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VLDL Cholesterol Accounts for One-Half of the Risk of Myocardial Infarction Associated With apoB-Containing Lipoproteins.
- Source :
-
Journal of the American College of Cardiology (JACC) . Dec2020, Vol. 76 Issue 23, p2725-2735. 11p. - Publication Year :
- 2020
-
Abstract
- <bold>Background: </bold>Plasma apolipoprotein B (apoB) is a composite measure of all apoB-containing lipoproteins causing atherosclerotic cardiovascular disease; however, it is unclear which fraction of risk is explained by cholesterol and triglycerides, respectively, in very low-density lipoproteins (VLDLs).<bold>Objectives: </bold>The authors tested the hypothesis that VLDL cholesterol and triglycerides each explain part of the myocardial infarction risk from apoB-containing lipoproteins.<bold>Methods: </bold>Nested within 109,751 individuals from the Copenhagen General Population Study, the authors examined 25,480 subjects free of lipid-lowering therapy and myocardial infarction at study entry. All had measurements of plasma apoB (quantitating number of apoB-containing lipoproteins) and cholesterol and triglyceride content of VLDL, intermediate-density lipoproteins (IDLs), and low-density lipoproteins (LDLs).<bold>Results: </bold>During a median 11 years of follow-up, 1,816 were diagnosed with myocardial infarction. Per 1-mmol/l higher levels, multivariable-adjusted hazard ratios for myocardial infarction were 2.07 (95% confidence interval [CI]: 1.81 to 2.36) for VLDL cholesterol, 1.19 (95% CI: 1.14 to 1.25) for VLDL triglycerides, 5.38 (95% CI: 3.73 to 7.75) for IDL cholesterol, and 1.86 (95% CI: 1.62 to 2.14) for LDL cholesterol. Per 1-g/l higher plasma apoB, the corresponding value was 2.21 (95% CI: 1.90 to 2.58). In a step-up Cox regression, risk factors for myocardial infarction entered by importance as VLDL cholesterol, systolic blood pressure, smoking, and IDL + LDL cholesterol, whereas VLDL triglycerides did not enter the model. VLDL cholesterol explained 50% and IDL + LDL cholesterol 29% of the risk of myocardial infarction from apoB-containing lipoproteins, whereas VLDL triglycerides did not explain risk.<bold>Conclusions: </bold>VLDL cholesterol explained one-half of the myocardial infarction risk from elevated apoB-containing lipoproteins, whereas VLDL triglycerides did not explain risk. [ABSTRACT FROM AUTHOR]
- Subjects :
- *LIPOPROTEINS
*MYOCARDIAL infarction
*CHOLESTEROL
*LOW density lipoproteins
*SYSTOLIC blood pressure
*TRIGLYCERIDES
*RELATIVE medical risk
*RESEARCH
*RESEARCH methodology
*LDL cholesterol
*MEDICAL cooperation
*EVALUATION research
*COMPARATIVE studies
*APOLIPOPROTEINS
*QUESTIONNAIRES
*LONGITUDINAL method
MYOCARDIAL infarction diagnosis
Subjects
Details
- Language :
- English
- ISSN :
- 07351097
- Volume :
- 76
- Issue :
- 23
- Database :
- Academic Search Index
- Journal :
- Journal of the American College of Cardiology (JACC)
- Publication Type :
- Academic Journal
- Accession number :
- 147506421
- Full Text :
- https://doi.org/10.1016/j.jacc.2020.09.610