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Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans
Published on: August 28, 2018
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Decrease in oxidized high-density lipoprotein is associated with slowed progression of coronary artery calcification:
Takashi Miki1, Toru Miyoshi1, Kazuhiko Kotani2
1Department of Cardiovascular Medicine, Okayama University Graduate School of Medicine, Density and Pharmaceutical Sciences, Okayama, Japan.
Atherosclerosis
|February 16, 2019
Summary
A decrease in oxidized high-density lipoprotein (oxHDL) levels was linked to slower progression of coronary artery calcification (CAC). This suggests oxHDL may be a target for preventing atherosclerosis.
Area of Science:
- Cardiovascular research
- Atherosclerosis studies
- Lipoprotein metabolism
Background:
- Oxidized high-density lipoprotein (oxHDL) has diminished anti-inflammatory properties compared to HDL.
- The specific role of oxHDL in coronary artery calcification (CAC) pathogenesis is not fully understood.
- CAC is a key indicator of subclinical atherosclerosis.
Purpose of the Study:
- To prospectively examine the association between changes in oxHDL levels and CAC progression.
- To evaluate oxHDL as a potential biomarker and therapeutic target in atherosclerosis.
Main Methods:
- A substudy of 140 patients from a multicenter trial was conducted.
- Patients received pitavastatin with or without eicosapentaenoic acid.
- Coronary artery calcification (CAC) was measured at baseline and 1-year follow-up using computed tomography.
Main Results:
- A significant decrease in oxHDL levels was observed post-treatment (167 to 122 U/ml, p < 0.001).
- Annual CAC change positively correlated with changes in oxHDL (r=0.17, p=0.04), triglycerides, and hs-CRP.
- A decrease in oxHDL was independently associated with reduced CAC progression (OR, 0.95; 95% CI, 0.90-0.99; p=0.04).
Conclusions:
- Reduced oxHDL levels correlate with attenuated CAC progression.
- oxHDL may serve as a potential therapeutic target for atherosclerosis prevention.
- Further research into oxHDL's role in cardiovascular disease is warranted.
Keywords:
AtherosclerosisComputed tomographyCoronary artery calcificationHigh-density lipoproteinOxidized lipoproteinMore Related Videos
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