Abstract：
BACKGROUND:Occult hepatitis B infection (OBI) is defined as a form of hepatitis in which, despite absence of detectable HBsAg, HBV-DNA is present in peripheral blood of patients. The main aim of this study was to determine an association between polymorphisms in +801 of CXCL12 (SDF-1α) and its serum level in OBI patients. METHODS:In this experimental study, plasma samples of 3700 blood donors were tested for HBsAg and anti-HBc by ELISA. The HBsAg(-)/anti-HBc(+) samples were selected and screened for HBV-DNA by PCR. HBV-DNA positive samples assigned as OBI cases and PCR-RFLP techniques were performed to examine the CXCL12 (SDF-1α) polymorphisms. The serum level of CXCL12 (SDF-1α) was also analyzed by ELISA. RESULTS:Of 3700 blood samples, 352 (9.5%) were HBsAg/anti-HBc(+) and HBV-DNA was detected in 57/352 (16.1%) of HBsAg(-)/anti-HBc(+) samples. Our results showed a significant difference in genotypes and alleles of +801 region of CXCL12 (SDF-1α). However, the serum level of CXCL12 (SDF-1α) was decreased in OBI patients but was not significant. Our results also showed that the alleles of +801 region of CXCL12 (SDF-1α) were also not associated with serum level of the chemokine. CONCLUSIONS:The polymorphisms in +801 region of CXCL12 (SDF-1α) are possibly related to OBI.
journal_name
Arch Med Resjournal_title
Archives of medical researchauthors
Hassanshahi G,Arababadi MK,Khoramdelazad H,Yaghini N,Zarandi ERdoi
10.1016/j.arcmed.2010.07.001subject
Has Abstractpub_date
2010-07-01 00:00:00pages
338-42issue
5eissn
0188-4409issn
1873-5487pii
S0188-4409(10)00181-5journal_volume
41pub_type
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