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Direct and indirect genetic effects on triglycerides through omics and correlated phenotypes.


ABSTRACT: Even though there has been great success in identifying lipid-associated single-nucleotide polymorphisms (SNPs), the mechanisms through which the SNPs act on each trait are poorly understood. The emergence of large, complex biological data sets in well-characterized cohort studies offers an opportunity to investigate the genetic effects on trait variability as a way of informing the causal genes and biochemical pathways that are involved in lipoprotein metabolism. However, methods for simultaneously analyzing multiple omics, environmental exposures, and longitudinally measured, correlated phenotypes are lacking. The purpose of our study was to demonstrate the utility of the structural equation modeling (SEM) approach to inform our understanding of the pathways by which genetic variants lead to disease risk. With the SEM method, we examine multiple pathways directly and indirectly through previously identified triglyceride (TG)-associated SNPs, methylation, and high-density lipoprotein (HDL), including sex, age, and smoking behavior, while adding in biologically plausible direct and indirect pathways. We observed significant SNP effects (P?

SUBMITTER: Justice AE 

PROVIDER: S-EPMC6157130 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature

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Direct and indirect genetic effects on triglycerides through omics and correlated phenotypes.

Justice Anne E AE   Howard Annie Green AG   Fernández-Rhodes Lindsay L   Graff Misa M   Tao Ran R   North Kari E KE  

BMC proceedings 20180917 Suppl 9


Even though there has been great success in identifying lipid-associated single-nucleotide polymorphisms (SNPs), the mechanisms through which the SNPs act on each trait are poorly understood. The emergence of large, complex biological data sets in well-characterized cohort studies offers an opportunity to investigate the genetic effects on trait variability as a way of informing the causal genes and biochemical pathways that are involved in lipoprotein metabolism. However, methods for simultaneo  ...[more]

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2022-12-21 | GSE205680 | GEO