2013
DOI: 10.1186/1471-2156-14-33
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Investigation of gene-by-sex interactions for lipid traits in diverse populations from the population architecture using genomics and epidemiology study

Abstract: BackgroundHigh-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), and triglyceride (TG) levels are influenced by both genes and the environment. Genome-wide association studies (GWAS) have identified ~100 common genetic variants associated with HDL-C, LDL-C, and/or TG levels, mostly in populations of European descent, but little is known about the modifiers of these associations. Here, we investigated whether GWAS-identified SNPs for lipid traits exhibited heterogeneity by se… Show more

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Cited by 27 publications
(24 citation statements)
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“…In addition, we also found that MTHFR 677TT genotype was associated with higher serum TG levels in females with overweight/obesity. Though heterogeneity by sex for lipid levels had been previously reported for other SNPs [33], the underlying mechanisms for the gender-specific association are unclear. It may be partly resulted from hormone action in combination with social and behavioral differences between men and women [29].…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…In addition, we also found that MTHFR 677TT genotype was associated with higher serum TG levels in females with overweight/obesity. Though heterogeneity by sex for lipid levels had been previously reported for other SNPs [33], the underlying mechanisms for the gender-specific association are unclear. It may be partly resulted from hormone action in combination with social and behavioral differences between men and women [29].…”
Section: Discussionmentioning
confidence: 99%
“…However, the underlying mechanism is unclear. Despite some advances in the identification of sex-specific genetic association with plasma lipid levels [11, 32, 33], few studies have explored the modifying effects of sex in the interactions between single nucleotide polymorphisms (SNPs) and overweight/obesity on lipid concentrations. Such exploration may provide valuable insight into the factors causing gender difference in the plasma lipid profile.…”
Section: Introductionmentioning
confidence: 99%
“…A sex-stratified meta-analysis of lipid-related gene variants in European Americans has shown that rs28927680 and rs3135506 SNPs near the ZNF259 gene region had a sex specific effect on fasting TG levels. This effect was replicable in Mexican Americans/Hispanics 12. Another meta-analysis of GWAS on metabolic syndrome (MetS) has identified the rs2075290 SNP in the intronic region of ZNF259 as TG-related loci in European populations 13.…”
Section: Introductionmentioning
confidence: 87%
“…Studying gene-by-environment (G×E) interactions is important, as it extends our 42 knowledge of the genetic architecture of complex traits and improves our understanding of the 43 underlying mechanisms of common diseases for novel and known loci (22)(23)(24). Several large-44 scale genome-wide G×E studies have successfully identified novel common variants accounting 45 for the environmental effects such as alcohol consumption and smoking status on lipid levels and 46 other CVD related traits (25)(26)(27)(28)(29)(30)(31)(32)(33)(34). These studies have successfully identified common variant loci 47 that were not detected via analysis of main effects alone.…”
Section: Introduction 29mentioning
confidence: 99%