This project combines the research efforts of Z01-HG000113, Z01-HG000124, Z01-HG000127 and Z01-HG000129 into a single theoretical project focused on the development of new methodology for the statistical genetic analysis of quantitative traits. During the past year work has continued on the development of a method that can be used to accurately measure the heritability attributable to specific single locus effects (ROMP). This method is being used in several ongoing collaborative projects. Work has also focused on the development of a new method that can be used to empirically estimate the type I error rate in genomic screening data without performing extensive simulations or theoretical approximations. This method uses the existing family structure and marker characteristics to obtain an appropriate estimate of the type I error rate of the genomic screen. An abstract of this work has been accepted as a platform presentation at this year's International Genetic Epidemiology Society meeting. Other efforts include the development of a new method to measure the consistency of the estimates of heritability in longitudinal studies, evaluation of the variance components method under different ascertainment schemes (formerly HG000113), the use of single nucleotide polymorphisms (SNPs) as an alternative for micro-satellite markers in linkage analysis (formerly HG-000124), and the use of moving averages and clustered markers as an alternative to multi-point linkage analysis (formerly HG-000129).

Agency
National Institute of Health (NIH)
Institute
National Human Genome Research Institute (NHGRI)
Type
Intramural Research (Z01)
Project #
1Z01HG000200-01
Application #
6681707
Study Section
(IDRB)
Project Start
Project End
Budget Start
Budget End
Support Year
1
Fiscal Year
2002
Total Cost
Indirect Cost
Name
Human Genome Research
Department
Type
DUNS #
City
State
Country
United States
Zip Code
Sung, Heejong; Ji, Fei; Levy, Deborah L et al. (2009) The power of linkage analysis of a disease-related endophenotype using asymmetrically ascertained sib pairs. Comput Stat Data Anal 53:1829-1842
Herrera-Galeano, J Enrique; Becker, Diane M; Wilson, Alexander F et al. (2008) A novel variant in the platelet endothelial aggregation receptor-1 gene is associated with increased platelet aggregability. Arterioscler Thromb Vasc Biol 28:1484-90
Roy-Gagnon, M-H; Mathias, R A; Fallin, M D et al. (2008) An extension of the regression of offspring on mid-parent to test for association and estimate locus-specific heritability: the revised ROMP method. Ann Hum Genet 72:115-25
Lekman, Magnus; Laje, Gonzalo; Charney, Dennis et al. (2008) The FKBP5-gene in depression and treatment response--an association study in the Sequenced Treatment Alternatives to Relieve Depression (STAR*D) Cohort. Biol Psychiatry 63:1103-10
Laje, Gonzalo; Paddock, Silvia; Manji, Husseini et al. (2007) Genetic markers of suicidal ideation emerging during citalopram treatment of major depression. Am J Psychiatry 164:1530-8
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Faraday, Nauder; Yanek, Lisa R; Mathias, Rasika et al. (2007) Heritability of platelet responsiveness to aspirin in activation pathways directly and indirectly related to cyclooxygenase-1. Circulation 115:2490-6
Bray, P F; Mathias, R A; Faraday, N et al. (2007) Heritability of platelet function in families with premature coronary artery disease. J Thromb Haemost 5:1617-23
Paddock, Silvia; Laje, Gonzalo; Charney, Dennis et al. (2007) Association of GRIK4 with outcome of antidepressant treatment in the STAR*D cohort. Am J Psychiatry 164:1181-8
Mandal, Diptasri M; Sorant, Alexa J M; Atwood, Larry D et al. (2006) Allele frequency misspecification: effect on power and Type I error of model-dependent linkage analysis of quantitative traits under random ascertainment. BMC Genet 7:21

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