical outcome and antiviral monitoring of chronic HBV infection. Genotyping and quantitating of HBV DNA levels molecularly is relatively expensive. On the other side, serum HBsAg quantification has...

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Main Authors: Hadi, Qabas Naemah, Mahmud, Mohammed Imad A. Mustafa, Chee, Hui Yee, Jaafar, Khairul Azhar
Format: Article
Language:English
Published: Institute of Research and Journals 2015
Subjects:
R Medicine (General)
Online Access:http://irep.iium.edu.my/50015/1/Imad_Correlation_Hep_B_IJASEAT-CHY.pdf
http://irep.iium.edu.my/50015/
http://www.iraj.in/journal/journal_file/journal_pdf/6-128-14301326671-5.pdf
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spelling my.iium.irep.500152017-01-12T06:33:41Z http://irep.iium.edu.my/50015/ Correlation between HBSAG quantification and HBV genotypesin chronic HBV infections Hadi, Qabas Naemah Mahmud, Mohammed Imad A. Mustafa Chee, Hui Yee Jaafar, Khairul Azhar R Medicine (General) Accumulated data has been proposed that viral genotypes and sub genotypesplay an important role in clinical outcome and antiviral monitoring of chronic HBV infection. Genotyping and quantitating of HBV DNA levels molecularly is relatively expensive. On the other side, serum HBsAg quantification has been recently standardized by automated quantitative assays leading to revived interest in the clinical utilization of this marker for diagnosis using sensitive and reliable commercial assays. Several studies have referred to the kinetics of HBsAg to predict response to antiviral therapy. Thus, a cheaper laboratory test as a surrogate diagnostic marker might simplify patients’ management. Objectives: to evaluate whether quantitative HBsAg levels correlate with HBV genotypes in Malaysian CHB patients. Patients and Methods: In this cross-sectional study, fifty serum samples from patients with hepatitis B were used, however those tested positive for antibodies to HCV and HDV were excluded. The serum HBsAg level was quantified by Elecsysassay. In addition, HBV DNA load was measured by real-time polymerase chain reaction whereas identification of HBV genotypes was done by direct sequencing. Results: Of 50 patients, 31 were males (44%) and 19 females (27%); the mean age was37 ± 12 years. Forty-two (42) patients had HBsAg level >100 IU/mL.Eightypercent (40) were HBeAg-negative while 20% (10) were positive. Genotyping showed that 22 patients had genotype C (44%), and 18 patients were of genotype B (36%). Applying Mann-Whitney test, HBs Agtiters correlated differentially with HBV genotypes C& B. (p<0.05). By Nonparametric T test, there was no significant correlation between HBsAg levels and HBV DNA levels (p<0.05).Conclusions: the statistically significant association between levels of HBsAg and HBV genotypes was observed especially for genotype C. Hence, HBsAg level could be a useful serological marker to predict the genotypes B and C of HBV and thus possibly anticipate the response to treatment with antiviral drugs. Institute of Research and Journals 2015-04 Article REM application/pdf en http://irep.iium.edu.my/50015/1/Imad_Correlation_Hep_B_IJASEAT-CHY.pdf Hadi, Qabas Naemah and Mahmud, Mohammed Imad A. Mustafa and Chee, Hui Yee and Jaafar, Khairul Azhar (2015) Correlation between HBSAG quantification and HBV genotypesin chronic HBV infections. International Journal of Advances in Science, Engineering and Technology (IJASEAT), 3 (2). pp. 1-6. ISSN 2321 –8991 http://www.iraj.in/journal/journal_file/journal_pdf/6-128-14301326671-5.pdf
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
language English
topic R Medicine (General)
spellingShingle R Medicine (General)
Hadi, Qabas Naemah
Mahmud, Mohammed Imad A. Mustafa
Chee, Hui Yee
Jaafar, Khairul Azhar
Correlation between HBSAG quantification and HBV genotypesin chronic HBV infections
description Accumulated data has been proposed that viral genotypes and sub genotypesplay an important role in clinical outcome and antiviral monitoring of chronic HBV infection. Genotyping and quantitating of HBV DNA levels molecularly is relatively expensive. On the other side, serum HBsAg quantification has been recently standardized by automated quantitative assays leading to revived interest in the clinical utilization of this marker for diagnosis using sensitive and reliable commercial assays. Several studies have referred to the kinetics of HBsAg to predict response to antiviral therapy. Thus, a cheaper laboratory test as a surrogate diagnostic marker might simplify patients’ management. Objectives: to evaluate whether quantitative HBsAg levels correlate with HBV genotypes in Malaysian CHB patients. Patients and Methods: In this cross-sectional study, fifty serum samples from patients with hepatitis B were used, however those tested positive for antibodies to HCV and HDV were excluded. The serum HBsAg level was quantified by Elecsysassay. In addition, HBV DNA load was measured by real-time polymerase chain reaction whereas identification of HBV genotypes was done by direct sequencing. Results: Of 50 patients, 31 were males (44%) and 19 females (27%); the mean age was37 ± 12 years. Forty-two (42) patients had HBsAg level >100 IU/mL.Eightypercent (40) were HBeAg-negative while 20% (10) were positive. Genotyping showed that 22 patients had genotype C (44%), and 18 patients were of genotype B (36%). Applying Mann-Whitney test, HBs Agtiters correlated differentially with HBV genotypes C& B. (p<0.05). By Nonparametric T test, there was no significant correlation between HBsAg levels and HBV DNA levels (p<0.05).Conclusions: the statistically significant association between levels of HBsAg and HBV genotypes was observed especially for genotype C. Hence, HBsAg level could be a useful serological marker to predict the genotypes B and C of HBV and thus possibly anticipate the response to treatment with antiviral drugs.
format Article
author Hadi, Qabas Naemah
Mahmud, Mohammed Imad A. Mustafa
Chee, Hui Yee
Jaafar, Khairul Azhar
author_facet Hadi, Qabas Naemah
Mahmud, Mohammed Imad A. Mustafa
Chee, Hui Yee
Jaafar, Khairul Azhar
author_sort Hadi, Qabas Naemah
title Correlation between HBSAG quantification and HBV genotypesin chronic HBV infections
title_short Correlation between HBSAG quantification and HBV genotypesin chronic HBV infections
title_full Correlation between HBSAG quantification and HBV genotypesin chronic HBV infections
title_fullStr Correlation between HBSAG quantification and HBV genotypesin chronic HBV infections
title_full_unstemmed Correlation between HBSAG quantification and HBV genotypesin chronic HBV infections
title_sort correlation between hbsag quantification and hbv genotypesin chronic hbv infections
publisher Institute of Research and Journals
publishDate 2015
url http://irep.iium.edu.my/50015/1/Imad_Correlation_Hep_B_IJASEAT-CHY.pdf
http://irep.iium.edu.my/50015/
http://www.iraj.in/journal/journal_file/journal_pdf/6-128-14301326671-5.pdf
_version_ 1643613646207582208
score 13.211869

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