Small and medium sized HDL particles are protectively associated with coronary calcification in a cross-sectional population-based sample

Chobufo Ditah, James Otvos, Hisham Nassar, Dorith Shaham, Ronit Sinnreich, Jeremy D. Kark*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

Background and aims: Failure of trials to observe benefits by elevating plasma high-density lipoprotein cholesterol (HDL-C) has raised serious doubts about HDL-C's atheroprotective properties. We aimed to identify protective HDL biomarkers by examining the association of nuclear magnetic resonance (NMR) measures of total HDL-particle (HDL-P), large HDL-particle, and small and medium-sized HDL-particle (MS-HDL-P) concentrations and average HDL-particle size with coronary artery calcification (CAC), which reflects the burden of coronary atherosclerosis, and compare with that of HDL-C. Methods: Using a cross-sectional design, 504 Jerusalem residents (274 Arabs and 230 Jews), recruited by population-based probability sampling, had HDL measured by NMR spectroscopy. CAC was determined by multidetector helical CT-scanning using Agatston scoring. Independent associations between the NMR measures and CAC (comparing scores ≥100 vs. <100) were assessed with multivariable binary logistic models. Results: Comparing tertile 3 vs. tertile 1, we observed protective associations of HDL-P (multivariable-adjusted OR 0.42, 95% CI 0.22-0.79, plinear trend = 0.002) and MS-HDL-P (OR 0.36, 95% CI 0.19-0.69), plinear trend = 0.006 with CAC, which persisted after further adjustment for HDL-C. HDL-C was not significantly associated with CAC (multivariable-adjusted OR 0.59, 95% CI 0.27-1.29 for tertiles 3 vs. 1, plinear trend = 0.49). Large HDL-P and average particle size (which are highly correlated; r = 0.83) were not associated with CAC: large HDL-P (OR 0.77, 95% CI 0.33-1.83, plinear trend = 0.29) and average HDL-P size (OR 0.72, 95% CI 0.35-1.48, plinear trend = 0.58). Conclusions: MS-HDL-P represents a protective subpopulation of HDL particles. HDL-P and MS-HDL-P were more strongly associated with CAC than HDL-C. Based on the accumulating evidence, incorporation of MS-HDL-P or HDL-P into the routine prediction of CHD risk should be evaluated.

Original languageAmerican English
Pages (from-to)124-131
Number of pages8
JournalAtherosclerosis
Volume251
DOIs
StatePublished - 1 Aug 2016
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2016 Elsevier Ireland Ltd.

Keywords

  • Arabs
  • Coronary calcification
  • HDL cholesterol
  • HDL particles
  • Jews
  • Large HDL particles
  • Medium-sized HDL particles
  • Small HDL particles

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