國家衛生研究院 NHRI:Item 3990099045/4224
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/4224


    Title: Incorporating covariates into multipoint association mapping in the case-parent design
    Authors: Chiu, YF;Liang, KY;Pan, WH
    Contributors: Division of Biostatistics and Bioinformatics
    Abstract: Background/Aims: To improve the efficiency of disease locus localization in association mapping using case-parent designs and to assess or account for the main covariate effects and gene-covariate interaction effects, while localizing the disease locus. Methods: The present study extends a multipoint fine-mapping approach to incorporate covariates into the association mapping of case-parent designs through parametric and non-parametric modeling. This approach is based on the expected preferential-allele-transmission statistics for transmission from either parent to an affected child. Results: Simulation studies indicate that the efficiency in estimating the disease locus increases considerably when incorporating a covariate associated with the disease. This is especially true when the genetic effect of the disease locus is small. The proposed approach was applied to a young-onset hypertension data sample. The relative efficiency of estimating the locus of young-onset hypertension increases 110-fold after incorporating triglyceride into the association mapping while localizing the disease variant in the lipoprotein lipase gene in the non-parametric model. By incorporating the information of SNP variants into the fine-mapping, the proposed method further assesses the gene-gene interactions between the SNP and the disease locus. Conclusion: With the incorporation of covariates, the proposed method cannot only improve efficiency in estimating disease loci, but can also elucidate the etiology of a complex disease.
    Date: 2010-03-24
    Relation: Human Heredity. 2010 Mar 24;69(4):229-241.
    Link to: http://dx.doi.org/10.1159/000291986
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0001-5652&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000277281200002
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=77949550786
    Appears in Collections:[Yen-Feng Chiu] Periodical Articles
    [Kung-Yee Liang] Periodical Articles

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