SUBFRACTIONS OF ATHEROGENIC APOB-LIPOPROTEIDES IN PATIENTS WITH SEVERE HYPERCHOLESTEROLEMIA

Aim. To investigate on the relation of lipoproteide (a) (Lpa), subfractions of intermediate density lipoproteides (IDL) and low density lipoproteides (LDL) with the probability of familial hypercholestrolemia diagnosis (FHE).Material and methods. Totally, 114 patients included, with severe hypercholesterolemia (LDL-C >4,9 mM/L), with no known coronary heart disease and not taking hypolipidemic therapy. For the probability assessment of FHE, Dutch Lipid Clinics Network criteria were applied. Lipid profile parameters were measured by enzymatic method; Lpa — by immune enzyme method; lipoproteides subfractions — with the Lipoprint® system (Quantimetrix, USA).Results. All patients were selected to subgroups in accordance with the Dutch criteria: I group — with low FHE probability (3-5 points, n=86) and II — with definite and porobable FHE (≥6 points, n=28). Patients from II group had higher atherogenic apoB100-containing lipoproteides (a) levels — 25,5±27,8 and 42,8±41,5 mg/dL (р=0,014), small dense subfractions of LDL — sdLDL: 2,3±3,7 and 7,1±10,1 mg/dL (р