Predictive value of plasma apolipoprotein B in myocardial infarction in young subjects. Correlations with coronarographic data
1984
In recent epidemiological studies, apolipoprotein-B (apo B), the main low density lipoprotein (LDL), was found to be significantly elevated in patients with early atherosclerosis. The aim of this study was to compare plasma apo B in a population of men who had suffered myocardial infarction before 45 years of age (N = 31) with a control population (N = 22). In the coronary group, there were 27 angiographies between the end of the first and third month. The plasma lipoproteins were separated by ultracentrifugation, cholesterol and triglycerides measured by enzymatic methods and apo B by Laurell's technique of immunoelectrophoresis. Our results showed significantly higher apo B in the coronary group (p less than 0.05). Serum cholesterol, triglycerides, very low density lipoprotein (VLDL) and LDL cholesterol were also significantly higher whilst high density lipoprotein (HDL) cholesterol was significantly lower. In addition, apo B levels correlated with the severity of the coronary lesions on angiography. Therefore, the plasma apo B level is a good predictive indicator of the presence of early coronary atherosclerosis and its severity.
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