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  • Title: Significant evidence for linkage to chromosome 5q13 in a genome-wide scan for asthma in an extended pedigree resource.
    Author: Teerlink CC, Camp NJ, Bansal A, Crapo R, Hughes D, Kort E, Rowe K, Cannon-Albright LA.
    Journal: Eur J Hum Genet; 2009 May; 17(5):636-43. PubMed ID: 19092775.
    Abstract:
    Asthma is a multifactorial disease with undetermined genetic factors. We performed a genome-wide scan to identify predisposition loci for asthma. The asthma phenotype consisted of physician-confirmed presence or absence of asthma symptoms. We analyzed 81 extended Utah pedigrees ranging from three to six generations, including 742 affected individuals, ranging from 2 to 40 per pedigree. We performed parametric multipoint linkage analyses with dominant and recessive models. Our analysis revealed genome-wide significant evidence of linkage to region 5q13 (log of the odds ratio (LOD)=3.8, recessive model), and suggestive evidence for linkage to region 6p21 (LOD=2.1, dominant model). Both the 5q13 and 6p21 regions indicated in these analyses have been previously identified as regions of interest in other genome-wide scans for asthma-related phenotypes. The evidence of linkage at the 5q13 region represents the first significant evidence for linkage on a genome-wide basis for this locus. Linked pedigrees localize the region to approximately between 92.3-105.5 Mb.
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