PMID- 17714036 OWN - NLM STAT- MEDLINE DCOM- 20080204 LR - 20221207 IS - 1050-7256 (Print) IS - 1050-7256 (Linking) VI - 17 IP - 11 DP - 2007 Nov TI - HLA-DQ haplotypes in Spanish and German families with Graves' disease: contribution to DQA1*0501-DQB1*0301 mediated genetic susceptibility from fathers. PG - 1131-5 AB - Genetic and environmental factors are involved in the pathogenesis of Graves' disease. The human leukocyte antigen (HLA) locus is considered to be one risk factor for Graves' disease but parent of origin effects have not been studied. Therefore, we investigated the transmission of HLA risk haplotypes DQA1*0501, DQA1*0501-DQB1*0201 (DQ2), and DQA1*0501-DQB1*0301 (DQ7) in two Graves' disease family-cohorts from Spain and Germany. Altogether 208 trio-families (109 from Spain and 99 from Germany; n = 624 individuals) with Graves' disease were genotyped for HLA-DQ alleles DQA1*0501 and the haplotypes DQA1*0501-DQB1*0201 (DQ2) and DQA1*0501-DQB1*0301 (DQ7). Since both family groups-German and Spanish-showed the same pattern of HLA transmission and nontransmission, they were analyzed together. HLA DQA1*0501 and DQA1*0501-DQB1*0201 (DQ2) were significantly overtransmitted from the parents to the affected offspring (204 vs. 131, p = 0.0057, pc = 0.0228 and 109 vs. 55, p = 0.0036, pc = 0.0144, respectively). These haplotypes were preferentially transmitted from fathers and DQA1*0501-DQB1*0301 (DQ7) was also more prevalent in fathers (24.0% vs. 17.1%, p = 0.0162, pc = 0.0648). We conclude, that HLA DQA1*0501 and DQA1*0501-DQB1*0201 (DQ2) are strongly associated with Graves' disease in both populations. A parent of origin effect of risk haplotypes can not be excluded at present, warranting further family studies. FAU - Ramos-Lopez, Elizabeth AU - Ramos-Lopez E AD - Department of Internal Medicine I, Division of Endocrinology, Diabetes and Metabolism, University Hospital Frankfurt, Theodor-Stern-Kai 7, Frankfurt am Main, Germany. FAU - Fernandez-Balsells, Mercedes AU - Fernandez-Balsells M FAU - Kahles, Heinrich AU - Kahles H FAU - Seidl, Christian AU - Seidl C FAU - Ferrer, Jorge AU - Ferrer J FAU - Badenhoop, Klaus AU - Badenhoop K LA - eng PT - Journal Article PL - United States TA - Thyroid JT - Thyroid : official journal of the American Thyroid Association JID - 9104317 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) SB - IM MH - Cohort Studies MH - *Fathers MH - Female MH - Genetic Predisposition to Disease/*genetics MH - Germany MH - Graves Disease/*genetics/*immunology MH - HLA-DQ Antigens/*genetics MH - HLA-DQ alpha-Chains MH - HLA-DQ beta-Chains MH - *Haplotypes MH - Humans MH - Male MH - Spain MH - White People/genetics EDAT- 2007/08/24 09:00 MHDA- 2008/02/05 09:00 CRDT- 2007/08/24 09:00 PHST- 2007/08/24 09:00 [pubmed] PHST- 2008/02/05 09:00 [medline] PHST- 2007/08/24 09:00 [entrez] AID - 10.1089/thy.2006.0315 [doi] PST - ppublish SO - Thyroid. 2007 Nov;17(11):1131-5. doi: 10.1089/thy.2006.0315.