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Frequency of rare HLA-A allelic groups in Gilak, Lor, Kurdish and Arab ethnic groups of Iran
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F. Yari    , N. Bagheri , A. Teimourpour , M. Zamanvaziri , F. Sabaghi , F. Mortezapour |
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| Keywords: Key words: HLA, Iran, Ethnicity |
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Type of Study: Research |
Subject:
Imunology
Published: 2022/10/2
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Full-Text: (320 Views) |
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Sci J Iran Blood Transfus Organ 2022;19 (3): 191-199
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Frequency of rare HLA-A allelic groups in Gilak, Lor,
Kurdish and Arab ethnic groups of Iran
Yari F.1, Bagheri B.1, Teimurpour A.1, Zaman-Vaziri M.1, Sabaghi F.1, Mortezapour Barfi F.1
1Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
Abstract
Background and Objectives
Histocompatibility antigens (HLAs) have high genetic diversity and their frequency can be diverse in different ethnicities. Therefore, the determination of these antigens in different ethnicities can provide data used in the expansion of centers for the registration of stem cell donors.
Materials and Methods
In this descriptive study, donor DNA was extracted and qualified. Then, the allele groups of HLA-A were determined at low resolution level by PCR-SSP method. Ethnic and HLA information of Gilak (n= 150), Lor (n= 465), Kurdish (n = 719) and Arab (n = 370) were analyzed and the relationship between the allele and ethnicity was examined and a significant relationship between the frequencies of alleles in the studied ethnicities were evaluated by chi-square statistical method. In this study, a statistically significant level of 0.05 was considered. In order to determine in which of the ethnicities the frequency of the studied alleles was higher than the expected values under the assumption of independence, the standardized residual values were determined.
Results
Allelic frequencies in the studied ethnic groups were obtained for HLA-A*23 and HLA-A*31, <3% . In allelic groups of HLA-A*25, HLA-A*34, HLA-A*36, HLA-A*43, HLA-A*66, HLA-A*69 and HLA-A*74, this frequency was less than 1 %. The frequency of rare HLA-A allelic groups, including HLA-A*34, HLA-A*69 and HLA-A*74, showed a significant difference in the ethnic groups (p-value less than 0.05).
Conclusions
Identifying the frequency of HLA alleles in different ethnicities can identify similarities and differences in allelic groups in those ethnicities.
Key words: HLA, Iran, Ethnicity
Received: 13 Apr 2022
Accepted: 9 Aug 2022
Correspondence: Yari F., PhD of Immunology. Professor of Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine.
P.O.Box: 14665-1157, Tehran, Iran. Tel: (+9821) 82052237; Fax: (+9821) 88601555
E-mail: f.yari@ibto.ir
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Yari F, Bagheri N, Teimourpour A, Zamanvaziri M, Sabaghi F, Mortezapour F. Frequency of rare HLA-A allelic groups in Gilak, Lor, Kurdish and Arab ethnic groups of Iran. Sci J Iran Blood Transfus Organ 2022; 19 (3) :191-199 URL: http://bloodjournal.ir/article-1-1448-en.html
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