Temporal trends of HLA genotype frequencies of type 1 diabetes patients in Sweden from 1986 to 2005 suggest altered risk

Temporal trends of HLA genotype frequencies of type 1 diabetes patients in Sweden from 1986 to 2005 suggest altered risk
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DOI:
10.1007/s00592-008-0048-5
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发表时间:
2008-12-01
期刊:
影响因子:
3.8
通讯作者:
Lernmark, A.
Lernmark, A.
中科院分区:
医学3区
文献类型:
--
作者:
Resic-Lindehammer, Sabina;Larsson, K.;Lernmark, A.

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本研究的目的是比较1986-1987年(n = 430)、1996-2000年(n = 342)和2003-2005年(n = 171)新诊断的1-18岁1型糖尿病患者的人类白细胞抗原(HLA)基因型频率。我们检验了HLA DQ基因型分布随时间变化的假设。采用聚合酶链反应扩增和DQ A1*和B1*等位基因特异性探针对瑞典1型糖尿病患者和对照组进行HLA分型。HLA DQA1*-B1*基因型0501-0201/0301-0302在1986-1987年占36%(153/430),1996-2000年占37%(127/342),2003-2005年下降到19% (33/171)(P < 0.0001)。0501-0201/0501-0201基因型从1986-1987年的1%增加到1996-2000年的7% (P = 0.0047), 2003-2005年增加到5% (P < 0.05)。这项针对1-18岁瑞典1型糖尿病患者的研究支持HLA风险存在时间变化的观点。
The aim of this study was to compare the frequency of human leukocyte antigen (HLA) genotypes in 1-18-year-old patients with type 1 diabetes newly diagnosed in 1986-1987 (n = 430), 1996-2000 (n = 342) and in 2003-2005 (n = 171). We tested the hypothesis that the HLA DQ genotype distribution changes over time. Swedish type 1 diabetes patients and controls were typed for HLA using polymerase chain reaction amplification and allele specific probes for DQ A1* and B1* alleles. The most common type 1 diabetes HLA DQA1*-B1*genotype 0501-0201/0301-0302 was 36% (153/430) in 1986-1987 and 37% (127/342) in 1996-2000, but decreased to 19% (33/171) in 2003-2005 (P < 0.0001). The 0501-0201/0501-0201 genotype increased from 1% in 1986-1987 to 7% in 1996-2000 (P = 0.0047) and to 5% in 2003-2005 (P > 0.05). This study in 1-18-year-old Swedish type 1 diabetes patients supports the notion that there is a temporal change in HLA risk.