Volume 1, Number 1 (18 2001)                   ijdld 2001, 1(1): 41-50 | Back to browse issues page


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Zamani M, Neijrup J, Kasmian J. STRONG LINKAGE BETWEEN TYPE 1 DIABETES AND THE DRB1LYS71+ ALLELE IN 81 DANISH DIABETIC FAMILIES. ijdld. 2001; 1 (1) :41-50
URL: http://ijdld.tums.ac.ir/article-1-494-en.html

Abstract:   (34368 Views)
Background: Numerous studies have confirmed the association between type 1 diabetes mellitus (DM1) and polymorphisms of HLA genes on chromosome 6p21. Controlled DNA studies in Belgium recently have found a statistically significant association between DM1 and certain HLA class II genes, especially DRB1Lys71+.
Methods: 81 Danish families (each with at least 2 members with DM1) and 82 healthy controls were assessed for HLA polymorphisms. 54 of the 81 diabetic families were also assessed for polymorphisms at the HLA-B-DQB1, HLA-B-DQA1, and TNF-A and TNF-B loci. Affected sib-pair analysis was used to study correlation between DM1 and DRB1 alleles encoding Lys71+.
Results: Homozygous expression of DRB1Lys71+ carried a relative risk (RR) of 103.5 for DM1. There was a very strong correlation (p<1×10-6) between DM1 and DRB1 alleles encoding Lys71+. Family-based association studies showed that DRB1Lys71+ was the most important determinant of DM1 in carriers (haplotype relative risk = 8.38). Haplotype analysis confirmed this.
Conclusion: The DRB1Lys71+ allele confers genetic predisposition to DM1 most strongly of all.
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Type of Study: Research | Subject: General
Published: 2013/09/10

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