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We present a two-stage genomewide scan for osteoarthritis-susceptibility loci, using 481 families that each contain at least one affected sibling pair. The first stage, with 272 microsatellite markers and 297 families, involved a sparse map covering 23 chromosomes at intervals of approximately 15 cM. Sixteen markers that showed evidence of linkage at nominal P</=.05 were then taken through to the second stage, with an additional 184 families. This second stage confirmed evidence of linkage for markers on chromosome 11q. Additional markers from this region were then typed to create a denser map. We obtained a maximum single-point LOD score, at D11S901, of 2.40 (P=.0004) and a maximum multipoint-LOD score of 3.15, between markers D11S1358 and D11S35. A subset of 196 of the 481 families, comprising affected female sibling pairs, generated a corrected LOD score of 2.54 (P=.0003) for marker D11S901, with evidence for linkage extending 12 cM proximal to this marker. When we stratified for affected male sibling pairs there was no evidence of linkage to chromosome 11. Our data suggest that a female-specific susceptibility gene for idiopathic osteoarthritis is located on chromosome 11q.

Original publication

DOI

10.1086/302465

Type

Journal article

Journal

American journal of human genetics

Publication Date

07/1999

Volume

65

Pages

167 - 174

Addresses

Wellcome Trust Centre for Human Genetics, Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom.

Keywords

Chromosomes, Human, Pair 11, Humans, Osteoarthritis, Genetic Predisposition to Disease, Arthroplasty, Replacement, Arthroplasty, Replacement, Hip, Microsatellite Repeats, Lod Score, Middle Aged, Female, Male, Genetic Linkage