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Triglyceride-Rich Lipoproteins and Coronary Artery Disease Risk

Triglyceride-Rich Lipoproteins and Coronary Artery Disease Risk Despite ample success in reducing coronary artery disease (CAD) risk through reduction of low-density lipoprotein cholesterol (LDL-C), there remains substantial residual risk. 1–4 Recent prospective studies have demonstrated that elevated triglycerides (TGs) are independent predictors of CAD risk. 5–9 Furthermore, TGs are strongly associated with incident CAD events in patients with low LDL-C levels treated with statin. 10 Thus, triglyceride-rich lipoproteins (TRLs) offer a potentially orthogonal risk factor to LDL-C for lowering CAD risk, but only if TRLs are causally associated with atherosclerotic disease. 11 Human genetics has the potential to reveal the causal relationships of biomarkers found to be associated with disease outcomes. 12–15 For example, genetic variants associated with plasma LDL-C levels are consistently associated with CAD risk in the right direction, 15–18 consistent with a causal relationship. Importantly, similar studies have causally implicated the key TG-regulating enzyme lipoprotein lipase (LPL) in CAD risk. A common gain-of-function LPL variant, S447X, confers an antiatherogenic lipid profile characterized by low levels of TGs, and in several studies, it has been associated with lower incidence of vascular disease or myocardial infarction (MI). 19–25 Conversely, several loss-of-function (LOF) LPL variants associated with elevated TG levels have been reported to be http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Arteriosclerosis, Thrombosis, and Vascular Biology Wolters Kluwer Health

Triglyceride-Rich Lipoproteins and Coronary Artery Disease Risk

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References (81)

Copyright
© 2015 American Heart Association, Inc.
Subject
Commentary on Cutting Edge Science
ISSN
1079-5642
eISSN
1524-4636
DOI
10.1161/ATVBAHA.114.305172
pmid
25573854
Publisher site
See Article on Publisher Site

Abstract

Despite ample success in reducing coronary artery disease (CAD) risk through reduction of low-density lipoprotein cholesterol (LDL-C), there remains substantial residual risk. 1–4 Recent prospective studies have demonstrated that elevated triglycerides (TGs) are independent predictors of CAD risk. 5–9 Furthermore, TGs are strongly associated with incident CAD events in patients with low LDL-C levels treated with statin. 10 Thus, triglyceride-rich lipoproteins (TRLs) offer a potentially orthogonal risk factor to LDL-C for lowering CAD risk, but only if TRLs are causally associated with atherosclerotic disease. 11 Human genetics has the potential to reveal the causal relationships of biomarkers found to be associated with disease outcomes. 12–15 For example, genetic variants associated with plasma LDL-C levels are consistently associated with CAD risk in the right direction, 15–18 consistent with a causal relationship. Importantly, similar studies have causally implicated the key TG-regulating enzyme lipoprotein lipase (LPL) in CAD risk. A common gain-of-function LPL variant, S447X, confers an antiatherogenic lipid profile characterized by low levels of TGs, and in several studies, it has been associated with lower incidence of vascular disease or myocardial infarction (MI). 19–25 Conversely, several loss-of-function (LOF) LPL variants associated with elevated TG levels have been reported to be

Journal

Arteriosclerosis, Thrombosis, and Vascular BiologyWolters Kluwer Health

Published: Feb 1, 2015

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