Related Experiment Video
Updated: Aug 2, 2026

Cell-free Biochemical Fluorometric Enzymatic Assay for High-throughput Measurement of Lipid Peroxidation in High Density Lipoprotein
Published on: October 12, 2017
The relationship between plasma apolipoprotein A-IV levels and coronary heart disease
1Third Hospital, Beijing University Medical School, Beijing 100083, China.
Insights
Lower plasma apolipoprotein A-IV (apoA-IV) levels are associated with coronary heart disease (CHD) and predict atherosclerosis severity. ApoA-IV may also influence triglyceride metabolism.
Area of Science:
- Cardiovascular Medicine
- Biochemistry
- Lipid Metabolism
Background:
- Coronary atherosclerosis is a leading cause of cardiovascular disease.
- The role of apolipoprotein A-IV (apoA-IV) in coronary atherosclerosis requires further investigation.
- Understanding novel biomarkers for cardiovascular risk is crucial for early detection and prevention.
Purpose of the Study:
- To investigate the association between plasma apoA-IV levels and the presence and severity of coronary atherosclerosis.
- To explore the relationship between apoA-IV and established cardiovascular risk factors.
Main Methods:
- Plasma apoA-IV levels were measured using ELISA in 181 patients undergoing coronary angiography (CAG).
- Patients were categorized into coronary heart disease (CHD) and control groups based on CAG findings.
- Atherosclerosis severity was quantified using stenosis scoring; logistic regression analyses were employed.
Main Results:
- Plasma apoA-IV levels were significantly lower in patients with CHD compared to controls.
- A weak negative correlation was observed between apoA-IV levels and the severity of coronary atherosclerosis.
- ApoA-IV emerged as a relatively independent risk factor for CHD and showed a positive correlation with triglyceride levels.
Conclusions:
- Plasma apoA-IV may serve as a valuable predictor for coronary heart disease and the severity of coronary atherosclerosis.
- ApoA-IV potentially plays a significant role in triglyceride metabolism.
- Further research into apoA-IV's clinical utility in cardiovascular risk assessment is warranted.
Objective:
To evaluate the relationship between plasma apoA-IV levels and coronary atherosclerosis and to explore its relation to other risk factors.
Methods:
Using ELISA techniques, plasma apoA-IV levels were quantified in 181 patients who underwent coronary angiography (CAG). Patients were divided according to their coronary status into a coronary heart disease (CHD) group (stenotic lesion on CAG, n = 118) and a control group (normal CAG, n = 63). The severity of atherosclerosis was assessed by stenosis scoring of the different lesions. Other parameters, including apoA-I, apoB, Lp(a), HDL-C, LDL-C, TG, and TC, were measured as well. Univariate, logistic regression analyses were used to define the relationship between coronary atherosclerosis and plasma apoA-IV levels.
Results:
When compared with the control group, plasma apoA-IV levels were found to be lower in the CHD group. There was a weak negative correlation between plasma apoA-IV levels and the severity of coronary atherosclerosis. ApoA-IV was found to be a relatively independent risk factor for CHD. We also found a positive correlation between apoA-IV and triglyceride levels.
Conclusions:
ApoA-IV may be important in the prediction of CHD and coronary atherosclerosis severity. It may also play an important role in the metabolism of triglycerides.
Related Concept Videos
Coronary Artery Disease I: Introduction
Coronary Artery Disease II: Pathophysiology
Coronary Artery Disease III: Clinical Manifestations
Coronary Artery Disease IV: Preventive Measures
Coronary Artery Disease V: Interprofessional Care
Atherosclerosis III: Management

