The dependence of damage to the outer cell membranes in patients with acute myocardial infarction on the characteristics of the fractional distribution of cholesterol was studied. Determination of 5-nucleotidase activity is an objective criterion for assessing damage to the outer cell membranes, which can be considered a risk factor for thrombus formation and progression of coronary heart disease.

In patients with chronic ischemic heart disease, an increase in the content of total cholesterol, triglycerides, - and ppe--lipoproteins and a decrease in the level of -cholesterol and -lipoproteins were revealed. In the following days until the end of the study, an increase in the concentration of triglycerides and ppe--lipoproteins was observed.