Abstract
Since hypercholesterolemia directly modifies the composition of erythrocytes plasma membrane, the influence of statins on erythrocytes has been researched. The beneficial effects of statins on clinical events may involve mechanisms that modify endothelial dysfunction, plaque stability, thrombus formation and inflammatory responses. The aim of the study was to evaluate the hypolipemic efficacy and effects of pravastatin and simvastatin on erythrocyte membrane fluidity and damage of erythrocytes in patients with type 2 hypercholesterolemia in comparison with a control group of healthy subjects. The study involved 53 patients affected by type 2 hypercholesterolemia (mean age, 53.3 +/- 10.3) with initial total serum cholesterol (TC) levels > 250 mg/dL, LDL-cholesterol (LDL-C) levels > 170 mg/dL, and triglycerides (TG) levels < 400 mg/dL. The control group consisted of 30 healthy individuals (mean age 56.9 +/- 6.3). Statins were given for 12 weeks. The dosages for oral administration of simvastatin and pravastatin were 20 mg/day. Laboratory tests were carried out before and after 4 and 12 weeks of the pharmacological treatment. The damage to plasma membrane of erythrocytes was measured on the basis of lipid peroxidation. The fluidit...Continue Reading
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