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[Serum apolipoprotein AI, B levels in patients with coronary diseases]
Y He1
1Fourth Military Medical University, Xian.
Insights
Apolipoproteins A1 and B, and their ratio, are more effective than traditional lipid profiles in assessing coronary artery disease (CAD) severity and distinguishing it from other conditions.
Area of Science:
- Cardiovascular Medicine
- Biochemistry
- Medical Diagnostics
Context:
- Coronary artery disease (CAD) diagnosis relies on various biomarkers.
- Traditional lipid profiles (total cholesterol, triglycerides, LDL-C, HDL-C) are commonly used.
- The diagnostic and prognostic value of apolipoproteins in CAD requires further investigation.
Purpose:
- To compare the efficacy of apolipoprotein A1 (apo A1), apolipoprotein B (apoB), and the apoB/apoA1 ratio against standard lipid profiles for CAD assessment.
- To evaluate these markers in differentiating CAD severity, including angina and myocardial infarction.
Summary:
- Serum levels of total cholesterol, triglycerides, LDL-C, HDL-C, apo A1, and apoB were measured in 100 CAD patients and 141 controls.
- Significant differences were observed in these variables between CAD and non-CAD groups, as well as between angina and myocardial infarction subgroups.
- Regression analysis indicated that apo A1 and the apoB/apoA1 ratio are more sensitive and specific than traditional lipid indices for estimating coronary artery stenosis and differentiating CAD.
Impact:
- Apolipoprotein markers offer improved accuracy in diagnosing and assessing the severity of coronary artery disease.
- This finding can lead to more precise diagnostic tools and personalized treatment strategies for CAD patients.
- Enhanced differentiation of CAD from other conditions using these biomarkers can optimize clinical decision-making.
Abstract:
The levels of total cholesterol, triglyceride, LDL-C, HDL-C, apolipoprotein A1 and apolipoprotein B in the serum were measured in a selected series of 100 CAD patients (77 men and 23 women) who underwent coronary angiography and 141 non-CAD controls. Mean values of those variables differed significantly between the CAD and non-CAD groups matched in age, body weight, hypertension and smoking. There are significant difference in apolipoproteins A1, B and the ratio of apolipoprotein B to A1 between angina and myocardial infarction groups. Using stratified and multivariate stepwise regression analysis, it was shown that the apo A1, apoB/apoA1 are more sensitive and specific than the ordinary indices (e.g. total cholesterol, triglycerides, LDL-C and HDL-C) in estimating the degree of coronary artery stenosis and the differentiation of CAD from other diseases.