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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.1
- 수록면
- 69 - 77 (9page)
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Background Pleiotropy is a widespread phenomenon in complex human diseases. Jointly analyzing multiple phenotypes can improve power performance of detecting genetic variants and uncover the underlying genetic mechanism. Objective This study aims to detect the association between genetic variants in a genomic region and multiple phenotypes. Methods We develop the aggregated Cauchy association test to detect the association between rare variants in a genomic region and multiple phenotypes (abbreviated as “Multi-ACAT”). Multi-ACAT first detects the association between each rare variant and multiple phenotypes based on reverse regression and obtains variant-level p-values, then takes linear combination of transformed p-values as the test statistic which approximately follows Cauchy distribution under the null hypothesis. Results Extensive simulation studies show that when the proportion of causal variants in a genomic region is extremely small, Multi-ACAT is more powerful than the other several methods and is robust to bi-directional effects of causal variants. Finally, we illustrate our proposed method by analyzing two phenotypes [systolic blood pressure (SBP) and diastolic blood pressure (DBP)] from Genetic Analysis Workshop 19 (GAW19). Conclusion The Multi-ACAT computes extremely fast, does not consider complex distributions of multiple correlated phenotypes, and can be applied to the case with noise phenotypes.
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참고문헌 (26)
참고문헌 신청
Laura Almasy / 2011 / Genetic Analysis Workshop 17 mini-exome simulation / BMC Proceedings 5(S9)
Hugues Aschard / 2014 / Maximizing the Power of Principal-Component Analysis of Correlated Phenotypes in Genome-wide Association Studies / The American Journal of Human Genetics 94(5):662~676
Vikas Bansal / 2010 / Statistical analysis strategies for association studies involving rare variants / Nature Reviews Genetics 11(11):773~785
Lin S. Chen / 2012 / An Exponential Combination Procedure for Set-Based Association Tests in Sequencing Studies / The American Journal of Human Genetics 91(6):977~986
Rounak Dey / 2017 / A Fast and Accurate Algorithm to Test for Binary Phenotypes and Its Application to PheWAS / The American Journal of Human Genetics 101(1):37~49
Hugues Aschard / 2014 / Maximizing the Power of Principal-Component Analysis of Correlated Phenotypes in Genome-wide Association Studies / The American Journal of Human Genetics 94(5):662~676
Vikas Bansal / 2010 / Statistical analysis strategies for association studies involving rare variants / Nature Reviews Genetics 11(11):773~785
Lin S. Chen / 2012 / An Exponential Combination Procedure for Set-Based Association Tests in Sequencing Studies / The American Journal of Human Genetics 91(6):977~986
Rounak Dey / 2017 / A Fast and Accurate Algorithm to Test for Binary Phenotypes and Its Application to PheWAS / The American Journal of Human Genetics 101(1):37~49
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