[Composition of VLDL, LDL and HDL lipoprotein fractions in type IIa, IIb, III, IV, and V hyperlipemia patients in comparison with healthy individuals].

The chemical composition of VLDL, LDL and HDL was studied in 82 patients with primary hyperlipoproteinaemia (37 type IIa, 7 type IIb, 3 type II, 25 type IV, 10 type V) and in ten metabolically normal individuals. Lipoprotein fractions were prepared by preparative ultracentrifugation. Each fraction was analysed for cholesterol, triglycerides, phospholipids and protein. Differences between patients and normal individuals, and between the individual types of hyperlipoproteinaemia were evident in the composition of all three lipoprotein fractions.