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Biol Psychol. 2013 Apr;93(1):184-9. doi: 10.1016/j.biopsycho.2013.02.006. Epub 2013 Feb 19.

Chronic family stress moderates the association between a TOMM40 variant and triglyceride levels in two independent Caucasian samples.

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  • 1Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, USA. rong.jiang@duke.edu

Abstract

TOMM40 SNP rs157580 has been associated with triglyceride levels in genome-wide association studies (GWAS). Chronic caregiving stress moderates the association between triglyceride levels and a nearby SNP rs439401 that is associated with triglyceride levels in GWAS. Here, we report data from two independent Caucasian samples (242 U.S. women and men; 466 Danish men) testing the hypothesis that chronic family stress also moderates the association between rs157580 and triglyceride levels. The interaction of rs157580 and family stress in predicting triglyceride levels was statistically significant in the U.S. sample (p=0.004) and marginally significant (p=0.075) in the Danish sample. The G allele of rs157580 was associated with increased triglyceride levels among family stressed cases in both samples compared with A/A cases, but not among controls. Chronic family stress moderates the association of rs157580 variants with triglyceride levels and should be taken into account for disease risk assessment and potential intervention.

Copyright © 2013 Elsevier B.V. All rights reserved.

PMID:
23435269
[PubMed - indexed for MEDLINE]
PMCID:
PMC3739426
Free PMC Article
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