Section 41
Chapter 40,581

Lipids and serum apoproteins in subjects with slight or mild coronary atherosclerosis evaluated with angiography

Magnavacchi, P.; Boiardi, L.; Barbagallo, M.; Novo, S.; Bertolotti, M.; Benassi, A.; Butturini, L.; Biagi, R.; Pedrazzini, F.; Barbagallo, C.M.

Cardiologia 37(5): 351-355


ISSN/ISBN: 0393-1978
PMID: 1423368
Accession: 040580838

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In this study 126 subjects (91 males and 35 females, range of age 43-65 years) were studied by coronary angiography. We considered positive for coronary atherosclerosis also patients showing mild or moderate stenosis (> or = 25%). In all subjects we have evaluated serum lipid and apoprotein A-I, B, C-II, C-III and E levels; therefore also cholesterol concentrations in all lipoprotein fractions, separated by sequential ultracentrifugation (VLDL d < 1.006, LDL d 1.006-1.063, HDL d > 1.063 g/ml) and apoprotein B in LDL have been measured. Subjects with coronary atherosclerosis have shown significantly higher levels of total cholesterol, LDL-cholesterol, total cholesterol/HDL-cholesterol and LDL-cholesterol/HDL-cholesterol ratios than controls. Therefore, a lower apo A-I/apo B ratio in males and a higher LDL-apo B levels in females has been found in subjects with coronary atherosclerosis in comparison with controls. The stepwise multiple analysis has demonstrated that LDL-cholesterol levels is the parameter that best correlates with the presence of coronary atherosclerosis. These data confirm the importance of the reduction of LDL-cholesterol levels in primary and secondary prevention of coronary heart disease.