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[An immunoenzyme method of determining apoprotein B and its diagnostic value in ischemic heart disease]
Insights
Measuring blood apoprotein B (apo-B) can help diagnose coronary artery disease early. This biomarker is especially valuable for males under 50 with potential atherosclerosis.
Area of Science:
- Cardiovascular Medicine
- Biochemistry
- Diagnostic Medicine
Background:
- Coronary artery disease (CAD) is a leading cause of mortality worldwide.
- Low-density lipoproteins (LDL) play a crucial role in the development of atherosclerosis.
- Apoprotein B (apo-B) is the primary protein component of LDL, making it a potential indicator of cardiovascular risk.
Purpose of the Study:
- To investigate the correlation between serum apo-B levels and the presence and extent of coronary atherosclerosis.
- To evaluate the utility of apo-B measurements in the early diagnosis of coronary artery disease.
Main Methods:
- Enzyme immunoassays were employed to quantify serum apo-B levels.
- Participants included patients with diagnosed coronary atherosclerosis, those with angiographically normal coronary arteries, and healthy controls.
- Serum apo-B levels were correlated with angiographic findings, patient sex, and age.
Main Results:
- Serum apo-B levels were significantly associated with the presence and severity of coronary atherosclerotic lesions.
- Elevated apo-B levels were observed in patients with more extensive coronary atherosclerosis.
- The diagnostic value of apo-B was particularly pronounced in males under 50 years of age.
Conclusions:
- Serum apo-B measurement is a promising biomarker for the early detection of coronary artery disease.
- Apo-B levels correlate with the extent of atherosclerosis, aiding in risk stratification.
- This assay may prove particularly beneficial for identifying at-risk males below 50.
Abstract:
Enzyme immunoassays were used to measure blood apoprotein B (apo-B), a major protein component of low-density lipoproteins, in 96 patients with coronary disease due to coronary atherosclerosis, 21 patients with angiographically intact coronary arteries, and 130 apparently normal individuals (donors). The results of serum apo-B measurements were correlated to the presence or absence of atherosclerotic coronary arterial lesions, the spread of coronary atherosclerosis, as evidenced by selective coronarography, and patients' sex and age. The measurement of serum apo-B may be helpful in early diagnosis of coronary disease, being particularly valuable in males below 50 years of age.