Cited by 716Lipoproteins and Cardiovascular HealthLipid metabolism and disordersGenetic Associations and Epidemiology

Triglyceride-mediated pathways and coronary disease: collaborative analysis of 101 studies

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‡·2010·The Lancet

Abstract

Background Whether triglyceride-mediated pathways are causally relevant to coronary heart disease is uncertain. We studied a genetic variant that regulates triglyceride concentration to help judge likelihood of causality.Methods We assessed the -1131T>C (rs662799) promoter polymorphism of the apolipoprotein A5 (APOA5) gene in relation to triglyceride concentration, several other risk factors, and risk of coronary heart disease. We compared disease risk for genetically-raised triglyceride concentration (20,842 patients with coronary heart disease, 35,206 controls) with that recorded for equivalent differences in circulating triglyceride concentration in prospective studies (302 430 participants with no history of cardiovascular disease; 12,785 incident cases of coronary heart disease during 2.79 million person-years at risk). We analysed -1131T>C in 1795 people without a history of cardiovascular disease who had information about lipoprotein concentration and diameter obtained by nuclear magnetic resonance spectroscopy.Findings The minor allele frequency of -1131T>C was 8% (95% CI 7-9). -1131T>C was not significantly associated with several non-lipid risk factors or LDL cholesterol, and it was modestly associated with lower HDL cholesterol (mean difference per C allele 3.5% [95% CI 2.6-4.6]; 0.053 mmol/L [0.039-0.068]), lower apolipoprotein AI (1.3% [0.3-2.3]; 0.023 g/L [0.005-0.041]), and higher apolipoprotein B (3.2% [1.3-5.1]; 0.027 g/L [0.011-0.043]). By contrast, for every C allele inherited, mean triglyceride concentration was 16.0% (95% CI 12.9-18.7), or 0.25 mmol/L (0.20-0.29), higher (p=4.4x10(-24)). The odds ratio for coronary heart disease was 1.18 (95% CI 1.11-1.26; p=2.6x10(-7)) per C allele, which was concordant with the hazard ratio of 1.10 (95% CI 1.08-1.12) per 16% higher triglyceride concentration recorded in prospective studies. -1131T>C was significantly associated with higher VLDL particle concentration (mean difference per C allele 12.2 nmol/L [95% CI 7.7-16.7]; p=9.3x10(-8)) and smaller HDL particle size (0.14 nm [0.08-0.20]; p=7.0x10(-5)), factors that could mediate the effects of triglyceride.Interpretation These data are consistent with a causal association between triglyceride-mediated pathways and coronary heart disease.Funding British Heart Foundation, UK Medical Research Council, Novartis.

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  • Triglyceride-rich remnant particles have approximately the same effect on the risk of cardiovascular disease as LDL particles, as suggested by the current study's results extending prior findings.

    “The results of the current study extend those findings by suggesting that triglyceride-rich remnant particles have approximately the same effect on the risk of cardiovascular disease as LDL particles.”

    From Association of Triglyceride-Lowering <i>LPL</i> Variants and LDL-C–Lowering <i>LDLR</i> Variants With Risk of Coronary Heart Disease (2019) · cites this paper as [28]

    The Discussion (page unavailable) describes VLDL and remnant lipoproteins as potentially proatherogenic, and reports findings consistent with a causal role for triglyceride-mediated pathways in coronary heart disease. It does not compare the effect of remnant particles with that of LDL particles or establish approximately equal effects; its reported outcome is coronary heart disease rather than cardiovascular disease broadly. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • The association between triglycerides and cardiovascular risk is well established from epidemiological studies, genome-wide analyses, and Mendelian randomization studies.

    “The association between triglycerides and cardiovascular (CV) risk is well established from epidemiological studies,1-5 genome-wide analyses,6-8 and Mendelian randomization studies.9,10”
  • Clinical benefit of therapies that lower LDL-C by reducing LDL particle mass is proportional to the absolute reduction in LDL-C, because on average reductions in LDL-C and LDL particles are concordant.

    “Therefore, the clinical benefit of therapies that lower LDL-C by reducing LDL particle mass will be proportional to the absolute reduction in LDLC, because-on average-the reduction in LDL-C and LDL particles will be concordant [34,50,54,55].”
  • Genetic studies of NPC1L1 mutations support ezetimibe's benefit: naturally occurring inactivating mutations are associated with reduced plasma LDL-C and reduced coronary artery disease risk.

    “The beneficial effect of ezetimibe is also supported by genetic studies of mutations in NPC1L1; naturally occurring mutations that inactivate the protein were found to be associated with reduced plasma LDL-C and reduced risk for CAD [55,269,270].”
  • Recent data strongly support triglyceride-rich lipoproteins as a cardiovascular risk factor, although the role of triglycerides has been debated.

    “Although the role of TG as a risk factor for CVD has been strongly debated, recent data strongly favour the role of TG-rich lipoproteins as a risk factor for CVD.121”

    From ESC/EAS Guidelines for the management of dyslipidaemias (2011) · cites this paper as [121]

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Authors
‡
Affiliations
University of Cambridge (GB)
Corresponding author
‡
Venue
The Lancet
Publisher
Elsevier BV
Published
2010-05
Volume
375
Issue
9726
Pages
1634-1639
ISSN
  • 0099-5355 (ISSN-L)
  • 0140-6736
OpenAlex
W2144516660
Cited by
716
References
37
Citations by year
2026: 10 · 2025: 24 · 2024: 29 · 2023: 29 · 2022: 47 · 2021: 49 · 2020: 53 · 2019: 55 · 2018: 50 · 2017: 36 · 2016: 51 · 2015: 51 · 2014: 48 · 2013: 45 · 2012: 47
FWCI
62.17
Type
journal article
Language
en
Update notices
erratum (2010-07-10)
Open access
Locations
  • The Lancet (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Pure Amsterdam UMC (publishedVersion)
  • University of Birmingham Research Portal (University of Birmingham) (publishedVersion, other-oa)
  • Research at the University of Copenhagen (University of Copenhagen) (publishedVersion)
  • Amsterdam UMC (VU Amsterdam) - Institutional Repository (publishedVersion)
  • Bristol Research (University of Bristol) (publishedVersion)
  • Socio-Environmental Systems Modeling (acceptedVersion)
  • Research Publications (Maastricht University) (submittedVersion, other-oa)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • Leiden Repository (Leiden University) (submittedVersion)
  • UCL Discovery (University College London) (submittedVersion)
  • Figshare (submittedVersion)
  • Leicester Research Archive (University of Leicester) (submittedVersion, other-oa)
  • Explore Bristol Research (submittedVersion)
  • University of Southern Denmark Research Portal (University of Southern Denmark) (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion, other-oa)
Funders
  • British Heart Foundation
  • Novartis
  • Medical Research Council
Topics
  • Health Sciences › Medicine › Surgery › Lipoproteins and Cardiovascular Health
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Lipid metabolism and disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
Keywords
triglycerides, coronary artery disease, APOA5, APOA5 -1131T>C polymorphism, genetic association, triglyceride concentration, HDL cholesterol, apolipoprotein A-I, apolipoprotein B, lipoprotein concentration, lipoprotein particle size, causal inference, genetic risk factors
MeSH terms
Apolipoprotein A-V, Apolipoproteins, Apolipoproteins A, Coronary Disease, Gene Frequency, Genotype, Humans, Lipids, Lipoproteins, HDL, Lipoproteins, LDL, Lipoproteins, VLDL, Particle Size, Promoter Regions, Genetic, Risk Factors, Triglycerides, Polymorphism, Single Nucleotide, Mendelian Randomization Analysis

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