PMID- 11994372 OWN - NLM STAT- MEDLINE DCOM- 20020614 LR - 20111117 IS - 0021-972X (Print) IS - 0021-972X (Linking) VI - 87 IP - 5 DP - 2002 May TI - The Karlsburg type 1 diabetes risk study of a normal schoolchild population: association of beta-cell autoantibodies and human leukocyte antigen-DQB1 alleles in antibody-positive individuals. PG - 2254-61 AB - The intent of this study was to analyze the prevalence of diabetes-associated autoantibodies (AAbs) at or above the 99(th) percentile as well as their association with human leukocyte antigen (HLA)-DQB1 alleles in a normal population of 6,337 schoolchildren. AAbs against glutamic acid decarboxylase (GADA), tyrosine phosphatase IA-2 (IA-2A), and/or insulin (IAA) were detected by (125)I-antigen binding and islet cell antibodies (ICA) immunohistochemically in 181 (2.86%) schoolchildren. HLA-DQB1 alleles were analyzed in 178/181 children and subsequently compared with 119 controls. 2.37% (150/6,337) possessed only one AAb, whereas 0.49% (31/6,337) had multiple AAbs but at increased levels (P < 0.001). Subjects with GADA, IA-2A, or IAA revealed an increased frequency of the diabetes-associated HLA-DQB1 alleles *0302 and/or *02 (P = 0.001-0.006) as well as a decreased frequency in the protective allele *0602 (P < 0.001-0.022). DQB1*0602 was completely absent within children with multiple AAbs or with GADA, IA2-A, or IAA at or above the 99.9(th) percentile. In comparison to children with single AAbs, the frequency of associated/protective alleles of children with multiple AAbs was enhanced/diminished (P = 0.004-0.009). The study shows that also in the general population the multiple AAbs or high level single AAbs predict rather certainly a HLA-DQB1-mediated diabetes susceptibility as shown for first degree relatives of type 1 diabetic patients. FAU - Schlosser, Michael AU - Schlosser M AD - Institute of Pathophysiology, Ernst Moritz Arndt University of Greifswald, Karlsburg D-17495, Germany. FAU - Strebelow, Martina AU - Strebelow M FAU - Wassmuth, Ralf AU - Wassmuth R FAU - Arnold, Marie-Luise AU - Arnold ML FAU - Breunig, Isabel AU - Breunig I FAU - Rjasanowski, Ilona AU - Rjasanowski I FAU - Ziegler, Brigitte AU - Ziegler B FAU - Ziegler, Manfred AU - Ziegler M LA - eng 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 (Autoantibodies) RN - 0 (HLA-DQ Antigens) RN - 0 (HLA-DQ beta-Chains) RN - 0 (HLA-DQB1 antigen) SB - IM MH - Adult MH - *Alleles MH - Autoantibodies/*analysis MH - Child MH - Diabetes Mellitus, Type 1/etiology/*genetics/*immunology MH - Female MH - Gene Frequency MH - Genetic Predisposition to Disease MH - HLA-DQ Antigens/*genetics MH - HLA-DQ beta-Chains MH - Humans MH - Islets of Langerhans/*immunology MH - Male MH - Predictive Value of Tests MH - Reference Values MH - Risk Factors EDAT- 2002/05/08 10:00 MHDA- 2002/06/18 10:01 CRDT- 2002/05/08 10:00 PHST- 2002/05/08 10:00 [pubmed] PHST- 2002/06/18 10:01 [medline] PHST- 2002/05/08 10:00 [entrez] AID - 10.1210/jcem.87.5.8491 [doi] PST - ppublish SO - J Clin Endocrinol Metab. 2002 May;87(5):2254-61. doi: 10.1210/jcem.87.5.8491.