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  • Title: Further evidence for the role of genes on chromosome 2 and chromosome 5 in the inheritance of pulmonary function.
    Author: Malhotra A, Peiffer AP, Ryujin DT, Elsner T, Kanner RE, Leppert MF, Hasstedt SJ.
    Journal: Am J Respir Crit Care Med; 2003 Sep 01; 168(5):556-61. PubMed ID: 12791583.
    Abstract:
    The spirometric measurements FEV1, FVC, and the ratio FEV1/FVC are used in the diagnosis of lung function disorders. Therefore, understanding the genetics underlying these spirometric measurements will increase our knowledge of the genetics of pulmonary function. FEV1 and FVC were measured on 264 members of 26 Utah Genetic Reference pedigrees, originally collected for the Centre d'Etude du Polymorphisme Humain genetic mapping project. Using segregation analysis, we inferred major locus inheritance of the FEV1/FVC ratio, although we could not distinguish between a dominant or recessive mode of inheritance. No evidence of major locus inheritance was found for either FEV1 or FVC. Suggestive evidence of linkage for the ratio FEV1/FVC was found on chromosome 2 (heterogeneity lod = 2.36, dominant model) and chromosome 5 (heterogeneity lod = 2.23, recessive model), replicating linkages from other studies. In addition, nonparametric variance component linkage analysis showed linkage of FEV1/FVC in both of these regions, providing further support to the results. No nonparametric lod scores over 1.5 were obtained for either FEV1 or FVC.
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