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  • Non-association of IL-12 +1188 and IFN-γ +874 Polymorphisms with Cytokines Serum Level in Occult HBV Infected Patients

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    Author(s)
    Arababadi, Mohammad K
    Pourfathollah, Ali A
    Jafarzadeh, Abdollah
    Hassanshahi, Gholamhossein
    Daneshmandi, Saeed
    Shamsizadeh, Ali
    Kennedy, Derek
    Griffith University Author(s)
    Kennedy, Derek D.
    Year published
    2011
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    Abstract
    Occult hepatitis B infection (OBI) is identified as a form of hepatitis in which despite the absence of detectable HBsAg, HBV-DNA is observed in peripheral blood of patients. The main aim of this study has been to investigate the association between polymorphisms in +874 of IFN-? and +1188 of IL-12 with their serum level in patients suffering from OBI. Materials and Methods: In this experimental study, plasma samples of 3700 blood donors were tested for the presence of hepatitis B surface antigen (HBsAg) and anti-HBc by ELISA. The HBsAg-/anti-HBc+ samples were selected and screened for HBVDNA by PCR. HBV-DNA positive samples ...
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    Occult hepatitis B infection (OBI) is identified as a form of hepatitis in which despite the absence of detectable HBsAg, HBV-DNA is observed in peripheral blood of patients. The main aim of this study has been to investigate the association between polymorphisms in +874 of IFN-? and +1188 of IL-12 with their serum level in patients suffering from OBI. Materials and Methods: In this experimental study, plasma samples of 3700 blood donors were tested for the presence of hepatitis B surface antigen (HBsAg) and anti-HBc by ELISA. The HBsAg-/anti-HBc+ samples were selected and screened for HBVDNA by PCR. HBV-DNA positive samples were assigned as OBI cases and ARMS-PCR techniques were performed to examine the two known polymorphisms within IL-12 and IFN-?. In addition, the serum levels of IL-12 and IFN-? were also determined by ELISA. Results: Results of this study demonstrated that, 352 (9.5%) out of 3700 blood samples were HBsAg-/anti-HBc+ and HBV-DNA was detected in 57/352 (16.1%) of HBsAg-/anti-HBc+ samples. Our results showed that groups showed signifi cant difference in CC allele of +1188 region of IL-12 and no difference was observed in the other evaluated genes. Our results also showed that the alleles of +1188 region of IL-12 and alleles of +874 of IFN-? were also not associated with serum level of cytokines. Conclusion: According to the results of this study, it may be concluded that the polymorphisms in +1188 region of IL-12 and +874 region of IFN-? would not affect the expression of both cytokines at serum level in OBI patients.
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    Journal Title
    Saudi Journal of Gastroenterology
    Volume
    17
    Issue
    1
    DOI
    https://doi.org/10.4103/1319-3767.74461
    Copyright Statement
    © 2011 Saudi Gastroenterology Association (SGA). Published by Medknow. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
    Subject
    Clinical sciences
    Medical genetics (excl. cancer genetics)
    Publication URI
    http://hdl.handle.net/10072/39784
    Collection
    • Journal articles

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