Complexoproductive and antiheparin properties of low density lipoproteins (LDL). II. Interaction of serum low density lipoproteins (LDL) with heparin of different molecular weight.

Quantity of unsoluble LDL complexes with heparin of different molecular weight in hypo-, normo-, and hyperlipemic blood serum in the presence of CaCl2 was estimated. At the same weight concentration the biggest quantity of LDL complexes are formed with heparin with heparin of the molecular weight 16000, the quantity is smaller with heparin of the molecular weight 5100, and it is the smallest with heparin of molecular weight 3700.