HLA-DR and -DQ phenotypes in inflammatory bowel disease: a meta-analysis
BACKGROUND Susceptibility to inflammatory bowel disease (IBD) is partially genetically determined and the HLA class II genes are candidates for a role in genetic susceptibility to IBD, because their products play a central role in the immune response. Multiple studies have reported associations betw...
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Published in | Gut Vol. 45; no. 3; pp. 395 - 401 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
London
BMJ Publishing Group Ltd and British Society of Gastroenterology
01.09.1999
BMJ BMJ Publishing Group LTD |
Subjects | |
Online Access | Get full text |
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Summary: | BACKGROUND Susceptibility to inflammatory bowel disease (IBD) is partially genetically determined and the HLA class II genes are candidates for a role in genetic susceptibility to IBD, because their products play a central role in the immune response. Multiple studies have reported associations between HLA-DR or -DQ phenotypes and either ulcerative colitis or Crohn’s disease, but much of the data are still controversial. AIMS To estimate overall associations between HLA class II phenotypes and IBD, and to establish the relative risk conferred by HLA-DR and -DQ phenotypes by meta-analysis. METHODS Medline was searched for publications reporting on the relation between IBD and HLA class II phenotypes. Raw data were extracted by recalculating the number of phenotypes or the number of alleles of the main antigens. Odds ratios and confidence intervals were calculated according to the Mantel-Haenszel method. RESULTS DR2, DR9, and DRB1*0103 were positively associated with ulcerative colitis, and a negative association was found for DR4 and ulcerative colitis. For Crohn’s disease a positive association was found with DR7, DRB3*0301, and DQ4 and a negative association with DR2 and DR3. CONCLUSIONS Both ulcerative colitis and Crohn’s disease are associated with specific HLA class II phenotypes. Further analysis of these phenotypes and subgroup analysis may elucidate how these alleles contribute to susceptibility to IBD. |
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Bibliography: | ark:/67375/NVC-Q8LG3WN2-5 istex:45637B72AA23DD66C0EE82C603D5E28E07B4B33B local:gutjnl;45/3/395 href:gutjnl-45-395.pdf PMID:10446108 Dr Stokkers. ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0017-5749 1468-3288 1458-3288 |
DOI: | 10.1136/gut.45.3.395 |