title: The association between HLA class II haplotype with Graves' disease in Thai population.
abstract: The distribution of HLA-DRB1, -DQA1 and -DQB1 alleles were analysed in 124 Graves' disease (GD) patients compared to 124 normal controls in order to identify the alleles/haplotypes associated with GD in Thai population. The DRB1*1602-DQA1*0102-DQB1*0502 haplotype was significantly increased in GD patients (P = 0.0209, OR = 2.55). DRB1*07-DQA1*0201-DQB1*0201 haplotype (P = 0.039, OR = 0.32) and HLA-DRB1*12-DQA1*0601-DQB1*0301 haplotype (P = 0.0025, OR = 0.28) were significantly decreased in GD patients. Interestingly, a protective DRB1*07 allele in Thai population lacks an arginine at position 74 similar to DRB1*0311 (a protective allele in Caucasians). A significant association of DRB1*1602-DQA1*0102-DQB1*0502 and HLA-DRB1*12-DQA1*0601-DQB1*0301 alleles and haplotypes with GD was recently reported in Korean but not in any Caucasian studies. Thus, DRB1*1602 allele and closely linked haplotype, DRB1*1602-DQA1*0102-DQB1*0502, might serve as a marker for genetic susceptibility to GD in Asian population.
authors.affiliation: Inter-Department of Medical Microbiology, Graduate School, Chulalongkorn University, Bangkok, Thailand.
authors.forename: T
authors.initials: T
authors.lastname: Wongsurawat
authors.forename: J
authors.initials: J
authors.lastname: Nakkuntod
authors.forename: P
authors.initials: P
authors.lastname: Charoenwongse
authors.forename: T
authors.initials: T
authors.lastname: Snabboon
authors.forename: V
authors.initials: V
authors.lastname: Sridama
authors.forename: N
authors.initials: N
authors.lastname: Hirankarn
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D005260:Female; D005787:Gene Frequency; D020022:Genetic Predisposition to Disease; D005828:Genetics, Population; D006111:Graves Disease / Q000235:genetics* / Q000276:immunology; D006683:HLA-DQ Antigens / Q000235:genetics; D059848:HLA-DQ alpha-Chains; D059866:HLA-DQ beta-Chains; D006684:HLA-DR Antigens / Q000235:genetics; D059811:HLA-DRB1 Chains; D006239:Haplotypes; D000949:Histocompatibility Antigens Class II / Q000235:genetics* / Q000276:immunology; D006801:Humans; D008297:Male; D008875:Middle Aged; D013785:Thailand / Q000453:epidemiology
chemical_list: D006683:HLA-DQ Antigens; D059848:HLA-DQ alpha-Chains; D059866:HLA-DQ beta-Chains; C069050:HLA-DQA1 antigen; C069051:HLA-DQB1 antigen; D006684:HLA-DR Antigens; D059811:HLA-DRB1 Chains; D000949:Histocompatibility Antigens Class II