PMID- 9768636 OWN - NLM STAT- MEDLINE DCOM- 19981105 LR - 20111117 IS - 0021-972X (Print) IS - 0021-972X (Linking) VI - 83 IP - 10 DP - 1998 Oct TI - Linkage disequilibrium between the human leukocyte antigen class II region of the major histocompatibility complex and Graves' disease: replication using a population case control and family-based study. PG - 3394-7 AB - Early case control studies found association of the DRB1 allele, DR3, with Graves' disease (GD). Recent reports, claim the DQA1 allele, DQA1*0501, to be the primary susceptibility determinant within the human leukocyte antigen (HLA) class II region. We typed 228 GD patients, 364 controls, and 98 families (parents, GD, and unaffected sibling) at the DRB1, DQB1, and DQA1 loci. The case control study showed an increased frequency in GD, compared to controls, of DRB1*0304 (47% vs. 24%; pc < 1.4 x 10(-5)), DQB1*02 (58% vs. 46%; pc < 0.035), DQB1*0301/4 (42% vs. 28%; pc < 3.5 x 10(-3)) and DQA1*0501 (67%, vs. 39%; pc < 7 x 10(-6)). The DRB1*0304-DQB1*02-DQA1*0501 haplotype was increased in GD (47%) vs. controls (24%; pc < 1.8 x 10(-5); odds ratio = 2.72). No independent association of these alleles was observed. Preferential transmission of DRB1*0304-DQB1*02-DQA1*0501 from parents heterozygous for the haplotype to GD siblings (72%) was seen in the families (chi2 = 11.95; 1 d.f.; P = 0.0005). Lack of preferential transmission to unaffected siblings (53%; chi2 = 0.19; 1 d.f.; P = NS) excluded segregation distortion. These results show that linkage disequilibrium between GD and the HLA class II region is due to the extended haplotype DRB1*0304-DQB1*02-DQA1*0501. FAU - Heward, J M AU - Heward JM AD - Department of Medicine, University of Birmingham, Queen Elizabeth Hospital, United Kingdom. FAU - Allahabadia, A AU - Allahabadia A FAU - Daykin, J AU - Daykin J FAU - Carr-Smith, J AU - Carr-Smith J FAU - Daly, A AU - Daly A FAU - Armitage, M AU - Armitage M FAU - Dodson, P M AU - Dodson PM FAU - Sheppard, M C AU - Sheppard MC FAU - Barnett, A H AU - Barnett AH FAU - Franklyn, J A AU - Franklyn JA FAU - Gough, S C AU - Gough SC LA - eng GR - Wellcome Trust/United Kingdom PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Clin Endocrinol Metab JT - The Journal of clinical endocrinology and metabolism JID - 0375362 RN - 0 (HLA-DQ Antigens) RN - 0 (HLA-DQ alpha-Chains) RN - 0 (HLA-DQ beta-Chains) RN - 0 (HLA-DQA1 antigen) RN - 0 (HLA-DQB1 antigen) RN - 0 (HLA-DR Antigens) RN - 0 (HLA-DRB1 Chains) RN - 0 (Histocompatibility Antigens Class II) SB - IM CIN - J Clin Endocrinol Metab. 1998 Oct;83(10):3391-3. PMID: 9768635 MH - Alleles MH - Case-Control Studies MH - Fathers MH - Female MH - Genetic Linkage/*genetics MH - Graves Disease/*genetics/*immunology MH - HLA-DQ Antigens/genetics MH - HLA-DQ alpha-Chains MH - HLA-DQ beta-Chains MH - HLA-DR Antigens/genetics MH - HLA-DRB1 Chains MH - Haplotypes MH - Histocompatibility Antigens Class II/*genetics MH - Humans MH - Male MH - Mothers MH - Reference Values EDAT- 1998/10/13 00:00 MHDA- 1998/10/13 00:01 CRDT- 1998/10/13 00:00 PHST- 1998/10/13 00:00 [pubmed] PHST- 1998/10/13 00:01 [medline] PHST- 1998/10/13 00:00 [entrez] AID - 10.1210/jcem.83.10.5137 [doi] PST - ppublish SO - J Clin Endocrinol Metab. 1998 Oct;83(10):3394-7. doi: 10.1210/jcem.83.10.5137.