title: HLA class I genotyping including HLA-B*51 allele typing in the Iranian patients with Behçet's disease.
abstract: It is well known that Behçet's disease (BD) is strongly associated with human leukocyte antigen (HLA) B51 in many ethnic groups. However, there has been no published report as yet with respect to this association among the Iranian people. Furthermore, since it is now known that the B51 antigen can be encoded by 21 alleles, B*5101-B*5121, we performed HLA-B*51 allele typing as well as HLA class I genotyping of 48 Iranian patients with this disease. As a result, the frequency of the B*51 allele was significantly higher (62.1%) in the patient group as compared with the ethnically matched control group (31.8%) (Pc=0.067, R.R.=3.51). In the genotyping of B*51 alleles, 33 out of the 36 B*51-positive patients possessed B*5101 and the remaining 3 carried B*5108. This study revealed that Iranian patients with BD also had a strong association with HLA-B51. In addition, this significantly high incidence of HLA-B*51 was found to be caused by an increase in both the HLA-B*5101 and HLA-B*5108 alleles. However, there was no significant difference in the HLA-B*51 allelic distribution between the patient and control groups.
authors.affiliation: Department of Ophthalmology, Yokohama City University School of Medicine, Kanazawa-ku, Yokohama, Kanagawa, Japan.
authors.forename: N
authors.initials: N
authors.lastname: Mizuki
authors.forename: M
authors.initials: M
authors.lastname: Ota
authors.forename: Y
authors.initials: Y
authors.lastname: Katsuyama
authors.forename: K
authors.initials: K
authors.lastname: Yabuki
authors.forename: H
authors.initials: H
authors.lastname: Ando
authors.forename: M
authors.initials: M
authors.lastname: Yoshida
authors.forename: K
authors.initials: K
authors.lastname: Onari
authors.forename: B
authors.initials: B
authors.lastname: Nikbin
authors.forename: F
authors.initials: F
authors.lastname: Davatchi
authors.forename: H
authors.initials: H
authors.lastname: Chams
authors.forename: A A
authors.initials: AA
authors.lastname: Ghaderi
authors.forename: S
authors.initials: S
authors.lastname: Ohno
authors.forename: H
authors.initials: H
authors.lastname: Inoko
mesh_terms: D000483:Alleles; D001528:Behcet Syndrome / Q000235:genetics* / Q000276:immunology*; D005805:Genes, MHC Class I / Q000235:genetics*; D005838:Genotype; D015234:HLA-A Antigens / Q000235:genetics; D015235:HLA-B Antigens / Q000235:genetics*; D059949:HLA-B51 Antigen; D006650:Histocompatibility Testing / Q000379:methods*; D006801:Humans; D007492:Iran; D010641:Phenotype
chemical_list: D015234:HLA-A Antigens; D015235:HLA-B Antigens; D059949:HLA-B51 Antigen