Cited by 56Fatty Acid Research and HealthCholesterol and Lipid MetabolismLipoproteins and Cardiovascular Health

High-oleic canola oil consumption enriches LDL particle cholesteryl oleate content and reduces LDL proteoglycan binding in humans

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Jones, Peter J.H., MacKay, Dylan S., Senanayake, Vijitha K., Pu, Shuaihua, Jenkins, David J.A., Connelly, Philip W., Lamarche, Benoît, Couture, Patrick +6 more·2015·Atherosclerosis

Abstract

Oleic acid consumption is considered cardio-protective according to studies conducted examining effects of the Mediterranean diet. However, animal models have shown that oleic acid consumption increases LDL particle cholesteryl oleate content which is associated with increased LDL-proteoglycan binding and atherosclerosis. The objective was to examine effects of varying oleic, linoleic and docosahexaenoic acid consumption on human LDL-proteoglycan binding in a non-random subset of the Canola Oil Multi-center Intervention Trial (COMIT) participants. COMIT employed a randomized, double-blind, five-period, cross-over trial design. Three of the treatment oil diets: 1) a blend of corn/safflower oil (25:75); 2) high oleic canola oil; and 3) DHA-enriched high oleic canola oil were selected for analysis of LDL-proteoglycan binding in 50 participants exhibiting good compliance. LDL particles were isolated from frozen plasma by gel filtration chromatography and LDL cholesteryl esters quantified by mass-spectrometry. LDL-proteoglycan binding was assessed using surface plasmon resonance. LDL particle cholesterol ester fatty acid composition was sensitive to the treatment fatty acid compositions, with the main fatty acids in the treatments increasing in the LDL cholesterol esters. The corn/safflower oil and high-oleic canola oil diets lowered LDL-proteoglycan binding relative to their baseline values (p = 0.0005 and p = 0.0012, respectively). At endpoint, high-oleic canola oil feeding resulted in lower LDL-proteoglycan binding than corn/safflower oil (p = 0.0243) and DHA-enriched high oleic canola oil (p = 0.0249), although high-oleic canola oil had the lowest binding at baseline (p = 0.0344). Our findings suggest that high-oleic canola oil consumption in humans increases cholesteryl oleate percentage in LDL, but in a manner not associated with a rise in LDL-proteoglycan binding.

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Crossref · 10.1016/j.atherosclerosis.2014.12.010

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  • Cohort studies suggest that consumption of olive oil, but not mixed animal and plant sources of monounsaturated fat, is linked to lower risk; while vegetable oil sources of monounsaturated fat increase LDL cholesteryl oleate but reduce LDL proteoglycan binding.

    “For instance, cohort studies suggest that consumption of olive oil, but not mixed animal and plant sources of monounsaturated fat, is linked to lower risk;352 while vegetable oil sources of monounsaturated fat increase LDL cholesteryl oleate but reduce LDL proteoglycan binding.357”

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Authors
Jones, P. J. H., MacKay, D. S., Senanayake, V. K., Pu, S., Jenkins, D. J. A., Connelly, P. W., Lamarche, B., Couture, P., Kris-Etherton, P. M., West, S. G., Liu, X., Fleming, J. A., Hantgan, R. R., & Rudel, L. L.
Affiliations
  • University of Manitoba (CA)
  • St. Michael's Hospital (CA)
  • Université Laval (CA)
  • Pennsylvania State University (US)
  • Wake Forest University Health Sciences (US)
Venue
Atherosclerosis
Publisher
Elsevier BV
Published
2015-02
Volume
238
Issue
2
Pages
231-238
ISSN
0021-9150 (ISSN-L)
OpenAlex
W2162228990
Cited by
56
References
37
Citations by year
2026: 5 · 2025: 2 · 2024: 1 · 2023: 3 · 2022: 4 · 2021: 10 · 2020: 6 · 2019: 4 · 2018: 6 · 2017: 6 · 2016: 5 · 2015: 4
FWCI
4.66
Type
journal article
Language
en
Open access
Locations
  • Atherosclerosis (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (UL1TR000127)
  • National Heart, Lung, and Blood Institute (HL 49373, P01HL049373)
  • National Center for Advancing Translational Sciences
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Fatty Acid Research and Health
  • Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
  • Health Sciences › Medicine › Surgery › Lipoproteins and Cardiovascular Health
Keywords
linoleic acid, docosahexaenoic acid, dietary fatty acid composition, Mediterranean diet
MeSH terms
Rapeseed Oil, Adult, Canada, Cardiovascular Diseases, Cholesterol Esters, Corn Oil, Dietary Fats, Docosahexaenoic Acids, Double-Blind Method, Fatty Acids, Monounsaturated, Female, Humans, Cholesterol, LDL, Male, Middle Aged, Proteoglycans, Risk Factors, Safflower Oil, Time Factors, United States, Cross-Over Studies, Oleic Acid, Linoleic Acid, Diet, Mediterranean, Risk Reduction Behavior

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