PMID- 10600012 OWN - NLM STAT- MEDLINE DCOM- 20000124 LR - 20190905 IS - 0198-8859 (Print) IS - 0198-8859 (Linking) VI - 60 IP - 11 DP - 1999 Nov TI - The influence of age at onset and gender on the HLA-DQA1, DQB1 association in Chinese children with insulin dependent diabetes mellitus. PG - 1131-7 AB - Certain alleles of human leukocyte antigen (HLA)-DR and -DQ genes have been strongly associated with susceptibility and resistance to insulin- dependent diabetes mellitus (IDDM). To further clarify the association of HLA DQ alleles with IDDM and the influence of age at onset and gender on the association with IDDM, we investigated the association of HLA-DQA1, -DQB1 in 54 childhood onset Chinese (21 male) IDDM patients and 65 normal controls by using polymerase chain reaction-sequence specific primer (PCR-SSP). The mean age plus or minus SD at onset of IDDM patients was 8.37+/-3.54 year old. Our results revealed that the frequencies of DQA1 *0301, *0302, DQB1 *0201, and *0302 in IDDM patients were significantly higher than that in the control group (p < 0.025, < 0.005, < 0.001, and < 0.001, respectively). The frequency of DQA1 *0301, *0302, DQB1 *0201, and *0302 were susceptible alleles to IDDM with relative risks of 2.0, 3.5, 5.0 and 4.3, respectively. The protective alleles to IDDM were DQA1 *0101, *0103, DQB1 *0301, *0503, and *0602. We divided IDDM patients into three groups according to age at onset (1-5, 6-10, and 11-15 years old). The frequency of DQA1 *0302 decreased as age increased, and the frequency of DQA1 *0501 increased as age increased. Our results also showed that male IDDM patients had higher frequencies of DQA *0501, DQB1 *0201 than female IDDM patients (p < 0.025 and < 0.025, respectively), while female IDDM patients had higher frequencies of DQB1 *0502 than male IDDM patients (p < 0.05). In our study significant susceptibility haplotypes to IDDM were DQA1 *0301-DQB1 *0302, DQA1 *0501-DQB1 *0201, DQA1 *0301-DQB1 *0201, and DQA *0302-DQB1 *0201. FAU - Chen, B H AU - Chen BH AD - Department of Clinical Laboratory, Kaohsiung Medical College Hospital, Taiwan, Republic of China. FAU - Chiang, C H AU - Chiang CH FAU - Lin, S R AU - Lin SR FAU - Chao, M G AU - Chao MG FAU - Tsai, S T AU - Tsai ST LA - eng PT - Journal Article PL - United States TA - Hum Immunol JT - Human immunology JID - 8010936 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 - Adolescent MH - Age of Onset MH - Alleles MH - Case-Control Studies MH - Child MH - Child, Preschool MH - China MH - Diabetes Mellitus, Type 1/*genetics/*immunology MH - Female MH - Gene Frequency MH - HLA-DQ Antigens/*genetics MH - HLA-DQ alpha-Chains MH - HLA-DQ beta-Chains MH - Haplotypes MH - Humans MH - Infant MH - Male MH - Sex Characteristics EDAT- 1999/12/22 00:00 MHDA- 1999/12/22 00:01 CRDT- 1999/12/22 00:00 PHST- 1999/12/22 00:00 [pubmed] PHST- 1999/12/22 00:01 [medline] PHST- 1999/12/22 00:00 [entrez] AID - S0198-8859(99)00106-8 [pii] AID - 10.1016/s0198-8859(99)00106-8 [doi] PST - ppublish SO - Hum Immunol. 1999 Nov;60(11):1131-7. doi: 10.1016/s0198-8859(99)00106-8.