Identification of susceptibility loci for scoliosis in FIS families with triple curves
- 26 March 2010
- journal article
- research article
- Published by Wiley in American Journal of Medical Genetics Part A
- Vol. 152A (4), 846-855
- https://doi.org/10.1002/ajmg.a.33222
Abstract
The triple curve pattern (three lateral curvatures of equal severity) has been recognized as a distinct and unique clinical subtype of scoliosis. As part of a large study of familial idiopathic scoliosis (FIS), a subset of five families with a triple curve pattern (at least one member of each family having a triple curve) was evaluated to determine if this curve pattern was linked to any of the markers previously genotyped as part of the STRP‐based previous linkage screen. Model independent linkage analysis (SIBPAL, v4.5) of the initial genomic screen identified candidate regions on chromosomes 6 and 10 when FIS was analyzed both as qualitative and quantitative traits in single‐ and multipoint linkage analyses. Additional fine mapping analyses of this subgroup with SNPs corroborated the findings in these regions (P < 0.001). These regions have been previously linked to FIS, however, this is the first time these regions have been implicated in a clinically well‐defined subgroup and may suggest a unique genetic etiology for the formation of a triple curve.Keywords
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