PMID- 14700595 OWN - NLM STAT- MEDLINE DCOM- 20040909 LR - 20190906 IS - 0198-8859 (Print) IS - 0198-8859 (Linking) VI - 65 IP - 1 DP - 2004 Jan TI - HLA haplotypes associated with type 1 diabetes mellitus in North Indian children. PG - 47-53 AB - Human leukocyte antigen (HLA) encoded susceptibility to develop type 1 diabetes mellitus (T1DM) has been investigated in children from North India. The results revealed significantly increased prevalence of HLA-A26, -B8, and -B50 among patients and strong positive association of the disease with DRB1*0301 (82.1% vs 13.9%, chi2=71.3, odds ratio [OR]=28.3) and a negative association with DRB1*02 (chi2=12.2, PF=38.5). HLA-DQB1*0201 occurred in 96.4% of the patients, whereas the heterodimer DQA1*0501-DQB1*0201 was present in 82.1% of patients (60.7% in single dose and 21.4% in double dose) and revealed significant deviation from the healthy controls (chi2=74.1, pc=6.0E-10). In addition to DRB1*03, positive association was also observed with DRB1*09 (14.3% vs 1.3%, chi2=13.4) and DRB1*04 (39.3% vs 15.6%, chi2=8.39). No HLA association was observed in relation to residual pancreatic beta-cell function or associated thyroid autoimmunity. Family analysis revealed involvement of multiple DR3+ve haplotypes with T1DM in North Indian children with A26-B8-DRB1*03 (25% vs 3.5%, chi2=16.9, p=3.96E-05) and Ax-B50-DRB1*03 (25% vs 0.7%, chi2=44.7, p=9.88E-11) being the most frequent haplotypes encountered among patients. The classical Caucasian haplotype A1-B8-DRB1*03 was infrequent (7.2%) among the diabetic children. The study highlights the race specificity of HLA association and disease associated HLA haplotypes in T1DM among North Indian children. FAU - Kanga, Uma AU - Kanga U AD - Department of Transplant Immunology, All India Institute of Medical Sciences, New Delhi, India. FAU - Vaidyanathan, Balu AU - Vaidyanathan B FAU - Jaini, Ritika AU - Jaini R FAU - Menon, Puthezath S N AU - Menon PS FAU - Mehra, Narinder K AU - Mehra NK LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Hum Immunol JT - Human immunology JID - 8010936 RN - 0 (HLA Antigens) RN - 0 (HLA-DQ Antigens) RN - 0 (HLA-DQ beta-Chains) RN - 0 (HLA-DQB1 antigen) RN - 0 (HLA-DR Antigens) RN - 0 (HLA-DRB1 Chains) RN - 0 (HLA-DRB1*03:01 antigen) SB - IM MH - Adolescent MH - Alleles MH - Autoimmune Diseases/ethnology/*genetics MH - Child MH - Child, Preschool MH - Diabetes Mellitus, Type 1/ethnology/*genetics MH - Female MH - Genetic Predisposition to Disease MH - Genotype MH - HLA Antigens/*analysis/genetics MH - HLA-DQ Antigens/analysis/genetics MH - HLA-DQ beta-Chains MH - HLA-DR Antigens/analysis/genetics MH - HLA-DRB1 Chains MH - Haplotypes/*genetics MH - Humans MH - India/epidemiology MH - Infant MH - Male MH - Phenotype MH - Thyroiditis, Autoimmune/ethnology/genetics EDAT- 2004/01/01 05:00 MHDA- 2004/09/10 05:00 CRDT- 2004/01/01 05:00 PHST- 2004/01/01 05:00 [pubmed] PHST- 2004/09/10 05:00 [medline] PHST- 2004/01/01 05:00 [entrez] AID - S0198885903006438 [pii] AID - 10.1016/j.humimm.2003.10.013 [doi] PST - ppublish SO - Hum Immunol. 2004 Jan;65(1):47-53. doi: 10.1016/j.humimm.2003.10.013.