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Circulation, Vol 85, 30-36, Copyright © 1992 by American Heart Association

ARTICLES

Lipoprotein profile in men with peripheral vascular disease. Role of intermediate density lipoproteins and apoprotein E phenotypes

M Senti, X Nogues, J Pedro-Botet, J Rubies-Prat and F Vidal-Barraquer
Department of Medicine, Hospital del Mar, Universidad Autonoma de Barcelona, Spain.

BACKGROUND. The role of lipoprotein disturbances in the development of peripheral vascular disease (PVD) has not been sufficiently clarified. METHODS AND RESULTS. The relations among concentrations of intermediate density lipoproteins (IDL), apoprotein (apo) B, apo E, and other lipoproteins were studied in 102 men with PVD and 100 healthy men who formed the control group. Patients with PVD had significantly higher levels of serum triglycerides, very low density lipoprotein (VLDL) cholesterol, VLDL triglycerides, VLDL proteins, IDL cholesterol, and IDL triglycerides and lower levels of high density lipoproteins (HDL) than controls. Serum cholesterol and triglycerides were normal in 30 patients (cholesterol, less than 5.2 mmol/l; triglycerides, less than 2.3 mmol/l), who had significant increases in IDL triglycerides and significant decreases in HDL cholesterol compared with the 47 controls, who had normal cholesterol and triglyceride levels. Patients with more severe distal involvement showed higher cholesterol and triglycerides carried by IDL and a greater reduction in HDL cholesterol. Smoking patients with PVD showed increased VLDL cholesterol and VLDL triglycerides and lower HDL concentrations. Apo E polymorphism in our study population does not differ from that reported for other European populations. Alleles epsilon 2 and epsilon 4 had a major impact on serum triglycerides and VLDL lipids in our patients with PVD. CONCLUSIONS. Lipoprotein disturbances are a major risk factor for PVD. IDL abnormalities play an important role in the development and severity of PVD and should also be considered a vascular risk factor in normocholesterolemic and normotriglyceridemic patients.

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