Small HDL subclass is associated with coronary plaque stability: An optical coherence tomography study in patients with coronary artery disease.

Abstract

BACKGROUND:

The role of high-density lipoprotein (HDL) subclasses in atherosclerotic diseases remains an open question. Previous clinical trials have attempted to explore the predictive effect of HDL subspecies on cardiovascular risk. However, no studies have assessed the connections between these subclasses and characteristics of plaque microstructure.

OBJECTIVE:

To investigate the relationship of HDL subclasses and coronary plaque stability assessed by optical coherence tomography (OCT).

METHODS:

Morphological characteristics of 160 nontarget lesions from 85 patients with coronary artery disease were assessed by OCT. HDL subclass profiles were analyzed using nondenaturing polyacrylamide gel electrophoresis.

RESULTS:

The plasma levels of small HDL subclass (percentage or concentration) were found to be positively associated with fibrous cap thickness (r = 0.232, P = .007; r = 0.243, P = .005) and negatively with maximum lipid arc (r = -0.240, P = .005; r = -0.252, P = .003) and lipid core length (r = -0.350, P < .001; r = -0.367, P < .001). Multivariate logistic regression analysis showed the small HDL subclass (percentage or concentration) (odds ratio [OR]: 0.457, 95% confidence interval [CI]: 0.214-0.974, P = .043; OR: 0.438, 95% CI: 0.204-0.938, P = .034) to be an independent factor in predicting OCT-detected thin-cap fibroatheroma of nontarget lesions.

CONCLUSION:

High levels of small HDL are associated with coronary nontarget plaque stability. Our findings suggest that the small HDL subtype might represent the atheroprotective activity of HDL.

• Authors: Xuedong Wang, Xinxin Liu, Zulong Xie, Jinwei Tian, Xingtao Huang, Ruoxi Zhang, Shuyuan Chen, Jingbo Hou, Bo Yu
• Journal: Journal of clinical lipidology (J Clin Lipidol) 2019 Mar - Apr Vol. 13 Issue 2 Pg. 326-334.e2 ISSN: 1933-2874 [Print] United States
• PMID: 30665770 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
• Copyright: Copyright © 2018 National Lipid Association. Published by Elsevier Inc. All rights reserved.

Chemical References

• Lipoproteins, HDL

Topics

• Coronary Artery Disease (blood, diagnostic imaging)
• Female
• Humans
• Lipoproteins, HDL (blood)
• Male
• Middle Aged
• Plaque, Atherosclerotic (blood, diagnostic imaging)
• Tomography, Optical Coherence