Cited by 692Lipoproteins and Cardiovascular HealthAtherosclerosis and Cardiovascular DiseasesGenetic Associations and Epidemiology

Elevated remnant cholesterol causes both low-grade inflammation and ischemic heart disease, whereas elevated low-density lipoprotein cholesterol causes ischemic heart disease without inflammation

Open access
Varbo, Anette, Benn, Marianne, Tybjærg-Hansen, Anne, Nordestgaard, Børge G.·2013·Circulation

Abstract

Background—: Elevated nonfasting remnant cholesterol and low-density lipoprotein (LDL) cholesterol are causally associated with ischemic heart disease (IHD), but whether elevated nonfasting remnant cholesterol and LDL cholesterol both cause low-grade inflammation is currently unknown. Methods and Results—: We studied 60 608 individuals from the Copenhagen General Population Study, the Copenhagen City Heart Study, and the Copenhagen Ischemic Heart Disease study, of whom 10 668 had IHD diagnosed between 1977 and 2011. We genotyped for variants affecting levels of nonfasting remnant cholesterol, LDL cholesterol, C-reactive protein by CRP alleles, and C-reactive protein by IL6R alleles. Using a multidirectional mendelian randomization design, we investigated possible causal associations between the lipoproteins and C-reactive protein and between the lipoproteins and IHD. A 1-mmol/L(39 mg/dL) higher level of nonfasting remnant cholesterol was associated observationally with a 37% (95% confidence interval, 35–39) higher C-reactive protein level and causally with a 28% (95% confidence interval, 10–48) higher level. For LDL cholesterol, a 1-mmol/L (39-mg/dL) higher level was associated observationally with a 7% (95% confidence interval, 6–7) higher C-reactive protein level, but we found no causal association. Likewise, higher levels of C-reactive protein did not associate causally with elevated nonfasting remnant cholesterol or LDL cholesterol. Finally, the causal risk ratio for IHD for a 1-mmol/L (39-mg/dL) higher level was 3.3 (95% confidence interval, 2.1–5.2) for nonfasting remnant cholesterol and 1.8 (95% confidence interval, 1.5–2.2) for LDL cholesterol. The causal associations for remnant cholesterol were present even in those without diabetes mellitus and obesity. Conclusions—: Elevated nonfasting remnant cholesterol is causally associated with low-grade inflammation and with IHD, whereas elevated LDL cholesterol is associated causally with IHD without inflammation.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1161/circulationaha.113.003008

Cites

28 of 28 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • When lipid metabolism is imbalanced, elevated levels of RC can lead to its infiltration into the arterial wall, causing cholesterol deposition beneath the endothelium and accelerating the formation of foam cells and lipid plaques, while provoking a low-grade inflammatory response, significantly increasing the risk of AS.

    “In summary, when lipid metabolism is imbalanced, elevated levels of RC can lead to its infiltration into the arterial wall, causing cholesterol deposition beneath the endothelium and accelerating the formation of foam cells and lipid plaques, while provoking a low-grade inflammatory response. These processes significantly increase the risk of AS.”

    From Remnant cholesterol, lipid ratios, and the severity of coronary artery lesions: a retrospective cohort study in patients with coronary heart disease (2025) · cites this paper as [31]

    Split into 2 atoms — 0 confirmed, 2 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.

    Experimental — accuracy not yet measured
  • Mendelian randomization analyses confirm a causal relationship between lifelong TRL elevation and ASCVD.

    “Observational cohorts demonstrate that higher TG and remnant cholesterol predict cardiovascular events independently of LDL-C, while Mendelian randomization analyses confirm a causal relationship between lifelong TRL elevation and ASCVD.”

    From Targeting triglycerides for cardiovascular risk reduction (2026) · cites this paper as [22]

    In “Risk of IHD: Observational and Causal Associations,” the paper reports a higher estimated risk of ischemic heart disease with genetically higher remnant cholesterol. That supports the causal-inference point, but the study measures remnant cholesterol rather than TRL elevation generally, and its clinical outcome is ischemic heart disease rather than ASCVD broadly. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • Systemically, TRLs and their remnants have been linked to markers of low-grade inflammation, including hs-CRP, circulating cytokines such as IL-6 and TNF-α, and immune cell activation.

    “Systemically, TRLs and their remnants have been linked to markers of low-grade inflammation, including hs-CRP, circulating cytokines such as IL-6 and TNF-α, and immune cell activation [22–28].”

    From Targeting triglycerides for cardiovascular risk reduction (2026) · cites this paper as [22]

    The Laboratory Analyses section (page unavailable) says CRP was measured as high-sensitivity CRP, and the Observational Associations section links higher remnant cholesterol to higher CRP. The cited paper does not establish the claimed links to circulating IL-6, TNF-α, or immune cell activation; its use of IL6R genetic variants is not a measurement of circulating IL-6. (LLM, conf=0.88)

    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”

    From Association Between Triglyceride Lowering and Reduction of Cardiovascular Risk Across Multiple Lipid-Lowering Therapeutic Classes: A Systematic Review and Meta-Regression Analysis of Randomized Controlled Trials (2019) · cites this paper as [10]

    The Abstract describes a Mendelian randomization study and reports that triglycerides and remnant cholesterol are highly correlated. The Risk of IHD: Observational and Causal Associations section reports increased ischemic heart disease risk with genetically higher remnant cholesterol. The study tests remnant cholesterol, however, rather than a direct triglyceride–cardiovascular risk association; it therefore supports the Mendelian-randomization portion of the claim only indirectly. (LLM, conf=0.83)

    Experimental — accuracy not yet measured
  • Studies suggest that elevated TG and remnant cholesterol levels are causally related to whole body low-grade inflammation, in contrast to LDL-C.

    “Studies suggest that elevated TG and remnant cholesterol levels are causally related to whole body low-grade inflammation, in contrast to LDL-C.12,142”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Varbo, A., Benn, M., Tybjærg-Hansen, A., & Nordestgaard, B. G.
Affiliations
  • University of Copenhagen (DK)
  • From the Department of Clinical Biochemistry ( A.V., B.G.N.) and Copenhagen General Population Study (A.V., M.B., A.T.-H., B.G.N.), Herlev Hospital, Copenhagen University Hospital, Copenhagen, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark (A.V., M.B., A.T.-H., B.G.N.); Department of Clinical Biochemistry, Gentofte Hospital, Copenhagen University Hospital, Copenhagen, Denmark (M.B.); Copenhagen City Heart Study, Frederiksberg Hospital, Copenhagen...
Venue
Circulation
Published
2013-09-17
Volume
128
Issue
12
Pages
1298-1309
ISSN
  • 0009-7322 (ISSN-L)
  • 1524-4539
OpenAlex
W2150100875
Cited by
692
References
28
Citations by year
2026: 84 · 2025: 98 · 2024: 112 · 2023: 79 · 2022: 59 · 2021: 47 · 2020: 42 · 2019: 25 · 2018: 26 · 2017: 26 · 2016: 36 · 2015: 26 · 2014: 25 · 2013: 6
FWCI
30.53
Type
journal article
Language
en
Open access
Locations
  • Circulation (publishedVersion)
  • PubMed (publishedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (submittedVersion)
Topics
  • Health Sciences › Medicine › Surgery › Lipoproteins and Cardiovascular Health
  • Life Sciences › Immunology and Microbiology › Immunology › Atherosclerosis and Cardiovascular Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
Keywords
remnant cholesterol, LDL cholesterol, ischemic heart disease, low-grade inflammation, C-reactive protein, IL-6 receptor, Mendelian randomization, causal relationship, dyslipidemia, cardiovascular risk
MeSH terms
Adult, C-Reactive Protein, Cholesterol, Denmark, Diabetes Mellitus, Female, Genotype, Humans, Inflammation, Lipoproteins, Cholesterol, LDL, Male, Middle Aged, Risk Factors, Triglycerides, Myocardial Ischemia

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review