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Distribution of Hla-B*27 Alleles in Patients With Ankylosing Spondylitis in Iran Pubmed



Fouladi S1 ; Adib M1 ; Salehi M2 ; Karimzadeh H3 ; Bakhshiani Z1 ; Ostadi V1
Authors

Source: Iranian Journal of Immunology Published:2009


Abstract

Background: HLA-B*27 is strongly associated with ankylosing spondylitis (AS). It represents a family of alleles that differ among ethnic groups. Objective: The aim of this study was to determine the distribution of HLA-B*27 alleles in AS patients and healthy controls in Isfahan (Iran). Methods: Sixty AS patients and 430 healthy blood donors were selected. All subjects were HLA-B*27 positive by flow cytometry. HLA-B*27 subtypes were determined by PCR-SSP. Results: Forty patients (66.7%) and 17 controls (3.95%) were HLA-B*27 positive. Subtypes detected by PCR-SSP were B*2705, B*2702, B*2704 and B*2707. One patient was B*2702/B*2710. No significant difference was found in the distribution of these alleles between AS patients and controls. Conclusion: Although Caucasian subtypes are predominant among Iranians, this population is characterized by a combination of both specific Caucasian and Oriental subtypes. However such results should be interpreted carefully because of the small sample size in our investigation and definitive conclusion awaits more ethnic-group studies.
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