ABSTRACT
The study of the relation of atherosclerosis with lipid metabolism (LM) remains still very important. The aim of presented work was the investigation of peculiarities of lipoprotein lipase (LPL) and LM at IHD in different age and sex groups; also the search of possible relation of LPL activity changes with myocardial contractility function and coronarography data at IHD. 47 patients (15 females, 32 males) with IHD were investigated. They were divided on 3 groups: 1 -<50 years (n=14); 2 - 50-59 years (n=14); 3 - >/=60 years (n=19). Patients were investigated by coronarography and echocardiography. Main parameters of LM were determined by enzyme-linked immunoassay. LPL activity was defined by potentiometric method. It was observed significant difference between levels of LPL activity of different age groups (p(1-2)=0,027, p(1-3)<0,001, p(2-3)=0,035). Significant difference in this parameter by sex feature did not observed. The degree of damage in anterior descending branch of left coronary artery negatively correlated with LPL activity (r=-0,5598, p<0,001). Ejection fraction (EF) revealed positive correlation with LPL activity (r=0,4362, p=0,002). The degree of damage of left coronary artery, in particular, medial segment of circumflex branch correlated with LM parameters. EF positively correlated with high-density lipoprotein cholesterol blood level (r=0,3548, p=0,036). LPL activity in patients with IHD significantly decreased with aging. From obtained results it will be supposed that LPL activity and LM parameters influences on the damage degree, basically, left coronary artery.
