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首页> 外文期刊>International journal of immunogenetics >Human leucocyte antigens class II II allele and haplotype association with Type 1 Diabetes in Madeira Island (Portugal)
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Human leucocyte antigens class II II allele and haplotype association with Type 1 Diabetes in Madeira Island (Portugal)

机译:人类白细胞抗原II类等位基因和单倍型与马德拉岛(葡萄牙)的1型糖尿病患者

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Summary This study confirms for Madeira Island (Portugal) population the Type 1 Diabetes (T1D) susceptible and protective Human leucocyte antigens (HLA) markers previously reported in other populations and adds some local specificities. Among the strongest T1D HLA associations, stands out, as susceptible, the alleles DRB 1*04:05 ( OR ?=?7.3), DQB 1*03:02 ( OR ?=?6.1) and DQA 1*03:03 ( OR ?=?4.5), as well as the haplotypes DRB 1*04:05‐ DQA 1*03:03‐ DQB 1*03:02 ( OR ?=?100.9) and DRB 1*04:04‐ DQA 1*03:01‐ DQB 1*03:02 ( OR ?=?22.1), and DQB 1*06:02 ( OR ?=?0.07) and DRB 1*15:01‐ DQA 1*01:02‐ DQB 1*06:02 ( OR ?=?0.04) as protective. HLA ‐ DQA 1 positive for Arginine at position 52 (Arg52) ( OR ?=?15.2) and HLA ‐ DQB 1 negative for Aspartic acid at the position 57 (Asp57) ( OR ?=?9.0) alleles appear to be important genetic markers for T1D susceptibility, with higher odds ratio values than any single allele and than most of the haplotypes. Genotypes generated by the association of markers Arg52 DQA 1 positive and Asp57 DQB 1 negative increase T1D susceptibility much more than one would expected by a simple additive effect of those markers separately ( OR ?=?26.9). This study also confirms an increased risk for DRB 1*04/ DRB 1*03 heterozygote genotypes ( OR ?=?16.8) and also a DRB 1*04‐ DQA 1*03:01‐ DQB 1*03:02 haplotype susceptibility dependent on the DRB 1*04 allele ( DRB 1*04:01, OR ?=?7.9; DRB 1*04:02, OR ?=?3.2; DRB 1*04:04, OR ?=?22.1).
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