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Characteristics of HLA Class I and Class II Antigens of the Somali Population

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Abstract:

HLA antigens of the Somali population are not categorised as well as those of other international ethnic groups. We analysed the HLA antigens of 76 unrelated Somalis who lived in the west of England. HLA -A, -B, -C and DRB1 typing was performed by polymerase chain reaction using sequence-specific oligonucleotide probes (PCR-SSOP) at a low-intermediate resolution level. Phenotype frequency, gene frequency and haplotype frequency were used to study the relationship between Somalis and other relevant populations. The antigens with highest frequencies were HLA -A1, A2, and A30; B7, B51 and B39; Cw7, Cw16, Cw17, Cw15 and Cw18; DR 13, DR17, DR8 and DR1. HLA haplotypes with high significance and characteristics of the Somali population are B7-Cw7, B39-Cw12, B51-Cw16, B57-Cw18. The result of HLA class I and class II antigen frequencies show that the Somali population appear more similar to Arab or Caucasoid than to African populations. The results are consistent with hypothesis, supported by cultural and historical evidence, of common origin of the Somali population. This study will serve as a reference for further anthropological studies, as well as studies of associations between HLA and disease.

Document Type: Research Article

DOI: http://dx.doi.org/10.1111/j.1365-3148.2006.00694_52.x

Publication date: October 1, 2006

bsc/trans/2006/00000016/A00101s1/art00105
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