Related Experiment Videos
Correlation Between Apolipoprotein B and Severity of Coronary Artery Stenosis in Individuals Aged 45 and Above: A
Dingchao Lv1,2,3, Mao Ye4,5, He Huang4,5
1The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi Province, China, sxmu.edu.cn.
Insights
Elevated Apolipoprotein B (ApoB) levels are significantly associated with more severe coronary artery stenosis in individuals over 45. This finding highlights ApoB as a potential biomarker for assessing cardiovascular risk.
Area of Science:
- Cardiology
- Biomarkers
- Medical Research
Background:
- Apolipoprotein B (ApoB) is a recognized biomarker for cardiovascular risk.
- The relationship between ApoB levels and the severity of coronary artery stenosis (Gensini score) in individuals aged 45 and above requires further investigation.
Purpose of the Study:
- To investigate the correlation between Apolipoprotein B (ApoB) levels and the severity of coronary artery stenosis, as measured by the Gensini score.
- To evaluate ApoB as a potential biomarker for assessing cardiovascular risk in patients aged 45 and older.
Main Methods:
- A retrospective cross-sectional analysis of 818 patients undergoing coronary angiography.
- Measurement of lipid parameters, including ApoB, from fasting blood samples.
- Assessment of coronary artery stenosis severity using the Gensini score and multivariate regression analysis to determine associations.
Main Results:
- Patients with moderate-to-severe stenosis (Gensini score ≥ 36) exhibited significantly higher ApoB levels compared to those with mild stenosis (Gensini score < 36).
- Multivariate regression confirmed ApoB as an independent predictor of moderate-to-severe coronary stenosis (β = 46.1, p < 0.001).
- A consistent positive correlation was observed between higher ApoB levels and increased Gensini scores across all clinical subgroups.
Conclusions:
- Apolipoprotein B (ApoB) levels show a significant positive correlation with the severity of coronary artery stenosis in individuals aged 45 and above.
- These findings suggest ApoB holds potential clinical value for evaluating coronary artery disease severity.
Background:
Apolipoprotein B (ApoB) is widely recognized as a biomarker significantly associated with cardiovascular risk. However, the correlation between ApoB and the severity of coronary artery anatomical stenosis (Gensini score) in individuals aged 45 and above has not been fully studied.
Methods:
A cross-sectional retrospective analysis was conducted, involving 818 patients who underwent coronary angiography. Fasting blood samples were collected to measure lipid parameters, including ApoB. The severity of coronary artery stenosis was assessed using the Gensini score, and patients were divided into two groups based on the median cut-off (<36 vs. ≥ 36). A multivariate regression model was used to evaluate the association between ApoB and the severity of stenosis after adjusting for potential confounding factors.
Results:
Compared to the mild stenosis group (Gensini score < 36), the moderate-to-severe stenosis group (score ≥ 36) had significantly higher levels of ApoB (1.0 ± 0.3 vs. 0.9 ± 0.3 g/L) and LDL-c (p < 0.05), while HDL-c and ApoA levels were lower (p < 0.001). Multivariate regression analysis indicated that ApoB was independently associated with moderate-to-severe coronary stenosis (β = 46.1, 95% CI: 31.3-61.0 p < 0.001). Sensitivity analysis using continuous Gensini score confirmed the association (β = 22.57, 95% CI: 13.67-31.47, p < 0.0001). Dose-response analysis revealed that higher ApoB tertiles were associated with progressively higher Gensini scores (P for trend = 0.001). Stratified analysis revealed a consistent positive correlation between ApoB and Gensini scores across all clinical subgroups (all p < 0.05), with no significant interactions detected (all P for interaction > 0.05).
Conclusion:
ApoB levels are significantly positively correlated with the severity of coronary artery stenosis in the population aged ≥ 45 years, indicating its potential clinical application value in evaluation.
Related Concept Videos
Coronary Artery Disease I: Introduction
Coronary Artery Disease IV: Preventive Measures
Coronary Artery Disease II: Pathophysiology
Atherosclerosis II: Clinical Manifestations and Diagnostic Tests
Coronary Artery Disease III: Clinical Manifestations
Atherosclerosis III: Management