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Title: Exclusion of linkage of Crohn's disease to previously reported regions on chromosomes 12, 7, and 3 in the Belgian population indicates genetic heterogeneity
Authors: Vermeire, Severine ×
Peeters, M
Vlietinck, Robert
Parkes, M
Satsangi, J
JEWELL, DEREK
Rutgeerts, Paul #
Issue Date: Dec-2000
Series Title: Inflammatory Bowel Diseases. vol:6 issue:3 pages:165-70
Abstract: Susceptibility to inflammatory bowel disease (IBD) is significantly determined by genetic factors. Linkage data from genome-wide searches have identified regions on chromosomes 16, 12, 7, and 3. Our goal was to replicate these four regions in a Belgian population of IBD families. Fifty-four IBD families were studied (47 with Crohn's disease [CD] and 7 with mixed CD and ulcerative colitis, containing 79 affected sibpairs (68 CD only, 11 mixed) for the regions previously implicated to chromosomes 16, 12, 7, and 3. In this study, no evidence for linkage was found on any of the four chromosomal regions studied for either the whole IBD dataset or the CD subgroup. The multipoint maximum logarithm of odds scores were less than 0.7 for all four regions. Exclusion mapping could significantly exclude chromosomes 3, 7, and 12. Despite earlier findings, we could significantly exclude linkage of CD with previously reported regions on chromosomes 12, 7, and 3, and could not find evidence for linkage to chromosome 16. It is important to report these findings in light of the genetic heterogeneity of IBD. A genome-wide search on a larger group of affected siblings is being analyzed to detect other possible susceptibility loci in the Belgian population.
ISSN: 1078-0998
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Clinical Genetics Section (-)
Translational Research in GastroIntestinal Disorders
Animal Research Center
× corresponding author
# (joint) last author

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