Cited by 67Lipoproteins and Cardiovascular HealthCholesterol and Lipid MetabolismDiabetes, Cardiovascular Risks, and Lipoproteins

Association of lowering apolipoprotein B with cardiovascular outcomes across various lipid-lowering therapies: systematic review and meta-analysis of trials

Open access
Khan, Safi U, Khan, Muhammad U, Valavoor, Shahul, Khan, Muhammad Shahzeb, Okunrintemi, Victor, Mamas, Mamas A, Leucker, Thorsten M, Blaha, Michael J +1 more·2020·European Journal of Preventive Cardiology

Abstract

Aims: The effect of therapeutic lowering of apolipoprotein B (apoB) on mortality and major adverse cardiovascular events is uncertain. It is also unclear whether these potential effects vary by different lipid-lowering strategies. Methods: A total of 29 randomized controlled trials were selected using PubMed, Cochrane Library and EMBASE through 2018. We selected trials of therapies which ultimately clear apolipoprotein B particles by upregulating low-density lipoprotein receptor (LDL-R) expression (statins, ezetimibe, proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitors, bile acid sequestrants) or therapies which reduce apolipoprotein B independent of LDL-R (cholesteryl ester transfer protein inhibitor, fibrates, niacin, omega-3 fatty acids) with sample size of ≥1000 patients and follow-up of ≥1 year. The meta-regression and meta-analyses were constructed using a random effects model. Results: In 332,912 patients, meta-regression analyses showed relative risks of 0.95 for all-cause mortality (95% confidence interval 0.92–0.99) and 0.93 (0.88–0.98) for cardiovascular mortality for every 10 mg/dL decrease in apolipoprotein B by all interventions combined. Reduction in all-cause mortality was limited to statins (0.92 (0.86–0.98)). For MACE, the relative risk per 10 mg/dL reduction in apolipoprotein B was 0.93 (0.90–0.97) for all therapies combined, with both statin (0.88 (0.83–0.93)) and non-statin therapies (0.96 (0.94–0.99)). which clear apolipoprotein B by upregulating LDL-R showing significant reductions; whereas interventions which lower apolipoprotein B independent of LDL-R did not demonstrate this effect (1.02 (0.81–1.30)). Conclusion: While both statin and established non-statin therapies (PCSK9 inhibitor and ezetimibe) reduced cardiovascular risk per decrease in apolipoprotein B, interventions which reduce apolipoprotein B independently of LDL-R were not associated with cardiovascular benefit.

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  • Type 2 diabetes dyslipidemia is marked by elevated triglyceride-rich lipoproteins (VLDL), intermediate-density lipoprotein, and remnant particles, which metabolically lead to low HDL-C and increased small dense LDL-C.

    “T2D dyslipidemia is characterized by increased levels of triglyceriderich lipoproteins (VLDL), intermediate-density lipoprotein, and remnant particlesdall apo Becontaining particlesd which metabolically lead to low levels of HDL-C and increased levels of small, dense LDL-C.”

    From American Association of Clinical Endocrinology Clinical Practice Guideline: Developing a Diabetes Mellitus Comprehensive Care Plan-2022 Update. (2022) · cites this paper as [311]

    The Introduction (page unavailable) identifies VLDL and intermediate-density lipoproteins as apoB-containing particles. The Discussion (page unavailable) mentions patients with type 2 diabetes who have high triglycerides and low HDL-C, but it does not establish that this profile characterizes type 2 diabetes generally or that the particles metabolically cause low HDL-C and increased small, dense LDL-C. (LLM, conf=0.82)

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  • Meta-analyses of lipid-lowering trials showed that statins and other therapies which clear apoB-containing lipoproteins by upregulating LDL receptor expression, such as PCSK9 inhibitors, reduce cardiovascular risk proportional to the decrease in apoB concentration observed in these trials.

    “Meta-analyses of lipid-lowering trials showed that statins and other therapies which clear apoB-containing lipoproteins by upregulating LDL receptor expression, such as PCSK9 inhibitors, reduce cardiovascular risk proportional to the decrease in apoB concentration observed in these trials [77,78].”

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Research works printed but not linked: 4

  1. [8]8. Ridker PM, Rifai N, Cook NR, et al. Non-HDL choles- terol, apolipoproteins A-I and B100, standard lipid meas- ures, lipid ratios, and CRP as risk factors for cardiovascular disease in women. JAMA 2005; 294: 326-333.
  2. [56]56. Holmes MV and Ala-Korpela M. What is 'LDL choles- terol'? Nat Rev Cardiol 2019; 16: 197-198.
  3. [59]59. Ray KK, Stoekenbroek RM, Kallend D, et al. Effect of an siRNA therapeutic targeting PCSK9 on atherogenic lipoproteins. Circulation 2018; 138: 1304-1316.
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Authors
Khan, S. U., Khan, M. U., Valavoor, S., Khan, M. S., Okunrintemi, V., Mamas, M. A., Leucker, T. M., Blaha, M. J., & Michos, E. D.
Affiliations
  • West Virginia University (US)
  • East Carolina University (US)
  • Royal Stoke University Hospital (GB)
  • Johns Hopkins University (US)
Corresponding author
Khan, Safi U
Venue
European Journal of Preventive Cardiology
Published
2019-09-02
Volume
27
Issue
12
Pages
1255-1268
ISSN
  • 2047-4873 (ISSN-L)
  • 2047-4881
OpenAlex
W2972061003
Cited by
67
References
67
Citations by year
2026: 11 · 2025: 10 · 2024: 11 · 2023: 18 · 2022: 5 · 2021: 6 · 2020: 5 · 2019: 1
FWCI
0.88
Type
journal article
Language
en
Open access
Locations
  • European Journal of Preventive Cardiology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Johns Hopkins University
  • National Institute of General Medical Sciences (U54GM104942)
Topics
  • Health Sciences › Medicine › Surgery › Lipoproteins and Cardiovascular Health
  • Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
Keywords
apolipoprotein B, LDL receptor, statins, ezetimibe, PCSK9 inhibitors, bile acid sequestrants, CETP inhibitors, fibrates, nicotinic acid, omega-3 fatty acids, lipid-lowering therapy, major adverse cardiovascular events, all-cause mortality, cardiovascular mortality
MeSH terms
Hypolipidemic Agents, Apolipoproteins B, Cardiovascular Diseases, Humans, Prognosis, Risk Factors, Biomarkers

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