PMID- 2001978 OWN - NLM STAT- MEDLINE DCOM- 19910412 LR - 20190903 IS - 0198-8859 (Print) IS - 0198-8859 (Linking) VI - 30 IP - 1 DP - 1991 Jan TI - B27-bearing HLA haplotypes in rheumatoid arthritis: characterization in Finnish patients. PG - 7-10 AB - The frequency of human leukocyte antigen (HLA)-B27 has been found to be increased in rheumatoid arthritis (RA) in Finland and marginally also in some other populations. In the present study HLA-B27-bearing haplotypes in RA patients were found to carry DR1 and DR4 genes more often than do B27 haplotypes in control population. B27;DR4,DW14;DQw7 was a typical B27-DR4 haplotype whereas DR4 in the majority of other haplotypes occurs with Dw4 and DQw8 genes. The result indicates that the B27 association with RA is not independent of DR1 and DR4, but whether the B27;DR4;DQw7 haplotype subjects a person to a higher disease risk than do other DR4 haplotypes, or is associated with a more severe course of the disease, remains to be investigated. FAU - Ilonen, J AU - Ilonen J AD - Department of Medical Microbiology, University of Oulu, Finland. FAU - Hakala, M AU - Hakala M FAU - Reijonen, H AU - Reijonen H FAU - Tiilikainen, A AU - Tiilikainen A 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-B27 Antigen) RN - 0 (HLA-DR Antigens) SB - IM MH - Arthritis, Rheumatoid/genetics/*immunology MH - Gene Frequency MH - HLA-B27 Antigen/*genetics MH - HLA-DR Antigens/genetics MH - Haplotypes MH - Humans EDAT- 1991/01/01 00:00 MHDA- 1991/01/01 00:01 CRDT- 1991/01/01 00:00 PHST- 1991/01/01 00:00 [pubmed] PHST- 1991/01/01 00:01 [medline] PHST- 1991/01/01 00:00 [entrez] AID - 0198-8859(91)90063-F [pii] AID - 10.1016/0198-8859(91)90063-f [doi] PST - ppublish SO - Hum Immunol. 1991 Jan;30(1):7-10. doi: 10.1016/0198-8859(91)90063-f.