PMID- 21388358 OWN - NLM STAT- MEDLINE DCOM- 20110627 LR - 20110310 IS - 1399-0039 (Electronic) IS - 0001-2815 (Linking) VI - 77 IP - 4 DP - 2011 Apr TI - No extreme genetic risk for type 1 diabetes among DR3/4-DQ8 siblings sharing both extended HLA haplotypes with their diabetic proband. PG - 338-40 LID - 10.1111/j.1399-0039.2011.01636.x [doi] AB - An extreme genetic risk for type 1 diabetes (T1D) was reported for DR3/4-DQ8 siblings sharing both extended human leukocyte antigen (HLA) haplotypes identical-by-descent (IBD) with their diabetic proband. We attempted to replicate this finding in our prospective Dutch T1D cohort and in families from the Type 1 Diabetes Genetics Consortium (T1DGC). Only 2 of the 14 Dutch siblings, sharing both DR3-DQ2/DR4-DQ8 haplotypes IBD with their diabetic proband, developed T1D in a 12-year follow-up period. No differential sharing of HLA haplotypes or significant transmission distortion in parents homozygous for HLA risk alleles was found in T1DGC material. Therefore, we could not confirm the reported extreme risk for T1D, suggesting that the risk conferred by other HLA complex loci is moderate. CI - (c) 2011 John Wiley & Sons A/S. FAU - Eerligh, P AU - Eerligh P AD - Department of Immunohaematology & Blood Transfusion, Leiden University Medical Center, Leiden, The Netherlands. FAU - Koeleman, B P C AU - Koeleman BP FAU - Lie, B A AU - Lie BA FAU - Roep, B O AU - Roep BO FAU - Thorsby, E AU - Thorsby E LA - eng GR - U01 DK062418/DK/NIDDK NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - England TA - Tissue Antigens JT - Tissue antigens JID - 0331072 RN - 0 (HLA-DQ Antigens) RN - 0 (HLA-DQ8 antigen) RN - 0 (HLA-DR3 Antigen) RN - 0 (HLA-DR4 Antigen) SB - IM MH - Adolescent MH - *Alleles MH - Child MH - Cohort Studies MH - Diabetes Mellitus, Type 1/*genetics MH - Female MH - Genetic Predisposition to Disease MH - HLA-DQ Antigens MH - HLA-DR3 Antigen/*genetics MH - HLA-DR4 Antigen/*genetics MH - Haplotypes MH - Humans MH - Male MH - Netherlands MH - Risk Factors MH - *Siblings EDAT- 2011/03/11 06:00 MHDA- 2011/06/28 06:00 CRDT- 2011/03/11 06:00 PHST- 2011/03/11 06:00 [entrez] PHST- 2011/03/11 06:00 [pubmed] PHST- 2011/06/28 06:00 [medline] AID - 10.1111/j.1399-0039.2011.01636.x [doi] PST - ppublish SO - Tissue Antigens. 2011 Apr;77(4):338-40. doi: 10.1111/j.1399-0039.2011.01636.x.