Evidence for a new Graves disease susceptibility locus at chromosome 18q21

被引:51
作者
Vaidya, B
Imrie, H
Perros, P
Young, ET
Kelly, WF
Carr, D
Large, DM
Toft, AD
Kendall-Taylor, P
Pearce, SHS
机构
[1] Univ Newcastle Upon Tyne, Sch Clin Med Sci, Dept Endocrinol, Newcastle Upon Tyne NE2 4HH, Tyne & Wear, England
[2] Freeman Rd Hosp, Dept Med, Newcastle Upon Tyne NE7 7DN, Tyne & Wear, England
[3] Wansbeck Gen Hosp, Dept Med, Ashington, Northumbria, England
[4] Middlesbrough Gen Hosp, Diabet Care Ctr, Middlesbrough TS5 5AZ, Cleveland, England
[5] N Tees Gen Hosp, Dept Med, Stockton On Tees, England
[6] Cumberland Infirm, Dept Med, Carlisle, England
[7] Royal Infirm, Endocrine Unit, Edinburgh, Midlothian, Scotland
基金
英国惠康基金;
关键词
D O I
10.1086/302908
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
Graves disease (GD) is a common autoimmune thyroid disorder that is inherited as a complex multigenic trait. By using a single microsatellite marker at each locus, we screened the type 1 diabetes loci IDDM4 IDDM5, IDDM6, IDDM8, and IDDM10 and the fucosyltransferase-2 locus for linkage in sib pairs with GD. This showed a two-point nonparametric linkage (NPL) score of 1.57 (P = .06) at the IDDM6 marker D18S41, but NPL scores were <1.0 at the other five loci. Thus, the investigation of the IDDM6 locus was extended by genotyping 11 microsatellite markers spanning 48 cM across chromosome 18q12-q22 in 81 sib pairs affected with autoimmune thyroid disease (AITD). Multipoint analysis, designating all AITD sib pairs as affected, showed a peak NPL score of 3.46 (P = .0003), at the marker D18S487. Designation of only GD cases as affected (74 sib pairs) showed a peak NPL score of 3.09 (P = .001). Linkage to this region has been demonstrated in type 1 diabetes (IDDM6), rheumatoid arthritis, and systemic lupus erythematosus, which suggests that this locus may have a role in several forms of autoimmunity.
引用
收藏
页码:1710 / 1714
页数:5
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