Abstract:
:Idiopathic scoliosis (IS) is the most common spinal deformity in children, and its etiology is unknown. To refine the search for genes underlying IS susceptibility, we ascertained a new cohort of 52 families and conducted a follow-up study of genomewide scans that produced evidence of linkage and association with 8q12 loci (multipoint LOD 2.77; P=.0028). Further fine mapping in the region revealed significant evidence of disease-associated haplotypes (P<1.0 x 10-4) centering over exons 2-4 of the CHD7 gene associated with the CHARGE (coloboma of the eye, heart defects, atresia of the choanae, retardation of growth and/or development, genital and/or urinary abnormalities, and ear abnormalities and deafness) syndrome of multiple developmental anomalies. Resequencing CHD7 exons and conserved intronic sequence blocks excluded coding changes but revealed at least one potentially functional polymorphism that is overtransmitted (P=.005) to affected offspring and predicts disruption of a caudal-type (cdx) transcription-factor binding site. Our results identify the first gene associated with IS susceptibility and suggest etiological overlap between the rare, early-onset CHARGE syndrome and common, later-onset IS.
journal_name
Am J Hum Genetjournal_title
American journal of human geneticsauthors
Gao X,Gordon D,Zhang D,Browne R,Helms C,Gillum J,Weber S,Devroy S,Swaney S,Dobbs M,Morcuende J,Sheffield V,Lovett M,Bowcock A,Herring J,Wise Cdoi
10.1086/513571subject
Has Abstractpub_date
2007-05-01 00:00:00pages
957-65issue
5eissn
0002-9297issn
1537-6605pii
S0002-9297(07)60951-3journal_volume
80pub_type
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journal_title:American journal of human genetics
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